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avf_concat.c File Reference

concat audio-video filter More...

#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/channel_layout.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::concat_in
 

Macros

#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 int push_frame (AVFilterContext *ctx, unsigned in_no, AVFrame *buf)
 
static int process_frame (AVFilterLink *inlink, AVFrame *buf)
 
static AVFrameget_video_buffer (AVFilterLink *inlink, int w, int h)
 
static AVFrameget_audio_buffer (AVFilterLink *inlink, int nb_samples)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *buf)
 
static void close_input (AVFilterContext *ctx, unsigned in_no)
 
static void find_next_delta_ts (AVFilterContext *ctx, int64_t *seg_delta)
 
static int send_silence (AVFilterContext *ctx, unsigned in_no, unsigned out_no, int64_t seg_delta)
 
static int flush_segment (AVFilterContext *ctx)
 
static int request_frame (AVFilterLink *outlink)
 
static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption concat_options []
 
AVFilter ff_avf_concat
 

Detailed Description

concat audio-video filter

Definition in file avf_concat.c.

Macro Definition Documentation

#define FF_BUFQUEUE_SIZE   256

Definition at line 31 of file avf_concat.c.

#define TYPE_ALL   2

Definition at line 37 of file avf_concat.c.

Referenced by init(), and query_formats().

#define OFFSET (   x)    offsetof(ConcatContext, x)

Definition at line 55 of file avf_concat.c.

#define A   AV_OPT_FLAG_AUDIO_PARAM

Definition at line 56 of file avf_concat.c.

Definition at line 57 of file avf_concat.c.

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 58 of file avf_concat.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( concat  )
static int query_formats ( AVFilterContext ctx)
static

Definition at line 77 of file avf_concat.c.

static int config_output ( AVFilterLink outlink)
static

Definition at line 122 of file avf_concat.c.

Referenced by init().

static int push_frame ( AVFilterContext ctx,
unsigned  in_no,
AVFrame buf 
)
static

Definition at line 163 of file avf_concat.c.

Referenced by flush_segment(), and process_frame().

static int process_frame ( AVFilterLink inlink,
AVFrame buf 
)
static

Definition at line 188 of file avf_concat.c.

Referenced by filter_frame().

static AVFrame* get_video_buffer ( AVFilterLink inlink,
int  w,
int  h 
)
static

Definition at line 206 of file avf_concat.c.

Referenced by ff_get_video_buffer(), and init().

static AVFrame* get_audio_buffer ( AVFilterLink inlink,
int  nb_samples 
)
static

Definition at line 215 of file avf_concat.c.

Referenced by init().

static int filter_frame ( AVFilterLink inlink,
AVFrame buf 
)
static

Definition at line 224 of file avf_concat.c.

Referenced by init().

static void close_input ( AVFilterContext ctx,
unsigned  in_no 
)
static

Definition at line 229 of file avf_concat.c.

Referenced by request_frame().

static void find_next_delta_ts ( AVFilterContext ctx,
int64_t *  seg_delta 
)
static

Definition at line 239 of file avf_concat.c.

Referenced by flush_segment().

static int send_silence ( AVFilterContext ctx,
unsigned  in_no,
unsigned  out_no,
int64_t  seg_delta 
)
static

Definition at line 253 of file avf_concat.c.

Referenced by flush_segment().

static int flush_segment ( AVFilterContext ctx)
static

Definition at line 287 of file avf_concat.c.

Referenced by request_frame().

static int request_frame ( AVFilterLink outlink)
static

Definition at line 324 of file avf_concat.c.

Referenced by init().

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 361 of file avf_concat.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 401 of file avf_concat.c.

Variable Documentation

const AVOption concat_options[]
static
Initial value:
= {
{ "n", "specify the number of segments", OFFSET(nb_segments),
AV_OPT_TYPE_INT, { .i64 = 2 }, 1, INT_MAX, V|A|F},
{ "v", "specify the number of video streams",
AV_OPT_TYPE_INT, { .i64 = 1 }, 0, INT_MAX, V|F },
{ "a", "specify the number of audio streams",
AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, A|F},
{ "unsafe", "enable unsafe mode",
OFFSET(unsafe),
AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, V|A|F},
{ NULL }
}
#define NULL
Definition: coverity.c:32
#define V
Definition: avf_concat.c:58
static int nb_streams
Definition: ffprobe.c:254
#define A
Definition: avf_concat.c:56
#define OFFSET(x)
Definition: avf_concat.c:55
#define F
Definition: avf_concat.c:57

Definition at line 60 of file avf_concat.c.

AVFilter ff_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),
.priv_class = &concat_class,
}
#define NULL
Definition: coverity.c:32
static av_cold int init(AVFilterContext *ctx)
Definition: avf_concat.c:361
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
Definition: avfilter.h:105
static av_cold void uninit(AVFilterContext *ctx)
Definition: avf_concat.c:401
#define AVFILTER_FLAG_DYNAMIC_OUTPUTS
The number of the filter outputs is not determined just by AVFilter.outputs.
Definition: avfilter.h:111
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static const AVClass concat_class
Definition: concatdec.c:766
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
static int flags
Definition: cpu.c:47
static int query_formats(AVFilterContext *ctx)
Definition: avf_concat.c:77

Definition at line 415 of file avf_concat.c.