[FFmpeg-cvslog] r24503 - in trunk/libavformat: matroska.c matroskaenc.c
aurel
subversion
Sun Jul 25 23:16:58 CEST 2010
Author: aurel
Date: Sun Jul 25 23:16:58 2010
New Revision: 24503
Log:
matroskaenc: add support for muxing SRT tracks
Modified:
trunk/libavformat/matroska.c
trunk/libavformat/matroskaenc.c
Modified: trunk/libavformat/matroska.c
==============================================================================
--- trunk/libavformat/matroska.c Sun Jul 25 21:36:20 2010 (r24502)
+++ trunk/libavformat/matroska.c Sun Jul 25 23:16:58 2010 (r24503)
@@ -52,6 +52,7 @@ const CodecTags ff_mkv_codec_tags[]={
{"A_WAVPACK4" , CODEC_ID_WAVPACK},
{"S_TEXT/UTF8" , CODEC_ID_TEXT},
+ {"S_TEXT/UTF8" , CODEC_ID_SRT},
{"S_TEXT/ASCII" , CODEC_ID_TEXT},
{"S_TEXT/ASS" , CODEC_ID_SSA},
{"S_TEXT/SSA" , CODEC_ID_SSA},
Modified: trunk/libavformat/matroskaenc.c
==============================================================================
--- trunk/libavformat/matroskaenc.c Sun Jul 25 21:36:20 2010 (r24502)
+++ trunk/libavformat/matroskaenc.c Sun Jul 25 23:16:58 2010 (r24503)
@@ -871,6 +871,41 @@ static void mkv_write_block(AVFormatCont
av_free(data);
}
+static int srt_get_duration(uint8_t **buf)
+{
+ int i, duration = 0;
+
+ for (i=0; i<2 && !duration; i++) {
+ int s_hour, s_min, s_sec, s_hsec, e_hour, e_min, e_sec, e_hsec;
+ if (sscanf(*buf, "%d:%2d:%2d%*1[,.]%3d --> %d:%2d:%2d%*1[,.]%3d",
+ &s_hour, &s_min, &s_sec, &s_hsec,
+ &e_hour, &e_min, &e_sec, &e_hsec) == 8) {
+ s_min += 60*s_hour; e_min += 60*e_hour;
+ s_sec += 60*s_min; e_sec += 60*e_min;
+ s_hsec += 1000*s_sec; e_hsec += 1000*e_sec;
+ duration = e_hsec - s_hsec;
+ }
+ *buf += strcspn(*buf, "\n") + 1;
+ }
+ return duration;
+}
+
+static int mkv_write_srt_blocks(AVFormatContext *s, ByteIOContext *pb, AVPacket *pkt)
+{
+ ebml_master blockgroup;
+ AVPacket pkt2 = *pkt;
+ int64_t duration = srt_get_duration(&pkt2.data);
+ pkt2.size -= pkt2.data - pkt->data;
+
+ blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP,
+ mkv_blockgroup_size(pkt2.size));
+ mkv_write_block(s, pb, MATROSKA_ID_BLOCK, &pkt2, 0);
+ put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration);
+ end_ebml_master(pb, blockgroup);
+
+ return duration;
+}
+
static void mkv_flush_dynbuf(AVFormatContext *s)
{
MatroskaMuxContext *mkv = s->priv_data;
@@ -918,6 +953,8 @@ static int mkv_write_packet_internal(AVF
mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe << 7);
} else if (codec->codec_id == CODEC_ID_SSA) {
duration = mkv_write_ass_blocks(s, pb, pkt);
+ } else if (codec->codec_id == CODEC_ID_SRT) {
+ duration = mkv_write_srt_blocks(s, pb, pkt);
} else {
ebml_master blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(pkt->size));
duration = pkt->convergence_duration;
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