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Commit both patches in FS#10833 - Protect against division by zero in AAC (mp4) codec by Juliusz Chroboczek. Adds some return value checking so that faad errors don't crash rockbox when decoding broken or unsupported files.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23983 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Giacomelli 2009-12-14 01:09:01 +00:00
parent 69a5ff7f8a
commit d6ae8edc13
3 changed files with 8 additions and 6 deletions
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3
apps/codecs/libm4a/m4a.c
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@ -194,7 +194,8 @@ unsigned int get_sample_offset(demux_res_t *demux_res, uint32_t sample)
prev_chunk_samples = demux_res->sample_to_chunk[i].num_samples;
}
if (sample >= demux_res->sample_to_chunk[0].num_samples)
if (prev_chunk_samples > 0 &&
sample >= demux_res->sample_to_chunk[0].num_samples)
{
chunk = prev_chunk + (sample - total_samples) / prev_chunk_samples;
}