Rename h264_idct_sse2.asm to h264_idct.asm; move inline IDCT asm from

[ffmpeg] / libavutil / fifo.h

diff --git a/libavutil/fifo.h b/libavutil/fifo.h
index a62ef7d07c072272d290d8df360903461781cbe9..999d0bf89b9660b5b0a2817dca5809e48b092815 100644 (file)
--- a/libavutil/fifo.h
+++ b/libavutil/fifo.h
@@ -17,7 +17,7 @@
  */
 
 /**
- * @file libavutil/fifo.h
+ * @file
  * a very simple circular buffer FIFO implementation
  */
 
@@ -25,8 +25,6 @@
 #define AVUTIL_FIFO_H
 
 #include <stdint.h>
-#include "avutil.h"
-#include "common.h"
 
 typedef struct AVFifoBuffer {
     uint8_t *buffer;
@@ -35,21 +33,26 @@ typedef struct AVFifoBuffer {
 } AVFifoBuffer;
 
 /**
- * Initializes an AVFifoBuffer.
- * @param *f AVFifoBuffer to initialize
+ * Initialize an AVFifoBuffer.
  * @param size of FIFO
- * @return <0 for failure >=0 otherwise
+ * @return AVFifoBuffer or NULL in case of memory allocation failure
  */
-int av_fifo_init(AVFifoBuffer *f, unsigned int size);
+AVFifoBuffer *av_fifo_alloc(unsigned int size);
 
 /**
- * Frees an AVFifoBuffer.
+ * Free an AVFifoBuffer.
  * @param *f AVFifoBuffer to free
  */
 void av_fifo_free(AVFifoBuffer *f);
 
 /**
- * Returns the amount of data in bytes in the AVFifoBuffer, that is the
+ * Reset 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);
+
+/**
+ * Return 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
  * @return size
@@ -57,36 +60,27 @@ 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
+ * Return 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.
+ * Feed data from an AVFifoBuffer to a user-supplied callback.
  * @param *f AVFifoBuffer to read from
  * @param buf_size number of bytes to read
  * @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);
+int av_fifo_generic_read(AVFifoBuffer *f, void *dest, int buf_size, void (*func)(void*, void*, int));
 
-#if LIBAVUTIL_VERSION_MAJOR < 50
 /**
- * Writes data into an AVFifoBuffer.
+ * Feed data from a user-supplied callback to 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
-
-/**
- * Feeds data from a user-supplied callback to an AVFifoBuffer.
- * @param *f AVFifoBuffer to write to
- * @param *src data source
+ * @param *src data source; non-const since it may be used as a
+ * modifiable context by the function defined in func
  * @param size number of bytes to write
  * @param *func generic write function; the first parameter is src,
  * the second is dest_buf, the third is dest_buf_size.
@@ -97,18 +91,8 @@ 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.
+ * Resize an AVFifoBuffer.
  * @param *f AVFifoBuffer to resize
  * @param size new AVFifoBuffer size in bytes
  * @return <0 for failure, >=0 otherwise
@@ -116,7 +100,7 @@ attribute_deprecated void av_fifo_realloc(AVFifoBuffer *f, unsigned int size);
 int av_fifo_realloc2(AVFifoBuffer *f, unsigned int size);
 
 /**
- * Reads and discards the specified amount of data from an AVFifoBuffer.
+ * Read and discard the specified amount of data from an AVFifoBuffer.
  * @param *f AVFifoBuffer to read from
  * @param size amount of data to read in bytes
  */