FFmpeg
Data Structures | Macros | Functions | Variables
vf_framerate.c File Reference

filter for upsampling or downsampling a progressive source More...

#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
#include "filters.h"
#include "framerate.h"
#include "scene_sad.h"

Go to the source code of this file.

Data Structures

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

Macros

#define DEBUG
 
#define OFFSET(x)   offsetof(FrameRateContext, x)
 
#define V   AV_OPT_FLAG_VIDEO_PARAM
 
#define F   AV_OPT_FLAG_FILTERING_PARAM
 
#define FRAMERATE_FLAG_SCD   01
 

Functions

 AVFILTER_DEFINE_CLASS (framerate)
 
static double get_scene_score (AVFilterContext *ctx, AVFrame *crnt, AVFrame *next)
 
static int filter_slice (AVFilterContext *ctx, void *arg, int job, int nb_jobs)
 
static int blend_frames (AVFilterContext *ctx, int interpolate)
 
static int process_work_frame (AVFilterContext *ctx)
 
static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int query_formats (AVFilterContext *ctx)
 
static void blend_frames_c (BLEND_FUNC_PARAMS)
 
static void blend_frames16_c (BLEND_FUNC_PARAMS)
 
void ff_framerate_init (FrameRateContext *s)
 
static int config_input (AVFilterLink *inlink)
 
static int activate (AVFilterContext *ctx)
 
static int config_output (AVFilterLink *outlink)
 

Variables

static const AVOption framerate_options []
 
static const AVFilterPad framerate_inputs []
 
static const AVFilterPad framerate_outputs []
 
AVFilter ff_vf_framerate
 

Detailed Description

filter for upsampling or downsampling a progressive source

Definition in file vf_framerate.c.

Macro Definition Documentation

#define DEBUG

Definition at line 29 of file vf_framerate.c.

Referenced by audio_decode_frame().

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

Definition at line 44 of file vf_framerate.c.

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 45 of file vf_framerate.c.

Definition at line 46 of file vf_framerate.c.

#define FRAMERATE_FLAG_SCD   01

Definition at line 47 of file vf_framerate.c.

Referenced by blend_frames().

Function Documentation

AVFILTER_DEFINE_CLASS ( framerate  )
static double get_scene_score ( AVFilterContext ctx,
AVFrame crnt,
AVFrame next 
)
static

Definition at line 65 of file vf_framerate.c.

Referenced by blend_frames().

static int filter_slice ( AVFilterContext ctx,
void arg,
int  job,
int  nb_jobs 
)
static

Definition at line 94 of file vf_framerate.c.

Referenced by blend_frames().

static int blend_frames ( AVFilterContext ctx,
int  interpolate 
)
static

Definition at line 127 of file vf_framerate.c.

Referenced by process_work_frame().

static int process_work_frame ( AVFilterContext ctx)
static

Definition at line 162 of file vf_framerate.c.

Referenced by activate().

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 210 of file vf_framerate.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 217 of file vf_framerate.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 224 of file vf_framerate.c.

static void blend_frames_c ( BLEND_FUNC_PARAMS  )
static

Definition at line 245 of file vf_framerate.c.

Referenced by ff_framerate_init().

static void blend_frames16_c ( BLEND_FUNC_PARAMS  )
static

Definition at line 257 of file vf_framerate.c.

Referenced by ff_framerate_init().

void ff_framerate_init ( FrameRateContext s)

Definition at line 276 of file vf_framerate.c.

Referenced by config_input().

static int config_input ( AVFilterLink inlink)
static

Definition at line 289 of file vf_framerate.c.

static int activate ( AVFilterContext ctx)
static

Definition at line 315 of file vf_framerate.c.

static int config_output ( AVFilterLink outlink)
static

Definition at line 392 of file vf_framerate.c.

Variable Documentation

const AVOption framerate_options[]
static
Initial value:
= {
{"fps", "required output frames per second rate", OFFSET(dest_frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="50"}, 0, INT_MAX, V|F },
{"interp_start", "point to start linear interpolation", OFFSET(interp_start), AV_OPT_TYPE_INT, {.i64=15}, 0, 255, V|F },
{"interp_end", "point to end linear interpolation", OFFSET(interp_end), AV_OPT_TYPE_INT, {.i64=240}, 0, 255, V|F },
{"scene", "scene change level", OFFSET(scene_score), AV_OPT_TYPE_DOUBLE, {.dbl=8.2}, 0, INT_MAX, V|F },
{"flags", "set flags", OFFSET(flags), AV_OPT_TYPE_FLAGS, {.i64=1}, 0, INT_MAX, V|F, "flags" },
{"scene_change_detect", "enable scene change detection", 0, AV_OPT_TYPE_CONST, {.i64=FRAMERATE_FLAG_SCD}, INT_MIN, INT_MAX, V|F, "flags" },
{"scd", "enable scene change detection", 0, AV_OPT_TYPE_CONST, {.i64=FRAMERATE_FLAG_SCD}, INT_MIN, INT_MAX, V|F, "flags" },
{NULL}
}
#define NULL
Definition: coverity.c:32
#define FRAMERATE_FLAG_SCD
Definition: vf_framerate.c:47
offset must point to AVRational
Definition: opt.h:236
#define flags(name, subs,...)
Definition: cbs_av1.c:561
#define F
Definition: vf_framerate.c:46
#define V
Definition: vf_framerate.c:45
#define OFFSET(x)
Definition: vf_framerate.c:44

Definition at line 49 of file vf_framerate.c.

const AVFilterPad framerate_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int config_input(AVFilterLink *inlink)
Definition: vf_framerate.c:289

Definition at line 437 of file vf_framerate.c.

const AVFilterPad framerate_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_framerate.c:392

Definition at line 446 of file vf_framerate.c.

AVFilter ff_vf_framerate
Initial value:
= {
.name = "framerate",
.description = NULL_IF_CONFIG_SMALL("Upsamples or downsamples progressive source between specified frame rates."),
.priv_size = sizeof(FrameRateContext),
.priv_class = &framerate_class,
.init = init,
}
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_framerate.c:217
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
static const AVFilterPad framerate_outputs[]
Definition: vf_framerate.c:446
static int query_formats(AVFilterContext *ctx)
Definition: vf_framerate.c:224
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
static av_cold int init(AVFilterContext *ctx)
Definition: vf_framerate.c:210
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static const AVFilterPad framerate_inputs[]
Definition: vf_framerate.c:437
static int activate(AVFilterContext *ctx)
Definition: vf_framerate.c:315

Definition at line 455 of file vf_framerate.c.