libavfilter/internal.h File Reference

internal API functions More...

#include "avfilter.h"
#include "avfiltergraph.h"
#include "formats.h"

Go to the source code of this file.

Data Structures

struct AVFilterPool

struct AVFilterCommand

Defines

#define POOL_SIZE 32

#define FF_DPRINTF_START(ctx, func) av_dlog(NULL, "%-16s: ", #func)

Functions

int ff_avfilter_graph_check_validity (AVFilterGraph *graphctx, AVClass *log_ctx)

Check for the validity of graph.

int ff_avfilter_graph_config_links (AVFilterGraph *graphctx, AVClass *log_ctx)

Configure all the links of graphctx.

int ff_avfilter_graph_config_formats (AVFilterGraph *graphctx, AVClass *log_ctx)

Configure the formats of all the links in the graph.

void ff_avfilter_graph_update_heap (AVFilterGraph *graph, AVFilterLink *link)

Update the position of a link in the age heap.

void ff_avfilter_default_free_buffer (AVFilterBuffer *buf)

default handler for freeing audio/video buffer when there are no references left

int ff_fmt_is_in (int fmt, const int *fmts)

Tell is a format is contained in the provided list terminated by -1.

int * ff_copy_int_list (const int *const list)

Return a copy of a list of integers terminated by -1, or NULL in case of copy failure.

int64_t * ff_copy_int64_list (const int64_t *const list)

Return a copy of a list of 64-bit integers, or NULL in case of copy failure.

int ff_parse_pixel_format (enum PixelFormat *ret, const char *arg, void *log_ctx)

Parse a pixel format.

int ff_parse_sample_rate (int *ret, const char *arg, void *log_ctx)

Parse a sample rate.

int ff_parse_time_base (AVRational *ret, const char *arg, void *log_ctx)

Parse a time base.

int ff_parse_sample_format (int *ret, const char *arg, void *log_ctx)

Parse a sample format name or a corresponding integer representation.

int ff_parse_channel_layout (int64_t *ret, const char *arg, void *log_ctx)

Parse a channel layout or a corresponding integer representation.

static void ff_null_start_frame_keep_ref (AVFilterLink *inlink, AVFilterBufferRef *picref)

Pass video frame along and keep an internal reference for later use.

void ff_update_link_current_pts (AVFilterLink *link, int64_t pts)

void ff_free_pool (AVFilterPool *pool)

void ff_command_queue_pop (AVFilterContext *filter)

void ff_dlog_link (void *ctx, AVFilterLink *link, int end)

Detailed Description

internal API functions

Definition in file internal.h.

Define Documentation

#define FF_DPRINTF_START	(	ctx,
		func		)	av_dlog(NULL, "%-16s: ", #func)

Definition at line 159 of file internal.h.

Referenced by avfilter_draw_slice(), avfilter_get_video_buffer(), avfilter_request_frame(), avfilter_start_frame(), and ff_filter_samples().

#define POOL_SIZE 32

Definition at line 31 of file internal.h.

Referenced by ff_default_get_video_buffer(), ff_free_pool(), and store_in_pool().

Function Documentation

void ff_avfilter_default_free_buffer ( AVFilterBuffer * buf )

default handler for freeing audio/video buffer when there are no references left

Definition at line 31 of file buffer.c.

Referenced by avfilter_get_audio_buffer_ref_from_arrays(), and avfilter_get_video_buffer_ref_from_arrays().

int ff_avfilter_graph_check_validity	(	AVFilterGraph *	graphctx,
		AVClass *	log_ctx
	)

Check for the validity of graph.

A graph is considered valid if all its input and output pads are connected.

Returns:: 0 in case of success, a negative value otherwise

Definition at line 105 of file avfiltergraph.c.

Referenced by avfilter_graph_config().

int ff_avfilter_graph_config_formats	(	AVFilterGraph *	graphctx,
		AVClass *	log_ctx
	)

Configure the formats of all the links in the graph.

Definition at line 691 of file avfiltergraph.c.

Referenced by avfilter_graph_config().

int ff_avfilter_graph_config_links	(	AVFilterGraph *	graphctx,
		AVClass *	log_ctx
	)

Configure all the links of graphctx.

Returns:: 0 in case of success, a negative value otherwise

Definition at line 135 of file avfiltergraph.c.

Referenced by avfilter_graph_config().

void ff_avfilter_graph_update_heap	(	AVFilterGraph *	graph,
		AVFilterLink *	link
	)

Update the position of a link in the age heap.

Definition at line 871 of file avfiltergraph.c.

Referenced by ff_update_link_current_pts().

void ff_command_queue_pop ( AVFilterContext * filter )

Definition at line 50 of file avfilter.c.

Referenced by avfilter_free(), and avfilter_start_frame().

int64_t* ff_copy_int64_list ( const int64_t *const list )

Return a copy of a list of 64-bit integers, or NULL in case of copy failure.

Definition at line 192 of file formats.c.

int* ff_copy_int_list ( const int *const list )

Return a copy of a list of integers terminated by -1, or NULL in case of copy failure.

Definition at line 185 of file formats.c.

void ff_dlog_link	(	void *	ctx,
		AVFilterLink *	link,
		int	end
	)

Definition at line 246 of file avfilter.c.

Referenced by avfilter_draw_slice(), avfilter_get_video_buffer(), avfilter_request_frame(), avfilter_start_frame(), and ff_filter_samples().

int ff_fmt_is_in	(	int	fmt,
		const int *	fmts
	)

Tell is a format is contained in the provided list terminated by -1.

Definition at line 162 of file formats.c.

Referenced by config_input(), config_input_main(), config_input_overlay(), config_out_props(), and config_props().

void ff_free_pool ( AVFilterPool * pool )

Definition at line 79 of file buffer.c.

Referenced by avfilter_link_free(), and store_in_pool().

static void ff_null_start_frame_keep_ref	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	picref
	)			`[inline, static]`

Pass video frame along and keep an internal reference for later use.

Definition at line 147 of file internal.h.

int ff_parse_channel_layout	(	int64_t *	ret,
		const char *	arg,
		void *	log_ctx
	)

Parse a channel layout or a corresponding integer representation.

Parameters:

	ret	64bit integer pointer to where the value should be written.
	arg	string to parse
	log_ctx	log context

Returns:: 0 in case of success, a negative AVERROR code on error

Definition at line 522 of file formats.c.

Referenced by init().

int ff_parse_pixel_format	(	enum PixelFormat *	ret,
		const char *	arg,
		void *	log_ctx
	)

Parse a pixel format.

Parameters:

	ret	pixel format pointer to where the value should be written
	arg	string to parse
	log_ctx	log context

Returns:: 0 in case of success, a negative AVERROR code on error

Definition at line 469 of file formats.c.

Referenced by init(), and init_video().

int ff_parse_sample_format	(	int *	ret,
		const char *	arg,
		void *	log_ctx
	)

Parse a sample format name or a corresponding integer representation.

Parameters:

	ret	integer pointer to where the value should be written
	arg	string to parse
	log_ctx	log context

Returns:: 0 in case of success, a negative AVERROR code on error

Definition at line 484 of file formats.c.

Referenced by init().

int ff_parse_sample_rate	(	int *	ret,
		const char *	arg,
		void *	log_ctx
	)

Parse a sample rate.

Parameters:

	ret	unsigned integer pointer to where the value should be written
	arg	string to parse
	log_ctx	log context

Returns:: 0 in case of success, a negative AVERROR code on error

Definition at line 510 of file formats.c.

Referenced by init().

int ff_parse_time_base	(	AVRational *	ret,
		const char *	arg,
		void *	log_ctx
	)

Parse a time base.

Parameters:

	ret	unsigned AVRational pointer to where the value should be written
	arg	string to parse
	log_ctx	log context

Returns:: 0 in case of success, a negative AVERROR code on error

Definition at line 499 of file formats.c.

void ff_update_link_current_pts	(	AVFilterLink *	link,
		int64_t	pts
	)

Definition at line 299 of file avfilter.c.

Referenced by avfilter_start_frame(), and ff_filter_samples().


Data Structures
struct	AVFilterPool
struct	AVFilterCommand
Defines
#define	POOL_SIZE 32
#define	FF_DPRINTF_START(ctx, func) av_dlog(NULL, "%-16s: ", #func)
Functions
int	ff_avfilter_graph_check_validity (AVFilterGraph graphctx, AVClass log_ctx)
	Check for the validity of graph.
int	ff_avfilter_graph_config_links (AVFilterGraph graphctx, AVClass log_ctx)
	Configure all the links of graphctx.
int	ff_avfilter_graph_config_formats (AVFilterGraph graphctx, AVClass log_ctx)
	Configure the formats of all the links in the graph.
void	ff_avfilter_graph_update_heap (AVFilterGraph graph, AVFilterLink link)
	Update the position of a link in the age heap.
void	ff_avfilter_default_free_buffer (AVFilterBuffer *buf)
	default handler for freeing audio/video buffer when there are no references left
int	ff_fmt_is_in (int fmt, const int *fmts)
	Tell is a format is contained in the provided list terminated by -1.
int *	ff_copy_int_list (const int *const list)
	Return a copy of a list of integers terminated by -1, or NULL in case of copy failure.
int64_t *	ff_copy_int64_list (const int64_t *const list)
	Return a copy of a list of 64-bit integers, or NULL in case of copy failure.
int	ff_parse_pixel_format (enum PixelFormat ret, const char arg, void *log_ctx)
	Parse a pixel format.
int	ff_parse_sample_rate (int ret, const char arg, void *log_ctx)
	Parse a sample rate.
int	ff_parse_time_base (AVRational ret, const char arg, void *log_ctx)
	Parse a time base.
int	ff_parse_sample_format (int ret, const char arg, void *log_ctx)
	Parse a sample format name or a corresponding integer representation.
int	ff_parse_channel_layout (int64_t ret, const char arg, void *log_ctx)
	Parse a channel layout or a corresponding integer representation.
static void	ff_null_start_frame_keep_ref (AVFilterLink inlink, AVFilterBufferRef picref)
	Pass video frame along and keep an internal reference for later use.
void	ff_update_link_current_pts (AVFilterLink *link, int64_t pts)
void	ff_free_pool (AVFilterPool *pool)
void	ff_command_queue_pop (AVFilterContext *filter)
void	ff_dlog_link (void ctx, AVFilterLink link, int end)