hwcontext_videotoolbox.c File Reference

#include "config.h"
#include <stdint.h>
#include <string.h>
#include <VideoToolbox/VideoToolbox.h>
#include "buffer.h"
#include "common.h"
#include "hwcontext.h"
#include "hwcontext_internal.h"
#include "hwcontext_videotoolbox.h"
#include "mem.h"
#include "pixfmt.h"
#include "pixdesc.h"

Go to the source code of this file.

Functions
enum AVPixelFormat	av_map_videotoolbox_format_to_pixfmt (uint32_t cv_fmt)
	Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat. More...
uint32_t	av_map_videotoolbox_format_from_pixfmt (enum AVPixelFormat pix_fmt)
	Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format. More...
static int	vt_get_buffer (AVHWFramesContext *ctx, AVFrame *frame)
static int	vt_transfer_get_formats (AVHWFramesContext *ctx, enum AVHWFrameTransferDirection dir, enum AVPixelFormat **formats)
static void	vt_unmap (AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
static int	vt_map_frame (AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src, int flags)
static int	vt_transfer_data_from (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
static int	vt_transfer_data_to (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
static int	vt_device_create (AVHWDeviceContext *ctx, const char *device, AVDictionary *opts, int flags)

Variables
struct {
uint32_t   cv_fmt
enum AVPixelFormat   pix_fmt
}	cv_pix_fmts []
const HWContextType	ff_hwcontext_type_videotoolbox

Function Documentation

av_map_videotoolbox_format_to_pixfmt()

enum AVPixelFormat av_map_videotoolbox_format_to_pixfmt

(

uint32_t

cv_fmt

)

Convert a VideoToolbox (actually CoreVideo) format to AVPixelFormat.

Returns AV_PIX_FMT_NONE if no known equivalent was found.

Definition at line 50 of file hwcontext_videotoolbox.c.

Referenced by vt_map_frame().

av_map_videotoolbox_format_from_pixfmt()

uint32_t av_map_videotoolbox_format_from_pixfmt

(

enum AVPixelFormat

pix_fmt

)

Convert an AVPixelFormat to a VideoToolbox (actually CoreVideo) format.

Returns 0 if no known equivalent was found.

Definition at line 60 of file hwcontext_videotoolbox.c.

vt_get_buffer()

static int vt_get_buffer ( AVHWFramesContext *  ctx, AVFrame *  frame  )

static

Definition at line 70 of file hwcontext_videotoolbox.c.

vt_transfer_get_formats()

static int vt_transfer_get_formats ( AVHWFramesContext *  ctx, enum AVHWFrameTransferDirection  dir, enum AVPixelFormat **  formats  )

static

Definition at line 84 of file hwcontext_videotoolbox.c.

vt_unmap()

static void vt_unmap ( AVHWFramesContext *  ctx, HWMapDescriptor *  hwmap  )

static

Definition at line 99 of file hwcontext_videotoolbox.c.

Referenced by vt_map_frame().

vt_map_frame()

static int vt_map_frame ( AVHWFramesContext *  ctx, AVFrame *  dst, const AVFrame *  src, int  flags  )

static

Definition at line 106 of file hwcontext_videotoolbox.c.

Referenced by vt_transfer_data_from(), and vt_transfer_data_to().

vt_transfer_data_from()

static int vt_transfer_data_from ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src  )

static

Definition at line 162 of file hwcontext_videotoolbox.c.

vt_transfer_data_to()

static int vt_transfer_data_to ( AVHWFramesContext *  hwfc, AVFrame *  dst, const AVFrame *  src  )

static

Definition at line 193 of file hwcontext_videotoolbox.c.

vt_device_create()

static int vt_device_create ( AVHWDeviceContext *  ctx, const char *  device, AVDictionary *  opts, int  flags  )

static

Definition at line 224 of file hwcontext_videotoolbox.c.

Variable Documentation

cv_fmt

uint32_t cv_fmt

Definition at line 36 of file hwcontext_videotoolbox.c.

Referenced by av_map_videotoolbox_format_to_pixfmt().

pix_fmt

enum AVPixelFormat pix_fmt

Definition at line 37 of file hwcontext_videotoolbox.c.

Referenced by av_map_videotoolbox_format_from_pixfmt().

cv_pix_fmts

const { ... } cv_pix_fmts[]

Initial value:

= {
    { kCVPixelFormatType_420YpCbCr8Planar,              AV_PIX_FMT_YUV420P },
    { kCVPixelFormatType_422YpCbCr8,                    AV_PIX_FMT_UYVY422 },
    { kCVPixelFormatType_32BGRA,                        AV_PIX_FMT_BGRA },
 
 
 
 
 
 
}

Referenced by av_map_videotoolbox_format_from_pixfmt(), and av_map_videotoolbox_format_to_pixfmt().

ff_hwcontext_type_videotoolbox

const HWContextType ff_hwcontext_type_videotoolbox

Initial value:

= {
    .type                 = AV_HWDEVICE_TYPE_VIDEOTOOLBOX,
    .name                 = "videotoolbox",
 
    .device_create        = vt_device_create,
    .frames_get_buffer    = vt_get_buffer,
    .transfer_get_formats = vt_transfer_get_formats,
    .transfer_data_to     = vt_transfer_data_to,
    .transfer_data_from   = vt_transfer_data_from,
 
    .pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_VIDEOTOOLBOX, AV_PIX_FMT_NONE },
}

Definition at line 235 of file hwcontext_videotoolbox.c.