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author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-09-16 18:01:28 -0400 |
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committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-10-20 13:09:26 -0400 |
commit | 882dafe9b666a7333d1b256fafe63e35dc582e3f (patch) | |
tree | 696218ab0e91920744b83d771b5ac6f2e768605d /libavcodec/shorten.c | |
parent | bd7f7d6c7813ccf4ef1daaa7b01463f31fe7a7d4 (diff) | |
download | ffmpeg-882dafe9b666a7333d1b256fafe63e35dc582e3f.tar.gz |
shorten: check output buffer size before decoding
Diffstat (limited to 'libavcodec/shorten.c')
-rw-r--r-- | libavcodec/shorten.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index ec50fc1c6e..803175827d 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -550,9 +550,15 @@ static int shorten_decode_frame(AVCodecContext *avctx, /* if this is the last channel in the block, output the samples */ s->cur_chan++; if (s->cur_chan == s->channels) { + int out_size = s->blocksize * s->channels * + av_get_bytes_per_sample(avctx->sample_fmt); + if (*data_size < out_size) { + av_log(avctx, AV_LOG_ERROR, "Output buffer is too small\n"); + return AVERROR(EINVAL); + } samples = interleave_buffer(samples, s->channels, s->blocksize, s->decoded); s->cur_chan = 0; - *data_size = (int8_t *)samples - (int8_t *)data; + *data_size = out_size; } else { *data_size = 0; } |