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Fix division by zero in some cases

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This commit is contained in:
bnnm 2017-08-25 23:27:23 +02:00
parent a04b83b206
commit be5a0371f5
1 changed files with 8 additions and 0 deletions
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8
src/meta/txth.c
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@ -624,8 +624,12 @@ fail:
}
static int get_bytes_to_samples(txth_header * txth, uint32_t bytes) {
if (!txth->channels)
return 0; /* div-by-zero is no fun */
switch(txth->codec) {
case MS_IMA:
if (!txth->interleave) return 0;
return ms_ima_bytes_to_samples(bytes, txth->interleave, txth->channels);
case XBOX:
return ms_ima_bytes_to_samples(bytes, 0x24 * txth->channels, txth->channels);
@ -642,10 +646,13 @@ static int get_bytes_to_samples(txth_header * txth, uint32_t bytes) {
case PCM8_U:
return pcm_bytes_to_samples(bytes, txth->channels, 8);
case MSADPCM:
if (!txth->interleave) return 0;
return msadpcm_bytes_to_samples(bytes, txth->interleave, txth->channels);
case ATRAC3:
if (!txth->interleave) return 0;
return atrac3_bytes_to_samples(bytes, txth->interleave);
case ATRAC3PLUS:
if (!txth->interleave) return 0;
return atrac3plus_bytes_to_samples(bytes, txth->interleave);
/* XMA bytes-to-samples is done at the end as the value meanings are a bit different */
@ -663,6 +670,7 @@ static int get_bytes_to_samples(txth_header * txth, uint32_t bytes) {
case NGC_DTK:
return bytes / 32 * 28; /* always stereo? */
case APPLE_IMA4:
if (!txth->interleave) return 0;
return (bytes / txth->interleave) * (txth->interleave - 2) * 2;
case MPEG: /* a bit complex */