| 1 | /* |
| 2 | * VDA H264 HW acceleration. |
| 3 | * |
| 4 | * copyright (c) 2011 Sebastien Zwickert |
| 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 <CoreFoundation/CFDictionary.h> |
| 24 | #include <CoreFoundation/CFNumber.h> |
| 25 | #include <CoreFoundation/CFData.h> |
| 26 | |
| 27 | #include "vda.h" |
| 28 | #include "libavutil/avutil.h" |
| 29 | #include "h264.h" |
| 30 | |
| 31 | struct vda_buffer { |
| 32 | CVPixelBufferRef cv_buffer; |
| 33 | }; |
| 34 | #include "internal.h" |
| 35 | #include "vda_internal.h" |
| 36 | |
| 37 | typedef struct VDAContext { |
| 38 | // The current bitstream buffer. |
| 39 | uint8_t *bitstream; |
| 40 | |
| 41 | // The current size of the bitstream. |
| 42 | int bitstream_size; |
| 43 | |
| 44 | // The reference size used for fast reallocation. |
| 45 | int allocated_size; |
| 46 | |
| 47 | CVImageBufferRef frame; |
| 48 | } VDAContext; |
| 49 | |
| 50 | /* Decoder callback that adds the vda frame to the queue in display order. */ |
| 51 | static void vda_decoder_callback(void *vda_hw_ctx, |
| 52 | CFDictionaryRef user_info, |
| 53 | OSStatus status, |
| 54 | uint32_t infoFlags, |
| 55 | CVImageBufferRef image_buffer) |
| 56 | { |
| 57 | struct vda_context *vda_ctx = vda_hw_ctx; |
| 58 | |
| 59 | if (infoFlags & kVDADecodeInfo_FrameDropped) |
| 60 | vda_ctx->cv_buffer = NULL; |
| 61 | |
| 62 | if (!image_buffer) |
| 63 | return; |
| 64 | |
| 65 | if (vda_ctx->cv_pix_fmt_type != CVPixelBufferGetPixelFormatType(image_buffer)) |
| 66 | return; |
| 67 | |
| 68 | vda_ctx->cv_buffer = CVPixelBufferRetain(image_buffer); |
| 69 | } |
| 70 | |
| 71 | static int vda_sync_decode(VDAContext *ctx, struct vda_context *vda_ctx) |
| 72 | { |
| 73 | OSStatus status; |
| 74 | CFDataRef coded_frame; |
| 75 | uint32_t flush_flags = 1 << 0; ///< kVDADecoderFlush_emitFrames |
| 76 | |
| 77 | coded_frame = CFDataCreate(kCFAllocatorDefault, |
| 78 | ctx->bitstream, |
| 79 | ctx->bitstream_size); |
| 80 | |
| 81 | status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, NULL); |
| 82 | |
| 83 | if (kVDADecoderNoErr == status) |
| 84 | status = VDADecoderFlush(vda_ctx->decoder, flush_flags); |
| 85 | |
| 86 | CFRelease(coded_frame); |
| 87 | |
| 88 | return status; |
| 89 | } |
| 90 | |
| 91 | |
| 92 | static int vda_old_h264_start_frame(AVCodecContext *avctx, |
| 93 | av_unused const uint8_t *buffer, |
| 94 | av_unused uint32_t size) |
| 95 | { |
| 96 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 97 | struct vda_context *vda_ctx = avctx->hwaccel_context; |
| 98 | |
| 99 | if (!vda_ctx->decoder) |
| 100 | return -1; |
| 101 | |
| 102 | vda->bitstream_size = 0; |
| 103 | |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | static int vda_old_h264_decode_slice(AVCodecContext *avctx, |
| 108 | const uint8_t *buffer, |
| 109 | uint32_t size) |
| 110 | { |
| 111 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 112 | struct vda_context *vda_ctx = avctx->hwaccel_context; |
| 113 | void *tmp; |
| 114 | |
| 115 | if (!vda_ctx->decoder) |
| 116 | return -1; |
| 117 | |
| 118 | tmp = av_fast_realloc(vda->bitstream, |
| 119 | &vda->allocated_size, |
| 120 | vda->bitstream_size + size + 4); |
| 121 | if (!tmp) |
| 122 | return AVERROR(ENOMEM); |
| 123 | |
| 124 | vda->bitstream = tmp; |
| 125 | |
| 126 | AV_WB32(vda->bitstream + vda->bitstream_size, size); |
| 127 | memcpy(vda->bitstream + vda->bitstream_size + 4, buffer, size); |
| 128 | |
| 129 | vda->bitstream_size += size + 4; |
| 130 | |
| 131 | return 0; |
| 132 | } |
| 133 | |
| 134 | static void vda_h264_release_buffer(void *opaque, uint8_t *data) |
| 135 | { |
| 136 | struct vda_buffer *context = opaque; |
| 137 | CVPixelBufferRelease(context->cv_buffer); |
| 138 | av_free(context); |
| 139 | } |
| 140 | |
| 141 | static int vda_old_h264_end_frame(AVCodecContext *avctx) |
| 142 | { |
| 143 | H264Context *h = avctx->priv_data; |
| 144 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 145 | struct vda_context *vda_ctx = avctx->hwaccel_context; |
| 146 | AVFrame *frame = &h->cur_pic_ptr->f; |
| 147 | struct vda_buffer *context; |
| 148 | AVBufferRef *buffer; |
| 149 | int status; |
| 150 | |
| 151 | if (!vda_ctx->decoder || !vda->bitstream) |
| 152 | return -1; |
| 153 | |
| 154 | status = vda_sync_decode(vda, vda_ctx); |
| 155 | frame->data[3] = (void*)vda_ctx->cv_buffer; |
| 156 | |
| 157 | if (status) |
| 158 | av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status); |
| 159 | |
| 160 | if (!vda_ctx->use_ref_buffer || status) |
| 161 | return status; |
| 162 | |
| 163 | context = av_mallocz(sizeof(*context)); |
| 164 | buffer = av_buffer_create(NULL, 0, vda_h264_release_buffer, context, 0); |
| 165 | if (!context || !buffer) { |
| 166 | CVPixelBufferRelease(vda_ctx->cv_buffer); |
| 167 | av_free(context); |
| 168 | return -1; |
| 169 | } |
| 170 | |
| 171 | context->cv_buffer = vda_ctx->cv_buffer; |
| 172 | frame->buf[3] = buffer; |
| 173 | |
| 174 | return status; |
| 175 | } |
| 176 | |
| 177 | int ff_vda_create_decoder(struct vda_context *vda_ctx, |
| 178 | uint8_t *extradata, |
| 179 | int extradata_size) |
| 180 | { |
| 181 | OSStatus status; |
| 182 | CFNumberRef height; |
| 183 | CFNumberRef width; |
| 184 | CFNumberRef format; |
| 185 | CFDataRef avc_data; |
| 186 | CFMutableDictionaryRef config_info; |
| 187 | CFMutableDictionaryRef buffer_attributes; |
| 188 | CFMutableDictionaryRef io_surface_properties; |
| 189 | CFNumberRef cv_pix_fmt; |
| 190 | |
| 191 | vda_ctx->priv_bitstream = NULL; |
| 192 | vda_ctx->priv_allocated_size = 0; |
| 193 | |
| 194 | /* Each VCL NAL in the bitstream sent to the decoder |
| 195 | * is preceded by a 4 bytes length header. |
| 196 | * Change the avcC atom header if needed, to signal headers of 4 bytes. */ |
| 197 | if (extradata_size >= 4 && (extradata[4] & 0x03) != 0x03) { |
| 198 | uint8_t *rw_extradata; |
| 199 | |
| 200 | if (!(rw_extradata = av_malloc(extradata_size))) |
| 201 | return AVERROR(ENOMEM); |
| 202 | |
| 203 | memcpy(rw_extradata, extradata, extradata_size); |
| 204 | |
| 205 | rw_extradata[4] |= 0x03; |
| 206 | |
| 207 | avc_data = CFDataCreate(kCFAllocatorDefault, rw_extradata, extradata_size); |
| 208 | |
| 209 | av_freep(&rw_extradata); |
| 210 | } else { |
| 211 | avc_data = CFDataCreate(kCFAllocatorDefault, extradata, extradata_size); |
| 212 | } |
| 213 | |
| 214 | config_info = CFDictionaryCreateMutable(kCFAllocatorDefault, |
| 215 | 4, |
| 216 | &kCFTypeDictionaryKeyCallBacks, |
| 217 | &kCFTypeDictionaryValueCallBacks); |
| 218 | |
| 219 | height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->height); |
| 220 | width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->width); |
| 221 | format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->format); |
| 222 | |
| 223 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height); |
| 224 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width); |
| 225 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_SourceFormat, format); |
| 226 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_avcCData, avc_data); |
| 227 | |
| 228 | buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault, |
| 229 | 2, |
| 230 | &kCFTypeDictionaryKeyCallBacks, |
| 231 | &kCFTypeDictionaryValueCallBacks); |
| 232 | io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault, |
| 233 | 0, |
| 234 | &kCFTypeDictionaryKeyCallBacks, |
| 235 | &kCFTypeDictionaryValueCallBacks); |
| 236 | cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault, |
| 237 | kCFNumberSInt32Type, |
| 238 | &vda_ctx->cv_pix_fmt_type); |
| 239 | CFDictionarySetValue(buffer_attributes, |
| 240 | kCVPixelBufferPixelFormatTypeKey, |
| 241 | cv_pix_fmt); |
| 242 | CFDictionarySetValue(buffer_attributes, |
| 243 | kCVPixelBufferIOSurfacePropertiesKey, |
| 244 | io_surface_properties); |
| 245 | |
| 246 | status = VDADecoderCreate(config_info, |
| 247 | buffer_attributes, |
| 248 | (VDADecoderOutputCallback *)vda_decoder_callback, |
| 249 | vda_ctx, |
| 250 | &vda_ctx->decoder); |
| 251 | |
| 252 | CFRelease(height); |
| 253 | CFRelease(width); |
| 254 | CFRelease(format); |
| 255 | CFRelease(avc_data); |
| 256 | CFRelease(config_info); |
| 257 | CFRelease(io_surface_properties); |
| 258 | CFRelease(cv_pix_fmt); |
| 259 | CFRelease(buffer_attributes); |
| 260 | |
| 261 | return status; |
| 262 | } |
| 263 | |
| 264 | int ff_vda_destroy_decoder(struct vda_context *vda_ctx) |
| 265 | { |
| 266 | OSStatus status = kVDADecoderNoErr; |
| 267 | |
| 268 | if (vda_ctx->decoder) |
| 269 | status = VDADecoderDestroy(vda_ctx->decoder); |
| 270 | |
| 271 | return status; |
| 272 | } |
| 273 | |
| 274 | static int vda_h264_uninit(AVCodecContext *avctx) |
| 275 | { |
| 276 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 277 | if (vda) { |
| 278 | av_freep(&vda->bitstream); |
| 279 | if (vda->frame) |
| 280 | CVPixelBufferRelease(vda->frame); |
| 281 | } |
| 282 | return 0; |
| 283 | } |
| 284 | |
| 285 | AVHWAccel ff_h264_vda_old_hwaccel = { |
| 286 | .name = "h264_vda", |
| 287 | .type = AVMEDIA_TYPE_VIDEO, |
| 288 | .id = AV_CODEC_ID_H264, |
| 289 | .pix_fmt = AV_PIX_FMT_VDA_VLD, |
| 290 | .start_frame = vda_old_h264_start_frame, |
| 291 | .decode_slice = vda_old_h264_decode_slice, |
| 292 | .end_frame = vda_old_h264_end_frame, |
| 293 | .uninit = vda_h264_uninit, |
| 294 | .priv_data_size = sizeof(VDAContext), |
| 295 | }; |
| 296 | |
| 297 | void ff_vda_output_callback(void *opaque, |
| 298 | CFDictionaryRef user_info, |
| 299 | OSStatus status, |
| 300 | uint32_t infoFlags, |
| 301 | CVImageBufferRef image_buffer) |
| 302 | { |
| 303 | AVCodecContext *ctx = opaque; |
| 304 | VDAContext *vda = ctx->internal->hwaccel_priv_data; |
| 305 | |
| 306 | |
| 307 | if (vda->frame) { |
| 308 | CVPixelBufferRelease(vda->frame); |
| 309 | vda->frame = NULL; |
| 310 | } |
| 311 | |
| 312 | if (!image_buffer) |
| 313 | return; |
| 314 | |
| 315 | vda->frame = CVPixelBufferRetain(image_buffer); |
| 316 | } |
| 317 | |
| 318 | static int vda_h264_start_frame(AVCodecContext *avctx, |
| 319 | const uint8_t *buffer, |
| 320 | uint32_t size) |
| 321 | { |
| 322 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 323 | |
| 324 | vda->bitstream_size = 0; |
| 325 | |
| 326 | return 0; |
| 327 | } |
| 328 | |
| 329 | static int vda_h264_decode_slice(AVCodecContext *avctx, |
| 330 | const uint8_t *buffer, |
| 331 | uint32_t size) |
| 332 | { |
| 333 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 334 | void *tmp; |
| 335 | |
| 336 | tmp = av_fast_realloc(vda->bitstream, |
| 337 | &vda->allocated_size, |
| 338 | vda->bitstream_size + size + 4); |
| 339 | if (!tmp) |
| 340 | return AVERROR(ENOMEM); |
| 341 | |
| 342 | vda->bitstream = tmp; |
| 343 | |
| 344 | AV_WB32(vda->bitstream + vda->bitstream_size, size); |
| 345 | memcpy(vda->bitstream + vda->bitstream_size + 4, buffer, size); |
| 346 | |
| 347 | vda->bitstream_size += size + 4; |
| 348 | |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | static void release_buffer(void *opaque, uint8_t *data) |
| 353 | { |
| 354 | CVImageBufferRef frame = (CVImageBufferRef)data; |
| 355 | CVPixelBufferRelease(frame); |
| 356 | } |
| 357 | |
| 358 | static int vda_h264_end_frame(AVCodecContext *avctx) |
| 359 | { |
| 360 | H264Context *h = avctx->priv_data; |
| 361 | VDAContext *vda = avctx->internal->hwaccel_priv_data; |
| 362 | AVVDAContext *vda_ctx = avctx->hwaccel_context; |
| 363 | AVFrame *frame = &h->cur_pic_ptr->f; |
| 364 | uint32_t flush_flags = 1 << 0; ///< kVDADecoderFlush_emitFrames |
| 365 | CFDataRef coded_frame; |
| 366 | OSStatus status; |
| 367 | |
| 368 | if (!vda->bitstream_size) |
| 369 | return AVERROR_INVALIDDATA; |
| 370 | |
| 371 | |
| 372 | coded_frame = CFDataCreate(kCFAllocatorDefault, |
| 373 | vda->bitstream, |
| 374 | vda->bitstream_size); |
| 375 | |
| 376 | status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, NULL); |
| 377 | |
| 378 | if (status == kVDADecoderNoErr) |
| 379 | status = VDADecoderFlush(vda_ctx->decoder, flush_flags); |
| 380 | |
| 381 | CFRelease(coded_frame); |
| 382 | |
| 383 | if (status != kVDADecoderNoErr) { |
| 384 | av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status); |
| 385 | return AVERROR_UNKNOWN; |
| 386 | } |
| 387 | |
| 388 | if (vda->frame) { |
| 389 | av_buffer_unref(&frame->buf[0]); |
| 390 | |
| 391 | frame->buf[0] = av_buffer_create((uint8_t*)vda->frame, |
| 392 | sizeof(vda->frame), |
| 393 | release_buffer, NULL, |
| 394 | AV_BUFFER_FLAG_READONLY); |
| 395 | if (!frame->buf) |
| 396 | return AVERROR(ENOMEM); |
| 397 | |
| 398 | frame->data[3] = (uint8_t*)vda->frame; |
| 399 | vda->frame = NULL; |
| 400 | } |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | int ff_vda_default_init(AVCodecContext *avctx) |
| 406 | { |
| 407 | AVVDAContext *vda_ctx = avctx->hwaccel_context; |
| 408 | OSStatus status = kVDADecoderNoErr; |
| 409 | CFNumberRef height; |
| 410 | CFNumberRef width; |
| 411 | CFNumberRef format; |
| 412 | CFDataRef avc_data; |
| 413 | CFMutableDictionaryRef config_info; |
| 414 | CFMutableDictionaryRef buffer_attributes; |
| 415 | CFMutableDictionaryRef io_surface_properties; |
| 416 | CFNumberRef cv_pix_fmt; |
| 417 | int32_t fmt = 'avc1', pix_fmt = kCVPixelFormatType_422YpCbCr8; |
| 418 | |
| 419 | // kCVPixelFormatType_420YpCbCr8Planar; |
| 420 | |
| 421 | /* Each VCL NAL in the bitstream sent to the decoder |
| 422 | * is preceded by a 4 bytes length header. |
| 423 | * Change the avcC atom header if needed, to signal headers of 4 bytes. */ |
| 424 | if (avctx->extradata_size >= 4 && (avctx->extradata[4] & 0x03) != 0x03) { |
| 425 | uint8_t *rw_extradata; |
| 426 | |
| 427 | if (!(rw_extradata = av_malloc(avctx->extradata_size))) |
| 428 | return AVERROR(ENOMEM); |
| 429 | |
| 430 | memcpy(rw_extradata, avctx->extradata, avctx->extradata_size); |
| 431 | |
| 432 | rw_extradata[4] |= 0x03; |
| 433 | |
| 434 | avc_data = CFDataCreate(kCFAllocatorDefault, rw_extradata, avctx->extradata_size); |
| 435 | |
| 436 | av_freep(&rw_extradata); |
| 437 | } else { |
| 438 | avc_data = CFDataCreate(kCFAllocatorDefault, |
| 439 | avctx->extradata, avctx->extradata_size); |
| 440 | } |
| 441 | |
| 442 | config_info = CFDictionaryCreateMutable(kCFAllocatorDefault, |
| 443 | 4, |
| 444 | &kCFTypeDictionaryKeyCallBacks, |
| 445 | &kCFTypeDictionaryValueCallBacks); |
| 446 | |
| 447 | height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &avctx->height); |
| 448 | width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &avctx->width); |
| 449 | format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &fmt); |
| 450 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height); |
| 451 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width); |
| 452 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_avcCData, avc_data); |
| 453 | CFDictionarySetValue(config_info, kVDADecoderConfiguration_SourceFormat, format); |
| 454 | |
| 455 | buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault, |
| 456 | 2, |
| 457 | &kCFTypeDictionaryKeyCallBacks, |
| 458 | &kCFTypeDictionaryValueCallBacks); |
| 459 | io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault, |
| 460 | 0, |
| 461 | &kCFTypeDictionaryKeyCallBacks, |
| 462 | &kCFTypeDictionaryValueCallBacks); |
| 463 | cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault, |
| 464 | kCFNumberSInt32Type, |
| 465 | &pix_fmt); |
| 466 | |
| 467 | CFDictionarySetValue(buffer_attributes, |
| 468 | kCVPixelBufferPixelFormatTypeKey, |
| 469 | cv_pix_fmt); |
| 470 | CFDictionarySetValue(buffer_attributes, |
| 471 | kCVPixelBufferIOSurfacePropertiesKey, |
| 472 | io_surface_properties); |
| 473 | |
| 474 | status = VDADecoderCreate(config_info, |
| 475 | buffer_attributes, |
| 476 | (VDADecoderOutputCallback *)ff_vda_output_callback, |
| 477 | avctx, |
| 478 | &vda_ctx->decoder); |
| 479 | |
| 480 | CFRelease(format); |
| 481 | CFRelease(height); |
| 482 | CFRelease(width); |
| 483 | CFRelease(avc_data); |
| 484 | CFRelease(config_info); |
| 485 | CFRelease(cv_pix_fmt); |
| 486 | CFRelease(io_surface_properties); |
| 487 | CFRelease(buffer_attributes); |
| 488 | |
| 489 | if (status != kVDADecoderNoErr) { |
| 490 | av_log(avctx, AV_LOG_ERROR, "Cannot initialize VDA %d\n", status); |
| 491 | } |
| 492 | |
| 493 | switch (status) { |
| 494 | case kVDADecoderHardwareNotSupportedErr: |
| 495 | case kVDADecoderFormatNotSupportedErr: |
| 496 | return AVERROR(ENOSYS); |
| 497 | case kVDADecoderConfigurationError: |
| 498 | return AVERROR(EINVAL); |
| 499 | case kVDADecoderDecoderFailedErr: |
| 500 | return AVERROR_INVALIDDATA; |
| 501 | case kVDADecoderNoErr: |
| 502 | return 0; |
| 503 | default: |
| 504 | return AVERROR_UNKNOWN; |
| 505 | } |
| 506 | } |
| 507 | |
| 508 | static int vda_h264_alloc_frame(AVCodecContext *avctx, AVFrame *frame) |
| 509 | { |
| 510 | frame->width = avctx->width; |
| 511 | frame->height = avctx->height; |
| 512 | frame->format = avctx->pix_fmt; |
| 513 | frame->buf[0] = av_buffer_alloc(1); |
| 514 | |
| 515 | if (!frame->buf[0]) |
| 516 | return AVERROR(ENOMEM); |
| 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | AVHWAccel ff_h264_vda_hwaccel = { |
| 521 | .name = "h264_vda", |
| 522 | .type = AVMEDIA_TYPE_VIDEO, |
| 523 | .id = AV_CODEC_ID_H264, |
| 524 | .pix_fmt = AV_PIX_FMT_VDA, |
| 525 | .alloc_frame = vda_h264_alloc_frame, |
| 526 | .start_frame = vda_h264_start_frame, |
| 527 | .decode_slice = vda_h264_decode_slice, |
| 528 | .end_frame = vda_h264_end_frame, |
| 529 | .uninit = vda_h264_uninit, |
| 530 | .priv_data_size = sizeof(VDAContext), |
| 531 | }; |