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23 #include "config_components.h"
33 #define MAX_SLICES 256
36 DXVA_PicParams_HEVC
pp;
46 memset(slice, 0,
sizeof(*slice));
47 slice->BSNALunitDataLocation = position;
48 slice->SliceBytesInBuffer =
size;
49 slice->wBadSliceChopping = 0;
97 #define START_CODE 65536
98 #define START_CODE_SIZE 3
106 uint8_t *mapped_data, *mapped_ptr;
107 DXVA_Slice_HEVC_Short *slice;
108 D3D12_VIDEO_DECODE_FRAME_ARGUMENT *args;
110 if (FAILED(ID3D12Resource_Map(
buffer, 0,
NULL, (
void **)&mapped_data))) {
115 mapped_ptr = mapped_data;
120 position = slice->BSNALunitDataLocation;
121 size = slice->SliceBytesInBuffer;
124 slice->BSNALunitDataLocation = mapped_ptr - mapped_data;
135 input_args->CompressedBitstream = (D3D12_VIDEO_DECODE_COMPRESSED_BITSTREAM){
138 .Size = mapped_ptr - mapped_data,
141 args = &input_args->FrameArguments[input_args->NumFrameArguments++];
142 args->Type = D3D12_VIDEO_DECODE_ARGUMENT_TYPE_SLICE_CONTROL;
143 args->Size =
sizeof(DXVA_Slice_HEVC_Short) * ctx_pic->
slice_count;
154 int scale = ctx_pic->
pp.dwCodingParamToolFlags & 1;
166 DXVA_PicParams_HEVC pp;
170 ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_HEVC_MAIN10;
175 ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_HEVC_MAIN;
178 av_log(avctx,
AV_LOG_ERROR,
"D3D12 doesn't support PROFILE_HEVC_MAIN_STILL_PICTURE!\n");
184 ctx->cfg.DecodeProfile = D3D12_VIDEO_DECODE_PROFILE_HEVC_MAIN;
193 #if CONFIG_HEVC_D3D12VA_HWACCEL
195 .
p.
name =
"hevc_d3d12va",
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
const uint8_t * bitstream
void ff_dxva2_hevc_fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_PicParams_HEVC *pp)
static int d3d12va_hevc_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
#define AV_PROFILE_HEVC_MAIN
AVHWAccel p
The public AVHWAccel.
void * hwaccel_picture_private
RefStruct reference.
int ff_d3d12va_decode_uninit(AVCodecContext *avctx)
uninit D3D12VADecodeContext
static int d3d12va_hevc_decode_init(AVCodecContext *avctx)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
#define FF_ARRAY_ELEMS(a)
const struct FFHWAccel ff_hevc_d3d12va_hwaccel
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int ff_d3d12va_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
d3d12va common frame params
static int update_input_arguments(AVCodecContext *avctx, D3D12_VIDEO_DECODE_INPUT_STREAM_ARGUMENTS *input_args, ID3D12Resource *buffer)
#define AV_PROFILE_HEVC_MAIN_STILL_PICTURE
#define AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH
Hardware acceleration should still be attempted for decoding when the codec profile does not match th...
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
@ AV_PIX_FMT_D3D12
Hardware surfaces for Direct3D 12.
void ff_dxva2_hevc_fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, DXVA_Qmatrix_HEVC *qm)
#define D3D12VA_DECODE_CONTEXT(avctx)
#define AV_PROFILE_HEVC_MAIN_10
static void scale(int *out, const int *in, const int w, const int h, const int shift)
static int d3d12va_hevc_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
const char * name
Name of the hardware accelerated codec.
static void fill_slice_short(DXVA_Slice_HEVC_Short *slice, unsigned position, unsigned size)
#define i(width, name, range_min, range_max)
int hwaccel_flags
Bit set of AV_HWACCEL_FLAG_* flags, which affect hardware accelerated decoding (if active).
main external API structure.
the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer
DXVA_Slice_HEVC_Short slice_short[MAX_SLICES]
This structure is used to provide the necessary configurations and data to the FFmpeg Direct3D 12 HWA...
static int d3d12va_hevc_end_frame(AVCodecContext *avctx)
int ff_d3d12va_decode_init(AVCodecContext *avctx)
init D3D12VADecodeContext