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avresample: Reallocate the internal buffer to the correct size

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Fixes the corner case in which the internal buffer size
is larger than input buffer provided and resizing it
before moving the left over samples would make it write
to now unallocated memory.

Bug-Id: 825
CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Luca Barbato 2015-04-28 01:55:10 +02:00
parent 82de8d7111
commit 0ac8ff618c
1 changed files with 3 additions and 1 deletions
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4
libavresample/resample.c
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@ -434,7 +434,9 @@ int ff_audio_resample(ResampleContext *c, AudioData *dst, AudioData *src)
int bps = av_get_bytes_per_sample(c->avr->internal_sample_fmt);
int i;
ret = ff_audio_data_realloc(c->buffer, in_samples + c->padding_size);
ret = ff_audio_data_realloc(c->buffer,
FFMAX(in_samples, in_leftover) +
c->padding_size);
if (ret < 0) {
av_log(c->avr, AV_LOG_ERROR, "Error reallocating resampling buffer\n");
return AVERROR(ENOMEM);