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(e)ac3: clip surround mix level indexes. 

Values 0-2 are reserved, 3 (-1.5dB) should be used instead.
This commit is contained in:
Tim Walker 2014-01-17 16:06:34 +01:00
parent c229f571fd
commit ade75fb811
2 changed files with 4 additions and 4 deletions
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4
libavcodec/ac3dec.c
View File

@ -237,9 +237,9 @@ static int ac3_parse_header(AC3DecodeContext *s)
if (get_bits1(gbc)) {
s->preferred_downmix = get_bits(gbc, 2);
s->center_mix_level_ltrt = get_bits(gbc, 3);
s->surround_mix_level_ltrt = get_bits(gbc, 3);
s->surround_mix_level_ltrt = av_clip(get_bits(gbc, 3), 3, 7);
s->center_mix_level = get_bits(gbc, 3);
s->surround_mix_level = get_bits(gbc, 3);
s->surround_mix_level = av_clip(get_bits(gbc, 3), 3, 7);
}
if (get_bits1(gbc)) {
s->dolby_surround_ex_mode = get_bits(gbc, 2);

4
libavcodec/eac3dec.c
View File

@ -353,8 +353,8 @@ int ff_eac3_parse_header(AC3DecodeContext *s)
}
if (s->channel_mode & 4) {
/* if a surround channel exists */
s->surround_mix_level_ltrt = get_bits(gbc, 3);
s->surround_mix_level = get_bits(gbc, 3);
s->surround_mix_level_ltrt = av_clip(get_bits(gbc, 3), 3, 7);
s->surround_mix_level = av_clip(get_bits(gbc, 3), 3, 7);
}
}