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Merge remote-tracking branch 'qatar/master'

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* qatar/master:
  qdm2: Conceal broken samples

See: 5ee008e01d5a50d976b5f2a4abd6932185672d91

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-07-10 15:47:50 +02:00
commit 2e6338b472
1 changed files with 11 additions and 8 deletions
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19
libavcodec/qdm2.c
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@ -532,8 +532,8 @@ static void build_sb_samples_from_noise(QDM2Context *q, int sb)
* @param channels number of channels
* @param coding_method q->coding_method[0][0][0]
*/
static void fix_coding_method_array(int sb, int channels,
sb_int8_array coding_method)
static int fix_coding_method_array(int sb, int channels,
sb_int8_array coding_method)
{
int j, k;
int ch;
@ -541,6 +541,8 @@ static void fix_coding_method_array(int sb, int channels,
for (ch = 0; ch < channels; ch++) {
for (j = 0; j < 64; ) {
if (coding_method[ch][sb][j] < 8)
return -1;
if ((coding_method[ch][sb][j] - 8) > 22) {
run = 1;
case_val = 8;
@ -586,6 +588,7 @@ static void fix_coding_method_array(int sb, int channels,
j += run;
}
}
return 0;
}
/**
@ -844,16 +847,16 @@ static int synthfilt_build_sb_samples(QDM2Context *q, GetBitContext *gb,
for (j = 0; j < 16; j++)
sign_bits[j] = get_bits1 (gb);
if (q->coding_method[0][sb][0] <= 0) {
av_log(NULL, AV_LOG_ERROR, "coding method invalid\n");
return AVERROR_INVALIDDATA;
}
for (j = 0; j < 64; j++)
if (q->coding_method[1][sb][j] > q->coding_method[0][sb][j])
q->coding_method[0][sb][j] = q->coding_method[1][sb][j];
fix_coding_method_array(sb, q->nb_channels, q->coding_method);
if (fix_coding_method_array(sb, q->nb_channels,
q->coding_method)) {
av_log(NULL, AV_LOG_ERROR, "coding method invalid\n");
build_sb_samples_from_noise(q, sb);
continue;
}
channels = 1;
}