RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

mlpdec: only calculate output size once

This commit is contained in:
Justin Ruggles 2011-09-21 12:14:28 -04:00
parent caa845851d
commit 37b67f1bff
1 changed files with 7 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
libavcodec/mlpdec.c
View File

@ -906,6 +906,7 @@ static int output_data_internal(MLPDecodeContext *m, unsigned int substr,
{
SubStream *s = &m->substream[substr];
unsigned int i, out_ch = 0;
int out_size;
int32_t *data_32 = (int32_t*) data;
int16_t *data_16 = (int16_t*) data;
@ -914,8 +915,11 @@ static int output_data_internal(MLPDecodeContext *m, unsigned int substr,
return AVERROR_INVALIDDATA;
}
if (*data_size < m->avctx->channels * s->blockpos * (is32 ? 4 : 2))
return -1;
out_size = s->blockpos * m->avctx->channels *
av_get_bytes_per_sample(m->avctx->sample_fmt);
if (*data_size < out_size)
return AVERROR(EINVAL);
for (i = 0; i < s->blockpos; i++) {
for (out_ch = 0; out_ch <= s->max_matrix_channel; out_ch++) {
@ -928,7 +932,7 @@ static int output_data_internal(MLPDecodeContext *m, unsigned int substr,
}
}
*data_size = i * out_ch * (is32 ? 4 : 2);
*data_size = out_size;
return 0;
}