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swr: limit buffer size for silence injection

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This reduces memory usage for unreasonable large silence injections

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-01-13 15:57:56 +01:00
parent b481d09bd9
commit a34aee4646
1 changed files with 7 additions and 0 deletions
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7
libswresample/swresample.c
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@ -818,6 +818,13 @@ int swr_inject_silence(struct SwrContext *s, int count){
if(count <= 0) if(count <= 0)
return 0; return 0;
#define MAX_SILENCE_STEP 16384
while (count > MAX_SILENCE_STEP) {
if ((ret = swr_inject_silence(s, MAX_SILENCE_STEP)) < 0)
return ret;
count -= MAX_SILENCE_STEP;
}
if((ret=swri_realloc_audio(&s->silence, count))<0) if((ret=swri_realloc_audio(&s->silence, count))<0)
return ret; return ret;