Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(674)

Side by Side Diff: patches/ugly/15_enforce_vorbis_oob_divzero.patch

Issue 789004: ffmpeg roll of source to mar 9 version... (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/ffmpeg/
Patch Set: '' Created 10 years, 9 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
OLDNEW
1 Index: patched-ffmpeg-mt/libavcodec/vorbis_dec.c 1 Only in unpatched_ffmpeg-mt: ffmpeg-mt
2 =================================================================== 2 diff -rpu unpatched_ffmpeg-mt/libavcodec/Makefile ffmpeg-mt/libavcodec/Makefile
3 --- patched-ffmpeg-mt/libavcodec/vorbis_dec.c» (revision 40662) 3 --- unpatched_ffmpeg-mt/libavcodec/Makefile» 2010-03-11 17:46:30 -0800
4 +++ patched-ffmpeg-mt/libavcodec/vorbis_dec.c» (working copy) 4 +++ ffmpeg-mt/libavcodec/Makefile» 2010-03-11 19:12:33 -0800
5 @@ -960,6 +960,7 @@ 5 @@ -493,8 +493,7 @@ OBJS-$(CONFIG_MATROSKA_MUXER) +
6 OBJS-$(CONFIG_MOV_DEMUXER) += mpeg4audio.o mpegaudiodata.o
7 OBJS-$(CONFIG_MPEGTS_MUXER) += mpegvideo.o
8 OBJS-$(CONFIG_NUT_MUXER) += mpegaudiodata.o
9 -OBJS-$(CONFIG_OGG_DEMUXER) += flacdec.o flacdata.o flac.o \
10 - dirac.o mpeg12data.o
11 +OBJS-$(CONFIG_OGG_DEMUXER) += dirac.o mpeg12data.o
12 OBJS-$(CONFIG_OGG_MUXER) += xiph.o flacdec.o flacdata.o flac.o
13 OBJS-$(CONFIG_RTP_MUXER) += mpegvideo.o
14
15 @@ -564,6 +563,14 @@ OBJS-$(CONFIG_VP3_PARSER) +
16 OBJS-$(CONFIG_AAC_ADTSTOASC_BSF) += aac_adtstoasc_bsf.o
17 OBJS-$(CONFIG_DUMP_EXTRADATA_BSF) += dump_extradata_bsf.o
18 OBJS-$(CONFIG_H264_MP4TOANNEXB_BSF) += h264_mp4toannexb_bsf.o
19 +OBJS-$(CONFIG_MPEG4VIDEO_ES_BSF) += mpeg4video_es_bsf.o \
20 + mpeg4videoenc.o ituh263enc.o \
21 + mpegvideo_enc.o motion_est.o \
22 + ratecontrol.o mpeg12data.o \
23 + aandcttab.o jfdctfst.o \
24 + jfdctint.o faandct.o \
25 + mpeg4video_parser.o mpegvideo.o \
26 + error_resilience.o
27 OBJS-$(CONFIG_IMX_DUMP_HEADER_BSF) += imx_dump_header_bsf.o
28 OBJS-$(CONFIG_MJPEGA_DUMP_HEADER_BSF) += mjpega_dump_header_bsf.o
29 OBJS-$(CONFIG_MOV2TEXTSUB_BSF) += movsub_bsf.o
30 @@ -573,6 +580,9 @@ OBJS-$(CONFIG_MP3_HEADER_DECOMPRESS_BSF)
31 OBJS-$(CONFIG_NOISE_BSF) += noise_bsf.o
32 OBJS-$(CONFIG_REMOVE_EXTRADATA_BSF) += remove_extradata_bsf.o
33 OBJS-$(CONFIG_TEXT2MOVSUB_BSF) += movsub_bsf.o
34 +OBJS-$(CONFIG_VC1_ASFTORCV_BSF) += vc1_asftorcv_bsf.o
35 +OBJS-$(CONFIG_VC1_ASFTOANNEXG_BSF) += vc1_asftoannexg_bsf.o vc1.o \
36 + vc1data.o
37
38 # thread libraries
39 OBJS-$(HAVE_BEOSTHREADS) += beosthread.o
40 Only in ffmpeg-mt/libavcodec: Makefile~
41 diff -rpu unpatched_ffmpeg-mt/libavcodec/allcodecs.c ffmpeg-mt/libavcodec/allcod ecs.c
42 --- unpatched_ffmpeg-mt/libavcodec/allcodecs.c» 2010-03-11 17:46:29 -0800
43 +++ ffmpeg-mt/libavcodec/allcodecs.c» 2010-03-11 19:12:19 -0800
44 @@ -384,13 +384,15 @@ void avcodec_register_all(void)
45 REGISTER_BSF (AAC_ADTSTOASC, aac_adtstoasc);
46 REGISTER_BSF (DUMP_EXTRADATA, dump_extradata);
47 REGISTER_BSF (H264_MP4TOANNEXB, h264_mp4toannexb);
48 + REGISTER_BSF (MPEG4VIDEO_ES, mpeg4video_es);
49 REGISTER_BSF (IMX_DUMP_HEADER, imx_dump_header);
50 REGISTER_BSF (MJPEGA_DUMP_HEADER, mjpega_dump_header);
51 REGISTER_BSF (MP3_HEADER_COMPRESS, mp3_header_compress);
52 REGISTER_BSF (MP3_HEADER_DECOMPRESS, mp3_header_decompress);
53 + REGISTER_BSF (VC1_ASFTORCV, vc1_asftorcv);
54 + REGISTER_BSF (VC1_ASFTOANNEXG, vc1_asftoannexg);
55 REGISTER_BSF (MOV2TEXTSUB, mov2textsub);
56 REGISTER_BSF (NOISE, noise);
57 REGISTER_BSF (REMOVE_EXTRADATA, remove_extradata);
58 REGISTER_BSF (TEXT2MOVSUB, text2movsub);
59 }
60 -
61 Only in ffmpeg-mt/libavcodec: allcodecs.c~
62 diff -rpu unpatched_ffmpeg-mt/libavcodec/get_bits.h ffmpeg-mt/libavcodec/get_bit s.h
63 --- unpatched_ffmpeg-mt/libavcodec/get_bits.h» 2010-03-11 17:46:30 -0800
64 +++ ffmpeg-mt/libavcodec/get_bits.h» 2010-03-11 19:13:14 -0800
65 @@ -53,13 +53,21 @@
66 /* buffer, buffer_end and size_in_bits must be present and used by every reader */
67 typedef struct GetBitContext {
68 const uint8_t *buffer, *buffer_end;
69 + /* Ugly, but clients of this bit reader do not seem to check for enough
70 + * data before calling. So we'll return 0's on overrun rather than crashing
71 + * with random read faults.
72 + */
73 + int buffer_exhausted;
74 + int buffer_enforcing;
75 #ifdef ALT_BITSTREAM_READER
76 int index;
77 #elif defined LIBMPEG2_BITSTREAM_READER
78 +#error TODO - secure this against read overrun
79 uint8_t *buffer_ptr;
80 uint32_t cache;
81 int bit_count;
82 #elif defined A32_BITSTREAM_READER
83 +#warning TODO - secure this against read overrun
84 uint32_t *buffer_ptr;
85 uint32_t cache0;
86 uint32_t cache1;
87 @@ -139,13 +147,19 @@ for examples see get_bits, show_bits, sk
88
89 # ifdef ALT_BITSTREAM_READER_LE
90 # define UPDATE_CACHE(name, gb)\
91 + if (!(gb)->buffer_exhausted)\
92 name##_cache= AV_RL32( ((const uint8_t *)(gb)->buffer)+(name##_index>>3 ) ) >> (name##_index&0x07);\
93 + else\
94 + name##_cache = 0;\
95
96 # define SKIP_CACHE(name, gb, num)\
97 name##_cache >>= (num);
98 # else
99 # define UPDATE_CACHE(name, gb)\
100 + if (!(gb)->buffer_exhausted)\
101 name##_cache= AV_RB32( ((const uint8_t *)(gb)->buffer)+(name##_index>>3 ) ) << (name##_index&0x07);\
102 + else\
103 + name##_cache = 0;\
104
105 # define SKIP_CACHE(name, gb, num)\
106 name##_cache <<= (num);
107 @@ -154,6 +168,8 @@ for examples see get_bits, show_bits, sk
108 // FIXME name?
109 # define SKIP_COUNTER(name, gb, num)\
110 name##_index += (num);\
111 + if ((gb)->buffer_enforcing && name##_index >= (gb)->size_in_bits)\
112 + (gb)->buffer_exhausted = 1;\
113
114 # define SKIP_BITS(name, gb, num)\
115 {\
116 @@ -187,6 +203,12 @@ static inline int get_bits_count(const G
117
118 static inline void skip_bits_long(GetBitContext *s, int n){
119 s->index += n;
120 + if (s->buffer_enforcing) {
121 + if (n < 0 && s->index < s->size_in_bits)
122 + s->buffer_exhausted = 0;
123 + else if (s->index >= s->size_in_bits)
124 + s->buffer_exhausted = 1;
125 + }
126 }
127
128 #elif defined LIBMPEG2_BITSTREAM_READER
129 @@ -391,7 +413,10 @@ static inline void skip_bits(GetBitConte
130 }
131
132 static inline unsigned int get_bits1(GetBitContext *s){
133 + if (s->buffer_exhausted)
134 + return 0;
135 #ifdef ALT_BITSTREAM_READER
136 + {
137 unsigned int index= s->index;
138 uint8_t result= s->buffer[ index>>3 ];
139 #ifdef ALT_BITSTREAM_READER_LE
140 @@ -402,9 +427,12 @@ static inline unsigned int get_bits1(Get
141 result>>= 8 - 1;
142 #endif
143 index++;
144 + if (s->buffer_enforcing && index >= s->size_in_bits)
145 + s->buffer_exhausted = 1;
146 s->index= index;
147
148 return result;
149 + }
150 #else
151 return get_bits(s, 1);
152 #endif
153 @@ -482,6 +510,8 @@ static inline void init_get_bits(GetBitC
154 s->buffer= buffer;
155 s->size_in_bits= bit_size;
156 s->buffer_end= buffer + buffer_size;
157 + s->buffer_exhausted = 0;
158 + s->buffer_enforcing = 0;
159 #ifdef ALT_BITSTREAM_READER
160 s->index=0;
161 #elif defined LIBMPEG2_BITSTREAM_READER
162 Only in ffmpeg-mt/libavcodec: get_bits.h~
163 diff -rpu unpatched_ffmpeg-mt/libavcodec/h264.h ffmpeg-mt/libavcodec/h264.h
164 --- unpatched_ffmpeg-mt/libavcodec/h264.h» 2010-03-11 17:46:30 -0800
165 +++ ffmpeg-mt/libavcodec/h264.h»2010-03-11 19:12:59 -0800
166 @@ -599,9 +599,20 @@ typedef struct H264Context{
167
168 extern const uint8_t ff_h264_chroma_qp[52];
169
170 +#if CONFIG_SVQ3_DECODER
171 void ff_svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
172
173 void ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int d c);
174 +#else
175 +
176 +#define SVQ3_DISABLED_FUNC { av_log(NULL, AV_LOG_FATAL, "Calling svq3 when disa bled.\n"); }
177 +
178 +static void inline ff_svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp) SVQ3_ DISABLED_FUNC;
179 +
180 +static void inline ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc) SVQ3_DISABLED_FUNC;
181 +
182 +#endif
183 +
184
185 /**
186 * Decode SEI
187 Only in ffmpeg-mt/libavcodec: h264.h~
188 diff -rpu unpatched_ffmpeg-mt/libavcodec/mpeg4video.h ffmpeg-mt/libavcodec/mpeg4 video.h
189 --- unpatched_ffmpeg-mt/libavcodec/mpeg4video.h»2010-03-11 17:46:30 -0800
190 +++ ffmpeg-mt/libavcodec/mpeg4video.h» 2010-03-11 19:12:02 -0800
191 @@ -91,6 +91,9 @@ void mpeg4_encode_mb(MpegEncContext *s,
192 void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
193 int dir);
194 void ff_set_mpeg4_time(MpegEncContext * s);
195 +void mpeg4_encode_gop_header(MpegEncContext * s);
196 +void mpeg4_encode_visual_object_header(MpegEncContext * s);
197 +void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_number) ;
198 void mpeg4_encode_picture_header(MpegEncContext *s, int picture_number);
199
200 int ff_mpeg4_decode_picture_header(MpegEncContext * s, GetBitContext *gb);
201 Only in ffmpeg-mt/libavcodec: mpeg4video.h~
202 Only in ffmpeg-mt/libavcodec: mpeg4video_es_bsf.c
203 diff -rpu unpatched_ffmpeg-mt/libavcodec/mpeg4videoenc.c ffmpeg-mt/libavcodec/mp eg4videoenc.c
204 --- unpatched_ffmpeg-mt/libavcodec/mpeg4videoenc.c» 2010-03-11 17:46:30 -080 0
205 +++ ffmpeg-mt/libavcodec/mpeg4videoenc.c» 2010-03-11 19:12:02 -0800
206 @@ -872,7 +872,7 @@ void ff_set_mpeg4_time(MpegEncContext *
6 } 207 }
7 208 }
209
210 -static void mpeg4_encode_gop_header(MpegEncContext * s){
211 +void mpeg4_encode_gop_header(MpegEncContext * s){
212 int hours, minutes, seconds;
213 int64_t time;
214
215 @@ -902,7 +902,7 @@ static void mpeg4_encode_gop_header(Mpeg
216 ff_mpeg4_stuffing(&s->pb);
217 }
218
219 -static void mpeg4_encode_visual_object_header(MpegEncContext * s){
220 +void mpeg4_encode_visual_object_header(MpegEncContext * s){
221 int profile_and_level_indication;
222 int vo_ver_id;
223
224 @@ -947,7 +947,7 @@ static void mpeg4_encode_visual_object_h
225 ff_mpeg4_stuffing(&s->pb);
226 }
227
228 -static void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_ number)
229 +void mpeg4_encode_vol_header(MpegEncContext * s, int vo_number, int vol_number)
230 {
231 int vo_ver_id;
232
233 Only in ffmpeg-mt/libavcodec: vc1_asftoannexg_bsf.c
234 Only in ffmpeg-mt/libavcodec: vc1_asftorcv_bsf.c
235 diff -rpu unpatched_ffmpeg-mt/libavcodec/vorbis_dec.c ffmpeg-mt/libavcodec/vorbi s_dec.c
236 --- unpatched_ffmpeg-mt/libavcodec/vorbis_dec.c»2010-03-11 17:46:30 -0800
237 +++ ffmpeg-mt/libavcodec/vorbis_dec.c» 2010-03-11 19:13:34 -0800
238 @@ -961,6 +961,7 @@ static av_cold int vorbis_decode_init(AV
239 }
240
8 init_get_bits(gb, header_start[0], header_len[0]*8); 241 init_get_bits(gb, header_start[0], header_len[0]*8);
9 + gb->buffer_enforcing=1; 242 + gb->buffer_enforcing=1;
10 hdr_type = get_bits(gb, 8); 243 hdr_type = get_bits(gb, 8);
11 if (hdr_type != 1) { 244 if (hdr_type != 1) {
12 av_log(avccontext, AV_LOG_ERROR, "First header is not the id header.\n" ); 245 av_log(avccontext, AV_LOG_ERROR, "First header is not the id header.\n" );
13 @@ -972,6 +973,7 @@ 246 @@ -973,6 +974,7 @@ static av_cold int vorbis_decode_init(AV
14 } 247 }
15 248
16 init_get_bits(gb, header_start[2], header_len[2]*8); 249 init_get_bits(gb, header_start[2], header_len[2]*8);
17 + gb->buffer_enforcing=1; 250 + gb->buffer_enforcing=1;
18 hdr_type = get_bits(gb, 8); 251 hdr_type = get_bits(gb, 8);
19 if (hdr_type != 5) { 252 if (hdr_type != 5) {
20 av_log(avccontext, AV_LOG_ERROR, "Third header is not the setup header. \n"); 253 av_log(avccontext, AV_LOG_ERROR, "Third header is not the setup header. \n");
21 @@ -1193,7 +1195,7 @@ 254 @@ -1194,7 +1196,7 @@ static uint_fast8_t vorbis_floor1_decode
22 adx = vf->list[high_neigh_offs].x - vf->list[low_neigh_offs].x; 255 adx = vf->list[high_neigh_offs].x - vf->list[low_neigh_offs].x;
23 ady = FFABS(dy); 256 ady = FFABS(dy);
24 err = ady * (vf->list[i].x - vf->list[low_neigh_offs].x); 257 err = ady * (vf->list[i].x - vf->list[low_neigh_offs].x);
25 - off = (int16_t)err / (int16_t)adx; 258 - off = (int16_t)err / (int16_t)adx;
26 + off = (int16_t)err / (int16_t)(adx?adx:1); 259 + off = (int16_t)err / (int16_t)(adx?adx:1);
27 if (dy < 0) { 260 if (dy < 0) {
28 predicted = floor1_Y_final[low_neigh_offs] - off; 261 predicted = floor1_Y_final[low_neigh_offs] - off;
29 } else { 262 } else {
30 @@ -1280,7 +1282,7 @@ 263 @@ -1281,7 +1283,7 @@ static av_always_inline int vorbis_resid
31 uint_fast16_t j_times_ptns_to_read; 264 uint_fast16_t j_times_ptns_to_read;
32 265
33 voffset = vr->begin; 266 voffset = vr->begin;
34 - for (partition_count = 0; partition_count < ptns_to_read;) { // SPEC error 267 - for (partition_count = 0; partition_count < ptns_to_read;) { // SPEC error
35 + for(partition_count=0;partition_count<ptns_to_read && !(gb->buffer_exha usted && gb->index > gb->size_in_bits);) { // SPEC error 268 + for(partition_count=0;partition_count<ptns_to_read && !(gb->buffer_exha usted && gb->index > gb->size_in_bits);) { // SPEC error
36 if (!pass) { 269 if (!pass) {
37 uint_fast32_t inverse_class = ff_inverse[vr->classifications]; 270 uint_fast32_t inverse_class = ff_inverse[vr->classifications];
38 for (j_times_ptns_to_read = 0, j = 0; j < ch_used; ++j) { 271 for (j_times_ptns_to_read = 0, j = 0; j < ch_used; ++j) {
39 @@ -1600,6 +1602,7 @@ 272 @@ -1601,6 +1603,7 @@ static int vorbis_decode_frame(AVCodecCo
40 AV_DEBUG("packet length %d \n", buf_size); 273 AV_DEBUG("packet length %d \n", buf_size);
41 274
42 init_get_bits(gb, buf, buf_size*8); 275 init_get_bits(gb, buf, buf_size*8);
43 + gb->buffer_enforcing=1; 276 + gb->buffer_enforcing=1;
44 277
45 len = vorbis_parse_audio_packet(vc); 278 len = vorbis_parse_audio_packet(vc);
46 279
280 Only in ffmpeg-mt/libavcodec: vorbis_dec.c~
281 diff -rpu unpatched_ffmpeg-mt/libavcodec/vp3.c ffmpeg-mt/libavcodec/vp3.c
282 --- unpatched_ffmpeg-mt/libavcodec/vp3.c» 2010-03-11 17:46:30 -0800
283 +++ ffmpeg-mt/libavcodec/vp3.c» 2010-03-11 19:13:21 -0800
284 @@ -922,6 +922,11 @@ static int unpack_vlcs(Vp3DecodeContext
285 int num_coeffs = s->num_coded_frags[plane][coeff_index];
286 int16_t *dct_tokens = s->dct_tokens[plane][coeff_index];
287
288 +#ifdef ALT_BITSTREAM_READER
289 + if (gb->buffer_exhausted && gb->index > gb->size_in_bits)
290 + return 0;
291 +#endif
292 +
293 /* local references to structure members to avoid repeated deferences */
294 int *coded_fragment_list = s->coded_fragment_list[plane];
295 Vp3Fragment *all_fragments = s->all_fragments;
296 @@ -1099,6 +1104,11 @@ static int unpack_dct_coeffs(Vp3DecodeCo
297 2, residual_eob_run);
298 }
299
300 +#ifdef ALT_BITSTREAM_READER
301 + if (gb->buffer_exhausted && gb->index > gb->size_in_bits)
302 + return 1;
303 +#endif
304 +
305 return 0;
306 }
307
308 @@ -1882,6 +1892,7 @@ static int vp3_decode_frame(AVCodecConte
309 int i;
310
311 init_get_bits(&gb, buf, buf_size * 8);
312 + gb.buffer_enforcing = 1;
313
314 if (s->theora && get_bits1(&gb))
315 {
316 @@ -2305,6 +2316,7 @@ static av_cold int theora_decode_init(AV
317
318 for(i=0;i<3;i++) {
319 init_get_bits(&gb, header_start[i], header_len[i] * 8);
320 + gb.buffer_enforcing = 1;
321
322 ptype = get_bits(&gb, 8);
323
324 Only in ffmpeg-mt/libavcodec: vp3.c~
325 diff -rpu unpatched_ffmpeg-mt/libavformat/Makefile ffmpeg-mt/libavformat/Makefil e
326 --- unpatched_ffmpeg-mt/libavformat/Makefile» 2010-03-11 17:46:31 -0800
327 +++ ffmpeg-mt/libavformat/Makefile» 2010-03-11 19:12:33 -0800
328 @@ -141,13 +141,13 @@ OBJS-$(CONFIG_NUT_DEMUXER)
329 OBJS-$(CONFIG_NUT_MUXER) += nutenc.o nut.o riff.o
330 OBJS-$(CONFIG_NUV_DEMUXER) += nuv.o riff.o
331 OBJS-$(CONFIG_OGG_DEMUXER) += oggdec.o \
332 - oggparsedirac.o \
333 - oggparseflac.o \
334 oggparseogm.o \
335 - oggparsespeex.o \
336 oggparsetheora.o \
337 oggparsevorbis.o \
338 riff.o
339 +OBJS-$(CONFIG_DIRAC_DEMUXER) += oggparsedirac.o
340 +OBJS-$(CONFIG_FLAC_DECODER) += oggparseflac.o
341 +OBJS-$(CONFIG_LIBSPEEX) += oggparsespeex.o
342 OBJS-$(CONFIG_OGG_MUXER) += oggenc.o
343 OBJS-$(CONFIG_OMA_DEMUXER) += oma.o raw.o
344 OBJS-$(CONFIG_PCM_ALAW_DEMUXER) += raw.o
345 diff -rpu unpatched_ffmpeg-mt/libavformat/mov.c ffmpeg-mt/libavformat/mov.c
346 --- unpatched_ffmpeg-mt/libavformat/mov.c» 2010-03-11 17:46:31 -0800
347 +++ ffmpeg-mt/libavformat/mov.c»2010-03-11 19:08:40 -0800
348 @@ -312,6 +312,8 @@ static int mov_read_dref(MOVContext *c,
349 MOVDref *dref = &sc->drefs[i];
350 uint32_t size = get_be32(pb);
351 int64_t next = url_ftell(pb) + size - 4;
352 + if (size < 8)
353 + return -1;
354
355 dref->type = get_le32(pb);
356 get_be32(pb); // version + flags
357 Only in ffmpeg-mt/libavformat: mov.c~
358 diff -rpu unpatched_ffmpeg-mt/libavformat/oggdec.c ffmpeg-mt/libavformat/oggdec. c
359 --- unpatched_ffmpeg-mt/libavformat/oggdec.c» 2010-03-11 17:46:31 -0800
360 +++ ffmpeg-mt/libavformat/oggdec.c» 2010-03-11 19:12:46 -0800
361 @@ -38,13 +38,23 @@
362 #define DECODER_BUFFER_SIZE MAX_PAGE_SIZE
363
364 static const struct ogg_codec * const ogg_codecs[] = {
365 +#if CONFIG_DIRAC_DEMUXER
366 &ff_dirac_codec,
367 +#endif
368 +#if CONFIG_LIBSPEEX
369 &ff_speex_codec,
370 +#endif
371 &ff_vorbis_codec,
372 &ff_theora_codec,
373 +#if CONFIG_FLAC_DECODER
374 &ff_flac_codec,
375 +#endif
376 +#if CONFIG_DIRAC_DEMUXER
377 &ff_old_dirac_codec,
378 +#endif
379 +#if CONFIG_FLAC_DECODER
380 &ff_old_flac_codec,
381 +#endif
382 &ff_ogm_video_codec,
383 &ff_ogm_audio_codec,
384 &ff_ogm_text_codec,
385 @@ -200,7 +210,7 @@ ogg_new_buf(struct ogg *ogg, int idx)
386 }
387
388 static int
389 -ogg_read_page (AVFormatContext * s, int *str)
390 +ogg_read_page (AVFormatContext * s, int *str, int64_t *offset)
391 {
392 ByteIOContext *bc = s->pb;
393 struct ogg *ogg = s->priv_data;
394 @@ -214,6 +224,7 @@ ogg_read_page (AVFormatContext * s, int
395 int size, idx;
396 uint8_t sync[4];
397 int sp = 0;
398 + int64_t poffset = url_ftell(bc);
399
400 if (get_buffer (bc, sync, 4) < 4)
401 return -1;
402 @@ -298,18 +309,22 @@ ogg_read_page (AVFormatContext * s, int
403
404 if (str)
405 *str = idx;
406 + if (offset)
407 + *offset = poffset;
408
409 return 0;
410 }
411
412 static int
413 -ogg_packet (AVFormatContext * s, int *str, int *dstart, int *dsize)
414 +ogg_packet (AVFormatContext * s, int *str, int *dstart, int *dsize, int64_t* of fset)
415 {
416 struct ogg *ogg = s->priv_data;
417 int idx, i;
418 struct ogg_stream *os;
419 int complete = 0;
420 int segp = 0, psize = 0;
421 + int64_t poffset;
422 + int pnum = 0;
423
424 #if 0
425 av_log (s, AV_LOG_DEBUG, "ogg_packet: curidx=%i\n", ogg->curidx);
426 @@ -319,10 +334,13 @@ ogg_packet (AVFormatContext * s, int *st
427 idx = ogg->curidx;
428
429 while (idx < 0){
430 - if (ogg_read_page (s, &idx) < 0)
431 + if (ogg_read_page (s, &idx, &poffset) < 0)
432 return -1;
433 }
434
435 + if (pnum++ == 0 && offset)
436 + *offset = poffset;
437 +
438 os = ogg->streams + idx;
439
440 #if 0
441 @@ -418,12 +436,15 @@ static int
442 ogg_get_headers (AVFormatContext * s)
443 {
444 struct ogg *ogg = s->priv_data;
445 + int64_t pos = 0;
446
447 do{
448 - if (ogg_packet (s, NULL, NULL, NULL) < 0)
449 + if (ogg_packet (s, NULL, NULL, NULL, &pos) < 0)
450 return -1;
451 }while (!ogg->headers);
452
453 + s->data_offset = pos;
454 +
455 #if 0
456 av_log (s, AV_LOG_DEBUG, "found headers\n");
457 #endif
458 @@ -472,7 +493,7 @@ ogg_get_length (AVFormatContext * s)
459 ogg_save (s);
460 url_fseek (s->pb, end, SEEK_SET);
461
462 - while (!ogg_read_page (s, &i)){
463 + while (!ogg_read_page (s, &i, NULL)){
464 if (ogg->streams[i].granule != -1 && ogg->streams[i].granule != 0 &&
465 ogg->streams[i].codec)
466 idx = i;
467 @@ -523,7 +544,7 @@ ogg_read_packet (AVFormatContext * s, AV
468
469 //Get an ogg packet
470 do{
471 - if (ogg_packet (s, &idx, &pstart, &psize) < 0)
472 + if (ogg_packet (s, &idx, &pstart, &psize, NULL) < 0)
473 return AVERROR(EIO);
474 }while (idx < 0 || !s->streams[idx]);
475
476 @@ -585,14 +606,17 @@ ogg_read_timestamp (AVFormatContext * s,
477 ByteIOContext *bc = s->pb;
478 int64_t pts = AV_NOPTS_VALUE;
479 int i;
480 + int64_t fpoffset = AV_NOPTS_VALUE;
481 + int64_t poffset;
482 url_fseek(bc, *pos_arg, SEEK_SET);
483 - while (url_ftell(bc) < pos_limit && !ogg_read_page (s, &i)) {
484 + while (url_ftell(bc) < pos_limit && !ogg_read_page (s, &i, &poffset)) {
485 + if (fpoffset == AV_NOPTS_VALUE && i == stream_index)
486 + fpoffset = poffset;
487 if (ogg->streams[i].granule != -1 && ogg->streams[i].granule != 0 &&
488 ogg->streams[i].codec && i == stream_index) {
489 pts = ogg_gptopts(s, i, ogg->streams[i].granule, NULL);
490 - // FIXME: this is the position of the packet after the one with abo ve
491 - // pts.
492 - *pos_arg = url_ftell(bc);
493 + *pos_arg = fpoffset;
494 + url_fseek(bc, fpoffset, SEEK_SET);
495 break;
496 }
497 }
498 Only in ffmpeg-mt/libavformat: oggdec.c~
OLDNEW

Powered by Google App Engine
This is Rietveld 408576698