FFmpeg
Data Structures | Macros | Functions | Variables
vf_mix.c File Reference
#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "framesync.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  MixContext
 
struct  ThreadData
 Used for passing data between threads. More...
 

Macros

#define OFFSET(x)   offsetof(MixContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
 

Functions

static int query_formats (AVFilterContext *ctx)
 
static av_cold int init (AVFilterContext *ctx)
 
static int mix_frames (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int process_frame (FFFrameSync *fs)
 
static int config_output (AVFilterLink *outlink)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int activate (AVFilterContext *ctx)
 

Variables

static const AVOption mix_options []
 
static const AVFilterPad outputs []
 

Macro Definition Documentation

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

Definition at line 304 of file vf_mix.c.

Definition at line 305 of file vf_mix.c.

Function Documentation

static int query_formats ( AVFilterContext ctx)
static

Definition at line 56 of file vf_mix.c.

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 73 of file vf_mix.c.

static int mix_frames ( AVFilterContext ctx,
void arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 132 of file vf_mix.c.

Referenced by process_frame().

static int process_frame ( FFFrameSync fs)
static

Definition at line 189 of file vf_mix.c.

Referenced by config_output().

static int config_output ( AVFilterLink outlink)
static

Definition at line 216 of file vf_mix.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 280 of file vf_mix.c.

static int activate ( AVFilterContext ctx)
static

Definition at line 298 of file vf_mix.c.

Variable Documentation

const AVOption mix_options[]
static
Initial value:
= {
{ "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=2}, 2, INT_MAX, .flags = FLAGS },
{ "weights", "set weight for each input", OFFSET(weights_str), AV_OPT_TYPE_STRING, {.str="1 1"}, 0, 0, .flags = FLAGS },
{ "scale", "set scale", OFFSET(scale), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, INT16_MAX, .flags = FLAGS },
{ "duration", "how to determine end of stream", OFFSET(duration), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, .flags = FLAGS, "duration" },
{ "longest", "Duration of longest input", 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "duration" },
{ "shortest", "Duration of shortest input", 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "duration" },
{ "first", "Duration of first input", 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "duration" },
{ NULL },
}
#define NULL
Definition: coverity.c:32
#define FLAGS
Definition: vf_mix.c:305
int64_t duration
Definition: movenc.c:63
#define OFFSET(x)
Definition: vf_mix.c:304

Definition at line 307 of file vf_mix.c.

const AVFilterPad outputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_output,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int config_output(AVFilterLink *outlink)
Definition: vf_mix.c:216

Definition at line 318 of file vf_mix.c.