mov: Handle tfdt atoms

Signed-off-by: Martin Storsjö <martin@martin.st>

libavformat/mov.c

@@ -2618,6 +2618,36 @@ static int mov_read_trex(MOVContext *c, AVIOContext *pb, MOVAtom atom)
     return 0;
 }
 
+static int mov_read_tfdt(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+{
+    MOVFragment *frag = &c->fragment;
+    AVStream *st = NULL;
+    MOVStreamContext *sc;
+    int version, i;
+
+    for (i = 0; i < c->fc->nb_streams; i++) {
+        if (c->fc->streams[i]->id == frag->track_id) {
+            st = c->fc->streams[i];
+            break;
+        }
+    }
+    if (!st) {
+        av_log(c->fc, AV_LOG_ERROR, "could not find corresponding track id %d\n", frag->track_id);
+        return AVERROR_INVALIDDATA;
+    }
+    sc = st->priv_data;
+    if (sc->pseudo_stream_id + 1 != frag->stsd_id)
+        return 0;
+    version = avio_r8(pb);
+    avio_rb24(pb); /* flags */
+    if (version) {
+        sc->track_end = avio_rb64(pb);
+    } else {
+        sc->track_end = avio_rb32(pb);
+    }
+    return 0;
+}
+
 static int mov_read_trun(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 {
     MOVFragment *frag = &c->fragment;
@@ -2870,6 +2900,7 @@ static const MOVParseTableEntry mov_default_parse_table[] = {
 { MKTAG('s','t','t','s'), mov_read_stts },
 { MKTAG('s','t','z','2'), mov_read_stsz }, /* compact sample size */
 { MKTAG('t','k','h','d'), mov_read_tkhd }, /* track header */
+{ MKTAG('t','f','d','t'), mov_read_tfdt },
 { MKTAG('t','f','h','d'), mov_read_tfhd }, /* track fragment header */
 { MKTAG('t','r','a','k'), mov_read_trak },
 { MKTAG('t','r','a','f'), mov_read_default },