28 DXVA_PicParams_H264
pp;
38 unsigned index,
unsigned flag)
40 assert((index&0x7f) == index && (flag&0x01) == flag);
41 pic->bPicEntry = index | (flag << 7);
45 DXVA_PicParams_H264 *pp)
50 memset(pp, 0,
sizeof(*pp));
56 pp->UsedForReferenceFlags = 0;
57 pp->NonExistingFrameFlags = 0;
60 if (j < h->short_ref_count) {
64 while (!r && j < h->short_ref_count + 16)
73 pp->FieldOrderCntList[i][0] = r->
field_poc[0];
75 pp->FieldOrderCntList[i][1] = r->
field_poc[1];
79 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
81 pp->UsedForReferenceFlags |= 1 << (2*i + 1);
83 pp->RefFrameList[i].bPicEntry = 0xff;
84 pp->FieldOrderCntList[i][0] = 0;
85 pp->FieldOrderCntList[i][1] = 0;
86 pp->FrameNumList[i] = 0;
90 pp->wFrameWidthInMbsMinus1 = h->
mb_width - 1;
91 pp->wFrameHeightInMbsMinus1 = h->
mb_height - 1;
117 pp->Reserved16Bits = 0;
119 pp->Reserved16Bits = 3;
120 pp->StatusReportFeedbackNumber = 1 + ctx->
report_id++;
121 pp->CurrFieldOrderCnt[0] = 0;
123 current_picture->
field_poc[0] != INT_MAX)
124 pp->CurrFieldOrderCnt[0] = current_picture->
field_poc[0];
125 pp->CurrFieldOrderCnt[1] = 0;
127 current_picture->
field_poc[1] != INT_MAX)
128 pp->CurrFieldOrderCnt[1] = current_picture->
field_poc[1];
129 pp->pic_init_qs_minus26 = h->
pps.
init_qs - 26;
132 pp->ContinuationFlag = 1;
133 pp->pic_init_qp_minus26 = h->
pps.
init_qp - 26;
134 pp->num_ref_idx_l0_active_minus1 = h->
pps.
ref_count[0] - 1;
135 pp->num_ref_idx_l1_active_minus1 = h->
pps.
ref_count[1] - 1;
136 pp->Reserved8BitsA = 0;
145 pp->entropy_coding_mode_flag = h->
pps.
cabac;
151 pp->Reserved8BitsB = 0;
152 pp->slice_group_change_rate_minus1= 0;
159 memset(qm, 0,
sizeof(*qm));
161 for (i = 0; i < 6; i++)
162 for (j = 0; j < 16; j++)
165 for (i = 0; i < 64; i++) {
170 for (i = 0; i < 6; i++)
171 for (j = 0; j < 16; j++)
174 for (i = 0; i < 64; i++) {
183 assert(ctx->
cfg->ConfigBitstreamRaw == 1 ||
184 ctx->
cfg->ConfigBitstreamRaw == 2);
185 return ctx->
cfg->ConfigBitstreamRaw == 2;
189 unsigned position,
unsigned size)
191 memset(slice, 0,
sizeof(*slice));
192 slice->BSNALunitDataLocation = position;
193 slice->SliceBytesInBuffer =
size;
194 slice->wBadSliceChopping = 0;
198 unsigned position,
unsigned size)
204 memset(slice, 0,
sizeof(*slice));
205 slice->BSNALunitDataLocation = position;
206 slice->SliceBytesInBuffer =
size;
207 slice->wBadSliceChopping = 0;
210 slice->NumMbsForSlice = 0;
214 slice->slice_type += 5;
218 slice->num_ref_idx_l0_active_minus1 = h->
ref_count[0] - 1;
220 slice->num_ref_idx_l1_active_minus1 = h->
ref_count[1] - 1;
223 slice->Reserved8Bits = 0;
225 for (list = 0; list < 2; list++) {
228 if (list < h->list_count && i < h->ref_count[list]) {
234 for (plane = 0; plane < 3; plane++) {
247 slice->Weights[list][i][plane][0] = w;
248 slice->Weights[list][i][plane][1] = o;
252 slice->RefPicList[list][i].bPicEntry = 0xff;
253 for (plane = 0; plane < 3; plane++) {
254 slice->Weights[list][i][plane][0] = 0;
255 slice->Weights[list][i][plane][1] = 0;
260 slice->slice_qs_delta = 0;
274 DXVA2_DecodeBufferDesc *bs,
275 DXVA2_DecodeBufferDesc *sc)
283 uint8_t *dxva_data, *current, *end;
291 if (FAILED(IDirectXVideoDecoder_GetBuffer(ctx->
decoder,
292 DXVA2_BitStreamDateBufferType,
293 &dxva_data, &dxva_size)))
296 end = dxva_data + dxva_size;
299 static const uint8_t start_code[] = { 0, 0, 1 };
300 static const unsigned start_code_size =
sizeof(start_code);
301 unsigned position,
size;
303 assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
304 offsetof(DXVA_Slice_H264_Long, BSNALunitDataLocation));
305 assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
306 offsetof(DXVA_Slice_H264_Long, SliceBytesInBuffer));
311 slice = (DXVA_Slice_H264_Short*)&ctx_pic->
slice_long[i];
313 position = slice->BSNALunitDataLocation;
314 size = slice->SliceBytesInBuffer;
315 if (start_code_size + size > end - current) {
320 slice->BSNALunitDataLocation = current - dxva_data;
321 slice->SliceBytesInBuffer = start_code_size +
size;
324 DXVA_Slice_H264_Long *
slice_long = (DXVA_Slice_H264_Long*)slice;
326 slice_long->NumMbsForSlice =
327 slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
329 slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
332 memcpy(current, start_code, start_code_size);
333 current += start_code_size;
335 memcpy(current, &ctx_pic->
bitstream[position], size);
338 padding =
FFMIN(128 - ((current - dxva_data) & 127), end - current);
339 if (slice && padding > 0) {
340 memset(current, 0, padding);
343 slice->SliceBytesInBuffer += padding;
345 if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(ctx->
decoder,
346 DXVA2_BitStreamDateBufferType)))
351 memset(bs, 0,
sizeof(*bs));
352 bs->CompressedBufferType = DXVA2_BitStreamDateBufferType;
353 bs->DataSize = current - dxva_data;
354 bs->NumMBsInBuffer = mb_count;
363 assert((bs->DataSize & 127) == 0);
365 DXVA2_SliceControlBufferType,
366 slice_data, slice_size, mb_count);
421 ctx_pic->
pp.wBitFields &= ~(1 << 15);
435 &ctx_pic->
pp,
sizeof(ctx_pic->
pp),
436 &ctx_pic->
qm,
sizeof(ctx_pic->
qm),
444 .
name =
"h264_dxva2",
#define PICT_BOTTOM_FIELD
int chroma_qp_index_offset[2]
int luma_weight_flag[2]
7.4.3.2 luma_weight_lX_flag
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx, DXVA2_DecodeBufferDesc *bs, DXVA2_DecodeBufferDesc *sc)
AVHWAccel ff_h264_dxva2_hwaccel
#define FF_ARRAY_ELEMS(a)
const DXVA2_ConfigPictureDecode * cfg
DXVA2 configuration used to create the decoder.
static const uint8_t zigzag_scan[16]
unsigned surface_count
The number of surface in the surface array.
DXVA_SliceInfo slice[MAX_SLICES]
int long_ref
1->long term reference 0->short term reference
uint8_t scaling_matrix4[6][16]
int deblocking_filter_parameters_present
deblocking_filter_parameters_present_flag
void * hwaccel_context
Hardware accelerator context.
int luma_weight[48][2][2]
int bit_depth_chroma
bit_depth_chroma_minus8 + 8
Picture ref_list[2][48]
0..15: frame refs, 16..47: mbaff field refs.
int cabac
entropy_coding_mode_flag
unsigned int ref_count[2]
num_ref_idx_l0/1_active_minus1 + 1
static int get_bits_count(const GetBitContext *s)
int ff_h264_get_slice_type(const H264Context *h)
Reconstruct bitstream slice_type.
int redundant_pic_cnt_present
redundant_pic_cnt_present_flag
int luma_log2_weight_denom
int chroma_weight[48][2][2][2]
H.264 / AVC / MPEG4 part10 codec.
uint64_t workaround
A bit field configuring the workarounds needed for using the decoder.
int mb_aff
mb_adaptive_frame_field_flag
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
int poc_type
pic_order_cnt_type
int constrained_intra_pred
constrained_intra_pred_flag
int direct_spatial_mv_pred
int weighted_pred
weighted_pred_flag
void av_log(void *avcl, int level, const char *fmt,...)
int residual_color_transform_flag
residual_colour_transform_flag
int delta_pic_order_always_zero_flag
#define FIELD_OR_MBAFF_PICTURE(h)
uint8_t scaling_matrix8[6][64]
int ff_dxva2_common_end_frame(AVCodecContext *avctx, Picture *pic, const void *pp, unsigned pp_size, const void *qm, unsigned qm_size, int(*commit_bs_si)(AVCodecContext *, DXVA2_DecodeBufferDesc *bs, DXVA2_DecodeBufferDesc *slice))
static void fill_scaling_lists(struct dxva_context *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
int ref_frame_count
num_ref_frames
const char * name
Name of the hardware accelerated codec.
void * hwaccel_picture_private
hardware accelerator private data
int ff_dxva2_commit_buffer(AVCodecContext *avctx, struct dxva_context *ctx, DXVA2_DecodeBufferDesc *dsc, unsigned type, const void *data, unsigned size, unsigned mb_count)
int init_qp
pic_init_qp_minus26 + 26
int frame_num
h264 frame_num (raw frame_num from slice header)
int direct_8x8_inference_flag
#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG
Work around for DXVA2 and old UVD/UVD+ ATI video cards.
static int is_slice_short(struct dxva_context *ctx)
static void fill_picture_parameters(struct dxva_context *ctx, const H264Context *h, DXVA_PicParams_H264 *pp)
DXVA_Slice_H264_Long slice_long[MAX_SLICES]
if(ac->has_optimized_func)
unsigned report_id
Private to the Libav AVHWAccel implementation.
int pic_order_present
pic_order_present_flag
int chroma_log2_weight_denom
static void fill_slice_short(DXVA_Slice_H264_Short *slice, unsigned position, unsigned size)
unsigned ff_dxva2_get_surface_index(const struct dxva_context *ctx, const Picture *picture)
H264 / AVC / MPEG4 part10 codec data table
int slice_alpha_c0_offset
main external API structure.
static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice, unsigned position, unsigned size)
int log2_max_poc_lsb
log2_max_pic_order_cnt_lsb_minus4
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer. ...
static int dxva2_h264_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
void ff_h264_draw_horiz_band(H264Context *h, int y, int height)
int field_poc[2]
h264 top/bottom POC
int transform_8x8_mode
transform_8x8_mode_flag
const uint8_t * bitstream
int init_qs
pic_init_qs_minus26 + 26
const uint8_t ff_zigzag_direct[64]
int log2_max_frame_num
log2_max_frame_num_minus4 + 4
int bit_depth_luma
bit_depth_luma_minus8 + 8
static int dxva2_h264_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
static int dxva2_h264_end_frame(AVCodecContext *avctx)
int pic_id
h264 pic_num (short -> no wrap version of pic_num, pic_num & max_pic_num; long -> long_pic_num) ...
int current_slice
current slice number, used to initalize slice_num of each thread/context
int slice_group_count
num_slice_groups_minus1 + 1
int chroma_weight_flag[2]
7.4.3.2 chroma_weight_lX_flag
IDirectXVideoDecoder * decoder
DXVA2 decoder object.
int deblocking_filter
disable_deblocking_filter_idc with 1 <-> 0
DXVA_Slice_H264_Short slice_short[MAX_SLICES]
static void fill_picture_entry(DXVA_PicEntry_H264 *pic, unsigned index, unsigned flag)
This structure is used to provides the necessary configurations and data to the DXVA2 Libav HWAccel i...
int short_ref_count
number of actual short term references
int mb_slice_group_map_type