aboutsummaryrefslogtreecommitdiffstats
path: root/libavformat/matroskaenc.c
diff options
context:
space:
mode:
authorDavid Conrad <lessen42@gmail.com>2007-09-05 00:24:01 +0000
committerDavid Conrad <lessen42@gmail.com>2007-09-05 00:24:01 +0000
commit80380a0f712aeedd84ee6be913307253b58012dd (patch)
treee5ddeb508c19f66fd006e47a2b2eaab1acced852 /libavformat/matroskaenc.c
parent5fd35c6e001b01695bb1b2c39f60fd66dea78260 (diff)
downloadffmpeg-80380a0f712aeedd84ee6be913307253b58012dd.tar.gz
Write the creation time
Originally committed as revision 10336 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/matroskaenc.c')
-rw-r--r--libavformat/matroskaenc.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 03302ecf3f..703a05d734 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -127,6 +127,18 @@ static void put_ebml_string(ByteIOContext *pb, unsigned int elementid, const cha
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
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)) {
put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , LIBAVFORMAT_IDENT);
put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT);
+ put_ebml_date (pb, MATROSKA_ID_DATEUTC , av_gettime() );
}
// XXX: segment UID
// reserve space for the duration