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libavcodec/vc1.c

21aa398f	/*
10b9c374	* VC-1 and WMV3 decoder
c52ff688	* Copyright (c) 2006-2007 Konstantin Shishkov
be3492ec	* Partly based on vc9.c (c) 2005 Anonymous, Alex Beregszaszi, Michael Niedermayer
21aa398f	*
b78e7197	* This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or
21aa398f	* modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either
b78e7197	* version 2.1 of the License, or (at your option) any later version.
21aa398f	*
b78e7197	* FFmpeg is distributed in the hope that it will be useful,
21aa398f	* but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public
b78e7197	* License along with FFmpeg; if not, write to the Free Software
5509bffa	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21aa398f	/ /*
bad5537e	* @file libavcodec/vc1.c
10b9c374	* VC-1 and WMV3 decoder
21aa398f	* */
c269cf68	#include "internal.h"
21aa398f	#include "dsputil.h" #include "avcodec.h" #include "mpegvideo.h"
22c3029d	#include "vc1.h"
10b9c374	#include "vc1data.h"
be3492ec	#include "vc1acdata.h"
5ecb0677	#include "msmpeg4data.h"
28296f9c	#include "unary.h"
bf672ac7	#include "simple_idct.h"
199436b9	#include "mathops.h"
c5b42f4a	#include "vdpau_internal.h"
0d33db8a
9da235c8	#undef NDEBUG #include <assert.h>
0d33db8a	#define MB_INTRA_VLC_BITS 9 #define DC_VLC_BITS 9
be3492ec	#define AC_VLC_BITS 9
0d33db8a	static const uint16_t table_mb_intra[64][2];
21aa398f
2ce151f8	/**
10b9c374	* Init VC-1 specific tables and VC1Context members * @param v The VC1Context to initialize
2ce151f8	* @return Status */
10b9c374	static int vc1_init_common(VC1Context *v)
21aa398f	{ static int done = 0;
bf2bc926	int i = 0;
21aa398f	v->hrd_rate = v->hrd_buffer = NULL;
e5540b3f	/* VLC tables */
21aa398f	if(!done) { done = 1;
a5c14fca	init_vlc(&ff_vc1_bfraction_vlc, VC1_BFRACTION_VLC_BITS, 23, ff_vc1_bfraction_bits, 1, 1, ff_vc1_bfraction_codes, 1, 1, 1); init_vlc(&ff_vc1_norm2_vlc, VC1_NORM2_VLC_BITS, 4, ff_vc1_norm2_bits, 1, 1, ff_vc1_norm2_codes, 1, 1, 1); init_vlc(&ff_vc1_norm6_vlc, VC1_NORM6_VLC_BITS, 64, ff_vc1_norm6_bits, 1, 1, ff_vc1_norm6_codes, 2, 2, 1); init_vlc(&ff_vc1_imode_vlc, VC1_IMODE_VLC_BITS, 7, ff_vc1_imode_bits, 1, 1, ff_vc1_imode_codes, 1, 1, 1);
e5540b3f	for (i=0; i<3; i++) {
a5c14fca	init_vlc(&ff_vc1_ttmb_vlc[i], VC1_TTMB_VLC_BITS, 16, ff_vc1_ttmb_bits[i], 1, 1, ff_vc1_ttmb_codes[i], 2, 2, 1); init_vlc(&ff_vc1_ttblk_vlc[i], VC1_TTBLK_VLC_BITS, 8, ff_vc1_ttblk_bits[i], 1, 1, ff_vc1_ttblk_codes[i], 1, 1, 1); init_vlc(&ff_vc1_subblkpat_vlc[i], VC1_SUBBLKPAT_VLC_BITS, 15, ff_vc1_subblkpat_bits[i], 1, 1, ff_vc1_subblkpat_codes[i], 1, 1, 1);
e5540b3f	} for(i=0; i<4; i++)
21aa398f	{
a5c14fca	init_vlc(&ff_vc1_4mv_block_pattern_vlc[i], VC1_4MV_BLOCK_PATTERN_VLC_BITS, 16, ff_vc1_4mv_block_pattern_bits[i], 1, 1, ff_vc1_4mv_block_pattern_codes[i], 1, 1, 1); init_vlc(&ff_vc1_cbpcy_p_vlc[i], VC1_CBPCY_P_VLC_BITS, 64, ff_vc1_cbpcy_p_bits[i], 1, 1, ff_vc1_cbpcy_p_codes[i], 2, 2, 1); init_vlc(&ff_vc1_mv_diff_vlc[i], VC1_MV_DIFF_VLC_BITS, 73, ff_vc1_mv_diff_bits[i], 1, 1, ff_vc1_mv_diff_codes[i], 2, 2, 1);
21aa398f	}
be3492ec	for(i=0; i<8; i++)
a5c14fca	init_vlc(&ff_vc1_ac_coeff_table[i], AC_VLC_BITS, vc1_ac_sizes[i],
be3492ec	&vc1_ac_tables[i][0][1], 8, 4, &vc1_ac_tables[i][0][0], 8, 4, 1); init_vlc(&ff_msmp4_mb_i_vlc, MB_INTRA_VLC_BITS, 64, &ff_msmp4_mb_i_table[0][1], 4, 2, &ff_msmp4_mb_i_table[0][0], 4, 2, 1);
21aa398f	}
e5540b3f	/* Other defaults / v->pq = -1; v->mvrange = 0; / 7.1.1.18, p80 */
21aa398f	return 0; }
2ce151f8	/*********************************************************************/ /
81169111	* @defgroup vc1bitplane VC-1 Bitplane decoding
2ce151f8	* @see 8.7, p56 * @{ */
81169111	/**
2ce151f8	* Imode types * @{ */
be3492ec	enum Imode { IMODE_RAW, IMODE_NORM2, IMODE_DIFF2, IMODE_NORM6, IMODE_DIFF6, IMODE_ROWSKIP, IMODE_COLSKIP };
2ce151f8	/** @} */ //imode defines
160d679c	/** Decode rows by checking if they are skipped
2ce151f8	* @param plane Buffer to store decoded bits * @param[in] width Width of this buffer * @param[in] height Height of this buffer * @param[in] stride of this buffer */
7cc84d24	static void decode_rowskip(uint8_t* plane, int width, int height, int stride, GetBitContext *gb){
d29f0cd9	int x, y; for (y=0; y<height; y++){
5fc32c27	if (!get_bits1(gb)) //rowskip
d29f0cd9	memset(plane, 0, width); else
115329f1	for (x=0; x<width; x++)
5fc32c27	plane[x] = get_bits1(gb);
d29f0cd9	plane += stride; } }
160d679c	/** Decode columns by checking if they are skipped
2ce151f8	* @param plane Buffer to store decoded bits * @param[in] width Width of this buffer * @param[in] height Height of this buffer * @param[in] stride of this buffer
63e24954	* @todo FIXME: Optimize
2ce151f8	*/
7cc84d24	static void decode_colskip(uint8_t* plane, int width, int height, int stride, GetBitContext *gb){
d29f0cd9	int x, y; for (x=0; x<width; x++){
5fc32c27	if (!get_bits1(gb)) //colskip
d29f0cd9	for (y=0; y<height; y++) plane[y*stride] = 0; else for (y=0; y<height; y++)
5fc32c27	plane[y*stride] = get_bits1(gb);
d29f0cd9	plane ++; } }
2ce151f8	/** Decode a bitplane's bits
81169111	* @param data bitplane where to store the decode bits * @param[out] raw_flag pointer to the flag indicating that this bitplane is not coded explicitly
be3492ec	* @param v VC-1 context for bit reading and logging
2ce151f8	* @return Status
63e24954	* @todo FIXME: Optimize
2ce151f8	*/
87dfe848	static int bitplane_decoding(uint8_t* data, int raw_flag, VC1Context v)
21aa398f	{
0d33db8a	GetBitContext *gb = &v->s.gb;
be3492ec	int imode, x, y, code, offset;
87dfe848	uint8_t invert, *planep = data; int width, height, stride;
21aa398f
87dfe848	width = v->s.mb_width; height = v->s.mb_height; stride = v->s.mb_stride;
5fc32c27	invert = get_bits1(gb);
a5c14fca	imode = get_vlc2(gb, ff_vc1_imode_vlc.table, VC1_IMODE_VLC_BITS, 1);
21aa398f
87dfe848	*raw_flag = 0;
21aa398f	switch (imode) { case IMODE_RAW:
e5540b3f	//Data is actually read in the MB layer (same for all tests == "raw")
87dfe848	*raw_flag = 1; //invert ignored
e5540b3f	return invert;
21aa398f	case IMODE_DIFF2: case IMODE_NORM2:
87dfe848	if ((height * width) & 1)
7cc84d24	{
5fc32c27	*planep++ = get_bits1(gb);
be3492ec	offset = 1;
7cc84d24	}
be3492ec	else offset = 0; // decode bitplane as one long line
87dfe848	for (y = offset; y < height * width; y += 2) {
a5c14fca	code = get_vlc2(gb, ff_vc1_norm2_vlc.table, VC1_NORM2_VLC_BITS, 1);
be3492ec	*planep++ = code & 1; offset++;
87dfe848	if(offset == width) {
be3492ec	offset = 0;
87dfe848	planep += stride - width;
7cc84d24	}
be3492ec	*planep++ = code >> 1; offset++;
87dfe848	if(offset == width) {
be3492ec	offset = 0;
87dfe848	planep += stride - width;
7cc84d24	}
d29f0cd9	}
21aa398f	break; case IMODE_DIFF6: case IMODE_NORM6:
87dfe848	if(!(height % 3) && (width % 3)) { // use 2x3 decoding for(y = 0; y < height; y+= 3) { for(x = width & 1; x < width; x += 2) {
a5c14fca	code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
be3492ec	if(code < 0){ av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n"); return -1; } planep[x + 0] = (code >> 0) & 1; planep[x + 1] = (code >> 1) & 1;
87dfe848	planep[x + 0 + stride] = (code >> 2) & 1; planep[x + 1 + stride] = (code >> 3) & 1; planep[x + 0 + stride * 2] = (code >> 4) & 1; planep[x + 1 + stride * 2] = (code >> 5) & 1;
6b250f09	}
87dfe848	planep += stride * 3;
be3492ec	}
87dfe848	if(width & 1) decode_colskip(data, 1, height, stride, &v->s.gb);
be3492ec	} else { // 3x2
8a66a390	planep += (height & 1) * stride;
87dfe848	for(y = height & 1; y < height; y += 2) { for(x = width % 3; x < width; x += 3) {
a5c14fca	code = get_vlc2(gb, ff_vc1_norm6_vlc.table, VC1_NORM6_VLC_BITS, 2);
be3492ec	if(code < 0){ av_log(v->s.avctx, AV_LOG_DEBUG, "invalid NORM-6 VLC\n"); return -1; } planep[x + 0] = (code >> 0) & 1; planep[x + 1] = (code >> 1) & 1; planep[x + 2] = (code >> 2) & 1;
87dfe848	planep[x + 0 + stride] = (code >> 3) & 1; planep[x + 1 + stride] = (code >> 4) & 1; planep[x + 2 + stride] = (code >> 5) & 1;
9c68c65a	}
87dfe848	planep += stride * 2;
9c68c65a	}
87dfe848	x = width % 3; if(x) decode_colskip(data , x, height , stride, &v->s.gb); if(height & 1) decode_rowskip(data+x, width - x, 1, stride, &v->s.gb);
d29f0cd9	}
21aa398f	break; case IMODE_ROWSKIP:
87dfe848	decode_rowskip(data, width, height, stride, &v->s.gb);
21aa398f	break;
7cc84d24	case IMODE_COLSKIP:
87dfe848	decode_colskip(data, width, height, stride, &v->s.gb);
21aa398f	break; default: break; } /* Applying diff operator */
d29f0cd9	if (imode == IMODE_DIFF2 \|\| imode == IMODE_DIFF6)
21aa398f	{
87dfe848	planep = data;
d29f0cd9	planep[0] ^= invert;
87dfe848	for (x=1; x<width; x++)
d29f0cd9	planep[x] ^= planep[x-1];
87dfe848	for (y=1; y<height; y++)
21aa398f	{
87dfe848	planep += stride; planep[0] ^= planep[-stride]; for (x=1; x<width; x++)
21aa398f	{
87dfe848	if (planep[x-1] != planep[x-stride]) planep[x] ^= invert; else planep[x] ^= planep[x-1];
21aa398f	} } } else if (invert) {
87dfe848	planep = data; for (x=0; x<stride*height; x++) planep[x] = !planep[x]; //FIXME stride
21aa398f	}
e5540b3f	return (imode<<1) + invert;
21aa398f	}
87dfe848
2ce151f8	/** @} */ //Bitplane group
21aa398f
00a75000	#define FILTSIGN(a) ((a) >= 0 ? 1 : -1) /** * VC-1 in-loop deblocking filter for one line * @param src source block type
81169111	* @param stride block stride
00a75000	* @param pq block quantizer * @return whether other 3 pairs should be filtered or not * @see 8.6 */
de861578	static av_always_inline int vc1_filter_line(uint8_t* src, int stride, int pq){
00a75000	uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
0a359cf1	int a0 = (2(src[-2stride] - src[ 1stride]) - 5(src[-1stride] - src[ 0stride]) + 4) >> 3; int a0_sign = a0 >> 31; /* Store sign / a0 = (a0 ^ a0_sign) - a0_sign; / a0 = FFABS(a0); / if(a0 < pq){ int a1 = FFABS((2(src[-4stride] - src[-1stride]) - 5(src[-3stride] - src[-2stride]) + 4) >> 3); int a2 = FFABS((2(src[ 0stride] - src[ 3stride]) - 5(src[ 1stride] - src[ 2stride]) + 4) >> 3); if(a1 < a0 \|\| a2 < a0){ int clip = src[-1stride] - src[ 0*stride]; int clip_sign = clip >> 31; clip = ((clip ^ clip_sign) - clip_sign)>>1;
00a75000	if(clip){
0a359cf1	int a3 = FFMIN(a1, a2); int d = 5 * (a3 - a0); int d_sign = (d >> 31); d = ((d ^ d_sign) - d_sign) >> 3; d_sign ^= a0_sign;
5a44906d	if( d_sign ^ clip_sign )
0a359cf1	d = 0; else{ d = FFMIN(d, clip); d = (d ^ d_sign) - d_sign; /* Restore sign / src[-1stride] = cm[src[-1stride] - d]; src[ 0stride] = cm[src[ 0*stride] + d]; } return 1;
00a75000	} } }
0a359cf1	return 0;
00a75000	} /** * VC-1 in-loop deblocking filter * @param src source block type
81169111	* @param step distance between horizontally adjacent elements * @param stride distance between vertically adjacent elements
00a75000	* @param len edge length to filter (4 or 8 pixels) * @param pq block quantizer * @see 8.6 / static void vc1_loop_filter(uint8_t src, int step, int stride, int len, int pq) { int i; int filt3; for(i = 0; i < len; i += 4){ filt3 = vc1_filter_line(src + 2step, stride, pq); if(filt3){ vc1_filter_line(src + 0step, stride, pq); vc1_filter_line(src + 1step, stride, pq); vc1_filter_line(src + 3step, stride, pq); } src += step * 4; } } static void vc1_loop_filter_iblk(MpegEncContext s, int pq) { int i, j; if(!s->first_slice_line) vc1_loop_filter(s->dest[0], 1, s->linesize, 16, pq); vc1_loop_filter(s->dest[0] + 8s->linesize, 1, s->linesize, 16, pq); for(i = !s->mb_x*8; i < 16; i += 8) vc1_loop_filter(s->dest[0] + i, s->linesize, 1, 16, pq); for(j = 0; j < 2; j++){ if(!s->first_slice_line) vc1_loop_filter(s->dest[j+1], 1, s->uvlinesize, 8, pq); if(s->mb_x) vc1_loop_filter(s->dest[j+1], s->uvlinesize, 1, 8, pq); } }
2ce151f8	/*********************************************************************/ / VOP Dquant decoding
be3492ec	* @param v VC-1 Context
2ce151f8	*/
10b9c374	static int vop_dquant_decoding(VC1Context *v)
21aa398f	{
0d33db8a	GetBitContext *gb = &v->s.gb;
21aa398f	int pqdiff; //variable size if (v->dquant == 2) {
0d33db8a	pqdiff = get_bits(gb, 3); if (pqdiff == 7) v->altpq = get_bits(gb, 5);
21aa398f	else v->altpq = v->pq + pqdiff + 1; } else {
5fc32c27	v->dquantfrm = get_bits1(gb);
21aa398f	if ( v->dquantfrm ) {
0d33db8a	v->dqprofile = get_bits(gb, 2);
21aa398f	switch (v->dqprofile) { case DQPROFILE_SINGLE_EDGE: case DQPROFILE_DOUBLE_EDGES:
0d33db8a	v->dqsbedge = get_bits(gb, 2);
21aa398f	break; case DQPROFILE_ALL_MBS:
5fc32c27	v->dqbilevel = get_bits1(gb);
f7d2a437	if(!v->dqbilevel) v->halfpq = 0;
21aa398f	default: break; //Forbidden ? }
3a3f1cf3	if (v->dqbilevel \|\| v->dqprofile != DQPROFILE_ALL_MBS)
21aa398f	{
0d33db8a	pqdiff = get_bits(gb, 3); if (pqdiff == 7) v->altpq = get_bits(gb, 5);
21aa398f	else v->altpq = v->pq + pqdiff + 1; } } } return 0; }
be3492ec	/** Put block onto picture
2ce151f8	*/
be3492ec	static void vc1_put_block(VC1Context *v, DCTELEM block[6][64])
21aa398f	{
be3492ec	uint8_t Y; int ys, us, vs; DSPContext dsp = &v->s.dsp;
ffb9a8b1	if(v->rangeredfrm) { int i, j, k; for(k = 0; k < 6; k++) for(j = 0; j < 8; j++) for(i = 0; i < 8; i++) block[k][i + j8] = ((block[k][i + j8] - 128) << 1) + 128; }
be3492ec	ys = v->s.current_picture.linesize[0]; us = v->s.current_picture.linesize[1]; vs = v->s.current_picture.linesize[2]; Y = v->s.dest[0]; dsp->put_pixels_clamped(block[0], Y, ys); dsp->put_pixels_clamped(block[1], Y + 8, ys); Y += ys * 8; dsp->put_pixels_clamped(block[2], Y, ys); dsp->put_pixels_clamped(block[3], Y + 8, ys);
138712fe	if(!(v->s.flags & CODEC_FLAG_GRAY)) { dsp->put_pixels_clamped(block[4], v->s.dest[1], us); dsp->put_pixels_clamped(block[5], v->s.dest[2], vs); }
bf2bc926	}
be3492ec	/** Do motion compensation over 1 macroblock * Mostly adapted hpel_motion and qpel_motion from mpegvideo.c
bf2bc926	*/
5df68893	static void vc1_mc_1mv(VC1Context *v, int dir)
bf2bc926	{
be3492ec	MpegEncContext s = &v->s; DSPContext dsp = &v->s.dsp; uint8_t srcY, srcU, *srcV;
87dfe848	int dxy, uvdxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
be3492ec	if(!v->s.last_picture.data[0])return;
1dc1ce64	mx = s->mv[dir][0][0]; my = s->mv[dir][0][1]; // store motion vectors for further use in B frames
9701840b	if(s->pict_type == FF_P_TYPE) {
1dc1ce64	s->current_picture.motion_val[1][s->block_index[0]][0] = mx; s->current_picture.motion_val[1][s->block_index[0]][1] = my; }
87dfe848	uvmx = (mx + ((mx & 3) == 3)) >> 1; uvmy = (my + ((my & 3) == 3)) >> 1;
08baa3e0	if(v->fastuvmc) { uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1)); uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1)); }
5df68893	if(!dir) { srcY = s->last_picture.data[0]; srcU = s->last_picture.data[1]; srcV = s->last_picture.data[2]; } else { srcY = s->next_picture.data[0]; srcU = s->next_picture.data[1]; srcV = s->next_picture.data[2]; }
be3492ec
87dfe848	src_x = s->mb_x * 16 + (mx >> 2); src_y = s->mb_y * 16 + (my >> 2); uvsrc_x = s->mb_x * 8 + (uvmx >> 2); uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
7c971233	if(v->profile != PROFILE_ADVANCED){ src_x = av_clip( src_x, -16, s->mb_width * 16); src_y = av_clip( src_y, -16, s->mb_height * 16); uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); }else{ src_x = av_clip( src_x, -17, s->avctx->coded_width); src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); }
87dfe848	srcY += src_y * s->linesize + src_x; srcU += uvsrc_y * s->uvlinesize + uvsrc_x; srcV += uvsrc_y * s->uvlinesize + uvsrc_x;
138712fe	/* for grayscale we should not try to read from unknown area / if(s->flags & CODEC_FLAG_GRAY) { srcU = s->edge_emu_buffer + 18 s->linesize; srcV = s->edge_emu_buffer + 18 * s->linesize; }
ffb9a8b1	if(v->rangeredfrm \|\| (v->mv_mode == MV_PMODE_INTENSITY_COMP)
8295eb30	\|\| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 16 - s->mspel3 \|\| (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 16 - s->mspel3){ uint8_t uvbuf= s->edge_emu_buffer + 19 s->linesize;
87dfe848
8295eb30	srcY -= s->mspel * (1 + s->linesize); ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel2, 17+s->mspel2, src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
87dfe848	srcY = s->edge_emu_buffer; ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1, uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1, uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); srcU = uvbuf; srcV = uvbuf + 16;
ffb9a8b1	/* if we deal with range reduction we need to scale source blocks / if(v->rangeredfrm) { int i, j; uint8_t src, *src2; src = srcY;
8295eb30	for(j = 0; j < 17 + s->mspel2; j++) { for(i = 0; i < 17 + s->mspel2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
ffb9a8b1	src += s->linesize; } src = srcU; src2 = srcV; for(j = 0; j < 9; j++) { for(i = 0; i < 9; i++) { src[i] = ((src[i] - 128) >> 1) + 128; src2[i] = ((src2[i] - 128) >> 1) + 128; } src += s->uvlinesize; src2 += s->uvlinesize; } }
66d0ad26	/* if we deal with intensity compensation we need to scale source blocks / if(v->mv_mode == MV_PMODE_INTENSITY_COMP) { int i, j; uint8_t src, *src2; src = srcY;
8295eb30	for(j = 0; j < 17 + s->mspel2; j++) { for(i = 0; i < 17 + s->mspel2; i++) src[i] = v->luty[src[i]];
66d0ad26	src += s->linesize; } src = srcU; src2 = srcV; for(j = 0; j < 9; j++) { for(i = 0; i < 9; i++) { src[i] = v->lutuv[src[i]]; src2[i] = v->lutuv[src2[i]]; } src += s->uvlinesize; src2 += s->uvlinesize; } }
8295eb30	srcY += s->mspel * (1 + s->linesize);
87dfe848	}
8295eb30	if(s->mspel) { dxy = ((my & 3) << 2) \| (mx & 3); dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] , srcY , s->linesize, v->rnd); dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8, srcY + 8, s->linesize, v->rnd); srcY += s->linesize * 8; dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize , srcY , s->linesize, v->rnd); dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + 8 * s->linesize + 8, srcY + 8, s->linesize, v->rnd);
66ff2c1f	} else { // hpel mc - always used for luma dxy = (my & 2) \| ((mx & 2) >> 1);
87dfe848
c5b32ec1	if(!v->rnd) dsp->put_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); else dsp->put_no_rnd_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16); }
138712fe	if(s->flags & CODEC_FLAG_GRAY) return;
2d5eadcc	/* Chroma MC always uses qpel bilinear */
c5b32ec1	uvdxy = ((uvmy & 3) << 2) \| (uvmx & 3);
b0c8e1b8	uvmx = (uvmx&3)<<1; uvmy = (uvmy&3)<<1; if(!v->rnd){ dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); }else{ dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); }
21aa398f	}
e4bf0302	/** Do motion compensation for 4-MV macroblock - luminance block / static void vc1_mc_4mv_luma(VC1Context v, int n) { MpegEncContext s = &v->s; DSPContext dsp = &v->s.dsp; uint8_t srcY; int dxy, mx, my, src_x, src_y; int off; if(!v->s.last_picture.data[0])return; mx = s->mv[0][n][0]; my = s->mv[0][n][1]; srcY = s->last_picture.data[0]; off = s->linesize 4 * (n&2) + (n&1) * 8; src_x = s->mb_x * 16 + (n&1) * 8 + (mx >> 2); src_y = s->mb_y * 16 + (n&2) * 4 + (my >> 2);
7c971233	if(v->profile != PROFILE_ADVANCED){ src_x = av_clip( src_x, -16, s->mb_width * 16); src_y = av_clip( src_y, -16, s->mb_height * 16); }else{ src_x = av_clip( src_x, -17, s->avctx->coded_width); src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); }
e4bf0302	srcY += src_y * s->linesize + src_x;
99f649a2	if(v->rangeredfrm \|\| (v->mv_mode == MV_PMODE_INTENSITY_COMP)
78cbfc0c	\|\| (unsigned)(src_x - s->mspel) > s->h_edge_pos - (mx&3) - 8 - s->mspel2 \|\| (unsigned)(src_y - s->mspel) > s->v_edge_pos - (my&3) - 8 - s->mspel2){
8295eb30	srcY -= s->mspel * (1 + s->linesize); ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 9+s->mspel2, 9+s->mspel2, src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos);
e4bf0302	srcY = s->edge_emu_buffer;
ffb9a8b1	/* if we deal with range reduction we need to scale source blocks / if(v->rangeredfrm) { int i, j; uint8_t src; src = srcY;
8295eb30	for(j = 0; j < 9 + s->mspel2; j++) { for(i = 0; i < 9 + s->mspel2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
ffb9a8b1	src += s->linesize; } }
99f649a2	/* if we deal with intensity compensation we need to scale source blocks / if(v->mv_mode == MV_PMODE_INTENSITY_COMP) { int i, j; uint8_t src; src = srcY; for(j = 0; j < 9 + s->mspel2; j++) { for(i = 0; i < 9 + s->mspel2; i++) src[i] = v->luty[src[i]]; src += s->linesize; } }
8295eb30	srcY += s->mspel * (1 + s->linesize);
e4bf0302	}
8295eb30	if(s->mspel) { dxy = ((my & 3) << 2) \| (mx & 3); dsp->put_vc1_mspel_pixels_tab[dxy](s->dest[0] + off, srcY, s->linesize, v->rnd);
66ff2c1f	} else { // hpel mc - always used for luma dxy = (my & 2) \| ((mx & 2) >> 1);
c5b32ec1	if(!v->rnd) dsp->put_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8); else dsp->put_no_rnd_pixels_tab[1][dxy](s->dest[0] + off, srcY, s->linesize, 8);
e4bf0302	} } static inline int median4(int a, int b, int c, int d) {
35a9cac8	if(a < b) {
913e93d5	if(c < d) return (FFMIN(b, d) + FFMAX(a, c)) / 2; else return (FFMIN(b, c) + FFMAX(a, d)) / 2;
35a9cac8	} else {
913e93d5	if(c < d) return (FFMIN(a, d) + FFMAX(b, c)) / 2; else return (FFMIN(a, c) + FFMAX(b, d)) / 2;
35a9cac8	}
e4bf0302	} /** Do motion compensation for 4-MV macroblock - both chroma blocks / static void vc1_mc_4mv_chroma(VC1Context v) { MpegEncContext s = &v->s; DSPContext dsp = &v->s.dsp; uint8_t srcU, srcV; int uvdxy, uvmx, uvmy, uvsrc_x, uvsrc_y; int i, idx, tx = 0, ty = 0; int mvx[4], mvy[4], intra[4]; static const int count[16] = { 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4}; if(!v->s.last_picture.data[0])return;
138712fe	if(s->flags & CODEC_FLAG_GRAY) return;
e4bf0302	for(i = 0; i < 4; i++) { mvx[i] = s->mv[0][i][0]; mvy[i] = s->mv[0][i][1]; intra[i] = v->mb_type[0][s->block_index[i]]; } /* calculate chroma MV vector from four luma MVs */
1ae4a8e6	idx = (intra[3] << 3) \| (intra[2] << 2) \| (intra[1] << 1) \| intra[0];
e4bf0302	if(!idx) { // all blocks are inter tx = median4(mvx[0], mvx[1], mvx[2], mvx[3]); ty = median4(mvy[0], mvy[1], mvy[2], mvy[3]); } else if(count[idx] == 1) { // 3 inter blocks switch(idx) { case 0x1: tx = mid_pred(mvx[1], mvx[2], mvx[3]);
1ae4a8e6	ty = mid_pred(mvy[1], mvy[2], mvy[3]);
e4bf0302	break; case 0x2: tx = mid_pred(mvx[0], mvx[2], mvx[3]);
1ae4a8e6	ty = mid_pred(mvy[0], mvy[2], mvy[3]);
e4bf0302	break; case 0x4: tx = mid_pred(mvx[0], mvx[1], mvx[3]);
1ae4a8e6	ty = mid_pred(mvy[0], mvy[1], mvy[3]);
e4bf0302	break; case 0x8: tx = mid_pred(mvx[0], mvx[1], mvx[2]);
1ae4a8e6	ty = mid_pred(mvy[0], mvy[1], mvy[2]);
e4bf0302	break; } } else if(count[idx] == 2) { int t1 = 0, t2 = 0; for(i=0; i<3;i++) if(!intra[i]) {t1 = i; break;} for(i= t1+1; i<4; i++)if(!intra[i]) {t2 = i; break;}
913e93d5	tx = (mvx[t1] + mvx[t2]) / 2; ty = (mvy[t1] + mvy[t2]) / 2;
9a44385e	} else { s->current_picture.motion_val[1][s->block_index[0]][0] = 0; s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
e4bf0302	return; //no need to do MC for inter blocks
9a44385e	}
e4bf0302
1dc1ce64	s->current_picture.motion_val[1][s->block_index[0]][0] = tx; s->current_picture.motion_val[1][s->block_index[0]][1] = ty;
e4bf0302	uvmx = (tx + ((tx&3) == 3)) >> 1; uvmy = (ty + ((ty&3) == 3)) >> 1;
08baa3e0	if(v->fastuvmc) { uvmx = uvmx + ((uvmx<0)?(uvmx&1):-(uvmx&1)); uvmy = uvmy + ((uvmy<0)?(uvmy&1):-(uvmy&1)); }
e4bf0302	uvsrc_x = s->mb_x * 8 + (uvmx >> 2); uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
7c971233	if(v->profile != PROFILE_ADVANCED){ uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); }else{ uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); }
ab475795
e4bf0302	srcU = s->last_picture.data[1] + uvsrc_y * s->uvlinesize + uvsrc_x; srcV = s->last_picture.data[2] + uvsrc_y * s->uvlinesize + uvsrc_x;
99f649a2	if(v->rangeredfrm \|\| (v->mv_mode == MV_PMODE_INTENSITY_COMP) \|\| (unsigned)uvsrc_x > (s->h_edge_pos >> 1) - 9
83b3df83	\|\| (unsigned)uvsrc_y > (s->v_edge_pos >> 1) - 9){
e4bf0302	ff_emulated_edge_mc(s->edge_emu_buffer , srcU, s->uvlinesize, 8+1, 8+1, uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); ff_emulated_edge_mc(s->edge_emu_buffer + 16, srcV, s->uvlinesize, 8+1, 8+1, uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); srcU = s->edge_emu_buffer; srcV = s->edge_emu_buffer + 16;
ffb9a8b1	/* if we deal with range reduction we need to scale source blocks / if(v->rangeredfrm) { int i, j; uint8_t src, *src2; src = srcU; src2 = srcV; for(j = 0; j < 9; j++) { for(i = 0; i < 9; i++) { src[i] = ((src[i] - 128) >> 1) + 128; src2[i] = ((src2[i] - 128) >> 1) + 128; } src += s->uvlinesize; src2 += s->uvlinesize; } }
99f649a2	/* if we deal with intensity compensation we need to scale source blocks / if(v->mv_mode == MV_PMODE_INTENSITY_COMP) { int i, j; uint8_t src, *src2; src = srcU; src2 = srcV; for(j = 0; j < 9; j++) { for(i = 0; i < 9; i++) { src[i] = v->lutuv[src[i]]; src2[i] = v->lutuv[src2[i]]; } src += s->uvlinesize; src2 += s->uvlinesize; } }
e4bf0302	}
2d5eadcc	/* Chroma MC always uses qpel bilinear */
c5b32ec1	uvdxy = ((uvmy & 3) << 2) \| (uvmx & 3);
b0c8e1b8	uvmx = (uvmx&3)<<1; uvmy = (uvmy&3)<<1; if(!v->rnd){ dsp->put_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); dsp->put_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); }else{ dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); dsp->put_no_rnd_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy); }
e4bf0302	}
3c275f6d	static int decode_sequence_header_adv(VC1Context v, GetBitContext gb);
be3492ec	/** * Decode Simple/Main Profiles sequence header * @see Figure 7-8, p16-17 * @param avctx Codec context * @param gb GetBit context initialized from Codec context extra_data
2ce151f8	* @return Status */
be3492ec	static int decode_sequence_header(AVCodecContext avctx, GetBitContext gb)
21aa398f	{
be3492ec	VC1Context *v = avctx->priv_data;
21aa398f
d429c982	av_log(avctx, AV_LOG_DEBUG, "Header: %0X\n", show_bits(gb, 32));
be3492ec	v->profile = get_bits(gb, 2);
9d1f80f2	if (v->profile == PROFILE_COMPLEX)
21aa398f	{
9d1f80f2	av_log(avctx, AV_LOG_ERROR, "WMV3 Complex Profile is not fully supported\n");
21aa398f	}
be3492ec
7cc84d24	if (v->profile == PROFILE_ADVANCED)
21aa398f	{
750e37eb	v->zz_8x4 = ff_vc1_adv_progressive_8x4_zz; v->zz_4x8 = ff_vc1_adv_progressive_4x8_zz;
3c275f6d	return decode_sequence_header_adv(v, gb);
21aa398f	} else {
5a893969	v->zz_8x4 = wmv2_scantableA; v->zz_4x8 = wmv2_scantableB;
be3492ec	v->res_sm = get_bits(gb, 2); //reserved if (v->res_sm) { av_log(avctx, AV_LOG_ERROR, "Reserved RES_SM=%i is forbidden\n", v->res_sm); return -1; }
21aa398f	}
be3492ec	// (fps-2)/4 (->30) v->frmrtq_postproc = get_bits(gb, 3); //common // (bitrate-32kbps)/64kbps v->bitrtq_postproc = get_bits(gb, 5); //common
5fc32c27	v->s.loop_filter = get_bits1(gb); //common
be3492ec	if(v->s.loop_filter == 1 && v->profile == PROFILE_SIMPLE)
21aa398f	{
be3492ec	av_log(avctx, AV_LOG_ERROR, "LOOPFILTER shell not be enabled in simple profile\n");
21aa398f	}
77298e99	if(v->s.avctx->skip_loop_filter >= AVDISCARD_ALL) v->s.loop_filter = 0;
21aa398f
5fc32c27	v->res_x8 = get_bits1(gb); //reserved v->multires = get_bits1(gb); v->res_fasttx = get_bits1(gb);
6cf6d0ec	if (!v->res_fasttx) {
59e6f60a	v->s.dsp.vc1_inv_trans_8x8 = ff_simple_idct; v->s.dsp.vc1_inv_trans_8x4 = ff_simple_idct84_add; v->s.dsp.vc1_inv_trans_4x8 = ff_simple_idct48_add;
3a18218e	v->s.dsp.vc1_inv_trans_4x4 = ff_simple_idct44_add;
21aa398f	}
5fc32c27	v->fastuvmc = get_bits1(gb); //common
be3492ec	if (!v->profile && !v->fastuvmc)
21aa398f	{
be3492ec	av_log(avctx, AV_LOG_ERROR, "FASTUVMC unavailable in Simple Profile\n"); return -1;
21aa398f	}
5fc32c27	v->extended_mv = get_bits1(gb); //common
be3492ec	if (!v->profile && v->extended_mv) { av_log(avctx, AV_LOG_ERROR, "Extended MVs unavailable in Simple Profile\n"); return -1; } v->dquant = get_bits(gb, 2); //common
5fc32c27	v->vstransform = get_bits1(gb); //common
21aa398f
5fc32c27	v->res_transtab = get_bits1(gb);
6cf6d0ec	if (v->res_transtab)
21aa398f	{
6cf6d0ec	av_log(avctx, AV_LOG_ERROR, "1 for reserved RES_TRANSTAB is forbidden\n"); return -1;
21aa398f	}
0d33db8a
5fc32c27	v->overlap = get_bits1(gb); //common
0d33db8a
5fc32c27	v->s.resync_marker = get_bits1(gb); v->rangered = get_bits1(gb);
6cf6d0ec	if (v->rangered && v->profile == PROFILE_SIMPLE)
0d33db8a	{
6cf6d0ec	av_log(avctx, AV_LOG_INFO, "RANGERED should be set to 0 in simple profile\n");
0d33db8a	}
21aa398f
be3492ec	v->s.max_b_frames = avctx->max_b_frames = get_bits(gb, 3); //common v->quantizer_mode = get_bits(gb, 2); //common
5fc32c27	v->finterpflag = get_bits1(gb); //common v->res_rtm_flag = get_bits1(gb); //reserved
6cf6d0ec	if (!v->res_rtm_flag)
21aa398f	{
48d3fca7	// av_log(avctx, AV_LOG_ERROR, // "0 for reserved RES_RTM_FLAG is forbidden\n");
6cf6d0ec	av_log(avctx, AV_LOG_ERROR, "Old WMV3 version detected, only I-frames will be decoded\n"); //return -1; }
351f6b4e	//TODO: figure out what they mean (always 0x402F) if(!v->res_fasttx) skip_bits(gb, 16);
6cf6d0ec	av_log(avctx, AV_LOG_DEBUG,
be3492ec	"Profile %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n"
e148c6e1	"LoopFilter=%i, MultiRes=%i, FastUVMC=%i, Extended MV=%i\n"
be3492ec	"Rangered=%i, VSTransform=%i, Overlap=%i, SyncMarker=%i\n" "DQuant=%i, Quantizer mode=%i, Max B frames=%i\n", v->profile, v->frmrtq_postproc, v->bitrtq_postproc, v->s.loop_filter, v->multires, v->fastuvmc, v->extended_mv, v->rangered, v->vstransform, v->overlap, v->s.resync_marker, v->dquant, v->quantizer_mode, avctx->max_b_frames );
6cf6d0ec	return 0;
21aa398f	}
3c275f6d	static int decode_sequence_header_adv(VC1Context v, GetBitContext gb) { v->res_rtm_flag = 1; v->level = get_bits(gb, 3); if(v->level >= 5) { av_log(v->s.avctx, AV_LOG_ERROR, "Reserved LEVEL %i\n",v->level); } v->chromaformat = get_bits(gb, 2); if (v->chromaformat != 1) { av_log(v->s.avctx, AV_LOG_ERROR, "Only 4:2:0 chroma format supported\n"); return -1; } // (fps-2)/4 (->30) v->frmrtq_postproc = get_bits(gb, 3); //common // (bitrate-32kbps)/64kbps v->bitrtq_postproc = get_bits(gb, 5); //common
5fc32c27	v->postprocflag = get_bits1(gb); //common
3c275f6d	v->s.avctx->coded_width = (get_bits(gb, 12) + 1) << 1; v->s.avctx->coded_height = (get_bits(gb, 12) + 1) << 1;
4305a4ef	v->s.avctx->width = v->s.avctx->coded_width; v->s.avctx->height = v->s.avctx->coded_height;
3c275f6d	v->broadcast = get_bits1(gb); v->interlace = get_bits1(gb); v->tfcntrflag = get_bits1(gb); v->finterpflag = get_bits1(gb);
3a5729ea	skip_bits1(gb); // reserved
8ea780d7
ab475795	v->s.h_edge_pos = v->s.avctx->coded_width; v->s.v_edge_pos = v->s.avctx->coded_height;
8ea780d7	av_log(v->s.avctx, AV_LOG_DEBUG, "Advanced Profile level %i:\nfrmrtq_postproc=%i, bitrtq_postproc=%i\n" "LoopFilter=%i, ChromaFormat=%i, Pulldown=%i, Interlace: %i\n" "TFCTRflag=%i, FINTERPflag=%i\n", v->level, v->frmrtq_postproc, v->bitrtq_postproc, v->s.loop_filter, v->chromaformat, v->broadcast, v->interlace, v->tfcntrflag, v->finterpflag );
3c275f6d	v->psf = get_bits1(gb); if(v->psf) { //PsF, 6.1.13 av_log(v->s.avctx, AV_LOG_ERROR, "Progressive Segmented Frame mode: not supported (yet)\n"); return -1; }
6eda6e37	v->s.max_b_frames = v->s.avctx->max_b_frames = 7;
3c275f6d	if(get_bits1(gb)) { //Display Info - decoding is not affected by it int w, h, ar = 0;
f0a85d5f	av_log(v->s.avctx, AV_LOG_DEBUG, "Display extended info:\n");
7a96cd31	v->s.avctx->coded_width = w = get_bits(gb, 14) + 1; v->s.avctx->coded_height = h = get_bits(gb, 14) + 1;
f0a85d5f	av_log(v->s.avctx, AV_LOG_DEBUG, "Display dimensions: %ix%i\n", w, h);
3c275f6d	if(get_bits1(gb)) ar = get_bits(gb, 4);
74fd63d0	if(ar && ar < 14){
a5c14fca	v->s.avctx->sample_aspect_ratio = ff_vc1_pixel_aspect[ar];
74fd63d0	}else if(ar == 15){
3c275f6d	w = get_bits(gb, 8); h = get_bits(gb, 8);
74fd63d0	v->s.avctx->sample_aspect_ratio = (AVRational){w, h};
3c275f6d	}
e9ca5f08	av_log(v->s.avctx, AV_LOG_DEBUG, "Aspect: %i:%i\n", v->s.avctx->sample_aspect_ratio.num, v->s.avctx->sample_aspect_ratio.den);
3c275f6d	if(get_bits1(gb)){ //framerate stuff if(get_bits1(gb)) {
f0c31621	v->s.avctx->time_base.num = 32; v->s.avctx->time_base.den = get_bits(gb, 16) + 1;
3c275f6d	} else {
f0c31621	int nr, dr; nr = get_bits(gb, 8); dr = get_bits(gb, 4); if(nr && nr < 8 && dr && dr < 3){
a5c14fca	v->s.avctx->time_base.num = ff_vc1_fps_dr[dr - 1]; v->s.avctx->time_base.den = ff_vc1_fps_nr[nr - 1] * 1000;
f0c31621	}
3c275f6d	} } if(get_bits1(gb)){ v->color_prim = get_bits(gb, 8); v->transfer_char = get_bits(gb, 8); v->matrix_coef = get_bits(gb, 8); } } v->hrd_param_flag = get_bits1(gb); if(v->hrd_param_flag) { int i; v->hrd_num_leaky_buckets = get_bits(gb, 5);
3a5729ea	skip_bits(gb, 4); //bitrate exponent skip_bits(gb, 4); //buffer size exponent
3c275f6d	for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
3a5729ea	skip_bits(gb, 16); //hrd_rate[n] skip_bits(gb, 16); //hrd_buffer[n]
3c275f6d	} } return 0; } static int decode_entry_point(AVCodecContext avctx, GetBitContext gb) { VC1Context *v = avctx->priv_data;
f92a6c66	int i;
3c275f6d	av_log(avctx, AV_LOG_DEBUG, "Entry point: %08X\n", show_bits_long(gb, 32));
f92a6c66	v->broken_link = get_bits1(gb); v->closed_entry = get_bits1(gb);
3c275f6d	v->panscanflag = get_bits1(gb);
49186206	v->refdist_flag = get_bits1(gb);
3c275f6d	v->s.loop_filter = get_bits1(gb); v->fastuvmc = get_bits1(gb); v->extended_mv = get_bits1(gb); v->dquant = get_bits(gb, 2); v->vstransform = get_bits1(gb); v->overlap = get_bits1(gb); v->quantizer_mode = get_bits(gb, 2); if(v->hrd_param_flag){ for(i = 0; i < v->hrd_num_leaky_buckets; i++) {
3a5729ea	skip_bits(gb, 8); //hrd_full[n]
3c275f6d	} } if(get_bits1(gb)){ avctx->coded_width = (get_bits(gb, 12)+1)<<1; avctx->coded_height = (get_bits(gb, 12)+1)<<1; } if(v->extended_mv) v->extended_dmv = get_bits1(gb);
63bfcb69	if((v->range_mapy_flag = get_bits1(gb))) {
3c275f6d	av_log(avctx, AV_LOG_ERROR, "Luma scaling is not supported, expect wrong picture\n");
63bfcb69	v->range_mapy = get_bits(gb, 3);
3c275f6d	}
63bfcb69	if((v->range_mapuv_flag = get_bits1(gb))) {
3c275f6d	av_log(avctx, AV_LOG_ERROR, "Chroma scaling is not supported, expect wrong picture\n");
63bfcb69	v->range_mapuv = get_bits(gb, 3);
3c275f6d	}
8ea780d7	av_log(avctx, AV_LOG_DEBUG, "Entry point info:\n" "BrokenLink=%i, ClosedEntry=%i, PanscanFlag=%i\n" "RefDist=%i, Postproc=%i, FastUVMC=%i, ExtMV=%i\n" "DQuant=%i, VSTransform=%i, Overlap=%i, Qmode=%i\n",
f92a6c66	v->broken_link, v->closed_entry, v->panscanflag, v->refdist_flag, v->s.loop_filter,
8ea780d7	v->fastuvmc, v->extended_mv, v->dquant, v->vstransform, v->overlap, v->quantizer_mode);
3c275f6d	return 0; }
be3492ec	static int vc1_parse_frame_header(VC1Context v, GetBitContext gb)
21aa398f	{
be3492ec	int pqindex, lowquant, status;
21aa398f
5fc32c27	if(v->finterpflag) v->interpfrm = get_bits1(gb);
be3492ec	skip_bits(gb, 2); //framecnt unused v->rangeredfrm = 0;
5fc32c27	if (v->rangered) v->rangeredfrm = get_bits1(gb); v->s.pict_type = get_bits1(gb);
be3492ec	if (v->s.avctx->max_b_frames) { if (!v->s.pict_type) {
9701840b	if (get_bits1(gb)) v->s.pict_type = FF_I_TYPE; else v->s.pict_type = FF_B_TYPE; } else v->s.pict_type = FF_P_TYPE; } else v->s.pict_type = v->s.pict_type ? FF_P_TYPE : FF_I_TYPE;
21aa398f
1dc1ce64	v->bi_type = 0;
9701840b	if(v->s.pict_type == FF_B_TYPE) {
f92a6c66	v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1); v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
1dc1ce64	if(v->bfraction == 0) {
9701840b	v->s.pict_type = FF_BI_TYPE;
5df68893	} }
9701840b	if(v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_BI_TYPE)
3a5729ea	skip_bits(gb, 7); // skip buffer fullness
21aa398f
c5b32ec1	/* calculate RND */
9701840b	if(v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_BI_TYPE)
c5b32ec1	v->rnd = 1;
9701840b	if(v->s.pict_type == FF_P_TYPE)
c5b32ec1	v->rnd ^= 1;
be3492ec	/* Quantizer stuff */ pqindex = get_bits(gb, 5);
95e3fdb8	if(!pqindex) return -1;
be3492ec	if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
a5c14fca	v->pq = ff_vc1_pquant_table[0][pqindex];
be3492ec	else
a5c14fca	v->pq = ff_vc1_pquant_table[1][pqindex];
be3492ec
0a45801f	v->pquantizer = 1;
be3492ec	if (v->quantizer_mode == QUANT_FRAME_IMPLICIT) v->pquantizer = pqindex < 9;
0a45801f	if (v->quantizer_mode == QUANT_NON_UNIFORM) v->pquantizer = 0;
be3492ec	v->pqindex = pqindex;
5fc32c27	if (pqindex < 9) v->halfpq = get_bits1(gb);
be3492ec	else v->halfpq = 0; if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
5fc32c27	v->pquantizer = get_bits1(gb);
be3492ec	v->dquantfrm = 0;
3c2ddb59	if (v->extended_mv == 1) v->mvrange = get_unary(gb, 0, 3);
5c4b8efd	v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11 v->range_x = 1 << (v->k_x - 1); v->range_y = 1 << (v->k_y - 1);
1cae2ef9	if (v->multires && v->s.pict_type != FF_B_TYPE) v->respic = get_bits(gb, 2);
be3492ec
9701840b	if(v->res_x8 && (v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_BI_TYPE)){
9abc7e0f	v->x8_type = get_bits1(gb); }else v->x8_type = 0;
be3492ec	//av_log(v->s.avctx, AV_LOG_INFO, "%c Frame: QP=[%i]%i (+%i/2) %i\n",
9701840b	// (v->s.pict_type == FF_P_TYPE) ? 'P' : ((v->s.pict_type == FF_I_TYPE) ? 'I' : 'B'), pqindex, v->pq, v->halfpq, v->rangeredfrm);
be3492ec
9701840b	if(v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_P_TYPE) v->use_ic = 0;
6b33eed8
be3492ec	switch(v->s.pict_type) {
9701840b	case FF_P_TYPE:
be3492ec	if (v->pq < 5) v->tt_index = 0; else if(v->pq < 13) v->tt_index = 1; else v->tt_index = 2; lowquant = (v->pq > 12) ? 0 : 1;
3c2ddb59	v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
be3492ec	if (v->mv_mode == MV_PMODE_INTENSITY_COMP)
21aa398f	{
66d0ad26	int scale, shift, i;
3c2ddb59	v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
be3492ec	v->lumscale = get_bits(gb, 6); v->lumshift = get_bits(gb, 6);
6b33eed8	v->use_ic = 1;
66d0ad26	/* fill lookup tables for intensity compensation / if(!v->lumscale) { scale = -64; shift = (255 - v->lumshift 2) << 6; if(v->lumshift > 31) shift += 128 << 6; } else { scale = v->lumscale + 32; if(v->lumshift > 31) shift = (v->lumshift - 64) << 6; else shift = v->lumshift << 6; } for(i = 0; i < 256; i++) {
f66e4f5f	v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
66d0ad26	}
21aa398f	}
be3492ec	if(v->mv_mode == MV_PMODE_1MV_HPEL \|\| v->mv_mode == MV_PMODE_1MV_HPEL_BILIN)
87dfe848	v->s.quarter_sample = 0;
05103ed3	else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) { if(v->mv_mode2 == MV_PMODE_1MV_HPEL \|\| v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN) v->s.quarter_sample = 0; else v->s.quarter_sample = 1; } else
87dfe848	v->s.quarter_sample = 1;
09be55df	v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN \|\| (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN));
21aa398f
be3492ec	if ((v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_MIXED_MV) \|\| v->mv_mode == MV_PMODE_MIXED_MV)
21aa398f	{
87dfe848	status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v);
be3492ec	if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1);
87dfe848	} else { v->mv_type_is_raw = 0; memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height);
21aa398f	}
0f7344aa	status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v);
be3492ec	if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1);
21aa398f
be3492ec	/* Hopefully this is correct for P frames */
a5c14fca	v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
0d33db8a
be3492ec	if (v->dquant) { av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n"); vop_dquant_decoding(v); }
0d33db8a
be3492ec	v->ttfrm = 0; //FIXME Is that so ? if (v->vstransform) {
5fc32c27	v->ttmbf = get_bits1(gb);
be3492ec	if (v->ttmbf) {
a5c14fca	v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
be3492ec	}
b53921aa	} else { v->ttmbf = 1; v->ttfrm = TT_8X8;
be3492ec	} break;
9701840b	case FF_B_TYPE:
5df68893	if (v->pq < 5) v->tt_index = 0; else if(v->pq < 13) v->tt_index = 1; else v->tt_index = 2; lowquant = (v->pq > 12) ? 0 : 1; v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN; v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV);
09be55df	v->s.mspel = v->s.quarter_sample;
5df68893	status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); v->s.mv_table_index = get_bits(gb, 2);
a5c14fca	v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
5df68893	if (v->dquant) { av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n"); vop_dquant_decoding(v); } v->ttfrm = 0; if (v->vstransform) {
5fc32c27	v->ttmbf = get_bits1(gb);
5df68893	if (v->ttmbf) {
a5c14fca	v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
5df68893	} } else { v->ttmbf = 1; v->ttfrm = TT_8X8; }
be3492ec	break;
21aa398f	}
8590bcc3	if(!v->x8_type)
21aa398f	{
8590bcc3	/* AC Syntax */ v->c_ac_table_index = decode012(gb);
9701840b	if (v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_BI_TYPE)
8590bcc3	{ v->y_ac_table_index = decode012(gb); } /* DC Syntax */ v->s.dc_table_index = get_bits1(gb);
21aa398f	}
9701840b	if(v->s.pict_type == FF_BI_TYPE) { v->s.pict_type = FF_B_TYPE;
1dc1ce64	v->bi_type = 1; }
21aa398f	return 0; }
2ce151f8
3c275f6d	static int vc1_parse_frame_header_adv(VC1Context v, GetBitContext gb) { int pqindex, lowquant; int status; v->p_frame_skipped = 0;
ac91185f	if(v->interlace){
93731ff2	v->fcm = decode012(gb);
ac91185f	if(v->fcm) return -1; // interlaced frames/fields are not implemented }
3c2ddb59	switch(get_unary(gb, 0, 4)) {
3c275f6d	case 0:
9701840b	v->s.pict_type = FF_P_TYPE;
3c275f6d	break; case 1:
9701840b	v->s.pict_type = FF_B_TYPE;
5081f3aa	break;
3c275f6d	case 2:
9701840b	v->s.pict_type = FF_I_TYPE;
3c275f6d	break; case 3:
9701840b	v->s.pict_type = FF_BI_TYPE;
76751653	break;
3c275f6d	case 4:
9701840b	v->s.pict_type = FF_P_TYPE; // skipped pic
3c275f6d	v->p_frame_skipped = 1; return 0; } if(v->tfcntrflag)
3a5729ea	skip_bits(gb, 8);
3c275f6d	if(v->broadcast) {
02c823d4	if(!v->interlace \|\| v->psf) {
93731ff2	v->rptfrm = get_bits(gb, 2);
3c275f6d	} else {
93731ff2	v->tff = get_bits1(gb); v->rptfrm = get_bits1(gb);
3c275f6d	} } if(v->panscanflag) { //... } v->rnd = get_bits1(gb); if(v->interlace) v->uvsamp = get_bits1(gb);
5fc32c27	if(v->finterpflag) v->interpfrm = get_bits1(gb);
9701840b	if(v->s.pict_type == FF_B_TYPE) {
f92a6c66	v->bfraction_lut_index = get_vlc2(gb, ff_vc1_bfraction_vlc.table, VC1_BFRACTION_VLC_BITS, 1); v->bfraction = ff_vc1_bfraction_lut[v->bfraction_lut_index];
5081f3aa	if(v->bfraction == 0) {
9701840b	v->s.pict_type = FF_BI_TYPE; /* XXX: should not happen here */
5081f3aa	} }
3c275f6d	pqindex = get_bits(gb, 5);
95e3fdb8	if(!pqindex) return -1;
3c275f6d	v->pqindex = pqindex; if (v->quantizer_mode == QUANT_FRAME_IMPLICIT)
a5c14fca	v->pq = ff_vc1_pquant_table[0][pqindex];
3c275f6d	else
a5c14fca	v->pq = ff_vc1_pquant_table[1][pqindex];
3c275f6d	v->pquantizer = 1; if (v->quantizer_mode == QUANT_FRAME_IMPLICIT) v->pquantizer = pqindex < 9; if (v->quantizer_mode == QUANT_NON_UNIFORM) v->pquantizer = 0; v->pqindex = pqindex;
5fc32c27	if (pqindex < 9) v->halfpq = get_bits1(gb);
3c275f6d	else v->halfpq = 0; if (v->quantizer_mode == QUANT_FRAME_EXPLICIT)
5fc32c27	v->pquantizer = get_bits1(gb);
55374d57	if(v->postprocflag)
a28d5224	v->postproc = get_bits(gb, 2);
3c275f6d
9701840b	if(v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_P_TYPE) v->use_ic = 0;
674678b0
3c275f6d	switch(v->s.pict_type) {
9701840b	case FF_I_TYPE: case FF_BI_TYPE:
3c275f6d	status = bitplane_decoding(v->acpred_plane, &v->acpred_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "ACPRED plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); v->condover = CONDOVER_NONE; if(v->overlap && v->pq <= 8) { v->condover = decode012(gb); if(v->condover == CONDOVER_SELECT) { status = bitplane_decoding(v->over_flags_plane, &v->overflg_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "CONDOVER plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); } } break;
9701840b	case FF_P_TYPE:
3c2ddb59	if (v->extended_mv) v->mvrange = get_unary(gb, 0, 3);
3c275f6d	else v->mvrange = 0; v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11 v->range_x = 1 << (v->k_x - 1); v->range_y = 1 << (v->k_y - 1); if (v->pq < 5) v->tt_index = 0; else if(v->pq < 13) v->tt_index = 1; else v->tt_index = 2; lowquant = (v->pq > 12) ? 0 : 1;
3c2ddb59	v->mv_mode = ff_vc1_mv_pmode_table[lowquant][get_unary(gb, 1, 4)];
3c275f6d	if (v->mv_mode == MV_PMODE_INTENSITY_COMP) { int scale, shift, i;
3c2ddb59	v->mv_mode2 = ff_vc1_mv_pmode_table2[lowquant][get_unary(gb, 1, 3)];
3c275f6d	v->lumscale = get_bits(gb, 6); v->lumshift = get_bits(gb, 6); /* fill lookup tables for intensity compensation / if(!v->lumscale) { scale = -64; shift = (255 - v->lumshift 2) << 6; if(v->lumshift > 31) shift += 128 << 6; } else { scale = v->lumscale + 32; if(v->lumshift > 31) shift = (v->lumshift - 64) << 6; else shift = v->lumshift << 6; } for(i = 0; i < 256; i++) {
f66e4f5f	v->luty[i] = av_clip_uint8((scale * i + shift + 32) >> 6); v->lutuv[i] = av_clip_uint8((scale * (i - 128) + 128*64 + 32) >> 6);
3c275f6d	}
674678b0	v->use_ic = 1;
3c275f6d	} if(v->mv_mode == MV_PMODE_1MV_HPEL \|\| v->mv_mode == MV_PMODE_1MV_HPEL_BILIN) v->s.quarter_sample = 0; else if(v->mv_mode == MV_PMODE_INTENSITY_COMP) { if(v->mv_mode2 == MV_PMODE_1MV_HPEL \|\| v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN) v->s.quarter_sample = 0; else v->s.quarter_sample = 1; } else v->s.quarter_sample = 1; v->s.mspel = !(v->mv_mode == MV_PMODE_1MV_HPEL_BILIN \|\| (v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_1MV_HPEL_BILIN)); if ((v->mv_mode == MV_PMODE_INTENSITY_COMP && v->mv_mode2 == MV_PMODE_MIXED_MV) \|\| v->mv_mode == MV_PMODE_MIXED_MV) { status = bitplane_decoding(v->mv_type_mb_plane, &v->mv_type_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB MV Type plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); } else { v->mv_type_is_raw = 0; memset(v->mv_type_mb_plane, 0, v->s.mb_stride * v->s.mb_height); } status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); /* Hopefully this is correct for P frames */
a5c14fca	v->s.mv_table_index = get_bits(gb, 2); //but using ff_vc1_ tables v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
3c275f6d	if (v->dquant) { av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n"); vop_dquant_decoding(v); } v->ttfrm = 0; //FIXME Is that so ? if (v->vstransform) {
5fc32c27	v->ttmbf = get_bits1(gb);
3c275f6d	if (v->ttmbf) {
a5c14fca	v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
3c275f6d	} } else { v->ttmbf = 1; v->ttfrm = TT_8X8; } break;
9701840b	case FF_B_TYPE:
3c2ddb59	if (v->extended_mv) v->mvrange = get_unary(gb, 0, 3);
5081f3aa	else v->mvrange = 0; v->k_x = v->mvrange + 9 + (v->mvrange >> 1); //k_x can be 9 10 12 13 v->k_y = v->mvrange + 8; //k_y can be 8 9 10 11 v->range_x = 1 << (v->k_x - 1); v->range_y = 1 << (v->k_y - 1); if (v->pq < 5) v->tt_index = 0; else if(v->pq < 13) v->tt_index = 1; else v->tt_index = 2; lowquant = (v->pq > 12) ? 0 : 1; v->mv_mode = get_bits1(gb) ? MV_PMODE_1MV : MV_PMODE_1MV_HPEL_BILIN; v->s.quarter_sample = (v->mv_mode == MV_PMODE_1MV); v->s.mspel = v->s.quarter_sample; status = bitplane_decoding(v->direct_mb_plane, &v->dmb_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB Direct Type plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); status = bitplane_decoding(v->s.mbskip_table, &v->skip_is_raw, v); if (status < 0) return -1; av_log(v->s.avctx, AV_LOG_DEBUG, "MB Skip plane encoding: " "Imode: %i, Invert: %i\n", status>>1, status&1); v->s.mv_table_index = get_bits(gb, 2);
a5c14fca	v->cbpcy_vlc = &ff_vc1_cbpcy_p_vlc[get_bits(gb, 2)];
5081f3aa	if (v->dquant) { av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n"); vop_dquant_decoding(v); } v->ttfrm = 0; if (v->vstransform) {
5fc32c27	v->ttmbf = get_bits1(gb);
5081f3aa	if (v->ttmbf) {
a5c14fca	v->ttfrm = ff_vc1_ttfrm_to_tt[get_bits(gb, 2)];
5081f3aa	} } else { v->ttmbf = 1; v->ttfrm = TT_8X8; } break;
3c275f6d	} /* AC Syntax */ v->c_ac_table_index = decode012(gb);
9701840b	if (v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_BI_TYPE)
3c275f6d	{ v->y_ac_table_index = decode012(gb); } /* DC Syntax */
5fc32c27	v->s.dc_table_index = get_bits1(gb);
9701840b	if ((v->s.pict_type == FF_I_TYPE \|\| v->s.pict_type == FF_BI_TYPE) && v->dquant) {
3c275f6d	av_log(v->s.avctx, AV_LOG_DEBUG, "VOP DQuant info\n"); vop_dquant_decoding(v); }
76751653	v->bi_type = 0;
9701840b	if(v->s.pict_type == FF_BI_TYPE) { v->s.pict_type = FF_B_TYPE;
76751653	v->bi_type = 1; }
3c275f6d	return 0; }
2ce151f8	/***********************************************************************/
115329f1	/**
81169111	* @defgroup vc1block VC-1 Block-level functions
2ce151f8	* @see 7.1.4, p91 and 8.1.1.7, p(1)04 * @{ */
7cc84d24	/** * @def GET_MQUANT * @brief Get macroblock-level quantizer scale
2ce151f8	*/
7cc84d24	#define GET_MQUANT() \ if (v->dquantfrm) \ { \
35a9cac8	int edges = 0; \
7cc84d24	if (v->dqprofile == DQPROFILE_ALL_MBS) \ { \ if (v->dqbilevel) \ { \
5fc32c27	mquant = (get_bits1(gb)) ? v->altpq : v->pq; \
7cc84d24	} \ else \ { \ mqdiff = get_bits(gb, 3); \ if (mqdiff != 7) mquant = v->pq + mqdiff; \ else mquant = get_bits(gb, 5); \ } \ } \
35a9cac8	if(v->dqprofile == DQPROFILE_SINGLE_EDGE) \ edges = 1 << v->dqsbedge; \
e4bf0302	else if(v->dqprofile == DQPROFILE_DOUBLE_EDGES) \
35a9cac8	edges = (3 << v->dqsbedge) % 15; \
e4bf0302	else if(v->dqprofile == DQPROFILE_FOUR_EDGES) \
35a9cac8	edges = 15; \ if((edges&1) && !s->mb_x) \ mquant = v->altpq; \
3a3f1cf3	if((edges&2) && s->first_slice_line) \
35a9cac8	mquant = v->altpq; \ if((edges&4) && s->mb_x == (s->mb_width - 1)) \ mquant = v->altpq; \ if((edges&8) && s->mb_y == (s->mb_height - 1)) \ mquant = v->altpq; \
7cc84d24	} /** * @def GET_MVDATA(_dmv_x, _dmv_y) * @brief Get MV differentials * @see MVDATA decoding from 8.3.5.2, p(1)20
8da75fb2	* @param _dmv_x Horizontal differential for decoded MV * @param _dmv_y Vertical differential for decoded MV
7cc84d24	*/ #define GET_MVDATA(_dmv_x, _dmv_y) \
a5c14fca	index = 1 + get_vlc2(gb, ff_vc1_mv_diff_vlc[s->mv_table_index].table,\
10b9c374	VC1_MV_DIFF_VLC_BITS, 2); \
7cc84d24	if (index > 36) \ { \ mb_has_coeffs = 1; \ index -= 37; \ } \ else mb_has_coeffs = 0; \ s->mb_intra = 0; \ if (!index) { _dmv_x = _dmv_y = 0; } \ else if (index == 35) \ { \
87dfe848	_dmv_x = get_bits(gb, v->k_x - 1 + s->quarter_sample); \ _dmv_y = get_bits(gb, v->k_y - 1 + s->quarter_sample); \
be3492ec	} \ else if (index == 36) \ { \ _dmv_x = 0; \ _dmv_y = 0; \
7cc84d24	s->mb_intra = 1; \ } \ else \ { \ index1 = index%6; \
87dfe848	if (!s->quarter_sample && index1 == 5) val = 1; \ else val = 0; \
e8ba1cea	if(size_table[index1] - val > 0) \ val = get_bits(gb, size_table[index1] - val); \ else val = 0; \
7cc84d24	sign = 0 - (val&1); \ _dmv_x = (sign ^ ((val>>1) + offset_table[index1])) - sign; \ \ index1 = index/6; \
87dfe848	if (!s->quarter_sample && index1 == 5) val = 1; \ else val = 0; \
e8ba1cea	if(size_table[index1] - val > 0) \ val = get_bits(gb, size_table[index1] - val); \ else val = 0; \
7cc84d24	sign = 0 - (val&1); \ _dmv_y = (sign ^ ((val>>1) + offset_table[index1])) - sign; \ }
be3492ec	/** Predict and set motion vector */
e4bf0302	static inline void vc1_pred_mv(MpegEncContext s, int n, int dmv_x, int dmv_y, int mv1, int r_x, int r_y, uint8_t is_intra)
be3492ec	{
e4bf0302	int xy, wrap, off = 0;
be3492ec	int16_t A, B, C; int px, py; int sum; / scale MV difference to be quad-pel */
87dfe848	dmv_x <<= 1 - s->quarter_sample; dmv_y <<= 1 - s->quarter_sample;
be3492ec	wrap = s->b8_stride;
e4bf0302	xy = s->block_index[n];
be3492ec
e4bf0302	if(s->mb_intra){ s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = 0; s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = 0;
9a44385e	s->current_picture.motion_val[1][xy][0] = 0; s->current_picture.motion_val[1][xy][1] = 0;
e4bf0302	if(mv1) { /* duplicate motion data for 1-MV block */ s->current_picture.motion_val[0][xy + 1][0] = 0; s->current_picture.motion_val[0][xy + 1][1] = 0; s->current_picture.motion_val[0][xy + wrap][0] = 0; s->current_picture.motion_val[0][xy + wrap][1] = 0; s->current_picture.motion_val[0][xy + wrap + 1][0] = 0; s->current_picture.motion_val[0][xy + wrap + 1][1] = 0;
9a44385e	s->current_picture.motion_val[1][xy + 1][0] = 0; s->current_picture.motion_val[1][xy + 1][1] = 0; s->current_picture.motion_val[1][xy + wrap][0] = 0; s->current_picture.motion_val[1][xy + wrap][1] = 0; s->current_picture.motion_val[1][xy + wrap + 1][0] = 0; s->current_picture.motion_val[1][xy + wrap + 1][1] = 0;
e4bf0302	} return; } C = s->current_picture.motion_val[0][xy - 1]; A = s->current_picture.motion_val[0][xy - wrap]; if(mv1) off = (s->mb_x == (s->mb_width - 1)) ? -1 : 2; else { //in 4-MV mode different blocks have different B predictor position switch(n){ case 0: off = (s->mb_x > 0) ? -1 : 1; break; case 1: off = (s->mb_x == (s->mb_width - 1)) ? -1 : 1; break; case 2: off = 1; break; case 3: off = -1; } } B = s->current_picture.motion_val[0][xy - wrap + off];
be3492ec
e4bf0302	if(!s->first_slice_line \|\| (n==2 \|\| n==3)) { // predictor A is not out of bounds
be3492ec	if(s->mb_width == 1) { px = A[0]; py = A[1]; } else { px = mid_pred(A[0], B[0], C[0]); py = mid_pred(A[1], B[1], C[1]); }
e4bf0302	} else if(s->mb_x \|\| (n==1 \|\| n==3)) { // predictor C is not out of bounds
be3492ec	px = C[0]; py = C[1]; } else { px = py = 0; } /* Pullback MV as specified in 8.3.5.3.4 */ { int qx, qy, X, Y;
ef6cc8ce	qx = (s->mb_x << 6) + ((n==1 \|\| n==3) ? 32 : 0); qy = (s->mb_y << 6) + ((n==2 \|\| n==3) ? 32 : 0);
be3492ec	X = (s->mb_width << 6) - 4; Y = (s->mb_height << 6) - 4; if(mv1) { if(qx + px < -60) px = -60 - qx; if(qy + py < -60) py = -60 - qy; } else { if(qx + px < -28) px = -28 - qx; if(qy + py < -28) py = -28 - qy; } if(qx + px > X) px = X - qx; if(qy + py > Y) py = Y - qy; } /* Calculate hybrid prediction as specified in 8.3.5.3.5 */
e4bf0302	if((!s->first_slice_line \|\| (n==2 \|\| n==3)) && (s->mb_x \|\| (n==1 \|\| n==3))) { if(is_intra[xy - wrap])
c26abfa5	sum = FFABS(px) + FFABS(py);
be3492ec	else
c26abfa5	sum = FFABS(px - A[0]) + FFABS(py - A[1]);
be3492ec	if(sum > 32) { if(get_bits1(&s->gb)) { px = A[0]; py = A[1]; } else { px = C[0]; py = C[1]; } } else {
e4bf0302	if(is_intra[xy - 1])
c26abfa5	sum = FFABS(px) + FFABS(py);
be3492ec	else
c26abfa5	sum = FFABS(px - C[0]) + FFABS(py - C[1]);
be3492ec	if(sum > 32) { if(get_bits1(&s->gb)) { px = A[0]; py = A[1]; } else { px = C[0]; py = C[1]; } } } } /* store MV using signed modulus of MV range defined in 4.11 */
e4bf0302	s->mv[0][n][0] = s->current_picture.motion_val[0][xy][0] = ((px + dmv_x + r_x) & ((r_x << 1) - 1)) - r_x; s->mv[0][n][1] = s->current_picture.motion_val[0][xy][1] = ((py + dmv_y + r_y) & ((r_y << 1) - 1)) - r_y; if(mv1) { /* duplicate motion data for 1-MV block */ s->current_picture.motion_val[0][xy + 1][0] = s->current_picture.motion_val[0][xy][0]; s->current_picture.motion_val[0][xy + 1][1] = s->current_picture.motion_val[0][xy][1]; s->current_picture.motion_val[0][xy + wrap][0] = s->current_picture.motion_val[0][xy][0]; s->current_picture.motion_val[0][xy + wrap][1] = s->current_picture.motion_val[0][xy][1]; s->current_picture.motion_val[0][xy + wrap + 1][0] = s->current_picture.motion_val[0][xy][0]; s->current_picture.motion_val[0][xy + wrap + 1][1] = s->current_picture.motion_val[0][xy][1]; }
be3492ec	}
fb2d9140	/** Motion compensation for direct or interpolated blocks in B-frames / static void vc1_interp_mc(VC1Context v) { MpegEncContext s = &v->s; DSPContext dsp = &v->s.dsp; uint8_t srcY, srcU, *srcV; int dxy, uvdxy, mx, my, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y; if(!v->s.next_picture.data[0])return; mx = s->mv[1][0][0]; my = s->mv[1][0][1]; uvmx = (mx + ((mx & 3) == 3)) >> 1; uvmy = (my + ((my & 3) == 3)) >> 1;
08baa3e0	if(v->fastuvmc) { uvmx = uvmx + ((uvmx<0)?-(uvmx&1):(uvmx&1)); uvmy = uvmy + ((uvmy<0)?-(uvmy&1):(uvmy&1)); }
fb2d9140	srcY = s->next_picture.data[0]; srcU = s->next_picture.data[1]; srcV = s->next_picture.data[2]; src_x = s->mb_x * 16 + (mx >> 2); src_y = s->mb_y * 16 + (my >> 2); uvsrc_x = s->mb_x * 8 + (uvmx >> 2); uvsrc_y = s->mb_y * 8 + (uvmy >> 2);
7c971233	if(v->profile != PROFILE_ADVANCED){ src_x = av_clip( src_x, -16, s->mb_width * 16); src_y = av_clip( src_y, -16, s->mb_height * 16); uvsrc_x = av_clip(uvsrc_x, -8, s->mb_width * 8); uvsrc_y = av_clip(uvsrc_y, -8, s->mb_height * 8); }else{ src_x = av_clip( src_x, -17, s->avctx->coded_width); src_y = av_clip( src_y, -18, s->avctx->coded_height + 1); uvsrc_x = av_clip(uvsrc_x, -8, s->avctx->coded_width >> 1); uvsrc_y = av_clip(uvsrc_y, -8, s->avctx->coded_height >> 1); }
fb2d9140	srcY += src_y * s->linesize + src_x; srcU += uvsrc_y * s->uvlinesize + uvsrc_x; srcV += uvsrc_y * s->uvlinesize + uvsrc_x; /* for grayscale we should not try to read from unknown area / if(s->flags & CODEC_FLAG_GRAY) { srcU = s->edge_emu_buffer + 18 s->linesize; srcV = s->edge_emu_buffer + 18 * s->linesize; } if(v->rangeredfrm \|\| (unsigned)src_x > s->h_edge_pos - (mx&3) - 16 \|\| (unsigned)src_y > s->v_edge_pos - (my&3) - 16){ uint8_t uvbuf= s->edge_emu_buffer + 19 s->linesize;
b116cc7f	srcY -= s->mspel * (1 + s->linesize); ff_emulated_edge_mc(s->edge_emu_buffer, srcY, s->linesize, 17+s->mspel2, 17+s->mspel2,
fb2d9140	src_x - s->mspel, src_y - s->mspel, s->h_edge_pos, s->v_edge_pos); srcY = s->edge_emu_buffer; ff_emulated_edge_mc(uvbuf , srcU, s->uvlinesize, 8+1, 8+1, uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); ff_emulated_edge_mc(uvbuf + 16, srcV, s->uvlinesize, 8+1, 8+1, uvsrc_x, uvsrc_y, s->h_edge_pos >> 1, s->v_edge_pos >> 1); srcU = uvbuf; srcV = uvbuf + 16; /* if we deal with range reduction we need to scale source blocks / if(v->rangeredfrm) { int i, j; uint8_t src, *src2; src = srcY;
b116cc7f	for(j = 0; j < 17 + s->mspel2; j++) { for(i = 0; i < 17 + s->mspel2; i++) src[i] = ((src[i] - 128) >> 1) + 128;
fb2d9140	src += s->linesize; } src = srcU; src2 = srcV; for(j = 0; j < 9; j++) { for(i = 0; i < 9; i++) { src[i] = ((src[i] - 128) >> 1) + 128; src2[i] = ((src2[i] - 128) >> 1) + 128; } src += s->uvlinesize; src2 += s->uvlinesize; } }
b116cc7f	srcY += s->mspel * (1 + s->linesize);
fb2d9140	}
66ff2c1f	mx >>= 1; my >>= 1; dxy = ((my & 1) << 1) \| (mx & 1);
fb2d9140
66ff2c1f	dsp->avg_pixels_tab[0][dxy](s->dest[0], srcY, s->linesize, 16);
fb2d9140	if(s->flags & CODEC_FLAG_GRAY) return; /* Chroma MC always uses qpel blilinear */ uvdxy = ((uvmy & 3) << 2) \| (uvmx & 3);
c8868640	uvmx = (uvmx&3)<<1; uvmy = (uvmy&3)<<1; dsp->avg_h264_chroma_pixels_tab[0](s->dest[1], srcU, s->uvlinesize, 8, uvmx, uvmy); dsp->avg_h264_chroma_pixels_tab[0](s->dest[2], srcV, s->uvlinesize, 8, uvmx, uvmy);
fb2d9140	}
849f1035	static av_always_inline int scale_mv(int value, int bfrac, int inv, int qs)
1dc1ce64	{ int n = bfrac; #if B_FRACTION_DEN==256 if(inv) n -= 256; if(!qs) return 2 * ((value * n + 255) >> 9); return (value * n + 128) >> 8; #else if(inv) n -= B_FRACTION_DEN; if(!qs) return 2 * ((value * n + B_FRACTION_DEN - 1) / (2 * B_FRACTION_DEN)); return (value * n + B_FRACTION_DEN/2) / B_FRACTION_DEN; #endif }
5df68893	/** Reconstruct motion vector for B-frame and do motion compensation / static inline void vc1_b_mc(VC1Context v, int dmv_x[2], int dmv_y[2], int direct, int mode) {
6b33eed8	if(v->use_ic) { v->mv_mode2 = v->mv_mode; v->mv_mode = MV_PMODE_INTENSITY_COMP; }
1dc1ce64	if(direct) { vc1_mc_1mv(v, 0); vc1_interp_mc(v);
6b33eed8	if(v->use_ic) v->mv_mode = v->mv_mode2;
1dc1ce64	return; } if(mode == BMV_TYPE_INTERPOLATED) { vc1_mc_1mv(v, 0); vc1_interp_mc(v);
6b33eed8	if(v->use_ic) v->mv_mode = v->mv_mode2;
1dc1ce64	return; }
6b33eed8	if(v->use_ic && (mode == BMV_TYPE_BACKWARD)) v->mv_mode = v->mv_mode2;
e179fbc8	vc1_mc_1mv(v, (mode == BMV_TYPE_BACKWARD));
6b33eed8	if(v->use_ic) v->mv_mode = v->mv_mode2;
1dc1ce64	} static inline void vc1_pred_b_mv(VC1Context *v, int dmv_x[2], int dmv_y[2], int direct, int mvtype) {
5df68893	MpegEncContext *s = &v->s;
1dc1ce64	int xy, wrap, off = 0; int16_t A, B, C; int px, py; int sum; int r_x, r_y; const uint8_t is_intra = v->mb_type[0];
5df68893
1dc1ce64	r_x = v->range_x; r_y = v->range_y;
5df68893	/* scale MV difference to be quad-pel */ dmv_x[0] <<= 1 - s->quarter_sample; dmv_y[0] <<= 1 - s->quarter_sample; dmv_x[1] <<= 1 - s->quarter_sample; dmv_y[1] <<= 1 - s->quarter_sample;
1dc1ce64	wrap = s->b8_stride; xy = s->block_index[0];
fb2d9140
1dc1ce64	if(s->mb_intra) { s->current_picture.motion_val[0][xy][0] = s->current_picture.motion_val[0][xy][1] = s->current_picture.motion_val[1][xy][0] = s->current_picture.motion_val[1][xy][1] = 0;
fb2d9140	return; }
162f412d	s->mv[0][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 0, s->quarter_sample); s->mv[0][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 0, s->quarter_sample); s->mv[1][0][0] = scale_mv(s->next_picture.motion_val[1][xy][0], v->bfraction, 1, s->quarter_sample); s->mv[1][0][1] = scale_mv(s->next_picture.motion_val[1][xy][1], v->bfraction, 1, s->quarter_sample);
a6145615	/* Pullback predicted motion vectors as specified in 8.4.5.4 */ s->mv[0][0][0] = av_clip(s->mv[0][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6)); s->mv[0][0][1] = av_clip(s->mv[0][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6)); s->mv[1][0][0] = av_clip(s->mv[1][0][0], -60 - (s->mb_x << 6), (s->mb_width << 6) - 4 - (s->mb_x << 6)); s->mv[1][0][1] = av_clip(s->mv[1][0][1], -60 - (s->mb_y << 6), (s->mb_height << 6) - 4 - (s->mb_y << 6));
1dc1ce64	if(direct) { s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0]; s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1]; s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0]; s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
5df68893	return; }
162f412d	if((mvtype == BMV_TYPE_FORWARD) \|\| (mvtype == BMV_TYPE_INTERPOLATED)) {
1dc1ce64	C = s->current_picture.motion_val[0][xy - 2]; A = s->current_picture.motion_val[0][xy - wrap2]; off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; B = s->current_picture.motion_val[0][xy - wrap2 + off];
44942d52	if(!s->mb_x) C[0] = C[1] = 0;
1dc1ce64	if(!s->first_slice_line) { // predictor A is not out of bounds if(s->mb_width == 1) { px = A[0]; py = A[1]; } else { px = mid_pred(A[0], B[0], C[0]); py = mid_pred(A[1], B[1], C[1]); } } else if(s->mb_x) { // predictor C is not out of bounds px = C[0]; py = C[1]; } else { px = py = 0;
5df68893	}
1dc1ce64	/* Pullback MV as specified in 8.3.5.3.4 / { int qx, qy, X, Y; if(v->profile < PROFILE_ADVANCED) { qx = (s->mb_x << 5); qy = (s->mb_y << 5); X = (s->mb_width << 5) - 4; Y = (s->mb_height << 5) - 4; if(qx + px < -28) px = -28 - qx; if(qy + py < -28) py = -28 - qy; if(qx + px > X) px = X - qx; if(qy + py > Y) py = Y - qy; } else { qx = (s->mb_x << 6); qy = (s->mb_y << 6); X = (s->mb_width << 6) - 4; Y = (s->mb_height << 6) - 4; if(qx + px < -60) px = -60 - qx; if(qy + py < -60) py = -60 - qy; if(qx + px > X) px = X - qx; if(qy + py > Y) py = Y - qy; } } / Calculate hybrid prediction as specified in 8.3.5.3.5 */ if(0 && !s->first_slice_line && s->mb_x) { if(is_intra[xy - wrap])
c26abfa5	sum = FFABS(px) + FFABS(py);
1dc1ce64	else
c26abfa5	sum = FFABS(px - A[0]) + FFABS(py - A[1]);
1dc1ce64	if(sum > 32) { if(get_bits1(&s->gb)) { px = A[0]; py = A[1]; } else { px = C[0]; py = C[1]; } } else { if(is_intra[xy - 2])
c26abfa5	sum = FFABS(px) + FFABS(py);
1dc1ce64	else
c26abfa5	sum = FFABS(px - C[0]) + FFABS(py - C[1]);
1dc1ce64	if(sum > 32) { if(get_bits1(&s->gb)) { px = A[0]; py = A[1]; } else { px = C[0]; py = C[1]; } } }
5df68893	}
1dc1ce64	/* store MV using signed modulus of MV range defined in 4.11 */ s->mv[0][0][0] = ((px + dmv_x[0] + r_x) & ((r_x << 1) - 1)) - r_x; s->mv[0][0][1] = ((py + dmv_y[0] + r_y) & ((r_y << 1) - 1)) - r_y;
5df68893	}
162f412d	if((mvtype == BMV_TYPE_BACKWARD) \|\| (mvtype == BMV_TYPE_INTERPOLATED)) {
1dc1ce64	C = s->current_picture.motion_val[1][xy - 2]; A = s->current_picture.motion_val[1][xy - wrap2]; off = (s->mb_x == (s->mb_width - 1)) ? -2 : 2; B = s->current_picture.motion_val[1][xy - wrap2 + off];
5df68893
44942d52	if(!s->mb_x) C[0] = C[1] = 0;
1dc1ce64	if(!s->first_slice_line) { // predictor A is not out of bounds if(s->mb_width == 1) { px = A[0]; py = A[1]; } else { px = mid_pred(A[0], B[0], C[0]); py = mid_pred(A[1], B[1], C[1]); } } else if(s->mb_x) { // predictor C is not out of bounds px = C[0]; py = C[1]; } else { px = py = 0; } /* Pullback MV as specified in 8.3.5.3.4 / { int qx, qy, X, Y; if(v->profile < PROFILE_ADVANCED) { qx = (s->mb_x << 5); qy = (s->mb_y << 5); X = (s->mb_width << 5) - 4; Y = (s->mb_height << 5) - 4; if(qx + px < -28) px = -28 - qx; if(qy + py < -28) py = -28 - qy; if(qx + px > X) px = X - qx; if(qy + py > Y) py = Y - qy; } else { qx = (s->mb_x << 6); qy = (s->mb_y << 6); X = (s->mb_width << 6) - 4; Y = (s->mb_height << 6) - 4; if(qx + px < -60) px = -60 - qx; if(qy + py < -60) py = -60 - qy; if(qx + px > X) px = X - qx; if(qy + py > Y) py = Y - qy; } } / Calculate hybrid prediction as specified in 8.3.5.3.5 */ if(0 && !s->first_slice_line && s->mb_x) { if(is_intra[xy - wrap])
c26abfa5	sum = FFABS(px) + FFABS(py);
1dc1ce64	else
c26abfa5	sum = FFABS(px - A[0]) + FFABS(py - A[1]);
1dc1ce64	if(sum > 32) { if(get_bits1(&s->gb)) { px = A[0]; py = A[1]; } else { px = C[0]; py = C[1]; } } else { if(is_intra[xy - 2])
c26abfa5	sum = FFABS(px) + FFABS(py);
1dc1ce64	else
c26abfa5	sum = FFABS(px - C[0]) + FFABS(py - C[1]);
1dc1ce64	if(sum > 32) { if(get_bits1(&s->gb)) { px = A[0]; py = A[1]; } else { px = C[0]; py = C[1]; } } } } /* store MV using signed modulus of MV range defined in 4.11 */
5df68893
1dc1ce64	s->mv[1][0][0] = ((px + dmv_x[1] + r_x) & ((r_x << 1) - 1)) - r_x; s->mv[1][0][1] = ((py + dmv_y[1] + r_y) & ((r_y << 1) - 1)) - r_y; } s->current_picture.motion_val[0][xy][0] = s->mv[0][0][0]; s->current_picture.motion_val[0][xy][1] = s->mv[0][0][1]; s->current_picture.motion_val[1][xy][0] = s->mv[1][0][0]; s->current_picture.motion_val[1][xy][1] = s->mv[1][0][1];
5df68893	}
be3492ec	/** Get predicted DC value for I-frames only
7cc84d24	* prediction dir: left=0, top=1
8da75fb2	* @param s MpegEncContext
81169111	* @param overlap flag indicating that overlap filtering is used * @param pq integer part of picture quantizer
8da75fb2	* @param[in] n block index in the current MB * @param dc_val_ptr Pointer to DC predictor * @param dir_ptr Prediction direction for use in AC prediction
7cc84d24	*/
be3492ec	static inline int vc1_i_pred_dc(MpegEncContext *s, int overlap, int pq, int n,
b86216de	int16_t *dc_val_ptr, int dir_ptr)
7cc84d24	{ int a, b, c, wrap, pred, scale;
b86216de	int16_t *dc_val;
be3492ec	static const uint16_t dcpred[32] = { -1, 1024, 512, 341, 256, 205, 171, 146, 128,
115329f1	114, 102, 93, 85, 79, 73, 68, 64, 60, 57, 54, 51, 49, 47, 45, 43,
8da75fb2	41, 39, 38, 37, 35, 34, 33 }; /* find prediction - wmv3_dc_scale always used here in fact */ if (n < 4) scale = s->y_dc_scale; else scale = s->c_dc_scale;
42cc17f9
7cc84d24	wrap = s->block_wrap[n]; dc_val= s->dc_val[0] + s->block_index[n];
be3492ec	/* B A * C X
7cc84d24	*/
be3492ec	c = dc_val[ - 1];
7cc84d24	b = dc_val[ - 1 - wrap];
be3492ec	a = dc_val[ - wrap];
42cc17f9
be3492ec	if (pq < 9 \|\| !overlap)
8da75fb2	{ /* Set outer values */
d2779ecd	if (s->first_slice_line && (n!=2 && n!=3)) b=a=dcpred[scale];
be3492ec	if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=dcpred[scale];
8da75fb2	} else { /* Set outer values */
d2779ecd	if (s->first_slice_line && (n!=2 && n!=3)) b=a=0;
be3492ec	if (s->mb_x == 0 && (n!=1 && n!=3)) b=c=0;
7cc84d24	} if (abs(a - b) <= abs(b - c)) { pred = c;
be3492ec	*dir_ptr = 1;//left
7cc84d24	} else { pred = a;
be3492ec	*dir_ptr = 0;//top
7cc84d24	} /* update predictor / dc_val_ptr = &dc_val[0]; return pred; }
be3492ec	/** Get predicted DC value * prediction dir: left=0, top=1 * @param s MpegEncContext
81169111	* @param overlap flag indicating that overlap filtering is used * @param pq integer part of picture quantizer
be3492ec	* @param[in] n block index in the current MB
81169111	* @param a_avail flag indicating top block availability * @param c_avail flag indicating left block availability
be3492ec	* @param dc_val_ptr Pointer to DC predictor * @param dir_ptr Prediction direction for use in AC prediction
7cc84d24	*/
be3492ec	static inline int vc1_pred_dc(MpegEncContext *s, int overlap, int pq, int n, int a_avail, int c_avail,
b86216de	int16_t *dc_val_ptr, int dir_ptr)
e5540b3f	{
be3492ec	int a, b, c, wrap, pred, scale;
b86216de	int16_t *dc_val;
be3492ec	int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
50af2fd3	int q1, q2 = 0;
8da75fb2
be3492ec	/* find prediction - wmv3_dc_scale always used here in fact */ if (n < 4) scale = s->y_dc_scale; else scale = s->c_dc_scale;
7cc84d24
be3492ec	wrap = s->block_wrap[n]; dc_val= s->dc_val[0] + s->block_index[n];
7cc84d24
be3492ec	/* B A * C X */ c = dc_val[ - 1]; b = dc_val[ - 1 - wrap]; a = dc_val[ - wrap];
27ed1a0d	/* scale predictors if needed */ q1 = s->current_picture.qscale_table[mb_pos]; if(c_avail && (n!= 1 && n!=3)) { q2 = s->current_picture.qscale_table[mb_pos - 1]; if(q2 && q2 != q1)
a5c14fca	c = (c * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
27ed1a0d	} if(a_avail && (n!= 2 && n!=3)) { q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride]; if(q2 && q2 != q1)
a5c14fca	a = (a * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
27ed1a0d	} if(a_avail && c_avail && (n!=3)) { int off = mb_pos; if(n != 1) off--; if(n != 2) off -= s->mb_stride; q2 = s->current_picture.qscale_table[off]; if(q2 && q2 != q1)
a5c14fca	b = (b * s->y_dc_scale_table[q2] * ff_vc1_dqscale[s->y_dc_scale_table[q1] - 1] + 0x20000) >> 18;
27ed1a0d	}
42cc17f9
be3492ec	if(a_avail && c_avail) { if(abs(a - b) <= abs(b - c)) { pred = c; *dir_ptr = 1;//left
7cc84d24	} else {
be3492ec	pred = a; *dir_ptr = 0;//top
e5540b3f	}
be3492ec	} else if(a_avail) { pred = a; dir_ptr = 0;//top } else if(c_avail) { pred = c; dir_ptr = 1;//left } else { pred = 0; *dir_ptr = 1;//left
e5540b3f	}
7cc84d24
be3492ec	/* update predictor / dc_val_ptr = &dc_val[0]; return pred;
e5540b3f	}
7cc84d24
81169111	/** @} */ // Block group
2ce151f8
115329f1	/**
81169111	* @defgroup vc1_std_mb VC1 Macroblock-level functions in Simple/Main Profiles
2ce151f8	* @see 7.1.4, p91 and 8.1.1.7, p(1)04 * @{ */
7cc84d24
10b9c374	static inline int vc1_coded_block_pred(MpegEncContext * s, int n, uint8_t **coded_block_ptr)
7cc84d24	{ int xy, wrap, pred, a, b, c; xy = s->block_index[n]; wrap = s->b8_stride; /* B C
115329f1	* A X
7cc84d24	*/ a = s->coded_block[xy - 1 ]; b = s->coded_block[xy - 1 - wrap]; c = s->coded_block[xy - wrap];
42cc17f9
7cc84d24	if (b == c) { pred = a; } else { pred = c; }
42cc17f9
7cc84d24	/* store value / coded_block_ptr = &s->coded_block[xy]; return pred; }
be3492ec	/** * Decode one AC coefficient * @param v The VC1 context * @param last Last coefficient * @param skip How much zero coefficients to skip * @param value Decoded AC coefficient value
81169111	* @param codingset set of VLC to decode data
be3492ec	* @see 8.1.3.4
8da75fb2	*/
be3492ec	static void vc1_decode_ac_coeff(VC1Context v, int last, int skip, int value, int codingset)
7cc84d24	{
be3492ec	GetBitContext *gb = &v->s.gb; int index, escape, run = 0, level = 0, lst = 0;
a5c14fca	index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
be3492ec	if (index != vc1_ac_sizes[codingset] - 1) { run = vc1_index_decode_table[codingset][index][0]; level = vc1_index_decode_table[codingset][index][1];
8069e2f6	lst = index >= vc1_last_decode_table[codingset] \|\| get_bits_left(gb) < 0;
5fc32c27	if(get_bits1(gb))
be3492ec	level = -level; } else { escape = decode210(gb);
87dfe848	if (escape != 2) {
a5c14fca	index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3);
be3492ec	run = vc1_index_decode_table[codingset][index][0]; level = vc1_index_decode_table[codingset][index][1]; lst = index >= vc1_last_decode_table[codingset];
87dfe848	if(escape == 0) { if(lst) level += vc1_last_delta_level_table[codingset][run]; else level += vc1_delta_level_table[codingset][run]; } else { if(lst) run += vc1_last_delta_run_table[codingset][level] + 1; else run += vc1_delta_run_table[codingset][level] + 1; }
5fc32c27	if(get_bits1(gb))
be3492ec	level = -level; } else { int sign;
5fc32c27	lst = get_bits1(gb);
be3492ec	if(v->s.esc3_level_length == 0) { if(v->pq < 8 \|\| v->dquantfrm) { // table 59 v->s.esc3_level_length = get_bits(gb, 3); if(!v->s.esc3_level_length) v->s.esc3_level_length = get_bits(gb, 2) + 8; } else { //table 60
3c2ddb59	v->s.esc3_level_length = get_unary(gb, 1, 6) + 2;
be3492ec	} v->s.esc3_run_length = 3 + get_bits(gb, 2); } run = get_bits(gb, v->s.esc3_run_length);
5fc32c27	sign = get_bits1(gb);
be3492ec	level = get_bits(gb, v->s.esc3_level_length); if(sign) level = -level; } } last = lst; skip = run; *value = level; }
7cc84d24
be3492ec	/** Decode intra block in intra frames - should be faster than decode_intra_block * @param v VC1Context * @param block block to decode
81169111	* @param[in] n subblock index
be3492ec	* @param coded are AC coeffs present or not * @param codingset set of VLC to decode data / static int vc1_decode_i_block(VC1Context v, DCTELEM block[64], int n, int coded, int codingset) { GetBitContext gb = &v->s.gb; MpegEncContext s = &v->s; int dc_pred_dir = 0; /* Direction of the DC prediction used */ int run_diff, i;
b86216de	int16_t *dc_val;
be3492ec	int16_t ac_val, ac_val2; int dcdiff;
7cc84d24
be3492ec	/* Get DC differential */ if (n < 4) { dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); } else { dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); } if (dcdiff < 0){ av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n"); return -1; } if (dcdiff)
7cc84d24	{
be3492ec	if (dcdiff == 119 /* ESC index value /) { / TODO: Optimize */ if (v->pq == 1) dcdiff = get_bits(gb, 10); else if (v->pq == 2) dcdiff = get_bits(gb, 9); else dcdiff = get_bits(gb, 8);
7cc84d24	}
be3492ec	else
8da75fb2	{
be3492ec	if (v->pq == 1) dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3; else if (v->pq == 2)
5fc32c27	dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
be3492ec	}
5fc32c27	if (get_bits1(gb))
be3492ec	dcdiff = -dcdiff; } /* Prediction / dcdiff += vc1_i_pred_dc(&v->s, v->overlap, v->pq, n, &dc_val, &dc_pred_dir); dc_val = dcdiff; /* Store the quantized DC coeff, used for prediction / if (n < 4) { block[0] = dcdiff s->y_dc_scale; } else { block[0] = dcdiff * s->c_dc_scale; } /* Skip ? / run_diff = 0; i = 0; if (!coded) { goto not_coded; } //AC Decoding i = 1; { int last = 0, skip, value; const int8_t zz_table; int scale; int k; scale = v->pq * 2 + v->halfpq; if(v->s.ac_pred) { if(!dc_pred_dir)
5a893969	zz_table = wmv1_scantable[2];
be3492ec	else
5a893969	zz_table = wmv1_scantable[3];
be3492ec	} else
5a893969	zz_table = wmv1_scantable[1];
be3492ec	ac_val = s->ac_val[0][0] + s->block_index[n] * 16; ac_val2 = ac_val; if(dc_pred_dir) //left ac_val -= 16; else //top ac_val -= 16 * s->block_wrap[n]; while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, codingset); i += skip; if(i > 63) break; block[zz_table[i++]] = value; } /* apply AC prediction if needed / if(s->ac_pred) { if(dc_pred_dir) { //left for(k = 1; k < 8; k++) block[k << 3] += ac_val[k]; } else { //top for(k = 1; k < 8; k++) block[k] += ac_val[k + 8]; } } / save AC coeffs for further prediction / for(k = 1; k < 8; k++) { ac_val2[k] = block[k << 3]; ac_val2[k + 8] = block[k]; } / scale AC coeffs / for(k = 1; k < 64; k++) if(block[k]) { block[k] = scale; if(!v->pquantizer) block[k] += (block[k] < 0) ? -v->pq : v->pq; } if(s->ac_pred) i = 63; } not_coded: if(!coded) { int k, scale; ac_val = s->ac_val[0][0] + s->block_index[n] * 16; ac_val2 = ac_val; scale = v->pq * 2 + v->halfpq; memset(ac_val2, 0, 16 * 2); if(dc_pred_dir) {//left ac_val -= 16; if(s->ac_pred) memcpy(ac_val2, ac_val, 8 * 2); } else {//top ac_val -= 16 * s->block_wrap[n]; if(s->ac_pred) memcpy(ac_val2 + 8, ac_val + 8, 8 * 2); } /* apply AC prediction if needed / if(s->ac_pred) { if(dc_pred_dir) { //left for(k = 1; k < 8; k++) { block[k << 3] = ac_val[k] scale;
4b944659	if(!v->pquantizer && block[k << 3])
be3492ec	block[k << 3] += (block[k << 3] < 0) ? -v->pq : v->pq; } } else { //top for(k = 1; k < 8; k++) { block[k] = ac_val[k + 8] * scale;
4b944659	if(!v->pquantizer && block[k])
be3492ec	block[k] += (block[k] < 0) ? -v->pq : v->pq; } } i = 63;
8da75fb2	}
7cc84d24	}
be3492ec	s->block_last_index[n] = i; return 0; }
3c275f6d	/** Decode intra block in intra frames - should be faster than decode_intra_block * @param v VC1Context * @param block block to decode
81169111	* @param[in] n subblock number
3c275f6d	* @param coded are AC coeffs present or not * @param codingset set of VLC to decode data
81169111	* @param mquant quantizer value for this macroblock
3c275f6d	/ static int vc1_decode_i_block_adv(VC1Context v, DCTELEM block[64], int n, int coded, int codingset, int mquant) { GetBitContext gb = &v->s.gb; MpegEncContext s = &v->s; int dc_pred_dir = 0; /* Direction of the DC prediction used */ int run_diff, i;
b86216de	int16_t *dc_val;
3c275f6d	int16_t ac_val, ac_val2; int dcdiff; int a_avail = v->a_avail, c_avail = v->c_avail; int use_pred = s->ac_pred; int scale; int q1, q2 = 0; int mb_pos = s->mb_x + s->mb_y * s->mb_stride; /* Get DC differential / if (n < 4) { dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); } else { dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); } if (dcdiff < 0){ av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n"); return -1; } if (dcdiff) { if (dcdiff == 119 / ESC index value /) { / TODO: Optimize */ if (mquant == 1) dcdiff = get_bits(gb, 10); else if (mquant == 2) dcdiff = get_bits(gb, 9); else dcdiff = get_bits(gb, 8); } else { if (mquant == 1) dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3; else if (mquant == 2)
5fc32c27	dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
3c275f6d	}
5fc32c27	if (get_bits1(gb))
3c275f6d	dcdiff = -dcdiff; } /* Prediction / dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, v->a_avail, v->c_avail, &dc_val, &dc_pred_dir); dc_val = dcdiff; /* Store the quantized DC coeff, used for prediction / if (n < 4) { block[0] = dcdiff s->y_dc_scale; } else { block[0] = dcdiff * s->c_dc_scale; } /* Skip ? */ run_diff = 0; i = 0; //AC Decoding i = 1;
26bdc6bc	/* check if AC is needed at all */
3c275f6d	if(!a_avail && !c_avail) use_pred = 0; ac_val = s->ac_val[0][0] + s->block_index[n] * 16; ac_val2 = ac_val;
a9d78ac5	scale = mquant * 2 + ((mquant == v->pq) ? v->halfpq : 0);
3c275f6d	if(dc_pred_dir) //left ac_val -= 16; else //top ac_val -= 16 * s->block_wrap[n]; q1 = s->current_picture.qscale_table[mb_pos];
b956373b	if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1]; if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
b6661510	if(dc_pred_dir && n==1) q2 = q1; if(!dc_pred_dir && n==2) q2 = q1; if(n==3) q2 = q1;
3c275f6d	if(coded) { int last = 0, skip, value; const int8_t *zz_table; int k; if(v->s.ac_pred) { if(!dc_pred_dir)
5a893969	zz_table = wmv1_scantable[2];
3c275f6d	else
5a893969	zz_table = wmv1_scantable[3];
3c275f6d	} else
5a893969	zz_table = wmv1_scantable[1];
3c275f6d	while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, codingset); i += skip; if(i > 63) break; block[zz_table[i++]] = value; } /* apply AC prediction if needed / if(use_pred) { / scale predictors if needed*/ if(q2 && q1!=q2) {
25e9c7ef	q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
3c275f6d	if(dc_pred_dir) { //left for(k = 1; k < 8; k++)
a5c14fca	block[k << 3] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
3c275f6d	} else { //top for(k = 1; k < 8; k++)
a5c14fca	block[k] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
3c275f6d	} } else { if(dc_pred_dir) { //left for(k = 1; k < 8; k++) block[k << 3] += ac_val[k]; } else { //top for(k = 1; k < 8; k++) block[k] += ac_val[k + 8]; } } } /* save AC coeffs for further prediction / for(k = 1; k < 8; k++) { ac_val2[k] = block[k << 3]; ac_val2[k + 8] = block[k]; } / scale AC coeffs / for(k = 1; k < 64; k++) if(block[k]) { block[k] = scale; if(!v->pquantizer) block[k] += (block[k] < 0) ? -mquant : mquant; } if(use_pred) i = 63; } else { // no AC coeffs int k; memset(ac_val2, 0, 16 * 2); if(dc_pred_dir) {//left if(use_pred) { memcpy(ac_val2, ac_val, 8 * 2); if(q2 && q1!=q2) {
25e9c7ef	q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
3c275f6d	for(k = 1; k < 8; k++)
a5c14fca	ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
3c275f6d	} } } else {//top if(use_pred) { memcpy(ac_val2 + 8, ac_val + 8, 8 * 2); if(q2 && q1!=q2) {
25e9c7ef	q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
3c275f6d	for(k = 1; k < 8; k++)
a5c14fca	ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
3c275f6d	} } } /* apply AC prediction if needed / if(use_pred) { if(dc_pred_dir) { //left for(k = 1; k < 8; k++) { block[k << 3] = ac_val2[k] scale; if(!v->pquantizer && block[k << 3]) block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant; } } else { //top for(k = 1; k < 8; k++) { block[k] = ac_val2[k + 8] * scale; if(!v->pquantizer && block[k]) block[k] += (block[k] < 0) ? -mquant : mquant; } } i = 63; } } s->block_last_index[n] = i; return 0; }
be3492ec	/** Decode intra block in inter frames - more generic version than vc1_decode_i_block * @param v VC1Context * @param block block to decode
81169111	* @param[in] n subblock index
be3492ec	* @param coded are AC coeffs present or not * @param mquant block quantizer * @param codingset set of VLC to decode data / static int vc1_decode_intra_block(VC1Context v, DCTELEM block[64], int n, int coded, int mquant, int codingset) { GetBitContext gb = &v->s.gb; MpegEncContext s = &v->s; int dc_pred_dir = 0; /* Direction of the DC prediction used */ int run_diff, i;
b86216de	int16_t *dc_val;
be3492ec	int16_t ac_val, ac_val2; int dcdiff; int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
f26c2ef5	int a_avail = v->a_avail, c_avail = v->c_avail;
4a5343fa	int use_pred = s->ac_pred; int scale;
50af2fd3	int q1, q2 = 0;
be3492ec	/* XXX: Guard against dumb values of mquant / mquant = (mquant < 1) ? 0 : ( (mquant>31) ? 31 : mquant ); / Set DC scale - y and c use the same / s->y_dc_scale = s->y_dc_scale_table[mquant]; s->c_dc_scale = s->c_dc_scale_table[mquant]; / Get DC differential / if (n < 4) { dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_luma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); } else { dcdiff = get_vlc2(&s->gb, ff_msmp4_dc_chroma_vlc[s->dc_table_index].table, DC_VLC_BITS, 3); } if (dcdiff < 0){ av_log(s->avctx, AV_LOG_ERROR, "Illegal DC VLC\n"); return -1; } if (dcdiff) { if (dcdiff == 119 / ESC index value /) { / TODO: Optimize */ if (mquant == 1) dcdiff = get_bits(gb, 10); else if (mquant == 2) dcdiff = get_bits(gb, 9); else dcdiff = get_bits(gb, 8); } else { if (mquant == 1) dcdiff = (dcdiff<<2) + get_bits(gb, 2) - 3; else if (mquant == 2)
5fc32c27	dcdiff = (dcdiff<<1) + get_bits1(gb) - 1;
be3492ec	}
5fc32c27	if (get_bits1(gb))
be3492ec	dcdiff = -dcdiff; } /* Prediction / dcdiff += vc1_pred_dc(&v->s, v->overlap, mquant, n, a_avail, c_avail, &dc_val, &dc_pred_dir); dc_val = dcdiff; /* Store the quantized DC coeff, used for prediction / if (n < 4) { block[0] = dcdiff s->y_dc_scale; } else { block[0] = dcdiff * s->c_dc_scale; } /* Skip ? */ run_diff = 0; i = 0; //AC Decoding i = 1;
4a5343fa	/* check if AC is needed at all and adjust direction if needed / if(!a_avail) dc_pred_dir = 1; if(!c_avail) dc_pred_dir = 0; if(!a_avail && !c_avail) use_pred = 0; ac_val = s->ac_val[0][0] + s->block_index[n] 16; ac_val2 = ac_val;
0a45801f	scale = mquant * 2 + v->halfpq;
4a5343fa	if(dc_pred_dir) //left ac_val -= 16; else //top ac_val -= 16 * s->block_wrap[n];
50af2fd3	q1 = s->current_picture.qscale_table[mb_pos];
6f3e4e17	if(dc_pred_dir && c_avail && mb_pos) q2 = s->current_picture.qscale_table[mb_pos - 1]; if(!dc_pred_dir && a_avail && mb_pos >= s->mb_stride) q2 = s->current_picture.qscale_table[mb_pos - s->mb_stride];
b6661510	if(dc_pred_dir && n==1) q2 = q1; if(!dc_pred_dir && n==2) q2 = q1; if(n==3) q2 = q1;
50af2fd3
4a5343fa	if(coded) {
be3492ec	int last = 0, skip, value; const int8_t *zz_table; int k;
5a893969	zz_table = wmv1_scantable[0];
be3492ec	while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, codingset); i += skip; if(i > 63) break; block[zz_table[i++]] = value; } /* apply AC prediction if needed */
8f8d0e48	if(use_pred) {
be3492ec	/* scale predictors if needed*/
50af2fd3	if(q2 && q1!=q2) {
25e9c7ef	q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
be3492ec	if(dc_pred_dir) { //left for(k = 1; k < 8; k++)
a5c14fca	block[k << 3] += (ac_val[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
be3492ec	} else { //top for(k = 1; k < 8; k++)
a5c14fca	block[k] += (ac_val[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
be3492ec	} } else { if(dc_pred_dir) { //left for(k = 1; k < 8; k++) block[k << 3] += ac_val[k]; } else { //top for(k = 1; k < 8; k++) block[k] += ac_val[k + 8]; } } } /* save AC coeffs for further prediction / for(k = 1; k < 8; k++) { ac_val2[k] = block[k << 3]; ac_val2[k + 8] = block[k]; } / scale AC coeffs / for(k = 1; k < 64; k++) if(block[k]) { block[k] = scale; if(!v->pquantizer) block[k] += (block[k] < 0) ? -mquant : mquant; }
8f8d0e48	if(use_pred) i = 63;
4a5343fa	} else { // no AC coeffs int k;
8f8d0e48
be3492ec	memset(ac_val2, 0, 16 * 2); if(dc_pred_dir) {//left
e4bf0302	if(use_pred) {
be3492ec	memcpy(ac_val2, ac_val, 8 * 2);
50af2fd3	if(q2 && q1!=q2) {
25e9c7ef	q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
e4bf0302	for(k = 1; k < 8; k++)
a5c14fca	ac_val2[k] = (ac_val2[k] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
e4bf0302	} }
be3492ec	} else {//top
e4bf0302	if(use_pred) {
be3492ec	memcpy(ac_val2 + 8, ac_val + 8, 8 * 2);
50af2fd3	if(q2 && q1!=q2) {
25e9c7ef	q1 = q1 * 2 + ((q1 == v->pq) ? v->halfpq : 0) - 1; q2 = q2 * 2 + ((q2 == v->pq) ? v->halfpq : 0) - 1;
e4bf0302	for(k = 1; k < 8; k++)
a5c14fca	ac_val2[k + 8] = (ac_val2[k + 8] * q2 * ff_vc1_dqscale[q1 - 1] + 0x20000) >> 18;
e4bf0302	} }
be3492ec	} /* apply AC prediction if needed */
8f8d0e48	if(use_pred) {
be3492ec	if(dc_pred_dir) { //left for(k = 1; k < 8; k++) {
e4bf0302	block[k << 3] = ac_val2[k] * scale;
4b944659	if(!v->pquantizer && block[k << 3])
be3492ec	block[k << 3] += (block[k << 3] < 0) ? -mquant : mquant; } } else { //top for(k = 1; k < 8; k++) {
e4bf0302	block[k] = ac_val2[k + 8] * scale;
4b944659	if(!v->pquantizer && block[k])
be3492ec	block[k] += (block[k] < 0) ? -mquant : mquant; } } i = 63; } } s->block_last_index[n] = i; return 0; } /** Decode P block */
d2e45f33	static int vc1_decode_p_block(VC1Context *v, DCTELEM block[64], int n, int mquant, int ttmb, int first_block,
00a75000	uint8_t *dst, int linesize, int skip_block, int apply_filter, int cbp_top, int cbp_left)
be3492ec	{ MpegEncContext s = &v->s; GetBitContext gb = &s->gb; int i, j; int subblkpat = 0; int scale, off, idx, last, skip, value; int ttblk = ttmb & 7;
00a75000	int pat = 0;
be3492ec	if(ttmb == -1) {
a5c14fca	ttblk = ff_vc1_ttblk_to_tt[v->tt_index][get_vlc2(gb, ff_vc1_ttblk_vlc[v->tt_index].table, VC1_TTBLK_VLC_BITS, 1)];
be3492ec	} if(ttblk == TT_4X4) {
a5c14fca	subblkpat = ~(get_vlc2(gb, ff_vc1_subblkpat_vlc[v->tt_index].table, VC1_SUBBLKPAT_VLC_BITS, 1) + 1);
be3492ec	} if((ttblk != TT_8X8 && ttblk != TT_4X4) && (v->ttmbf \|\| (ttmb != -1 && (ttmb & 8) && !first_block))) { subblkpat = decode012(gb);
f26c2ef5	if(subblkpat) subblkpat ^= 3; //swap decoded pattern bits
be3492ec	if(ttblk == TT_8X4_TOP \|\| ttblk == TT_8X4_BOTTOM) ttblk = TT_8X4; if(ttblk == TT_4X8_RIGHT \|\| ttblk == TT_4X8_LEFT) ttblk = TT_4X8; }
2a2072fe	scale = 2 * mquant + ((v->pq == mquant) ? v->halfpq : 0);
be3492ec	// convert transforms like 8X4_TOP to generic TT and SUBBLKPAT if(ttblk == TT_8X4_TOP \|\| ttblk == TT_8X4_BOTTOM) { subblkpat = 2 - (ttblk == TT_8X4_TOP);
e9f2396e	ttblk = TT_8X4;
be3492ec	} if(ttblk == TT_4X8_RIGHT \|\| ttblk == TT_4X8_LEFT) { subblkpat = 2 - (ttblk == TT_4X8_LEFT);
e9f2396e	ttblk = TT_4X8;
be3492ec	} switch(ttblk) { case TT_8X8:
00a75000	pat = 0xF;
be3492ec	i = 0; last = 0; while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); i += skip; if(i > 63) break;
5a893969	idx = wmv1_scantable[0][i++];
be3492ec	block[idx] = value * scale;
0a45801f	if(!v->pquantizer) block[idx] += (block[idx] < 0) ? -mquant : mquant;
be3492ec	}
d2e45f33	if(!skip_block){ s->dsp.vc1_inv_trans_8x8(block); s->dsp.add_pixels_clamped(block, dst, linesize);
00a75000	if(apply_filter && cbp_top & 0xC) vc1_loop_filter(dst, 1, linesize, 8, mquant); if(apply_filter && cbp_left & 0xA) vc1_loop_filter(dst, linesize, 1, 8, mquant);
d2e45f33	}
be3492ec	break; case TT_4X4:
00a75000	pat = ~subblkpat & 0xF;
be3492ec	for(j = 0; j < 4; j++) { last = subblkpat & (1 << (3 - j)); i = 0;
87dfe848	off = (j & 1) * 4 + (j & 2) * 16;
be3492ec	while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); i += skip; if(i > 15) break;
a5c14fca	idx = ff_vc1_simple_progressive_4x4_zz[i++];
be3492ec	block[idx + off] = value * scale;
0a45801f	if(!v->pquantizer) block[idx + off] += (block[idx + off] < 0) ? -mquant : mquant;
be3492ec	}
00a75000	if(!(subblkpat & (1 << (3 - j))) && !skip_block){
d2e45f33	s->dsp.vc1_inv_trans_4x4(dst + (j&1)4 + (j&2)2*linesize, linesize, block + off);
00a75000	if(apply_filter && (j&2 ? pat & (1<<(j-2)) : (cbp_top & (1 << (j + 2))))) vc1_loop_filter(dst + (j&1)4 + (j&2)2linesize, 1, linesize, 4, mquant); if(apply_filter && (j&1 ? pat & (1<<(j-1)) : (cbp_left & (1 << (j + 1))))) vc1_loop_filter(dst + (j&1)4 + (j&2)2linesize, linesize, 1, 4, mquant); }
be3492ec	} break; case TT_8X4:
00a75000	pat = ~((subblkpat & 2)6 + (subblkpat & 1)3) & 0xF;
be3492ec	for(j = 0; j < 2; j++) { last = subblkpat & (1 << (1 - j)); i = 0; off = j * 32; while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); i += skip; if(i > 31) break;
750e37eb	idx = v->zz_8x4[i++]+off; block[idx] = value * scale;
0a45801f	if(!v->pquantizer)
750e37eb	block[idx] += (block[idx] < 0) ? -mquant : mquant;
be3492ec	}
00a75000	if(!(subblkpat & (1 << (1 - j))) && !skip_block){
d2e45f33	s->dsp.vc1_inv_trans_8x4(dst + j4linesize, linesize, block + off);
00a75000	if(apply_filter && j ? pat & 0x3 : (cbp_top & 0xC)) vc1_loop_filter(dst + j4linesize, 1, linesize, 8, mquant); if(apply_filter && cbp_left & (2 << j)) vc1_loop_filter(dst + j4linesize, linesize, 1, 4, mquant); }
be3492ec	} break; case TT_4X8:
00a75000	pat = ~(subblkpat*5) & 0xF;
be3492ec	for(j = 0; j < 2; j++) { last = subblkpat & (1 << (1 - j)); i = 0; off = j * 4; while (!last) { vc1_decode_ac_coeff(v, &last, &skip, &value, v->codingset2); i += skip; if(i > 31) break;
750e37eb	idx = v->zz_4x8[i++]+off; block[idx] = value * scale;
0a45801f	if(!v->pquantizer)
750e37eb	block[idx] += (block[idx] < 0) ? -mquant : mquant;
be3492ec	}
00a75000	if(!(subblkpat & (1 << (1 - j))) && !skip_block){
d2e45f33	s->dsp.vc1_inv_trans_4x8(dst + j*4, linesize, block + off);
00a75000	if(apply_filter && cbp_top & (2 << j)) vc1_loop_filter(dst + j4, 1, linesize, 4, mquant); if(apply_filter && j ? pat & 0x5 : (cbp_left & 0xA)) vc1_loop_filter(dst + j4, linesize, 1, 8, mquant); }
be3492ec	} break; }
00a75000	return pat;
7cc84d24	}
81169111	/** @} */ // Macroblock group
3e723368	static const int size_table [6] = { 0, 2, 3, 4, 5, 8 }; static const int offset_table[6] = { 0, 1, 3, 7, 15, 31 };
be3492ec
8da75fb2	/** Decode one P-frame MB (in Simple/Main profile) */
7e84f276	static int vc1_decode_p_mb(VC1Context *v)
7cc84d24	{ MpegEncContext s = &v->s; GetBitContext gb = &s->gb;
87dfe848	int i, j;
be3492ec	int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
7cc84d24	int cbp; /* cbp decoding stuff / int mqdiff, mquant; / MB quantization */
8a66a390	int ttmb = v->ttfrm; /* MB Transform type */
7cc84d24	int mb_has_coeffs = 1; /* last_flag / int dmv_x, dmv_y; / Differential MV components */
f4433de9	int index, index1; /* LUT indexes */
7cc84d24	int val, sign; /* temp values */
be3492ec	int first_block = 1; int dst_idx, off;
87dfe848	int skipped, fourmv;
00a75000	int block_cbp = 0, pat;
77298e99	int apply_loop_filter;
7cc84d24
8da75fb2	mquant = v->pq; /* Loosy initialization */
87dfe848	if (v->mv_type_is_raw) fourmv = get_bits1(gb); else fourmv = v->mv_type_mb_plane[mb_pos]; if (v->skip_is_raw) skipped = get_bits1(gb); else
0f7344aa	skipped = v->s.mbskip_table[mb_pos];
87dfe848
e4bf0302	s->dsp.clear_blocks(s->block[0]);
77298e99	apply_loop_filter = s->loop_filter && !(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY);
87dfe848	if (!fourmv) /* 1MV mode */
7cc84d24	{
87dfe848	if (!skipped)
7cc84d24	{ GET_MVDATA(dmv_x, dmv_y);
42cc17f9
1dc1ce64	if (s->mb_intra) { s->current_picture.motion_val[1][s->block_index[0]][0] = 0; s->current_picture.motion_val[1][s->block_index[0]][1] = 0; }
be3492ec	s->current_picture.mb_type[mb_pos] = s->mb_intra ? MB_TYPE_INTRA : MB_TYPE_16x16;
e4bf0302	vc1_pred_mv(s, 0, dmv_x, dmv_y, 1, v->range_x, v->range_y, v->mb_type[0]);
be3492ec
8da75fb2	/* FIXME Set DC val for inter block ? */
7cc84d24	if (s->mb_intra && !mb_has_coeffs) { GET_MQUANT();
5fc32c27	s->ac_pred = get_bits1(gb);
8da75fb2	cbp = 0;
7cc84d24	} else if (mb_has_coeffs) {
5fc32c27	if (s->mb_intra) s->ac_pred = get_bits1(gb);
10b9c374	cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
7cc84d24	GET_MQUANT(); } else { mquant = v->pq;
8da75fb2	cbp = 0;
7cc84d24	}
be3492ec	s->current_picture.qscale_table[mb_pos] = mquant;
7cc84d24
be3492ec	if (!v->ttmbf && !s->mb_intra && mb_has_coeffs)
a5c14fca	ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table,
be3492ec	VC1_TTMB_VLC_BITS, 2);
5df68893	if(!s->mb_intra) vc1_mc_1mv(v, 0);
be3492ec	dst_idx = 0;
7cc84d24	for (i=0; i<6; i++) {
be3492ec	s->dc_val[0][s->block_index[i]] = 0; dst_idx += i >> 2;
7cc84d24	val = ((cbp >> (5 - i)) & 1);
be3492ec	off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize);
e4bf0302	v->mb_type[0][s->block_index[i]] = s->mb_intra;
be3492ec	if(s->mb_intra) {
f26c2ef5	/* check if prediction blocks A and C are available */ v->a_avail = v->c_avail = 0;
d2779ecd	if(i == 2 \|\| i == 3 \|\| !s->first_slice_line)
e4bf0302	v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if(i == 1 \|\| i == 3 \|\| s->mb_x) v->c_avail = v->mb_type[0][s->block_index[i] - 1];
f26c2ef5
7e84f276	vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
138712fe	if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
5ce425f7	s->dsp.vc1_inv_trans_8x8(s->block[i]);
ffb9a8b1	if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
1a625dce	s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
87dfe848	if(v->pq >= 9 && v->overlap) { if(v->c_avail)
61f5b14a	s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
b6fa8993	if(v->a_avail)
61f5b14a	s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
87dfe848	}
77298e99	if(apply_loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){
00a75000	int left_cbp, top_cbp; if(i & 4){ left_cbp = v->cbp[s->mb_x - 1] >> (i * 4); top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4); }else{
820089cb	left_cbp = (i & 1) ? (cbp >> ((i-1)4)) : (v->cbp[s->mb_x - 1] >> ((i+1)4)); top_cbp = (i & 2) ? (cbp >> ((i-2)4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)4));
00a75000	} if(left_cbp & 0xC) vc1_loop_filter(s->dest[dst_idx] + off, 1, i & 4 ? s->uvlinesize : s->linesize, 8, mquant); if(top_cbp & 0xA) vc1_loop_filter(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, 1, 8, mquant); } block_cbp \|= 0xF << (i << 2);
be3492ec	} else if(val) {
00a75000	int left_cbp = 0, top_cbp = 0, filter = 0;
77298e99	if(apply_loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){
00a75000	filter = 1; if(i & 4){ left_cbp = v->cbp[s->mb_x - 1] >> (i * 4); top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4); }else{
820089cb	left_cbp = (i & 1) ? (cbp >> ((i-1)4)) : (v->cbp[s->mb_x - 1] >> ((i+1)4)); top_cbp = (i & 2) ? (cbp >> ((i-2)4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)4));
00a75000	}
820089cb	if(left_cbp & 0xC) vc1_loop_filter(s->dest[dst_idx] + off, 1, i & 4 ? s->uvlinesize : s->linesize, 8, mquant); if(top_cbp & 0xA) vc1_loop_filter(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, 1, 8, mquant);
00a75000	} pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), filter, left_cbp, top_cbp); block_cbp \|= pat << (i << 2);
be3492ec	if(!v->ttmbf && ttmb < 8) ttmb = -1; first_block = 0;
7cc84d24	} } } else //Skipped {
be3492ec	s->mb_intra = 0;
92ad0d9d	for(i = 0; i < 6; i++) { v->mb_type[0][s->block_index[i]] = 0; s->dc_val[0][s->block_index[i]] = 0; }
be3492ec	s->current_picture.mb_type[mb_pos] = MB_TYPE_SKIP;
e4bf0302	s->current_picture.qscale_table[mb_pos] = 0; vc1_pred_mv(s, 0, 0, 0, 1, v->range_x, v->range_y, v->mb_type[0]);
5df68893	vc1_mc_1mv(v, 0);
7cc84d24	return 0; } } //1MV mode else //4MV mode
e4bf0302	{
87dfe848	if (!skipped /* unskipped MB */)
7cc84d24	{
e4bf0302	int intra_count = 0, coded_inter = 0; int is_intra[6], is_coded[6];
7cc84d24	/* Get CBPCY */
10b9c374	cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2);
e4bf0302	for (i=0; i<6; i++)
7cc84d24	{ val = ((cbp >> (5 - i)) & 1);
e4bf0302	s->dc_val[0][s->block_index[i]] = 0; s->mb_intra = 0; if(i < 4) { dmv_x = dmv_y = 0; s->mb_intra = 0; mb_has_coeffs = 0; if(val) { GET_MVDATA(dmv_x, dmv_y); } vc1_pred_mv(s, i, dmv_x, dmv_y, 0, v->range_x, v->range_y, v->mb_type[0]); if(!s->mb_intra) vc1_mc_4mv_luma(v, i); intra_count += s->mb_intra; is_intra[i] = s->mb_intra; is_coded[i] = mb_has_coeffs; } if(i&4){ is_intra[i] = (intra_count >= 3); is_coded[i] = val;
7cc84d24	}
e4bf0302	if(i == 4) vc1_mc_4mv_chroma(v); v->mb_type[0][s->block_index[i]] = is_intra[i]; if(!coded_inter) coded_inter = !is_intra[i] & is_coded[i];
be3492ec	}
fdb59832	// if there are no coded blocks then don't do anything more
c39e3c6f	if(!intra_count && !coded_inter) return 0;
e4bf0302	dst_idx = 0; GET_MQUANT(); s->current_picture.qscale_table[mb_pos] = mquant; /* test if block is intra and has pred */ { int intrapred = 0; for(i=0; i<6; i++) if(is_intra[i]) {
d2779ecd	if(((!s->first_slice_line \|\| (i==2 \|\| i==3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]]) \|\| ((s->mb_x \|\| (i==1 \|\| i==3)) && v->mb_type[0][s->block_index[i] - 1])) {
e4bf0302	intrapred = 1; break; } }
5fc32c27	if(intrapred)s->ac_pred = get_bits1(gb);
e4bf0302	else s->ac_pred = 0; } if (!v->ttmbf && coded_inter)
a5c14fca	ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
e4bf0302	for (i=0; i<6; i++) { dst_idx += i >> 2; off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); s->mb_intra = is_intra[i]; if (is_intra[i]) { /* check if prediction blocks A and C are available */ v->a_avail = v->c_avail = 0;
d2779ecd	if(i == 2 \|\| i == 3 \|\| !s->first_slice_line)
e4bf0302	v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if(i == 1 \|\| i == 3 \|\| s->mb_x) v->c_avail = v->mb_type[0][s->block_index[i] - 1];
8da75fb2
e4bf0302	vc1_decode_intra_block(v, s->block[i], i, is_coded[i], mquant, (i&4)?v->codingset2:v->codingset);
138712fe	if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
5ce425f7	s->dsp.vc1_inv_trans_8x8(s->block[i]);
ffb9a8b1	if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
1a625dce	s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
e4bf0302	if(v->pq >= 9 && v->overlap) { if(v->c_avail)
61f5b14a	s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
b6fa8993	if(v->a_avail)
61f5b14a	s->dsp.vc1_v_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
be3492ec	}
00a75000	if(v->s.loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){ int left_cbp, top_cbp; if(i & 4){ left_cbp = v->cbp[s->mb_x - 1] >> (i * 4); top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4); }else{
820089cb	left_cbp = (i & 1) ? (cbp >> ((i-1)4)) : (v->cbp[s->mb_x - 1] >> ((i+1)4)); top_cbp = (i & 2) ? (cbp >> ((i-2)4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)4));
00a75000	} if(left_cbp & 0xC) vc1_loop_filter(s->dest[dst_idx] + off, 1, i & 4 ? s->uvlinesize : s->linesize, 8, mquant); if(top_cbp & 0xA) vc1_loop_filter(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, 1, 8, mquant); } block_cbp \|= 0xF << (i << 2);
e4bf0302	} else if(is_coded[i]) {
00a75000	int left_cbp = 0, top_cbp = 0, filter = 0; if(v->s.loop_filter && s->mb_x && s->mb_x != (s->mb_width - 1) && s->mb_y && s->mb_y != (s->mb_height - 1)){ filter = 1; if(i & 4){ left_cbp = v->cbp[s->mb_x - 1] >> (i * 4); top_cbp = v->cbp[s->mb_x - s->mb_stride] >> (i * 4); }else{
820089cb	left_cbp = (i & 1) ? (cbp >> ((i-1)4)) : (v->cbp[s->mb_x - 1] >> ((i+1)4)); top_cbp = (i & 2) ? (cbp >> ((i-2)4)) : (v->cbp[s->mb_x - s->mb_stride] >> ((i+2)4));
00a75000	}
820089cb	if(left_cbp & 0xC) vc1_loop_filter(s->dest[dst_idx] + off, 1, i & 4 ? s->uvlinesize : s->linesize, 8, mquant); if(top_cbp & 0xA) vc1_loop_filter(s->dest[dst_idx] + off, i & 4 ? s->uvlinesize : s->linesize, 1, 8, mquant);
00a75000	} pat = vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), filter, left_cbp, top_cbp); block_cbp \|= pat << (i << 2);
e4bf0302	if(!v->ttmbf && ttmb < 8) ttmb = -1; first_block = 0;
be3492ec	}
7cc84d24	}
00a75000	return 0;
7cc84d24	} else //Skipped MB {
ef6cc8ce	s->mb_intra = 0;
c39e3c6f	s->current_picture.qscale_table[mb_pos] = 0;
92ad0d9d	for (i=0; i<6; i++) { v->mb_type[0][s->block_index[i]] = 0; s->dc_val[0][s->block_index[i]] = 0; }
7cc84d24	for (i=0; i<4; i++) {
e4bf0302	vc1_pred_mv(s, i, 0, 0, 0, v->range_x, v->range_y, v->mb_type[0]); vc1_mc_4mv_luma(v, i);
7cc84d24	}
e4bf0302	vc1_mc_4mv_chroma(v); s->current_picture.qscale_table[mb_pos] = 0;
7cc84d24	return 0; } }
00a75000	v->cbp[s->mb_x] = block_cbp;
42cc17f9
7cc84d24	/* Should never happen */ return -1; }
5df68893	/** Decode one B-frame MB (in Main profile) / static void vc1_decode_b_mb(VC1Context v) { MpegEncContext s = &v->s; GetBitContext gb = &s->gb; int i, j; int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
fb2d9140	int cbp = 0; /* cbp decoding stuff */
5df68893	int mqdiff, mquant; /* MB quantization / int ttmb = v->ttfrm; / MB Transform type / int mb_has_coeffs = 0; / last_flag */
f4433de9	int index, index1; /* LUT indexes */
5df68893	int val, sign; /* temp values */ int first_block = 1; int dst_idx, off; int skipped, direct; int dmv_x[2], dmv_y[2];
d1d28ddf	int bmvtype = BMV_TYPE_BACKWARD;
5df68893	mquant = v->pq; /* Loosy initialization */ s->mb_intra = 0; if (v->dmb_is_raw) direct = get_bits1(gb); else direct = v->direct_mb_plane[mb_pos]; if (v->skip_is_raw) skipped = get_bits1(gb); else skipped = v->s.mbskip_table[mb_pos]; s->dsp.clear_blocks(s->block[0]); dmv_x[0] = dmv_x[1] = dmv_y[0] = dmv_y[1] = 0; for(i = 0; i < 6; i++) { v->mb_type[0][s->block_index[i]] = 0; s->dc_val[0][s->block_index[i]] = 0; } s->current_picture.qscale_table[mb_pos] = 0; if (!direct) { if (!skipped) { GET_MVDATA(dmv_x[0], dmv_y[0]);
fb2d9140	dmv_x[1] = dmv_x[0]; dmv_y[1] = dmv_y[0];
5df68893	} if(skipped \|\| !s->mb_intra) { bmvtype = decode012(gb); switch(bmvtype) { case 0: bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_BACKWARD : BMV_TYPE_FORWARD; break; case 1: bmvtype = (v->bfraction >= (B_FRACTION_DEN/2)) ? BMV_TYPE_FORWARD : BMV_TYPE_BACKWARD; break; case 2: bmvtype = BMV_TYPE_INTERPOLATED;
162f412d	dmv_x[0] = dmv_y[0] = 0;
5df68893	} } }
1dc1ce64	for(i = 0; i < 6; i++) v->mb_type[0][s->block_index[i]] = s->mb_intra;
5df68893	if (skipped) {
1dc1ce64	if(direct) bmvtype = BMV_TYPE_INTERPOLATED; vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
5df68893	vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); return; } if (direct) { cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); GET_MQUANT();
fb2d9140	s->mb_intra = 0; mb_has_coeffs = 0;
5df68893	s->current_picture.qscale_table[mb_pos] = mquant;
fb2d9140	if(!v->ttmbf)
a5c14fca	ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
1dc1ce64	dmv_x[0] = dmv_y[0] = dmv_x[1] = dmv_y[1] = 0; vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
5df68893	vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); } else { if(!mb_has_coeffs && !s->mb_intra) { /* no coded blocks - effectively skipped */
1dc1ce64	vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
5df68893	vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); return; } if(s->mb_intra && !mb_has_coeffs) { GET_MQUANT(); s->current_picture.qscale_table[mb_pos] = mquant; s->ac_pred = get_bits1(gb); cbp = 0;
1dc1ce64	vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
5df68893	} else { if(bmvtype == BMV_TYPE_INTERPOLATED) {
162f412d	GET_MVDATA(dmv_x[0], dmv_y[0]);
5df68893	if(!mb_has_coeffs) { /* interpolated skipped block */
1dc1ce64	vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype);
5df68893	vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype); return; } }
1dc1ce64	vc1_pred_b_mv(v, dmv_x, dmv_y, direct, bmvtype); if(!s->mb_intra) {
5df68893	vc1_b_mc(v, dmv_x, dmv_y, direct, bmvtype);
1dc1ce64	}
5df68893	if(s->mb_intra) s->ac_pred = get_bits1(gb); cbp = get_vlc2(&v->s.gb, v->cbpcy_vlc->table, VC1_CBPCY_P_VLC_BITS, 2); GET_MQUANT(); s->current_picture.qscale_table[mb_pos] = mquant; if(!v->ttmbf && !s->mb_intra && mb_has_coeffs)
a5c14fca	ttmb = get_vlc2(gb, ff_vc1_ttmb_vlc[v->tt_index].table, VC1_TTMB_VLC_BITS, 2);
5df68893	} } dst_idx = 0; for (i=0; i<6; i++) { s->dc_val[0][s->block_index[i]] = 0; dst_idx += i >> 2; val = ((cbp >> (5 - i)) & 1); off = (i & 4) ? 0 : ((i & 1) * 8 + (i & 2) * 4 * s->linesize); v->mb_type[0][s->block_index[i]] = s->mb_intra; if(s->mb_intra) { /* check if prediction blocks A and C are available */ v->a_avail = v->c_avail = 0; if(i == 2 \|\| i == 3 \|\| !s->first_slice_line) v->a_avail = v->mb_type[0][s->block_index[i] - s->block_wrap[i]]; if(i == 1 \|\| i == 3 \|\| s->mb_x) v->c_avail = v->mb_type[0][s->block_index[i] - 1]; vc1_decode_intra_block(v, s->block[i], i, val, mquant, (i&4)?v->codingset2:v->codingset);
138712fe	if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
5ce425f7	s->dsp.vc1_inv_trans_8x8(s->block[i]);
ffb9a8b1	if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
1a625dce	s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
5df68893	} else if(val) {
00a75000	vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block, s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize, (i&4) && (s->flags & CODEC_FLAG_GRAY), 0, 0, 0);
5df68893	if(!v->ttmbf && ttmb < 8) ttmb = -1; first_block = 0; } } }
be3492ec	/** Decode blocks of I-frame
8da75fb2	*/
be3492ec	static void vc1_decode_i_blocks(VC1Context *v)
7cc84d24	{
65c7bb9e	int k, j;
8da75fb2	MpegEncContext *s = &v->s;
be3492ec	int cbp, val; uint8_t *coded_val; int mb_pos;
42cc17f9
be3492ec	/* select codingmode used for VLC tables selection */ switch(v->y_ac_table_index){ case 0: v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; break; case 1: v->codingset = CS_HIGH_MOT_INTRA; break; case 2: v->codingset = CS_MID_RATE_INTRA; break; } switch(v->c_ac_table_index){ case 0: v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; break; case 1: v->codingset2 = CS_HIGH_MOT_INTER; break; case 2: v->codingset2 = CS_MID_RATE_INTER; break; }
42cc17f9
be3492ec	/* Set DC scale - y and c use the same */ s->y_dc_scale = s->y_dc_scale_table[v->pq]; s->c_dc_scale = s->c_dc_scale_table[v->pq]; //do frame decode s->mb_x = s->mb_y = 0; s->mb_intra = 1;
d2779ecd	s->first_slice_line = 1;
be3492ec	for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) { ff_init_block_index(s); ff_update_block_index(s); s->dsp.clear_blocks(s->block[0]); mb_pos = s->mb_x + s->mb_y * s->mb_width; s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA; s->current_picture.qscale_table[mb_pos] = v->pq;
1884a48b	s->current_picture.motion_val[1][s->block_index[0]][0] = 0; s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
be3492ec	// do actual MB decoding and displaying cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
5fc32c27	v->s.ac_pred = get_bits1(&v->s.gb);
be3492ec	for(k = 0; k < 6; k++) { val = ((cbp >> (5 - k)) & 1);
f26c2ef5
be3492ec	if (k < 4) { int pred = vc1_coded_block_pred(&v->s, k, &coded_val); val = val ^ pred; *coded_val = val; } cbp \|= val << (5 - k);
8da75fb2
be3492ec	vc1_decode_i_block(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2);
42cc17f9
5ce425f7	s->dsp.vc1_inv_trans_8x8(s->block[k]);
be3492ec	if(v->pq >= 9 && v->overlap) {
65c7bb9e	for(j = 0; j < 64; j++) s->block[k][j] += 128;
be3492ec	}
8da75fb2	}
be3492ec	vc1_put_block(v, s->block);
d1d28ddf	if(v->pq >= 9 && v->overlap) {
f26c2ef5	if(s->mb_x) {
61f5b14a	s->dsp.vc1_h_overlap(s->dest[0], s->linesize); s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
138712fe	if(!(s->flags & CODEC_FLAG_GRAY)) {
61f5b14a	s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize); s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
138712fe	}
f26c2ef5	}
61f5b14a	s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize); s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
b6fa8993	if(!s->first_slice_line) {
61f5b14a	s->dsp.vc1_v_overlap(s->dest[0], s->linesize); s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
b6fa8993	if(!(s->flags & CODEC_FLAG_GRAY)) {
61f5b14a	s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize); s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
b6fa8993	} }
61f5b14a	s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize); s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
f26c2ef5	}
00a75000	if(v->s.loop_filter) vc1_loop_filter_iblk(s, s->current_picture.qscale_table[mb_pos]);
8da75fb2
be3492ec	if(get_bits_count(&s->gb) > v->bits) {
2a898132	ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END\|DC_END\|MV_END));
be3492ec	av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits); return; } } ff_draw_horiz_band(s, s->mb_y * 16, 16);
d2779ecd	s->first_slice_line = 0;
7cc84d24	}
2a898132	ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END\|DC_END\|MV_END));
7cc84d24	}
3c275f6d	/** Decode blocks of I-frame for advanced profile / static void vc1_decode_i_blocks_adv(VC1Context v) { int k, j; MpegEncContext s = &v->s; int cbp, val; uint8_t coded_val; int mb_pos; int mquant = v->pq; int mqdiff; int overlap; GetBitContext gb = &s->gb; / select codingmode used for VLC tables selection / switch(v->y_ac_table_index){ case 0: v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; break; case 1: v->codingset = CS_HIGH_MOT_INTRA; break; case 2: v->codingset = CS_MID_RATE_INTRA; break; } switch(v->c_ac_table_index){ case 0: v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; break; case 1: v->codingset2 = CS_HIGH_MOT_INTER; break; case 2: v->codingset2 = CS_MID_RATE_INTER; break; } //do frame decode s->mb_x = s->mb_y = 0; s->mb_intra = 1; s->first_slice_line = 1; for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) { ff_init_block_index(s); ff_update_block_index(s); s->dsp.clear_blocks(s->block[0]); mb_pos = s->mb_x + s->mb_y s->mb_stride; s->current_picture.mb_type[mb_pos] = MB_TYPE_INTRA;
1884a48b	s->current_picture.motion_val[1][s->block_index[0]][0] = 0; s->current_picture.motion_val[1][s->block_index[0]][1] = 0;
3c275f6d	// do actual MB decoding and displaying cbp = get_vlc2(&v->s.gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2); if(v->acpred_is_raw)
5fc32c27	v->s.ac_pred = get_bits1(&v->s.gb);
3c275f6d	else v->s.ac_pred = v->acpred_plane[mb_pos]; if(v->condover == CONDOVER_SELECT) { if(v->overflg_is_raw)
5fc32c27	overlap = get_bits1(&v->s.gb);
3c275f6d	else overlap = v->over_flags_plane[mb_pos]; } else overlap = (v->condover == CONDOVER_ALL); GET_MQUANT(); s->current_picture.qscale_table[mb_pos] = mquant;
b8ce8f15	/* Set DC scale - y and c use the same */ s->y_dc_scale = s->y_dc_scale_table[mquant]; s->c_dc_scale = s->c_dc_scale_table[mquant];
3c275f6d	for(k = 0; k < 6; k++) { val = ((cbp >> (5 - k)) & 1); if (k < 4) { int pred = vc1_coded_block_pred(&v->s, k, &coded_val); val = val ^ pred; *coded_val = val; } cbp \|= val << (5 - k); v->a_avail = !s->first_slice_line \|\| (k==2 \|\| k==3); v->c_avail = !!s->mb_x \|\| (k==1 \|\| k==3); vc1_decode_i_block_adv(v, s->block[k], k, val, (k<4)? v->codingset : v->codingset2, mquant); s->dsp.vc1_inv_trans_8x8(s->block[k]); for(j = 0; j < 64; j++) s->block[k][j] += 128; } vc1_put_block(v, s->block); if(overlap) { if(s->mb_x) {
61f5b14a	s->dsp.vc1_h_overlap(s->dest[0], s->linesize); s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize, s->linesize);
3c275f6d	if(!(s->flags & CODEC_FLAG_GRAY)) {
61f5b14a	s->dsp.vc1_h_overlap(s->dest[1], s->uvlinesize); s->dsp.vc1_h_overlap(s->dest[2], s->uvlinesize);
3c275f6d	} }
61f5b14a	s->dsp.vc1_h_overlap(s->dest[0] + 8, s->linesize); s->dsp.vc1_h_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
b6fa8993	if(!s->first_slice_line) {
61f5b14a	s->dsp.vc1_v_overlap(s->dest[0], s->linesize); s->dsp.vc1_v_overlap(s->dest[0] + 8, s->linesize);
b6fa8993	if(!(s->flags & CODEC_FLAG_GRAY)) {
61f5b14a	s->dsp.vc1_v_overlap(s->dest[1], s->uvlinesize); s->dsp.vc1_v_overlap(s->dest[2], s->uvlinesize);
b6fa8993	} }
61f5b14a	s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize, s->linesize); s->dsp.vc1_v_overlap(s->dest[0] + 8 * s->linesize + 8, s->linesize);
3c275f6d	}
00a75000	if(v->s.loop_filter) vc1_loop_filter_iblk(s, s->current_picture.qscale_table[mb_pos]);
3c275f6d	if(get_bits_count(&s->gb) > v->bits) {
2a898132	ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END\|DC_END\|MV_END));
3c275f6d	av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i\n", get_bits_count(&s->gb), v->bits); return; } } ff_draw_horiz_band(s, s->mb_y * 16, 16); s->first_slice_line = 0; }
2a898132	ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END\|DC_END\|MV_END));
3c275f6d	}
be3492ec	static void vc1_decode_p_blocks(VC1Context *v)
7cc84d24	{ MpegEncContext *s = &v->s;
42cc17f9
be3492ec	/* select codingmode used for VLC tables selection */ switch(v->c_ac_table_index){ case 0: v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; break; case 1: v->codingset = CS_HIGH_MOT_INTRA; break; case 2: v->codingset = CS_MID_RATE_INTRA; break;
7cc84d24	}
42cc17f9
be3492ec	switch(v->c_ac_table_index){ case 0: v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; break; case 1: v->codingset2 = CS_HIGH_MOT_INTER; break; case 2: v->codingset2 = CS_MID_RATE_INTER; break;
7cc84d24	}
be3492ec	s->first_slice_line = 1;
00a75000	memset(v->cbp_base, 0, sizeof(v->cbp_base[0])2s->mb_stride);
be3492ec	for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) { ff_init_block_index(s); ff_update_block_index(s); s->dsp.clear_blocks(s->block[0]);
7e84f276	vc1_decode_p_mb(v);
be3492ec	if(get_bits_count(&s->gb) > v->bits \|\| get_bits_count(&s->gb) < 0) {
2a898132	ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END\|DC_END\|MV_END));
be3492ec	av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y); return;
7cc84d24	} }
00a75000	memmove(v->cbp_base, v->cbp, sizeof(v->cbp_base[0])*s->mb_stride);
be3492ec	ff_draw_horiz_band(s, s->mb_y * 16, 16); s->first_slice_line = 0;
7cc84d24	}
2a898132	ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END\|DC_END\|MV_END));
7cc84d24	}
21aa398f
5df68893	static void vc1_decode_b_blocks(VC1Context v) { MpegEncContext s = &v->s; /* select codingmode used for VLC tables selection */ switch(v->c_ac_table_index){ case 0: v->codingset = (v->pqindex <= 8) ? CS_HIGH_RATE_INTRA : CS_LOW_MOT_INTRA; break; case 1: v->codingset = CS_HIGH_MOT_INTRA; break; case 2: v->codingset = CS_MID_RATE_INTRA; break; } switch(v->c_ac_table_index){ case 0: v->codingset2 = (v->pqindex <= 8) ? CS_HIGH_RATE_INTER : CS_LOW_MOT_INTER; break; case 1: v->codingset2 = CS_HIGH_MOT_INTER; break; case 2: v->codingset2 = CS_MID_RATE_INTER; break; } s->first_slice_line = 1; for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { for(s->mb_x = 0; s->mb_x < s->mb_width; s->mb_x++) { ff_init_block_index(s); ff_update_block_index(s); s->dsp.clear_blocks(s->block[0]); vc1_decode_b_mb(v); if(get_bits_count(&s->gb) > v->bits \|\| get_bits_count(&s->gb) < 0) {
2a898132	ff_er_add_slice(s, 0, 0, s->mb_x, s->mb_y, (AC_END\|DC_END\|MV_END));
5df68893	av_log(s->avctx, AV_LOG_ERROR, "Bits overconsumption: %i > %i at %ix%i\n", get_bits_count(&s->gb), v->bits,s->mb_x,s->mb_y); return; }
00a75000	if(v->s.loop_filter) vc1_loop_filter_iblk(s, s->current_picture.qscale_table[s->mb_x + s->mb_y *s->mb_stride]);
5df68893	} ff_draw_horiz_band(s, s->mb_y * 16, 16); s->first_slice_line = 0; }
2a898132	ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END\|DC_END\|MV_END));
5df68893	}
3c275f6d	static void vc1_decode_skip_blocks(VC1Context v) { MpegEncContext s = &v->s; ff_er_add_slice(s, 0, 0, s->mb_width - 1, s->mb_height - 1, (AC_END\|DC_END\|MV_END)); s->first_slice_line = 1; for(s->mb_y = 0; s->mb_y < s->mb_height; s->mb_y++) { s->mb_x = 0; ff_init_block_index(s); ff_update_block_index(s); memcpy(s->dest[0], s->last_picture.data[0] + s->mb_y * 16 * s->linesize, s->linesize * 16); memcpy(s->dest[1], s->last_picture.data[1] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8); memcpy(s->dest[2], s->last_picture.data[2] + s->mb_y * 8 * s->uvlinesize, s->uvlinesize * 8); ff_draw_horiz_band(s, s->mb_y * 16, 16); s->first_slice_line = 0; }
9701840b	s->pict_type = FF_P_TYPE;
3c275f6d	}
be3492ec	static void vc1_decode_blocks(VC1Context *v)
21aa398f	{
be3492ec	v->s.esc3_level_length = 0;
9abc7e0f	if(v->x8_type){ ff_intrax8_decode_picture(&v->x8, 2v->pq+v->halfpq, v->pq(!v->pquantizer) );
732cb5fd	}else{
e5540b3f
dd2111bd	switch(v->s.pict_type) {
9701840b	case FF_I_TYPE:
b024824b	if(v->profile == PROFILE_ADVANCED) vc1_decode_i_blocks_adv(v); else vc1_decode_i_blocks(v);
dd2111bd	break;
9701840b	case FF_P_TYPE:
dd2111bd	if(v->p_frame_skipped) vc1_decode_skip_blocks(v); else vc1_decode_p_blocks(v); break;
9701840b	case FF_B_TYPE:
dd2111bd	if(v->bi_type){ if(v->profile == PROFILE_ADVANCED) vc1_decode_i_blocks_adv(v); else vc1_decode_i_blocks(v); }else vc1_decode_b_blocks(v); break; }
732cb5fd	}
21aa398f	}
be3492ec
77ccd3ba	/** Find VC-1 marker in buffer * @return position where next marker starts or end of buffer if no marker found */
60b6dbe7	static av_always_inline const uint8_t* find_next_marker(const uint8_t src, const uint8_t end)
77ccd3ba	{ uint32_t mrk = 0xFFFFFFFF; if(end-src < 4) return end; while(src < end){ mrk = (mrk << 8) \| *src++; if(IS_MARKER(mrk)) return src-4; } return end; }
60b6dbe7	static av_always_inline int vc1_unescape_buffer(const uint8_t src, int size, uint8_t dst)
77ccd3ba	{ int dsize = 0, i; if(size < 4){ for(dsize = 0; dsize < size; dsize++) dst++ = src++; return size; } for(i = 0; i < size; i++, src++) { if(src[0] == 3 && i >= 2 && !src[-1] && !src[-2] && i < size-1 && src[1] < 4) { dst[dsize++] = src[1]; src++; i++; } else dst[dsize++] = *src; } return dsize; }
21aa398f
10b9c374	/** Initialize a VC1/WMV3 decoder * @todo TODO: Handle VC-1 IDUs (Transport level?)
2ce151f8	* @todo TODO: Decypher remaining bits in extra_data */
98a6fff9	static av_cold int vc1_decode_init(AVCodecContext *avctx)
21aa398f	{
10b9c374	VC1Context *v = avctx->priv_data;
0d33db8a	MpegEncContext *s = &v->s;
21aa398f	GetBitContext gb; if (!avctx->extradata_size \|\| !avctx->extradata) return -1;
138712fe	if (!(avctx->flags & CODEC_FLAG_GRAY)) avctx->pix_fmt = PIX_FMT_YUV420P; else avctx->pix_fmt = PIX_FMT_GRAY8;
0d33db8a	v->s.avctx = avctx;
87dfe848	avctx->flags \|= CODEC_FLAG_EMU_EDGE; v->s.flags \|= CODEC_FLAG_EMU_EDGE;
21aa398f
9abc7e0f	if(avctx->idct_algo==FF_IDCT_AUTO){ avctx->idct_algo=FF_IDCT_WMV2; }
0d33db8a	if(ff_h263_decode_init(avctx) < 0) return -1;
10b9c374	if (vc1_init_common(v) < 0) return -1;
21aa398f
e5540b3f	avctx->coded_width = avctx->width; avctx->coded_height = avctx->height;
21aa398f	if (avctx->codec_id == CODEC_ID_WMV3) { int count = 0;
0d33db8a	// looks like WMV3 has a sequence header stored in the extradata // advanced sequence header may be before the first frame // the last byte of the extradata is a version number, 1 for the // samples we can decode
21aa398f
7cc84d24	init_get_bits(&gb, avctx->extradata, avctx->extradata_size*8);
42cc17f9
7cc84d24	if (decode_sequence_header(avctx, &gb) < 0) return -1;
21aa398f
0d33db8a	count = avctx->extradata_size*8 - get_bits_count(&gb); if (count>0) { av_log(avctx, AV_LOG_INFO, "Extra data: %i bits left, value: %X\n", count, get_bits(&gb, count)); }
7cc84d24	else if (count < 0)
0d33db8a	{ av_log(avctx, AV_LOG_INFO, "Read %i bits in overflow\n", -count); }
3c275f6d	} else { // VC1/WVC1
60b6dbe7	const uint8_t start = avctx->extradata; uint8_t end = avctx->extradata + avctx->extradata_size; const uint8_t *next; int size, buf2_size;
77ccd3ba	uint8_t *buf2 = NULL;
5e534865	int seq_initialized = 0, ep_initialized = 0;
3c275f6d	if(avctx->extradata_size < 16) {
77ccd3ba	av_log(avctx, AV_LOG_ERROR, "Extradata size too small: %i\n", avctx->extradata_size);
3c275f6d	return -1; }
77ccd3ba	buf2 = av_mallocz(avctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); if(start[0]) start++; // in WVC1 extradata first byte is its size next = start; for(; next < end; start = next){ next = find_next_marker(start + 4, end); size = next - start - 4; if(size <= 0) continue; buf2_size = vc1_unescape_buffer(start + 4, size, buf2); init_get_bits(&gb, buf2, buf2_size * 8); switch(AV_RB32(start)){ case VC1_CODE_SEQHDR: if(decode_sequence_header(avctx, &gb) < 0){ av_free(buf2); return -1; }
5e534865	seq_initialized = 1;
77ccd3ba	break; case VC1_CODE_ENTRYPOINT: if(decode_entry_point(avctx, &gb) < 0){ av_free(buf2); return -1; }
5e534865	ep_initialized = 1;
3c275f6d	break; } }
77ccd3ba	av_free(buf2);
5e534865	if(!seq_initialized \|\| !ep_initialized){
77ccd3ba	av_log(avctx, AV_LOG_ERROR, "Incomplete extradata\n"); return -1; }
21aa398f	}
0d33db8a	avctx->has_b_frames= !!(avctx->max_b_frames);
f9942ba9	s->low_delay = !avctx->has_b_frames;
21aa398f
0d33db8a	s->mb_width = (avctx->coded_width+15)>>4; s->mb_height = (avctx->coded_height+15)>>4;
21aa398f	/* Allocate mb bitplanes */
87dfe848	v->mv_type_mb_plane = av_malloc(s->mb_stride * s->mb_height);
5df68893	v->direct_mb_plane = av_malloc(s->mb_stride * s->mb_height);
3c275f6d	v->acpred_plane = av_malloc(s->mb_stride * s->mb_height); v->over_flags_plane = av_malloc(s->mb_stride * s->mb_height);
e5540b3f
00a75000	v->cbp_base = av_malloc(sizeof(v->cbp_base[0]) * 2 * s->mb_stride); v->cbp = v->cbp_base + s->mb_stride;
e4bf0302	/* allocate block type info in that way so it could be used with s->block_index[] / v->mb_type_base = av_malloc(s->b8_stride (s->mb_height * 2 + 1) + s->mb_stride * (s->mb_height + 1) * 2); v->mb_type[0] = v->mb_type_base + s->b8_stride + 1; v->mb_type[1] = v->mb_type_base + s->b8_stride * (s->mb_height * 2 + 1) + s->mb_stride + 1; v->mb_type[2] = v->mb_type[1] + s->mb_stride * (s->mb_height + 1);
be3492ec	/* Init coded blocks info */
7cc84d24	if (v->profile == PROFILE_ADVANCED)
21aa398f	{
87dfe848	// if (alloc_bitplane(&v->over_flags_plane, s->mb_width, s->mb_height) < 0) // return -1; // if (alloc_bitplane(&v->ac_pred_plane, s->mb_width, s->mb_height) < 0) // return -1;
21aa398f	}
9abc7e0f	ff_intrax8_common_init(&v->x8,s);
21aa398f	return 0;
be3492ec	}
21aa398f
10b9c374	/** Decode a VC1/WMV3 frame * @todo TODO: Handle VC-1 IDUs (Transport level?)
2ce151f8	*/
10b9c374	static int vc1_decode_frame(AVCodecContext *avctx,
21aa398f	void data, int data_size,
14ff144c	const uint8_t *buf, int buf_size)
21aa398f	{
10b9c374	VC1Context *v = avctx->priv_data;
0d33db8a	MpegEncContext *s = &v->s;
21aa398f	AVFrame *pict = data;
3c275f6d	uint8_t *buf2 = NULL;
4daa41c4	const uint8_t *buf_start = buf;
0d33db8a	/* no supplementary picture / if (buf_size == 0) { / special case for last picture / if (s->low_delay==0 && s->next_picture_ptr) { pict= (AVFrame)s->next_picture_ptr; s->next_picture_ptr= NULL; *data_size = sizeof(AVFrame); } return 0; }
755bfeab	/* We need to set current_picture_ptr before reading the header,
c294d7c6	* otherwise we cannot store anything in there. */
0d33db8a	if(s->current_picture_ptr==NULL \|\| s->current_picture_ptr->data[0]){
be3492ec	int i= ff_find_unused_picture(s, 0); s->current_picture_ptr= &s->picture[i];
0d33db8a	}
c5b42f4a	if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU){ if (v->profile < PROFILE_ADVANCED) avctx->pix_fmt = PIX_FMT_VDPAU_WMV3; else avctx->pix_fmt = PIX_FMT_VDPAU_VC1; }
77ccd3ba	//for advanced profile we may need to parse and unescape data
3c275f6d	if (avctx->codec_id == CODEC_ID_VC1) {
77ccd3ba	int buf_size2 = 0; buf2 = av_mallocz(buf_size + FF_INPUT_BUFFER_PADDING_SIZE); if(IS_MARKER(AV_RB32(buf))){ /* frame starts with marker and needs to be parsed */
14ff144c	const uint8_t start, end, *next;
77ccd3ba	int size; next = buf; for(start = buf, end = buf + buf_size; next < end; start = next){ next = find_next_marker(start + 4, end); size = next - start - 4; if(size <= 0) continue; switch(AV_RB32(start)){ case VC1_CODE_FRAME:
c5b42f4a	if (s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
4daa41c4	buf_start = start;
77ccd3ba	buf_size2 = vc1_unescape_buffer(start + 4, size, buf2); break; case VC1_CODE_ENTRYPOINT: /* it should be before frame data / buf_size2 = vc1_unescape_buffer(start + 4, size, buf2); init_get_bits(&s->gb, buf2, buf_size28); decode_entry_point(avctx, &s->gb); break; case VC1_CODE_SLICE: av_log(avctx, AV_LOG_ERROR, "Sliced decoding is not implemented (yet)\n"); av_free(buf2); return -1; } } }else if(v->interlace && ((buf[0] & 0xC0) == 0xC0)){ /* WVC1 interlaced stores both fields divided by marker */
60b6dbe7	const uint8_t *divider;
77ccd3ba	divider = find_next_marker(buf, buf + buf_size); if((divider == (buf + buf_size)) \|\| AV_RB32(divider) != VC1_CODE_FIELD){ av_log(avctx, AV_LOG_ERROR, "Error in WVC1 interlaced frame\n");
8d8d2b73	av_free(buf2);
77ccd3ba	return -1; } buf_size2 = vc1_unescape_buffer(buf, divider - buf, buf2); // TODO av_free(buf2);return -1; }else{ buf_size2 = vc1_unescape_buffer(buf, buf_size, buf2);
3c275f6d	} init_get_bits(&s->gb, buf2, buf_size28); } else init_get_bits(&s->gb, buf, buf_size8);
be3492ec	// do parse frame header
3c275f6d	if(v->profile < PROFILE_ADVANCED) { if(vc1_parse_frame_header(v, &s->gb) == -1) {
34a8dcd0	av_free(buf2);
3c275f6d	return -1; } } else { if(vc1_parse_frame_header_adv(v, &s->gb) == -1) {
34a8dcd0	av_free(buf2);
3c275f6d	return -1; } }
be3492ec
9701840b	if(s->pict_type != FF_I_TYPE && !v->res_rtm_flag){
34a8dcd0	av_free(buf2);
3c275f6d	return -1; }
0d33db8a	// for hurry_up==5 s->current_picture.pict_type= s->pict_type;
9701840b	s->current_picture.key_frame= s->pict_type == FF_I_TYPE;
0d33db8a
be3492ec	/* skip B-frames if we don't have reference frames */
9701840b	if(s->last_picture_ptr==NULL && (s->pict_type==FF_B_TYPE \|\| s->dropable)){
34a8dcd0	av_free(buf2);
3c275f6d	return -1;//buf_size; }
0d33db8a	/* skip b frames if we are in a hurry */
9701840b	if(avctx->hurry_up && s->pict_type==FF_B_TYPE) return -1;//buf_size; if( (avctx->skip_frame >= AVDISCARD_NONREF && s->pict_type==FF_B_TYPE) \|\| (avctx->skip_frame >= AVDISCARD_NONKEY && s->pict_type!=FF_I_TYPE)
3c275f6d	\|\| avctx->skip_frame >= AVDISCARD_ALL) {
34a8dcd0	av_free(buf2);
be3492ec	return buf_size;
3c275f6d	}
0d33db8a	/* skip everything if we are in a hurry>=5 */
3c275f6d	if(avctx->hurry_up>=5) {
34a8dcd0	av_free(buf2);
3c275f6d	return -1;//buf_size; }
42cc17f9
0d33db8a	if(s->next_p_frame_damaged){
9701840b	if(s->pict_type==FF_B_TYPE)
be3492ec	return buf_size;
0d33db8a	else s->next_p_frame_damaged=0; }
3c275f6d	if(MPV_frame_start(s, avctx) < 0) {
34a8dcd0	av_free(buf2);
0d33db8a	return -1;
3c275f6d	}
0d33db8a
2a898132	s->me.qpel_put= s->dsp.put_qpel_pixels_tab; s->me.qpel_avg= s->dsp.avg_qpel_pixels_tab;
c5b42f4a	if ((CONFIG_VC1_VDPAU_DECODER \|\| CONFIG_WMV3_VDPAU_DECODER) &&s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU)
4daa41c4	ff_vdpau_vc1_decode_picture(s, buf_start, (buf + buf_size) - buf_start);
c5b42f4a	else {
27052238	ff_er_frame_start(s);
0d33db8a
27052238	v->bits = buf_size * 8; vc1_decode_blocks(v);
be3492ec	//av_log(s->avctx, AV_LOG_INFO, "Consumed %i/%i bits\n", get_bits_count(&s->gb), buf_size8); // if(get_bits_count(&s->gb) > buf_size 8) // return -1;
27052238	ff_er_frame_end(s);
c5b42f4a	}
0d33db8a	MPV_frame_end(s);
be3492ec	assert(s->current_picture.pict_type == s->current_picture_ptr->pict_type); assert(s->current_picture.pict_type == s->pict_type);
9701840b	if (s->pict_type == FF_B_TYPE \|\| s->low_delay) {
5430b070	pict= (AVFrame)s->current_picture_ptr; } else if (s->last_picture_ptr != NULL) { pict= (AVFrame)s->last_picture_ptr; } if(s->last_picture_ptr \|\| s->low_delay){ *data_size = sizeof(AVFrame);
0d33db8a	ff_print_debug_info(s, pict); } /* Return the Picture timestamp as the frame number */
f87d2632	/* we subtract 1 because it is added on utils.c */
0d33db8a	avctx->frame_number = s->picture_number - 1;
34a8dcd0	av_free(buf2);
be3492ec	return buf_size;
21aa398f	}
be3492ec
10b9c374	/** Close a VC1/WMV3 decoder
2ce151f8	* @warning Initial try at using MpegEncContext stuff */
98a6fff9	static av_cold int vc1_decode_end(AVCodecContext *avctx)
21aa398f	{
10b9c374	VC1Context *v = avctx->priv_data;
21aa398f
e9025600	av_freep(&v->hrd_rate); av_freep(&v->hrd_buffer);
0d33db8a	MPV_common_end(&v->s);
87dfe848	av_freep(&v->mv_type_mb_plane);
5df68893	av_freep(&v->direct_mb_plane);
3c275f6d	av_freep(&v->acpred_plane); av_freep(&v->over_flags_plane);
e4bf0302	av_freep(&v->mb_type_base);
00a75000	av_freep(&v->cbp_base);
e2fdba65	ff_intrax8_common_end(&v->x8);
21aa398f	return 0; }
be3492ec
10b9c374	AVCodec vc1_decoder = { "vc1",
21aa398f	CODEC_TYPE_VIDEO,
10b9c374	CODEC_ID_VC1, sizeof(VC1Context), vc1_decode_init,
21aa398f	NULL,
10b9c374	vc1_decode_end, vc1_decode_frame,
934982c4	CODEC_CAP_DELAY,
162d4fc9	NULL,
fe4bf374	.long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
ac00575d	.pix_fmts = ff_pixfmt_list_420
21aa398f	}; AVCodec wmv3_decoder = { "wmv3", CODEC_TYPE_VIDEO, CODEC_ID_WMV3,
10b9c374	sizeof(VC1Context), vc1_decode_init,
21aa398f	NULL,
10b9c374	vc1_decode_end, vc1_decode_frame,
934982c4	CODEC_CAP_DELAY,
162d4fc9	NULL,
fe4bf374	.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
ac00575d	.pix_fmts = ff_pixfmt_list_420
21aa398f	};
c5b42f4a	#if CONFIG_WMV3_VDPAU_DECODER AVCodec wmv3_vdpau_decoder = { "wmv3_vdpau", CODEC_TYPE_VIDEO, CODEC_ID_WMV3, sizeof(VC1Context), vc1_decode_init, NULL, vc1_decode_end, vc1_decode_frame, CODEC_CAP_DR1 \| CODEC_CAP_DELAY \| CODEC_CAP_HWACCEL_VDPAU, NULL, .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9 VDPAU"),
1a022c2f	.pix_fmts = (enum PixelFormat[]){PIX_FMT_VDPAU_WMV3, PIX_FMT_NONE}
c5b42f4a	}; #endif #if CONFIG_VC1_VDPAU_DECODER AVCodec vc1_vdpau_decoder = { "vc1_vdpau", CODEC_TYPE_VIDEO, CODEC_ID_VC1, sizeof(VC1Context), vc1_decode_init, NULL, vc1_decode_end, vc1_decode_frame, CODEC_CAP_DR1 \| CODEC_CAP_DELAY \| CODEC_CAP_HWACCEL_VDPAU, NULL, .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1 VDPAU"),
1a022c2f	.pix_fmts = (enum PixelFormat[]){PIX_FMT_VDPAU_VC1, PIX_FMT_NONE}
c5b42f4a	}; #endif