vf_xfade_opencl.c File Reference

#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "opencl.h"
#include "opencl_source.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	XFadeOpenCLContext

Macros
#define	OFFSET(x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Enumerations
enum	XFadeTransitions {   CUSTOM , FADE , WIPELEFT , WIPERIGHT ,   WIPEUP , WIPEDOWN , SLIDELEFT , SLIDERIGHT ,   SLIDEUP , SLIDEDOWN , NB_TRANSITIONS }

Functions
static int	xfade_opencl_load (AVFilterContext *avctx, enum AVPixelFormat main_format, enum AVPixelFormat xfade_format)
static int	xfade_frame (AVFilterContext *avctx, AVFrame *a, AVFrame *b)
static int	xfade_opencl_config_output (AVFilterLink *outlink)
static int	xfade_opencl_activate (AVFilterContext *avctx)
static av_cold void	xfade_opencl_uninit (AVFilterContext *avctx)
static AVFrame *	get_video_buffer (AVFilterLink *inlink, int w, int h)
	AVFILTER_DEFINE_CLASS (xfade_opencl)

Variables
static const AVOption	xfade_opencl_options []
static const AVFilterPad	xfade_opencl_inputs []
static const AVFilterPad	xfade_opencl_outputs []
const FFFilter	ff_vf_xfade_opencl

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(XFadeOpenCLContext, x)

Definition at line 386 of file vf_xfade_opencl.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)

Definition at line 387 of file vf_xfade_opencl.c.

Enumeration Type Documentation

XFadeTransitions

enum XFadeTransitions

Enumerator
CUSTOM
FADE
WIPELEFT
WIPERIGHT
WIPEUP
WIPEDOWN
SLIDELEFT
SLIDERIGHT
SLIDEUP
SLIDEDOWN
NB_TRANSITIONS

Definition at line 29 of file vf_xfade_opencl.c.

Function Documentation

xfade_opencl_load()

static int xfade_opencl_load ( AVFilterContext * avctx, enum AVPixelFormat main_format, enum AVPixelFormat xfade_format )

static

Definition at line 69 of file vf_xfade_opencl.c.

Referenced by xfade_frame().

xfade_frame()

static int xfade_frame ( AVFilterContext * avctx, AVFrame * a, AVFrame * b )

static

Definition at line 137 of file vf_xfade_opencl.c.

Referenced by xfade_opencl_activate().

xfade_opencl_config_output()

static int xfade_opencl_config_output ( AVFilterLink * outlink )

static

Definition at line 212 of file vf_xfade_opencl.c.

xfade_opencl_activate()

static int xfade_opencl_activate ( AVFilterContext * avctx )

static

Definition at line 259 of file vf_xfade_opencl.c.

xfade_opencl_uninit()

static av_cold void xfade_opencl_uninit ( AVFilterContext * avctx )

static

Definition at line 355 of file vf_xfade_opencl.c.

get_video_buffer()

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

static

Definition at line 377 of file vf_xfade_opencl.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

xfade_opencl

)

Variable Documentation

xfade_opencl_options

const AVOption xfade_opencl_options[]

static

Initial value:

= {
    { "transition", "set cross fade transition", OFFSET(transition), AV_OPT_TYPE_INT, {.i64=1}, 0, NB_TRANSITIONS-1, FLAGS, .unit = "transition" },
    {   "custom",    "custom transition",     0, AV_OPT_TYPE_CONST, {.i64=CUSTOM},    0, 0, FLAGS, .unit = "transition" },
    {   "fade",      "fade transition",       0, AV_OPT_TYPE_CONST, {.i64=FADE},      0, 0, FLAGS, .unit = "transition" },
    {   "wipeleft",  "wipe left transition",  0, AV_OPT_TYPE_CONST, {.i64=WIPELEFT},  0, 0, FLAGS, .unit = "transition" },
    {   "wiperight", "wipe right transition", 0, AV_OPT_TYPE_CONST, {.i64=WIPERIGHT}, 0, 0, FLAGS, .unit = "transition" },
    {   "wipeup",    "wipe up transition",    0, AV_OPT_TYPE_CONST, {.i64=WIPEUP},    0, 0, FLAGS, .unit = "transition" },
    {   "wipedown",  "wipe down transition",  0, AV_OPT_TYPE_CONST, {.i64=WIPEDOWN},  0, 0, FLAGS, .unit = "transition" },
    {   "slideleft",  "slide left transition",  0, AV_OPT_TYPE_CONST, {.i64=SLIDELEFT},  0, 0, FLAGS, .unit = "transition" },
    {   "slideright", "slide right transition", 0, AV_OPT_TYPE_CONST, {.i64=SLIDERIGHT}, 0, 0, FLAGS, .unit = "transition" },
    {   "slideup",    "slide up transition",    0, AV_OPT_TYPE_CONST, {.i64=SLIDEUP},    0, 0, FLAGS, .unit = "transition" },
    {   "slidedown",  "slide down transition",  0, AV_OPT_TYPE_CONST, {.i64=SLIDEDOWN},  0, 0, FLAGS, .unit = "transition" },
    { "source", "set OpenCL program source file for custom transition", OFFSET(source_file), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = FLAGS },
    { "kernel", "set kernel name in program file for custom transition", OFFSET(kernel_name), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = FLAGS },
    { "duration", "set cross fade duration", OFFSET(duration), AV_OPT_TYPE_DURATION, {.i64=1000000}, 0, 60000000, FLAGS },
    { "offset",   "set cross fade start relative to first input stream", OFFSET(offset), AV_OPT_TYPE_DURATION, {.i64=0}, INT64_MIN, INT64_MAX, FLAGS },
    { NULL }
}

Definition at line 389 of file vf_xfade_opencl.c.

xfade_opencl_inputs

const AVFilterPad xfade_opencl_inputs[]

static

Initial value:

= {
    {
        .name             = "main",
        .type             = AVMEDIA_TYPE_VIDEO,
        .get_buffer.video = get_video_buffer,
        .config_props     = &ff_opencl_filter_config_input,
    },
    {
        .name             = "xfade",
        .type             = AVMEDIA_TYPE_VIDEO,
        .get_buffer.video = get_video_buffer,
        .config_props     = &ff_opencl_filter_config_input,
    },
}

Definition at line 410 of file vf_xfade_opencl.c.

xfade_opencl_outputs

const AVFilterPad xfade_opencl_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = &xfade_opencl_config_output,
    },
}

Definition at line 425 of file vf_xfade_opencl.c.

ff_vf_xfade_opencl

const FFFilter ff_vf_xfade_opencl

Initial value:

= {
    .p.name          = "xfade_opencl",
    .p.description   = NULL_IF_CONFIG_SMALL("Cross fade one video with another video."),
    .p.priv_class    = &xfade_opencl_class,
    .p.flags         = AVFILTER_FLAG_HWDEVICE,
    .priv_size       = sizeof(XFadeOpenCLContext),
    .init            = &ff_opencl_filter_init,
    .uninit          = &xfade_opencl_uninit,
    .activate        = &xfade_opencl_activate,
    FILTER_INPUTS(xfade_opencl_inputs),
    FILTER_OUTPUTS(xfade_opencl_outputs),
    FILTER_SINGLE_PIXFMT(AV_PIX_FMT_OPENCL),
    .flags_internal  = FF_FILTER_FLAG_HWFRAME_AWARE,
}

Definition at line 433 of file vf_xfade_opencl.c.