mpegpsdec: fix reading first mpegps packet

14 years ago · b2f230e23d
parent 140dbcff35
commit b2f230e23d
1 changed files with 4 additions and 0 deletions
--- a/libavformat/mpeg.c
+++ b/libavformat/mpeg.c
@ -106,6 +106,7 @@ static int mpegps_read_header(AVFormatContext *s,
    MpegDemuxContext *m = s->priv_data;
    const char *sofdec = "Sofdec";
    int v, i = 0;
+    int64_t last_pos = avio_tell(s->pb);

    m->header_state = 0xff;
    s->ctx_flags |= AVFMTCTX_NOHEADER;
@ -119,6 +120,9 @@ static int mpegps_read_header(AVFormatContext *s,

    m->sofdec = (m->sofdec == 6) ? 1 : 0;

+    if (!m->sofdec)
+       avio_seek(s->pb, last_pos, SEEK_SET);
+
    /* no need to do more */
    return 0;
 }