FFmpeg
dxva2_vp9.c
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1 /*
2  * DXVA2 VP9 HW acceleration.
3  *
4  * copyright (c) 2015 Hendrik Leppkes
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22 
23 #include "config_components.h"
24 
25 #include "libavutil/avassert.h"
26 #include "libavutil/pixdesc.h"
27 
28 #include "dxva2_internal.h"
29 #include "vp9shared.h"
30 
31 struct vp9_dxva2_picture_context {
32  DXVA_PicParams_VP9 pp;
33  DXVA_Slice_VPx_Short slice;
34  const uint8_t *bitstream;
35  unsigned bitstream_size;
36 };
37 
38 static void fill_picture_entry(DXVA_PicEntry_VPx *pic,
39  unsigned index, unsigned flag)
40 {
41  av_assert0((index & 0x7f) == index && (flag & 0x01) == flag);
42  pic->bPicEntry = index | (flag << 7);
43 }
44 
45 static int fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const VP9SharedContext *h,
46  DXVA_PicParams_VP9 *pp)
47 {
48  int i;
49  const AVPixFmtDescriptor * pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
50 
51  if (!pixdesc)
52  return -1;
53 
54  memset(pp, 0, sizeof(*pp));
55 
56  fill_picture_entry(&pp->CurrPic, ff_dxva2_get_surface_index(avctx, ctx, h->frames[CUR_FRAME].tf.f), 0);
57 
58  pp->profile = h->h.profile;
59  pp->wFormatAndPictureInfoFlags = ((h->h.keyframe == 0) << 0) |
60  ((h->h.invisible == 0) << 1) |
61  (h->h.errorres << 2) |
62  (pixdesc->log2_chroma_w << 3) | /* subsampling_x */
63  (pixdesc->log2_chroma_h << 4) | /* subsampling_y */
64  (0 << 5) | /* extra_plane */
65  (h->h.refreshctx << 6) |
66  (h->h.parallelmode << 7) |
67  (h->h.intraonly << 8) |
68  (h->h.framectxid << 9) |
69  (h->h.resetctx << 11) |
70  ((h->h.keyframe ? 0 : h->h.highprecisionmvs) << 13) |
71  (0 << 14); /* ReservedFormatInfo2Bits */
72 
73  pp->width = avctx->width;
74  pp->height = avctx->height;
75  pp->BitDepthMinus8Luma = pixdesc->comp[0].depth - 8;
76  pp->BitDepthMinus8Chroma = pixdesc->comp[1].depth - 8;
77  /* swap 0/1 to match the reference */
78  pp->interp_filter = h->h.filtermode ^ (h->h.filtermode <= 1);
79  pp->Reserved8Bits = 0;
80 
81  for (i = 0; i < 8; i++) {
82  if (h->refs[i].f->buf[0]) {
83  fill_picture_entry(&pp->ref_frame_map[i], ff_dxva2_get_surface_index(avctx, ctx, h->refs[i].f), 0);
84  pp->ref_frame_coded_width[i] = h->refs[i].f->width;
85  pp->ref_frame_coded_height[i] = h->refs[i].f->height;
86  } else
87  pp->ref_frame_map[i].bPicEntry = 0xFF;
88  }
89 
90  for (i = 0; i < 3; i++) {
91  uint8_t refidx = h->h.refidx[i];
92  if (h->refs[refidx].f->buf[0])
93  fill_picture_entry(&pp->frame_refs[i], ff_dxva2_get_surface_index(avctx, ctx, h->refs[refidx].f), 0);
94  else
95  pp->frame_refs[i].bPicEntry = 0xFF;
96 
97  pp->ref_frame_sign_bias[i + 1] = h->h.signbias[i];
98  }
99 
100  pp->filter_level = h->h.filter.level;
101  pp->sharpness_level = h->h.filter.sharpness;
102 
103  pp->wControlInfoFlags = (h->h.lf_delta.enabled << 0) |
104  (h->h.lf_delta.updated << 1) |
105  (h->h.use_last_frame_mvs << 2) |
106  (0 << 3); /* ReservedControlInfo5Bits */
107 
108  for (i = 0; i < 4; i++)
109  pp->ref_deltas[i] = h->h.lf_delta.ref[i];
110 
111  for (i = 0; i < 2; i++)
112  pp->mode_deltas[i] = h->h.lf_delta.mode[i];
113 
114  pp->base_qindex = h->h.yac_qi;
115  pp->y_dc_delta_q = h->h.ydc_qdelta;
116  pp->uv_dc_delta_q = h->h.uvdc_qdelta;
117  pp->uv_ac_delta_q = h->h.uvac_qdelta;
118 
119  /* segmentation data */
120  pp->stVP9Segments.wSegmentInfoFlags = (h->h.segmentation.enabled << 0) |
121  (h->h.segmentation.update_map << 1) |
122  (h->h.segmentation.temporal << 2) |
123  (h->h.segmentation.absolute_vals << 3) |
124  (0 << 4); /* ReservedSegmentFlags4Bits */
125 
126  for (i = 0; i < 7; i++)
127  pp->stVP9Segments.tree_probs[i] = h->h.segmentation.prob[i];
128 
129  if (h->h.segmentation.temporal)
130  for (i = 0; i < 3; i++)
131  pp->stVP9Segments.pred_probs[i] = h->h.segmentation.pred_prob[i];
132  else
133  memset(pp->stVP9Segments.pred_probs, 255, sizeof(pp->stVP9Segments.pred_probs));
134 
135  for (i = 0; i < 8; i++) {
136  pp->stVP9Segments.feature_mask[i] = (h->h.segmentation.feat[i].q_enabled << 0) |
137  (h->h.segmentation.feat[i].lf_enabled << 1) |
138  (h->h.segmentation.feat[i].ref_enabled << 2) |
139  (h->h.segmentation.feat[i].skip_enabled << 3);
140 
141  pp->stVP9Segments.feature_data[i][0] = h->h.segmentation.feat[i].q_val;
142  pp->stVP9Segments.feature_data[i][1] = h->h.segmentation.feat[i].lf_val;
143  pp->stVP9Segments.feature_data[i][2] = h->h.segmentation.feat[i].ref_val;
144  pp->stVP9Segments.feature_data[i][3] = 0; /* no data for skip */
145  }
146 
147  pp->log2_tile_cols = h->h.tiling.log2_tile_cols;
148  pp->log2_tile_rows = h->h.tiling.log2_tile_rows;
149 
150  pp->uncompressed_header_size_byte_aligned = h->h.uncompressed_header_size;
151  pp->first_partition_size = h->h.compressed_header_size;
152 
153  pp->StatusReportFeedbackNumber = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
154  return 0;
155 }
156 
157 static void fill_slice_short(DXVA_Slice_VPx_Short *slice,
158  unsigned position, unsigned size)
159 {
160  memset(slice, 0, sizeof(*slice));
161  slice->BSNALunitDataLocation = position;
162  slice->SliceBytesInBuffer = size;
163  slice->wBadSliceChopping = 0;
164 }
165 
166 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
167  DECODER_BUFFER_DESC *bs,
168  DECODER_BUFFER_DESC *sc)
169 {
170  const VP9SharedContext *h = avctx->priv_data;
171  AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
172  struct vp9_dxva2_picture_context *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
173  void *dxva_data_ptr;
174  uint8_t *dxva_data;
175  unsigned dxva_size;
176  unsigned padding;
177  unsigned type;
178 
179 #if CONFIG_D3D11VA
180  if (ff_dxva2_is_d3d11(avctx)) {
181  type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
182  if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
183  D3D11VA_CONTEXT(ctx)->decoder,
184  type,
185  &dxva_size, &dxva_data_ptr)))
186  return -1;
187  }
188 #endif
189 #if CONFIG_DXVA2
190  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
191  type = DXVA2_BitStreamDateBufferType;
192  if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
193  type,
194  &dxva_data_ptr, &dxva_size)))
195  return -1;
196  }
197 #endif
198 
199  dxva_data = dxva_data_ptr;
200 
201  if (ctx_pic->slice.SliceBytesInBuffer > dxva_size) {
202  av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
203  return -1;
204  }
205 
206  memcpy(dxva_data, ctx_pic->bitstream, ctx_pic->slice.SliceBytesInBuffer);
207 
208  padding = FFMIN(128 - ((ctx_pic->slice.SliceBytesInBuffer) & 127), dxva_size - ctx_pic->slice.SliceBytesInBuffer);
209  if (padding > 0) {
210  memset(dxva_data + ctx_pic->slice.SliceBytesInBuffer, 0, padding);
211  ctx_pic->slice.SliceBytesInBuffer += padding;
212  }
213 
214 #if CONFIG_D3D11VA
215  if (ff_dxva2_is_d3d11(avctx))
216  if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
217  return -1;
218 #endif
219 #if CONFIG_DXVA2
220  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
221  if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
222  return -1;
223 #endif
224 
225 #if CONFIG_D3D11VA
226  if (ff_dxva2_is_d3d11(avctx)) {
227  D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
228  memset(dsc11, 0, sizeof(*dsc11));
229  dsc11->BufferType = type;
230  dsc11->DataSize = ctx_pic->slice.SliceBytesInBuffer;
231  dsc11->NumMBsInBuffer = 0;
232 
233  type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
234  }
235 #endif
236 #if CONFIG_DXVA2
237  if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
238  DXVA2_DecodeBufferDesc *dsc2 = bs;
239  memset(dsc2, 0, sizeof(*dsc2));
240  dsc2->CompressedBufferType = type;
241  dsc2->DataSize = ctx_pic->slice.SliceBytesInBuffer;
242  dsc2->NumMBsInBuffer = 0;
243 
244  type = DXVA2_SliceControlBufferType;
245  }
246 #endif
247 
248  return ff_dxva2_commit_buffer(avctx, ctx, sc,
249  type,
250  &ctx_pic->slice, sizeof(ctx_pic->slice), 0);
251 }
252 
253 
254 static int dxva2_vp9_start_frame(AVCodecContext *avctx,
255  av_unused const uint8_t *buffer,
256  av_unused uint32_t size)
257 {
258  const VP9SharedContext *h = avctx->priv_data;
259  AVDXVAContext *ctx = DXVA_CONTEXT(avctx);
260  struct vp9_dxva2_picture_context *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
261 
262  if (!DXVA_CONTEXT_VALID(avctx, ctx))
263  return -1;
264  av_assert0(ctx_pic);
265 
266  /* Fill up DXVA_PicParams_VP9 */
267  if (fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp) < 0)
268  return -1;
269 
270  ctx_pic->bitstream_size = 0;
271  ctx_pic->bitstream = NULL;
272  return 0;
273 }
274 
275 static int dxva2_vp9_decode_slice(AVCodecContext *avctx,
276  const uint8_t *buffer,
277  uint32_t size)
278 {
279  const VP9SharedContext *h = avctx->priv_data;
280  struct vp9_dxva2_picture_context *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
281  unsigned position;
282 
283  if (!ctx_pic->bitstream)
284  ctx_pic->bitstream = buffer;
285  ctx_pic->bitstream_size += size;
286 
287  position = buffer - ctx_pic->bitstream;
288  fill_slice_short(&ctx_pic->slice, position, size);
289 
290  return 0;
291 }
292 
293 static int dxva2_vp9_end_frame(AVCodecContext *avctx)
294 {
295  VP9SharedContext *h = avctx->priv_data;
296  struct vp9_dxva2_picture_context *ctx_pic = h->frames[CUR_FRAME].hwaccel_picture_private;
297  int ret;
298 
299  if (ctx_pic->bitstream_size <= 0)
300  return -1;
301 
302  ret = ff_dxva2_common_end_frame(avctx, h->frames[CUR_FRAME].tf.f,
303  &ctx_pic->pp, sizeof(ctx_pic->pp),
304  NULL, 0,
305  commit_bitstream_and_slice_buffer);
306  return ret;
307 }
308 
309 #if CONFIG_VP9_DXVA2_HWACCEL
310 const AVHWAccel ff_vp9_dxva2_hwaccel = {
311  .name = "vp9_dxva2",
312  .type = AVMEDIA_TYPE_VIDEO,
313  .id = AV_CODEC_ID_VP9,
314  .pix_fmt = AV_PIX_FMT_DXVA2_VLD,
315  .init = ff_dxva2_decode_init,
316  .uninit = ff_dxva2_decode_uninit,
317  .start_frame = dxva2_vp9_start_frame,
318  .decode_slice = dxva2_vp9_decode_slice,
319  .end_frame = dxva2_vp9_end_frame,
320  .frame_params = ff_dxva2_common_frame_params,
321  .frame_priv_data_size = sizeof(struct vp9_dxva2_picture_context),
322  .priv_data_size = sizeof(FFDXVASharedContext),
323 };
324 #endif
325 
326 #if CONFIG_VP9_D3D11VA_HWACCEL
327 const AVHWAccel ff_vp9_d3d11va_hwaccel = {
328  .name = "vp9_d3d11va",
329  .type = AVMEDIA_TYPE_VIDEO,
330  .id = AV_CODEC_ID_VP9,
331  .pix_fmt = AV_PIX_FMT_D3D11VA_VLD,
332  .init = ff_dxva2_decode_init,
333  .uninit = ff_dxva2_decode_uninit,
334  .start_frame = dxva2_vp9_start_frame,
335  .decode_slice = dxva2_vp9_decode_slice,
336  .end_frame = dxva2_vp9_end_frame,
337  .frame_params = ff_dxva2_common_frame_params,
338  .frame_priv_data_size = sizeof(struct vp9_dxva2_picture_context),
339  .priv_data_size = sizeof(FFDXVASharedContext),
340 };
341 #endif
342 
343 #if CONFIG_VP9_D3D11VA2_HWACCEL
344 const AVHWAccel ff_vp9_d3d11va2_hwaccel = {
345  .name = "vp9_d3d11va2",
346  .type = AVMEDIA_TYPE_VIDEO,
347  .id = AV_CODEC_ID_VP9,
348  .pix_fmt = AV_PIX_FMT_D3D11,
349  .init = ff_dxva2_decode_init,
350  .uninit = ff_dxva2_decode_uninit,
351  .start_frame = dxva2_vp9_start_frame,
352  .decode_slice = dxva2_vp9_decode_slice,
353  .end_frame = dxva2_vp9_end_frame,
354  .frame_params = ff_dxva2_common_frame_params,
355  .frame_priv_data_size = sizeof(struct vp9_dxva2_picture_context),
356  .priv_data_size = sizeof(FFDXVASharedContext),
357 };
358 #endif
fill_picture_entry
static void fill_picture_entry(DXVA_PicEntry_VPx *pic, unsigned index, unsigned flag)
Definition: dxva2_vp9.c:38
av_pix_fmt_desc_get
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2888
av_unused
#define av_unused
Definition: attributes.h:131
pixdesc.h
AVComponentDescriptor::depth
int depth
Number of bits in the component.
Definition: pixdesc.h:57
ff_dxva2_common_end_frame
int ff_dxva2_common_end_frame(AVCodecContext *avctx, AVFrame *frame, const void *pp, unsigned pp_size, const void *qm, unsigned qm_size, int(*commit_bs_si)(AVCodecContext *, DECODER_BUFFER_DESC *bs, DECODER_BUFFER_DESC *slice))
Definition: dxva2.c:886
AV_PIX_FMT_D3D11VA_VLD
@ AV_PIX_FMT_D3D11VA_VLD
HW decoding through Direct3D11 via old API, Picture.data[3] contains a ID3D11VideoDecoderOutputView p...
Definition: pixfmt.h:247
AVHWAccel
Definition: avcodec.h:2076
decoder
static const chunk_decoder decoder[8]
Definition: dfa.c:331
commit_bitstream_and_slice_buffer
static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx, DECODER_BUFFER_DESC *bs, DECODER_BUFFER_DESC *sc)
Definition: dxva2_vp9.c:166
type
it s the only field you need to keep assuming you have a context There is some magic you don t need to care about around this just let it vf type
Definition: writing_filters.txt:86
vp9shared.h
avassert.h
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:180
DXVA2_CONTEXT
#define DXVA2_CONTEXT(ctx)
Definition: dxva2_internal.h:102
AV_PIX_FMT_DXVA2_VLD
@ AV_PIX_FMT_DXVA2_VLD
HW decoding through DXVA2, Picture.data[3] contains a LPDIRECT3DSURFACE9 pointer.
Definition: pixfmt.h:127
VP9SharedContext
Definition: vp9shared.h:165
AV_CODEC_ID_VP9
@ AV_CODEC_ID_VP9
Definition: codec_id.h:220
ff_vp9_dxva2_hwaccel
const AVHWAccel ff_vp9_dxva2_hwaccel
av_assert0
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
DXVA_CONTEXT
#define DXVA_CONTEXT(avctx)
Definition: dxva2_internal.h:99
ctx
AVFormatContext * ctx
Definition: movenc.c:48
AVPixFmtDescriptor::log2_chroma_w
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:80
vp9_dxva2_picture_context::bitstream
const uint8_t * bitstream
Definition: dxva2_vp9.c:34
dxva2_internal.h
if
if(ret)
Definition: filter_design.txt:179
ff_vp9_d3d11va2_hwaccel
const AVHWAccel ff_vp9_d3d11va2_hwaccel
NULL
#define NULL
Definition: coverity.c:32
ff_dxva2_decode_init
int ff_dxva2_decode_init(AVCodecContext *avctx)
Definition: dxva2.c:655
vp9_dxva2_picture_context::pp
DXVA_PicParams_VP9 pp
Definition: dxva2_vp9.c:32
FFDXVASharedContext
Definition: dxva2_internal.h:67
dxva2_vp9_start_frame
static int dxva2_vp9_start_frame(AVCodecContext *avctx, av_unused const uint8_t *buffer, av_unused uint32_t size)
Definition: dxva2_vp9.c:254
index
int index
Definition: gxfenc.c:89
ff_vp9_d3d11va_hwaccel
const AVHWAccel ff_vp9_d3d11va_hwaccel
fill_picture_parameters
static int fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const VP9SharedContext *h, DXVA_PicParams_VP9 *pp)
Definition: dxva2_vp9.c:45
dxva2_vp9_decode_slice
static int dxva2_vp9_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: dxva2_vp9.c:275
for
for(k=2;k<=8;++k)
Definition: h264pred_template.c:425
size
int size
Definition: twinvq_data.h:10344
AVDXVAContext
Definition: dxva2_internal.h:58
DECODER_BUFFER_DESC
void DECODER_BUFFER_DESC
Definition: dxva2_internal.h:56
AV_PIX_FMT_D3D11
@ AV_PIX_FMT_D3D11
Hardware surfaces for Direct3D11.
Definition: pixfmt.h:333
AVHWAccel::name
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:2082
flag
#define flag(name)
Definition: cbs_av1.c:553
D3D11VA_CONTEXT
#define D3D11VA_CONTEXT(ctx)
Definition: dxva2_internal.h:101
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:269
vp9_dxva2_picture_context::slice
DXVA_Slice_VPx_Short slice
Definition: dxva2_vp9.c:33
FFMIN
#define FFMIN(a, b)
Definition: macros.h:49
vp9_dxva2_picture_context::bitstream_size
unsigned bitstream_size
Definition: dxva2_vp9.c:35
ff_dxva2_commit_buffer
int ff_dxva2_commit_buffer(AVCodecContext *avctx, AVDXVAContext *ctx, DECODER_BUFFER_DESC *dsc, unsigned type, const void *data, unsigned size, unsigned mb_count)
Definition: dxva2.c:797
vp9_dxva2_picture_context
Definition: dxva2_vp9.c:31
AVCodecContext::height
int height
Definition: avcodec.h:598
AVCodecContext::pix_fmt
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:635
ff_dxva2_get_surface_index
unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx, const AVDXVAContext *ctx, const AVFrame *frame)
Definition: dxva2.c:770
ff_dxva2_common_frame_params
int ff_dxva2_common_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
Definition: dxva2.c:592
fill_slice_short
static void fill_slice_short(DXVA_Slice_VPx_Short *slice, unsigned position, unsigned size)
Definition: dxva2_vp9.c:157
ret
ret
Definition: filter_design.txt:187
AVCodecContext
main external API structure.
Definition: avcodec.h:426
buffer
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
Definition: filter_design.txt:49
ff_dxva2_is_d3d11
int ff_dxva2_is_d3d11(const AVCodecContext *avctx)
Definition: dxva2.c:1051
AVPixFmtDescriptor::comp
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:105
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
ff_dxva2_decode_uninit
int ff_dxva2_decode_uninit(AVCodecContext *avctx)
Definition: dxva2.c:730
CUR_FRAME
#define CUR_FRAME
Definition: vp9shared.h:169
AVPixFmtDescriptor
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:69
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:453
AVCodecContext::width
int width
picture width / height.
Definition: avcodec.h:598
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:27
h
h
Definition: vp9dsp_template.c:2038
AVCodecContext::sw_pix_fmt
enum AVPixelFormat sw_pix_fmt
Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1757
AVPixFmtDescriptor::log2_chroma_h
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:89
dxva2_vp9_end_frame
static int dxva2_vp9_end_frame(AVCodecContext *avctx)
Definition: dxva2_vp9.c:293
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