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authorDavid Conrad <lessen42@gmail.com>2010-03-09 04:23:36 +0000
committerDavid Conrad <lessen42@gmail.com>2010-03-09 04:23:36 +0000
commitf9ff7179ff901aa1e2721ff2d13482a792e6e82f (patch)
tree05fecf221bc1a843d9fa0008baad30b9ffd2445a /libavformat/matroskaenc.c
parent654b65d01229ad3016d34c4189d8b31f5981f570 (diff)
mkvenc: Handle negative timestamps correctly
Originally committed as revision 22372 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/matroskaenc.c')
-rw-r--r--libavformat/matroskaenc.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index c0d4f1b32a..e26e31a776 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -72,9 +72,9 @@ typedef struct MatroskaMuxContext {
int64_t segment_uid;
ebml_master cluster;
int64_t cluster_pos; ///< file offset of the current cluster
- uint64_t cluster_pts;
+ int64_t cluster_pts;
int64_t duration_offset;
- uint64_t duration;
+ int64_t duration;
mkv_seekhead *main_seekhead;
mkv_seekhead *cluster_seekhead;
mkv_cues *cues;
@@ -355,6 +355,9 @@ static int mkv_add_cuepoint(mkv_cues *cues, int stream, int64_t ts, int64_t clus
if (entries == NULL)
return AVERROR(ENOMEM);
+ if (ts < 0)
+ return 0;
+
entries[cues->num_entries ].pts = ts;
entries[cues->num_entries ].tracknum = stream + 1;
entries[cues->num_entries++].cluster_pos = cluster_pos - cues->segment_offset;
@@ -883,8 +886,8 @@ static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt)
mkv->cluster_pos = url_ftell(s->pb);
mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0);
- put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, ts);
- mkv->cluster_pts = ts;
+ put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, FFMAX(0, ts));
+ mkv->cluster_pts = FFMAX(0, ts);
av_md5_update(mkv->md5_ctx, pkt->data, FFMIN(200, pkt->size));
}