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author | Aurelien Jacobs <aurel@gnuage.org> | 2007-03-01 23:50:31 +0000 |
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committer | Aurelien Jacobs <aurel@gnuage.org> | 2007-03-01 23:50:31 +0000 |
commit | de7779b5fd0207bc6c68f41cf02393196a6ca754 (patch) | |
tree | 579ddf31fa48d91f02442b7042da94517c813433 /libavformat/matroska.c | |
parent | 1afdcdf1fc40665a67b1192b867d58ebf79cc074 (diff) | |
download | ffmpeg-streaming-de7779b5fd0207bc6c68f41cf02393196a6ca754.zip ffmpeg-streaming-de7779b5fd0207bc6c68f41cf02393196a6ca754.tar.gz |
cosmetics: fix indentation of the new matroska_parse_block() function
Originally committed as revision 8179 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/matroska.c')
-rw-r--r-- | libavformat/matroska.c | 321 |
1 files changed, 159 insertions, 162 deletions
diff --git a/libavformat/matroska.c b/libavformat/matroska.c index eafdd7b..35cb4ce 100644 --- a/libavformat/matroska.c +++ b/libavformat/matroska.c @@ -2379,184 +2379,181 @@ static int matroska_parse_block(MatroskaDemuxContext *matroska, uint64_t cluster_time, int is_keyframe, int *ptrack, AVPacket **ppkt) { - int res; - uint32_t id; - int track; - AVPacket *pkt; - uint8_t *data, *origdata; - int size; - int16_t block_time; - uint32_t *lace_size = NULL; - int n, flags, laces = 0; - uint64_t num; - int64_t pos= url_ftell(&matroska->ctx->pb); - - if ((res = ebml_read_binary(matroska, &id, &data, &size)) < 0) - return res; - origdata = data; + int res; + uint32_t id; + int track; + AVPacket *pkt; + uint8_t *data, *origdata; + int size; + int16_t block_time; + uint32_t *lace_size = NULL; + int n, flags, laces = 0; + uint64_t num; + int64_t pos= url_ftell(&matroska->ctx->pb); + + if ((res = ebml_read_binary(matroska, &id, &data, &size)) < 0) + return res; + origdata = data; - /* first byte(s): tracknum */ - if ((n = matroska_ebmlnum_uint(data, size, &num)) < 0) { - av_log(matroska->ctx, AV_LOG_ERROR, - "EBML block data error\n"); - av_free(origdata); - return res; - } - data += n; - size -= n; + /* first byte(s): tracknum */ + if ((n = matroska_ebmlnum_uint(data, size, &num)) < 0) { + av_log(matroska->ctx, AV_LOG_ERROR, "EBML block data error\n"); + av_free(origdata); + return res; + } + data += n; + size -= n; - /* fetch track from num */ - track = matroska_find_track_by_num(matroska, num); - if (ptrack) *ptrack = track; - if (size <= 3 || track < 0 || track >= matroska->num_tracks) { - av_log(matroska->ctx, AV_LOG_INFO, - "Invalid stream %d or size %u\n", track, size); - av_free(origdata); - return res; - } - if(matroska->ctx->streams[ matroska->tracks[track]->stream_index ]->discard >= AVDISCARD_ALL){ - av_free(origdata); - return res; - } + /* fetch track from num */ + track = matroska_find_track_by_num(matroska, num); + if (ptrack) *ptrack = track; + if (size <= 3 || track < 0 || track >= matroska->num_tracks) { + av_log(matroska->ctx, AV_LOG_INFO, + "Invalid stream %d or size %u\n", track, size); + av_free(origdata); + return res; + } + if(matroska->ctx->streams[ matroska->tracks[track]->stream_index ]->discard >= AVDISCARD_ALL){ + av_free(origdata); + return res; + } - /* block_time (relative to cluster time) */ - block_time = (data[0] << 8) | data[1]; - data += 2; - size -= 2; - flags = *data; - data += 1; - size -= 1; - switch ((flags & 0x06) >> 1) { - case 0x0: /* no lacing */ - laces = 1; - lace_size = av_mallocz(sizeof(int)); - lace_size[0] = size; - break; + /* block_time (relative to cluster time) */ + block_time = (data[0] << 8) | data[1]; + data += 2; + size -= 2; + flags = *data; + data += 1; + size -= 1; + switch ((flags & 0x06) >> 1) { + case 0x0: /* no lacing */ + laces = 1; + lace_size = av_mallocz(sizeof(int)); + lace_size[0] = size; + break; - case 0x1: /* xiph lacing */ - case 0x2: /* fixed-size lacing */ - case 0x3: /* EBML lacing */ - if (size == 0) { - res = -1; - break; - } - laces = (*data) + 1; - data += 1; - size -= 1; - lace_size = av_mallocz(laces * sizeof(int)); - - switch ((flags & 0x06) >> 1) { - case 0x1: /* xiph lacing */ { - uint8_t temp; - uint32_t total = 0; - for (n = 0; res == 0 && n < laces - 1; n++) { - while (1) { - if (size == 0) { - res = -1; - break; - } - temp = *data; - lace_size[n] += temp; - data += 1; - size -= 1; - if (temp != 0xff) - break; - } - total += lace_size[n]; - } - lace_size[n] = size - total; + case 0x1: /* xiph lacing */ + case 0x2: /* fixed-size lacing */ + case 0x3: /* EBML lacing */ + if (size == 0) { + res = -1; + break; + } + laces = (*data) + 1; + data += 1; + size -= 1; + lace_size = av_mallocz(laces * sizeof(int)); + + switch ((flags & 0x06) >> 1) { + case 0x1: /* xiph lacing */ { + uint8_t temp; + uint32_t total = 0; + for (n = 0; res == 0 && n < laces - 1; n++) { + while (1) { + if (size == 0) { + res = -1; break; } - - case 0x2: /* fixed-size lacing */ - for (n = 0; n < laces; n++) - lace_size[n] = size / laces; + temp = *data; + lace_size[n] += temp; + data += 1; + size -= 1; + if (temp != 0xff) break; - - case 0x3: /* EBML lacing */ { - uint32_t total; - n = matroska_ebmlnum_uint(data, size, &num); - if (n < 0) { - av_log(matroska->ctx, AV_LOG_INFO, - "EBML block data error\n"); - break; - } - data += n; - size -= n; - total = lace_size[0] = num; - for (n = 1; res == 0 && n < laces - 1; n++) { - int64_t snum; - int r; - r = matroska_ebmlnum_sint (data, size, - &snum); - if (r < 0) { - av_log(matroska->ctx, AV_LOG_INFO, - "EBML block data error\n"); - break; - } - data += r; - size -= r; - lace_size[n] = lace_size[n - 1] + snum; - total += lace_size[n]; - } - lace_size[n] = size - total; - break; - } } - break; + total += lace_size[n]; + } + lace_size[n] = size - total; + break; } - if (res == 0) { - int real_v = matroska->tracks[track]->flags & MATROSKA_TRACK_REAL_V; - for (n = 0; n < laces; n++) { - uint64_t timecode = AV_NOPTS_VALUE; - int slice, slices = 1; + case 0x2: /* fixed-size lacing */ + for (n = 0; n < laces; n++) + lace_size[n] = size / laces; + break; - if (real_v) { - slices = *data++ + 1; - lace_size[n]--; - } - if (cluster_time != (uint64_t)-1 && n == 0) { - if (cluster_time + block_time >= 0) - timecode = (cluster_time + block_time) * matroska->time_scale; + case 0x3: /* EBML lacing */ { + uint32_t total; + n = matroska_ebmlnum_uint(data, size, &num); + if (n < 0) { + av_log(matroska->ctx, AV_LOG_INFO, + "EBML block data error\n"); + break; + } + data += n; + size -= n; + total = lace_size[0] = num; + for (n = 1; res == 0 && n < laces - 1; n++) { + int64_t snum; + int r; + r = matroska_ebmlnum_sint (data, size, &snum); + if (r < 0) { + av_log(matroska->ctx, AV_LOG_INFO, + "EBML block data error\n"); + break; } - /* FIXME: duration */ - - for (slice=0; slice<slices; slice++) { - int slice_size, slice_offset = 0; - if (real_v) - slice_offset = rv_offset(data, slice, slices); - if (slice+1 == slices) - slice_size = lace_size[n] - slice_offset; - else - slice_size = rv_offset(data, slice+1, slices) - slice_offset; - pkt = av_mallocz(sizeof(AVPacket)); - if (ppkt) *ppkt = pkt; - /* XXX: prevent data copy... */ - if (av_new_packet(pkt, slice_size) < 0) { - res = AVERROR_NOMEM; - n = laces-1; - break; - } - memcpy (pkt->data, data+slice_offset, slice_size); - - if (n == 0) - pkt->flags = is_keyframe; - pkt->stream_index = - matroska->tracks[track]->stream_index; + data += r; + size -= r; + lace_size[n] = lace_size[n - 1] + snum; + total += lace_size[n]; + } + lace_size[n] = size - total; + break; + } + } + break; + } - pkt->pts = timecode; - pkt->pos = pos; + if (res == 0) { + int real_v = matroska->tracks[track]->flags & MATROSKA_TRACK_REAL_V; + for (n = 0; n < laces; n++) { + uint64_t timecode = AV_NOPTS_VALUE; + int slice, slices = 1; - matroska_queue_packet(matroska, pkt); - } - data += lace_size[n]; - } + if (real_v) { + slices = *data++ + 1; + lace_size[n]--; + } + if (cluster_time != (uint64_t)-1 && n == 0) { + if (cluster_time + block_time >= 0) + timecode = (cluster_time + block_time) * matroska->time_scale; + } + /* FIXME: duration */ + + for (slice=0; slice<slices; slice++) { + int slice_size, slice_offset = 0; + if (real_v) + slice_offset = rv_offset(data, slice, slices); + if (slice+1 == slices) + slice_size = lace_size[n] - slice_offset; + else + slice_size = rv_offset(data, slice+1, slices) - slice_offset; + pkt = av_mallocz(sizeof(AVPacket)); + if (ppkt) *ppkt = pkt; + /* XXX: prevent data copy... */ + if (av_new_packet(pkt, slice_size) < 0) { + res = AVERROR_NOMEM; + n = laces-1; + break; } + memcpy (pkt->data, data+slice_offset, slice_size); + + if (n == 0) + pkt->flags = is_keyframe; + pkt->stream_index = matroska->tracks[track]->stream_index; - av_free(lace_size); - av_free(origdata); - return res; + pkt->pts = timecode; + pkt->pos = pos; + + matroska_queue_packet(matroska, pkt); + } + data += lace_size[n]; + } + } + + av_free(lace_size); + av_free(origdata); + return res; } static int |