FFmpeg
nvdec_av1.c
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1 /*
2  * AV1 HW decode acceleration through NVDEC
3  *
4  * Copyright (c) 2020 Timo Rothenpieler
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 "avcodec.h"
24 #include "nvdec.h"
25 #include "decode.h"
26 #include "hwaccel_internal.h"
27 #include "internal.h"
28 #include "av1dec.h"
29 
30 
32 {
33  if (seq->seq_profile == 2 && seq->color_config.high_bitdepth)
34  return seq->color_config.twelve_bit ? 12 : 10;
35  else if (seq->seq_profile <= 2 && seq->color_config.high_bitdepth)
36  return 10;
37  else
38  return 8;
39 }
40 
41 static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
42 {
43  const AV1DecContext *s = avctx->priv_data;
44  const AV1RawSequenceHeader *seq = s->raw_seq;
45  const AV1RawFrameHeader *frame_header = s->raw_frame_header;
46  const AV1RawFilmGrainParams *film_grain = &s->cur_frame.film_grain;
47 
49  CUVIDPICPARAMS *pp = &ctx->pic_params;
50  CUVIDAV1PICPARAMS *ppc = &pp->CodecSpecific.av1;
51  FrameDecodeData *fdd;
52  NVDECFrame *cf;
53  AVFrame *cur_frame = s->cur_frame.f;
54 
55  unsigned char remap_lr_type[4] = { AV1_RESTORE_NONE, AV1_RESTORE_SWITCHABLE, AV1_RESTORE_WIENER, AV1_RESTORE_SGRPROJ };
56 
57  int apply_grain = !(avctx->export_side_data & AV_CODEC_EXPORT_DATA_FILM_GRAIN) && film_grain->apply_grain;
58  int ret, i, j;
59 
60  ret = ff_nvdec_start_frame_sep_ref(avctx, cur_frame, apply_grain);
61  if (ret < 0)
62  return ret;
63 
64  fdd = (FrameDecodeData*)cur_frame->private_ref->data;
65  cf = (NVDECFrame*)fdd->hwaccel_priv;
66 
67  *pp = (CUVIDPICPARAMS) {
68  .PicWidthInMbs = (cur_frame->width + 15) / 16,
69  .FrameHeightInMbs = (cur_frame->height + 15) / 16,
70  .CurrPicIdx = cf->idx,
71  .ref_pic_flag = !!frame_header->refresh_frame_flags,
72  .intra_pic_flag = frame_header->frame_type == AV1_FRAME_INTRA_ONLY ||
73  frame_header->frame_type == AV1_FRAME_KEY,
74 
75  .CodecSpecific.av1 = {
76  .width = cur_frame->width,
77  .height = cur_frame->height,
78 
79  .frame_offset = frame_header->order_hint,
80  .decodePicIdx = cf->ref_idx,
81 
82  /* Sequence Header */
83  .profile = seq->seq_profile,
84  .use_128x128_superblock = seq->use_128x128_superblock,
85  .subsampling_x = seq->color_config.subsampling_x,
86  .subsampling_y = seq->color_config.subsampling_y,
87  .mono_chrome = seq->color_config.mono_chrome,
88  .bit_depth_minus8 = get_bit_depth_from_seq(seq) - 8,
89  .enable_filter_intra = seq->enable_filter_intra,
90  .enable_intra_edge_filter = seq->enable_intra_edge_filter,
91  .enable_interintra_compound = seq->enable_interintra_compound,
92  .enable_masked_compound = seq->enable_masked_compound,
93  .enable_dual_filter = seq->enable_dual_filter,
94  .enable_order_hint = seq->enable_order_hint,
95  .order_hint_bits_minus1 = seq->order_hint_bits_minus_1,
96  .enable_jnt_comp = seq->enable_jnt_comp,
97  .enable_superres = seq->enable_superres,
98  .enable_cdef = seq->enable_cdef,
99  .enable_restoration = seq->enable_restoration,
100  .enable_fgs = seq->film_grain_params_present &&
102 
103  /* Frame Header */
104  .frame_type = frame_header->frame_type,
105  .show_frame = frame_header->show_frame,
106  .disable_cdf_update = frame_header->disable_cdf_update,
107  .allow_screen_content_tools = frame_header->allow_screen_content_tools,
108  .force_integer_mv = frame_header->force_integer_mv ||
109  frame_header->frame_type == AV1_FRAME_INTRA_ONLY ||
110  frame_header->frame_type == AV1_FRAME_KEY,
111  .coded_denom = frame_header->coded_denom,
112  .allow_intrabc = frame_header->allow_intrabc,
113  .allow_high_precision_mv = frame_header->allow_high_precision_mv,
114  .interp_filter = frame_header->interpolation_filter,
115  .switchable_motion_mode = frame_header->is_motion_mode_switchable,
116  .use_ref_frame_mvs = frame_header->use_ref_frame_mvs,
117  .disable_frame_end_update_cdf = frame_header->disable_frame_end_update_cdf,
118  .delta_q_present = frame_header->delta_q_present,
119  .delta_q_res = frame_header->delta_q_res,
120  .using_qmatrix = frame_header->using_qmatrix,
121  .coded_lossless = s->cur_frame.coded_lossless,
122  .use_superres = frame_header->use_superres,
123  .tx_mode = frame_header->tx_mode,
124  .reference_mode = frame_header->reference_select,
125  .allow_warped_motion = frame_header->allow_warped_motion,
126  .reduced_tx_set = frame_header->reduced_tx_set,
127  .skip_mode = frame_header->skip_mode_present,
128 
129  /* Tiling Info */
130  .num_tile_cols = frame_header->tile_cols,
131  .num_tile_rows = frame_header->tile_rows,
132  .context_update_tile_id = frame_header->context_update_tile_id,
133 
134  /* CDEF */
135  .cdef_damping_minus_3 = frame_header->cdef_damping_minus_3,
136  .cdef_bits = frame_header->cdef_bits,
137 
138  /* SkipModeFrames */
139  .SkipModeFrame0 = frame_header->skip_mode_present ?
140  s->cur_frame.skip_mode_frame_idx[0] : 0,
141  .SkipModeFrame1 = frame_header->skip_mode_present ?
142  s->cur_frame.skip_mode_frame_idx[1] : 0,
143 
144  /* QP Information */
145  .base_qindex = frame_header->base_q_idx,
146  .qp_y_dc_delta_q = frame_header->delta_q_y_dc,
147  .qp_u_dc_delta_q = frame_header->delta_q_u_dc,
148  .qp_v_dc_delta_q = frame_header->delta_q_v_dc,
149  .qp_u_ac_delta_q = frame_header->delta_q_u_ac,
150  .qp_v_ac_delta_q = frame_header->delta_q_v_ac,
151  .qm_y = frame_header->qm_y,
152  .qm_u = frame_header->qm_u,
153  .qm_v = frame_header->qm_v,
154 
155  /* Segmentation */
156  .segmentation_enabled = frame_header->segmentation_enabled,
157  .segmentation_update_map = frame_header->segmentation_update_map,
158  .segmentation_update_data = frame_header->segmentation_update_data,
159  .segmentation_temporal_update = frame_header->segmentation_temporal_update,
160 
161  /* Loopfilter */
162  .loop_filter_level[0] = frame_header->loop_filter_level[0],
163  .loop_filter_level[1] = frame_header->loop_filter_level[1],
164  .loop_filter_level_u = frame_header->loop_filter_level[2],
165  .loop_filter_level_v = frame_header->loop_filter_level[3],
166  .loop_filter_sharpness = frame_header->loop_filter_sharpness,
167  .loop_filter_delta_enabled = frame_header->loop_filter_delta_enabled,
168  .loop_filter_delta_update = frame_header->loop_filter_delta_update,
169  .loop_filter_mode_deltas[0] = frame_header->loop_filter_mode_deltas[0],
170  .loop_filter_mode_deltas[1] = frame_header->loop_filter_mode_deltas[1],
171  .delta_lf_present = frame_header->delta_lf_present,
172  .delta_lf_res = frame_header->delta_lf_res,
173  .delta_lf_multi = frame_header->delta_lf_multi,
174 
175  /* Restoration */
176  .lr_type[0] = remap_lr_type[frame_header->lr_type[0]],
177  .lr_type[1] = remap_lr_type[frame_header->lr_type[1]],
178  .lr_type[2] = remap_lr_type[frame_header->lr_type[2]],
179  .lr_unit_size[0] = 1 + frame_header->lr_unit_shift,
180  .lr_unit_size[1] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift,
181  .lr_unit_size[2] = 1 + frame_header->lr_unit_shift - frame_header->lr_uv_shift,
182 
183  /* Reference Frames */
184  .temporal_layer_id = s->cur_frame.temporal_id,
185  .spatial_layer_id = s->cur_frame.spatial_id,
186 
187  /* Film Grain Params */
188  .apply_grain = apply_grain,
189  .overlap_flag = film_grain->overlap_flag,
190  .scaling_shift_minus8 = film_grain->grain_scaling_minus_8,
191  .chroma_scaling_from_luma = film_grain->chroma_scaling_from_luma,
192  .ar_coeff_lag = film_grain->ar_coeff_lag,
193  .ar_coeff_shift_minus6 = film_grain->ar_coeff_shift_minus_6,
194  .grain_scale_shift = film_grain->grain_scale_shift,
195  .clip_to_restricted_range = film_grain->clip_to_restricted_range,
196  .num_y_points = film_grain->num_y_points,
197  .num_cb_points = film_grain->num_cb_points,
198  .num_cr_points = film_grain->num_cr_points,
199  .random_seed = film_grain->grain_seed,
200  .cb_mult = film_grain->cb_mult,
201  .cb_luma_mult = film_grain->cb_luma_mult,
202  .cb_offset = film_grain->cb_offset,
203  .cr_mult = film_grain->cr_mult,
204  .cr_luma_mult = film_grain->cr_luma_mult,
205  .cr_offset = film_grain->cr_offset
206  }
207  };
208 
209  /* Tiling Info */
210  for (i = 0; i < frame_header->tile_cols; ++i) {
211  ppc->tile_widths[i] = frame_header->width_in_sbs_minus_1[i] + 1;
212  }
213  for (i = 0; i < frame_header->tile_rows; ++i) {
214  ppc->tile_heights[i] = frame_header->height_in_sbs_minus_1[i] + 1;
215  }
216 
217  /* CDEF */
218  for (i = 0; i < (1 << frame_header->cdef_bits); ++i) {
219  ppc->cdef_y_strength[i] = (frame_header->cdef_y_pri_strength[i] & 0x0F) | (frame_header->cdef_y_sec_strength[i] << 4);
220  ppc->cdef_uv_strength[i] = (frame_header->cdef_uv_pri_strength[i] & 0x0F) | (frame_header->cdef_uv_sec_strength[i] << 4);
221  }
222 
223  /* Segmentation */
224  for (i = 0; i < AV1_MAX_SEGMENTS; ++i) {
225  ppc->segmentation_feature_mask[i] = 0;
226  for (j = 0; j < AV1_SEG_LVL_MAX; ++j) {
227  ppc->segmentation_feature_mask[i] |= frame_header->feature_enabled[i][j] << j;
228  ppc->segmentation_feature_data[i][j] = frame_header->feature_value[i][j];
229  }
230  }
231 
232  for (i = 0; i < AV1_NUM_REF_FRAMES; ++i) {
233  /* Loopfilter */
234  ppc->loop_filter_ref_deltas[i] = frame_header->loop_filter_ref_deltas[i];
235 
236  /* Reference Frames */
237  ppc->ref_frame_map[i] = ff_nvdec_get_ref_idx(s->ref[i].f);
238  }
239 
240  if (frame_header->primary_ref_frame == AV1_PRIMARY_REF_NONE) {
241  ppc->primary_ref_frame = -1;
242  } else {
243  int8_t pri_ref_idx = frame_header->ref_frame_idx[frame_header->primary_ref_frame];
244  ppc->primary_ref_frame = ppc->ref_frame_map[pri_ref_idx];
245  }
246 
247  for (i = 0; i < AV1_REFS_PER_FRAME; ++i) {
248  /* Ref Frame List */
249  int8_t ref_idx = frame_header->ref_frame_idx[i];
250  AVFrame *ref_frame = s->ref[ref_idx].f;
251 
252  ppc->ref_frame[i].index = ppc->ref_frame_map[ref_idx];
253  ppc->ref_frame[i].width = ref_frame->width;
254  ppc->ref_frame[i].height = ref_frame->height;
255 
256  /* Global Motion */
257  ppc->global_motion[i].invalid = !frame_header->is_global[AV1_REF_FRAME_LAST + i];
258  ppc->global_motion[i].wmtype = s->cur_frame.gm_type[AV1_REF_FRAME_LAST + i];
259  for (j = 0; j < 6; ++j) {
260  ppc->global_motion[i].wmmat[j] = s->cur_frame.gm_params[AV1_REF_FRAME_LAST + i][j];
261  }
262  }
263 
264  /* Film Grain Params */
265  if (apply_grain) {
266  for (i = 0; i < 14; ++i) {
267  ppc->scaling_points_y[i][0] = film_grain->point_y_value[i];
268  ppc->scaling_points_y[i][1] = film_grain->point_y_scaling[i];
269  }
270  for (i = 0; i < 10; ++i) {
271  ppc->scaling_points_cb[i][0] = film_grain->point_cb_value[i];
272  ppc->scaling_points_cb[i][1] = film_grain->point_cb_scaling[i];
273  ppc->scaling_points_cr[i][0] = film_grain->point_cr_value[i];
274  ppc->scaling_points_cr[i][1] = film_grain->point_cr_scaling[i];
275  }
276  for (i = 0; i < 24; ++i) {
277  ppc->ar_coeffs_y[i] = (short)film_grain->ar_coeffs_y_plus_128[i] - 128;
278  }
279  for (i = 0; i < 25; ++i) {
280  ppc->ar_coeffs_cb[i] = (short)film_grain->ar_coeffs_cb_plus_128[i] - 128;
281  ppc->ar_coeffs_cr[i] = (short)film_grain->ar_coeffs_cr_plus_128[i] - 128;
282  }
283  }
284 
285  return 0;
286 }
287 
288 static int nvdec_av1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
289 {
290  const AV1DecContext *s = avctx->priv_data;
291  const AV1RawFrameHeader *frame_header = s->raw_frame_header;
293  void *tmp;
294 
295  ctx->nb_slices = frame_header->tile_cols * frame_header->tile_rows;
296 
297  tmp = av_fast_realloc(ctx->slice_offsets, &ctx->slice_offsets_allocated,
298  ctx->nb_slices * 2 * sizeof(*ctx->slice_offsets));
299  if (!tmp) {
300  return AVERROR(ENOMEM);
301  }
302  ctx->slice_offsets = tmp;
303 
304  /* Shortcut if all tiles are in the same buffer */
305  if (ctx->nb_slices == s->tg_end - s->tg_start + 1) {
306  ctx->bitstream = buffer;
307  ctx->bitstream_len = size;
308 
309  for (int i = 0; i < ctx->nb_slices; ++i) {
310  ctx->slice_offsets[i*2 ] = s->tile_group_info[i].tile_offset;
311  ctx->slice_offsets[i*2 + 1] = ctx->slice_offsets[i*2] + s->tile_group_info[i].tile_size;
312  }
313 
314  return 0;
315  }
316 
317  tmp = av_fast_realloc(ctx->bitstream_internal, &ctx->bitstream_allocated,
318  ctx->bitstream_len + size);
319  if (!tmp) {
320  return AVERROR(ENOMEM);
321  }
322  ctx->bitstream = ctx->bitstream_internal = tmp;
323 
324  memcpy(ctx->bitstream_internal + ctx->bitstream_len, buffer, size);
325 
326  for (uint32_t tile_num = s->tg_start; tile_num <= s->tg_end; ++tile_num) {
327  ctx->slice_offsets[tile_num*2 ] = ctx->bitstream_len + s->tile_group_info[tile_num].tile_offset;
328  ctx->slice_offsets[tile_num*2 + 1] = ctx->slice_offsets[tile_num*2] + s->tile_group_info[tile_num].tile_size;
329  }
330  ctx->bitstream_len += size;
331 
332  return 0;
333 }
334 
335 static int nvdec_av1_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
336 {
337  /* Maximum of 8 reference frames, but potentially stored twice due to film grain */
338  return ff_nvdec_frame_params(avctx, hw_frames_ctx, 8 * 2, 0);
339 }
340 
342  .p.name = "av1_nvdec",
343  .p.type = AVMEDIA_TYPE_VIDEO,
344  .p.id = AV_CODEC_ID_AV1,
345  .p.pix_fmt = AV_PIX_FMT_CUDA,
346  .start_frame = nvdec_av1_start_frame,
347  .end_frame = ff_nvdec_simple_end_frame,
348  .decode_slice = nvdec_av1_decode_slice,
349  .frame_params = nvdec_av1_frame_params,
350  .init = ff_nvdec_decode_init,
351  .uninit = ff_nvdec_decode_uninit,
352  .priv_data_size = sizeof(NVDECContext),
353 };
AV_PIX_FMT_CUDA
@ AV_PIX_FMT_CUDA
HW acceleration through CUDA.
Definition: pixfmt.h:260
AV1_REF_FRAME_LAST
@ AV1_REF_FRAME_LAST
Definition: av1.h:62
AVERROR
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
AV1RawFilmGrainParams::clip_to_restricted_range
uint8_t clip_to_restricted_range
Definition: cbs_av1.h:162
AV1RawFilmGrainParams::grain_seed
uint16_t grain_seed
Definition: cbs_av1.h:135
AV1RawSequenceHeader
Definition: cbs_av1.h:73
AVBufferRef::data
uint8_t * data
The data buffer.
Definition: buffer.h:90
AV1RawFilmGrainParams::point_cb_value
uint8_t point_cb_value[10]
Definition: cbs_av1.h:143
AV1RawFilmGrainParams::apply_grain
uint8_t apply_grain
Definition: cbs_av1.h:134
ff_nvdec_get_ref_idx
int ff_nvdec_get_ref_idx(AVFrame *frame)
Definition: nvdec.c:744
FFHWAccel::p
AVHWAccel p
The public AVHWAccel.
Definition: hwaccel_internal.h:38
FrameDecodeData
This struct stores per-frame lavc-internal data and is attached to it via private_ref.
Definition: decode.h:33
AVFrame
This structure describes decoded (raw) audio or video data.
Definition: frame.h:340
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:28
AVFrame::width
int width
Definition: frame.h:412
AV1RawFilmGrainParams::point_y_value
uint8_t point_y_value[14]
Definition: cbs_av1.h:139
internal.h
AV1RawSequenceHeader::seq_profile
uint8_t seq_profile
Definition: cbs_av1.h:74
AV1RawColorConfig::subsampling_y
uint8_t subsampling_y
Definition: cbs_av1.h:53
AV1RawFilmGrainParams::cr_mult
uint8_t cr_mult
Definition: cbs_av1.h:158
AV1RawFilmGrainParams::chroma_scaling_from_luma
uint8_t chroma_scaling_from_luma
Definition: cbs_av1.h:141
AV1RawFilmGrainParams::ar_coeffs_cr_plus_128
uint8_t ar_coeffs_cr_plus_128[25]
Definition: cbs_av1.h:152
AV1RawSequenceHeader::film_grain_params_present
uint8_t film_grain_params_present
Definition: cbs_av1.h:130
FFHWAccel
Definition: hwaccel_internal.h:34
NVDECFrame::ref_idx
unsigned int ref_idx
Definition: nvdec.h:46
AV1RawSequenceHeader::enable_filter_intra
uint8_t enable_filter_intra
Definition: cbs_av1.h:106
AV1_NUM_REF_FRAMES
@ AV1_NUM_REF_FRAMES
Definition: av1.h:83
AV1RawFilmGrainParams::point_cr_scaling
uint8_t point_cr_scaling[10]
Definition: cbs_av1.h:147
AV1_FRAME_INTRA_ONLY
@ AV1_FRAME_INTRA_ONLY
Definition: av1.h:55
AV1RawFilmGrainParams::ar_coeff_shift_minus_6
uint8_t ar_coeff_shift_minus_6
Definition: cbs_av1.h:153
AV1RawFilmGrainParams::num_y_points
uint8_t num_y_points
Definition: cbs_av1.h:138
AV1RawFilmGrainParams::num_cb_points
uint8_t num_cb_points
Definition: cbs_av1.h:142
AV1RawFilmGrainParams::cb_luma_mult
uint8_t cb_luma_mult
Definition: cbs_av1.h:156
AV1RawFilmGrainParams::overlap_flag
uint8_t overlap_flag
Definition: cbs_av1.h:161
AV1RawSequenceHeader::enable_masked_compound
uint8_t enable_masked_compound
Definition: cbs_av1.h:109
AV1RawFilmGrainParams::grain_scaling_minus_8
uint8_t grain_scaling_minus_8
Definition: cbs_av1.h:148
ff_nvdec_start_frame_sep_ref
int ff_nvdec_start_frame_sep_ref(AVCodecContext *avctx, AVFrame *frame, int has_sep_ref)
Definition: nvdec.c:598
av_fast_realloc
void * av_fast_realloc(void *ptr, unsigned int *size, size_t min_size)
Reallocate the given buffer if it is not large enough, otherwise do nothing.
Definition: mem.c:495
s
#define s(width, name)
Definition: cbs_vp9.c:198
NVDECFrame
Definition: nvdec.h:44
AV1_RESTORE_SGRPROJ
@ AV1_RESTORE_SGRPROJ
Definition: av1.h:174
ctx
AVFormatContext * ctx
Definition: movenc.c:48
decode.h
AV1_SEG_LVL_MAX
@ AV1_SEG_LVL_MAX
Definition: av1.h:89
av1dec.h
get_bit_depth_from_seq
static int get_bit_depth_from_seq(const AV1RawSequenceHeader *seq)
Definition: nvdec_av1.c:31
AV1_PRIMARY_REF_NONE
@ AV1_PRIMARY_REF_NONE
Definition: av1.h:86
nvdec_av1_frame_params
static int nvdec_av1_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx)
Definition: nvdec_av1.c:335
ff_nvdec_simple_end_frame
int ff_nvdec_simple_end_frame(AVCodecContext *avctx)
Definition: nvdec.c:662
AV1RawFilmGrainParams::cb_mult
uint8_t cb_mult
Definition: cbs_av1.h:155
AV_CODEC_ID_AV1
@ AV_CODEC_ID_AV1
Definition: codec_id.h:283
hwaccel_internal.h
AV1RawFrameHeader
Definition: cbs_av1.h:165
AV1_RESTORE_NONE
@ AV1_RESTORE_NONE
Definition: av1.h:172
AV1_RESTORE_WIENER
@ AV1_RESTORE_WIENER
Definition: av1.h:173
ff_nvdec_decode_init
int ff_nvdec_decode_init(AVCodecContext *avctx)
Definition: nvdec.c:326
AVCodecContext::internal
struct AVCodecInternal * internal
Private context used for internal data.
Definition: avcodec.h:480
AV1RawSequenceHeader::enable_jnt_comp
uint8_t enable_jnt_comp
Definition: cbs_av1.h:114
AV1RawFilmGrainParams::point_cr_value
uint8_t point_cr_value[10]
Definition: cbs_av1.h:146
nvdec_av1_start_frame
static int nvdec_av1_start_frame(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: nvdec_av1.c:41
AV1RawFilmGrainParams::cb_offset
uint16_t cb_offset
Definition: cbs_av1.h:157
AVCodecInternal::hwaccel_priv_data
void * hwaccel_priv_data
hwaccel-specific private data
Definition: internal.h:121
NVDECFrame::idx
unsigned int idx
Definition: nvdec.h:45
size
int size
Definition: twinvq_data.h:10344
AV1DecContext
Definition: av1dec.h:63
AV1RawSequenceHeader::use_128x128_superblock
uint8_t use_128x128_superblock
Definition: cbs_av1.h:105
nvdec_av1_decode_slice
static int nvdec_av1_decode_slice(AVCodecContext *avctx, const uint8_t *buffer, uint32_t size)
Definition: nvdec_av1.c:288
ref_frame
static int ref_frame(VVCFrame *dst, const VVCFrame *src)
Definition: vvcdec.c:552
nvdec.h
AV1RawFilmGrainParams::grain_scale_shift
uint8_t grain_scale_shift
Definition: cbs_av1.h:154
AV1RawSequenceHeader::enable_interintra_compound
uint8_t enable_interintra_compound
Definition: cbs_av1.h:108
ff_nvdec_decode_uninit
int ff_nvdec_decode_uninit(AVCodecContext *avctx)
Definition: nvdec.c:258
AVFrame::private_ref
AVBufferRef * private_ref
AVBufferRef for internal use by a single libav* library.
Definition: frame.h:797
AVHWAccel::name
const char * name
Name of the hardware accelerated codec.
Definition: avcodec.h:2139
AV1_REFS_PER_FRAME
@ AV1_REFS_PER_FRAME
Definition: av1.h:84
AV1_MAX_SEGMENTS
@ AV1_MAX_SEGMENTS
Definition: av1.h:88
i
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:255
AV1RawSequenceHeader::enable_dual_filter
uint8_t enable_dual_filter
Definition: cbs_av1.h:111
frame_type
frame_type
Definition: jpeg2000_parser.c:31
AV1RawSequenceHeader::enable_superres
uint8_t enable_superres
Definition: cbs_av1.h:124
AV1_FRAME_KEY
@ AV1_FRAME_KEY
Definition: av1.h:53
AV1RawSequenceHeader::enable_intra_edge_filter
uint8_t enable_intra_edge_filter
Definition: cbs_av1.h:107
AV1RawSequenceHeader::color_config
AV1RawColorConfig color_config
Definition: cbs_av1.h:128
AV1RawSequenceHeader::enable_order_hint
uint8_t enable_order_hint
Definition: cbs_av1.h:113
avcodec.h
ret
ret
Definition: filter_design.txt:187
AV1RawColorConfig::subsampling_x
uint8_t subsampling_x
Definition: cbs_av1.h:52
AV1RawColorConfig::high_bitdepth
uint8_t high_bitdepth
Definition: cbs_av1.h:42
AV1RawFilmGrainParams::cr_luma_mult
uint8_t cr_luma_mult
Definition: cbs_av1.h:159
AVCodecContext
main external API structure.
Definition: avcodec.h:445
AVFrame::height
int height
Definition: frame.h:412
frame_header
Definition: truemotion1.c:88
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_nvdec_frame_params
int ff_nvdec_frame_params(AVCodecContext *avctx, AVBufferRef *hw_frames_ctx, int dpb_size, int supports_444)
Definition: nvdec.c:692
AV1RawFilmGrainParams::ar_coeff_lag
uint8_t ar_coeff_lag
Definition: cbs_av1.h:149
AV1RawColorConfig::mono_chrome
uint8_t mono_chrome
Definition: cbs_av1.h:44
AVCodecContext::export_side_data
int export_side_data
Bit set of AV_CODEC_EXPORT_DATA_* flags, which affects the kind of metadata exported in frame,...
Definition: avcodec.h:2061
AV1RawFilmGrainParams::ar_coeffs_cb_plus_128
uint8_t ar_coeffs_cb_plus_128[25]
Definition: cbs_av1.h:151
AV1RawFilmGrainParams::ar_coeffs_y_plus_128
uint8_t ar_coeffs_y_plus_128[24]
Definition: cbs_av1.h:150
AV1RawSequenceHeader::order_hint_bits_minus_1
uint8_t order_hint_bits_minus_1
Definition: cbs_av1.h:122
AV1RawFilmGrainParams::cr_offset
uint16_t cr_offset
Definition: cbs_av1.h:160
AV1RawFilmGrainParams::point_y_scaling
uint8_t point_y_scaling[14]
Definition: cbs_av1.h:140
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVBufferRef
A reference to a data buffer.
Definition: buffer.h:82
AV1RawFilmGrainParams::point_cb_scaling
uint8_t point_cb_scaling[10]
Definition: cbs_av1.h:144
AV1RawSequenceHeader::enable_restoration
uint8_t enable_restoration
Definition: cbs_av1.h:126
AV1RawColorConfig::twelve_bit
uint8_t twelve_bit
Definition: cbs_av1.h:43
AVCodecContext::priv_data
void * priv_data
Definition: avcodec.h:472
AV1RawSequenceHeader::enable_cdef
uint8_t enable_cdef
Definition: cbs_av1.h:125
FrameDecodeData::hwaccel_priv
void * hwaccel_priv
Per-frame private data for hwaccels.
Definition: decode.h:51
AV1RawFilmGrainParams
Definition: cbs_av1.h:133
AV1_RESTORE_SWITCHABLE
@ AV1_RESTORE_SWITCHABLE
Definition: av1.h:175
NVDECContext
Definition: nvdec.h:52
short
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 default minimum maximum flags name is the option keep it simple and lowercase description are short
Definition: writing_filters.txt:89
AV1RawFilmGrainParams::num_cr_points
uint8_t num_cr_points
Definition: cbs_av1.h:145
AV_CODEC_EXPORT_DATA_FILM_GRAIN
#define AV_CODEC_EXPORT_DATA_FILM_GRAIN
Decoding only.
Definition: avcodec.h:420
ff_av1_nvdec_hwaccel
const FFHWAccel ff_av1_nvdec_hwaccel
Definition: nvdec_av1.c:341