/* * native Matroska demuxer * Written by Aurelien Jacobs * Based on the one written by Ronald Bultje for gstreamer * and on demux_mkv.cpp from Moritz Bunkus. * Licence: GPL */ #include "config.h" #ifdef HAVE_MATROSKA #include #include #include #include "stream.h" #include "demuxer.h" #include "stheader.h" #include "ebml.h" #include "matroska.h" #include "bswap.h" #include "../subreader.h" #include "../libvo/sub.h" #ifdef USE_QTX_CODECS #include "qtx/qtxsdk/components.h" #endif #ifdef HAVE_ZLIB #include #endif #ifdef USE_LIBLZO #include #else #include "../libmpcodecs/native/minilzo.h" #endif typedef struct { uint32_t order, type, scope; uint32_t comp_algo; uint8_t *comp_settings; int comp_settings_len; } mkv_content_encoding_t; typedef struct mkv_track { int tnum; char *codec_id; int ms_compat; char *language; int type; uint32_t v_width, v_height, v_dwidth, v_dheight; float v_frate; uint32_t a_formattag; uint32_t a_channels, a_bps; float a_sfreq; float default_duration; int default_track; void *private_data; unsigned int private_size; /* for vorbis audio */ unsigned char *headers[3]; uint32_t header_sizes[3]; /* stuff for realmedia */ int realmedia; int rv_kf_base, rv_kf_pts; float rv_pts; /* previous video timestamp */ float ra_pts; /* previous audio timestamp */ /* stuff for quicktime */ int fix_i_bps; float qt_last_a_pts; int subtitle_type; /* generic content encoding support */ mkv_content_encoding_t *encodings; int num_encodings; } mkv_track_t; typedef struct mkv_index { int tnum; uint64_t timecode, filepos; } mkv_index_t; typedef struct mkv_chapter { uint64_t start, end; } mkv_chapter_t; typedef struct mkv_demuxer { off_t segment_start; float duration, last_pts; uint64_t last_filepos; mkv_track_t **tracks; int num_tracks; uint64_t tc_scale, cluster_tc, first_tc; int has_first_tc; uint64_t clear_subs_at[SUB_MAX_TEXT]; subtitle subs; uint64_t cluster_size; uint64_t blockgroup_size; mkv_index_t *indexes; int num_indexes; off_t *parsed_cues; int parsed_cues_num; off_t *parsed_seekhead; int parsed_seekhead_num; uint64_t *cluster_positions; int num_cluster_pos; int64_t skip_to_timecode; int v_skip_to_keyframe, a_skip_to_keyframe; mkv_chapter_t *chapters; int num_chapters; int64_t stop_timecode; } mkv_demuxer_t; typedef struct { uint32_t chunks; /* number of chunks */ uint32_t timestamp; /* timestamp from packet header */ uint32_t len; /* length of actual data */ uint32_t chunktab; /* offset to chunk offset array */ } dp_hdr_t; typedef struct __attribute__((__packed__)) { uint32_t size; uint32_t fourcc1; uint32_t fourcc2; uint16_t width; uint16_t height; uint16_t bpp; uint32_t unknown1; uint32_t fps; uint32_t type1; uint32_t type2; } real_video_props_t; typedef struct __attribute__((__packed__)) { uint32_t fourcc1; /* '.', 'r', 'a', 0xfd */ uint16_t version1; /* 4 or 5 */ uint16_t unknown1; /* 00 000 */ uint32_t fourcc2; /* .ra4 or .ra5 */ uint32_t unknown2; /* ??? */ uint16_t version2; /* 4 or 5 */ uint32_t header_size; /* == 0x4e */ uint16_t flavor; /* codec flavor id */ uint32_t coded_frame_size; /* coded frame size */ uint32_t unknown3; /* big number */ uint32_t unknown4; /* bigger number */ uint32_t unknown5; /* yet another number */ uint16_t sub_packet_h; uint16_t frame_size; uint16_t sub_packet_size; uint16_t unknown6; /* 00 00 */ uint16_t sample_rate; uint16_t unknown8; /* 0 */ uint16_t sample_size; uint16_t channels; } real_audio_v4_props_t; typedef struct __attribute__((__packed__)) { uint32_t fourcc1; /* '.', 'r', 'a', 0xfd */ uint16_t version1; /* 4 or 5 */ uint16_t unknown1; /* 00 000 */ uint32_t fourcc2; /* .ra4 or .ra5 */ uint32_t unknown2; /* ??? */ uint16_t version2; /* 4 or 5 */ uint32_t header_size; /* == 0x4e */ uint16_t flavor; /* codec flavor id */ uint32_t coded_frame_size; /* coded frame size */ uint32_t unknown3; /* big number */ uint32_t unknown4; /* bigger number */ uint32_t unknown5; /* yet another number */ uint16_t sub_packet_h; uint16_t frame_size; uint16_t sub_packet_size; uint16_t unknown6; /* 00 00 */ uint8_t unknown7[6]; /* 0, srate, 0 */ uint16_t sample_rate; uint16_t unknown8; /* 0 */ uint16_t sample_size; uint16_t channels; uint32_t genr; /* "genr" */ uint32_t fourcc3; /* fourcc */ } real_audio_v5_props_t; /* for e.g. "-slang ger" */ extern char *dvdsub_lang; extern char *audio_lang; static mkv_track_t * demux_mkv_find_track_by_num (mkv_demuxer_t *d, int n, int type) { int i, id; for (i=0, id=0; i < d->num_tracks; i++) if (d->tracks[i] != NULL && d->tracks[i]->type == type) if (id++ == n) return d->tracks[i]; return NULL; } static mkv_track_t * demux_mkv_find_track_by_language (mkv_demuxer_t *d, char *language, int type) { int i, len; language += strspn(language,","); while((len = strcspn(language,",")) > 0) { for (i=0; i < d->num_tracks; i++) if (d->tracks[i] != NULL && d->tracks[i]->language != NULL && d->tracks[i]->type == type && !strncmp(d->tracks[i]->language, language, len)) return d->tracks[i]; language += len; language += strspn(language,","); } return NULL; } static void add_cluster_position (mkv_demuxer_t *mkv_d, uint64_t position) { int i = mkv_d->num_cluster_pos; while (i--) if (mkv_d->cluster_positions[i] == position) return; if (!mkv_d->cluster_positions) mkv_d->cluster_positions = (uint64_t *) malloc (32 * sizeof (uint64_t)); else if (!(mkv_d->num_cluster_pos % 32)) mkv_d->cluster_positions = (uint64_t *) realloc(mkv_d->cluster_positions, (mkv_d->num_cluster_pos+32) * sizeof (uint64_t)); mkv_d->cluster_positions[mkv_d->num_cluster_pos++] = position; } #define AAC_SYNC_EXTENSION_TYPE 0x02b7 static int aac_get_sample_rate_index (uint32_t sample_rate) { if (92017 <= sample_rate) return 0; else if (75132 <= sample_rate) return 1; else if (55426 <= sample_rate) return 2; else if (46009 <= sample_rate) return 3; else if (37566 <= sample_rate) return 4; else if (27713 <= sample_rate) return 5; else if (23004 <= sample_rate) return 6; else if (18783 <= sample_rate) return 7; else if (13856 <= sample_rate) return 8; else if (11502 <= sample_rate) return 9; else if (9391 <= sample_rate) return 10; else return 11; } static int demux_mkv_decode (mkv_track_t *track, uint8_t *src, uint8_t **dest, uint32_t *size, uint32_t type) { int i, result; int modified = 0; *dest = src; if (track->num_encodings <= 0) return 0; for (i=0; inum_encodings; i++) { if (!(track->encodings[i].scope & type)) continue; #ifdef HAVE_ZLIB if (track->encodings[i].comp_algo == 0) { /* zlib encoded track */ z_stream zstream; zstream.zalloc = (alloc_func) 0; zstream.zfree = (free_func) 0; zstream.opaque = (voidpf) 0; if (inflateInit (&zstream) != Z_OK) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] zlib initialization failed.\n"); return modified; } zstream.next_in = (Bytef *) src; zstream.avail_in = *size; modified = 1; *dest = (uint8_t *) malloc (*size); zstream.avail_out = *size; do { *size += 4000; *dest = (uint8_t *) realloc (*dest, *size); zstream.next_out = (Bytef *) (*dest + zstream.total_out); result = inflate (&zstream, Z_NO_FLUSH); if (result != Z_OK && result != Z_STREAM_END) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] zlib decompression failed.\n"); free(*dest); *dest = NULL; inflateEnd (&zstream); return modified; } zstream.avail_out += 4000; } while (zstream.avail_out == 4000 && zstream.avail_in != 0 && result != Z_STREAM_END); *size = zstream.total_out; inflateEnd (&zstream); } #endif if (track->encodings[i].comp_algo == 2) { /* lzo encoded track */ int dstlen = *size * 3; if (lzo_init () != LZO_E_OK) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] lzo initialization failed.\n"); return modified; } *dest = (uint8_t *) malloc (dstlen); while (1) { result = lzo1x_decompress_safe (src, *size, *dest, &dstlen, NULL); if (result == LZO_E_OK) break; if (result != LZO_E_OUTPUT_OVERRUN) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] lzo decompression failed.\n"); return modified; } mp_msg (MSGT_DEMUX, MSGL_DBG2, "[mkv] lzo decompression buffer too small.\n"); dstlen *= 2; *dest = (uint8_t *) realloc (*dest, dstlen); } *size = dstlen; } } return modified; } static int demux_mkv_read_info (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t length, l; int il; length = ebml_read_length (s, NULL); while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_TIMECODESCALE: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 1; mkv_d->tc_scale = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + timecode scale: %llu\n", mkv_d->tc_scale); break; } case MATROSKA_ID_DURATION: { long double num = ebml_read_float (s, &l); if (num == EBML_FLOAT_INVALID) return 1; mkv_d->duration = num * mkv_d->tc_scale / 1000000000.0; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + duration: %.3fs\n", mkv_d->duration); break; } default: ebml_read_skip (s, &l); break; } length -= l + il; } return 0; } static int demux_mkv_read_trackencodings (demuxer_t *demuxer, mkv_track_t *track) { stream_t *s = demuxer->stream; mkv_content_encoding_t *ce, e; uint64_t len, length, l; int il, n; ce = (mkv_content_encoding_t *) malloc (sizeof (*ce)); n = 0; len = length = ebml_read_length (s, &il); len += il; while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CONTENTENCODING: { uint64_t len; int i; memset (&e, 0, sizeof (e)); e.scope = 1; len = ebml_read_length (s, &i); l = len + i; while (len > 0) { uint64_t num, l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CONTENTENCODINGORDER: num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; e.order = num; break; case MATROSKA_ID_CONTENTENCODINGSCOPE: num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; e.scope = num; break; case MATROSKA_ID_CONTENTENCODINGTYPE: num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; e.type = num; break; case MATROSKA_ID_CONTENTCOMPRESSION: { uint64_t le; le = ebml_read_length (s, &i); l = le + i; while (le > 0) { uint64_t l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CONTENTCOMPALGO: num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; e.comp_algo = num; break; case MATROSKA_ID_CONTENTCOMPSETTINGS: l = ebml_read_length (s, &i); e.comp_settings = (uint8_t *) malloc (l); stream_read (s, e.comp_settings, l); e.comp_settings_len = l; l += i; break; default: ebml_read_skip (s, &l); break; } le -= l + il; } if (e.type == 1) { mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Track number %u has been encrypted " "and decryption has not yet been implemented." " Skipping track.\n", track->tnum); } else if (e.type != 0) { mp_msg(MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown content encoding type for " "track %u. Skipping track.\n", track->tnum); } if (e.comp_algo != 0 && e.comp_algo != 2) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Track %u has been compressed with an " "unknown/unsupported compression algorithm " "(%u). Skipping track.\n", track->tnum, e.comp_algo); } #ifndef HAVE_ZLIB else if (e.comp_algo == 0) { mp_msg (MSGT_DEMUX, MSGL_WARN, "Track %u was compressed with zlib but " "mplayer has not been compiled with support " "for zlib compression. Skipping track.\n", track->tnum); } #endif break; } default: ebml_read_skip (s, &l); break; } len -= l + il; } for (i=0; iencodings = ce; track->num_encodings = n; return len; } static int demux_mkv_read_trackaudio (demuxer_t *demuxer, mkv_track_t *track) { stream_t *s = demuxer->stream; uint64_t len, length, l; int il; track->a_sfreq = 8000.0; track->a_channels = 1; len = length = ebml_read_length (s, &il); len += il; while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_AUDIOSAMPLINGFREQ: { long double num = ebml_read_float (s, &l); if (num == EBML_FLOAT_INVALID) return 0; track->a_sfreq = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Sampling frequency: %f\n", track->a_sfreq); break; } case MATROSKA_ID_AUDIOBITDEPTH: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->a_bps = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Bit depth: %u\n", track->a_bps); break; } case MATROSKA_ID_AUDIOCHANNELS: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->a_channels = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Channels: %u\n", track->a_channels); break; } default: ebml_read_skip (s, &l); break; } length -= l + il; } return len; } static int demux_mkv_read_trackvideo (demuxer_t *demuxer, mkv_track_t *track) { stream_t *s = demuxer->stream; uint64_t len, length, l; int il; len = length = ebml_read_length (s, &il); len += il; while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_VIDEOFRAMERATE: { long double num = ebml_read_float (s, &l); if (num == EBML_FLOAT_INVALID) return 0; track->v_frate = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Frame rate: %f\n", track->v_frate); break; } case MATROSKA_ID_VIDEODISPLAYWIDTH: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->v_dwidth = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Display width: %u\n", track->v_dwidth); break; } case MATROSKA_ID_VIDEODISPLAYHEIGHT: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->v_dheight = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Display height: %u\n", track->v_dheight); break; } case MATROSKA_ID_VIDEOPIXELWIDTH: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->v_width = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Pixel width: %u\n", track->v_width); break; } case MATROSKA_ID_VIDEOPIXELHEIGHT: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->v_height = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Pixel height: %u\n", track->v_height); break; } default: ebml_read_skip (s, &l); break; } length -= l + il; } return len; } static int demux_mkv_read_trackentry (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; mkv_track_t *track; uint64_t len, length, l; int il; track = (mkv_track_t *) malloc (sizeof (*track)); memset(track, 0, sizeof(*track)); /* set default values */ track->default_track = 1; track->language = strdup("eng"); len = length = ebml_read_length (s, &il); len += il; while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_TRACKNUMBER: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->tnum = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Track number: %u\n", track->tnum); break; } case MATROSKA_ID_TRACKTYPE: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->type = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Track type: "); switch (track->type) { case MATROSKA_TRACK_AUDIO: mp_msg (MSGT_DEMUX, MSGL_V, "Audio\n"); break; case MATROSKA_TRACK_VIDEO: mp_msg (MSGT_DEMUX, MSGL_V, "Video\n"); break; case MATROSKA_TRACK_SUBTITLE: mp_msg (MSGT_DEMUX, MSGL_V, "Subtitle\n"); break; default: mp_msg (MSGT_DEMUX, MSGL_V, "unknown\n"); break; } break; } case MATROSKA_ID_TRACKAUDIO: mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Audio track\n"); l = demux_mkv_read_trackaudio (demuxer, track); if (l == 0) return 0; break; case MATROSKA_ID_TRACKVIDEO: mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Video track\n"); l = demux_mkv_read_trackvideo (demuxer, track); if (l == 0) return 0; break; case MATROSKA_ID_CODECID: track->codec_id = ebml_read_ascii (s, &l); if (track->codec_id == NULL) return 0; if (!strcmp (track->codec_id, MKV_V_MSCOMP) || !strcmp (track->codec_id, MKV_A_ACM)) track->ms_compat = 1; else if (!strcmp (track->codec_id, MKV_S_VOBSUB)) track->subtitle_type = MATROSKA_SUBTYPE_VOBSUB; else if (!strcmp (track->codec_id, MKV_S_TEXTSSA) || !strcmp (track->codec_id, MKV_S_TEXTASS) || !strcmp (track->codec_id, MKV_S_SSA) || !strcmp (track->codec_id, MKV_S_ASS)) { track->subtitle_type = MATROSKA_SUBTYPE_SSA; sub_utf8 = 1; } else if (!strcmp (track->codec_id, MKV_S_TEXTASCII)) track->subtitle_type = MATROSKA_SUBTYPE_TEXT; if (!strcmp (track->codec_id, MKV_S_TEXTUTF8)) { track->subtitle_type = MATROSKA_SUBTYPE_TEXT; sub_utf8 = 1; } mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Codec ID: %s\n", track->codec_id); break; case MATROSKA_ID_CODECPRIVATE: { int x; uint64_t num = ebml_read_length (s, &x); l = x + num; track->private_data = malloc (num); if (stream_read(s, track->private_data, num) != (int) num) return 0; track->private_size = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + CodecPrivate, length " "%u\n", track->private_size); break; } case MATROSKA_ID_TRACKLANGUAGE: track->language = ebml_read_utf8 (s, &l); if (track->language == NULL) return 0; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Language: %s\n", track->language); break; case MATROSKA_ID_TRACKFLAGDEFAULT: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; track->default_track = num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Default flag: %u\n", track->default_track); break; } case MATROSKA_ID_TRACKDEFAULTDURATION: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; if (num == 0) mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Default duration: 0"); else { track->v_frate = 1000000000.0 / num; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + Default duration: " "%.3fms ( = %.3f fps)\n",num/1000000.0,track->v_frate); } break; } case MATROSKA_ID_TRACKENCODINGS: l = demux_mkv_read_trackencodings (demuxer, track); if (l == 0) return 0; break; default: ebml_read_skip (s, &l); break; } length -= l + il; } mkv_d->tracks[mkv_d->num_tracks++] = track; return len; } static int demux_mkv_read_tracks (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t length, l; int il; mkv_d->tracks = (mkv_track_t **) malloc (sizeof (*mkv_d->tracks)); mkv_d->num_tracks = 0; length = ebml_read_length (s, NULL); while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_TRACKENTRY: mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] | + a track...\n"); mkv_d->tracks = (mkv_track_t **) realloc (mkv_d->tracks, (mkv_d->num_tracks+1) *sizeof (*mkv_d->tracks)); l = demux_mkv_read_trackentry (demuxer); if (l == 0) return 1; break; default: ebml_read_skip (s, &l); break; } length -= l + il; } return 0; } static int demux_mkv_read_cues (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t length, l, time, track, pos; off_t off; int i, il; off = stream_tell (s); for (i=0; iparsed_cues_num; i++) if (mkv_d->parsed_cues[i] == off) { ebml_read_skip (s, NULL); return 0; } mkv_d->parsed_cues = (off_t *) realloc (mkv_d->parsed_cues, (mkv_d->parsed_cues_num+1) * sizeof (off_t)); mkv_d->parsed_cues[mkv_d->parsed_cues_num++] = off; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing cues ] -----------\n"); length = ebml_read_length (s, NULL); while (length > 0) { time = track = pos = EBML_UINT_INVALID; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_POINTENTRY: { uint64_t len; len = ebml_read_length (s, &i); l = len + i; while (len > 0) { uint64_t l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CUETIME: time = ebml_read_uint (s, &l); break; case MATROSKA_ID_CUETRACKPOSITION: { uint64_t le; le = ebml_read_length (s, &i); l = le + i; while (le > 0) { uint64_t l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CUETRACK: track = ebml_read_uint (s, &l); break; case MATROSKA_ID_CUECLUSTERPOSITION: pos = ebml_read_uint (s, &l); break; default: ebml_read_skip (s, &l); break; } le -= l + il; } break; } default: ebml_read_skip (s, &l); break; } len -= l + il; } break; } default: ebml_read_skip (s, &l); break; } length -= l + il; if (time != EBML_UINT_INVALID && track != EBML_UINT_INVALID && pos != EBML_UINT_INVALID) { if (mkv_d->indexes == NULL) mkv_d->indexes = (mkv_index_t *) malloc (32*sizeof (mkv_index_t)); else if (mkv_d->num_indexes % 32 == 0) mkv_d->indexes = (mkv_index_t *) realloc (mkv_d->indexes, (mkv_d->num_indexes+32) *sizeof (mkv_index_t)); mkv_d->indexes[mkv_d->num_indexes].tnum = track; mkv_d->indexes[mkv_d->num_indexes].timecode = time; mkv_d->indexes[mkv_d->num_indexes].filepos =mkv_d->segment_start+pos; mp_msg (MSGT_DEMUX, MSGL_DBG2, "[mkv] |+ found cue point " "for track %llu: timecode %llu, filepos: %llu\n", track, time, mkv_d->segment_start + pos); mkv_d->num_indexes++; } } mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing cues ] -----------\n"); return 0; } static int demux_mkv_read_chapters (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t length, l; int il; if (mkv_d->chapters) { ebml_read_skip (s, NULL); return 0; } mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing chapters ] ---------\n"); length = ebml_read_length (s, NULL); while (length > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_EDITIONENTRY: { uint64_t len; int i; len = ebml_read_length (s, &i); l = len + i; while (len > 0) { uint64_t l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CHAPTERATOM: { uint64_t len, start=0, end=0; int i; len = ebml_read_length (s, &i); l = len + i; if (mkv_d->chapters == NULL) mkv_d->chapters = malloc (32*sizeof(*mkv_d->chapters)); else if (!(mkv_d->num_chapters % 32)) mkv_d->chapters = realloc (mkv_d->chapters, (mkv_d->num_chapters + 32) * sizeof(*mkv_d->chapters)); while (len > 0) { uint64_t l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CHAPTERTIMESTART: start = ebml_read_uint (s, &l) / 1000000; break; case MATROSKA_ID_CHAPTERTIMEEND: end = ebml_read_uint (s, &l) / 1000000; break; default: ebml_read_skip (s, &l); break; } len -= l + il; } mkv_d->chapters[mkv_d->num_chapters].start = start; mkv_d->chapters[mkv_d->num_chapters].end = end; mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] Chapter %u from %02d:%02d:%02d." "%03d to %02d:%02d:%02d.%03d\n", ++mkv_d->num_chapters, (int) (start / 60 / 60 / 1000), (int) ((start / 60 / 1000) % 60), (int) ((start / 1000) % 60), (int) (start % 1000), (int) (end / 60 / 60 / 1000), (int) ((end / 60 / 1000) % 60), (int) ((end / 1000) % 60), (int) (end % 1000)); break; } default: ebml_read_skip (s, &l); break; } len -= l + il; } break; } default: ebml_read_skip (s, &l); break; } length -= l + il; } mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing chapters ] ---------\n"); return 0; } static int demux_mkv_read_tags (demuxer_t *demuxer) { ebml_read_skip (demuxer->stream, NULL); return 0; } static int demux_mkv_read_seekhead (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t length, l, seek_pos, saved_pos, num; uint32_t seek_id; int i, il, res = 0; off_t off; off = stream_tell (s); for (i=0; iparsed_seekhead_num; i++) if (mkv_d->parsed_seekhead[i] == off) { ebml_read_skip (s, NULL); return 0; } mkv_d->parsed_seekhead = (off_t *) realloc (mkv_d->parsed_seekhead, (mkv_d->parsed_seekhead_num+1) * sizeof (off_t)); mkv_d->parsed_seekhead[mkv_d->parsed_seekhead_num++] = off; mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] /---- [ parsing seek head ] ---------\n"); length = ebml_read_length (s, NULL); while (length > 0 && !res) { seek_id = 0; seek_pos = EBML_UINT_INVALID; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_SEEKENTRY: { uint64_t len; len = ebml_read_length (s, &i); l = len + i; while (len > 0) { uint64_t l; int il; switch (ebml_read_id (s, &il)) { case MATROSKA_ID_SEEKID: num = ebml_read_uint (s, &l); if (num != EBML_UINT_INVALID) seek_id = num; break; case MATROSKA_ID_SEEKPOSITION: seek_pos = ebml_read_uint (s, &l); break; default: ebml_read_skip (s, &l); break; } len -= l + il; } break; } default: ebml_read_skip (s, &l); break; } length -= l + il; if (seek_id == 0 || seek_id == MATROSKA_ID_CLUSTER || seek_pos == EBML_UINT_INVALID || ((mkv_d->segment_start + seek_pos) >= (uint64_t)demuxer->movi_end)) continue; saved_pos = stream_tell (s); if (!stream_seek (s, mkv_d->segment_start + seek_pos)) res = 1; else { if (ebml_read_id (s, &il) != seek_id) res = 1; else switch (seek_id) { case MATROSKA_ID_CUES: if (demux_mkv_read_cues (demuxer)) res = 1; break; case MATROSKA_ID_TAGS: if (demux_mkv_read_tags (demuxer)) res = 1; break; case MATROSKA_ID_SEEKHEAD: if (demux_mkv_read_seekhead (demuxer)) res = 1; break; case MATROSKA_ID_CHAPTERS: if (demux_mkv_read_chapters (demuxer)) res = 1; break; } } stream_seek (s, saved_pos); } if (length > 0) stream_seek (s, stream_tell (s) + length); mp_msg(MSGT_DEMUX, MSGL_V, "[mkv] \\---- [ parsing seek head ] ---------\n"); return res; } static void display_tracks (mkv_demuxer_t *mkv_d) { int i, vid=0, aid=0, sid=0; for (i=0; inum_tracks; i++) { char *type = "unknown", str[32]; *str = '\0'; switch (mkv_d->tracks[i]->type) { case MATROSKA_TRACK_VIDEO: type = "video"; sprintf (str, "-vid %u", vid++); break; case MATROSKA_TRACK_AUDIO: type = "audio"; sprintf (str, "-aid %u, -alang %.5s",aid++,mkv_d->tracks[i]->language); break; case MATROSKA_TRACK_SUBTITLE: type = "sutitles"; sprintf (str, "-sid %u, -slang %.5s",sid++,mkv_d->tracks[i]->language); break; } mp_msg(MSGT_DEMUX, MSGL_INFO, "[mkv] Track ID %u: %s (%s), %s\n", mkv_d->tracks[i]->tnum, type, mkv_d->tracks[i]->codec_id, str); } } static int demux_mkv_open_video (demuxer_t *demuxer, mkv_track_t *track) { BITMAPINFOHEADER *bih; void *ImageDesc = NULL; sh_video_t *sh_v; if (track->ms_compat) /* MS compatibility mode */ { BITMAPINFOHEADER *src; if (track->private_data == NULL || track->private_size < sizeof (BITMAPINFOHEADER)) return 1; src = (BITMAPINFOHEADER *) track->private_data; bih = (BITMAPINFOHEADER *) malloc (track->private_size); memset (bih, 0, track->private_size); bih->biSize = le2me_32 (src->biSize); bih->biWidth = le2me_32 (src->biWidth); bih->biHeight = le2me_32 (src->biHeight); bih->biPlanes = le2me_16 (src->biPlanes); bih->biBitCount = le2me_16 (src->biBitCount); bih->biCompression = le2me_32 (src->biCompression); bih->biSizeImage = le2me_32 (src->biSizeImage); bih->biXPelsPerMeter = le2me_32 (src->biXPelsPerMeter); bih->biYPelsPerMeter = le2me_32 (src->biYPelsPerMeter); bih->biClrUsed = le2me_32 (src->biClrUsed); bih->biClrImportant = le2me_32 (src->biClrImportant); memcpy((char *) bih + sizeof (BITMAPINFOHEADER), (char *) src + sizeof (BITMAPINFOHEADER), track->private_size - sizeof (BITMAPINFOHEADER)); if (track->v_width == 0) track->v_width = bih->biWidth; if (track->v_height == 0) track->v_height = bih->biHeight; } else { bih = (BITMAPINFOHEADER *) malloc (sizeof (BITMAPINFOHEADER)); memset (bih, 0, sizeof (BITMAPINFOHEADER)); bih->biSize = sizeof (BITMAPINFOHEADER); bih->biWidth = track->v_width; bih->biHeight = track->v_height; bih->biBitCount = 24; bih->biSizeImage = bih->biWidth * bih->biHeight * bih->biBitCount/8; if (track->private_size >= sizeof (real_video_props_t) && (!strcmp (track->codec_id, MKV_V_REALV10) || !strcmp (track->codec_id, MKV_V_REALV20) || !strcmp (track->codec_id, MKV_V_REALV30) || !strcmp (track->codec_id, MKV_V_REALV40))) { unsigned char *dst, *src; real_video_props_t *rvp; uint32_t type2; rvp = (real_video_props_t *) track->private_data; src = (unsigned char *) (rvp + 1); bih = (BITMAPINFOHEADER *) realloc(bih, sizeof (BITMAPINFOHEADER)+12); bih->biSize = 48; bih->biPlanes = 1; type2 = be2me_32 (rvp->type2); if (type2 == 0x10003000 || type2 == 0x10003001) bih->biCompression=mmioFOURCC('R','V','1','3'); else bih->biCompression=mmioFOURCC('R','V',track->codec_id[9],'0'); dst = (unsigned char *) (bih + 1); ((unsigned int *) dst)[0] = be2me_32 (rvp->type1); ((unsigned int *) dst)[1] = type2; if (bih->biCompression <= 0x30335652 && type2 >= 0x20200002) { /* read secondary WxH for the cmsg24[] (see vd_realvid.c) */ ((unsigned short *)(bih+1))[4] = 4 * (unsigned short) src[0]; ((unsigned short *)(bih+1))[5] = 4 * (unsigned short) src[1]; } else memset(&dst[8], 0, 4); track->realmedia = 1; #ifdef USE_QTX_CODECS } else if (track->private_size >= sizeof (ImageDescription) && !strcmp(track->codec_id, MKV_V_QUICKTIME)) { ImageDescriptionPtr idesc; idesc = (ImageDescriptionPtr) track->private_data; idesc->idSize = be2me_32 (idesc->idSize); idesc->cType = be2me_32 (idesc->cType); idesc->version = be2me_16 (idesc->version); idesc->revisionLevel = be2me_16 (idesc->revisionLevel); idesc->vendor = be2me_32 (idesc->vendor); idesc->temporalQuality = be2me_32 (idesc->temporalQuality); idesc->spatialQuality = be2me_32 (idesc->spatialQuality); idesc->width = be2me_16 (idesc->width); idesc->height = be2me_16 (idesc->height); idesc->hRes = be2me_32 (idesc->hRes); idesc->vRes = be2me_32 (idesc->vRes); idesc->dataSize = be2me_32 (idesc->dataSize); idesc->frameCount = be2me_16 (idesc->frameCount); idesc->depth = be2me_16 (idesc->depth); idesc->clutID = be2me_16 (idesc->clutID); bih->biPlanes = 1; bih->biCompression = idesc->cType; ImageDesc = idesc; #endif /* USE_QTX_CODECS */ } else { mp_msg (MSGT_DEMUX,MSGL_WARN,"[mkv] Unknown/unsupported CodecID " "(%s) or missing/bad CodecPrivate data (track %u).\n", track->codec_id, track->tnum); free(bih); return 1; } } sh_v = new_sh_video (demuxer, track->tnum); sh_v->bih = bih; sh_v->format = sh_v->bih->biCompression; if (track->v_frate == 0.0) track->v_frate = 25.0; sh_v->fps = track->v_frate; sh_v->frametime = 1 / track->v_frate; if (!track->realmedia) { sh_v->disp_w = track->v_width; sh_v->disp_h = track->v_height; sh_v->aspect = (float)track->v_dwidth / (float)track->v_dheight; } else { // vd_realvid.c will set aspect to disp_w/disp_h and rederive // disp_w and disp_h from the RealVideo stream contents returned // by the Real DLLs. If DisplayWidth/DisplayHeight was not set in // the Matroska file then it has already been set to PixelWidth/Height // by check_track_information. sh_v->disp_w = track->v_dwidth; sh_v->disp_h = track->v_dheight; } sh_v->ImageDesc = ImageDesc; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] Aspect: %f\n", sh_v->aspect); sh_v->ds = demuxer->video; return 0; } static int demux_mkv_open_audio (demuxer_t *demuxer, mkv_track_t *track) { sh_audio_t *sh_a = new_sh_audio(demuxer, track->tnum); demux_packet_t *dp; int i; sh_a->ds = demuxer->audio; sh_a->wf = (WAVEFORMATEX *) malloc (sizeof (WAVEFORMATEX)); if (track->ms_compat && (track->private_size >= sizeof(WAVEFORMATEX))) { WAVEFORMATEX *wf = (WAVEFORMATEX *)track->private_data; sh_a->wf = (WAVEFORMATEX *) realloc(sh_a->wf, track->private_size); sh_a->wf->wFormatTag = le2me_16 (wf->wFormatTag); sh_a->wf->nChannels = le2me_16 (wf->nChannels); sh_a->wf->nSamplesPerSec = le2me_32 (wf->nSamplesPerSec); sh_a->wf->nAvgBytesPerSec = le2me_32 (wf->nAvgBytesPerSec); sh_a->wf->nBlockAlign = le2me_16 (wf->nBlockAlign); sh_a->wf->wBitsPerSample = le2me_16 (wf->wBitsPerSample); sh_a->wf->cbSize = track->private_size - sizeof(WAVEFORMATEX); memcpy(sh_a->wf + 1, wf + 1, track->private_size - sizeof(WAVEFORMATEX)); if (track->a_sfreq == 0.0) track->a_sfreq = sh_a->wf->nSamplesPerSec; if (track->a_channels == 0) track->a_channels = sh_a->wf->nChannels; if (track->a_bps == 0) track->a_bps = sh_a->wf->wBitsPerSample; track->a_formattag = sh_a->wf->wFormatTag; } else { memset(sh_a->wf, 0, sizeof (WAVEFORMATEX)); if (!strcmp(track->codec_id, MKV_A_MP3) || !strcmp(track->codec_id, MKV_A_MP2)) track->a_formattag = 0x0055; else if (!strncmp(track->codec_id, MKV_A_AC3, strlen(MKV_A_AC3)) || !strcmp(track->codec_id, MKV_A_DTS)) track->a_formattag = 0x2000; else if (!strcmp(track->codec_id, MKV_A_PCM) || !strcmp(track->codec_id, MKV_A_PCM_BE)) track->a_formattag = 0x0001; else if (!strcmp(track->codec_id, MKV_A_AAC_2MAIN) || !strncmp(track->codec_id, MKV_A_AAC_2LC, strlen(MKV_A_AAC_2LC)) || !strcmp(track->codec_id, MKV_A_AAC_2SSR) || !strcmp(track->codec_id, MKV_A_AAC_4MAIN) || !strncmp(track->codec_id, MKV_A_AAC_4LC, strlen(MKV_A_AAC_4LC)) || !strcmp(track->codec_id, MKV_A_AAC_4SSR) || !strcmp(track->codec_id, MKV_A_AAC_4LTP)) track->a_formattag = mmioFOURCC('M', 'P', '4', 'A'); else if (!strcmp(track->codec_id, MKV_A_VORBIS)) { unsigned char *c; uint32_t offset, length; if (track->private_data == NULL) return 1; c = (unsigned char *) track->private_data; if (*c != 2) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Vorbis track does not " "contain valid headers.\n"); return 1; } offset = 1; for (i=0; i < 2; i++) { length = 0; while (c[offset] == (unsigned char) 0xFF && length < track->private_size) { length += 255; offset++; } if (offset >= (track->private_size - 1)) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Vorbis track " "does not contain valid headers.\n"); return 1; } length += c[offset]; offset++; track->header_sizes[i] = length; } track->headers[0] = &c[offset]; track->headers[1] = &c[offset + track->header_sizes[0]]; track->headers[2] = &c[offset + track->header_sizes[0] + track->header_sizes[1]]; track->header_sizes[2] = track->private_size - offset - track->header_sizes[0] - track->header_sizes[1]; track->a_formattag = 0xFFFE; } else if (!strcmp(track->codec_id, MKV_A_QDMC)) track->a_formattag = mmioFOURCC('Q', 'D', 'M', 'C'); else if (!strcmp(track->codec_id, MKV_A_QDMC2)) track->a_formattag = mmioFOURCC('Q', 'D', 'M', '2'); else if (!strcmp(track->codec_id, MKV_A_FLAC)) { if (track->private_data == NULL || track->private_size == 0) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] FLAC track does not " "contain valid headers.\n"); return 1; } track->a_formattag = mmioFOURCC ('f', 'L', 'a', 'C'); } else if (track->private_size >= sizeof (real_audio_v4_props_t)) { if (!strcmp(track->codec_id, MKV_A_REAL28)) track->a_formattag = mmioFOURCC('2', '8', '_', '8'); else if (!strcmp(track->codec_id, MKV_A_REALATRC)) track->a_formattag = mmioFOURCC('a', 't', 'r', 'c'); else if (!strcmp(track->codec_id, MKV_A_REALCOOK)) track->a_formattag = mmioFOURCC('c', 'o', 'o', 'k'); else if (!strcmp(track->codec_id, MKV_A_REALDNET)) track->a_formattag = mmioFOURCC('d', 'n', 'e', 't'); else if (!strcmp(track->codec_id, MKV_A_REALSIPR)) track->a_formattag = mmioFOURCC('s', 'i', 'p', 'r'); } else { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Unknown/unsupported audio " "codec ID '%s' for track %u or missing/faulty private " "codec data.\n", track->codec_id, track->tnum); free_sh_audio (sh_a); return 1; } } sh_a->format = track->a_formattag; sh_a->wf->wFormatTag = track->a_formattag; sh_a->channels = track->a_channels; sh_a->wf->nChannels = track->a_channels; sh_a->samplerate = (uint32_t) track->a_sfreq; sh_a->wf->nSamplesPerSec = (uint32_t) track->a_sfreq; sh_a->samplesize = track->a_bps / 8; if (track->a_formattag == 0x0055) /* MP3 || MP2 */ { sh_a->wf->nAvgBytesPerSec = 16000; sh_a->wf->nBlockAlign = 1152; sh_a->wf->wBitsPerSample = 0; sh_a->samplesize = 0; } else if (!strncmp(track->codec_id, MKV_A_AC3, strlen(MKV_A_AC3))) { sh_a->wf->nAvgBytesPerSec = 16000; sh_a->wf->nBlockAlign = 1536; sh_a->wf->wBitsPerSample = 0; sh_a->samplesize = 0; } else if (track->a_formattag == 0x0001) /* PCM || PCM_BE */ { sh_a->wf->nAvgBytesPerSec = sh_a->channels * sh_a->samplerate*2; sh_a->wf->nBlockAlign = sh_a->wf->nAvgBytesPerSec; sh_a->wf->wBitsPerSample = track->a_bps; if (!strcmp(track->codec_id, MKV_A_PCM_BE)) sh_a->format = mmioFOURCC('t', 'w', 'o', 's'); } else if (!strcmp(track->codec_id, MKV_A_QDMC) || !strcmp(track->codec_id, MKV_A_QDMC2)) { sh_a->wf->wBitsPerSample = track->a_bps; sh_a->wf->nAvgBytesPerSec = 16000; sh_a->wf->nBlockAlign = 1486; track->fix_i_bps = 1; track->qt_last_a_pts = 0.0; if (track->private_data != NULL) { sh_a->codecdata=(unsigned char *)malloc(track->private_size); memcpy (sh_a->codecdata, track->private_data, track->private_size); sh_a->codecdata_len = track->private_size; } } else if (track->a_formattag == mmioFOURCC('M', 'P', '4', 'A')) { int profile, srate_idx; sh_a->wf->nAvgBytesPerSec = 16000; sh_a->wf->nBlockAlign = 1024; sh_a->wf->wBitsPerSample = 0; sh_a->samplesize = 0; /* Recreate the 'private data' */ /* which faad2 uses in its initialization */ srate_idx = aac_get_sample_rate_index (sh_a->samplerate); if (!strncmp (&track->codec_id[12], "MAIN", 4)) profile = 0; else if (!strncmp (&track->codec_id[12], "LC", 2)) profile = 1; else if (!strncmp (&track->codec_id[12], "SSR", 3)) profile = 2; else profile = 3; sh_a->codecdata = (unsigned char *) malloc (5); sh_a->codecdata[0] = ((profile+1) << 3) | ((srate_idx&0xE) >> 1); sh_a->codecdata[1] = ((srate_idx&0x1)<<7)|(track->a_channels<<3); if (strstr(track->codec_id, "SBR") != NULL) { /* HE-AAC (aka SBR AAC) */ sh_a->codecdata_len = 5; sh_a->samplerate *= 2; sh_a->wf->nSamplesPerSec *= 2; srate_idx = aac_get_sample_rate_index(sh_a->samplerate); sh_a->codecdata[2] = AAC_SYNC_EXTENSION_TYPE >> 3; sh_a->codecdata[3] = ((AAC_SYNC_EXTENSION_TYPE&0x07)<<5) | 5; sh_a->codecdata[4] = (1 << 7) | (srate_idx << 3); track->default_duration = 1024.0 / (sh_a->samplerate / 2); } else { sh_a->codecdata_len = 2; track->default_duration = 1024.0 / (float)sh_a->samplerate; } } else if (track->a_formattag == 0xFFFE) /* VORBIS */ { for (i=0; i < 3; i++) { dp = new_demux_packet (track->header_sizes[i]); memcpy (dp->buffer,track->headers[i],track->header_sizes[i]); dp->pts = 0; dp->flags = 0; ds_add_packet (demuxer->audio, dp); } } else if (track->private_size >= sizeof(real_audio_v4_props_t) && !strncmp (track->codec_id, MKV_A_REALATRC, 7)) { /* Common initialization for all RealAudio codecs */ real_audio_v4_props_t *ra4p; real_audio_v5_props_t *ra5p; unsigned char *src; int codecdata_length, version; ra4p = (real_audio_v4_props_t *) track->private_data; ra5p = (real_audio_v5_props_t *) track->private_data; sh_a->wf->wBitsPerSample = sh_a->samplesize * 8; sh_a->wf->nAvgBytesPerSec = 0; /* FIXME !? */ sh_a->wf->nBlockAlign = be2me_16 (ra4p->frame_size); version = be2me_16 (ra4p->version1); if (version == 4) { src = (unsigned char *) (ra4p + 1); src += src[0] + 1; src += src[0] + 1; } else src = (unsigned char *) (ra5p + 1); src += 3; if (version == 5) src++; codecdata_length = be2me_32 (*(uint32_t *)src); src += 4; sh_a->wf->cbSize = 10 + codecdata_length; sh_a->wf = (WAVEFORMATEX *) realloc (sh_a->wf, sizeof (WAVEFORMATEX) + sh_a->wf->cbSize); ((short *)(sh_a->wf + 1))[0] = be2me_16 (ra4p->sub_packet_size); ((short *)(sh_a->wf + 1))[1] = be2me_16 (ra4p->sub_packet_h); ((short *)(sh_a->wf + 1))[2] = be2me_16 (ra4p->flavor); ((short *)(sh_a->wf + 1))[3] = be2me_32 (ra4p->coded_frame_size); ((short *)(sh_a->wf + 1))[4] = codecdata_length; memcpy(((char *)(sh_a->wf + 1)) + 10, src, codecdata_length); track->realmedia = 1; } else if (!strcmp(track->codec_id, MKV_A_FLAC) || (track->a_formattag == 0xf1ac)) { unsigned char *ptr; int size; free(sh_a->wf); sh_a->wf = NULL; if (track->a_formattag == mmioFOURCC('f', 'L', 'a', 'C')) { ptr = (unsigned char *)track->private_data; size = track->private_size; } else { sh_a->format = mmioFOURCC('f', 'L', 'a', 'C'); ptr = (unsigned char *) track->private_data + sizeof (WAVEFORMATEX); size = track->private_size - sizeof (WAVEFORMATEX); } if (size < 4 || ptr[0] != 'f' || ptr[1] != 'L' || ptr[2] != 'a' || ptr[3] != 'C') { dp = new_demux_packet (4); memcpy (dp->buffer, "fLaC", 4); } else { dp = new_demux_packet (size); memcpy (dp->buffer, ptr, size); } dp->pts = 0; dp->flags = 0; ds_add_packet (demuxer->audio, dp); } else if (!track->ms_compat || (track->private_size < sizeof(WAVEFORMATEX))) { free_sh_audio (sh_a); return 1; } return 0; } static int demux_mkv_open_sub (demuxer_t *demuxer, mkv_track_t *track) { if (track->subtitle_type != MATROSKA_SUBTYPE_UNKNOWN) { if (track->subtitle_type == MATROSKA_SUBTYPE_VOBSUB) { int m, size = track->private_size; uint8_t *buffer; m = demux_mkv_decode (track,track->private_data,&buffer,&size,2); if (buffer && m) { free (track->private_data); track->private_data = buffer; } } } else { mp_msg (MSGT_DEMUX, MSGL_ERR, "[mkv] Subtitle type '%s' is not " "supported.\n", track->codec_id); return 1; } return 0; } void demux_mkv_seek (demuxer_t *demuxer, float rel_seek_secs, int flags); int demux_mkv_open (demuxer_t *demuxer) { stream_t *s = demuxer->stream; mkv_demuxer_t *mkv_d; mkv_track_t *track; int i, version, cont = 0; char *str; #ifdef USE_ICONV subcp_open(); #endif stream_seek(s, s->start_pos); str = ebml_read_header (s, &version); if (str == NULL || strcmp (str, "matroska") || version > 1) { mp_msg (MSGT_DEMUX, MSGL_DBG2, "[mkv] no head found\n"); return 0; } free (str); mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] Found the head...\n"); if (ebml_read_id (s, NULL) != MATROSKA_ID_SEGMENT) { mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] but no segment :(\n"); return 0; } ebml_read_length (s, NULL); /* return bytes number until EOF */ mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] + a segment...\n"); mkv_d = (mkv_demuxer_t *) malloc (sizeof (mkv_demuxer_t)); memset (mkv_d, 0, sizeof(mkv_demuxer_t)); demuxer->priv = mkv_d; mkv_d->tc_scale = 1000000; mkv_d->segment_start = stream_tell (s); mkv_d->parsed_cues = (off_t *) malloc (sizeof (off_t)); mkv_d->parsed_seekhead = (off_t *) malloc (sizeof (off_t)); for (i=0; i < SUB_MAX_TEXT; i++) mkv_d->subs.text[i] = (char *) malloc (256); while (!cont) { switch (ebml_read_id (s, NULL)) { case MATROSKA_ID_INFO: mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] |+ segment information...\n"); cont = demux_mkv_read_info (demuxer); break; case MATROSKA_ID_TRACKS: mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] |+ segment tracks...\n"); cont = demux_mkv_read_tracks (demuxer); break; case MATROSKA_ID_CUES: cont = demux_mkv_read_cues (demuxer); break; case MATROSKA_ID_TAGS: cont = demux_mkv_read_tags (demuxer); break; case MATROSKA_ID_SEEKHEAD: cont = demux_mkv_read_seekhead (demuxer); break; case MATROSKA_ID_CHAPTERS: cont = demux_mkv_read_chapters (demuxer); break; case MATROSKA_ID_CLUSTER: { int p, l; mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] |+ found cluster, headers are " "parsed completely :)\n"); /* get the first cluster timecode */ p = stream_tell(s); l = ebml_read_length (s, NULL); while (ebml_read_id (s, NULL) != MATROSKA_ID_CLUSTERTIMECODE) { ebml_read_skip (s, NULL); if (stream_tell (s) >= p + l) break; } if (stream_tell (s) < p + l) { uint64_t num = ebml_read_uint (s, NULL); if (num == EBML_UINT_INVALID) return 0; mkv_d->first_tc = num * mkv_d->tc_scale / 1000000.0; mkv_d->has_first_tc = 1; } stream_seek (s, p - 4); cont = 1; break; } default: cont = 1; case MATROSKA_ID_ATTACHMENTS: case EBML_ID_VOID: ebml_read_skip (s, NULL); break; } } display_tracks (mkv_d); /* select video track */ track = NULL; if (demuxer->video->id == -1) /* automatically select a video track */ { /* search for a video track that has the 'default' flag set */ for (i=0; inum_tracks; i++) if (mkv_d->tracks[i]->type == MATROSKA_TRACK_VIDEO && mkv_d->tracks[i]->default_track) { track = mkv_d->tracks[i]; break; } if (track == NULL) /* no track has the 'default' flag set */ /* let's take the first video track */ for (i=0; inum_tracks; i++) if (mkv_d->tracks[i]->type == MATROSKA_TRACK_VIDEO) { track = mkv_d->tracks[i]; break; } } else if (demuxer->video->id != -2) /* -2 = no video at all */ track = demux_mkv_find_track_by_num (mkv_d, demuxer->video->id, MATROSKA_TRACK_VIDEO); if (track && !demux_mkv_open_video (demuxer, track)) { mp_msg (MSGT_DEMUX, MSGL_INFO, "[mkv] Will play video track %u\n", track->tnum); demuxer->video->id = track->tnum; demuxer->video->sh = demuxer->v_streams[track->tnum]; } else { mp_msg (MSGT_DEMUX, MSGL_INFO, "[mkv] No video track found/wanted.\n"); demuxer->video->id = -2; } /* select audio track */ track = NULL; if (demuxer->audio->id == -1) /* automatically select an audio track */ { /* check if the user specified an audio language */ if (audio_lang != NULL) track = demux_mkv_find_track_by_language(mkv_d, audio_lang, MATROSKA_TRACK_AUDIO); if (track == NULL) /* no audio language specified, or language not found */ /* search for an audio track that has the 'default' flag set */ for (i=0; i < mkv_d->num_tracks; i++) if (mkv_d->tracks[i]->type == MATROSKA_TRACK_AUDIO && mkv_d->tracks[i]->default_track) { track = mkv_d->tracks[i]; break; } if (track == NULL) /* no track has the 'default' flag set */ /* let's take the first audio track */ for (i=0; i < mkv_d->num_tracks; i++) if (mkv_d->tracks[i]->type == MATROSKA_TRACK_AUDIO) { track = mkv_d->tracks[i]; break; } } else if (demuxer->audio->id != -2) /* -2 = no audio at all */ track = demux_mkv_find_track_by_num (mkv_d, demuxer->audio->id, MATROSKA_TRACK_AUDIO); if (track && !demux_mkv_open_audio (demuxer, track)) { mp_msg (MSGT_DEMUX, MSGL_INFO, "[mkv] Will play audio track %u\n", track->tnum); demuxer->audio->id = track->tnum; demuxer->audio->sh = demuxer->a_streams[track->tnum]; } else { mp_msg (MSGT_DEMUX, MSGL_INFO, "[mkv] No audio track found/wanted.\n"); demuxer->audio->id = -2; } /* DO NOT automatically select a subtitle track and behave like DVD */ /* playback: only show subtitles if the user explicitely wants them. */ track = NULL; if (demuxer->sub->id >= 0) track = demux_mkv_find_track_by_num (mkv_d, demuxer->sub->id, MATROSKA_TRACK_SUBTITLE); else if (dvdsub_lang != NULL) track = demux_mkv_find_track_by_language (mkv_d, dvdsub_lang, MATROSKA_TRACK_SUBTITLE); if (track && !demux_mkv_open_sub (demuxer, track)) { mp_msg (MSGT_DEMUX, MSGL_INFO, "[mkv] Will display subtitle track %u\n", track->tnum); demuxer->sub->id = track->tnum; } else demuxer->sub->id = -2; if (mkv_d->chapters) { for (i=0; i < (int)mkv_d->num_chapters; i++) { mkv_d->chapters[i].start -= mkv_d->first_tc; mkv_d->chapters[i].end -= mkv_d->first_tc; } if (dvd_last_chapter > 0 && dvd_last_chapter <= mkv_d->num_chapters) { if (mkv_d->chapters[dvd_last_chapter-1].end != 0) mkv_d->stop_timecode = mkv_d->chapters[dvd_last_chapter-1].end; else if (dvd_last_chapter + 1 <= mkv_d->num_chapters) mkv_d->stop_timecode = mkv_d->chapters[dvd_last_chapter].start; } } if (s->end_pos == 0 || (mkv_d->indexes == NULL && index_mode < 0)) demuxer->seekable = 0; else { demuxer->movi_start = s->start_pos; demuxer->movi_end = s->end_pos; demuxer->seekable = 1; if (mkv_d->chapters && dvd_chapter>1 && dvd_chapter<=mkv_d->num_chapters) { if (!mkv_d->has_first_tc) { mkv_d->first_tc = 0; mkv_d->has_first_tc = 1; } demux_mkv_seek (demuxer, mkv_d->chapters[dvd_chapter-1].start/1000.0, 1); } } return 1; } void demux_close_mkv (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; if (mkv_d) { int i; if (mkv_d->tracks) { for (i=0; inum_tracks; i++) { if (mkv_d->tracks[i]->codec_id) free (mkv_d->tracks[i]->codec_id); if (mkv_d->tracks[i]->language) free (mkv_d->tracks[i]->language); if (mkv_d->tracks[i]->private_data) free (mkv_d->tracks[i]->private_data); } for (i=0; i < SUB_MAX_TEXT; i++) if (mkv_d->subs.text[i]) free (mkv_d->subs.text[i]); free (mkv_d->tracks); } if (mkv_d->indexes) free (mkv_d->indexes); if (mkv_d->cluster_positions) free (mkv_d->cluster_positions); if (mkv_d->chapters) free (mkv_d->chapters); if (mkv_d->parsed_cues) free (mkv_d->parsed_cues); if (mkv_d->parsed_seekhead) free (mkv_d->parsed_seekhead); free (mkv_d); } } static int demux_mkv_read_block_lacing (uint8_t *buffer, uint64_t *size, uint8_t *laces, uint32_t **all_lace_sizes) { uint32_t total = 0, *lace_size; uint8_t flags; int i; *all_lace_sizes = NULL; /* lacing flags */ flags = *buffer++; (*size)--; switch ((flags & 0x06) >> 1) { case 0: /* no lacing */ *laces = 1; lace_size = (uint32_t *)calloc(*laces, sizeof(uint32_t)); lace_size[0] = *size; break; case 1: /* xiph lacing */ case 2: /* fixed-size lacing */ case 3: /* EBML lacing */ *laces = *buffer++; (*size)--; (*laces)++; lace_size = (uint32_t *)calloc(*laces, sizeof(uint32_t)); switch ((flags & 0x06) >> 1) { case 1: /* xiph lacing */ for (i=0; i < *laces-1; i++) { lace_size[i] = 0; do { lace_size[i] += *buffer; (*size)--; } while (*buffer++ == 0xFF); total += lace_size[i]; } lace_size[i] = *size - total; break; case 2: /* fixed-size lacing */ for (i=0; i < *laces; i++) lace_size[i] = *size / *laces; break; case 3: /* EBML lacing */ { int l; uint64_t num = ebml_read_vlen_uint (buffer, &l); if (num == EBML_UINT_INVALID) { free(lace_size); return 1; } buffer += l; *size -= l; total = lace_size[0] = num; for (i=1; i < *laces-1; i++) { int64_t snum; snum = ebml_read_vlen_int (buffer, &l); if (snum == EBML_INT_INVALID) { free(lace_size); return 1; } buffer += l; *size -= l; lace_size[i] = lace_size[i-1] + snum; total += lace_size[i]; } lace_size[i] = *size - total; break; } } break; } *all_lace_sizes = lace_size; return 0; } static void handle_subtitles(demuxer_t *demuxer, mkv_track_t *track, char *block, int64_t size, uint64_t block_duration, uint64_t timecode) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; char *ptr1, *ptr2; int state, i; if (block_duration == 0) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: No BlockDuration " "for subtitle track found.\n"); return; } ptr1 = block; while (ptr1 - block <= size && (*ptr1 == '\n' || *ptr1 == '\r')) ptr1++; ptr2 = block + size - 1; while (ptr2 >= block && (*ptr2 == '\n' || *ptr2 == '\r')) { *ptr2 = 0; ptr2--; } if (mkv_d->subs.lines > SUB_MAX_TEXT - 2) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many sublines " "to render, skipping\n"); return; } ptr2 = mkv_d->subs.text[mkv_d->subs.lines]; state = 0; if (track->subtitle_type == MATROSKA_SUBTYPE_SSA) { /* Find text section. */ for (i=0; i < 8 && *ptr1 != '\0'; ptr1++) if (*ptr1 == ',') i++; if (*ptr1 == '\0') /* Broken line? */ return; /* Load text. */ while (ptr1 - block < size) { if (*ptr1 == '{') state = 1; else if (*ptr1 == '}' && state == 1) state = 2; if (state == 0) { *ptr2++ = *ptr1; if (ptr2 - mkv_d->subs.text[mkv_d->subs.lines] >= 255) break; } ptr1++; /* Newline */ if (*ptr1 == '\\' && ptr1+1-block < size && (*(ptr1+1)|0x20) == 'n') { mkv_d->clear_subs_at[mkv_d->subs.lines++] = timecode + block_duration; *ptr2 = '\0'; if (mkv_d->subs.lines >= SUB_MAX_TEXT) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many " "sublines to render, skipping\n"); return; } ptr2 = mkv_d->subs.text[mkv_d->subs.lines]; ptr1 += 2; } if (state == 2) state = 0; } *ptr2 = '\0'; } else { while (ptr1 - block != size) { if (*ptr1 == '\n' || *ptr1 == '\r') { if (state == 0) /* normal char --> newline */ { *ptr2 = '\0'; mkv_d->clear_subs_at[mkv_d->subs.lines++] = timecode + block_duration; if (mkv_d->subs.lines >= SUB_MAX_TEXT) { mp_msg (MSGT_DEMUX, MSGL_WARN, "[mkv] Warning: too many " "sublines to render, skipping\n"); return; } ptr2 = mkv_d->subs.text[mkv_d->subs.lines]; state = 1; } } else if (*ptr1 == '<') /* skip HTML tags */ state = 2; else if (*ptr1 == '>') state = 0; else if (state != 2) /* normal character */ { state = 0; if ((ptr2 - mkv_d->subs.text[mkv_d->subs.lines]) < 255) *ptr2++ = *ptr1; } ptr1++; } *ptr2 = '\0'; } mkv_d->clear_subs_at[mkv_d->subs.lines++] = timecode + block_duration; #ifdef USE_ICONV subcp_recode1 (&mkv_d->subs); #endif vo_sub = &mkv_d->subs; vo_osd_changed (OSDTYPE_SUBTITLE); } static void clear_subtitles(demuxer_t *demuxer, uint64_t timecode, int clear_all) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; int i, lines_cut = 0; char *tmp; /* Clear all? */ if (clear_all) { lines_cut = mkv_d->subs.lines; mkv_d->subs.lines = 0; if (lines_cut) { vo_sub = &mkv_d->subs; vo_osd_changed (OSDTYPE_SUBTITLE); } return; } /* Clear the subtitles if they're obsolete now. */ for (i=0; i < mkv_d->subs.lines; i++) { if (mkv_d->clear_subs_at[i] <= timecode) { tmp = mkv_d->subs.text[i]; memmove (mkv_d->subs.text+i, mkv_d->subs.text+i+1, (mkv_d->subs.lines-i-1) * sizeof (*mkv_d->subs.text)); memmove (mkv_d->clear_subs_at+i, mkv_d->clear_subs_at+i+1, (mkv_d->subs.lines-i-1) * sizeof (*mkv_d->clear_subs_at)); mkv_d->subs.text[--mkv_d->subs.lines] = tmp; i--; lines_cut = 1; } } if (lines_cut) { vo_sub = &mkv_d->subs; vo_osd_changed (OSDTYPE_SUBTITLE); } } // Taken from demux_real.c. Thanks to the original developpers :) #define SKIP_BITS(n) buffer <<= n #define SHOW_BITS(n) ((buffer) >> (32 - (n))) static float real_fix_timestamp(mkv_track_t *track, unsigned char *s, int timestamp) { float v_pts; uint32_t buffer = (s[0] << 24) + (s[1] << 16) + (s[2] << 8) + s[3]; int kf = timestamp; int pict_type; int orig_kf; if (!strcmp(track->codec_id, MKV_V_REALV30) || !strcmp(track->codec_id, MKV_V_REALV40)) { if (!strcmp(track->codec_id, MKV_V_REALV30)) { SKIP_BITS(3); pict_type = SHOW_BITS(2); SKIP_BITS(2 + 7); }else{ SKIP_BITS(1); pict_type = SHOW_BITS(2); SKIP_BITS(2 + 7 + 3); } kf = SHOW_BITS(13); // kf= 2*SHOW_BITS(12); orig_kf = kf; if (pict_type <= 1) { // I frame, sync timestamps: track->rv_kf_base = timestamp - kf; mp_msg(MSGT_DEMUX, MSGL_V, "\nTS: base=%08X\n", track->rv_kf_base); kf = timestamp; } else { // P/B frame, merge timestamps: int tmp = timestamp - track->rv_kf_base; kf |= tmp & (~0x1fff); // combine with packet timestamp if (kf < (tmp - 4096)) // workaround wrap-around problems kf += 8192; else if (kf > (tmp + 4096)) kf -= 8192; kf += track->rv_kf_base; } if (pict_type != 3) { // P || I frame -> swap timestamps int tmp = kf; kf = track->rv_kf_pts; track->rv_kf_pts = tmp; } mp_msg(MSGT_DEMUX, MSGL_V, "\nTS: %08X -> %08X (%04X) %d %02X %02X %02X " "%02X %5d\n", timestamp, kf, orig_kf, pict_type, s[0], s[1], s[2], s[3], kf - (int)(1000.0 * track->rv_pts)); } v_pts = kf * 0.001f; track->rv_pts = v_pts; return v_pts; } static void handle_realvideo (demuxer_t *demuxer, mkv_track_t *track, uint8_t *buffer, uint32_t size, int block_bref) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; demux_packet_t *dp; dp_hdr_t *hdr; uint8_t chunks; int isize; chunks = *buffer++; isize = --size - (chunks+1)*8; dp = new_demux_packet (sizeof (*hdr) + size); memcpy (dp->buffer + sizeof(*hdr), buffer + (chunks+1)*8, isize); memcpy (dp->buffer + sizeof(*hdr) + isize, buffer, (chunks+1)*8); hdr = (dp_hdr_t *) dp->buffer; hdr->len = isize; hdr->chunks = chunks; hdr->timestamp = mkv_d->last_pts * 1000; hdr->chunktab = sizeof(*hdr) + isize; dp->len = sizeof(*hdr) + size; if (mkv_d->v_skip_to_keyframe) { dp->pts = mkv_d->last_pts; track->rv_kf_base = 0; track->rv_kf_pts = hdr->timestamp; } else dp->pts = real_fix_timestamp (track, dp->buffer + sizeof(*hdr), hdr->timestamp); dp->pos = demuxer->filepos; dp->flags = block_bref ? 0 : 0x10; ds_add_packet(demuxer->video, dp); } static void handle_realaudio (demuxer_t *demuxer, mkv_track_t *track, uint8_t *buffer, uint32_t size, int block_bref) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; demux_packet_t *dp = new_demux_packet (size); memcpy (dp->buffer, buffer, size); if (track->ra_pts == mkv_d->last_pts && !mkv_d->a_skip_to_keyframe) dp->pts = 0; else dp->pts = mkv_d->last_pts; track->ra_pts = mkv_d->last_pts; dp->pos = demuxer->filepos; dp->flags = block_bref ? 0 : 0x10; ds_add_packet (demuxer->audio, dp); } static int handle_block (demuxer_t *demuxer, uint8_t *block, uint64_t length, uint64_t block_duration, int64_t block_bref) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; mkv_track_t *track = NULL; demux_stream_t *ds = NULL; uint64_t old_length; int64_t tc; uint32_t *lace_size; uint8_t laces; int i, num, tmp, use_this_block = 1; float current_pts; int16_t time; /* first byte(s): track num */ num = ebml_read_vlen_uint (block, &tmp); block += tmp; /* time (relative to cluster time) */ time = be2me_16 (* (int16_t *) block); block += 2; length -= tmp + 2; old_length = length; if (demux_mkv_read_block_lacing (block, &length, &laces, &lace_size)) return 0; block += old_length - length; tc = ((time*mkv_d->tc_scale+mkv_d->cluster_tc) /1000000.0 - mkv_d->first_tc); if (tc < 0) tc = 0; if (mkv_d->stop_timecode > 0 && tc > mkv_d->stop_timecode) { free(lace_size); return -1; } current_pts = tc / 1000.0; clear_subtitles(demuxer, tc, 0); for (i=0; inum_tracks; i++) if (mkv_d->tracks[i]->tnum == num) track = mkv_d->tracks[i]; if (num == demuxer->audio->id) { ds = demuxer->audio; if (mkv_d->a_skip_to_keyframe && block_bref != 0) use_this_block = 0; else if (mkv_d->v_skip_to_keyframe) use_this_block = 0; if (track->fix_i_bps && use_this_block) { sh_audio_t *sh = (sh_audio_t *) ds->sh; if (block_duration != 0) { sh->i_bps = length * 1000 / block_duration; track->fix_i_bps = 0; } else if (track->qt_last_a_pts == 0.0) track->qt_last_a_pts = current_pts; else if(track->qt_last_a_pts != current_pts) { sh->i_bps = length / (current_pts - track->qt_last_a_pts); track->fix_i_bps = 0; } } } else if (tc < mkv_d->skip_to_timecode) use_this_block = 0; else if (num == demuxer->video->id) { ds = demuxer->video; if (mkv_d->v_skip_to_keyframe && block_bref != 0) use_this_block = 0; } else if (num == demuxer->sub->id) { ds = demuxer->sub; if (track->subtitle_type != MATROSKA_SUBTYPE_VOBSUB) { if (!mkv_d->v_skip_to_keyframe) handle_subtitles (demuxer, track, block, length, block_duration, tc); use_this_block = 0; } } else use_this_block = 0; if (use_this_block) { mkv_d->last_pts = ds->pts = current_pts; mkv_d->last_filepos = demuxer->filepos; for (i=0; i < laces; i++) { if (ds == demuxer->video && track->realmedia) handle_realvideo (demuxer, track, block, lace_size[i], block_bref); else if (ds == demuxer->audio && track->realmedia) handle_realaudio (demuxer, track, block, lace_size[i], block_bref); else { int modified, size = lace_size[i]; demux_packet_t *dp; uint8_t *buffer; modified = demux_mkv_decode (track, block, &buffer, &size, 1); if (buffer) { dp = new_demux_packet (size); memcpy (dp->buffer, buffer, size); if (modified) free (buffer); dp->flags = block_bref == 0 ? 1 : 0; dp->pts = mkv_d->last_pts + i * track->default_duration; ds_add_packet (ds, dp); } } block += lace_size[i]; } if (ds == demuxer->video) { mkv_d->v_skip_to_keyframe = 0; mkv_d->skip_to_timecode = 0; } else if (ds == demuxer->audio) mkv_d->a_skip_to_keyframe = 0; free(lace_size); return 1; } free(lace_size); return 0; } int demux_mkv_fill_buffer (demuxer_t *demuxer) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t l; int il, tmp; while (1) { while (mkv_d->cluster_size > 0) { uint64_t block_duration = 0, block_length = 0; int64_t block_bref = 0; uint8_t *block = NULL; while (mkv_d->blockgroup_size > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_BLOCKDURATION: { block_duration = ebml_read_uint (s, &l); if (block_duration == EBML_UINT_INVALID) return 0; break; } case MATROSKA_ID_BLOCK: block_length = ebml_read_length (s, &tmp); block = (uint8_t *) malloc (block_length); demuxer->filepos = stream_tell (s); if (stream_read (s,block,block_length) != (int) block_length) return 0; l = tmp + block_length; break; case MATROSKA_ID_REFERENCEBLOCK: { int64_t num = ebml_read_int (s, &l); if (num == EBML_INT_INVALID) return 0; if (num < 0) block_bref = num; break; } case EBML_ID_INVALID: return 0; default: ebml_read_skip (s, &l); break; } mkv_d->blockgroup_size -= l + il; mkv_d->cluster_size -= l + il; } if (block) { int res = handle_block (demuxer, block, block_length, block_duration, block_bref); free (block); if (res < 0) return 0; if (res) return 1; } if (mkv_d->cluster_size > 0) { switch (ebml_read_id (s, &il)) { case MATROSKA_ID_CLUSTERTIMECODE: { uint64_t num = ebml_read_uint (s, &l); if (num == EBML_UINT_INVALID) return 0; if (!mkv_d->has_first_tc) { mkv_d->first_tc = num * mkv_d->tc_scale / 1000000.0; mkv_d->has_first_tc = 1; } mkv_d->cluster_tc = num * mkv_d->tc_scale; break; } case MATROSKA_ID_BLOCKGROUP: mkv_d->blockgroup_size = ebml_read_length (s, &tmp); l = tmp; break; case EBML_ID_INVALID: return 0; default: ebml_read_skip (s, &l); break; } mkv_d->cluster_size -= l + il; } } if (ebml_read_id (s, &il) != MATROSKA_ID_CLUSTER) return 0; add_cluster_position(mkv_d, stream_tell(s)-il); mkv_d->cluster_size = ebml_read_length (s, NULL); } return 0; } void demux_mkv_seek (demuxer_t *demuxer, float rel_seek_secs, int flags) { if (!(flags & 2)) /* time in secs */ { void resync_audio_stream(sh_audio_t *sh_audio); mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; int64_t target_timecode = 0, diff, min_diff=0xFFFFFFFL; int i; if (!(flags & 1)) /* relative seek */ target_timecode = (int64_t) (mkv_d->last_pts * 1000.0); target_timecode += (int64_t)(rel_seek_secs * 1000.0); if (target_timecode < 0) target_timecode = 0; if (mkv_d->indexes == NULL) /* no index was found */ { uint64_t target_filepos, cluster_pos, max_pos; target_filepos = (uint64_t) (target_timecode * mkv_d->last_filepos / (mkv_d->last_pts * 1000.0)); max_pos = mkv_d->cluster_positions[mkv_d->num_cluster_pos-1]; if (target_filepos > max_pos) { if ((off_t) max_pos > stream_tell (s)) stream_seek (s, max_pos); else stream_seek (s, stream_tell (s) + mkv_d->cluster_size); /* parse all the clusters upto target_filepos */ while (!s->eof && stream_tell(s) < (off_t) target_filepos) { switch (ebml_read_id (s, &i)) { case MATROSKA_ID_CLUSTER: add_cluster_position(mkv_d, (uint64_t) stream_tell(s)-i); break; case MATROSKA_ID_CUES: demux_mkv_read_cues (demuxer); break; } ebml_read_skip (s, NULL); } if (s->eof) stream_reset(s); } if (mkv_d->indexes == NULL) { cluster_pos = mkv_d->cluster_positions[0]; /* Let's find the nearest cluster */ for (i=0; i < mkv_d->num_cluster_pos; i++) { diff = mkv_d->cluster_positions[i] - target_filepos; if (rel_seek_secs < 0 && diff < 0 && -diff < min_diff) { cluster_pos = mkv_d->cluster_positions[i]; min_diff = -diff; } else if (rel_seek_secs > 0 && (diff < 0 ? -1 * diff : diff) < min_diff) { cluster_pos = mkv_d->cluster_positions[i]; min_diff = diff < 0 ? -1 * diff : diff; } } mkv_d->cluster_size = mkv_d->blockgroup_size = 0; stream_seek (s, cluster_pos); } } else { mkv_index_t *index = NULL; /* let's find the entry in the indexes with the smallest */ /* difference to the wanted timecode. */ for (i=0; i < mkv_d->num_indexes; i++) if (mkv_d->indexes[i].tnum == demuxer->video->id) { diff = target_timecode - (int64_t) mkv_d->indexes[i].timecode; if ((flags & 1 || target_timecode <= mkv_d->last_pts*1000) && diff >= 0 && diff < min_diff) { min_diff = diff; index = mkv_d->indexes + i; } else if (target_timecode > mkv_d->last_pts*1000 && diff < 0 && -diff < min_diff) { min_diff = -diff; index = mkv_d->indexes + i; } } if (index) /* We've found an entry. */ { mkv_d->cluster_size = mkv_d->blockgroup_size = 0; stream_seek (s, index->filepos); } } if (demuxer->video->id >= 0) mkv_d->v_skip_to_keyframe = 1; if (rel_seek_secs > 0.0) mkv_d->skip_to_timecode = target_timecode; mkv_d->a_skip_to_keyframe = 1; /* Clear subtitles. */ if (target_timecode <= mkv_d->last_pts * 1000) clear_subtitles(demuxer, 0, 1); demux_mkv_fill_buffer(demuxer); if(demuxer->audio->sh != NULL) resync_audio_stream((sh_audio_t *) demuxer->audio->sh); } else if ((demuxer->movi_end <= 0) || !(flags & 1)) mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] seek unsupported flags\n"); else { void resync_audio_stream(sh_audio_t *sh_audio); mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; stream_t *s = demuxer->stream; uint64_t target_filepos; mkv_index_t *index = NULL; int i; if (mkv_d->indexes == NULL) /* no index was found */ { /* I'm lazy... */ mp_msg (MSGT_DEMUX, MSGL_V, "[mkv] seek unsupported flags\n"); return; } target_filepos = (uint64_t)(demuxer->movi_end * rel_seek_secs); for (i=0; i < mkv_d->num_indexes; i++) if (mkv_d->indexes[i].tnum == demuxer->video->id) if ((index == NULL) || ((mkv_d->indexes[i].filepos >= target_filepos) && ((index->filepos < target_filepos) || (mkv_d->indexes[i].filepos < index->filepos)))) index = &mkv_d->indexes[i]; if (!index) return; mkv_d->cluster_size = mkv_d->blockgroup_size = 0; stream_seek (s, index->filepos); if (demuxer->video->id >= 0) mkv_d->v_skip_to_keyframe = 1; mkv_d->skip_to_timecode = index->timecode; mkv_d->a_skip_to_keyframe = 1; /* Clear subtitles. */ if (index->timecode <= mkv_d->last_pts * 1000) clear_subtitles(demuxer, 0, 1); demux_mkv_fill_buffer(demuxer); if(demuxer->audio->sh != NULL) resync_audio_stream((sh_audio_t *) demuxer->audio->sh); } } int demux_mkv_control (demuxer_t *demuxer, int cmd, void *arg) { mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv; switch (cmd) { case DEMUXER_CTRL_GET_TIME_LENGTH: if (mkv_d->duration == 0) return DEMUXER_CTRL_DONTKNOW; *((unsigned long *)arg) = (unsigned long)mkv_d->duration; return DEMUXER_CTRL_OK; case DEMUXER_CTRL_GET_PERCENT_POS: if (mkv_d->duration == 0) { if (demuxer->movi_start == demuxer->movi_end) return DEMUXER_CTRL_DONTKNOW; *((int *)arg) = (int)((demuxer->filepos - demuxer->movi_start) / ((demuxer->movi_end-demuxer->movi_start)/100)); return DEMUXER_CTRL_OK; } *((int *) arg) = (int) (100 * mkv_d->last_pts / mkv_d->duration); return DEMUXER_CTRL_OK; default: return DEMUXER_CTRL_NOTIMPL; } } #endif /* HAVE_MATROSKA */