FFmpeg
Data Structures | Functions | Variables
hwcontext_videotoolbox.c File Reference
#include "config.h"
#include <stdint.h>
#include <string.h>
#include <VideoToolbox/VideoToolbox.h>
#include "buffer.h"
#include "buffer_internal.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.

Data Structures

struct  VTFramesContext
 

Functions

static int vt_frames_get_constraints (AVHWDeviceContext *ctx, const void *hwconfig, AVHWFramesConstraints *constraints)
 
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_pool_alloc (AVHWFramesContext *ctx)
 
static AVBufferRefvt_dummy_pool_alloc (void *opaque, size_t size)
 
static void vt_frames_uninit (AVHWFramesContext *ctx)
 
static int vt_frames_init (AVHWFramesContext *ctx)
 
static void videotoolbox_buffer_release (void *opaque, uint8_t *data)
 
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_pixbuf_set_par (void *log_ctx, CVPixelBufferRef pixbuf, const AVFrame *src)
 
CFStringRef av_map_videotoolbox_chroma_loc_from_av (enum AVChromaLocation loc)
 Convert an AVChromaLocation to a VideoToolbox/CoreVideo chroma location string. More...
 
static int vt_pixbuf_set_chromaloc (void *log_ctx, CVPixelBufferRef pixbuf, const AVFrame *src)
 
CFStringRef av_map_videotoolbox_color_matrix_from_av (enum AVColorSpace space)
 Convert an AVColorSpace to a VideoToolbox/CoreVideo color matrix string. More...
 
CFStringRef av_map_videotoolbox_color_primaries_from_av (enum AVColorPrimaries pri)
 Convert an AVColorPrimaries to a VideoToolbox/CoreVideo color primaries string. More...
 
CFStringRef av_map_videotoolbox_color_trc_from_av (enum AVColorTransferCharacteristic trc)
 Convert an AVColorTransferCharacteristic to a VideoToolbox/CoreVideo color transfer function string. More...
 
static int vt_pixbuf_set_colorspace (void *log_ctx, CVPixelBufferRef pixbuf, const AVFrame *src)
 
static int vt_pixbuf_set_attachments (void *log_ctx, CVPixelBufferRef pixbuf, const AVFrame *src)
 
int av_vt_pixbuf_set_attachments (void *log_ctx, CVPixelBufferRef pixbuf, const AVFrame *src)
 
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_map_from (AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src, int flags)
 
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 []
 
static enum AVPixelFormat supported_formats []
 
const HWContextType ff_hwcontext_type_videotoolbox
 

Function Documentation

◆ vt_frames_get_constraints()

static int vt_frames_get_constraints ( AVHWDeviceContext ctx,
const void *  hwconfig,
AVHWFramesConstraints constraints 
)
static

Definition at line 112 of file hwcontext_videotoolbox.c.

◆ 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 137 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 147 of file hwcontext_videotoolbox.c.

Referenced by vt_pool_alloc().

◆ 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 152 of file hwcontext_videotoolbox.c.

Referenced by av_map_videotoolbox_format_from_pixfmt(), and get_cv_pixel_format().

◆ vt_pool_alloc()

static int vt_pool_alloc ( AVHWFramesContext ctx)
static

Definition at line 162 of file hwcontext_videotoolbox.c.

Referenced by vt_frames_init().

◆ vt_dummy_pool_alloc()

static AVBufferRef* vt_dummy_pool_alloc ( void *  opaque,
size_t  size 
)
static

Definition at line 213 of file hwcontext_videotoolbox.c.

Referenced by vt_frames_init().

◆ vt_frames_uninit()

static void vt_frames_uninit ( AVHWFramesContext ctx)
static

Definition at line 218 of file hwcontext_videotoolbox.c.

◆ vt_frames_init()

static int vt_frames_init ( AVHWFramesContext ctx)
static

Definition at line 227 of file hwcontext_videotoolbox.c.

◆ videotoolbox_buffer_release()

static void videotoolbox_buffer_release ( void *  opaque,
uint8_t *  data 
)
static

Definition at line 255 of file hwcontext_videotoolbox.c.

Referenced by vt_get_buffer().

◆ vt_get_buffer()

static int vt_get_buffer ( AVHWFramesContext ctx,
AVFrame frame 
)
static

Definition at line 260 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 299 of file hwcontext_videotoolbox.c.

◆ vt_unmap()

static void vt_unmap ( AVHWFramesContext ctx,
HWMapDescriptor hwmap 
)
static

Definition at line 314 of file hwcontext_videotoolbox.c.

Referenced by vt_map_frame().

◆ vt_pixbuf_set_par()

static int vt_pixbuf_set_par ( void *  log_ctx,
CVPixelBufferRef  pixbuf,
const AVFrame src 
)
static

Definition at line 321 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_attachments().

◆ av_map_videotoolbox_chroma_loc_from_av()

CFStringRef av_map_videotoolbox_chroma_loc_from_av ( enum AVChromaLocation  loc)

Convert an AVChromaLocation to a VideoToolbox/CoreVideo chroma location string.

Returns 0 if no known equivalent was found.

Definition at line 378 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_chromaloc().

◆ vt_pixbuf_set_chromaloc()

static int vt_pixbuf_set_chromaloc ( void *  log_ctx,
CVPixelBufferRef  pixbuf,
const AVFrame src 
)
static

Definition at line 398 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_attachments().

◆ av_map_videotoolbox_color_matrix_from_av()

CFStringRef av_map_videotoolbox_color_matrix_from_av ( enum AVColorSpace  space)

Convert an AVColorSpace to a VideoToolbox/CoreVideo color matrix string.

Returns 0 if no known equivalent was found.

Definition at line 414 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_colorspace().

◆ av_map_videotoolbox_color_primaries_from_av()

CFStringRef av_map_videotoolbox_color_primaries_from_av ( enum AVColorPrimaries  pri)

Convert an AVColorPrimaries to a VideoToolbox/CoreVideo color primaries string.

Returns 0 if no known equivalent was found.

Definition at line 441 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_colorspace().

◆ av_map_videotoolbox_color_trc_from_av()

CFStringRef av_map_videotoolbox_color_trc_from_av ( enum AVColorTransferCharacteristic  trc)

Convert an AVColorTransferCharacteristic to a VideoToolbox/CoreVideo color transfer function string.

Returns 0 if no known equivalent was found.

Definition at line 466 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_colorspace().

◆ vt_pixbuf_set_colorspace()

static int vt_pixbuf_set_colorspace ( void *  log_ctx,
CVPixelBufferRef  pixbuf,
const AVFrame src 
)
static

Definition at line 513 of file hwcontext_videotoolbox.c.

Referenced by vt_pixbuf_set_attachments().

◆ vt_pixbuf_set_attachments()

static int vt_pixbuf_set_attachments ( void *  log_ctx,
CVPixelBufferRef  pixbuf,
const AVFrame src 
)
static

Definition at line 570 of file hwcontext_videotoolbox.c.

Referenced by av_vt_pixbuf_set_attachments(), and vt_transfer_data_to().

◆ av_vt_pixbuf_set_attachments()

int av_vt_pixbuf_set_attachments ( void *  log_ctx,
CVPixelBufferRef  pixbuf,
const AVFrame src 
)

Definition at line 586 of file hwcontext_videotoolbox.c.

Referenced by videotoolbox_postproc_frame().

◆ vt_map_frame()

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

◆ vt_transfer_data_from()

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

Definition at line 648 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 679 of file hwcontext_videotoolbox.c.

◆ vt_map_from()

static int vt_map_from ( AVHWFramesContext hwfc,
AVFrame dst,
const AVFrame src,
int  flags 
)
static

Definition at line 714 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 738 of file hwcontext_videotoolbox.c.

Variable Documentation

◆ cv_fmt

uint32_t cv_fmt

Definition at line 41 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[]

◆ supported_formats

enum AVPixelFormat supported_formats[]
static

◆ ff_hwcontext_type_videotoolbox

const HWContextType ff_hwcontext_type_videotoolbox
Initial value:
= {
.name = "videotoolbox",
.frames_priv_size = sizeof(VTFramesContext),
.device_create = vt_device_create,
.frames_init = vt_frames_init,
.frames_get_buffer = vt_get_buffer,
.frames_get_constraints = vt_frames_get_constraints,
.frames_uninit = vt_frames_uninit,
.transfer_get_formats = vt_transfer_get_formats,
.transfer_data_to = vt_transfer_data_to,
.transfer_data_from = vt_transfer_data_from,
.map_from = vt_map_from,
}

Definition at line 749 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:648
vt_frames_init
static int vt_frames_init(AVHWFramesContext *ctx)
Definition: hwcontext_videotoolbox.c:227
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:738
vt_frames_uninit
static void vt_frames_uninit(AVHWFramesContext *ctx)
Definition: hwcontext_videotoolbox.c:218
vt_transfer_get_formats
static int vt_transfer_get_formats(AVHWFramesContext *ctx, enum AVHWFrameTransferDirection dir, enum AVPixelFormat **formats)
Definition: hwcontext_videotoolbox.c:299
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: libkvazaar.c:296
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_map_from
static int vt_map_from(AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src, int flags)
Definition: hwcontext_videotoolbox.c:714
vt_frames_get_constraints
static int vt_frames_get_constraints(AVHWDeviceContext *ctx, const void *hwconfig, AVHWFramesConstraints *constraints)
Definition: hwcontext_videotoolbox.c:112
vt_transfer_data_to
static int vt_transfer_data_to(AVHWFramesContext *hwfc, AVFrame *dst, const AVFrame *src)
Definition: hwcontext_videotoolbox.c:679
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:260
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
VTFramesContext
Definition: hwcontext_videotoolbox.c:36