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ac3parse: relax bsid checking

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... to the widest possible spec interpretation.

Fixes #637062.
This commit is contained in:
Mark Nauwelaerts 2010-12-13 15:17:29 +01:00
parent 25007c3c9d
commit 01e9b677a8
1 changed files with 5 additions and 2 deletions
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7
gst/audioparsers/gstac3parse.c
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@ -262,10 +262,13 @@ gst_ac3_parse_frame_header_ac3 (GstAc3Parse * ac3parse, GstBuffer * buf,
bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3); bsmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3); acmod = gst_bit_reader_get_bits_uint8_unchecked (&bits, 3);
/* FIXME: are other bsids ok as well? check spec */ /* spec not quite clear here: decoder should decode if less than 8,
if (bsid != 8 && bsid != 6) { * but seemingly only defines 6 and 8 cases */
if (bsid > 8) {
GST_DEBUG_OBJECT (ac3parse, "unexpected bsid=%d", bsid); GST_DEBUG_OBJECT (ac3parse, "unexpected bsid=%d", bsid);
return FALSE; return FALSE;
} else if (bsid != 8 && bsid != 6) {
GST_DEBUG_OBJECT (ac3parse, "undefined bsid=%d", bsid);
} }
if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */ if ((acmod & 0x1) && (acmod != 0x1)) /* 3 front channels */