Add av_fifo_reset function to completely reset fifo state, which makes

it easier to reuse the fifo.

Originally committed as revision 17901 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 6 insertions, 0 deletions

diff --git a/libavutil/fifo.h b/libavutil/fifo.h
index 9ba7e700fc..f64914f7c6 100644
--- a/libavutil/fifo.h
+++ b/libavutil/fifo.h
@@ -48,6 +48,12 @@ AVFifoBuffer *av_fifo_alloc(unsigned int size);
 void av_fifo_free(AVFifoBuffer *f);
 
 /**
+ * Resets the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
+ * @param *f AVFifoBuffer to reset
+ */
+void av_fifo_reset(AVFifoBuffer *f);
+
+/**
  * Returns the amount of data in bytes in the AVFifoBuffer, that is the
  * amount of data you can read from it.
  * @param *f AVFifoBuffer to read from