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typefind: fix E-AC-3 frame size parsing

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Frame size is given in words; it is already multiplied by two where
needed, so the left shift is superfluous. This extra multiplication
caused the code to inspect the third packet instead of the second,
which would fail for files where the second packet has a size
different from the first.
This commit is contained in:
René Stadler 2010-12-03 18:08:58 +02:00
parent f9c7be9639
commit 886ea051e7
1 changed files with 1 additions and 2 deletions
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3
gst/typefind/gsttypefindfunctions.c
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@ -1295,8 +1295,7 @@ ac3_type_find (GstTypeFind * tf, gpointer unused)
DataScanCtx c_next = c;
guint frame_size;
frame_size = ((((c.data[2] & 0x07) << 8) +
(c.data[3] & 0xff)) + 1) << 1;
frame_size = (((c.data[2] & 0x07) << 8) + (c.data[3] & 0xff)) + 1;
GST_LOG ("possible E-AC3 frame sync at offset %"
G_GUINT64_FORMAT ", size=%u", c.offset, frame_size);
if (data_scan_ctx_ensure_data (tf, &c_next, (frame_size * 2) + 5)) {