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| author | Michael Niedermayer <michaelni@gmx.at> | 2011-12-25 12:28:50 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-01-12 21:55:59 +0100 |
| commit | 8935e7474ada9f18e9c21ec3a0a1706040e7b3be (patch) | |
| tree | b77ac22c70f608c9ba27f3e96a2682fe9e9c885e | |
| parent | 4ad5618210edabcc28b8ceee77d22e2e1e7eb822 (diff) | |
| download | ffmpeg-8935e7474ada9f18e9c21ec3a0a1706040e7b3be.tar.gz | |
shorten: Fix invalid free()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 18bcfc912e48bf77a5202a0e24a3b884b9b2ff2c)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/shorten.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index 0b9d420d86..621281fc75 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -81,6 +81,7 @@ typedef struct ShortenContext { int channels; int32_t *decoded[MAX_CHANNELS]; + int32_t *decoded_base[MAX_CHANNELS]; int32_t *offset[MAX_CHANNELS]; int *coeffs; uint8_t *bitstream; @@ -130,13 +131,13 @@ static int allocate_buffers(ShortenContext *s) return AVERROR(ENOMEM); s->offset[chan] = tmp_ptr; - tmp_ptr = av_realloc(s->decoded[chan], sizeof(int32_t)*(s->blocksize + s->nwrap)); + tmp_ptr = av_realloc(s->decoded_base[chan], sizeof(int32_t)*(s->blocksize + s->nwrap)); if (!tmp_ptr) return AVERROR(ENOMEM); - s->decoded[chan] = tmp_ptr; + s->decoded_base[chan] = tmp_ptr; for (i=0; i<s->nwrap; i++) - s->decoded[chan][i] = 0; - s->decoded[chan] += s->nwrap; + s->decoded_base[chan][i] = 0; + s->decoded[chan] = s->decoded_base[chan] + s->nwrap; } coeffs = av_realloc(s->coeffs, s->nwrap * sizeof(*s->coeffs)); @@ -548,8 +549,8 @@ static av_cold int shorten_decode_close(AVCodecContext *avctx) int i; for (i = 0; i < s->channels; i++) { - s->decoded[i] -= s->nwrap; - av_freep(&s->decoded[i]); + s->decoded[i] = NULL; + av_freep(&s->decoded_base[i]); av_freep(&s->offset[i]); } av_freep(&s->bitstream); |