d3d12va_decode.h File Reference

#include "libavutil/fifo.h"
#include "libavutil/hwcontext.h"
#include "libavutil/hwcontext_d3d12va.h"
#include "avcodec.h"
#include "internal.h"
#include "hwaccel_internal.h"

Go to the source code of this file.

Data Structures
struct	D3D12VADecodeContext
	This structure is used to provide the necessary configurations and data to the FFmpeg Direct3D 12 HWAccel implementation for video decoder. More...

Macros
#define	D3D12VA_VIDEO_DEC_ASYNC_DEPTH   36
#define	D3D12VA_DECODE_CONTEXT(avctx)
#define	D3D12VA_FRAMES_CONTEXT(avctx)

Functions
int	ff_d3d12va_get_suitable_max_bitstream_size (AVCodecContext *avctx)
	Get a suitable maximum bitstream size.
int	ff_d3d12va_decode_init (AVCodecContext *avctx)
	init D3D12VADecodeContext
int	ff_d3d12va_decode_uninit (AVCodecContext *avctx)
	uninit D3D12VADecodeContext
int	ff_d3d12va_common_frame_params (AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
	d3d12va common frame params
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

Macro Definition Documentation

D3D12VA_VIDEO_DEC_ASYNC_DEPTH

#define D3D12VA_VIDEO_DEC_ASYNC_DEPTH   36

Definition at line 140 of file d3d12va_decode.h.

Referenced by ff_d3d12va_decode_init().

D3D12VA_DECODE_CONTEXT

#define D3D12VA_DECODE_CONTEXT

(

avctx

)

Value:

((D3D12VADecodeContext *)((avctx)->internal->hwaccel_priv_data))

Definition at line 141 of file d3d12va_decode.h.

Referenced by d3d12va_av1_decode_init(), d3d12va_av1_start_frame(), d3d12va_create_decoder(), d3d12va_create_decoder_heap(), d3d12va_discard_helper_objects(), d3d12va_get_valid_helper_objects(), d3d12va_h264_decode_init(), d3d12va_h264_start_frame(), d3d12va_hevc_decode_init(), d3d12va_hevc_start_frame(), d3d12va_mpeg2_decode_init(), d3d12va_mpeg2_start_frame(), d3d12va_sync_with_gpu(), d3d12va_update_reference_frames_state(), d3d12va_vc1_decode_init(), d3d12va_vc1_start_frame(), d3d12va_vp9_decode_init(), d3d12va_vp9_start_frame(), ff_d3d12va_common_end_frame(), ff_d3d12va_decode_init(), ff_d3d12va_decode_uninit(), free_reference_only_resources(), get_reference_only_resource(), prepare_reference_only_resources(), update_input_arguments(), update_input_arguments(), update_input_arguments(), update_input_arguments(), update_input_arguments(), and update_input_arguments().

D3D12VA_FRAMES_CONTEXT

#define D3D12VA_FRAMES_CONTEXT

(

avctx

)

Value:

((AVHWFramesContext *)(avctx)->hw_frames_ctx->data)

Definition at line 142 of file d3d12va_decode.h.

Referenced by d3d12va_create_decoder(), d3d12va_create_decoder_heap(), ff_d3d12va_decode_init(), and ff_d3d12va_get_suitable_max_bitstream_size().

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 150 of file d3d12va_decode.c.

Referenced by d3d12va_av1_decode_init(), and ff_d3d12va_decode_init().

ff_d3d12va_decode_init()

int ff_d3d12va_decode_init

(

AVCodecContext *

avctx

)

init D3D12VADecodeContext

Returns

Error code (ret < 0 if failed)

Definition at line 405 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 495 of file d3d12va_decode.c.

Referenced by d3d12va_av1_decode_uninit(), and 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 389 of file d3d12va_decode.c.

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(*	update_input_arguments )(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 558 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().