bsfgraph.c File Reference

#include "config.h"
#include <stddef.h>
#include <string.h>
#include "libavutil/avassert.h"
#include "libavutil/error.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "bsf.h"
#include "bsf_internal.h"

Go to the source code of this file.

Macros
#define	OFFSET(x)   offsetof(AVBitStreamFilterGraph, x)
#define	FLAGS   (AV_OPT_FLAG_BSF_PARAM|AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_VIDEO_PARAM)

Functions
AVBitStreamFilterGraph *	av_bsf_graph_alloc (void)
	Allocate a filter graph. More...
void	ff_bsf_graph_remove_filter (AVBitStreamFilterGraph *graph, AVBitStreamFilterContext *filter)
	Remove a filter from a graph;. More...
AVBitStreamFilterContext *	av_bsf_graph_get_filter (AVBitStreamFilterGraph *graph, const char *name)
	Get a filter instance identified by instance name from graph. More...
void	av_bsf_graph_free (AVBitStreamFilterGraph **graphp)
	Free a graph, destroy its links, and set *graph to NULL. More...
int	av_bsf_graph_create_filter (AVBitStreamFilterContext **filt_ctx, const AVBitStreamFilter *filt, const char *name, AVDictionary **options, AVBitStreamFilterGraph *graph_ctx)
	A convenience wrapper that allocates and initializes a filter in a single step. More...
int	av_bsf_graph_alloc_filter (AVBitStreamFilterContext **filt_ctx, const AVBitStreamFilter *filter, const char *name, AVBitStreamFilterGraph *graph)
	Create a new filter instance in a filter graph. More...
static int	graph_check_validity (AVBitStreamFilterGraph *graph, void *log_ctx)
	Check for the validity of graph. More...
static int	graph_config_links (AVBitStreamFilterGraph *graph, void *log_ctx)
	Configure all the links of graphctx. More...
static int	graph_config_pointers (AVBitStreamFilterGraph *graph, void *log_ctx)
int	av_bsf_graph_config (AVBitStreamFilterGraph *graphctx, void *log_ctx)
	Check validity and configure all the links and formats in the graph. More...
static void	heap_bubble_up (FFBitStreamFilterGraph *graph, BitStreamFilterLinkInternal *li, int index)
static void	heap_bubble_down (FFBitStreamFilterGraph *graph, BitStreamFilterLinkInternal *li, int index)
void	ff_bsf_graph_update_heap (AVBitStreamFilterGraph *graph, BitStreamFilterLinkInternal *li)
int	ff_bsf_graph_run_once (AVBitStreamFilterGraph *graph)
	Run one round of processing on a filter graph. More...
int	av_bsf_graph_source_needs_input (const AVBitStreamFilterGraph *graph)
	Get the index of the source filter in the filtergraph that reported needing input more urgently. More...

Variables
static const AVOption	filtergraph_options []
static const AVClass	filtergraph_class

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(AVBitStreamFilterGraph, x)

Definition at line 32 of file bsfgraph.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_BSF_PARAM|AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 33 of file bsfgraph.c.

Function Documentation

ff_bsf_graph_remove_filter()

void ff_bsf_graph_remove_filter	(	AVBitStreamFilterGraph *	graph,
		AVBitStreamFilterContext *	filter
	)

Remove a filter from a graph;.

Definition at line 64 of file bsfgraph.c.

Referenced by ff_bsf_free().

graph_check_validity()

static int graph_check_validity ( AVBitStreamFilterGraph *  graph, void *  log_ctx  )

static

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 177 of file bsfgraph.c.

Referenced by av_bsf_graph_config().

graph_config_links()

static int graph_config_links ( AVBitStreamFilterGraph *  graph, void *  log_ctx  )

static

Configure all the links of graphctx.

Returns

>= 0 in case of success, a negative value otherwise

Definition at line 215 of file bsfgraph.c.

Referenced by av_bsf_graph_config().

graph_config_pointers()

static int graph_config_pointers ( AVBitStreamFilterGraph *  graph, void *  log_ctx  )

static

Definition at line 232 of file bsfgraph.c.

Referenced by av_bsf_graph_config().

heap_bubble_up()

static void heap_bubble_up ( FFBitStreamFilterGraph *  graph, BitStreamFilterLinkInternal *  li, int  index  )

static

Definition at line 310 of file bsfgraph.c.

Referenced by ff_bsf_graph_update_heap().

heap_bubble_down()

static void heap_bubble_down ( FFBitStreamFilterGraph *  graph, BitStreamFilterLinkInternal *  li, int  index  )

static

Definition at line 329 of file bsfgraph.c.

Referenced by ff_bsf_graph_update_heap().

ff_bsf_graph_update_heap()

void ff_bsf_graph_update_heap	(	AVBitStreamFilterGraph *	graph,
		BitStreamFilterLinkInternal *	li
	)

Definition at line 353 of file bsfgraph.c.

Referenced by update_link_current_pts().

ff_bsf_graph_run_once()

int ff_bsf_graph_run_once

(

AVBitStreamFilterGraph *

graph

)

Run one round of processing on a filter graph.

Definition at line 361 of file bsfgraph.c.

Referenced by av_bsf_sink_get_packet(), and push_packet().

Variable Documentation

filtergraph_options

const AVOption filtergraph_options[]

static

Initial value:

= {
    {"max_buffered_packets"  , "maximum number of buffered packets allowed", OFFSET(max_buffered_packets),
        AV_OPT_TYPE_UINT,   {.i64 = 0}, 0, UINT_MAX, FLAGS },
    { NULL },
}

Definition at line 34 of file bsfgraph.c.

filtergraph_class

const AVClass filtergraph_class

static

Initial value:

= {
    .class_name = "AVBitStreamFilterGraph",
    .item_name  = av_default_item_name,
    .version    = LIBAVUTIL_VERSION_INT,
    .option     = filtergraph_options,
    .category   = AV_CLASS_CATEGORY_BITSTREAM_FILTER,
}

Definition at line 40 of file bsfgraph.c.

Referenced by av_bsf_graph_alloc().