X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavutil%2Ffifo.h;h=a904dfd02eec40b832b06dffc1c7923f2dddeaa2;hb=03703cb3d10b03f3ac8d599c9935a5285b411966;hp=1a549f254c1087e148b168c441d956c4558bd1be;hpb=bad5537e2c2caeb5deb1ff9d771ea01058b8010c;p=ffmpeg

diff --git a/libavutil/fifo.h b/libavutil/fifo.h
index 1a549f254c1..a904dfd02ee 100644
--- a/libavutil/fifo.h
+++ b/libavutil/fifo.h
@@ -31,15 +31,15 @@
 typedef struct AVFifoBuffer {
     uint8_t *buffer;
     uint8_t *rptr, *wptr, *end;
+    uint32_t rndx, wndx;
 } AVFifoBuffer;
 
 /**
  * Initializes an AVFifoBuffer.
- * @param *f AVFifoBuffer to initialize
  * @param size of FIFO
- * @return <0 for failure >=0 otherwise
+ * @return AVFifoBuffer or NULL if mem allocation failure
  */
-int av_fifo_init(AVFifoBuffer *f, unsigned int size);
+AVFifoBuffer *av_fifo_alloc(unsigned int size);
 
 /**
  * Frees an AVFifoBuffer.
@@ -47,6 +47,12 @@ int av_fifo_init(AVFifoBuffer *f, 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.
@@ -56,12 +62,12 @@ void av_fifo_free(AVFifoBuffer *f);
 int av_fifo_size(AVFifoBuffer *f);
 
 /**
- * Reads data from an AVFifoBuffer.
- * @param *f AVFifoBuffer to read from
- * @param *buf data destination
- * @param buf_size number of bytes to read
+ * Returns the amount of space in bytes in the AVFifoBuffer, that is the
+ * amount of data you can write into it.
+ * @param *f AVFifoBuffer to write into
+ * @return size
  */
-int av_fifo_read(AVFifoBuffer *f, uint8_t *buf, int buf_size);
+int av_fifo_space(AVFifoBuffer *f);
 
 /**
  * Feeds data from an AVFifoBuffer to a user-supplied callback.
@@ -70,17 +76,7 @@ int av_fifo_read(AVFifoBuffer *f, uint8_t *buf, int buf_size);
  * @param *func generic read function
  * @param *dest data destination
  */
-int av_fifo_generic_read(AVFifoBuffer *f, int buf_size, void (*func)(void*, void*, int), void* dest);
-
-#if LIBAVUTIL_VERSION_MAJOR < 50
-/**
- * Writes data into an AVFifoBuffer.
- * @param *f AVFifoBuffer to write to
- * @param *buf data source
- * @param size data size
- */
-attribute_deprecated void av_fifo_write(AVFifoBuffer *f, const uint8_t *buf, int size);
-#endif
+int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
 
 /**
  * Feeds data from a user-supplied callback to an AVFifoBuffer.
@@ -96,16 +92,6 @@ attribute_deprecated void av_fifo_write(AVFifoBuffer *f, const uint8_t *buf, int
  */
 int av_fifo_generic_write(AVFifoBuffer *f, void *src, int size, int (*func)(void*, void*, int));
 
-#if LIBAVUTIL_VERSION_MAJOR < 50
-/**
- * Resizes an AVFifoBuffer.
- * @param *f AVFifoBuffer to resize
- * @param size new AVFifoBuffer size in bytes
- * @see av_fifo_realloc2()
- */
-attribute_deprecated void av_fifo_realloc(AVFifoBuffer *f, unsigned int size);
-#endif
-
 /**
  * Resizes an AVFifoBuffer.
  * @param *f AVFifoBuffer to resize