FFmpeg
Functions | Variables
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...
 
uint32_t av_map_videotoolbox_format_from_pixfmt2 (enum AVPixelFormat pix_fmt, bool full_range)
 Same as av_map_videotoolbox_format_from_pixfmt function, but can map and return full range pixel formats via a flag. 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
 
   bool   full_range
 
   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 53 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 63 of file hwcontext_videotoolbox.c.

◆ av_map_videotoolbox_format_from_pixfmt2()

uint32_t av_map_videotoolbox_format_from_pixfmt2 ( enum AVPixelFormat  pix_fmt,
bool  full_range 
)

Same as av_map_videotoolbox_format_from_pixfmt function, but can map and return full range pixel formats via a flag.

Definition at line 68 of file hwcontext_videotoolbox.c.

Referenced by av_map_videotoolbox_format_from_pixfmt().

◆ vt_get_buffer()

static int vt_get_buffer ( AVHWFramesContext ctx,
AVFrame frame 
)
static

Definition at line 78 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 92 of file hwcontext_videotoolbox.c.

◆ vt_unmap()

static void vt_unmap ( AVHWFramesContext ctx,
HWMapDescriptor hwmap 
)
static

Definition at line 107 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 114 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 170 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 201 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 232 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().

◆ full_range

bool full_range

◆ pix_fmt

enum AVPixelFormat pix_fmt

◆ cv_pix_fmts

const { ... } cv_pix_fmts[]
Initial value:
= {
{ kCVPixelFormatType_420YpCbCr8Planar, false, AV_PIX_FMT_YUV420P },
{ kCVPixelFormatType_422YpCbCr8, false, AV_PIX_FMT_UYVY422 },
{ kCVPixelFormatType_32BGRA, false, AV_PIX_FMT_BGRA },
}

Referenced by av_map_videotoolbox_format_from_pixfmt2(), and av_map_videotoolbox_format_to_pixfmt().

◆ ff_hwcontext_type_videotoolbox

const HWContextType ff_hwcontext_type_videotoolbox
Initial value:
= {
.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 243 of file hwcontext_videotoolbox.c.

AVPixelFormat
AVPixelFormat
Pixel format.
Definition: pixfmt.h:64
vt_transfer_data_from
static int vt_transfer_data_from(AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
Definition: hwcontext_videotoolbox.c:170
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
AV_HWDEVICE_TYPE_VIDEOTOOLBOX
@ AV_HWDEVICE_TYPE_VIDEOTOOLBOX
Definition: hwcontext.h:34
vt_device_create
static int vt_device_create(AVHWDeviceContext *ctx, const char *device, AVDictionary *opts, int flags)
Definition: hwcontext_videotoolbox.c:232
vt_transfer_get_formats
static int vt_transfer_get_formats(AVHWFramesContext *ctx, enum AVHWFrameTransferDirection dir, enum AVPixelFormat **formats)
Definition: hwcontext_videotoolbox.c:92
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
vt_transfer_data_to
static int vt_transfer_data_to(AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
Definition: hwcontext_videotoolbox.c:201
AV_PIX_FMT_VIDEOTOOLBOX
@ AV_PIX_FMT_VIDEOTOOLBOX
hardware decoding through Videotoolbox
Definition: pixfmt.h:272
vt_get_buffer
static int vt_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
Definition: hwcontext_videotoolbox.c:78
AV_PIX_FMT_UYVY422
@ AV_PIX_FMT_UYVY422
packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
Definition: pixfmt.h:81
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65