framepool.h File Reference

#include "libavutil/buffer.h"
#include "libavutil/frame.h"
#include "libavutil/internal.h"

Go to the source code of this file.

Data Structures
struct	FFFramePool
	Frame pool. More...

Functions
int	ff_frame_pool_video_reinit (FFFramePool *pool, int width, int height, enum AVPixelFormat format, int align)
	Recreate the video frame pool if its current configuration differs from the provided configuration. More...
int	ff_frame_pool_audio_reinit (FFFramePool *pool, int channels, int nb_samples, enum AVSampleFormat format, int align)
	Recreate the audio frame pool if its current configuration differs from the provided configuration. More...
void	ff_frame_pool_uninit (FFFramePool *pool)
	Deallocate the frame pool. More...
AVFrame *	ff_frame_pool_get (FFFramePool *pool)
	Allocate a new AVFrame, reusing old buffers from the pool when available. More...

Function Documentation

ff_frame_pool_video_reinit()

int ff_frame_pool_video_reinit	(	FFFramePool *	pool,
		int	width,
		int	height,
		enum AVPixelFormat	format,
		int	align
	)

Recreate the video frame pool if its current configuration differs from the provided configuration.

If initialization fails, the old pool is kept unchanged.

Parameters

pool	pointer to the frame pool to be (re)initialized
width	width of each frame in this pool
height	height of each frame in this pool
format	format of each frame in this pool
align	buffers alignment of each frame in this pool

Returns

0 on success, a negative AVERROR otherwise.

Definition at line 223 of file framepool.c.

Referenced by ff_default_get_video_buffer2(), and sws_frame_setup().

ff_frame_pool_audio_reinit()

int ff_frame_pool_audio_reinit	(	FFFramePool *	pool,
		int	channels,
		int	nb_samples,
		enum AVSampleFormat	format,
		int	align
	)

Recreate the audio frame pool if its current configuration differs from the provided configuration.

If initialization fails, the old pool is kept unchanged.

Parameters

pool	pointer to the frame pool to be (re)initialized
channels	channels of each frame in this pool
nb_samples	number of samples of each frame in this pool
format	format of each frame in this pool
align	buffers alignment of each frame in this pool

Returns

0 on success, a negative AVERROR otherwise.

Definition at line 244 of file framepool.c.

Referenced by ff_default_get_audio_buffer().

ff_frame_pool_uninit()

void ff_frame_pool_uninit

(

FFFramePool *

pool

)

Deallocate the frame pool.

It is safe to call this function while some of the allocated frame are still in use.

Parameters

pool	pointer to the frame pool to be uninitialized

Definition at line 215 of file framepool.c.

Referenced by ff_frame_pool_audio_reinit(), ff_frame_pool_video_reinit(), frame_pool_audio_init(), frame_pool_video_init(), link_free(), and sws_freeContext().

ff_frame_pool_get()

AVFrame* ff_frame_pool_get

(

FFFramePool *

pool

)

Allocate a new AVFrame, reusing old buffers from the pool when available.

This function may be called simultaneously from multiple threads.

Returns

a new AVFrame on success, NULL on error.

Definition at line 128 of file framepool.c.

Referenced by ff_default_get_audio_buffer(), and ff_default_get_video_buffer2().