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Code Issues Releases Activity

sipr: fix the output data size check and only calculate it once.

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This commit is contained in:
Justin Ruggles 2011-09-20 15:27:44 -04:00
parent 12bd8532cf
commit 1b5a189f06
1 changed files with 7 additions and 4 deletions
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11
libavcodec/sipr.c
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@ -509,7 +509,7 @@ static int sipr_decode_frame(AVCodecContext *avctx, void *datap,
GetBitContext gb;
float *data = datap;
int subframe_size = ctx->mode == MODE_16k ? L_SUBFR_16k : SUBFR_SIZE;
int i;
int i, out_size;
ctx->avctx = avctx;
if (avpkt->size < (mode_par->bits_per_frame >> 3)) {
@ -520,7 +520,11 @@ static int sipr_decode_frame(AVCodecContext *avctx, void *datap,
*data_size = 0;
return -1;
}
if (*data_size < subframe_size * mode_par->subframe_count * sizeof(float)) {
out_size = mode_par->frames_per_packet * subframe_size *
mode_par->subframe_count *
av_get_bytes_per_sample(avctx->sample_fmt);
if (*data_size < out_size) {
av_log(avctx, AV_LOG_ERROR,
"Error processing packet: output buffer (%d) too small\n",
*data_size);
@ -542,8 +546,7 @@ static int sipr_decode_frame(AVCodecContext *avctx, void *datap,
data += subframe_size * mode_par->subframe_count;
}
*data_size = mode_par->frames_per_packet * subframe_size *
mode_par->subframe_count * sizeof(float);
*data_size = out_size;
return mode_par->bits_per_frame >> 3;
}