FFmpeg
Data Structures | Macros | Enumerations | Functions
videotoolbox.c File Reference
#include "config.h"
#include "videotoolbox.h"
#include "libavutil/hwcontext_videotoolbox.h"
#include "vt_internal.h"
#include "libavutil/avutil.h"
#include "libavutil/hwcontext.h"
#include "libavutil/pixdesc.h"
#include "bytestream.h"
#include "decode.h"
#include "h264dec.h"
#include "hevcdec.h"
#include "mpegvideo.h"
#include <TargetConditionals.h>

Go to the source code of this file.

Data Structures

struct  VTHWFrame
 

Macros

#define kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder   CFSTR("RequireHardwareAcceleratedVideoDecoder")
 
#define kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder   CFSTR("EnableHardwareAcceleratedVideoDecoder")
 
#define VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING   12
 
#define AV_W8(p, v)   *(p) = (v)
 
#define COUNT_SIZE_PS(T, t)
 
#define APPEND_PS(T, t)
 

Enumerations

enum  { kCMVideoCodecType_HEVC = 'hvc1' }
 

Functions

static void videotoolbox_buffer_release (void *opaque, uint8_t *data)
 
static int videotoolbox_buffer_copy (VTContext *vtctx, const uint8_t *buffer, uint32_t size)
 
static int videotoolbox_postproc_frame (void *avctx, AVFrame *frame)
 
int ff_videotoolbox_alloc_frame (AVCodecContext *avctx, AVFrame *frame)
 
CFDataRef ff_videotoolbox_avcc_extradata_create (AVCodecContext *avctx)
 
CFDataRef ff_videotoolbox_hvcc_extradata_create (AVCodecContext *avctx)
 
int ff_videotoolbox_h264_start_frame (AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
 
static int videotoolbox_h264_decode_params (AVCodecContext *avctx, int type, const uint8_t *buffer, uint32_t size)
 
static int videotoolbox_common_decode_slice (AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
 
int ff_videotoolbox_h264_decode_slice (AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
 
int ff_videotoolbox_uninit (AVCodecContext *avctx)
 

Macro Definition Documentation

#define kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder   CFSTR("RequireHardwareAcceleratedVideoDecoder")

Definition at line 38 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

#define kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder   CFSTR("EnableHardwareAcceleratedVideoDecoder")

Definition at line 41 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

#define VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING   12

Definition at line 48 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

#define AV_W8 (   p,
 
)    *(p) = (v)
#define COUNT_SIZE_PS (   T,
 
)
Value:
for (i = 0; i < HEVC_MAX_##T##PS_COUNT; i++) { \
if (h->ps.t##ps_list[i]) { \
const HEVC##T##PS *lps = (const HEVC##T##PS *)h->ps.t##ps_list[i]->data; \
vt_extradata_size += 2 + lps->data_size; \
num_##t##ps++; \
} \
}
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#define T(x)
Definition: vp56_arith.h:29
if(ret)

Referenced by ff_videotoolbox_hvcc_extradata_create().

#define APPEND_PS (   T,
 
)
Value:
/* \
* bit(1) array_completeness; \
* unsigned int(1) reserved = 0; \
* unsigned int(6) NAL_unit_type; \
*/ \
AV_W8(p, 1 << 7 | \
HEVC_NAL_##T##PS & 0x3f); \
/* unsigned int(16) numNalus; */ \
AV_WB16(p + 1, num_##t##ps); \
p += 3; \
for (i = 0; i < HEVC_MAX_##T##PS_COUNT; i++) { \
if (h->ps.t##ps_list[i]) { \
const HEVC##T##PS *lps = (const HEVC##T##PS *)h->ps.t##ps_list[i]->data; \
/* unsigned int(16) nalUnitLength; */ \
AV_WB16(p, lps->data_size); \
/* bit(8*nalUnitLength) nalUnit; */ \
memcpy(p + 2, lps->data, lps->data_size); \
p += 2 + lps->data_size; \
} \
}
#define AV_W8(p, v)
Definition: videotoolbox.c:141
#define AV_WB16(p, v)
Definition: intreadwrite.h:405
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#define T(x)
Definition: vp56_arith.h:29
if(ret)
for(j=16;j >0;--j)

Referenced by ff_videotoolbox_hvcc_extradata_create().

Enumeration Type Documentation

anonymous enum
Enumerator
kCMVideoCodecType_HEVC 

Definition at line 45 of file videotoolbox.c.

Function Documentation

static void videotoolbox_buffer_release ( void opaque,
uint8_t data 
)
static

Definition at line 55 of file videotoolbox.c.

Referenced by ff_videotoolbox_alloc_frame().

static int videotoolbox_buffer_copy ( VTContext vtctx,
const uint8_t buffer,
uint32_t  size 
)
static

Definition at line 64 of file videotoolbox.c.

Referenced by ff_videotoolbox_h264_start_frame(), and ff_videotoolbox_uninit().

static int videotoolbox_postproc_frame ( void avctx,
AVFrame frame 
)
static

Definition at line 84 of file videotoolbox.c.

Referenced by ff_videotoolbox_alloc_frame().

int ff_videotoolbox_alloc_frame ( AVCodecContext avctx,
AVFrame frame 
)

Definition at line 111 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

CFDataRef ff_videotoolbox_avcc_extradata_create ( AVCodecContext avctx)

Definition at line 143 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

CFDataRef ff_videotoolbox_hvcc_extradata_create ( AVCodecContext avctx)

Definition at line 182 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

int ff_videotoolbox_h264_start_frame ( AVCodecContext avctx,
const uint8_t buffer,
uint32_t  size 
)

Definition at line 334 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

static int videotoolbox_h264_decode_params ( AVCodecContext avctx,
int  type,
const uint8_t buffer,
uint32_t  size 
)
static

Definition at line 348 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().

static int videotoolbox_common_decode_slice ( AVCodecContext avctx,
const uint8_t buffer,
uint32_t  size 
)
static

Definition at line 371 of file videotoolbox.c.

Referenced by ff_videotoolbox_h264_decode_slice(), and ff_videotoolbox_uninit().

int ff_videotoolbox_h264_decode_slice ( AVCodecContext avctx,
const uint8_t buffer,
uint32_t  size 
)

Definition at line 394 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit(), and videotoolbox_h264_decode_params().

int ff_videotoolbox_uninit ( AVCodecContext avctx)

Definition at line 406 of file videotoolbox.c.

Referenced by ff_videotoolbox_uninit().