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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 "libavutil/pixelutils.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
#include "filters.h"
#include "framerate.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 av_always_inline int64_t sad_8x8_16 (const uint16_t *src1, ptrdiff_t stride1, const uint16_t *src2, ptrdiff_t stride2)
 
static int64_t scene_sad16 (FrameRateContext *s, const uint16_t *p1, int p1_linesize, const uint16_t *p2, int p2_linesize, const int width, const int height)
 
static int64_t scene_sad8 (FrameRateContext *s, uint8_t *p1, int p1_linesize, uint8_t *p2, int p2_linesize, const int width, const int height)
 
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.

#define F   AV_OPT_FLAG_FILTERING_PARAM

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 av_always_inline int64_t sad_8x8_16 ( const uint16_t *  src1,
ptrdiff_t  stride1,
const uint16_t *  src2,
ptrdiff_t  stride2 
)
static

Definition at line 65 of file vf_framerate.c.

Referenced by scene_sad16().

static int64_t scene_sad16 ( FrameRateContext *  s,
const uint16_t *  p1,
int  p1_linesize,
const uint16_t *  p2,
int  p2_linesize,
const int  width,
const int  height 
)
static

Definition at line 80 of file vf_framerate.c.

Referenced by get_scene_score().

static int64_t scene_sad8 ( FrameRateContext *  s,
uint8_t *  p1,
int  p1_linesize,
uint8_t *  p2,
int  p2_linesize,
const int  width,
const int  height 
)
static

Definition at line 95 of file vf_framerate.c.

Referenced by get_scene_score().

static double get_scene_score ( AVFilterContext *  ctx,
AVFrame *  crnt,
AVFrame *  next 
)
static

Definition at line 111 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 143 of file vf_framerate.c.

Referenced by blend_frames().

static int blend_frames ( AVFilterContext *  ctx,
int  interpolate 
)
static

Definition at line 176 of file vf_framerate.c.

Referenced by process_work_frame().

static int process_work_frame ( AVFilterContext *  ctx)
static

Definition at line 211 of file vf_framerate.c.

Referenced by activate().

static av_cold int init ( AVFilterContext *  ctx)
static

Definition at line 259 of file vf_framerate.c.

static av_cold void uninit ( AVFilterContext *  ctx)
static

Definition at line 266 of file vf_framerate.c.

static int query_formats ( AVFilterContext *  ctx)
static

Definition at line 273 of file vf_framerate.c.

static void blend_frames_c ( BLEND_FUNC_PARAMS  )
static

Definition at line 294 of file vf_framerate.c.

Referenced by ff_framerate_init().

static void blend_frames16_c ( BLEND_FUNC_PARAMS  )
static

Definition at line 306 of file vf_framerate.c.

Referenced by ff_framerate_init().

void ff_framerate_init ( FrameRateContext *  s)

Definition at line 325 of file vf_framerate.c.

Referenced by config_input().

static int config_input ( AVFilterLink *  inlink)
static

Definition at line 338 of file vf_framerate.c.

static int activate ( AVFilterContext *  ctx)
static

Definition at line 364 of file vf_framerate.c.

static int config_output ( AVFilterLink *  outlink)
static

Definition at line 441 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}
}
NULL
#define NULL
Definition: coverity.c:32
AV_OPT_TYPE_INT
Definition: opt.h:223
AV_OPT_TYPE_FLAGS
Definition: opt.h:222
AV_OPT_TYPE_CONST
Definition: opt.h:232
FRAMERATE_FLAG_SCD
#define FRAMERATE_FLAG_SCD
Definition: vf_framerate.c:47
AV_OPT_TYPE_DOUBLE
Definition: opt.h:225
AV_OPT_TYPE_VIDEO_RATE
offset must point to AVRational
Definition: opt.h:236
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:596
F
#define F
Definition: vf_framerate.c:46
V
#define V
Definition: vf_framerate.c:45
OFFSET
#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",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
},
{ NULL }
}
NULL
#define NULL
Definition: coverity.c:32
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_framerate.c:338
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201

Definition at line 486 of file vf_framerate.c.

const AVFilterPad framerate_outputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
{ NULL }
}
NULL
#define NULL
Definition: coverity.c:32
AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_framerate.c:441

Definition at line 495 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,
.uninit = uninit,
.query_formats = query_formats,
.inputs = framerate_inputs,
.outputs = framerate_outputs,
.flags = AVFILTER_FLAG_SLICE_THREADS,
.activate = activate,
}
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_framerate.c:266
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
inputs
static const AVFilterPad inputs[]
Definition: af_acontrast.c:193
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
framerate_outputs
static const AVFilterPad framerate_outputs[]
Definition: vf_framerate.c:495
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_framerate.c:273
init
static av_cold int init(AVFilterContext *ctx)
Definition: vf_framerate.c:259
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:596
framerate_inputs
static const AVFilterPad framerate_inputs[]
Definition: vf_framerate.c:486
activate
static int activate(AVFilterContext *ctx)
Definition: vf_framerate.c:364

Definition at line 504 of file vf_framerate.c.

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