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simplify av_fifo_realloc()

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Originally committed as revision 7571 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-01-17 20:05:31 +00:00
parent 765d4f3b4a
commit 96e39edc59
1 changed files with 7 additions and 11 deletions
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18
libavutil/fifo.c
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@ -60,18 +60,14 @@ void av_fifo_realloc(AVFifoBuffer *f, unsigned int new_size) {
unsigned int old_size= f->end - f->buffer;
if(old_size < new_size){
uint8_t *old= f->buffer;
int len= av_fifo_size(f);
AVFifoBuffer f2;
f->buffer= av_realloc(f->buffer, new_size);
f->rptr += f->buffer - old;
f->wptr += f->buffer - old;
if(f->wptr < f->rptr){
memmove(f->rptr + new_size - old_size, f->rptr, f->buffer + old_size - f->rptr);
f->rptr += new_size - old_size;
}
f->end= f->buffer + new_size;
av_fifo_init(&f2, new_size);
av_fifo_read(f, f2.buffer, len);
f2.wptr += len;
av_free(f->buffer);
*f= f2;
}
}