| File: | root/firefox-clang/media/ffvpx/libavcodec/vulkan_vp9.c |
| Warning: | line 142, column 9 Value stored to 'frame_id_alloc_mask' is never read |
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| 1 | /* |
| 2 | * This file is part of FFmpeg. |
| 3 | * |
| 4 | * FFmpeg is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * FFmpeg is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public |
| 15 | * License along with FFmpeg; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | #include "vp9dec.h" |
| 20 | |
| 21 | #include "vulkan_decode.h" |
| 22 | |
| 23 | const FFVulkanDecodeDescriptor ff_vk_dec_vp9_desc = { |
| 24 | .codec_id = AV_CODEC_ID_VP9, |
| 25 | .decode_extension = FF_VK_EXT_VIDEO_DECODE_VP9(1ULL << 43), |
| 26 | .queue_flags = VK_QUEUE_VIDEO_DECODE_BIT_KHR, |
| 27 | .decode_op = VK_VIDEO_CODEC_OPERATION_DECODE_VP9_BIT_KHR, |
| 28 | .ext_props = { |
| 29 | .extensionName = VK_STD_VULKAN_VIDEO_CODEC_VP9_DECODE_EXTENSION_NAME"VK_STD_vulkan_video_codec_vp9_decode", |
| 30 | .specVersion = VK_STD_VULKAN_VIDEO_CODEC_VP9_DECODE_SPEC_VERSION((((uint32_t)(1)) << 22) | (((uint32_t)(0)) << 12 ) | ((uint32_t)(0))), |
| 31 | }, |
| 32 | }; |
| 33 | |
| 34 | typedef struct VP9VulkanDecodePicture { |
| 35 | FFVulkanDecodePicture vp; |
| 36 | |
| 37 | /* TODO: investigate if this can be removed to make decoding completely |
| 38 | * independent. */ |
| 39 | FFVulkanDecodeContext *dec; |
| 40 | |
| 41 | /* Current picture */ |
| 42 | StdVideoVP9ColorConfig color_config; |
| 43 | StdVideoVP9Segmentation segmentation; |
| 44 | StdVideoVP9LoopFilter loop_filter; |
| 45 | StdVideoDecodeVP9PictureInfo std_pic_info; |
| 46 | VkVideoDecodeVP9PictureInfoKHR vp9_pic_info; |
| 47 | |
| 48 | const VP9Frame *ref_src[8]; |
| 49 | |
| 50 | uint8_t frame_id_set; |
| 51 | uint8_t frame_id; |
| 52 | uint8_t ref_frame_sign_bias_mask; |
| 53 | } VP9VulkanDecodePicture; |
| 54 | |
| 55 | static int vk_vp9_fill_pict(AVCodecContext *avctx, const VP9Frame **ref_src, |
| 56 | VkVideoReferenceSlotInfoKHR *ref_slot, /* Main structure */ |
| 57 | VkVideoPictureResourceInfoKHR *ref, /* Goes in ^ */ |
| 58 | const VP9Frame *pic, int is_current) |
| 59 | { |
| 60 | FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data; |
| 61 | FFVulkanDecodeShared *ctx = dec->shared_ctx; |
| 62 | VP9VulkanDecodePicture *hp = pic->hwaccel_picture_private; |
| 63 | FFVulkanDecodePicture *vkpic = &hp->vp; |
| 64 | |
| 65 | int err = ff_vk_decode_prepare_frame(dec, pic->tf.f, vkpic, is_current, |
| 66 | dec->dedicated_dpb); |
| 67 | if (err < 0) |
| 68 | return err; |
| 69 | |
| 70 | *ref = (VkVideoPictureResourceInfoKHR) { |
| 71 | .sType = VK_STRUCTURE_TYPE_VIDEO_PICTURE_RESOURCE_INFO_KHR, |
| 72 | .codedOffset = (VkOffset2D){ 0, 0 }, |
| 73 | .codedExtent = (VkExtent2D){ pic->tf.f->width, pic->tf.f->height }, |
| 74 | .baseArrayLayer = (dec->dedicated_dpb && ctx->common.layered_dpb) ? |
| 75 | hp->frame_id : 0, |
| 76 | .imageViewBinding = vkpic->view.ref[0], |
| 77 | }; |
| 78 | |
| 79 | *ref_slot = (VkVideoReferenceSlotInfoKHR) { |
| 80 | .sType = VK_STRUCTURE_TYPE_VIDEO_REFERENCE_SLOT_INFO_KHR, |
| 81 | .slotIndex = hp->frame_id, |
| 82 | .pPictureResource = ref, |
| 83 | }; |
| 84 | |
| 85 | if (ref_src) |
| 86 | *ref_src = pic; |
| 87 | |
| 88 | return 0; |
| 89 | } |
| 90 | |
| 91 | static enum StdVideoVP9InterpolationFilter remap_interp(uint8_t is_filter_switchable, |
| 92 | uint8_t raw_interpolation_filter_type) |
| 93 | { |
| 94 | static const enum StdVideoVP9InterpolationFilter remap[] = { |
| 95 | STD_VIDEO_VP9_INTERPOLATION_FILTER_EIGHTTAP_SMOOTH, |
| 96 | STD_VIDEO_VP9_INTERPOLATION_FILTER_EIGHTTAP, |
| 97 | STD_VIDEO_VP9_INTERPOLATION_FILTER_EIGHTTAP_SHARP, |
| 98 | STD_VIDEO_VP9_INTERPOLATION_FILTER_BILINEAR, |
| 99 | }; |
| 100 | if (is_filter_switchable) |
| 101 | return STD_VIDEO_VP9_INTERPOLATION_FILTER_SWITCHABLE; |
| 102 | return remap[raw_interpolation_filter_type]; |
| 103 | } |
| 104 | |
| 105 | static int vk_vp9_start_frame(AVCodecContext *avctx, |
| 106 | av_unused__attribute__((unused)) const AVBufferRef *buffer_ref, |
| 107 | av_unused__attribute__((unused)) const uint8_t *buffer, |
| 108 | av_unused__attribute__((unused)) uint32_t size) |
| 109 | { |
| 110 | int err; |
| 111 | int ref_count = 0; |
| 112 | const VP9Context *priv = avctx->priv_data; |
| 113 | const CodedBitstreamVP9Context *vp9 = priv->cbc->priv_data; |
| 114 | const VP9SharedContext *s = &priv->s; |
| 115 | uint32_t frame_id_alloc_mask = 0; |
| 116 | |
| 117 | const VP9Frame *pic = &s->frames[CUR_FRAME0]; |
| 118 | const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(avctx->sw_pix_fmt); |
| 119 | FFVulkanDecodeContext *dec = avctx->internal->hwaccel_priv_data; |
| 120 | uint8_t profile = (pic->frame_header->profile_high_bit << 1) | pic->frame_header->profile_low_bit; |
| 121 | |
| 122 | VP9VulkanDecodePicture *ap = pic->hwaccel_picture_private; |
| 123 | FFVulkanDecodePicture *vp = &ap->vp; |
| 124 | |
| 125 | /* Use the current frame_ids in ref_frames[] to decide occupied frame_ids */ |
| 126 | for (int i = 0; i < STD_VIDEO_VP9_NUM_REF_FRAMES8U; i++) { |
| 127 | const VP9VulkanDecodePicture* rp = s->ref_frames[i].hwaccel_picture_private; |
| 128 | if (rp) |
| 129 | frame_id_alloc_mask |= 1 << rp->frame_id; |
| 130 | } |
| 131 | |
| 132 | if (!ap->frame_id_set) { |
| 133 | unsigned slot_idx = 0; |
| 134 | for (unsigned i = 0; i < 32; i++) { |
| 135 | if (!(frame_id_alloc_mask & (1 << i))) { |
| 136 | slot_idx = i; |
| 137 | break; |
| 138 | } |
| 139 | } |
| 140 | ap->frame_id = slot_idx; |
| 141 | ap->frame_id_set = 1; |
| 142 | frame_id_alloc_mask |= (1 << slot_idx); |
Value stored to 'frame_id_alloc_mask' is never read | |
| 143 | } |
| 144 | |
| 145 | for (int i = 0; i < STD_VIDEO_VP9_REFS_PER_FRAME3U; i++) { |
| 146 | const int idx = pic->frame_header->ref_frame_idx[i]; |
| 147 | const VP9Frame *ref_frame = &s->ref_frames[idx]; |
| 148 | VP9VulkanDecodePicture *hp = ref_frame->hwaccel_picture_private; |
| 149 | int found = 0; |
| 150 | |
| 151 | if (!ref_frame->tf.f) |
| 152 | continue; |
| 153 | |
| 154 | for (int j = 0; j < ref_count; j++) { |
| 155 | if (vp->ref_slots[j].slotIndex == hp->frame_id) { |
| 156 | found = 1; |
| 157 | break; |
| 158 | } |
| 159 | } |
| 160 | if (found) |
| 161 | continue; |
| 162 | |
| 163 | err = vk_vp9_fill_pict(avctx, &ap->ref_src[ref_count], |
| 164 | &vp->ref_slots[ref_count], &vp->refs[ref_count], |
| 165 | ref_frame, 0); |
| 166 | if (err < 0) |
| 167 | return err; |
| 168 | |
| 169 | ref_count++; |
| 170 | } |
| 171 | |
| 172 | err = vk_vp9_fill_pict(avctx, NULL((void*)0), &vp->ref_slot, &vp->ref, |
| 173 | pic, 1); |
| 174 | if (err < 0) |
| 175 | return err; |
| 176 | |
| 177 | ap->loop_filter = (StdVideoVP9LoopFilter) { |
| 178 | .flags = (StdVideoVP9LoopFilterFlags) { |
| 179 | .loop_filter_delta_enabled = pic->frame_header->loop_filter_delta_enabled, |
| 180 | .loop_filter_delta_update = pic->frame_header->loop_filter_delta_update, |
| 181 | }, |
| 182 | .loop_filter_level = pic->frame_header->loop_filter_level, |
| 183 | .loop_filter_sharpness = pic->frame_header->loop_filter_sharpness, |
| 184 | .update_ref_delta = 0x0, |
| 185 | .update_mode_delta = 0x0, |
| 186 | }; |
| 187 | |
| 188 | for (int i = 0; i < STD_VIDEO_VP9_MAX_REF_FRAMES4U; i++) { |
| 189 | ap->loop_filter.loop_filter_ref_deltas[i] = vp9->loop_filter_ref_deltas[i]; |
| 190 | ap->loop_filter.update_ref_delta |= pic->frame_header->update_ref_delta[i]; |
| 191 | } |
| 192 | for (int i = 0; i < STD_VIDEO_VP9_LOOP_FILTER_ADJUSTMENTS2U; i++) { |
| 193 | ap->loop_filter.loop_filter_mode_deltas[i] = vp9->loop_filter_mode_deltas[i]; |
| 194 | ap->loop_filter.update_mode_delta |= pic->frame_header->update_mode_delta[i]; |
| 195 | } |
| 196 | |
| 197 | ap->segmentation = (StdVideoVP9Segmentation) { |
| 198 | .flags = (StdVideoVP9SegmentationFlags) { |
| 199 | .segmentation_update_map = pic->frame_header->segmentation_update_map, |
| 200 | .segmentation_temporal_update = pic->frame_header->segmentation_temporal_update, |
| 201 | .segmentation_update_data = pic->frame_header->segmentation_update_data, |
| 202 | .segmentation_abs_or_delta_update = pic->frame_header->segmentation_abs_or_delta_update, |
| 203 | }, |
| 204 | }; |
| 205 | |
| 206 | for (int i = 0; i < STD_VIDEO_VP9_MAX_SEGMENTATION_TREE_PROBS7U; i++) |
| 207 | ap->segmentation.segmentation_tree_probs[i] = vp9->segmentation_tree_probs[i]; |
| 208 | for (int i = 0; i < STD_VIDEO_VP9_MAX_SEGMENTATION_PRED_PROB3U; i++) |
| 209 | ap->segmentation.segmentation_pred_prob[i] = vp9->segmentation_pred_prob[i]; |
| 210 | for (int i = 0; i < STD_VIDEO_VP9_MAX_SEGMENTS8U; i++) { |
| 211 | ap->segmentation.FeatureEnabled[i] = 0x0; |
| 212 | for (int j = 0; j < STD_VIDEO_VP9_SEG_LVL_MAX4U; j++) { |
| 213 | ap->segmentation.FeatureEnabled[i] |= vp9->feature_enabled[i][j] << j; |
| 214 | ap->segmentation.FeatureData[i][j] = vp9->feature_sign[i][j] ? |
| 215 | -vp9->feature_value[i][j] : |
| 216 | +vp9->feature_value[i][j]; |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | ap->color_config = (StdVideoVP9ColorConfig) { |
| 221 | .flags = (StdVideoVP9ColorConfigFlags) { |
| 222 | .color_range = pic->frame_header->color_range, |
| 223 | }, |
| 224 | .BitDepth = profile < 2 ? 8 : |
| 225 | pic->frame_header->ten_or_twelve_bit ? 12 : 10, |
| 226 | .subsampling_x = pixdesc->log2_chroma_w, |
| 227 | .subsampling_y = pixdesc->log2_chroma_h, |
| 228 | |
| 229 | .color_space = pic->frame_header->color_space, |
| 230 | }; |
| 231 | |
| 232 | ap->std_pic_info = (StdVideoDecodeVP9PictureInfo) { |
| 233 | .flags = (StdVideoDecodeVP9PictureInfoFlags) { |
| 234 | .error_resilient_mode = pic->frame_header->error_resilient_mode, |
| 235 | .intra_only = pic->frame_header->intra_only, |
| 236 | .allow_high_precision_mv = pic->frame_header->allow_high_precision_mv, |
| 237 | .refresh_frame_context = pic->frame_header->refresh_frame_context, |
| 238 | .frame_parallel_decoding_mode = pic->frame_header->frame_parallel_decoding_mode, |
| 239 | .segmentation_enabled = pic->frame_header->segmentation_enabled, |
| 240 | .show_frame = !s->h.invisible, |
| 241 | .UsePrevFrameMvs = s->h.use_last_frame_mvs, |
| 242 | }, |
| 243 | .profile = profile, |
| 244 | .frame_type = pic->frame_header->frame_type, |
| 245 | .frame_context_idx = pic->frame_header->frame_context_idx, |
| 246 | .reset_frame_context = pic->frame_header->reset_frame_context, |
| 247 | .refresh_frame_flags = pic->frame_header->refresh_frame_flags, |
| 248 | .ref_frame_sign_bias_mask = 0x0, |
| 249 | .interpolation_filter = remap_interp(pic->frame_header->is_filter_switchable, |
| 250 | pic->frame_header->raw_interpolation_filter_type), |
| 251 | .base_q_idx = pic->frame_header->base_q_idx, |
| 252 | .delta_q_y_dc = pic->frame_header->delta_q_y_dc, |
| 253 | .delta_q_uv_dc = pic->frame_header->delta_q_uv_dc, |
| 254 | .delta_q_uv_ac = pic->frame_header->delta_q_uv_ac, |
| 255 | .tile_cols_log2 = pic->frame_header->tile_cols_log2, |
| 256 | .tile_rows_log2 = pic->frame_header->tile_rows_log2, |
| 257 | /* Reserved */ |
| 258 | .pColorConfig = &ap->color_config, |
| 259 | .pLoopFilter = &ap->loop_filter, |
| 260 | .pSegmentation = &ap->segmentation, |
| 261 | }; |
| 262 | |
| 263 | for (int i = VP9_LAST_FRAME; i <= VP9_ALTREF_FRAME; i++) |
| 264 | ap->std_pic_info.ref_frame_sign_bias_mask |= pic->frame_header->ref_frame_sign_bias[i] << i; |
| 265 | |
| 266 | ap->vp9_pic_info = (VkVideoDecodeVP9PictureInfoKHR) { |
| 267 | .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_VP9_PICTURE_INFO_KHR, |
| 268 | .pStdPictureInfo = &ap->std_pic_info, |
| 269 | .uncompressedHeaderOffset = 0, |
| 270 | .compressedHeaderOffset = s->h.uncompressed_header_size, |
| 271 | .tilesOffset = s->h.uncompressed_header_size + |
| 272 | s->h.compressed_header_size, |
| 273 | }; |
| 274 | |
| 275 | for (int i = 0; i < STD_VIDEO_VP9_REFS_PER_FRAME3U; i++) { |
| 276 | const int idx = pic->frame_header->ref_frame_idx[i]; |
| 277 | const VP9Frame *ref_frame = &s->ref_frames[idx]; |
| 278 | VP9VulkanDecodePicture *hp = ref_frame->hwaccel_picture_private; |
| 279 | |
| 280 | if (!ref_frame->tf.f) |
| 281 | ap->vp9_pic_info.referenceNameSlotIndices[i] = -1; |
| 282 | else |
| 283 | ap->vp9_pic_info.referenceNameSlotIndices[i] = hp->frame_id; |
| 284 | } |
| 285 | |
| 286 | vp->decode_info = (VkVideoDecodeInfoKHR) { |
| 287 | .sType = VK_STRUCTURE_TYPE_VIDEO_DECODE_INFO_KHR, |
| 288 | .pNext = &ap->vp9_pic_info, |
| 289 | .flags = 0x0, |
| 290 | .pSetupReferenceSlot = &vp->ref_slot, |
| 291 | .referenceSlotCount = ref_count, |
| 292 | .pReferenceSlots = vp->ref_slots, |
| 293 | .dstPictureResource = (VkVideoPictureResourceInfoKHR) { |
| 294 | .sType = VK_STRUCTURE_TYPE_VIDEO_PICTURE_RESOURCE_INFO_KHR, |
| 295 | .codedOffset = (VkOffset2D){ 0, 0 }, |
| 296 | .codedExtent = (VkExtent2D){ pic->tf.f->width, pic->tf.f->height }, |
| 297 | .baseArrayLayer = 0, |
| 298 | .imageViewBinding = vp->view.out[0], |
| 299 | }, |
| 300 | }; |
| 301 | |
| 302 | ap->dec = dec; |
| 303 | |
| 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | static int vk_vp9_decode_slice(AVCodecContext *avctx, |
| 308 | const uint8_t *data, |
| 309 | uint32_t size) |
| 310 | { |
| 311 | int err; |
| 312 | const VP9SharedContext *s = avctx->priv_data; |
| 313 | VP9VulkanDecodePicture *ap = s->frames[CUR_FRAME0].hwaccel_picture_private; |
| 314 | FFVulkanDecodePicture *vp = &ap->vp; |
| 315 | |
| 316 | err = ff_vk_decode_add_slice(avctx, vp, data, size, 0, NULL((void*)0), NULL((void*)0)); |
| 317 | if (err < 0) |
| 318 | return err; |
| 319 | |
| 320 | return 0; |
| 321 | } |
| 322 | |
| 323 | static int vk_vp9_end_frame(AVCodecContext *avctx) |
| 324 | { |
| 325 | const VP9SharedContext *s = avctx->priv_data; |
| 326 | |
| 327 | const VP9Frame *pic = &s->frames[CUR_FRAME0]; |
| 328 | VP9VulkanDecodePicture *ap = pic->hwaccel_picture_private; |
| 329 | FFVulkanDecodePicture *vp = &ap->vp; |
| 330 | FFVulkanDecodePicture *rvp[STD_VIDEO_VP9_REFS_PER_FRAME3U] = { 0 }; |
| 331 | AVFrame *rav[STD_VIDEO_VP9_REFS_PER_FRAME3U] = { 0 }; |
| 332 | |
| 333 | for (int i = 0; i < vp->decode_info.referenceSlotCount; i++) { |
| 334 | const VP9Frame *rp = ap->ref_src[i]; |
| 335 | VP9VulkanDecodePicture *rhp = rp->hwaccel_picture_private; |
| 336 | |
| 337 | rvp[i] = &rhp->vp; |
| 338 | rav[i] = ap->ref_src[i]->tf.f; |
| 339 | } |
| 340 | |
| 341 | av_log(avctx, AV_LOG_VERBOSE40, "Decoding frame, %zu bytes\n", |
| 342 | vp->slices_size); |
| 343 | |
| 344 | return ff_vk_decode_frame(avctx, pic->tf.f, vp, rav, rvp); |
| 345 | } |
| 346 | |
| 347 | static void vk_vp9_free_frame_priv(AVRefStructOpaque _hwctx, void *data) |
| 348 | { |
| 349 | AVHWDeviceContext *hwctx = _hwctx.nc; |
| 350 | VP9VulkanDecodePicture *ap = data; |
| 351 | |
| 352 | /* Free frame resources, this also destroys the session parameters. */ |
| 353 | ff_vk_decode_free_frame(hwctx, &ap->vp); |
| 354 | } |
| 355 | |
| 356 | const FFHWAccel ff_vp9_vulkan_hwaccel = { |
| 357 | .p.name = "vp9_vulkan", |
| 358 | .p.type = AVMEDIA_TYPE_VIDEO, |
| 359 | .p.id = AV_CODEC_ID_VP9, |
| 360 | .p.pix_fmt = AV_PIX_FMT_VULKAN, |
| 361 | .start_frame = &vk_vp9_start_frame, |
| 362 | .decode_slice = &vk_vp9_decode_slice, |
| 363 | .end_frame = &vk_vp9_end_frame, |
| 364 | .free_frame_priv = &vk_vp9_free_frame_priv, |
| 365 | .frame_priv_data_size = sizeof(VP9VulkanDecodePicture), |
| 366 | .init = &ff_vk_decode_init, |
| 367 | .update_thread_context = &ff_vk_update_thread_context, |
| 368 | .uninit = &ff_vk_decode_uninit, |
| 369 | .frame_params = &ff_vk_frame_params, |
| 370 | .priv_data_size = sizeof(FFVulkanDecodeContext), |
| 371 | .caps_internal = HWACCEL_CAP_ASYNC_SAFE(1 << 0), |
| 372 | }; |