Revision 905ef0d0
| libavcodec/Makefile | ||
|---|---|---|
| 376 | 376 |
vorbis_data.o |
| 377 | 377 |
OBJS-$(CONFIG_VP3_DECODER) += vp3.o vp3dsp.o |
| 378 | 378 |
OBJS-$(CONFIG_VP5_DECODER) += vp5.o vp56.o vp56data.o vp56dsp.o \ |
| 379 |
vp3dsp.o cabac.o
|
|
| 379 |
vp3dsp.o vp56rac.o
|
|
| 380 | 380 |
OBJS-$(CONFIG_VP6_DECODER) += vp6.o vp56.o vp56data.o vp56dsp.o \ |
| 381 |
vp3dsp.o vp6dsp.o huffman.o cabac.o
|
|
| 382 |
OBJS-$(CONFIG_VP8_DECODER) += vp8.o vp8dsp.o cabac.o
|
|
| 381 |
vp3dsp.o vp6dsp.o huffman.o vp56rac.o
|
|
| 382 |
OBJS-$(CONFIG_VP8_DECODER) += vp8.o vp8dsp.o vp56rac.o
|
|
| 383 | 383 |
OBJS-$(CONFIG_VQA_DECODER) += vqavideo.o |
| 384 | 384 |
OBJS-$(CONFIG_WAVPACK_DECODER) += wavpack.o |
| 385 | 385 |
OBJS-$(CONFIG_WMAPRO_DECODER) += wmaprodec.o wma.o |
| libavcodec/vp5.c | ||
|---|---|---|
| 39 | 39 |
VP56RangeCoder *c = &s->c; |
| 40 | 40 |
int rows, cols; |
| 41 | 41 |
|
| 42 |
vp56_init_range_decoder(&s->c, buf, buf_size); |
|
| 42 |
ff_vp56_init_range_decoder(&s->c, buf, buf_size);
|
|
| 43 | 43 |
s->framep[VP56_FRAME_CURRENT]->key_frame = !vp56_rac_get(c); |
| 44 | 44 |
vp56_rac_get(c); |
| 45 | 45 |
ff_vp56_init_dequant(s, vp56_rac_gets(c, 6)); |
| libavcodec/vp56.h | ||
|---|---|---|
| 181 | 181 |
* vp56 specific range coder implementation |
| 182 | 182 |
*/ |
| 183 | 183 |
|
| 184 |
static inline void vp56_init_range_decoder(VP56RangeCoder *c, |
|
| 185 |
const uint8_t *buf, int buf_size) |
|
| 186 |
{
|
|
| 187 |
c->high = 255; |
|
| 188 |
c->bits = -8; |
|
| 189 |
c->buffer = buf; |
|
| 190 |
c->end = buf + buf_size; |
|
| 191 |
c->code_word = bytestream_get_be16(&c->buffer); |
|
| 192 |
} |
|
| 184 |
extern const uint8_t ff_vp56_norm_shift[256]; |
|
| 185 |
void ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size); |
|
| 193 | 186 |
|
| 194 | 187 |
static av_always_inline unsigned int vp56_rac_renorm(VP56RangeCoder *c) |
| 195 | 188 |
{
|
| 196 |
int shift = ff_h264_norm_shift[c->high] - 1;
|
|
| 189 |
int shift = ff_vp56_norm_shift[c->high];
|
|
| 197 | 190 |
int bits = c->bits; |
| 198 | 191 |
unsigned int code_word = c->code_word; |
| 199 | 192 |
|
| libavcodec/vp56rac.c | ||
|---|---|---|
| 1 |
/* |
|
| 2 |
* VP5/6/8 decoder |
|
| 3 |
* Copyright (c) 2010 Jason Garrett-Glaser <darkshikari@gmail.com> |
|
| 4 |
* |
|
| 5 |
* This file is part of FFmpeg. |
|
| 6 |
* |
|
| 7 |
* FFmpeg is free software; you can redistribute it and/or |
|
| 8 |
* modify it under the terms of the GNU Lesser General Public |
|
| 9 |
* License as published by the Free Software Foundation; either |
|
| 10 |
* version 2.1 of the License, or (at your option) any later version. |
|
| 11 |
* |
|
| 12 |
* FFmpeg is distributed in the hope that it will be useful, |
|
| 13 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
| 14 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
| 15 |
* Lesser General Public License for more details. |
|
| 16 |
* |
|
| 17 |
* You should have received a copy of the GNU Lesser General Public |
|
| 18 |
* License along with FFmpeg; if not, write to the Free Software |
|
| 19 |
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
| 20 |
*/ |
|
| 21 |
|
|
| 22 |
#include "libavutil/common.h" |
|
| 23 |
#include "vp56.h" |
|
| 24 |
|
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| 25 |
const uint8_t ff_vp56_norm_shift[256]= {
|
|
| 26 |
8,7,6,6,5,5,5,5,4,4,4,4,4,4,4,4, |
|
| 27 |
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3, |
|
| 28 |
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, |
|
| 29 |
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, |
|
| 30 |
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
|
| 31 |
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
|
| 32 |
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
|
| 33 |
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
|
| 34 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
|
| 35 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
|
| 36 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
|
| 37 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
|
| 38 |
}; |
|
| 39 |
|
|
| 40 |
void ff_vp56_init_range_decoder(VP56RangeCoder *c, const uint8_t *buf, int buf_size) |
|
| 41 |
{
|
|
| 42 |
c->high = 255; |
|
| 43 |
c->bits = -8; |
|
| 44 |
c->buffer = buf; |
|
| 45 |
c->end = buf + buf_size; |
|
| 46 |
c->code_word = bytestream_get_be16(&c->buffer); |
|
| 47 |
} |
|
| libavcodec/vp6.c | ||
|---|---|---|
| 87 | 87 |
res = 2; |
| 88 | 88 |
} |
| 89 | 89 |
|
| 90 |
vp56_init_range_decoder(c, buf+6, buf_size-6); |
|
| 90 |
ff_vp56_init_range_decoder(c, buf+6, buf_size-6);
|
|
| 91 | 91 |
vp56_rac_gets(c, 2); |
| 92 | 92 |
|
| 93 | 93 |
parse_filter_info = s->filter_header; |
| ... | ... | |
| 103 | 103 |
buf += 2; |
| 104 | 104 |
buf_size -= 2; |
| 105 | 105 |
} |
| 106 |
vp56_init_range_decoder(c, buf+1, buf_size-1); |
|
| 106 |
ff_vp56_init_range_decoder(c, buf+1, buf_size-1);
|
|
| 107 | 107 |
|
| 108 | 108 |
*golden_frame = vp56_rac_get(c); |
| 109 | 109 |
if (s->filter_header) {
|
| ... | ... | |
| 143 | 143 |
s->parse_coeff = vp6_parse_coeff_huffman; |
| 144 | 144 |
init_get_bits(&s->gb, buf, buf_size<<3); |
| 145 | 145 |
} else {
|
| 146 |
vp56_init_range_decoder(&s->cc, buf, buf_size); |
|
| 146 |
ff_vp56_init_range_decoder(&s->cc, buf, buf_size);
|
|
| 147 | 147 |
s->ccp = &s->cc; |
| 148 | 148 |
} |
| 149 | 149 |
} else {
|
| libavcodec/vp8.c | ||
|---|---|---|
| 305 | 305 |
if (buf_size - size < 0) |
| 306 | 306 |
return -1; |
| 307 | 307 |
|
| 308 |
vp56_init_range_decoder(&s->coeff_partition[i], buf, size); |
|
| 308 |
ff_vp56_init_range_decoder(&s->coeff_partition[i], buf, size);
|
|
| 309 | 309 |
buf += size; |
| 310 | 310 |
buf_size -= size; |
| 311 | 311 |
} |
| 312 |
vp56_init_range_decoder(&s->coeff_partition[i], buf, buf_size); |
|
| 312 |
ff_vp56_init_range_decoder(&s->coeff_partition[i], buf, buf_size);
|
|
| 313 | 313 |
|
| 314 | 314 |
return 0; |
| 315 | 315 |
} |
| ... | ... | |
| 445 | 445 |
return ret; |
| 446 | 446 |
} |
| 447 | 447 |
|
| 448 |
vp56_init_range_decoder(c, buf, header_size); |
|
| 448 |
ff_vp56_init_range_decoder(c, buf, header_size);
|
|
| 449 | 449 |
buf += header_size; |
| 450 | 450 |
buf_size -= header_size; |
| 451 | 451 |
|
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