libavfilter/avf_concat.c File Reference

concat audio-video filter More...

#include "libavutil/audioconvert.h"
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "bufferqueue.h"
#include "internal.h"
#include "video.h"
#include "audio.h"

Go to the source code of this file.

Data Structures
struct	ConcatContext
struct	ConcatContext::ConcatContext::concat_in
Defines
#define	FF_BUFQUEUE_SIZE   256
#define	TYPE_ALL   2
#define	OFFSET(x)   offsetof(ConcatContext, x)
#define	A   AV_OPT_FLAG_AUDIO_PARAM
#define	F   AV_OPT_FLAG_FILTERING_PARAM
#define	V   AV_OPT_FLAG_VIDEO_PARAM
Functions
	AVFILTER_DEFINE_CLASS (concat)
static int	query_formats (AVFilterContext *ctx)
static int	config_output (AVFilterLink *outlink)
static void	push_frame (AVFilterContext *ctx, unsigned in_no, AVFilterBufferRef *buf)
static void	process_frame (AVFilterLink *inlink, AVFilterBufferRef *buf)
static AVFilterBufferRef *	get_video_buffer (AVFilterLink *inlink, int perms, int w, int h)
static AVFilterBufferRef *	get_audio_buffer (AVFilterLink *inlink, int perms, int nb_samples)
static int	start_frame (AVFilterLink *inlink, AVFilterBufferRef *buf)
static int	draw_slice (AVFilterLink *inlink, int y, int h, int dir)
static int	end_frame (AVFilterLink *inlink)
static int	filter_samples (AVFilterLink *inlink, AVFilterBufferRef *buf)
static void	close_input (AVFilterContext *ctx, unsigned in_no)
static void	find_next_delta_ts (AVFilterContext *ctx)
static void	send_silence (AVFilterContext *ctx, unsigned in_no, unsigned out_no)
static void	flush_segment (AVFilterContext *ctx)
static int	request_frame (AVFilterLink *outlink)
static av_cold int	init (AVFilterContext *ctx, const char *args)
static av_cold void	uninit (AVFilterContext *ctx)
Variables
static const AVOption	concat_options []
AVFilter	avfilter_avf_concat

---

Detailed Description

concat audio-video filter

Definition in file avf_concat.c.

---

Define Documentation

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 54 of file avf_concat.c.

#define F   AV_OPT_FLAG_FILTERING_PARAM

Definition at line 55 of file avf_concat.c.

#define FF_BUFQUEUE_SIZE   256

Definition at line 30 of file avf_concat.c.

Referenced by ff_bufqueue_add(), and ff_bufqueue_get().

#define OFFSET

(

x

)

offsetof(ConcatContext, x)

Definition at line 53 of file avf_concat.c.

#define TYPE_ALL   2

Definition at line 36 of file avf_concat.c.

Referenced by init(), and query_formats().

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 56 of file avf_concat.c.

---

Function Documentation

AVFILTER_DEFINE_CLASS

(

concat

)

static void close_input	(	AVFilterContext *	ctx,
		unsigned	in_no
	)			[static]

Definition at line 248 of file avf_concat.c.

Referenced by request_frame().

static int config_output

(

AVFilterLink *

outlink

)

[static]

Definition at line 116 of file avf_concat.c.

static int draw_slice	(	AVFilterLink *	inlink,
		int	y,
		int	h,
		int	dir
	)			[static]

Definition at line 230 of file avf_concat.c.

Referenced by ff_draw_slice(), and init().

static int end_frame

(

AVFilterLink *

inlink

)

[static]

Definition at line 235 of file avf_concat.c.

static int filter_samples	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	buf
	)			[static]

Definition at line 242 of file avf_concat.c.

static void find_next_delta_ts

(

AVFilterContext *

ctx

)

[static]

Definition at line 258 of file avf_concat.c.

Referenced by flush_segment().

static void flush_segment

(

AVFilterContext *

ctx

)

[static]

Definition at line 301 of file avf_concat.c.

Referenced by request_frame().

static AVFilterBufferRef* get_audio_buffer	(	AVFilterLink *	inlink,
		int	perms,
		int	nb_samples
	)			[static]

Definition at line 215 of file avf_concat.c.

Referenced by init().

static AVFilterBufferRef* get_video_buffer	(	AVFilterLink *	inlink,
		int	perms,
		int	w,
		int	h
	)			[static]

Definition at line 205 of file avf_concat.c.

Referenced by ff_get_video_buffer(), and init().

static av_cold int init	(	AVFilterContext *	ctx,
		const char *	args
	)			[static]

Definition at line 363 of file avf_concat.c.

static void process_frame	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	buf
	)			[static]

Definition at line 188 of file avf_concat.c.

static void push_frame	(	AVFilterContext *	ctx,
		unsigned	in_no,
		AVFilterBufferRef *	buf
	)			[static]

Definition at line 153 of file avf_concat.c.

Referenced by decode_thread(), filter_samples(), flush_segment(), plot_spectrum_column(), process_frame(), and request_frame().

static int query_formats

(

AVFilterContext *

ctx

)

[static]

Definition at line 72 of file avf_concat.c.

static int request_frame

(

AVFilterLink *

outlink

)

[static]

Definition at line 327 of file avf_concat.c.

static void send_silence	(	AVFilterContext *	ctx,
		unsigned	in_no,
		unsigned	out_no
	)			[static]

Definition at line 271 of file avf_concat.c.

Referenced by flush_segment().

static int start_frame	(	AVFilterLink *	inlink,
		AVFilterBufferRef *	buf
	)			[static]

Definition at line 225 of file avf_concat.c.

static av_cold void uninit

(

AVFilterContext *

ctx

)

[static]

Definition at line 422 of file avf_concat.c.

---

Variable Documentation

AVFilter avfilter_avf_concat

Initial value:

 {
    .name          = "concat",
    .description   = NULL_IF_CONFIG_SMALL("Concatenate audio and video streams."),
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .priv_size     = sizeof(ConcatContext),
    .inputs        = (const AVFilterPad[]) { { .name = NULL } },
    .outputs       = (const AVFilterPad[]) { { .name = NULL } },
    .priv_class    = &concat_class,
}

Definition at line 436 of file avf_concat.c.

const AVOption concat_options[] [static]

Initial value:

 {
    { "n", "specify the number of segments", OFFSET(nb_segments),
      AV_OPT_TYPE_INT, { .i64 = 2 }, 2, INT_MAX, V|A|F},
    { "v", "specify the number of video streams",
      OFFSET(nb_streams[AVMEDIA_TYPE_VIDEO]),
      AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, V|F },
    { "a", "specify the number of audio streams",
      OFFSET(nb_streams[AVMEDIA_TYPE_AUDIO]),
      AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, A|F},
    { 0 }
}

Definition at line 58 of file avf_concat.c.