vf_coreimage.m File Reference

Video processing based on Apple's CoreImage API. More...

#import <CoreImage/CoreImage.h>
#import <AppKit/AppKit.h>
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"

Classes
struct	CoreImageContext

Macros
#define	CLAMP_WARNING
#define	SafeCFRelease(ptr)
#define	OFFSET(x)   offsetof(CoreImageContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	GENERATOR_OPTIONS
#define	FILTER_OPTIONS

Typedefs
typedef struct CoreImageContext	CoreImageContext

Functions
	AVFILTER_DEFINE_CLASS (coreimage)
	AVFILTER_DEFINE_CLASS (coreimagesrc)

Variables
AVFilter	ff_vf_coreimage
AVFilter	ff_vsrc_coreimagesrc

Detailed Description

Video processing based on Apple's CoreImage API.

Macro Definition Documentation

CLAMP_WARNING

#define CLAMP_WARNING

Value:

do {     \
av_log(ctx, AV_LOG_WARNING, "Value of \"%f\" for option \"%s\" is out of range [%f %f], clamping to \"%f\".\n", \
       input,                  \
       [input_key UTF8String], \
       min_value.floatValue,   \
       max_value.floatValue,   \
       used_value.floatValue); \
} while(0)

FILTER_OPTIONS

#define FILTER_OPTIONS

Value:

{"list_filters",    "list available filters",                OFFSET(list_filters),    AV_OPT_TYPE_BOOL,   {.i64 = 0}, 0, 1, .flags = FLAGS}, \
    {"list_generators", "list available generators",             OFFSET(list_generators), AV_OPT_TYPE_BOOL,   {.i64 = 0}, 0, 1, .flags = FLAGS}, \
    {"filter",          "names and options of filters to apply", OFFSET(filter_string),   AV_OPT_TYPE_STRING, {.str = NULL},    .flags = FLAGS}, \
    {"output_rect",     "output rectangle within output image",  OFFSET(output_rect),     AV_OPT_TYPE_STRING, {.str = NULL},    .flags = FLAGS},

GENERATOR_OPTIONS

#define GENERATOR_OPTIONS

Value:

{"size",     "set video size",                OFFSET(w),          AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0,         FLAGS}, \
    {"s",        "set video size",                OFFSET(w),          AV_OPT_TYPE_IMAGE_SIZE, {.str = "320x240"}, 0, 0,         FLAGS}, \
    {"rate",     "set video rate",                OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"},      0, INT_MAX,         FLAGS}, \
    {"r",        "set video rate",                OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str = "25"},      0, INT_MAX,         FLAGS}, \
    {"duration", "set video duration",            OFFSET(duration),   AV_OPT_TYPE_DURATION,   {.i64 = -1},       -1, INT64_MAX, FLAGS}, \
    {"d",        "set video duration",            OFFSET(duration),   AV_OPT_TYPE_DURATION,   {.i64 = -1},       -1, INT64_MAX, FLAGS}, \
    {"sar",      "set video sample aspect ratio", OFFSET(sar),        AV_OPT_TYPE_RATIONAL,   {.dbl = 1},         0, INT_MAX,   FLAGS},

SafeCFRelease

#define SafeCFRelease

(

ptr

)

Value:

do { \
    if (ptr) {                  \
        CFRelease(ptr);         \
        ptr = NULL;             \
    }                           \
} while (0)

Variable Documentation

ff_vf_coreimage

AVFilter ff_vf_coreimage

Initial value:

= {
    .name          = "coreimage",
    .description   = NULL_IF_CONFIG_SMALL("Video filtering using CoreImage API."),
    .init          = init,
    .uninit        = uninit,
    .priv_size     = sizeof(CoreImageContext),
    .priv_class    = &coreimage_class,
    .inputs        = vf_coreimage_inputs,
    .outputs       = vf_coreimage_outputs,
    .query_formats = query_formats,
}

ff_vsrc_coreimagesrc

AVFilter ff_vsrc_coreimagesrc

Initial value:

= {
    .name          = "coreimagesrc",
    .description   = NULL_IF_CONFIG_SMALL("Video source using image generators of CoreImage API."),
    .init          = init_src,
    .uninit        = uninit,
    .priv_size     = sizeof(CoreImageContext),
    .priv_class    = &coreimagesrc_class,
    .inputs        = NULL,
    .outputs       = vsrc_coreimagesrc_outputs,
    .query_formats = query_formats_src,
}