| 2ca5ca29 |
/*
* huffyuv decoder
* |
| 7cf8918b |
* Copyright (c) 2002-2014 Michael Niedermayer <michaelni@gmx.at> |
| 2ca5ca29 |
*
* see http://www.pcisys.net/~melanson/codecs/huffyuv.txt for a description of
* the algorithm used
* |
| def18e54 |
* This file is part of FFmpeg. |
| 2ca5ca29 |
* |
| def18e54 |
* FFmpeg is free software; you can redistribute it and/or |
| 2ca5ca29 |
* 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.
* |
| def18e54 |
* FFmpeg is distributed in the hope that it will be useful, |
| 2ca5ca29 |
* 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 |
| def18e54 |
* License along with FFmpeg; if not, write to the Free Software |
| 2ca5ca29 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| b53aab1a |
*
* yuva, gray, 4:4:4, 4:1:1, 4:1:0 and >8 bit per sample support sponsored by NOA |
| 2ca5ca29 |
*/
/**
* @file
* huffyuv decoder
*/
|
| f6577bd9 |
#define UNCHECKED_BITSTREAM_READER 1
|
| 2ca5ca29 |
#include "avcodec.h"
#include "get_bits.h"
#include "huffyuv.h" |
| 0d439fbe |
#include "huffyuvdsp.h" |
| 2ca5ca29 |
#include "thread.h" |
| 9a345802 |
#include "libavutil/imgutils.h" |
| 27b1e63f |
#include "libavutil/pixdesc.h" |
| 2ca5ca29 |
#define classic_shift_luma_table_size 42 |
| 059a9348 |
static const unsigned char classic_shift_luma[classic_shift_luma_table_size + AV_INPUT_BUFFER_PADDING_SIZE] = { |
| c065f4a0 |
34, 36, 35, 69, 135, 232, 9, 16, 10, 24, 11, 23, 12, 16, 13, 10,
14, 8, 15, 8, 16, 8, 17, 20, 16, 10, 207, 206, 205, 236, 11, 8, |
| c1e7fb60 |
10, 21, 9, 23, 8, 8, 199, 70, 69, 68, 0, |
| def18e54 |
0,0,0,0,0,0,0,0, |
| 2ca5ca29 |
};
#define classic_shift_chroma_table_size 59 |
| 059a9348 |
static const unsigned char classic_shift_chroma[classic_shift_chroma_table_size + AV_INPUT_BUFFER_PADDING_SIZE] = { |
| c065f4a0 |
66, 36, 37, 38, 39, 40, 41, 75, 76, 77, 110, 239, 144, 81, 82, 83,
84, 85, 118, 183, 56, 57, 88, 89, 56, 89, 154, 57, 58, 57, 26, 141,
57, 56, 58, 57, 58, 57, 184, 119, 214, 245, 116, 83, 82, 49, 80, 79, |
| c1e7fb60 |
78, 77, 44, 75, 41, 40, 39, 38, 37, 36, 34, 0, |
| def18e54 |
0,0,0,0,0,0,0,0, |
| 2ca5ca29 |
};
static const unsigned char classic_add_luma[256] = { |
| c065f4a0 |
3, 9, 5, 12, 10, 35, 32, 29, 27, 50, 48, 45, 44, 41, 39, 37,
73, 70, 68, 65, 64, 61, 58, 56, 53, 50, 49, 46, 44, 41, 38, 36,
68, 65, 63, 61, 58, 55, 53, 51, 48, 46, 45, 43, 41, 39, 38, 36,
35, 33, 32, 30, 29, 27, 26, 25, 48, 47, 46, 44, 43, 41, 40, 39,
37, 36, 35, 34, 32, 31, 30, 28, 27, 26, 24, 23, 22, 20, 19, 37,
35, 34, 33, 31, 30, 29, 27, 26, 24, 23, 21, 20, 18, 17, 15, 29,
27, 26, 24, 22, 21, 19, 17, 16, 14, 26, 25, 23, 21, 19, 18, 16,
15, 27, 25, 23, 21, 19, 17, 16, 14, 26, 25, 23, 21, 18, 17, 14,
12, 17, 19, 13, 4, 9, 2, 11, 1, 7, 8, 0, 16, 3, 14, 6,
12, 10, 5, 15, 18, 11, 10, 13, 15, 16, 19, 20, 22, 24, 27, 15,
18, 20, 22, 24, 26, 14, 17, 20, 22, 24, 27, 15, 18, 20, 23, 25,
28, 16, 19, 22, 25, 28, 32, 36, 21, 25, 29, 33, 38, 42, 45, 49,
28, 31, 34, 37, 40, 42, 44, 47, 49, 50, 52, 54, 56, 57, 59, 60,
62, 64, 66, 67, 69, 35, 37, 39, 40, 42, 43, 45, 47, 48, 51, 52,
54, 55, 57, 59, 60, 62, 63, 66, 67, 69, 71, 72, 38, 40, 42, 43,
46, 47, 49, 51, 26, 28, 30, 31, 33, 34, 18, 19, 11, 13, 7, 8, |
| 2ca5ca29 |
};
static const unsigned char classic_add_chroma[256] = { |
| c065f4a0 |
3, 1, 2, 2, 2, 2, 3, 3, 7, 5, 7, 5, 8, 6, 11, 9,
7, 13, 11, 10, 9, 8, 7, 5, 9, 7, 6, 4, 7, 5, 8, 7,
11, 8, 13, 11, 19, 15, 22, 23, 20, 33, 32, 28, 27, 29, 51, 77,
43, 45, 76, 81, 46, 82, 75, 55, 56, 144, 58, 80, 60, 74, 147, 63,
143, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79,
80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 27, 30, 21, 22,
17, 14, 5, 6, 100, 54, 47, 50, 51, 53, 106, 107, 108, 109, 110, 111,
112, 113, 114, 115, 4, 117, 118, 92, 94, 121, 122, 3, 124, 103, 2, 1,
0, 129, 130, 131, 120, 119, 126, 125, 136, 137, 138, 139, 140, 141, 142, 134,
135, 132, 133, 104, 64, 101, 62, 57, 102, 95, 93, 59, 61, 28, 97, 96,
52, 49, 48, 29, 32, 25, 24, 46, 23, 98, 45, 44, 43, 20, 42, 41,
19, 18, 99, 40, 15, 39, 38, 16, 13, 12, 11, 37, 10, 9, 8, 36,
7, 128, 127, 105, 123, 116, 35, 34, 33, 145, 31, 79, 42, 146, 78, 26,
83, 48, 49, 50, 44, 47, 26, 31, 30, 18, 17, 19, 21, 24, 25, 13,
14, 16, 17, 18, 20, 21, 12, 14, 15, 9, 10, 6, 9, 6, 5, 8,
6, 12, 8, 10, 7, 9, 6, 4, 6, 2, 2, 3, 3, 3, 3, 2, |
| 2ca5ca29 |
};
|
| b53aab1a |
static int read_len_table(uint8_t *dst, GetBitContext *gb, int n) |
| 2ca5ca29 |
{
int i, val, repeat;
|
| b53aab1a |
for (i = 0; i < n;) { |
| 2ca5ca29 |
repeat = get_bits(gb, 3);
val = get_bits(gb, 5);
if (repeat == 0)
repeat = get_bits(gb, 8); |
| b53aab1a |
if (i + repeat > n || get_bits_left(gb) < 0) { |
| 2ca5ca29 |
av_log(NULL, AV_LOG_ERROR, "Error reading huffman table\n"); |
| 62340581 |
return AVERROR_INVALIDDATA; |
| 2ca5ca29 |
}
while (repeat--)
dst[i++] = val;
}
return 0;
}
|
| 4420b414 |
static int generate_joint_tables(HYuvContext *s) |
| 2ca5ca29 |
{ |
| 4420b414 |
int ret; |
| 3dbf5690 |
uint16_t *symbols = av_mallocz(5 << VLC_BITS);
uint16_t *bits;
uint8_t *len;
if (!symbols)
return AVERROR(ENOMEM);
bits = symbols + (1 << VLC_BITS);
len = (uint8_t *)(bits + (1 << VLC_BITS)); |
| 4420b414 |
|
| 4816d63f |
if (s->bitstream_bpp < 24 || s->version > 2) { |
| 2ca5ca29 |
int p, i, y, u; |
| 13f3092b |
for (p = 0; p < 4; p++) { |
| 4816d63f |
int p0 = s->version > 2 ? p : 0; |
| 53167ecf |
for (i = y = 0; y < s->vlc_n; y++) { |
| c1e7fb60 |
int len0 = s->len[p0][y]; |
| 2ca5ca29 |
int limit = VLC_BITS - len0; |
| c1e7fb60 |
if (limit <= 0 || !len0) |
| 2ca5ca29 |
continue; |
| c1e7fb60 |
if ((sign_extend(y, 8) & (s->vlc_n-1)) != y) |
| e6c0da70 |
continue; |
| 53167ecf |
for (u = 0; u < s->vlc_n; u++) { |
| 2ca5ca29 |
int len1 = s->len[p][u]; |
| 0dfc01c2 |
if (len1 > limit || !len1) |
| 2ca5ca29 |
continue; |
| c1e7fb60 |
if ((sign_extend(u, 8) & (s->vlc_n-1)) != u) |
| e6c0da70 |
continue; |
| f67a0d11 |
av_assert0(i < (1 << VLC_BITS)); |
| c065f4a0 |
len[i] = len0 + len1; |
| c1e7fb60 |
bits[i] = (s->bits[p0][y] << len1) + s->bits[p][u]; |
| e6c0da70 |
symbols[i] = (y << 8) + (u & 0xFF); |
| 2ca5ca29 |
i++;
}
} |
| 13f3092b |
ff_free_vlc(&s->vlc[4 + p]);
if ((ret = ff_init_vlc_sparse(&s->vlc[4 + p], VLC_BITS, i, len, 1, 1, |
| 4420b414 |
bits, 2, 2, symbols, 2, 2, 0)) < 0) |
| 3dbf5690 |
goto out; |
| 2ca5ca29 |
}
} else { |
| c065f4a0 |
uint8_t (*map)[4] = (uint8_t(*)[4]) s->pix_bgr_map; |
| 2ca5ca29 |
int i, b, g, r, code;
int p0 = s->decorrelate;
int p1 = !s->decorrelate; |
| c065f4a0 |
/* Restrict the range to +/-16 because that's pretty much guaranteed
* to cover all the combinations that fit in 11 bits total, and it
* does not matter if we miss a few rare codes. */ |
| 2ca5ca29 |
for (i = 0, g = -16; g < 16; g++) { |
| c065f4a0 |
int len0 = s->len[p0][g & 255]; |
| 2ca5ca29 |
int limit0 = VLC_BITS - len0; |
| 0dfc01c2 |
if (limit0 < 2 || !len0) |
| 2ca5ca29 |
continue;
for (b = -16; b < 16; b++) { |
| c065f4a0 |
int len1 = s->len[p1][b & 255]; |
| 2ca5ca29 |
int limit1 = limit0 - len1; |
| 0dfc01c2 |
if (limit1 < 1 || !len1) |
| 2ca5ca29 |
continue;
code = (s->bits[p0][g & 255] << len1) + s->bits[p1][b & 255];
for (r = -16; r < 16; r++) {
int len2 = s->len[2][r & 255]; |
| 0dfc01c2 |
if (len2 > limit1 || !len2) |
| 2ca5ca29 |
continue; |
| f67a0d11 |
av_assert0(i < (1 << VLC_BITS)); |
| c065f4a0 |
len[i] = len0 + len1 + len2; |
| 2ca5ca29 |
bits[i] = (code << len2) + s->bits[2][r & 255];
if (s->decorrelate) {
map[i][G] = g;
map[i][B] = g + b;
map[i][R] = g + r;
} else {
map[i][B] = g;
map[i][G] = b;
map[i][R] = r;
}
i++;
}
}
} |
| 13f3092b |
ff_free_vlc(&s->vlc[4]); |
| 2793b218 |
if ((ret = init_vlc(&s->vlc[4], VLC_BITS, i, len, 1, 1, |
| d0393d79 |
bits, 2, 2, 0)) < 0) |
| 3dbf5690 |
goto out; |
| 2ca5ca29 |
} |
| 3dbf5690 |
ret = 0;
out:
av_freep(&symbols);
return ret; |
| 2ca5ca29 |
}
static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length)
{
GetBitContext gb; |
| d0393d79 |
int i, ret; |
| 13f3092b |
int count = 3; |
| 2ca5ca29 |
|
| d0393d79 |
if ((ret = init_get_bits(&gb, src, length * 8)) < 0)
return ret; |
| 2ca5ca29 |
|
| 13f3092b |
if (s->version > 2)
count = 1 + s->alpha + 2*s->chroma;
for (i = 0; i < count; i++) { |
| 2793b218 |
if ((ret = read_len_table(s->len[i], &gb, s->vlc_n)) < 0) |
| d0393d79 |
return ret; |
| 2793b218 |
if ((ret = ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n)) < 0) |
| d0393d79 |
return ret; |
| 2ca5ca29 |
ff_free_vlc(&s->vlc[i]); |
| 53167ecf |
if ((ret = init_vlc(&s->vlc[i], VLC_BITS, s->vlc_n, s->len[i], 1, 1, |
| f67a0d11 |
s->bits[i], 4, 4, 0)) < 0)
return ret; |
| 2ca5ca29 |
}
|
| 4420b414 |
if ((ret = generate_joint_tables(s)) < 0)
return ret; |
| 2ca5ca29 |
return (get_bits_count(&gb) + 7) / 8;
}
static int read_old_huffman_tables(HYuvContext *s)
{
GetBitContext gb; |
| d0393d79 |
int i, ret; |
| 2ca5ca29 |
init_get_bits(&gb, classic_shift_luma,
classic_shift_luma_table_size * 8); |
| 2793b218 |
if ((ret = read_len_table(s->len[0], &gb, 256)) < 0) |
| d0393d79 |
return ret; |
| 2ca5ca29 |
init_get_bits(&gb, classic_shift_chroma,
classic_shift_chroma_table_size * 8); |
| 2793b218 |
if ((ret = read_len_table(s->len[1], &gb, 256)) < 0) |
| d0393d79 |
return ret; |
| 2ca5ca29 |
|
| c065f4a0 |
for (i = 0; i < 256; i++)
s->bits[0][i] = classic_add_luma[i];
for (i = 0; i < 256; i++)
s->bits[1][i] = classic_add_chroma[i]; |
| 2ca5ca29 |
if (s->bitstream_bpp >= 24) {
memcpy(s->bits[1], s->bits[0], 256 * sizeof(uint32_t)); |
| c065f4a0 |
memcpy(s->len[1], s->len[0], 256 * sizeof(uint8_t)); |
| 2ca5ca29 |
}
memcpy(s->bits[2], s->bits[1], 256 * sizeof(uint32_t)); |
| c065f4a0 |
memcpy(s->len[2], s->len[1], 256 * sizeof(uint8_t)); |
| 2ca5ca29 |
|
| 13f3092b |
for (i = 0; i < 4; i++) { |
| 2ca5ca29 |
ff_free_vlc(&s->vlc[i]); |
| f67a0d11 |
if ((ret = init_vlc(&s->vlc[i], VLC_BITS, 256, s->len[i], 1, 1,
s->bits[i], 4, 4, 0)) < 0)
return ret; |
| 2ca5ca29 |
}
|
| 4420b414 |
if ((ret = generate_joint_tables(s)) < 0)
return ret; |
| 2ca5ca29 |
return 0;
}
|
| c9d39fc8 |
static av_cold int decode_end(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
int i;
ff_huffyuv_common_end(s);
av_freep(&s->bitstream_buffer);
for (i = 0; i < 8; i++)
ff_free_vlc(&s->vlc[i]);
return 0;
}
|
| 2ca5ca29 |
static av_cold int decode_init(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data; |
| d0393d79 |
int ret; |
| 2ca5ca29 |
|
| 9a345802 |
ret = av_image_check_size(avctx->width, avctx->height, 0, avctx);
if (ret < 0)
return ret;
|
| 0d439fbe |
ff_huffyuvdsp_init(&s->hdsp); |
| 13f3092b |
memset(s->vlc, 0, 4 * sizeof(VLC)); |
| 2ca5ca29 |
|
| 469de4f5 |
s->interlaced = avctx->height > 288; |
| c065f4a0 |
s->bgr32 = 1; |
| 2ca5ca29 |
if (avctx->extradata_size) {
if ((avctx->bits_per_coded_sample & 7) &&
avctx->bits_per_coded_sample != 12)
s->version = 1; // do such files exist at all? |
| 27b1e63f |
else if (avctx->extradata_size > 3 && avctx->extradata[3] == 0) |
| 2ca5ca29 |
s->version = 2; |
| 27b1e63f |
else
s->version = 3; |
| 2ca5ca29 |
} else
s->version = 0;
|
| 27b1e63f |
s->bps = 8; |
| 534a8947 |
s->n = 1<<s->bps; |
| 53167ecf |
s->vlc_n = FFMIN(s->n, MAX_VLC_N); |
| 27b1e63f |
s->chroma = 1;
if (s->version >= 2) { |
| 2ca5ca29 |
int method, interlace;
if (avctx->extradata_size < 4) |
| 62340581 |
return AVERROR_INVALIDDATA; |
| 2ca5ca29 |
|
| b7616f57 |
method = avctx->extradata[0]; |
| c065f4a0 |
s->decorrelate = method & 64 ? 1 : 0;
s->predictor = method & 63; |
| 27b1e63f |
if (s->version == 2) { |
| e9cd8f4d |
s->bitstream_bpp = avctx->extradata[1]; |
| 27b1e63f |
if (s->bitstream_bpp == 0)
s->bitstream_bpp = avctx->bits_per_coded_sample & ~7;
} else {
s->bps = (avctx->extradata[1] >> 4) + 1; |
| 534a8947 |
s->n = 1<<s->bps; |
| 53167ecf |
s->vlc_n = FFMIN(s->n, MAX_VLC_N); |
| 27b1e63f |
s->chroma_h_shift = avctx->extradata[1] & 3;
s->chroma_v_shift = (avctx->extradata[1] >> 2) & 3; |
| e9cd8f4d |
s->yuv = !!(avctx->extradata[2] & 1);
s->chroma= !!(avctx->extradata[2] & 3);
s->alpha = !!(avctx->extradata[2] & 4); |
| 27b1e63f |
} |
| b7616f57 |
interlace = (avctx->extradata[2] & 0x30) >> 4; |
| 2ca5ca29 |
s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced; |
| b7616f57 |
s->context = avctx->extradata[2] & 0x40 ? 1 : 0; |
| 2ca5ca29 |
|
| d0393d79 |
if ((ret = read_huffman_tables(s, avctx->extradata + 4,
avctx->extradata_size - 4)) < 0) |
| c9d39fc8 |
goto error; |
| c065f4a0 |
} else { |
| 2ca5ca29 |
switch (avctx->bits_per_coded_sample & 7) {
case 1: |
| c065f4a0 |
s->predictor = LEFT; |
| 2ca5ca29 |
s->decorrelate = 0;
break;
case 2: |
| c065f4a0 |
s->predictor = LEFT; |
| 2ca5ca29 |
s->decorrelate = 1;
break;
case 3: |
| c065f4a0 |
s->predictor = PLANE; |
| 2ca5ca29 |
s->decorrelate = avctx->bits_per_coded_sample >= 24;
break;
case 4: |
| c065f4a0 |
s->predictor = MEDIAN; |
| 2ca5ca29 |
s->decorrelate = 0;
break;
default: |
| c065f4a0 |
s->predictor = LEFT; // OLD |
| 2ca5ca29 |
s->decorrelate = 0;
break;
}
s->bitstream_bpp = avctx->bits_per_coded_sample & ~7; |
| c065f4a0 |
s->context = 0; |
| 2ca5ca29 |
|
| d0393d79 |
if ((ret = read_old_huffman_tables(s)) < 0) |
| c9d39fc8 |
goto error; |
| 2ca5ca29 |
}
|
| 27b1e63f |
if (s->version <= 2) {
switch (s->bitstream_bpp) {
case 12:
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
s->yuv = 1;
break;
case 16: |
| c1e7fb60 |
if (s->yuy2) |
| 27b1e63f |
avctx->pix_fmt = AV_PIX_FMT_YUYV422; |
| c1e7fb60 |
else |
| 27b1e63f |
avctx->pix_fmt = AV_PIX_FMT_YUV422P;
s->yuv = 1;
break;
case 24: |
| c1e7fb60 |
if (s->bgr32) |
| 9bb1af8f |
avctx->pix_fmt = AV_PIX_FMT_0RGB32; |
| c1e7fb60 |
else |
| 27b1e63f |
avctx->pix_fmt = AV_PIX_FMT_BGR24;
break; |
| 9bb1af8f |
case 32:
av_assert0(s->bgr32);
avctx->pix_fmt = AV_PIX_FMT_RGB32;
s->alpha = 1;
break; |
| 27b1e63f |
default: |
| c9d39fc8 |
ret = AVERROR_INVALIDDATA;
goto error; |
| 2ca5ca29 |
} |
| 27b1e63f |
av_pix_fmt_get_chroma_sub_sample(avctx->pix_fmt,
&s->chroma_h_shift,
&s->chroma_v_shift);
} else {
switch ( (s->chroma<<10) | (s->yuv<<9) | (s->alpha<<8) | ((s->bps-1)<<4) | s->chroma_h_shift | (s->chroma_v_shift<<2)) { |
| 60ab582a |
case 0x070:
avctx->pix_fmt = AV_PIX_FMT_GRAY8;
break; |
| 53167ecf |
case 0x0F0:
avctx->pix_fmt = AV_PIX_FMT_GRAY16;
break; |
| 13f3092b |
case 0x170:
avctx->pix_fmt = AV_PIX_FMT_GRAY8A;
break; |
| 22f59a8c |
case 0x470:
avctx->pix_fmt = AV_PIX_FMT_GBRP;
break; |
| 6369766f |
case 0x480:
avctx->pix_fmt = AV_PIX_FMT_GBRP9;
break;
case 0x490:
avctx->pix_fmt = AV_PIX_FMT_GBRP10;
break;
case 0x4B0:
avctx->pix_fmt = AV_PIX_FMT_GBRP12;
break;
case 0x4D0:
avctx->pix_fmt = AV_PIX_FMT_GBRP14;
break;
case 0x4F0:
avctx->pix_fmt = AV_PIX_FMT_GBRP16;
break; |
| 13f3092b |
case 0x570:
avctx->pix_fmt = AV_PIX_FMT_GBRAP;
break; |
| 27b1e63f |
case 0x670:
avctx->pix_fmt = AV_PIX_FMT_YUV444P;
break; |
| ef028212 |
case 0x680:
avctx->pix_fmt = AV_PIX_FMT_YUV444P9;
break;
case 0x690:
avctx->pix_fmt = AV_PIX_FMT_YUV444P10;
break;
case 0x6B0:
avctx->pix_fmt = AV_PIX_FMT_YUV444P12;
break;
case 0x6D0:
avctx->pix_fmt = AV_PIX_FMT_YUV444P14;
break; |
| 53167ecf |
case 0x6F0:
avctx->pix_fmt = AV_PIX_FMT_YUV444P16;
break; |
| 27b1e63f |
case 0x671:
avctx->pix_fmt = AV_PIX_FMT_YUV422P;
break; |
| ef028212 |
case 0x681:
avctx->pix_fmt = AV_PIX_FMT_YUV422P9;
break;
case 0x691:
avctx->pix_fmt = AV_PIX_FMT_YUV422P10;
break;
case 0x6B1:
avctx->pix_fmt = AV_PIX_FMT_YUV422P12;
break;
case 0x6D1:
avctx->pix_fmt = AV_PIX_FMT_YUV422P14;
break; |
| 53167ecf |
case 0x6F1:
avctx->pix_fmt = AV_PIX_FMT_YUV422P16;
break; |
| 27b1e63f |
case 0x672:
avctx->pix_fmt = AV_PIX_FMT_YUV411P;
break;
case 0x674:
avctx->pix_fmt = AV_PIX_FMT_YUV440P;
break;
case 0x675:
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
break; |
| ef028212 |
case 0x685:
avctx->pix_fmt = AV_PIX_FMT_YUV420P9;
break; |
| b53aab1a |
case 0x695:
avctx->pix_fmt = AV_PIX_FMT_YUV420P10;
break; |
| ef028212 |
case 0x6B5:
avctx->pix_fmt = AV_PIX_FMT_YUV420P12;
break;
case 0x6D5:
avctx->pix_fmt = AV_PIX_FMT_YUV420P14;
break; |
| 53167ecf |
case 0x6F5:
avctx->pix_fmt = AV_PIX_FMT_YUV420P16;
break; |
| 27b1e63f |
case 0x67A:
avctx->pix_fmt = AV_PIX_FMT_YUV410P;
break; |
| 13f3092b |
case 0x770:
avctx->pix_fmt = AV_PIX_FMT_YUVA444P;
break; |
| 3d879279 |
case 0x780:
avctx->pix_fmt = AV_PIX_FMT_YUVA444P9;
break;
case 0x790:
avctx->pix_fmt = AV_PIX_FMT_YUVA444P10;
break; |
| 53167ecf |
case 0x7F0:
avctx->pix_fmt = AV_PIX_FMT_YUVA444P16;
break; |
| 13f3092b |
case 0x771:
avctx->pix_fmt = AV_PIX_FMT_YUVA422P;
break; |
| 3d879279 |
case 0x781:
avctx->pix_fmt = AV_PIX_FMT_YUVA422P9;
break;
case 0x791:
avctx->pix_fmt = AV_PIX_FMT_YUVA422P10;
break; |
| 53167ecf |
case 0x7F1:
avctx->pix_fmt = AV_PIX_FMT_YUVA422P16;
break; |
| 13f3092b |
case 0x775:
avctx->pix_fmt = AV_PIX_FMT_YUVA420P;
break; |
| 3d879279 |
case 0x785:
avctx->pix_fmt = AV_PIX_FMT_YUVA420P9;
break; |
| b53aab1a |
case 0x795:
avctx->pix_fmt = AV_PIX_FMT_YUVA420P10;
break; |
| 53167ecf |
case 0x7F5:
avctx->pix_fmt = AV_PIX_FMT_YUVA420P16;
break; |
| b53aab1a |
default: |
| c9d39fc8 |
ret = AVERROR_INVALIDDATA;
goto error; |
| 2ca5ca29 |
}
}
|
| e6d1c66d |
ff_huffyuv_common_init(avctx); |
| 27b1e63f |
|
| def18e54 |
if ((avctx->pix_fmt == AV_PIX_FMT_YUV422P || avctx->pix_fmt == AV_PIX_FMT_YUV420P) && avctx->width & 1) {
av_log(avctx, AV_LOG_ERROR, "width must be even for this colorspace\n"); |
| c9d39fc8 |
ret = AVERROR_INVALIDDATA;
goto error; |
| def18e54 |
} |
| a7153444 |
if (s->predictor == MEDIAN && avctx->pix_fmt == AV_PIX_FMT_YUV422P &&
avctx->width % 4) { |
| 296b01d7 |
av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 " |
| a7153444 |
"for this combination of colorspace and predictor type.\n"); |
| c9d39fc8 |
ret = AVERROR_INVALIDDATA;
goto error; |
| def18e54 |
} |
| a7153444 |
|
| 2793b218 |
if ((ret = ff_huffyuv_alloc_temp(s)) < 0) { |
| def18e54 |
ff_huffyuv_common_end(s); |
| c9d39fc8 |
goto error; |
| def18e54 |
} |
| 2ca5ca29 |
return 0; |
| c9d39fc8 |
error:
decode_end(avctx);
return ret; |
| 2ca5ca29 |
}
static av_cold int decode_init_thread_copy(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data; |
| d0393d79 |
int i, ret; |
| 2ca5ca29 |
|
| 2793b218 |
if ((ret = ff_huffyuv_alloc_temp(s)) < 0) { |
| def18e54 |
ff_huffyuv_common_end(s); |
| d0393d79 |
return ret; |
| def18e54 |
} |
| 2ca5ca29 |
|
| 13f3092b |
for (i = 0; i < 8; i++) |
| 2ca5ca29 |
s->vlc[i].table = NULL;
|
| 27b1e63f |
if (s->version >= 2) { |
| d0393d79 |
if ((ret = read_huffman_tables(s, avctx->extradata + 4,
avctx->extradata_size)) < 0)
return ret; |
| 2ca5ca29 |
} else { |
| d0393d79 |
if ((ret = read_old_huffman_tables(s)) < 0)
return ret; |
| 2ca5ca29 |
}
return 0;
}
|
| 35dae622 |
/** Subset of GET_VLC for use in hand-roller VLC code */
#define VLC_INTERN(dst, table, gb, name, bits, max_depth) \ |
| 11b47038 |
code = table[index][0]; \
n = table[index][1]; \
if (max_depth > 1 && n < 0) { \
LAST_SKIP_BITS(name, gb, bits); \
UPDATE_CACHE(name, gb); \
\
nb_bits = -n; \
index = SHOW_UBITS(name, gb, nb_bits) + code; \
code = table[index][0]; \
n = table[index][1]; \
if (max_depth > 2 && n < 0) { \
LAST_SKIP_BITS(name, gb, nb_bits); \
UPDATE_CACHE(name, gb); \
\
nb_bits = -n; \
index = SHOW_UBITS(name, gb, nb_bits) + code; \
code = table[index][0]; \
n = table[index][1]; \
} \
} \
dst = code; \
LAST_SKIP_BITS(name, gb, n)
#define GET_VLC_DUAL(dst0, dst1, name, gb, dtable, table1, table2, \ |
| 7eb5b20a |
bits, max_depth, OP) \ |
| 11b47038 |
do { \
unsigned int index = SHOW_UBITS(name, gb, bits); \ |
| 6848325a |
int code, n = dtable[index][1]; \ |
| 11b47038 |
\ |
| 9dc17919 |
if (n<=0) { \ |
| 11b47038 |
int nb_bits; \ |
| 35dae622 |
VLC_INTERN(dst0, table1, gb, name, bits, max_depth); \ |
| 11b47038 |
\
UPDATE_CACHE(re, gb); \
index = SHOW_UBITS(name, gb, bits); \ |
| 35dae622 |
VLC_INTERN(dst1, table2, gb, name, bits, max_depth); \ |
| 9dc17919 |
} else { \
code = dtable[index][0]; \
OP(dst0, dst1, code); \
LAST_SKIP_BITS(name, gb, n); \ |
| 11b47038 |
} \
} while (0)
|
| 7eb5b20a |
#define OP8bits(dst0, dst1, code) dst0 = code>>8; dst1 = code
|
| c065f4a0 |
#define READ_2PIX(dst0, dst1, plane1) \ |
| c1e7fb60 |
UPDATE_CACHE(re, &s->gb); \
GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane1].table, \ |
| 7eb5b20a |
s->vlc[0].table, s->vlc[plane1].table, VLC_BITS, 3, OP8bits) |
| 2ca5ca29 |
static void decode_422_bitstream(HYuvContext *s, int count)
{ |
| f6577bd9 |
int i, icount; |
| 11b47038 |
OPEN_READER(re, &s->gb); |
| 2ca5ca29 |
count /= 2;
|
| f6577bd9 |
icount = get_bits_left(&s->gb) / (32 * 4);
if (count >= icount) {
for (i = 0; i < icount; i++) { |
| c065f4a0 |
READ_2PIX(s->temp[0][2 * i], s->temp[1][i], 1); |
| 2ca5ca29 |
READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
} |
| ba47d519 |
for (; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| f6577bd9 |
READ_2PIX(s->temp[0][2 * i ], s->temp[1][i], 1); |
| ba47d519 |
if (BITS_LEFT(re, &s->gb) <= 0) break; |
| f6577bd9 |
READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
} |
| 42b6805c |
for (; i < count; i++)
s->temp[0][2 * i ] = s->temp[1][i] = |
| 20c7baf8 |
s->temp[0][2 * i + 1] = s->temp[2][i] = 0; |
| 2ca5ca29 |
} else {
for (i = 0; i < count; i++) { |
| c065f4a0 |
READ_2PIX(s->temp[0][2 * i], s->temp[1][i], 1); |
| 2ca5ca29 |
READ_2PIX(s->temp[0][2 * i + 1], s->temp[2][i], 2);
}
} |
| 11b47038 |
CLOSE_READER(re, &s->gb); |
| 2ca5ca29 |
}
|
| 7eb5b20a |
#define READ_2PIX_PLANE(dst0, dst1, plane, OP) \ |
| a3702040 |
UPDATE_CACHE(re, &s->gb); \
GET_VLC_DUAL(dst0, dst1, re, &s->gb, s->vlc[4+plane].table, \ |
| 7eb5b20a |
s->vlc[plane].table, s->vlc[plane].table, VLC_BITS, 3, OP)
#define OP14bits(dst0, dst1, code) dst0 = code>>8; dst1 = sign_extend(code, 8) |
| 53167ecf |
|
| 7eb5b20a |
/* TODO instead of restarting the read when the code isn't in the first level
* of the joint table, jump into the 2nd level of the individual table. */ |
| 53167ecf |
#define READ_2PIX_PLANE16(dst0, dst1, plane){\
dst0 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\
dst0 += get_bits(&s->gb, 2);\
dst1 = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;\
dst1 += get_bits(&s->gb, 2);\
} |
| f75baa6c |
static void decode_plane_bitstream(HYuvContext *s, int width, int plane) |
| 27b1e63f |
{ |
| f75baa6c |
int i, count = width/2; |
| 27b1e63f |
|
| b53aab1a |
if (s->bps <= 8) { |
| a3702040 |
OPEN_READER(re, &s->gb); |
| e9c47705 |
if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| ba47d519 |
for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 7eb5b20a |
READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits); |
| b53aab1a |
}
} else {
for(i=0; i<count; i++){ |
| 7eb5b20a |
READ_2PIX_PLANE(s->temp[0][2 * i], s->temp[0][2 * i + 1], plane, OP8bits); |
| b53aab1a |
} |
| 27b1e63f |
} |
| f75baa6c |
if( width&1 && BITS_LEFT(re, &s->gb)>0 ) {
unsigned int index;
int nb_bits, code, n;
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS);
VLC_INTERN(s->temp[0][width-1], s->vlc[plane].table,
&s->gb, re, VLC_BITS, 3);
} |
| a3702040 |
CLOSE_READER(re, &s->gb); |
| 53167ecf |
} else if (s->bps <= 14) { |
| 7eb5b20a |
OPEN_READER(re, &s->gb); |
| e9c47705 |
if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| ba47d519 |
for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 7eb5b20a |
READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits); |
| 53167ecf |
}
} else {
for(i=0; i<count; i++){ |
| 7eb5b20a |
READ_2PIX_PLANE(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane, OP14bits); |
| 53167ecf |
}
} |
| f75baa6c |
if( width&1 && BITS_LEFT(re, &s->gb)>0 ) {
unsigned int index;
int nb_bits, code, n;
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS);
VLC_INTERN(s->temp16[0][width-1], s->vlc[plane].table,
&s->gb, re, VLC_BITS, 3);
} |
| 7eb5b20a |
CLOSE_READER(re, &s->gb); |
| 27b1e63f |
} else { |
| e9c47705 |
if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| b53aab1a |
for (i = 0; i < count && get_bits_left(&s->gb) > 0; i++) {
READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane);
}
} else {
for(i=0; i<count; i++){
READ_2PIX_PLANE16(s->temp16[0][2 * i], s->temp16[0][2 * i + 1], plane);
} |
| 27b1e63f |
} |
| f75baa6c |
if( width&1 && get_bits_left(&s->gb)>0 ) {
int dst = get_vlc2(&s->gb, s->vlc[plane].table, VLC_BITS, 3)<<2;
s->temp16[0][width-1] = dst + get_bits(&s->gb, 2);
} |
| 27b1e63f |
}
}
|
| 2ca5ca29 |
static void decode_gray_bitstream(HYuvContext *s, int count)
{
int i; |
| 11b47038 |
OPEN_READER(re, &s->gb); |
| c1e7fb60 |
count /= 2; |
| 2ca5ca29 |
|
| e9c47705 |
if (count >= (get_bits_left(&s->gb)) / (32 * 2)) { |
| ba47d519 |
for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| 2ca5ca29 |
READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0);
}
} else { |
| c065f4a0 |
for (i = 0; i < count; i++) { |
| 2ca5ca29 |
READ_2PIX(s->temp[0][2 * i], s->temp[0][2 * i + 1], 0);
}
} |
| 11b47038 |
CLOSE_READER(re, &s->gb); |
| 2ca5ca29 |
}
static av_always_inline void decode_bgr_1(HYuvContext *s, int count,
int decorrelate, int alpha)
{
int i; |
| deadcf5e |
OPEN_READER(re, &s->gb);
|
| ba47d519 |
for (i = 0; i < count && BITS_LEFT(re, &s->gb) > 0; i++) { |
| deadcf5e |
unsigned int index; |
| 331b1f7d |
int code, n, nb_bits; |
| deadcf5e |
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS);
n = s->vlc[4].table[index][1];
|
| 0d632b35 |
if (n>0) {
code = s->vlc[4].table[index][0]; |
| c065f4a0 |
*(uint32_t *) &s->temp[0][4 * i] = s->pix_bgr_map[code]; |
| deadcf5e |
LAST_SKIP_BITS(re, &s->gb, n); |
| 2ca5ca29 |
} else { |
| c1e7fb60 |
if (decorrelate) { |
| 35dae622 |
VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table,
&s->gb, re, VLC_BITS, 3); |
| deadcf5e |
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 35dae622 |
VLC_INTERN(code, s->vlc[0].table, &s->gb, re, VLC_BITS, 3); |
| deadcf5e |
s->temp[0][4 * i + B] = code + s->temp[0][4 * i + G];
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 35dae622 |
VLC_INTERN(code, s->vlc[2].table, &s->gb, re, VLC_BITS, 3); |
| deadcf5e |
s->temp[0][4 * i + R] = code + s->temp[0][4 * i + G];
} else { |
| 35dae622 |
VLC_INTERN(s->temp[0][4 * i + B], s->vlc[0].table,
&s->gb, re, VLC_BITS, 3); |
| deadcf5e |
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 35dae622 |
VLC_INTERN(s->temp[0][4 * i + G], s->vlc[1].table,
&s->gb, re, VLC_BITS, 3); |
| deadcf5e |
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS); |
| 35dae622 |
VLC_INTERN(s->temp[0][4 * i + R], s->vlc[2].table,
&s->gb, re, VLC_BITS, 3); |
| deadcf5e |
} |
| 2ca5ca29 |
} |
| 331b1f7d |
if (alpha) {
UPDATE_CACHE(re, &s->gb);
index = SHOW_UBITS(re, &s->gb, VLC_BITS);
VLC_INTERN(s->temp[0][4 * i + A], s->vlc[2].table,
&s->gb, re, VLC_BITS, 3);
} else
s->temp[0][4 * i + A] = 0; |
| 2ca5ca29 |
} |
| deadcf5e |
CLOSE_READER(re, &s->gb); |
| 2ca5ca29 |
}
static void decode_bgr_bitstream(HYuvContext *s, int count)
{
if (s->decorrelate) { |
| c065f4a0 |
if (s->bitstream_bpp == 24) |
| 2ca5ca29 |
decode_bgr_1(s, count, 1, 0);
else
decode_bgr_1(s, count, 1, 1);
} else { |
| c065f4a0 |
if (s->bitstream_bpp == 24) |
| 2ca5ca29 |
decode_bgr_1(s, count, 0, 0);
else
decode_bgr_1(s, count, 0, 1);
}
}
|
| 759001c5 |
static void draw_slice(HYuvContext *s, AVFrame *frame, int y) |
| 2ca5ca29 |
{
int h, cy, i;
int offset[AV_NUM_DATA_POINTERS];
|
| f929ab05 |
if (!s->avctx->draw_horiz_band) |
| 2ca5ca29 |
return;
|
| c065f4a0 |
h = y - s->last_slice_end; |
| 2ca5ca29 |
y -= h;
|
| c065f4a0 |
if (s->bitstream_bpp == 12)
cy = y >> 1;
else |
| 2ca5ca29 |
cy = y;
|
| 759001c5 |
offset[0] = frame->linesize[0] * y;
offset[1] = frame->linesize[1] * cy;
offset[2] = frame->linesize[2] * cy; |
| 2ca5ca29 |
for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
offset[i] = 0;
emms_c();
|
| 759001c5 |
s->avctx->draw_horiz_band(s->avctx, frame, offset, y, 3, h); |
| 2ca5ca29 |
s->last_slice_end = y + h;
}
|
| b53aab1a |
static int left_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, int w, int acc)
{
if (s->bps <= 8) { |
| e2abc0d5 |
return s->hdsp.add_hfyu_left_pred(dst, src, w, acc); |
| b53aab1a |
} else { |
| 7b4c4605 |
return s->llviddsp.add_hfyu_left_pred_int16(( uint16_t *)dst, (const uint16_t *)src, s->n-1, w, acc); |
| b53aab1a |
}
}
static void add_bytes(HYuvContext *s, uint8_t *dst, uint8_t *src, int w)
{
if (s->bps <= 8) { |
| e2abc0d5 |
s->hdsp.add_bytes(dst, src, w); |
| b53aab1a |
} else { |
| f70d7eb2 |
s->llviddsp.add_int16((uint16_t*)dst, (const uint16_t*)src, s->n - 1, w); |
| b53aab1a |
}
}
|
| 2fd39642 |
static void add_median_prediction(HYuvContext *s, uint8_t *dst, const uint8_t *src, const uint8_t *diff, int w, int *left, int *left_top)
{
if (s->bps <= 8) { |
| e2abc0d5 |
s->hdsp.add_hfyu_median_pred(dst, src, diff, w, left, left_top); |
| 2fd39642 |
} else { |
| 550ae6c0 |
s->llviddsp.add_hfyu_median_pred_int16((uint16_t *)dst, (const uint16_t *)src, (const uint16_t *)diff, s->n-1, w, left, left_top); |
| 2fd39642 |
}
} |
| 2ca5ca29 |
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
const uint8_t *buf = avpkt->data; |
| c065f4a0 |
int buf_size = avpkt->size; |
| 2ca5ca29 |
HYuvContext *s = avctx->priv_data; |
| c065f4a0 |
const int width = s->width;
const int width2 = s->width >> 1; |
| 2ca5ca29 |
const int height = s->height;
int fake_ystride, fake_ustride, fake_vstride; |
| 759001c5 |
ThreadFrame frame = { .f = data }; |
| c065f4a0 |
AVFrame *const p = data; |
| def18e54 |
int table_size = 0, ret; |
| 2ca5ca29 |
|
| def18e54 |
av_fast_padded_malloc(&s->bitstream_buffer, |
| 2ca5ca29 |
&s->bitstream_buffer_size, |
| def18e54 |
buf_size); |
| 2ca5ca29 |
if (!s->bitstream_buffer)
return AVERROR(ENOMEM);
|
| c67b449b |
s->bdsp.bswap_buf((uint32_t *) s->bitstream_buffer,
(const uint32_t *) buf, buf_size / 4); |
| 2ca5ca29 |
|
| 1ec94b0f |
if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0) |
| def18e54 |
return ret; |
| 2ca5ca29 |
if (s->context) {
table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size);
if (table_size < 0) |
| d0393d79 |
return table_size; |
| 2ca5ca29 |
}
|
| c065f4a0 |
if ((unsigned) (buf_size - table_size) >= INT_MAX / 8) |
| def18e54 |
return AVERROR_INVALIDDATA; |
| 2ca5ca29 |
|
| d0393d79 |
if ((ret = init_get_bits(&s->gb, s->bitstream_buffer + table_size,
(buf_size - table_size) * 8)) < 0)
return ret; |
| 2ca5ca29 |
|
| c065f4a0 |
fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0];
fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1];
fake_vstride = s->interlaced ? p->linesize[2] * 2 : p->linesize[2]; |
| 2ca5ca29 |
s->last_slice_end = 0;
|
| 27b1e63f |
if (s->version > 2) {
int plane;
for(plane = 0; plane < 1 + 2*s->chroma + s->alpha; plane++) {
int left, lefttop, y;
int w = width;
int h = height;
int fake_stride = fake_ystride;
if (s->chroma && (plane == 1 || plane == 2)) {
w >>= s->chroma_h_shift;
h >>= s->chroma_v_shift;
fake_stride = plane == 1 ? fake_ustride : fake_vstride;
}
switch (s->predictor) {
case LEFT:
case PLANE:
decode_plane_bitstream(s, w, plane); |
| b53aab1a |
left = left_prediction(s, p->data[plane], s->temp[0], w, 0); |
| 27b1e63f |
for (y = 1; y < h; y++) {
uint8_t *dst = p->data[plane] + p->linesize[plane]*y;
decode_plane_bitstream(s, w, plane); |
| b53aab1a |
left = left_prediction(s, dst, s->temp[0], w, left); |
| 27b1e63f |
if (s->predictor == PLANE) {
if (y > s->interlaced) { |
| b53aab1a |
add_bytes(s, dst, dst - fake_stride, w); |
| 27b1e63f |
}
}
}
break;
case MEDIAN:
decode_plane_bitstream(s, w, plane); |
| b53aab1a |
left= left_prediction(s, p->data[plane], s->temp[0], w, 0); |
| 27b1e63f |
y = 1;
/* second line is left predicted for interlaced case */
if (s->interlaced) {
decode_plane_bitstream(s, w, plane); |
| b53aab1a |
left = left_prediction(s, p->data[plane] + p->linesize[plane], s->temp[0], w, left); |
| 27b1e63f |
y++;
}
lefttop = p->data[plane][0];
decode_plane_bitstream(s, w, plane); |
| 2fd39642 |
add_median_prediction(s, p->data[plane] + fake_stride, p->data[plane], s->temp[0], w, &left, &lefttop); |
| 27b1e63f |
y++;
for (; y<h; y++) {
uint8_t *dst;
decode_plane_bitstream(s, w, plane);
dst = p->data[plane] + p->linesize[plane] * y;
|
| 2fd39642 |
add_median_prediction(s, dst, dst - fake_stride, s->temp[0], w, &left, &lefttop); |
| 27b1e63f |
}
break;
}
}
draw_slice(s, p, height);
} else if (s->bitstream_bpp < 24) { |
| 2ca5ca29 |
int y, cy;
int lefty, leftu, leftv;
int lefttopy, lefttopu, lefttopv;
if (s->yuy2) {
p->data[0][3] = get_bits(&s->gb, 8);
p->data[0][2] = get_bits(&s->gb, 8);
p->data[0][1] = get_bits(&s->gb, 8);
p->data[0][0] = get_bits(&s->gb, 8);
av_log(avctx, AV_LOG_ERROR,
"YUY2 output is not implemented yet\n"); |
| def18e54 |
return AVERROR_PATCHWELCOME; |
| 2ca5ca29 |
} else { |
| c065f4a0 |
leftv =
p->data[2][0] = get_bits(&s->gb, 8);
lefty =
p->data[0][1] = get_bits(&s->gb, 8);
leftu =
p->data[1][0] = get_bits(&s->gb, 8);
p->data[0][0] = get_bits(&s->gb, 8); |
| 2ca5ca29 |
switch (s->predictor) {
case LEFT:
case PLANE: |
| c065f4a0 |
decode_422_bitstream(s, width - 2);
lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + 2, s->temp[0],
width - 2, lefty); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + 1, s->temp[1], width2 - 1, leftu);
leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + 1, s->temp[2], width2 - 1, leftv); |
| 2ca5ca29 |
}
for (cy = y = 1; y < s->height; y++, cy++) {
uint8_t *ydst, *udst, *vdst;
if (s->bitstream_bpp == 12) {
decode_gray_bitstream(s, width);
ydst = p->data[0] + p->linesize[0] * y;
|
| c065f4a0 |
lefty = s->hdsp.add_hfyu_left_pred(ydst, s->temp[0],
width, lefty); |
| 2ca5ca29 |
if (s->predictor == PLANE) {
if (y > s->interlaced) |
| 0d439fbe |
s->hdsp.add_bytes(ydst, ydst - fake_ystride, width); |
| 2ca5ca29 |
}
y++; |
| c065f4a0 |
if (y >= s->height)
break; |
| 2ca5ca29 |
}
|
| 759001c5 |
draw_slice(s, p, y); |
| 2ca5ca29 |
|
| c065f4a0 |
ydst = p->data[0] + p->linesize[0] * y;
udst = p->data[1] + p->linesize[1] * cy;
vdst = p->data[2] + p->linesize[2] * cy; |
| 2ca5ca29 |
decode_422_bitstream(s, width); |
| c065f4a0 |
lefty = s->hdsp.add_hfyu_left_pred(ydst, s->temp[0],
width, lefty); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
leftu = s->hdsp.add_hfyu_left_pred(udst, s->temp[1], width2, leftu);
leftv = s->hdsp.add_hfyu_left_pred(vdst, s->temp[2], width2, leftv); |
| 2ca5ca29 |
}
if (s->predictor == PLANE) {
if (cy > s->interlaced) { |
| 0d439fbe |
s->hdsp.add_bytes(ydst, ydst - fake_ystride, width); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
s->hdsp.add_bytes(udst, udst - fake_ustride, width2);
s->hdsp.add_bytes(vdst, vdst - fake_vstride, width2); |
| 2ca5ca29 |
}
}
}
} |
| 759001c5 |
draw_slice(s, p, height); |
| 2ca5ca29 |
break;
case MEDIAN:
/* first line except first 2 pixels is left predicted */
decode_422_bitstream(s, width - 2); |
| c065f4a0 |
lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + 2, s->temp[0],
width - 2, lefty); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + 1, s->temp[1], width2 - 1, leftu);
leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + 1, s->temp[2], width2 - 1, leftv); |
| 2ca5ca29 |
}
cy = y = 1;
/* second line is left predicted for interlaced case */
if (s->interlaced) {
decode_422_bitstream(s, width); |
| c065f4a0 |
lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + p->linesize[0],
s->temp[0], width, lefty); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + p->linesize[2], s->temp[1], width2, leftu);
leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + p->linesize[1], s->temp[2], width2, leftv); |
| 2ca5ca29 |
} |
| c065f4a0 |
y++;
cy++; |
| 2ca5ca29 |
}
/* next 4 pixels are left predicted too */
decode_422_bitstream(s, 4); |
| c065f4a0 |
lefty = s->hdsp.add_hfyu_left_pred(p->data[0] + fake_ystride,
s->temp[0], 4, lefty); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
leftu = s->hdsp.add_hfyu_left_pred(p->data[1] + fake_ustride, s->temp[1], 2, leftu);
leftv = s->hdsp.add_hfyu_left_pred(p->data[2] + fake_vstride, s->temp[2], 2, leftv); |
| 2ca5ca29 |
}
/* next line except the first 4 pixels is median predicted */
lefttopy = p->data[0][3];
decode_422_bitstream(s, width - 4); |
| c065f4a0 |
s->hdsp.add_hfyu_median_pred(p->data[0] + fake_ystride + 4,
p->data[0] + 4, s->temp[0],
width - 4, &lefty, &lefttopy); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 2ca5ca29 |
lefttopu = p->data[1][1];
lefttopv = p->data[2][1]; |
| 0d439fbe |
s->hdsp.add_hfyu_median_pred(p->data[1] + fake_ustride + 2, p->data[1] + 2, s->temp[1], width2 - 2, &leftu, &lefttopu);
s->hdsp.add_hfyu_median_pred(p->data[2] + fake_vstride + 2, p->data[2] + 2, s->temp[2], width2 - 2, &leftv, &lefttopv); |
| 2ca5ca29 |
} |
| c065f4a0 |
y++;
cy++; |
| 2ca5ca29 |
|
| c065f4a0 |
for (; y < height; y++, cy++) { |
| 2ca5ca29 |
uint8_t *ydst, *udst, *vdst;
if (s->bitstream_bpp == 12) {
while (2 * cy > y) {
decode_gray_bitstream(s, width);
ydst = p->data[0] + p->linesize[0] * y; |
| c065f4a0 |
s->hdsp.add_hfyu_median_pred(ydst, ydst - fake_ystride,
s->temp[0], width,
&lefty, &lefttopy); |
| 2ca5ca29 |
y++;
} |
| c065f4a0 |
if (y >= height)
break; |
| 2ca5ca29 |
} |
| 759001c5 |
draw_slice(s, p, y); |
| 2ca5ca29 |
decode_422_bitstream(s, width);
ydst = p->data[0] + p->linesize[0] * y;
udst = p->data[1] + p->linesize[1] * cy;
vdst = p->data[2] + p->linesize[2] * cy;
|
| c065f4a0 |
s->hdsp.add_hfyu_median_pred(ydst, ydst - fake_ystride,
s->temp[0], width,
&lefty, &lefttopy); |
| 7c6eb0a1 |
if (!(s->flags & AV_CODEC_FLAG_GRAY)) { |
| 0d439fbe |
s->hdsp.add_hfyu_median_pred(udst, udst - fake_ustride, s->temp[1], width2, &leftu, &lefttopu);
s->hdsp.add_hfyu_median_pred(vdst, vdst - fake_vstride, s->temp[2], width2, &leftv, &lefttopv); |
| 2ca5ca29 |
}
}
|
| 759001c5 |
draw_slice(s, p, height); |
| 2ca5ca29 |
break;
}
}
} else {
int y; |
| 25e6310a |
uint8_t left[4]; |
| 2ca5ca29 |
const int last_line = (height - 1) * p->linesize[0];
if (s->bitstream_bpp == 32) { |
| c1e7fb60 |
left[A] = p->data[0][last_line + A] = get_bits(&s->gb, 8);
left[R] = p->data[0][last_line + R] = get_bits(&s->gb, 8);
left[G] = p->data[0][last_line + G] = get_bits(&s->gb, 8);
left[B] = p->data[0][last_line + B] = get_bits(&s->gb, 8); |
| 2ca5ca29 |
} else { |
| c1e7fb60 |
left[R] = p->data[0][last_line + R] = get_bits(&s->gb, 8);
left[G] = p->data[0][last_line + G] = get_bits(&s->gb, 8);
left[B] = p->data[0][last_line + B] = get_bits(&s->gb, 8);
left[A] = p->data[0][last_line + A] = 255; |
| 2ca5ca29 |
skip_bits(&s->gb, 8);
}
if (s->bgr32) {
switch (s->predictor) {
case LEFT:
case PLANE:
decode_bgr_bitstream(s, width - 1); |
| c065f4a0 |
s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + last_line + 4, |
| c1e7fb60 |
s->temp[0], width - 1, left); |
| 2ca5ca29 |
|
| c065f4a0 |
for (y = s->height - 2; y >= 0; y--) { // Yes it is stored upside down. |
| 2ca5ca29 |
decode_bgr_bitstream(s, width);
|
| c065f4a0 |
s->hdsp.add_hfyu_left_pred_bgr32(p->data[0] + p->linesize[0] * y, |
| c1e7fb60 |
s->temp[0], width, left); |
| 2ca5ca29 |
if (s->predictor == PLANE) { |
| c065f4a0 |
if (s->bitstream_bpp != 32) |
| c1e7fb60 |
left[A] = 0; |
| 2f1de5ca |
if (y < s->height - 1 - s->interlaced) { |
| 0d439fbe |
s->hdsp.add_bytes(p->data[0] + p->linesize[0] * y,
p->data[0] + p->linesize[0] * y + |
| 2f1de5ca |
fake_ystride, 4 * width); |
| 2ca5ca29 |
}
}
}
// just 1 large slice as this is not possible in reverse order |
| 759001c5 |
draw_slice(s, p, height); |
| 2ca5ca29 |
break;
default:
av_log(avctx, AV_LOG_ERROR,
"prediction type not supported!\n");
} |
| c065f4a0 |
} else { |
| 2ca5ca29 |
av_log(avctx, AV_LOG_ERROR,
"BGR24 output is not implemented yet\n"); |
| def18e54 |
return AVERROR_PATCHWELCOME; |
| 2ca5ca29 |
}
}
emms_c();
*got_frame = 1;
return (get_bits_count(&s->gb) + 31) / 32 * 4 + table_size;
}
AVCodec ff_huffyuv_decoder = {
.name = "huffyuv", |
| b2bed932 |
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv / HuffYUV"), |
| 2ca5ca29 |
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_HUFFYUV,
.priv_data_size = sizeof(HYuvContext),
.init = decode_init,
.close = decode_end,
.decode = decode_frame, |
| def97856 |
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND |
AV_CODEC_CAP_FRAME_THREADS, |
| 2ca5ca29 |
.init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
};
#if CONFIG_FFVHUFF_DECODER
AVCodec ff_ffvhuff_decoder = {
.name = "ffvhuff", |
| b2bed932 |
.long_name = NULL_IF_CONFIG_SMALL("Huffyuv FFmpeg variant"), |
| 2ca5ca29 |
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_FFVHUFF,
.priv_data_size = sizeof(HYuvContext),
.init = decode_init,
.close = decode_end,
.decode = decode_frame, |
| def97856 |
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND |
AV_CODEC_CAP_FRAME_THREADS, |
| 2ca5ca29 |
.init_thread_copy = ONLY_IF_THREADS_ENABLED(decode_init_thread_copy),
}; |
| c065f4a0 |
#endif /* CONFIG_FFVHUFF_DECODER */ |