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Write the creation time

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Originally committed as revision 10336 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2007-09-05 00:24:01 +00:00
parent 5fd35c6e00
commit 80380a0f71
1 changed files with 13 additions and 0 deletions
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13
libavformat/matroskaenc.c
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@ -127,6 +127,18 @@ static void put_ebml_string(ByteIOContext *pb, unsigned int elementid, const cha
put_ebml_binary(pb, elementid, str, strlen(str)); put_ebml_binary(pb, elementid, str, strlen(str));
} }
// avtime is POSIX time, microseconds
static void put_ebml_date(ByteIOContext *pb, unsigned int elementid, int64_t avtime)
{
// midnight Jan 1, 1970 in UNIX epoch, microseconds
const int64_t ebmlDateStart = 978307200ULL * 1000000;
int64_t ebmlTime = (avtime - ebmlDateStart) * 1000;
put_ebml_id(pb, elementid);
put_ebml_size(pb, 8, 0);
put_be64(pb, ebmlTime);
}
// this reserves exactly the amount of space specified by size, which must be at least 2 // this reserves exactly the amount of space specified by size, which must be at least 2
static void put_ebml_void(ByteIOContext *pb, uint64_t size) static void put_ebml_void(ByteIOContext *pb, uint64_t size)
{ {
@ -526,6 +538,7 @@ static int mkv_write_header(AVFormatContext *s)
if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) { if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) {
put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , LIBAVFORMAT_IDENT); put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , LIBAVFORMAT_IDENT);
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT); put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT);
put_ebml_date (pb, MATROSKA_ID_DATEUTC , av_gettime() );
} }
// XXX: segment UID // XXX: segment UID
// reserve space for the duration // reserve space for the duration