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 "framerate.h"

Go to the source code of this file.

Data Structures
struct	ThreadData

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	filter_frame (AVFilterLink *inlink, AVFrame *inpicref)
static int	config_output (AVFilterLink *outlink)
static int	request_frame (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

DEBUG

#define DEBUG

Definition at line 29 of file vf_framerate.c.

Referenced by audio_decode_frame().

OFFSET

#define OFFSET

(

x

)

offsetof(FrameRateContext, x)

Definition at line 43 of file vf_framerate.c.

V

#define V   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 44 of file vf_framerate.c.

F

#define F   AV_OPT_FLAG_FILTERING_PARAM

Definition at line 45 of file vf_framerate.c.

FRAMERATE_FLAG_SCD

#define FRAMERATE_FLAG_SCD   01

Definition at line 46 of file vf_framerate.c.

Referenced by blend_frames().

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

framerate

)

sad_8x8_16()

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 64 of file vf_framerate.c.

Referenced by scene_sad16().

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 79 of file vf_framerate.c.

Referenced by get_scene_score().

scene_sad8()

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 94 of file vf_framerate.c.

Referenced by get_scene_score().

get_scene_score()

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

static

Definition at line 110 of file vf_framerate.c.

Referenced by blend_frames().

filter_slice()

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

static

Definition at line 142 of file vf_framerate.c.

Referenced by blend_frames().

blend_frames()

static int blend_frames ( AVFilterContext *  ctx, int  interpolate  )

static

Definition at line 175 of file vf_framerate.c.

Referenced by process_work_frame().

process_work_frame()

static int process_work_frame ( AVFilterContext *  ctx )

static

Definition at line 210 of file vf_framerate.c.

Referenced by filter_frame(), and request_frame().

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 258 of file vf_framerate.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 265 of file vf_framerate.c.

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 272 of file vf_framerate.c.

blend_frames_c()

static void blend_frames_c ( BLEND_FUNC_PARAMS  )

static

Definition at line 293 of file vf_framerate.c.

Referenced by ff_framerate_init().

blend_frames16_c()

static void blend_frames16_c ( BLEND_FUNC_PARAMS  )

static

Definition at line 305 of file vf_framerate.c.

Referenced by ff_framerate_init().

ff_framerate_init()

void ff_framerate_init

(

FrameRateContext *

s

)

Definition at line 324 of file vf_framerate.c.

Referenced by config_input().

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 337 of file vf_framerate.c.

filter_frame()

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  inpicref  )

static

Definition at line 363 of file vf_framerate.c.

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 412 of file vf_framerate.c.

request_frame()

static int request_frame ( AVFilterLink *  outlink )

static

Definition at line 457 of file vf_framerate.c.

Variable Documentation

framerate_options

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}
}

Definition at line 48 of file vf_framerate.c.

framerate_inputs

const AVFilterPad framerate_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 478 of file vf_framerate.c.

framerate_outputs

const AVFilterPad framerate_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .request_frame = request_frame,
        .config_props  = config_output,
    },
    { NULL }
}

Definition at line 488 of file vf_framerate.c.

ff_vf_framerate

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,
}

Definition at line 498 of file vf_framerate.c.