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ao_coreaudio: fix crash when using mute with S/PDIF output 

RenderCallbackSPDIF might call read_buffer with NULL data. The purpose
is to drain data from the buffer when the output is muted. Add a check
to call av_fifo_drain() in this case.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34241 b3059339-0415-0410-9bf9-f77b7e298cf2

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@34242 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2011-10-23 12:03:13 +00:00 committed by Uoti Urpala
parent 075edf91f1
commit 9fae75b81c
1 changed files with 4 additions and 1 deletions
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5
libao2/ao_coreaudio.c
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@ -133,7 +133,10 @@ static int write_buffer(unsigned char* data, int len){
static int read_buffer(unsigned char* data,int len){
int buffered = av_fifo_size(ao->buffer);
if (len > buffered) len = buffered;
av_fifo_generic_read(ao->buffer, data, len, NULL);
if (data)
av_fifo_generic_read(ao->buffer, data, len, NULL);
else
av_fifo_drain(ao->buffer, len);
return len;
}