d3d12va_decode.c File Reference

#include <string.h>
#include <initguid.h>
#include "libavutil/common.h"
#include "libavutil/log.h"
#include "libavutil/time.h"
#include "libavutil/imgutils.h"
#include "libavutil/hwcontext_d3d12va_internal.h"
#include "libavutil/hwcontext_d3d12va.h"
#include "avcodec.h"
#include "decode.h"
#include "d3d12va_decode.h"
#include "dxva2_internal.h"

Go to the source code of this file.

Data Structures
struct	HelperObjects

Functions
int	ff_d3d12va_get_suitable_max_bitstream_size (AVCodecContext *avctx)
	Get a suitable maximum bitstream size. More...
unsigned	ff_d3d12va_get_surface_index (const AVCodecContext *avctx, D3D12VADecodeContext *ctx, const AVFrame *frame, int curr)
static int	d3d12va_get_valid_helper_objects (AVCodecContext *avctx, ID3D12CommandAllocator **ppAllocator, ID3D12Resource **ppBuffer)
static int	d3d12va_discard_helper_objects (AVCodecContext *avctx, ID3D12CommandAllocator *pAllocator, ID3D12Resource *pBuffer, uint64_t fence_value)
static int	d3d12va_fence_completion (AVD3D12VASyncContext *psync_ctx)
static void	bufref_free_interface (void *opaque, uint8_t *data)
static AVBufferRef *	bufref_wrap_interface (IUnknown *iface)
static int	d3d12va_sync_with_gpu (AVCodecContext *avctx)
static int	d3d12va_create_decoder_heap (AVCodecContext *avctx)
static int	d3d12va_create_decoder (AVCodecContext *avctx)
int	ff_d3d12va_common_frame_params (AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
	d3d12va common frame params More...
int	ff_d3d12va_decode_init (AVCodecContext *avctx)
	init D3D12VADecodeContext More...
int	ff_d3d12va_decode_uninit (AVCodecContext *avctx)
	uninit D3D12VADecodeContext More...
static int	d3d12va_update_reference_frames_state (AVCodecContext *avctx, D3D12_RESOURCE_BARRIER *barriers, ID3D12Resource *current_resource, int state_before, int state_end)
int	ff_d3d12va_common_end_frame (AVCodecContext *avctx, AVFrame *frame, const void *pp, unsigned pp_size, const void *qm, unsigned qm_size, int(*update_input_arguments)(AVCodecContext *, D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS *, ID3D12Resource *))
	d3d12va common end frame More...

Function Documentation

ff_d3d12va_get_suitable_max_bitstream_size()

int ff_d3d12va_get_suitable_max_bitstream_size

(

AVCodecContext *

avctx

)

Get a suitable maximum bitstream size.

Creating and destroying a resource on d3d12 needs sync and reallocation, so use this function to help allocate a big enough bitstream buffer to avoid recreating resources when decoding.

Returns

the suitable size

Definition at line 43 of file d3d12va_decode.c.

Referenced by d3d12va_av1_decode_init(), and ff_d3d12va_decode_init().

ff_d3d12va_get_surface_index()

unsigned ff_d3d12va_get_surface_index	(	const AVCodecContext *	avctx,
		D3D12VADecodeContext *	ctx,
		const AVFrame *	frame,
		int	curr
	)

Definition at line 49 of file d3d12va_decode.c.

Referenced by ff_dxva2_get_surface_index().

d3d12va_get_valid_helper_objects()

static int d3d12va_get_valid_helper_objects ( AVCodecContext *  avctx, ID3D12CommandAllocator **  ppAllocator, ID3D12Resource **  ppBuffer  )

static

Definition at line 86 of file d3d12va_decode.c.

Referenced by ff_d3d12va_common_end_frame(), and ff_d3d12va_decode_init().

d3d12va_discard_helper_objects()

static int d3d12va_discard_helper_objects ( AVCodecContext *  avctx, ID3D12CommandAllocator *  pAllocator, ID3D12Resource *  pBuffer, uint64_t  fence_value  )

static

Definition at line 136 of file d3d12va_decode.c.

Referenced by ff_d3d12va_common_end_frame(), and ff_d3d12va_decode_init().

d3d12va_fence_completion()

static int d3d12va_fence_completion ( AVD3D12VASyncContext *  psync_ctx )

static

Definition at line 156 of file d3d12va_decode.c.

Referenced by d3d12va_sync_with_gpu(), and ff_d3d12va_common_end_frame().

bufref_free_interface()

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

static

Definition at line 169 of file d3d12va_decode.c.

Referenced by bufref_wrap_interface().

bufref_wrap_interface()

static AVBufferRef* bufref_wrap_interface ( IUnknown *  iface )

static

Definition at line 174 of file d3d12va_decode.c.

Referenced by d3d12va_create_decoder().

d3d12va_sync_with_gpu()

static int d3d12va_sync_with_gpu ( AVCodecContext *  avctx )

static

Definition at line 179 of file d3d12va_decode.c.

Referenced by ff_d3d12va_decode_init(), and ff_d3d12va_decode_uninit().

d3d12va_create_decoder_heap()

static int d3d12va_create_decoder_heap ( AVCodecContext *  avctx )

static

Definition at line 190 of file d3d12va_decode.c.

Referenced by ff_d3d12va_decode_init().

d3d12va_create_decoder()

static int d3d12va_create_decoder ( AVCodecContext *  avctx )

static

Definition at line 222 of file d3d12va_decode.c.

Referenced by ff_d3d12va_decode_init().

ff_d3d12va_common_frame_params()

int ff_d3d12va_common_frame_params	(	AVCodecContext *	avctx,
		AVBufferRef *	hw_frames_ctx
	)

d3d12va common frame params

Returns

Error code (ret < 0 if failed)

Definition at line 270 of file d3d12va_decode.c.

ff_d3d12va_decode_init()

int ff_d3d12va_decode_init

(

AVCodecContext *

avctx

)

init D3D12VADecodeContext

Returns

Error code (ret < 0 if failed)

Definition at line 282 of file d3d12va_decode.c.

Referenced by d3d12va_av1_decode_init(), d3d12va_h264_decode_init(), d3d12va_hevc_decode_init(), d3d12va_mpeg2_decode_init(), d3d12va_vc1_decode_init(), and d3d12va_vp9_decode_init().

ff_d3d12va_decode_uninit()

int ff_d3d12va_decode_uninit

(

AVCodecContext *

avctx

)

uninit D3D12VADecodeContext

Returns

Error code (ret < 0 if failed)

Definition at line 372 of file d3d12va_decode.c.

Referenced by d3d12va_av1_decode_uninit(), and ff_d3d12va_decode_init().

d3d12va_update_reference_frames_state()

static int d3d12va_update_reference_frames_state ( AVCodecContext *  avctx, D3D12_RESOURCE_BARRIER *  barriers, ID3D12Resource *  current_resource, int  state_before, int  state_end  )

inlinestatic

Definition at line 410 of file d3d12va_decode.c.

Referenced by ff_d3d12va_common_end_frame().

ff_d3d12va_common_end_frame()

int ff_d3d12va_common_end_frame	(	AVCodecContext *	avctx,
		AVFrame *	frame,
		const void *	pp,
		unsigned	pp_size,
		const void *	qm,
		unsigned	qm_size,
		int(*)(AVCodecContext *, D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS *, ID3D12Resource *)
	)

d3d12va common end frame

Parameters

avctx	codec context
frame	current output frame
pp	picture parameters
pp_size	the size of the picture parameters
qm	quantization matrix
qm_size	the size of the quantization matrix
callback	update decoder-specified input stream arguments

Returns

Error code (ret < 0 if failed)

Definition at line 433 of file d3d12va_decode.c.

Referenced by d3d12va_av1_end_frame(), d3d12va_h264_end_frame(), d3d12va_hevc_end_frame(), d3d12va_mpeg2_end_frame(), d3d12va_vc1_end_frame(), and d3d12va_vp9_end_frame().