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g722enc: check for trellis data allocation error

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This commit is contained in:
Justin Ruggles 2012-02-20 13:12:37 -05:00
parent ca300d938b
commit 8e2555d3b1
1 changed files with 20 additions and 12 deletions
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32
libavcodec/g722enc.c
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@ -41,9 +41,22 @@
#define MIN_TRELLIS 0
#define MAX_TRELLIS 16
static av_cold int g722_encode_close(AVCodecContext *avctx)
{
G722Context *c = avctx->priv_data;
int i;
for (i = 0; i < 2; i++) {
av_freep(&c->paths[i]);
av_freep(&c->node_buf[i]);
av_freep(&c->nodep_buf[i]);
}
return 0;
}
static av_cold int g722_encode_init(AVCodecContext * avctx)
{
G722Context *c = avctx->priv_data;
int ret;
if (avctx->channels != 1) {
av_log(avctx, AV_LOG_ERROR, "Only mono tracks are allowed.\n");
@ -62,6 +75,10 @@ static av_cold int g722_encode_init(AVCodecContext * avctx)
c->paths[i] = av_mallocz(max_paths * sizeof(**c->paths));
c->node_buf[i] = av_mallocz(2 * frontier * sizeof(**c->node_buf));
c->nodep_buf[i] = av_mallocz(2 * frontier * sizeof(**c->nodep_buf));
if (!c->paths[i] || !c->node_buf[i] || !c->nodep_buf[i]) {
ret = AVERROR(ENOMEM);
goto error;
}
}
}
@ -100,18 +117,9 @@ static av_cold int g722_encode_init(AVCodecContext * avctx)
}
return 0;
}
static av_cold int g722_encode_close(AVCodecContext *avctx)
{
G722Context *c = avctx->priv_data;
int i;
for (i = 0; i < 2; i++) {
av_freep(&c->paths[i]);
av_freep(&c->node_buf[i]);
av_freep(&c->nodep_buf[i]);
}
return 0;
error:
g722_encode_close(avctx);
return ret;
}
static const int16_t low_quant[33] = {