diff options
Diffstat (limited to 'libmpdemux')
-rw-r--r-- | libmpdemux/demux_ogg.c | 2797 |
1 files changed, 1437 insertions, 1360 deletions
diff --git a/libmpdemux/demux_ogg.c b/libmpdemux/demux_ogg.c index acb783d71f..e872ad5156 100644 --- a/libmpdemux/demux_ogg.c +++ b/libmpdemux/demux_ogg.c @@ -60,112 +60,108 @@ int _ilog (unsigned int); /* defined in many places in theora/lib/ */ */ #ifdef CONFIG_OGGTHEORA typedef struct theora_struct_st { - theora_state st; + theora_state st; theora_comment cc; - theora_info inf; + theora_info inf; } theora_struct_t; #endif //// OggDS headers // Header for the new header format -typedef struct stream_header_video -{ - ogg_int32_t width; - ogg_int32_t height; +typedef struct stream_header_video { + ogg_int32_t width; + ogg_int32_t height; } stream_header_video; -typedef struct stream_header_audio -{ - ogg_int16_t channels; - ogg_int16_t blockalign; - ogg_int32_t avgbytespersec; +typedef struct stream_header_audio { + ogg_int16_t channels; + ogg_int16_t blockalign; + ogg_int32_t avgbytespersec; } stream_header_audio; -typedef struct __attribute__((__packed__)) stream_header -{ - char streamtype[8]; - char subtype[4]; +typedef struct __attribute__((__packed__)) stream_header { + char streamtype[8]; + char subtype[4]; - ogg_int32_t size; // size of the structure + ogg_int32_t size; // size of the structure - ogg_int64_t time_unit; // in reference time - ogg_int64_t samples_per_unit; - ogg_int32_t default_len; // in media time + ogg_int64_t time_unit; // in reference time + ogg_int64_t samples_per_unit; + ogg_int32_t default_len; // in media time - ogg_int32_t buffersize; - ogg_int16_t bits_per_sample; + ogg_int32_t buffersize; + ogg_int16_t bits_per_sample; - ogg_int16_t padding; + ogg_int16_t padding; - union - { - // Video specific - stream_header_video video; - // Audio specific - stream_header_audio audio; - } sh; + union { + // Video specific + stream_header_video video; + // Audio specific + stream_header_audio audio; + } sh; } stream_header; /// Our private datas typedef struct ogg_syncpoint { - int64_t granulepos; - off_t page_pos; + int64_t granulepos; + off_t page_pos; } ogg_syncpoint_t; /// A logical stream typedef struct ogg_stream { - /// Timestamping stuff - float samplerate; /// granulpos 2 time - int64_t lastpos; - int32_t lastsize; - int keyframe_frequency_force; - - // Logical stream state - ogg_stream_state stream; - int hdr_packets; - int vorbis; - int speex; - int theora; - int flac; - int text; - int id; - - vorbis_info vi; - int vi_initialized; - - void *ogg_d; + /// Timestamping stuff + float samplerate; /// granulpos 2 time + int64_t lastpos; + int32_t lastsize; + int keyframe_frequency_force; + + // Logical stream state + ogg_stream_state stream; + int hdr_packets; + int vorbis; + int speex; + int theora; + int flac; + int text; + int id; + + vorbis_info vi; + int vi_initialized; + + void *ogg_d; } ogg_stream_t; typedef struct ogg_demuxer { - /// Physical stream state - ogg_sync_state sync; - /// Current page - ogg_page page; - /// Logical streams - ogg_stream_t *subs; - int num_sub; - ogg_syncpoint_t* syncpoints; - int num_syncpoint; - off_t pos, last_size; - int64_t initial_granulepos; - int64_t final_granulepos; - int64_t duration; - - /* Used for subtitle switching. */ - int n_text; - int *text_ids; - char **text_langs; + /// Physical stream state + ogg_sync_state sync; + /// Current page + ogg_page page; + /// Logical streams + ogg_stream_t *subs; + int num_sub; + ogg_syncpoint_t *syncpoints; + int num_syncpoint; + off_t pos, last_size; + int64_t initial_granulepos; + int64_t final_granulepos; + int64_t duration; + + /* Used for subtitle switching. */ + int n_text; + int *text_ids; + char **text_langs; } ogg_demuxer_t; #define NUM_VORBIS_HDR_PACKETS 3 /// Some defines from OggDS -#define PACKET_TYPE_HEADER 0x01 -#define PACKET_TYPE_BITS 0x07 -#define PACKET_LEN_BITS01 0xc0 -#define PACKET_LEN_BITS2 0x02 -#define PACKET_IS_SYNCPOINT 0x08 +#define PACKET_TYPE_HEADER 0x01 +#define PACKET_TYPE_BITS 0x07 +#define PACKET_LEN_BITS01 0xc0 +#define PACKET_LEN_BITS2 0x02 +#define PACKET_IS_SYNCPOINT 0x08 extern char *dvdsub_lang, *audio_lang; @@ -181,192 +177,192 @@ static subtitle ogg_sub; static void demux_ogg_add_sub(ogg_stream_t *os, ogg_packet *pack) { - int lcv; - char *packet = pack->packet; - - if (pack->bytes < 4) - return; - mp_msg(MSGT_DEMUX,MSGL_DBG2,"\ndemux_ogg_add_sub %02X %02X %02X '%s'\n", - (unsigned char)packet[0], - (unsigned char)packet[1], - (unsigned char)packet[2], - &packet[3]); - - if (((unsigned char)packet[0]) == 0x88) { // some subtitle text - // Find data start - double endpts = MP_NOPTS_VALUE; - int32_t duration = 0; - int16_t hdrlen = (*packet & PACKET_LEN_BITS01)>>6, i; - hdrlen |= (*packet & PACKET_LEN_BITS2) <<1; - lcv = 1 + hdrlen; - if (pack->bytes < lcv) - return; - for (i = hdrlen; i > 0; i--) { - duration <<= 8; - duration |= (unsigned char)packet[i]; - } - if (hdrlen > 0 && duration > 0) { - float pts; - if(pack->granulepos == -1) - pack->granulepos = os->lastpos + os->lastsize; - pts = (float)pack->granulepos/(float)os->samplerate; - endpts = 1.0 + pts + (float)duration/1000.0; + int lcv; + char *packet = pack->packet; + + if (pack->bytes < 4) + return; + mp_msg(MSGT_DEMUX, MSGL_DBG2, "\ndemux_ogg_add_sub %02X %02X %02X '%s'\n", + (unsigned char)packet[0], + (unsigned char)packet[1], + (unsigned char)packet[2], + &packet[3]); + + if (((unsigned char)packet[0]) == 0x88) { // some subtitle text + // Find data start + double endpts = MP_NOPTS_VALUE; + int32_t duration = 0; + int16_t hdrlen = (*packet & PACKET_LEN_BITS01) >> 6, i; + + hdrlen |= (*packet & PACKET_LEN_BITS2) << 1; + lcv = 1 + hdrlen; + if (pack->bytes < lcv) + return; + for (i = hdrlen; i > 0; i--) { + duration <<= 8; + duration |= (unsigned char)packet[i]; + } + if (hdrlen > 0 && duration > 0) { + float pts; + + if (pack->granulepos == -1) + pack->granulepos = os->lastpos + os->lastsize; + pts = (float)pack->granulepos / (float)os->samplerate; + endpts = 1.0 + pts + (float)duration / 1000.0; + } + sub_clear_text(&ogg_sub, MP_NOPTS_VALUE); + sub_add_text(&ogg_sub, &packet[lcv], pack->bytes - lcv, endpts); } - sub_clear_text(&ogg_sub, MP_NOPTS_VALUE); - sub_add_text(&ogg_sub, &packet[lcv], pack->bytes - lcv, endpts); - } - mp_msg(MSGT_DEMUX,MSGL_DBG2,"Ogg sub lines: %d first: '%s'\n", - ogg_sub.lines, ogg_sub.text[0]); + mp_msg(MSGT_DEMUX, MSGL_DBG2, "Ogg sub lines: %d first: '%s'\n", + ogg_sub.lines, ogg_sub.text[0]); #ifdef CONFIG_ICONV - subcp_recode(&ogg_sub); + subcp_recode(&ogg_sub); #endif - vo_sub = &ogg_sub; - vo_osd_changed(OSDTYPE_SUBTITLE); + vo_sub = &ogg_sub; + vo_osd_changed(OSDTYPE_SUBTITLE); } // get the logical stream of the current page // fill os if non NULL and return the stream id -static int demux_ogg_get_page_stream(ogg_demuxer_t* ogg_d,ogg_stream_state** os) { - int id,s_no; - ogg_page* page = &ogg_d->page; - - s_no = ogg_page_serialno(page); - - for(id= 0; id < ogg_d->num_sub ; id++) { - if(s_no == ogg_d->subs[id].stream.serialno) - break; - } - - if(id == ogg_d->num_sub) { - // If we have only one vorbis stream allow the stream id to change - // it's normal on radio stream (each song have an different id). - // But we (or the codec?) should check that the samplerate, etc - // doesn't change (for radio stream it's ok) - if(ogg_d->num_sub == 1 && ogg_d->subs[0].vorbis) { - ogg_stream_reset(&ogg_d->subs[0].stream); - ogg_stream_init(&ogg_d->subs[0].stream,s_no); - id = 0; - } else - return -1; - } +static int demux_ogg_get_page_stream(ogg_demuxer_t *ogg_d, + ogg_stream_state **os) +{ + int id, s_no; + ogg_page *page = &ogg_d->page; - if(os) - *os = &ogg_d->subs[id].stream; + s_no = ogg_page_serialno(page); - return id; + for (id = 0; id < ogg_d->num_sub; id++) + if (s_no == ogg_d->subs[id].stream.serialno) + break; -} + if (id == ogg_d->num_sub) { + // If we have only one vorbis stream allow the stream id to change + // it's normal on radio stream (each song have an different id). + // But we (or the codec?) should check that the samplerate, etc + // doesn't change (for radio stream it's ok) + if (ogg_d->num_sub == 1 && ogg_d->subs[0].vorbis) { + ogg_stream_reset(&ogg_d->subs[0].stream); + ogg_stream_init(&ogg_d->subs[0].stream, s_no); + id = 0; + } else + return -1; + } -static unsigned char* demux_ogg_read_packet(ogg_stream_t* os,ogg_packet* pack,float* pts,int* flags, int samplesize) { - unsigned char* data = pack->packet; - int size = pack->bytes; + if (os) + *os = &ogg_d->subs[id].stream; - *pts = MP_NOPTS_VALUE; - *flags = 0; + return id; +} - if(os->vorbis) { - if(*pack->packet & PACKET_TYPE_HEADER) - os->hdr_packets++; - else - { - vorbis_info *vi; - int32_t blocksize = 0; - - // When we dump the audio, there is no vi, but we don't care of timestamp in this case - vi = os->vi_initialized ? &os->vi : NULL; - if (vi) - blocksize = vorbis_packet_blocksize(vi,pack) / samplesize; - // Calculate the timestamp if the packet don't have any - if(pack->granulepos == -1) { - pack->granulepos = os->lastpos; - if(os->lastsize > 0) - pack->granulepos += os->lastsize; - } else - *flags = 1; - if (vi) - *pts = pack->granulepos / (float)vi->rate; - os->lastsize = blocksize; - os->lastpos = pack->granulepos; - } - } else if (os->speex) { - // whole packet (default) +static unsigned char *demux_ogg_read_packet(ogg_stream_t *os, ogg_packet *pack, + float *pts, int *flags, + int samplesize) +{ + unsigned char *data = pack->packet; + int size = pack->bytes; + + *pts = MP_NOPTS_VALUE; + *flags = 0; + + if (os->vorbis) { + if (*pack->packet & PACKET_TYPE_HEADER) { + os->hdr_packets++; + } else { + vorbis_info *vi; + int32_t blocksize = 0; + + // When we dump the audio, there is no vi, but we don't care of timestamp in this case + vi = os->vi_initialized ? &os->vi : NULL; + if (vi) + blocksize = vorbis_packet_blocksize(vi, pack) / samplesize; + // Calculate the timestamp if the packet don't have any + if (pack->granulepos == -1) { + pack->granulepos = os->lastpos; + if (os->lastsize > 0) + pack->granulepos += os->lastsize; + } else + *flags = 1; + if (vi) + *pts = pack->granulepos / (float)vi->rate; + os->lastsize = blocksize; + os->lastpos = pack->granulepos; + } + } else if (os->speex) { + // whole packet (default) # ifdef CONFIG_OGGTHEORA - } else if (os->theora) { - /* we pass complete packets to theora, mustn't strip the header! */ - os->lastsize = 1; - - /* header packets begin on 1-bit: thus check (*data&0x80). We don't - have theora_state st, until all header packets were passed to the - decoder. */ - if (!size || !(*data&0x80)) - { - int keyframe_granule_shift=_ilog(os->keyframe_frequency_force-1); - int64_t iframemask = (1 << keyframe_granule_shift) - 1; - - if (pack->granulepos >= 0) - { - os->lastpos = pack->granulepos >> keyframe_granule_shift; - os->lastpos += pack->granulepos & iframemask; - *flags = (pack->granulepos & iframemask) == 0; - } - else - { - os->lastpos++; - } - pack->granulepos = os->lastpos; - *pts = (double)os->lastpos / (double)os->samplerate; - } + } else if (os->theora) { + /* we pass complete packets to theora, mustn't strip the header! */ + os->lastsize = 1; + + /* header packets begin on 1-bit: thus check (*data&0x80). We don't + have theora_state st, until all header packets were passed to the + decoder. */ + if (!size || !(*data&0x80)) { + int keyframe_granule_shift = _ilog(os->keyframe_frequency_force - 1); + int64_t iframemask = (1 << keyframe_granule_shift) - 1; + + if (pack->granulepos >= 0) { + os->lastpos = pack->granulepos >> keyframe_granule_shift; + os->lastpos += pack->granulepos & iframemask; + *flags = (pack->granulepos & iframemask) == 0; + } else { + os->lastpos++; + } + pack->granulepos = os->lastpos; + *pts = (double)os->lastpos / (double)os->samplerate; + } #endif /* CONFIG_OGGTHEORA */ - } else if (os->flac) { - /* we pass complete packets to flac, mustn't strip the header! */ - if (os->flac == 2 && pack->packet[0] != 0xff) - return NULL; - } else { - if(*pack->packet & PACKET_TYPE_HEADER) - os->hdr_packets++; - else { - // Find data start - int16_t hdrlen = (*pack->packet & PACKET_LEN_BITS01)>>6; - hdrlen |= (*pack->packet & PACKET_LEN_BITS2) <<1; - data = pack->packet + 1 + hdrlen; - // Calculate the timestamp - if(pack->granulepos == -1) - pack->granulepos = os->lastpos + (os->lastsize ? os->lastsize : 1); - // If we already have a timestamp it can be a syncpoint - if(*pack->packet & PACKET_IS_SYNCPOINT) - *flags = 1; - *pts = pack->granulepos/os->samplerate; - // Save the packet length and timestamp - os->lastsize = 0; - while(hdrlen) { - os->lastsize <<= 8; - os->lastsize |= pack->packet[hdrlen]; - hdrlen--; + } else if (os->flac) { + /* we pass complete packets to flac, mustn't strip the header! */ + if (os->flac == 2 && pack->packet[0] != 0xff) + return NULL; + } else { + if (*pack->packet & PACKET_TYPE_HEADER) { + os->hdr_packets++; + } else { + // Find data start + int16_t hdrlen = (*pack->packet & PACKET_LEN_BITS01) >> 6; + + hdrlen |= (*pack->packet & PACKET_LEN_BITS2) << 1; + data = pack->packet + 1 + hdrlen; + // Calculate the timestamp + if (pack->granulepos == -1) + pack->granulepos = os->lastpos + (os->lastsize ? os->lastsize : 1); + // If we already have a timestamp it can be a syncpoint + if (*pack->packet & PACKET_IS_SYNCPOINT) + *flags = 1; + *pts = pack->granulepos / os->samplerate; + // Save the packet length and timestamp + os->lastsize = 0; + while (hdrlen) { + os->lastsize <<= 8; + os->lastsize |= pack->packet[hdrlen]; + hdrlen--; + } + os->lastpos = pack->granulepos; + } } - os->lastpos = pack->granulepos; - } - } - return data; + return data; } // check if clang has substring from comma separated langlist static int demux_ogg_check_lang(const char *clang, const char *langlist) { - const char *c; - - if (!langlist || !*langlist) + const char *c; + + if (!langlist || !*langlist) + return 0; + while ((c = strchr(langlist, ','))) { + if (!strncasecmp(clang, langlist, c - langlist)) + return 1; + langlist = &c[1]; + } + if (!strncasecmp(clang, langlist, strlen(langlist))) + return 1; return 0; - while ((c = strchr(langlist, ','))) - { - if (!strncasecmp(clang, langlist, c - langlist)) - return 1; - langlist = &c[1]; - } - if (!strncasecmp(clang, langlist, strlen(langlist))) - return 1; - return 0; } /** \brief Change the current subtitle stream and return its ID. @@ -377,1216 +373,1297 @@ static int demux_ogg_check_lang(const char *clang, const char *langlist) \returns The Ogg stream number ( = page serial number) of the newly selected track. -*/ + */ static int demux_ogg_sub_id(demuxer_t *demuxer, int index) { - ogg_demuxer_t *ogg_d = demuxer->priv; - return (index < 0) ? index : (index >= ogg_d->n_text) ? -1 : ogg_d->text_ids[index]; + ogg_demuxer_t *ogg_d = demuxer->priv; + return (index < 0) ? index : (index >= ogg_d->n_text) ? -1 : ogg_d->text_ids[index]; } /** \brief Translate the ogg track number into the subtitle number. * \param demuxer The demuxer about whose subtitles we are inquiring. * \param id The ogg track number of the subtitle track. */ -static int demux_ogg_sub_reverse_id(demuxer_t *demuxer, int id) { - ogg_demuxer_t *ogg_d = demuxer->priv; - int i; - for (i = 0; i < ogg_d->n_text; i++) - if (ogg_d->text_ids[i] == id) return i; - return -1; +static int demux_ogg_sub_reverse_id(demuxer_t *demuxer, int id) +{ + ogg_demuxer_t *ogg_d = demuxer->priv; + int i; + + for (i = 0; i < ogg_d->n_text; i++) + if (ogg_d->text_ids[i] == id) + return i; + return -1; } /// Try to print out comments and also check for LANGUAGE= tag -static void demux_ogg_check_comments(demuxer_t *d, ogg_stream_t *os, int id, vorbis_comment *vc) +static void demux_ogg_check_comments(demuxer_t *d, ogg_stream_t *os, + int id, vorbis_comment *vc) { - const char *hdr, *val; - char **cmt = vc->user_comments; - int index, i; - ogg_demuxer_t *ogg_d = d->priv; - static const struct table { - const char *ogg; - const char *mp; - } table[] = { - { "ENCODED_USING", "Software" }, - { "ENCODER_URL", "Encoder URL" }, - { "TITLE", "Title" }, - { "ARTIST", "Artist" }, - { "COMMENT", "Comments" }, - { "DATE", "Creation Date" }, - { "GENRE", "Genre" }, - { "ALBUM", "Album" }, - { "TRACKNUMBER", "Track" }, - { NULL, NULL }, - }; - - while(*cmt) - { - hdr = NULL; - if (!strncasecmp(*cmt, "LANGUAGE=", 9)) - { - val = *cmt + 9; - if (ogg_d->subs[id].text) - mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", ogg_d->subs[id].id, val); - else if (id != d->video->id) - mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", ogg_d->subs[id].id, val); - if (ogg_d->subs[id].text) - mp_msg(MSGT_DEMUX, MSGL_INFO, "[Ogg] Language for -sid %d is '-slang \"%s\"'\n", ogg_d->subs[id].id, val); - // copy this language name into the array - index = demux_ogg_sub_reverse_id(d, id); - if (index >= 0) { - sh_sub_t* sh; - // in case of malicious files with more than one lang per track: - if (ogg_d->text_langs[index]) free(ogg_d->text_langs[index]); - ogg_d->text_langs[index] = strdup(val); - sh = d->s_streams[index]; - if (sh && sh->lang) free(sh->lang); - if (sh) sh->lang = strdup(val); - } - // check for -slang if subs are uninitialized yet - if (os->text && d->sub->id < 0 && demux_ogg_check_lang(val, dvdsub_lang)) - { - d->sub->id = index; - d->opts->sub_id = index; - mp_msg(MSGT_DEMUX, MSGL_V, "Ogg demuxer: Displaying subtitle stream id %d which matched -slang %s\n", id, val); - } - else - hdr = "Language"; - } - else { - for (i = 0; table[i].ogg; i++) - { - if (!strncasecmp(*cmt, table[i].ogg, strlen(table[i].ogg)) && - (*cmt)[strlen(table[i].ogg)] == '=') - { - hdr = table[i].mp; - val = *cmt + strlen(table[i].ogg) + 1; - } - } + const char *hdr, *val; + char **cmt = vc->user_comments; + int index, i; + ogg_demuxer_t *ogg_d = d->priv; + static const struct table { + const char *ogg; + const char *mp; + } table[] = { + { "ENCODED_USING", "Software" }, + { "ENCODER_URL", "Encoder URL" }, + { "TITLE", "Title" }, + { "ARTIST", "Artist" }, + { "COMMENT", "Comments" }, + { "DATE", "Creation Date" }, + { "GENRE", "Genre" }, + { "ALBUM", "Album" }, + { "TRACKNUMBER", "Track" }, + { NULL, NULL }, + }; + + while (*cmt) { + hdr = NULL; + if (!strncasecmp(*cmt, "LANGUAGE=", 9)) { + val = *cmt + 9; + if (ogg_d->subs[id].text) + mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_SID_%d_LANG=%s\n", + ogg_d->subs[id].id, val); + else if (id != d->video->id) + mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_AID_%d_LANG=%s\n", + ogg_d->subs[id].id, val); + if (ogg_d->subs[id].text) + mp_msg(MSGT_DEMUX, MSGL_INFO, + "[Ogg] Language for -sid %d is '-slang \"%s\"'\n", + ogg_d->subs[id].id, val); + // copy this language name into the array + index = demux_ogg_sub_reverse_id(d, id); + if (index >= 0) { + sh_sub_t *sh; + + // in case of malicious files with more than one lang per track: + if (ogg_d->text_langs[index]) + free(ogg_d->text_langs[index]); + ogg_d->text_langs[index] = strdup(val); + sh = d->s_streams[index]; + if (sh && sh->lang) + free(sh->lang); + if (sh) + sh->lang = strdup(val); + } + // check for -slang if subs are uninitialized yet + if (os->text && d->sub->id < 0 && demux_ogg_check_lang(val, dvdsub_lang)) { + d->sub->id = index; + d->opts->sub_id = index; + mp_msg(MSGT_DEMUX, MSGL_V, + "Ogg demuxer: Displaying subtitle stream id %d which matched -slang %s\n", + id, val); + } + else + hdr = "Language"; + } + else { + for (i = 0; table[i].ogg; i++) { + if (!strncasecmp(*cmt, table[i].ogg, strlen(table[i].ogg)) && + (*cmt)[strlen(table[i].ogg)] == '=') { + hdr = table[i].mp; + val = *cmt + strlen(table[i].ogg) + 1; + } + } + } + if (hdr) + demux_info_add(d, hdr, val); + mp_dbg(MSGT_DEMUX, MSGL_DBG2, " %s: %s\n", hdr, val); + cmt++; } - if (hdr) - demux_info_add(d, hdr, val); - mp_dbg(MSGT_DEMUX, MSGL_DBG2, " %s: %s\n", hdr, val); - cmt++; - } } /// Calculate the timestamp and add the packet to the demux stream // return 1 if the packet was added, 0 otherwise -static int demux_ogg_add_packet(demux_stream_t* ds,ogg_stream_t* os,int id,ogg_packet* pack) { - demuxer_t* d = ds->demuxer; - demux_packet_t* dp; - unsigned char* data; - float pts = 0; - int flags = 0; - int samplesize = 1; - - // If packet is an comment header then we try to get comments at first - if (pack->bytes >= 7 && !memcmp(pack->packet, "\003vorbis", 7)) - { - vorbis_info vi; - vorbis_comment vc; - - vorbis_info_init(&vi); - vorbis_comment_init(&vc); - vi.rate = 1L; // it's checked by vorbis_synthesis_headerin() - if(vorbis_synthesis_headerin(&vi, &vc, pack) == 0) // if no errors - demux_ogg_check_comments(d, os, id, &vc); - vorbis_comment_clear(&vc); - vorbis_info_clear(&vi); - } - if (os->text) { - if (id == demux_ogg_sub_id(d, d->sub->id)) // don't want to add subtitles to the demuxer for now - demux_ogg_add_sub(os,pack); - return 0; - } - if (os->speex) { - // discard first two packets, they contain the header and comment - if (os->hdr_packets < 2) { - os->hdr_packets++; - return 0; +static int demux_ogg_add_packet(demux_stream_t *ds, ogg_stream_t *os, + int id, ogg_packet *pack) +{ + demuxer_t *d = ds->demuxer; + demux_packet_t *dp; + unsigned char *data; + float pts = 0; + int flags = 0; + int samplesize = 1; + + // If packet is an comment header then we try to get comments at first + if (pack->bytes >= 7 && !memcmp(pack->packet, "\003vorbis", 7)) { + vorbis_info vi; + vorbis_comment vc; + + vorbis_info_init(&vi); + vorbis_comment_init(&vc); + vi.rate = 1L; // it's checked by vorbis_synthesis_headerin() + if (vorbis_synthesis_headerin(&vi, &vc, pack) == 0) // if no errors + demux_ogg_check_comments(d, os, id, &vc); + vorbis_comment_clear(&vc); + vorbis_info_clear(&vi); + } + if (os->text) { + if (id == demux_ogg_sub_id(d, d->sub->id)) // don't want to add subtitles to the demuxer for now + demux_ogg_add_sub(os, pack); + return 0; + } + if (os->speex) { + // discard first two packets, they contain the header and comment + if (os->hdr_packets < 2) { + os->hdr_packets++; + return 0; + } + } else { + // If packet is an header we jump it except for vorbis and theora + // (PACKET_TYPE_HEADER bit doesn't even exist for theora ?!) + // We jump nothing for FLAC. Ain't this great? Packet contents have to be + // handled differently for each and every stream type. The joy! The joy! + if (!os->flac && (*pack->packet & PACKET_TYPE_HEADER) && + (ds != d->audio || ((sh_audio_t*)ds->sh)->format != FOURCC_VORBIS || os->hdr_packets >= NUM_VORBIS_HDR_PACKETS ) && + (ds != d->video || (((sh_video_t*)ds->sh)->format != FOURCC_THEORA))) + return 0; } - } else - // If packet is an header we jump it except for vorbis and theora - // (PACKET_TYPE_HEADER bit doesn't even exist for theora ?!) - // We jump nothing for FLAC. Ain't this great? Packet contents have to be - // handled differently for each and every stream type. The joy! The joy! - if(!os->flac && (*pack->packet & PACKET_TYPE_HEADER) && - (ds != d->audio || ((sh_audio_t*)ds->sh)->format != FOURCC_VORBIS || os->hdr_packets >= NUM_VORBIS_HDR_PACKETS ) && - (ds != d->video || (((sh_video_t*)ds->sh)->format != FOURCC_THEORA))) - return 0; - - // For vorbis packet the packet is the data, for other codec we must jump - // the header - if(ds == d->audio && ((sh_audio_t*)ds->sh)->format == FOURCC_VORBIS) { - samplesize = ((sh_audio_t *)ds->sh)->samplesize; - } - data = demux_ogg_read_packet(os,pack,&pts,&flags,samplesize); - if (!data) - return 0; - /// Clear subtitles if necessary (for broken files) - if (sub_clear_text(&ogg_sub, pts)) { - vo_sub = &ogg_sub; - vo_osd_changed(OSDTYPE_SUBTITLE); - } - /// Send the packet - dp = new_demux_packet(pack->bytes-(data-pack->packet)); - memcpy(dp->buffer,data,pack->bytes-(data-pack->packet)); - dp->pts = pts; - dp->flags = flags; - ds_add_packet(ds,dp); - mp_msg(MSGT_DEMUX,MSGL_DBG2,"New dp: %p ds=%p pts=%5.3f len=%d flag=%d \n", - dp, ds, pts, dp->len, flags); - return 1; + // For vorbis packet the packet is the data, for other codec we must jump + // the header + if (ds == d->audio && ((sh_audio_t*)ds->sh)->format == FOURCC_VORBIS) { + samplesize = ((sh_audio_t *)ds->sh)->samplesize; + } + data = demux_ogg_read_packet(os, pack, &pts, &flags, samplesize); + if (!data) + return 0; + + /// Clear subtitles if necessary (for broken files) + if (sub_clear_text(&ogg_sub, pts)) { + vo_sub = &ogg_sub; + vo_osd_changed(OSDTYPE_SUBTITLE); + } + /// Send the packet + dp = new_demux_packet(pack->bytes - (data - pack->packet)); + memcpy(dp->buffer, data, pack->bytes - (data - pack->packet)); + dp->pts = pts; + dp->flags = flags; + ds_add_packet(ds, dp); + mp_msg(MSGT_DEMUX, MSGL_DBG2, + "New dp: %p ds=%p pts=%5.3f len=%d flag=%d \n", + dp, ds, pts, dp->len, flags); + return 1; } /// if -forceidx build a table of all syncpoints to make seeking easier /// otherwise try to get at least the final_granulepos static void demux_ogg_scan_stream(demuxer_t *demuxer) { - ogg_demuxer_t* ogg_d = demuxer->priv; - stream_t *s = demuxer->stream; - ogg_sync_state* sync = &ogg_d->sync; - ogg_page* page= &ogg_d->page; - ogg_stream_state* oss; - ogg_stream_t* os; - ogg_packet op; - int np,sid,p,samplesize=1; - off_t pos, last_pos; - pos = last_pos = demuxer->movi_start; - - // Reset the stream - stream_seek(s,demuxer->movi_start); - ogg_sync_reset(sync); - - // Get the serial number of the stream we use - if(demuxer->video->id >= 0) { - sid = demuxer->video->id; - } - else if(demuxer->audio->id >= 0) { - sid = demuxer->audio->id; - if(((sh_audio_t*)demuxer->audio->sh)->format == FOURCC_VORBIS) { - samplesize = ((sh_audio_t*)demuxer->audio->sh)->samplesize; - } - } - else return; - os = &ogg_d->subs[sid]; - oss = &os->stream; - - while(1) { - np = ogg_sync_pageseek(sync,page); - if(np < 0) { // We had to skip some bytes - if(index_mode == 2) mp_msg(MSGT_DEMUX,MSGL_ERR,"Bad page sync while building syncpoints table (%d)\n",-np); - pos += -np; - continue; - } - if(np <= 0) { // We need more data - char* buf = ogg_sync_buffer(sync,BLOCK_SIZE); - int len = stream_read(s,buf,BLOCK_SIZE); - if(len == 0 && s->eof) - break; - ogg_sync_wrote(sync,len); - continue; - } - // The page is ready - //ogg_sync_pageout(sync,page); - if(ogg_page_serialno(page) != os->stream.serialno) { // It isn't a page from the stream we want - pos += np; - continue; - } - if(ogg_stream_pagein(oss,page) != 0) { - mp_msg(MSGT_DEMUX,MSGL_ERR,"Pagein error ????\n"); - pos += np; - continue; + ogg_demuxer_t *ogg_d = demuxer->priv; + stream_t *s = demuxer->stream; + ogg_sync_state *sync = &ogg_d->sync; + ogg_page *page = &ogg_d->page; + ogg_stream_state *oss; + ogg_stream_t *os; + ogg_packet op; + int np, sid, p, samplesize = 1; + off_t pos, last_pos; + + pos = last_pos = demuxer->movi_start; + + // Reset the stream + stream_seek(s, demuxer->movi_start); + ogg_sync_reset(sync); + + // Get the serial number of the stream we use + if (demuxer->video->id >= 0) { + sid = demuxer->video->id; + } else if (demuxer->audio->id >= 0) { + sid = demuxer->audio->id; + if (((sh_audio_t*)demuxer->audio->sh)->format == FOURCC_VORBIS) + samplesize = ((sh_audio_t*)demuxer->audio->sh)->samplesize; + } else + return; + os = &ogg_d->subs[sid]; + oss = &os->stream; + + while (1) { + np = ogg_sync_pageseek(sync, page); + if (np < 0) { // We had to skip some bytes + if (index_mode == 2) + mp_msg(MSGT_DEMUX, MSGL_ERR, + "Bad page sync while building syncpoints table (%d)\n", + -np); + pos += -np; + continue; + } + if (np <= 0) { // We need more data + char *buf = ogg_sync_buffer(sync, BLOCK_SIZE); + int len = stream_read(s, buf, BLOCK_SIZE); + + if (len == 0 && s->eof) + break; + ogg_sync_wrote(sync, len); + continue; + } + // The page is ready + //ogg_sync_pageout(sync, page); + if (ogg_page_serialno(page) != os->stream.serialno) { // It isn't a page from the stream we want + pos += np; + continue; + } + if (ogg_stream_pagein(oss, page) != 0) { + mp_msg(MSGT_DEMUX, MSGL_ERR, "Pagein error ????\n"); + pos += np; + continue; + } + p = 0; + while (ogg_stream_packetout(oss, &op) == 1) { + float pts; + int flags; + + demux_ogg_read_packet(os, &op, &pts, &flags, samplesize); + if (op.granulepos >= 0) { + ogg_d->final_granulepos = op.granulepos; + if (ogg_d->initial_granulepos == MP_NOPTS_VALUE && (flags & 1)) { + ogg_d->initial_granulepos = op.granulepos; + if (index_mode != 2 && ogg_d->pos < demuxer->movi_end - 2 * 270000) { + //the 270000 are just a wild guess + stream_seek(s, FFMAX(ogg_d->pos, demuxer->movi_end - 270000)); + ogg_sync_reset(sync); + continue; + } + } + } + if (index_mode == 2 && (flags || (os->vorbis && op.granulepos >= 0))) { + if (ogg_d->num_syncpoint > SIZE_MAX / sizeof(ogg_syncpoint_t) - 1) + break; + ogg_d->syncpoints = realloc_struct(ogg_d->syncpoints, (ogg_d->num_syncpoint + 1), sizeof(ogg_syncpoint_t)); + ogg_d->syncpoints[ogg_d->num_syncpoint].granulepos = op.granulepos; + ogg_d->syncpoints[ogg_d->num_syncpoint].page_pos = (ogg_page_continued(page) && p == 0) ? last_pos : pos; + ogg_d->num_syncpoint++; + } + p++; + } + if (p > 1 || (p == 1 && !ogg_page_continued(page))) + last_pos = pos; + pos += np; + if (index_mode == 2) + mp_msg(MSGT_DEMUX, MSGL_INFO, "Building syncpoint table %d%%\r", + (int)(pos * 100 / s->end_pos)); } - p = 0; - while(ogg_stream_packetout(oss,&op) == 1) { - float pts; - int flags; - demux_ogg_read_packet(os,&op,&pts,&flags,samples |