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avutil/fifo: assert that theres enough data in the fifo on drain calls.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-09-03 03:05:41 +02:00
parent 3e36dc8626
commit cc84f30402
1 changed files with 3 additions and 0 deletions
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3
libavutil/fifo.c
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@ -19,6 +19,8 @@
* License along with FFmpeg; if not, write to the Free Software * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/ */
#include "avassert.h"
#include "common.h" #include "common.h"
#include "fifo.h" #include "fifo.h"
@ -144,6 +146,7 @@ int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size,
/** Discard data from the FIFO. */ /** Discard data from the FIFO. */
void av_fifo_drain(AVFifoBuffer *f, int size) void av_fifo_drain(AVFifoBuffer *f, int size)
{ {
av_assert2(av_fifo_size(f) >= size);
f->rptr += size; f->rptr += size;
if (f->rptr >= f->end) if (f->rptr >= f->end)
f->rptr -= f->end - f->buffer; f->rptr -= f->end - f->buffer;