52b6bad2 |
/*
* VC3/DNxHD decoder. |
406792e7 |
* Copyright (c) 2007 SmartJog S.A., Baptiste Coudurier <baptiste dot coudurier at smartjog dot com> |
5ab21439 |
* Copyright (c) 2011 MirriAd Ltd |
578f721f |
* Copyright (c) 2015 Christophe Gisquet |
5ab21439 |
*
* 10 bit support added by MirriAd Ltd, Joseph Artsimovich <joseph@mirriad.com> |
578f721f |
* Slice multithreading and MB interlaced support added by Christophe Gisquet |
52b6bad2 |
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* 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
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
|
7ffe76e5 |
#include "libavutil/imgutils.h" |
fb0c9d41 |
#include "libavutil/timer.h" |
52b6bad2 |
#include "avcodec.h" |
e74433a8 |
#include "blockdsp.h" |
235381e6 |
#define UNCHECKED_BITSTREAM_READER 1 |
9106a698 |
#include "get_bits.h" |
52b6bad2 |
#include "dnxhddata.h" |
e3fcb143 |
#include "idctdsp.h" |
594d4d5d |
#include "internal.h" |
41d7642a |
#include "profiles.h" |
1406d9dd |
#include "thread.h" |
52b6bad2 |
|
08a7510f |
typedef struct RowContext {
DECLARE_ALIGNED(16, int16_t, blocks)[12][64];
int luma_scale[64];
int chroma_scale[64];
GetBitContext gb;
int last_dc[3];
int last_qscale; |
b8b8e82e |
int errors; |
71199ee9 |
/** -1:not set yet 0:off=RGB 1:on=YUV 2:variable */
int format; |
08a7510f |
} RowContext;
|
bb32fded |
typedef struct DNXHDContext { |
52b6bad2 |
AVCodecContext *avctx; |
08a7510f |
RowContext *rows; |
e74433a8 |
BlockDSPContext bdsp; |
08a7510f |
const uint8_t* buf;
int buf_size; |
a99c273a |
int64_t cid; ///< compression id |
52b6bad2 |
unsigned int width, height; |
f3c0e0bf |
enum AVPixelFormat pix_fmt; |
52b6bad2 |
unsigned int mb_width, mb_height; |
25e491b6 |
uint32_t mb_scan_index[512]; |
6f1ccca4 |
int data_offset; // End of mb_scan_index, where macroblocks start |
52b6bad2 |
int cur_field; ///< current interlaced field
VLC ac_vlc, dc_vlc, run_vlc; |
e3fcb143 |
IDCTDSPContext idsp; |
20e7c8ae |
ScanTable scantable; |
52b6bad2 |
const CIDEntry *cid_table; |
6f1ccca4 |
int bit_depth; // 8, 10, 12 or 0 if not initialized at all. |
e95018b6 |
int is_444; |
e4b7c3a9 |
int mbaff; |
dc218bd0 |
int act; |
b8b8e82e |
int (*decode_dct_block)(const struct DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n); |
52b6bad2 |
} DNXHDContext;
#define DNXHD_VLC_BITS 9 |
cd52a9ca |
#define DNXHD_DC_VLC_BITS 7 |
52b6bad2 |
|
b8b8e82e |
static int dnxhd_decode_dct_block_8(const DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n); |
b8b8e82e |
static int dnxhd_decode_dct_block_10(const DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n); |
b8b8e82e |
static int dnxhd_decode_dct_block_10_444(const DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n); |
6f1ccca4 |
static int dnxhd_decode_dct_block_12(const DNXHDContext *ctx,
RowContext *row, int n);
static int dnxhd_decode_dct_block_12_444(const DNXHDContext *ctx,
RowContext *row, int n); |
bb32fded |
|
98a6fff9 |
static av_cold int dnxhd_decode_init(AVCodecContext *avctx) |
52b6bad2 |
{
DNXHDContext *ctx = avctx->priv_data;
ctx->avctx = avctx; |
a99c273a |
ctx->cid = -1; |
e19ea021 |
avctx->colorspace = AVCOL_SPC_BT709; |
08a7510f |
|
7e4070d2 |
avctx->coded_width = FFALIGN(avctx->width, 16);
avctx->coded_height = FFALIGN(avctx->height, 16);
|
08a7510f |
ctx->rows = av_mallocz_array(avctx->thread_count, sizeof(RowContext));
if (!ctx->rows)
return AVERROR(ENOMEM);
|
52b6bad2 |
return 0;
}
|
71199ee9 |
static int dnxhd_init_vlc(DNXHDContext *ctx, uint32_t cid, int bitdepth) |
52b6bad2 |
{ |
721719dd |
if (cid != ctx->cid) { |
52b6bad2 |
int index;
|
d3dc629c |
if ((index = ff_dnxhd_get_cid_table(cid)) < 0) { |
54904525 |
av_log(ctx->avctx, AV_LOG_ERROR, "unsupported cid %"PRIu32"\n", cid); |
28e508a9 |
return AVERROR(ENOSYS); |
52b6bad2 |
} |
71199ee9 |
if (ff_dnxhd_cid_table[index].bit_depth != bitdepth && |
1f4ff53a |
ff_dnxhd_cid_table[index].bit_depth != DNXHD_VARIABLE) { |
71199ee9 |
av_log(ctx->avctx, AV_LOG_ERROR, "bit depth mismatches %d %d\n", ff_dnxhd_cid_table[index].bit_depth, bitdepth); |
6c0027bb |
return AVERROR_INVALIDDATA;
} |
d3dc629c |
ctx->cid_table = &ff_dnxhd_cid_table[index]; |
54904525 |
av_log(ctx->avctx, AV_LOG_VERBOSE, "Profile cid %"PRIu32".\n", cid); |
721719dd |
|
e96b4a53 |
ff_free_vlc(&ctx->ac_vlc);
ff_free_vlc(&ctx->dc_vlc);
ff_free_vlc(&ctx->run_vlc); |
721719dd |
|
52b6bad2 |
init_vlc(&ctx->ac_vlc, DNXHD_VLC_BITS, 257, |
940e4bf9 |
ctx->cid_table->ac_bits, 1, 1,
ctx->cid_table->ac_codes, 2, 2, 0); |
e1be80aa |
init_vlc(&ctx->dc_vlc, DNXHD_DC_VLC_BITS, bitdepth > 8 ? 14 : 12, |
940e4bf9 |
ctx->cid_table->dc_bits, 1, 1,
ctx->cid_table->dc_codes, 1, 1, 0); |
52b6bad2 |
init_vlc(&ctx->run_vlc, DNXHD_VLC_BITS, 62, |
940e4bf9 |
ctx->cid_table->run_bits, 1, 1,
ctx->cid_table->run_codes, 2, 2, 0); |
52b6bad2 |
|
721719dd |
ctx->cid = cid; |
52b6bad2 |
}
return 0;
}
|
08a7510f |
static av_cold int dnxhd_decode_init_thread_copy(AVCodecContext *avctx)
{
DNXHDContext *ctx = avctx->priv_data;
|
f800d650 |
ctx->avctx = avctx; |
08a7510f |
// make sure VLC tables will be loaded when cid is parsed
ctx->cid = -1;
ctx->rows = av_mallocz_array(avctx->thread_count, sizeof(RowContext));
if (!ctx->rows)
return AVERROR(ENOMEM);
return 0;
}
|
41d7642a |
static int dnxhd_get_profile(int cid)
{
switch(cid) {
case 1270:
return FF_PROFILE_DNXHR_444;
case 1271:
return FF_PROFILE_DNXHR_HQX;
case 1272:
return FF_PROFILE_DNXHR_HQ;
case 1273:
return FF_PROFILE_DNXHR_SQ;
case 1274:
return FF_PROFILE_DNXHR_LB;
}
return FF_PROFILE_DNXHD;
}
|
759001c5 |
static int dnxhd_decode_header(DNXHDContext *ctx, AVFrame *frame, |
89ef08c9 |
const uint8_t *buf, int buf_size,
int first_field) |
52b6bad2 |
{ |
28e508a9 |
int i, cid, ret; |
71199ee9 |
int old_bit_depth = ctx->bit_depth, bitdepth; |
8395b6ee |
uint64_t header_prefix; |
41e03e28 |
if (buf_size < 0x280) { |
6110a55b |
av_log(ctx->avctx, AV_LOG_ERROR,
"buffer too small (%d < 640).\n", buf_size); |
28e508a9 |
return AVERROR_INVALIDDATA; |
41e03e28 |
} |
52b6bad2 |
|
0c75bd8e |
header_prefix = ff_dnxhd_parse_header_prefix(buf); |
8395b6ee |
if (header_prefix == 0) { |
d84429d4 |
av_log(ctx->avctx, AV_LOG_ERROR,
"unknown header 0x%02X 0x%02X 0x%02X 0x%02X 0x%02X\n",
buf[0], buf[1], buf[2], buf[3], buf[4]); |
28e508a9 |
return AVERROR_INVALIDDATA; |
52b6bad2 |
} |
6b259e43 |
if (buf[5] & 2) { /* interlaced */
ctx->cur_field = buf[5] & 1; |
759001c5 |
frame->interlaced_frame = 1;
frame->top_field_first = first_field ^ ctx->cur_field; |
89ef08c9 |
av_log(ctx->avctx, AV_LOG_DEBUG,
"interlaced %d, cur field %d\n", buf[5] & 3, ctx->cur_field); |
77bd35d7 |
} else {
ctx->cur_field = 0; |
52b6bad2 |
} |
9139a7e8 |
ctx->mbaff = (buf[0x6] >> 5) & 1; |
52b6bad2 |
ctx->height = AV_RB16(buf + 0x18);
ctx->width = AV_RB16(buf + 0x1a);
|
9139a7e8 |
switch(buf[0x21] >> 5) { |
71199ee9 |
case 1: bitdepth = 8; break;
case 2: bitdepth = 10; break;
case 3: bitdepth = 12; break; |
9139a7e8 |
default:
av_log(ctx->avctx, AV_LOG_ERROR,
"Unknown bitdepth indicator (%d)\n", buf[0x21] >> 5);
return AVERROR_INVALIDDATA;
} |
71199ee9 |
cid = AV_RB32(buf + 0x28); |
41d7642a |
ctx->avctx->profile = dnxhd_get_profile(cid);
|
71199ee9 |
if ((ret = dnxhd_init_vlc(ctx, cid, bitdepth)) < 0)
return ret;
if (ctx->mbaff && ctx->cid_table->cid != 1260)
av_log(ctx->avctx, AV_LOG_WARNING,
"Adaptive MB interlace flag in an unsupported profile.\n");
ctx->act = buf[0x2C] & 7;
if (ctx->act && ctx->cid_table->cid != 1256 && ctx->cid_table->cid != 1270)
av_log(ctx->avctx, AV_LOG_WARNING,
"Adaptive color transform in an unsupported profile.\n"); |
598f7d04 |
|
9139a7e8 |
ctx->is_444 = (buf[0x2C] >> 6) & 1;
if (ctx->is_444) { |
71199ee9 |
if (bitdepth == 8) { |
a8cb567e |
avpriv_request_sample(ctx->avctx, "4:4:4 8 bits"); |
9139a7e8 |
return AVERROR_INVALIDDATA; |
71199ee9 |
} else if (bitdepth == 10) { |
6f1ccca4 |
ctx->decode_dct_block = dnxhd_decode_dct_block_10_444; |
71199ee9 |
ctx->pix_fmt = ctx->act ? AV_PIX_FMT_YUV444P10
: AV_PIX_FMT_GBRP10; |
6f1ccca4 |
} else {
ctx->decode_dct_block = dnxhd_decode_dct_block_12_444; |
71199ee9 |
ctx->pix_fmt = ctx->act ? AV_PIX_FMT_YUV444P12
: AV_PIX_FMT_GBRP12; |
5ab21439 |
} |
71199ee9 |
} else if (bitdepth == 12) { |
6f1ccca4 |
ctx->decode_dct_block = dnxhd_decode_dct_block_12;
ctx->pix_fmt = AV_PIX_FMT_YUV422P12; |
71199ee9 |
} else if (bitdepth == 10) { |
2c583925 |
if (ctx->avctx->profile == FF_PROFILE_DNXHR_HQX)
ctx->decode_dct_block = dnxhd_decode_dct_block_10_444;
else
ctx->decode_dct_block = dnxhd_decode_dct_block_10; |
9139a7e8 |
ctx->pix_fmt = AV_PIX_FMT_YUV422P10; |
598f7d04 |
} else { |
9139a7e8 |
ctx->decode_dct_block = dnxhd_decode_dct_block_8;
ctx->pix_fmt = AV_PIX_FMT_YUV422P; |
52b6bad2 |
} |
71199ee9 |
ctx->avctx->bits_per_raw_sample = ctx->bit_depth = bitdepth; |
dcac15a8 |
if (ctx->bit_depth != old_bit_depth) {
ff_blockdsp_init(&ctx->bdsp, ctx->avctx);
ff_idctdsp_init(&ctx->idsp, ctx->avctx); |
74ef5449 |
ff_init_scantable(ctx->idsp.idct_permutation, &ctx->scantable,
ff_zigzag_direct); |
dcac15a8 |
} |
52b6bad2 |
|
1a07df31 |
// make sure profile size constraints are respected
// DNx100 allows 1920->1440 and 1280->960 subsampling |
1f4ff53a |
if (ctx->width != ctx->cid_table->width &&
ctx->cid_table->width != DNXHD_VARIABLE) { |
1a07df31 |
av_reduce(&ctx->avctx->sample_aspect_ratio.num,
&ctx->avctx->sample_aspect_ratio.den,
ctx->width, ctx->cid_table->width, 255);
ctx->width = ctx->cid_table->width;
}
|
035bc647 |
if (buf_size < ctx->cid_table->coding_unit_size) { |
1263b203 |
av_log(ctx->avctx, AV_LOG_ERROR, "incorrect frame size (%d < %u).\n", |
41e03e28 |
buf_size, ctx->cid_table->coding_unit_size); |
28e508a9 |
return AVERROR_INVALIDDATA; |
52b6bad2 |
}
|
9139a7e8 |
ctx->mb_width = (ctx->width + 15)>> 4; |
25e491b6 |
ctx->mb_height = AV_RB16(buf + 0x16c); |
52b6bad2 |
|
89ef08c9 |
if ((ctx->height + 15) >> 4 == ctx->mb_height && frame->interlaced_frame) |
1307463d |
ctx->height <<= 1;
|
9139a7e8 |
av_log(ctx->avctx, AV_LOG_VERBOSE, "%dx%d, 4:%s %d bits, MBAFF=%d ACT=%d\n",
ctx->width, ctx->height, ctx->is_444 ? "4:4" : "2:2",
ctx->bit_depth, ctx->mbaff, ctx->act);
|
6f1ccca4 |
// Newer format supports variable mb_scan_index sizes |
ed0dc14e |
if (ctx->mb_height > 68 && ff_dnxhd_check_header_prefix_hr(header_prefix)) { |
6f1ccca4 |
ctx->data_offset = 0x170 + (ctx->mb_height << 2);
} else { |
296debd2 |
if (ctx->mb_height > 68) { |
6f1ccca4 |
av_log(ctx->avctx, AV_LOG_ERROR,
"mb height too big: %d\n", ctx->mb_height);
return AVERROR_INVALIDDATA;
}
ctx->data_offset = 0x280;
} |
296debd2 |
if ((ctx->mb_height << frame->interlaced_frame) > (ctx->height + 15) >> 4) {
av_log(ctx->avctx, AV_LOG_ERROR,
"mb height too big: %d\n", ctx->mb_height);
return AVERROR_INVALIDDATA;
} |
6f1ccca4 |
if (buf_size < ctx->data_offset) { |
89ef08c9 |
av_log(ctx->avctx, AV_LOG_ERROR, |
6f1ccca4 |
"buffer too small (%d < %d).\n", buf_size, ctx->data_offset); |
28e508a9 |
return AVERROR_INVALIDDATA; |
52b6bad2 |
}
|
25e491b6 |
if (ctx->mb_height > FF_ARRAY_ELEMS(ctx->mb_scan_index)) {
av_log(ctx->avctx, AV_LOG_ERROR, |
2b4cc8d1 |
"mb_height too big (%d > %"SIZE_SPECIFIER").\n", ctx->mb_height, FF_ARRAY_ELEMS(ctx->mb_scan_index)); |
25e491b6 |
return AVERROR_INVALIDDATA;
} |
6f1ccca4 |
|
52b6bad2 |
for (i = 0; i < ctx->mb_height; i++) { |
89ef08c9 |
ctx->mb_scan_index[i] = AV_RB32(buf + 0x170 + (i << 2)); |
54904525 |
ff_dlog(ctx->avctx, "mb scan index %d, pos %d: %"PRIu32"\n",
i, 0x170 + (i << 2), ctx->mb_scan_index[i]); |
6f1ccca4 |
if (buf_size - ctx->data_offset < ctx->mb_scan_index[i]) { |
41e03e28 |
av_log(ctx->avctx, AV_LOG_ERROR, |
54904525 |
"invalid mb scan index (%"PRIu32" vs %u).\n", |
6f1ccca4 |
ctx->mb_scan_index[i], buf_size - ctx->data_offset); |
28e508a9 |
return AVERROR_INVALIDDATA; |
52b6bad2 |
}
}
return 0;
}
|
b8b8e82e |
static av_always_inline int dnxhd_decode_dct_block(const DNXHDContext *ctx, |
6110a55b |
RowContext *row,
int n,
int index_bits,
int level_bias, |
6f1ccca4 |
int level_shift,
int dc_shift) |
52b6bad2 |
{ |
9dfd89b8 |
int i, j, index1, index2, len, flags; |
52b6bad2 |
int level, component, sign; |
5bcdc099 |
const int *scale; |
bb32fded |
const uint8_t *weight_matrix; |
96b165fa |
const uint8_t *ac_info = ctx->cid_table->ac_info; |
5c6e3a01 |
int16_t *block = row->blocks[n]; |
185a2c08 |
const int eob_index = ctx->cid_table->eob_index; |
b8b8e82e |
int ret = 0; |
08a7510f |
OPEN_READER(bs, &row->gb); |
52b6bad2 |
|
5c6e3a01 |
ctx->bdsp.clear_block(block);
|
e95018b6 |
if (!ctx->is_444) { |
89ef08c9 |
if (n & 2) {
component = 1 + (n & 1); |
08a7510f |
scale = row->chroma_scale; |
e95018b6 |
weight_matrix = ctx->cid_table->chroma_weight;
} else { |
89ef08c9 |
component = 0; |
08a7510f |
scale = row->luma_scale; |
e95018b6 |
weight_matrix = ctx->cid_table->luma_weight;
} |
52b6bad2 |
} else { |
e95018b6 |
component = (n >> 1) % 3;
if (component) { |
08a7510f |
scale = row->chroma_scale; |
e95018b6 |
weight_matrix = ctx->cid_table->chroma_weight;
} else { |
08a7510f |
scale = row->luma_scale; |
e95018b6 |
weight_matrix = ctx->cid_table->luma_weight;
} |
52b6bad2 |
}
|
08a7510f |
UPDATE_CACHE(bs, &row->gb);
GET_VLC(len, bs, &row->gb, ctx->dc_vlc.table, DNXHD_DC_VLC_BITS, 1); |
bb32fded |
if (len) { |
08a7510f |
level = GET_CACHE(bs, &row->gb);
LAST_SKIP_BITS(bs, &row->gb, len); |
bb32fded |
sign = ~level >> 31;
level = (NEG_USR32(sign ^ level, len) ^ sign) - sign; |
2ff61c3c |
row->last_dc[component] += level * (1 << dc_shift); |
bb32fded |
} |
08a7510f |
block[0] = row->last_dc[component]; |
bb32fded |
|
b297c881 |
i = 0; |
52b6bad2 |
|
08a7510f |
UPDATE_CACHE(bs, &row->gb);
GET_VLC(index1, bs, &row->gb, ctx->ac_vlc.table, |
b297c881 |
DNXHD_VLC_BITS, 2);
|
185a2c08 |
while (index1 != eob_index) { |
96b165fa |
level = ac_info[2*index1+0];
flags = ac_info[2*index1+1]; |
52b6bad2 |
|
08a7510f |
sign = SHOW_SBITS(bs, &row->gb, 1);
SKIP_BITS(bs, &row->gb, 1); |
bb32fded |
|
9dfd89b8 |
if (flags & 1) { |
08a7510f |
level += SHOW_UBITS(bs, &row->gb, index_bits) << 7;
SKIP_BITS(bs, &row->gb, index_bits); |
52b6bad2 |
}
|
9dfd89b8 |
if (flags & 2) { |
08a7510f |
UPDATE_CACHE(bs, &row->gb);
GET_VLC(index2, bs, &row->gb, ctx->run_vlc.table, |
bb32fded |
DNXHD_VLC_BITS, 2); |
9a0a2c9f |
i += ctx->cid_table->run[index2]; |
52b6bad2 |
}
|
b297c881 |
if (++i > 63) { |
a417d041 |
av_log(ctx->avctx, AV_LOG_ERROR, "ac tex damaged %d, %d\n", n, i); |
b8b8e82e |
ret = -1; |
bb32fded |
break; |
a417d041 |
}
|
89ef08c9 |
j = ctx->scantable.permutated[i]; |
5bcdc099 |
level *= scale[i]; |
c7e14a27 |
level += scale[i] >> 1; |
b4cfb825 |
if (level_bias < 32 || weight_matrix[i] != level_bias) |
c7e14a27 |
level += level_bias; // 1<<(level_shift-1) |
bb32fded |
level >>= level_shift;
|
89ef08c9 |
block[j] = (level ^ sign) - sign; |
b297c881 |
|
08a7510f |
UPDATE_CACHE(bs, &row->gb);
GET_VLC(index1, bs, &row->gb, ctx->ac_vlc.table, |
b297c881 |
DNXHD_VLC_BITS, 2); |
52b6bad2 |
} |
bb32fded |
|
08a7510f |
CLOSE_READER(bs, &row->gb); |
b8b8e82e |
return ret; |
bb32fded |
}
|
b8b8e82e |
static int dnxhd_decode_dct_block_8(const DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n) |
bb32fded |
{ |
6f1ccca4 |
return dnxhd_decode_dct_block(ctx, row, n, 4, 32, 6, 0); |
bb32fded |
}
|
b8b8e82e |
static int dnxhd_decode_dct_block_10(const DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n) |
bb32fded |
{ |
6f1ccca4 |
return dnxhd_decode_dct_block(ctx, row, n, 6, 8, 4, 0); |
52b6bad2 |
}
|
b8b8e82e |
static int dnxhd_decode_dct_block_10_444(const DNXHDContext *ctx, |
6110a55b |
RowContext *row, int n) |
e95018b6 |
{ |
6f1ccca4 |
return dnxhd_decode_dct_block(ctx, row, n, 6, 32, 6, 0);
}
static int dnxhd_decode_dct_block_12(const DNXHDContext *ctx,
RowContext *row, int n)
{
return dnxhd_decode_dct_block(ctx, row, n, 6, 8, 4, 2);
}
static int dnxhd_decode_dct_block_12_444(const DNXHDContext *ctx,
RowContext *row, int n)
{
return dnxhd_decode_dct_block(ctx, row, n, 6, 32, 4, 2); |
e95018b6 |
}
|
08a7510f |
static int dnxhd_decode_macroblock(const DNXHDContext *ctx, RowContext *row,
AVFrame *frame, int x, int y) |
52b6bad2 |
{ |
6f1ccca4 |
int shift1 = ctx->bit_depth >= 10; |
759001c5 |
int dct_linesize_luma = frame->linesize[0];
int dct_linesize_chroma = frame->linesize[1]; |
52b6bad2 |
uint8_t *dest_y, *dest_u, *dest_v; |
5ab21439 |
int dct_y_offset, dct_x_offset; |
dc218bd0 |
int qscale, i, act; |
2801a135 |
int interlaced_mb = 0; |
52b6bad2 |
|
e4b7c3a9 |
if (ctx->mbaff) { |
08a7510f |
interlaced_mb = get_bits1(&row->gb);
qscale = get_bits(&row->gb, 10); |
c49cbecb |
} else { |
08a7510f |
qscale = get_bits(&row->gb, 11); |
c49cbecb |
} |
08a7510f |
act = get_bits1(&row->gb); |
dc218bd0 |
if (act) { |
71199ee9 |
if (!ctx->act) {
static int act_warned;
if (!act_warned) {
act_warned = 1;
av_log(ctx->avctx, AV_LOG_ERROR,
"ACT flag set, in violation of frame header.\n");
}
} else if (row->format == -1) {
row->format = act;
} else if (row->format != act) {
row->format = 2; // Variable |
dc218bd0 |
}
} |
52b6bad2 |
|
08a7510f |
if (qscale != row->last_qscale) { |
5bcdc099 |
for (i = 0; i < 64; i++) { |
08a7510f |
row->luma_scale[i] = qscale * ctx->cid_table->luma_weight[i];
row->chroma_scale[i] = qscale * ctx->cid_table->chroma_weight[i]; |
5bcdc099 |
} |
08a7510f |
row->last_qscale = qscale; |
5bcdc099 |
}
|
5c6e3a01 |
for (i = 0; i < 8 + 4 * ctx->is_444; i++) { |
b8b8e82e |
if (ctx->decode_dct_block(ctx, row, i) < 0)
return AVERROR_INVALIDDATA; |
e95018b6 |
} |
6b259e43 |
|
759001c5 |
if (frame->interlaced_frame) { |
6b259e43 |
dct_linesize_luma <<= 1;
dct_linesize_chroma <<= 1;
}
|
759001c5 |
dest_y = frame->data[0] + ((y * dct_linesize_luma) << 4) + (x << (4 + shift1)); |
e95018b6 |
dest_u = frame->data[1] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444));
dest_v = frame->data[2] + ((y * dct_linesize_chroma) << 4) + (x << (3 + shift1 + ctx->is_444)); |
52b6bad2 |
|
2c660e34 |
if (frame->interlaced_frame && ctx->cur_field) { |
759001c5 |
dest_y += frame->linesize[0];
dest_u += frame->linesize[1];
dest_v += frame->linesize[2]; |
6b259e43 |
} |
2801a135 |
if (interlaced_mb) {
dct_linesize_luma <<= 1;
dct_linesize_chroma <<= 1;
} |
6b259e43 |
|
2801a135 |
dct_y_offset = interlaced_mb ? frame->linesize[0] : (dct_linesize_luma << 3); |
5ab21439 |
dct_x_offset = 8 << shift1; |
e95018b6 |
if (!ctx->is_444) { |
08a7510f |
ctx->idsp.idct_put(dest_y, dct_linesize_luma, row->blocks[0]);
ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, row->blocks[1]);
ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, row->blocks[4]);
ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, row->blocks[5]); |
e95018b6 |
|
7c6eb0a1 |
if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
2801a135 |
dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3); |
08a7510f |
ctx->idsp.idct_put(dest_u, dct_linesize_chroma, row->blocks[2]);
ctx->idsp.idct_put(dest_v, dct_linesize_chroma, row->blocks[3]);
ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, row->blocks[6]);
ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, row->blocks[7]); |
e95018b6 |
}
} else { |
08a7510f |
ctx->idsp.idct_put(dest_y, dct_linesize_luma, row->blocks[0]);
ctx->idsp.idct_put(dest_y + dct_x_offset, dct_linesize_luma, row->blocks[1]);
ctx->idsp.idct_put(dest_y + dct_y_offset, dct_linesize_luma, row->blocks[6]);
ctx->idsp.idct_put(dest_y + dct_y_offset + dct_x_offset, dct_linesize_luma, row->blocks[7]); |
e95018b6 |
|
7c6eb0a1 |
if (!(ctx->avctx->flags & AV_CODEC_FLAG_GRAY)) { |
2801a135 |
dct_y_offset = interlaced_mb ? frame->linesize[1] : (dct_linesize_chroma << 3); |
08a7510f |
ctx->idsp.idct_put(dest_u, dct_linesize_chroma, row->blocks[2]);
ctx->idsp.idct_put(dest_u + dct_x_offset, dct_linesize_chroma, row->blocks[3]);
ctx->idsp.idct_put(dest_u + dct_y_offset, dct_linesize_chroma, row->blocks[8]);
ctx->idsp.idct_put(dest_u + dct_y_offset + dct_x_offset, dct_linesize_chroma, row->blocks[9]);
ctx->idsp.idct_put(dest_v, dct_linesize_chroma, row->blocks[4]);
ctx->idsp.idct_put(dest_v + dct_x_offset, dct_linesize_chroma, row->blocks[5]);
ctx->idsp.idct_put(dest_v + dct_y_offset, dct_linesize_chroma, row->blocks[10]);
ctx->idsp.idct_put(dest_v + dct_y_offset + dct_x_offset, dct_linesize_chroma, row->blocks[11]); |
e95018b6 |
} |
52b6bad2 |
}
return 0;
}
|
08a7510f |
static int dnxhd_decode_row(AVCodecContext *avctx, void *data,
int rownb, int threadnb) |
52b6bad2 |
{ |
08a7510f |
const DNXHDContext *ctx = avctx->priv_data;
uint32_t offset = ctx->mb_scan_index[rownb];
RowContext *row = ctx->rows + threadnb;
int x;
row->last_dc[0] =
row->last_dc[1] =
row->last_dc[2] = 1 << (ctx->bit_depth + 2); // for levels +2^(bitdepth-1)
init_get_bits(&row->gb, ctx->buf + offset, (ctx->buf_size - offset) << 3);
for (x = 0; x < ctx->mb_width; x++) {
//START_TIMER; |
b8b8e82e |
int ret = dnxhd_decode_macroblock(ctx, row, data, x, rownb);
if (ret < 0) {
row->errors++;
return ret;
} |
08a7510f |
//STOP_TIMER("decode macroblock"); |
52b6bad2 |
} |
08a7510f |
|
52b6bad2 |
return 0;
}
|
89ef08c9 |
static int dnxhd_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt) |
52b6bad2 |
{ |
7a00bbad |
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size; |
52b6bad2 |
DNXHDContext *ctx = avctx->priv_data; |
80e9e63c |
ThreadFrame frame = { .f = data }; |
52b6bad2 |
AVFrame *picture = data; |
6b259e43 |
int first_field = 1; |
b8b8e82e |
int ret, i; |
52b6bad2 |
|
6a85dfc8 |
ff_dlog(avctx, "frame size %d\n", buf_size); |
52b6bad2 |
|
71199ee9 |
for (i = 0; i < avctx->thread_count; i++)
ctx->rows[i].format = -1;
|
89ef08c9 |
decode_coding_unit: |
28e508a9 |
if ((ret = dnxhd_decode_header(ctx, picture, buf, buf_size, first_field)) < 0)
return ret; |
52b6bad2 |
|
1307463d |
if ((avctx->width || avctx->height) &&
(ctx->width != avctx->width || ctx->height != avctx->height)) { |
1263b203 |
av_log(avctx, AV_LOG_WARNING, "frame size changed: %dx%d -> %ux%u\n", |
1307463d |
avctx->width, avctx->height, ctx->width, ctx->height);
first_field = 1;
} |
f3c0e0bf |
if (avctx->pix_fmt != AV_PIX_FMT_NONE && avctx->pix_fmt != ctx->pix_fmt) {
av_log(avctx, AV_LOG_WARNING, "pix_fmt changed: %s -> %s\n",
av_get_pix_fmt_name(avctx->pix_fmt), av_get_pix_fmt_name(ctx->pix_fmt));
first_field = 1;
} |
1307463d |
|
f3c0e0bf |
avctx->pix_fmt = ctx->pix_fmt; |
c7a5acab |
ret = ff_set_dimensions(avctx, ctx->width, ctx->height);
if (ret < 0)
return ret; |
52b6bad2 |
|
6b259e43 |
if (first_field) { |
1ec94b0f |
if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) |
1406d9dd |
return ret; |
759001c5 |
picture->pict_type = AV_PICTURE_TYPE_I;
picture->key_frame = 1; |
6b259e43 |
} |
52b6bad2 |
|
6f1ccca4 |
ctx->buf_size = buf_size - ctx->data_offset;
ctx->buf = buf + ctx->data_offset; |
08a7510f |
avctx->execute2(avctx, dnxhd_decode_row, picture, NULL, ctx->mb_height); |
52b6bad2 |
|
759001c5 |
if (first_field && picture->interlaced_frame) { |
6b259e43 |
buf += ctx->cid_table->coding_unit_size;
buf_size -= ctx->cid_table->coding_unit_size;
first_field = 0;
goto decode_coding_unit;
}
|
b8b8e82e |
ret = 0;
for (i = 0; i < avctx->thread_count; i++) {
ret += ctx->rows[i].errors;
ctx->rows[i].errors = 0;
}
|
71199ee9 |
if (ctx->act) {
static int act_warned;
int format = ctx->rows[0].format;
for (i = 1; i < avctx->thread_count; i++) {
if (ctx->rows[i].format != format &&
ctx->rows[i].format != -1 /* not run */) {
format = 2;
break;
}
}
switch (format) {
case -1:
case 2:
if (!act_warned) {
act_warned = 1;
av_log(ctx->avctx, AV_LOG_ERROR,
"Unsupported: variable ACT flag.\n");
}
break;
case 0:
ctx->pix_fmt = ctx->bit_depth==10
? AV_PIX_FMT_GBRP10 : AV_PIX_FMT_GBRP12;
break;
case 1:
ctx->pix_fmt = ctx->bit_depth==10
? AV_PIX_FMT_YUV444P10 : AV_PIX_FMT_YUV444P12;
break;
}
}
avctx->pix_fmt = ctx->pix_fmt; |
b8b8e82e |
if (ret) {
av_log(ctx->avctx, AV_LOG_ERROR, "%d lines with errors\n", ret);
return AVERROR_INVALIDDATA;
}
|
df9b9567 |
*got_frame = 1; |
dae38a66 |
return avpkt->size; |
52b6bad2 |
}
|
98a6fff9 |
static av_cold int dnxhd_decode_close(AVCodecContext *avctx) |
52b6bad2 |
{
DNXHDContext *ctx = avctx->priv_data;
|
e96b4a53 |
ff_free_vlc(&ctx->ac_vlc);
ff_free_vlc(&ctx->dc_vlc);
ff_free_vlc(&ctx->run_vlc); |
08a7510f |
av_freep(&ctx->rows);
|
52b6bad2 |
return 0;
}
|
e7e2df27 |
AVCodec ff_dnxhd_decoder = { |
ec6402b7 |
.name = "dnxhd", |
b2bed932 |
.long_name = NULL_IF_CONFIG_SMALL("VC3/DNxHD"), |
ec6402b7 |
.type = AVMEDIA_TYPE_VIDEO, |
36ef5369 |
.id = AV_CODEC_ID_DNXHD, |
ec6402b7 |
.priv_data_size = sizeof(DNXHDContext),
.init = dnxhd_decode_init,
.close = dnxhd_decode_close,
.decode = dnxhd_decode_frame, |
08a7510f |
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS |
AV_CODEC_CAP_SLICE_THREADS,
.init_thread_copy = ONLY_IF_THREADS_ENABLED(dnxhd_decode_init_thread_copy), |
41d7642a |
.profiles = NULL_IF_CONFIG_SMALL(ff_dnxhd_profiles), |
52b6bad2 |
}; |