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typefind: accept consecutive AC-3 frames of different sizes

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This is perfectly valid and occurs in particular when there are
(in)dependent substreams present.
This commit is contained in:
René Stadler 2010-12-03 16:54:21 +02:00
parent 0e39c62878
commit 725968c612
1 changed files with 5 additions and 4 deletions
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9
gst/typefind/gsttypefindfunctions.c
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@ -1270,13 +1270,14 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
data_scan_ctx_advance (tf, &c_next, frame_size * 2); data_scan_ctx_advance (tf, &c_next, frame_size * 2);
if (c_next.data[0] == 0x0b && c_next.data[1] == 0x77) { if (c_next.data[0] == 0x0b && c_next.data[1] == 0x77) {
guint fscod2 = c_next.data[4] >> 6; fscod = c_next.data[4] >> 6;
guint frmsizecod2 = c_next.data[4] & 0x3f; frmsizecod = c_next.data[4] & 0x3f;
if (fscod == fscod2 && frmsizecod == frmsizecod2) { if (fscod < 3 && frmsizecod < 38) {
GstTypeFindProbability prob; GstTypeFindProbability prob;
GST_LOG ("found second AC3 frame, looks good"); GST_LOG ("found second AC3 frame (size=%u), looks good",
ac3_frmsizecod_tbl[frmsizecod].frm_size[fscod]);
if (c.offset == 0) if (c.offset == 0)
prob = GST_TYPE_FIND_MAXIMUM; prob = GST_TYPE_FIND_MAXIMUM;
else else