container_fifo.c File Reference

#include "libavutil/error.h"
#include "libavutil/fifo.h"
#include "libavutil/frame.h"
#include "libavutil/mem.h"
#include "container_fifo.h"
#include "refstruct.h"

Go to the source code of this file.

Data Structures
struct	ContainerFifo
	ContainerFifo is a FIFO for "containers" - dynamically allocated reusable structs (e.g. More...

Functions
static int	container_fifo_init_entry (FFRefStructOpaque opaque, void *obj)
static void	container_fifo_reset_entry (FFRefStructOpaque opaque, void *obj)
static void	container_fifo_free_entry (FFRefStructOpaque opaque, void *obj)
ContainerFifo *	ff_container_fifo_alloc (void *(*container_alloc)(void), void(*container_reset)(void *obj), void(*container_free)(void *obj), int(*fifo_write)(void *dst, void *src), int(*fifo_read)(void *dst, void *src))
	Allocate a new ContainerFifo for the container type defined by provided callbacks. More...
void	ff_container_fifo_free (ContainerFifo **pcf)
	Free a ContainerFifo and everything in it. More...
int	ff_container_fifo_read (ContainerFifo *cf, void *obj)
	Read the next available object from the FIFO into obj. More...
int	ff_container_fifo_write (ContainerFifo *cf, void *obj)
	Write the contents of obj to the FIFO. More...
size_t	ff_container_fifo_can_read (ContainerFifo *cf)
static void *	frame_alloc (void)
static void	frame_reset (void *obj)
static void	frame_free (void *obj)
static int	frame_ref (void *dst, void *src)
static int	frame_move_ref (void *dst, void *src)
ContainerFifo *	ff_container_fifo_alloc_avframe (unsigned flags)
	Allocate a ContainerFifo instance for AVFrames. More...

Function Documentation

container_fifo_init_entry()

static int container_fifo_init_entry ( FFRefStructOpaque  opaque, void *  obj  )

static

Definition at line 39 of file container_fifo.c.

Referenced by ff_container_fifo_alloc().

container_fifo_reset_entry()

static void container_fifo_reset_entry ( FFRefStructOpaque  opaque, void *  obj  )

static

Definition at line 51 of file container_fifo.c.

Referenced by ff_container_fifo_alloc().

container_fifo_free_entry()

static void container_fifo_free_entry ( FFRefStructOpaque  opaque, void *  obj  )

static

Definition at line 57 of file container_fifo.c.

Referenced by ff_container_fifo_alloc().

ff_container_fifo_alloc()

ContainerFifo* ff_container_fifo_alloc	(	void *(*)(void)	container_alloc,
		void(*)(void *obj)	container_reset,
		void(*)(void *obj)	container_free,
		int(*)(void *dst, void *src)	fifo_write,
		int(*)(void *dst, void *src)	fifo_read
	)

Allocate a new ContainerFifo for the container type defined by provided callbacks.

Parameters

container_alloc	allocate a new container instance and return a pointer to it, or NULL on failure
container_reset	reset the provided container instance to a clean state
container_free	free the provided container instance
fifo_write	transfer the contents of src to dst, where src is a container instance provided to ff_container_fifo_write()
fifo_read	transfer the contents of src to dst in other cases

Note

fifo_read() and fifo_write() are different parameters in order to allow fifo_write() implementations that make a new reference in dst, leaving src untouched (see e.g. ff_container_fifo_alloc_avframe())

Definition at line 64 of file container_fifo.c.

Referenced by ff_container_fifo_alloc_avframe().

ff_container_fifo_free()

void ff_container_fifo_free

(

ContainerFifo **

pcf

)

Free a ContainerFifo and everything in it.

Definition at line 100 of file container_fifo.c.

Referenced by ff_container_fifo_alloc(), and hevc_decode_free().

ff_container_fifo_read()

int ff_container_fifo_read	(	ContainerFifo *	pf,
		void *	obj
	)

Read the next available object from the FIFO into obj.

The fifo_read() callback previously provided to ff_container_fifo_alloc() will be called with obj as dst in order to perform the actual transfer.

Definition at line 121 of file container_fifo.c.

Referenced by hevc_receive_frame().

ff_container_fifo_write()

int ff_container_fifo_write	(	ContainerFifo *	pf,
		void *	obj
	)

Write the contents of obj to the FIFO.

The fifo_write() callback previously provided to ff_container_fifo_alloc() will be called with obj as src in order to perform the actual transfer.

Definition at line 136 of file container_fifo.c.

Referenced by ff_hevc_output_frames().

ff_container_fifo_can_read()

size_t ff_container_fifo_can_read

(

ContainerFifo *

pf

)

Returns

number of objects available for reading

Definition at line 159 of file container_fifo.c.

Referenced by hevc_receive_frame().

frame_alloc()

static void* frame_alloc ( void  )

static

Definition at line 164 of file container_fifo.c.

Referenced by ff_container_fifo_alloc_avframe().

frame_reset()

static void frame_reset ( void *  obj )

static

Definition at line 169 of file container_fifo.c.

Referenced by ff_container_fifo_alloc_avframe().

frame_free()

static void frame_free ( void *  obj )

static

Definition at line 174 of file container_fifo.c.

Referenced by ff_container_fifo_alloc_avframe().

frame_ref()

static int frame_ref ( void *  dst, void *  src  )

static

Definition at line 180 of file container_fifo.c.

Referenced by amf_create_buffer_with_frame_ref(), amf_release_buffer_with_frame_ref(), ff_container_fifo_alloc_avframe(), and vp56_render_mb().

frame_move_ref()

static int frame_move_ref ( void *  dst, void *  src  )

static

Definition at line 185 of file container_fifo.c.

Referenced by ff_container_fifo_alloc_avframe().

ff_container_fifo_alloc_avframe()

ContainerFifo* ff_container_fifo_alloc_avframe

(

unsigned

flags

)

Allocate a ContainerFifo instance for AVFrames.

Note that ff_container_fifo_write() will call av_frame_ref() on src, making a new reference in dst and leaving src untouched.

Parameters

flags

unused currently

Definition at line 191 of file container_fifo.c.

Referenced by hevc_init_context().