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| | 1 | /* |
| | 2 | * libxevd decoder |
| | 3 | * EVC (MPEG-5 Essential Video Coding) decoding using XEVD MPEG-5 EVC decoder library |
| | 4 | * |
| | 5 | * Copyright (C) 2021 Dawid Kozinski <d.kozinski@samsung.com> |
| | 6 | * |
| | 7 | * This file is part of FFmpeg. |
| | 8 | * |
| | 9 | * FFmpeg is free software; you can redistribute it and/or |
| | 10 | * modify it under the terms of the GNU Lesser General Public |
| | 11 | * License as published by the Free Software Foundation; either |
| | 12 | * version 2.1 of the License, or (at your option) any later version. |
| | 13 | * |
| | 14 | * FFmpeg is distributed in the hope that it will be useful, |
| | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 17 | * Lesser General Public License for more details. |
| | 18 | * |
| | 19 | * You should have received a copy of the GNU Lesser General Public |
| | 20 | * License along with FFmpeg; if not, write to the Free Software |
| | 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| | 22 | */ |
| | 23 | |
| | 24 | #include <float.h> |
| | 25 | #include <stdlib.h> |
| | 26 | |
| | 27 | #include <xevd.h> |
| | 28 | |
| | 29 | #include "libavutil/internal.h" |
| | 30 | #include "libavutil/common.h" |
| | 31 | #include "libavutil/opt.h" |
| | 32 | #include "libavutil/pixdesc.h" |
| | 33 | #include "libavutil/pixfmt.h" |
| | 34 | #include "libavutil/imgutils.h" |
| | 35 | #include "libavutil/cpu.h" |
| | 36 | |
| | 37 | #include "avcodec.h" |
| | 38 | #include "internal.h" |
| | 39 | #include "packet_internal.h" |
| | 40 | #include "codec_internal.h" |
| | 41 | #include "profiles.h" |
| | 42 | #include "decode.h" |
| | 43 | |
| | 44 | #define XEVD_PARAM_BAD_NAME -1 |
| | 45 | #define XEVD_PARAM_BAD_VALUE -2 |
| | 46 | |
| | 47 | #define EVC_NAL_HEADER_SIZE 2 /* byte */ |
| | 48 | |
| | 49 | /** |
| | 50 | * The structure stores all the states associated with the instance of Xeve MPEG-5 EVC decoder |
| | 51 | */ |
| | 52 | typedef struct XevdContext { |
| | 53 | const AVClass *class; |
| | 54 | |
| | 55 | XEVD id; // XEVD instance identifier @see xevd.h |
| | 56 | XEVD_CDSC cdsc; // decoding parameters @see xevd.h |
| | 57 | |
| | 58 | // If end of stream occurs it is required "flushing" (aka draining) the codec, |
| | 59 | // as the codec might buffer multiple frames or packets internally. |
| | 60 | int draining_mode; // The flag is set if codec enters draining mode. |
| | 61 | |
| | 62 | AVPacket *pkt; // access unit (a set of NAL units that are consecutive in decoding order and containing exactly one encoded image) |
| | 63 | } XevdContext; |
| | 64 | |
| | 65 | /** |
| | 66 | * The function populates the XEVD_CDSC structure. |
| | 67 | * XEVD_CDSC contains all decoder parameters that should be initialized before its use. |
| | 68 | * |
| | 69 | * @param[in] avctx codec context |
| | 70 | * @param[out] cdsc contains all decoder parameters that should be initialized before its use |
| | 71 | * |
| | 72 | */ |
| | 73 | static void get_conf(AVCodecContext *avctx, XEVD_CDSC *cdsc) |
| | 74 | { |
| | 75 | int cpu_count = av_cpu_count(); |
| | 76 | |
| | 77 | /* clear XEVS_CDSC structure */ |
| | 78 | memset(cdsc, 0, sizeof(XEVD_CDSC)); |
| | 79 | |
| | 80 | /* init XEVD_CDSC */ |
| | 81 | if (avctx->thread_count <= 0) |
| | 82 | cdsc->threads = (cpu_count < XEVD_MAX_TASK_CNT) ? cpu_count : XEVD_MAX_TASK_CNT; |
| | 83 | else if (avctx->thread_count > XEVD_MAX_TASK_CNT) |
| | 84 | cdsc->threads = XEVD_MAX_TASK_CNT; |
| | 85 | else |
| | 86 | cdsc->threads = avctx->thread_count; |
| | 87 | } |
| | 88 | |
| | 89 | /** |
| | 90 | * Read NAL unit length |
| | 91 | * @param bs input data (bitstream) |
| | 92 | * @return the length of NAL unit on success, 0 value on failure |
| | 93 | */ |
| | 94 | static uint32_t read_nal_unit_length(const uint8_t *bs, int bs_size, AVCodecContext *avctx) |
| | 95 | { |
| | 96 | uint32_t len = 0; |
| | 97 | XEVD_INFO info; |
| | 98 | int ret; |
| | 99 | |
| | 100 | if (bs_size == XEVD_NAL_UNIT_LENGTH_BYTE) { |
| | 101 | ret = xevd_info((void *)bs, XEVD_NAL_UNIT_LENGTH_BYTE, 1, &info); |
| | 102 | if (XEVD_FAILED(ret)) { |
| | 103 | av_log(avctx, AV_LOG_ERROR, "Cannot get bitstream information\n"); |
| | 104 | return 0; |
| | 105 | } |
| | 106 | len = info.nalu_len; |
| | 107 | if (len == 0) { |
| | 108 | av_log(avctx, AV_LOG_ERROR, "Invalid bitstream size! [%d]\n", bs_size); |
| | 109 | return 0; |
| | 110 | } |
| | 111 | } |
| | 112 | |
| | 113 | return len; |
| | 114 | } |
| | 115 | |
| | 116 | /** |
| | 117 | * @param[in] xectx the structure that stores all the state associated with the instance of Xeve MPEG-5 EVC decoder |
| | 118 | * @param[out] avctx codec context |
| | 119 | * @return 0 on success, negative value on failure |
| | 120 | */ |
| | 121 | static int export_stream_params(const XevdContext *xectx, AVCodecContext *avctx) |
| | 122 | { |
| | 123 | int ret; |
| | 124 | int size; |
| | 125 | int color_space; |
| | 126 | |
| | 127 | avctx->pix_fmt = AV_PIX_FMT_YUV420P10; |
| | 128 | |
| | 129 | size = 4; |
| | 130 | ret = xevd_config(xectx->id, XEVD_CFG_GET_CODED_WIDTH, &avctx->coded_width, &size); |
| | 131 | if (XEVD_FAILED(ret)) { |
| | 132 | av_log(avctx, AV_LOG_ERROR, "Failed to get coded_width\n"); |
| | 133 | return AVERROR_EXTERNAL; |
| | 134 | } |
| | 135 | |
| | 136 | ret = xevd_config(xectx->id, XEVD_CFG_GET_CODED_HEIGHT, &avctx->coded_height, &size); |
| | 137 | if (XEVD_FAILED(ret)) { |
| | 138 | av_log(avctx, AV_LOG_ERROR, "Failed to get coded_height\n"); |
| | 139 | return AVERROR_EXTERNAL; |
| | 140 | } |
| | 141 | |
| | 142 | ret = xevd_config(xectx->id, XEVD_CFG_GET_WIDTH, &avctx->width, &size); |
| | 143 | if (XEVD_FAILED(ret)) { |
| | 144 | av_log(avctx, AV_LOG_ERROR, "Failed to get width\n"); |
| | 145 | return AVERROR_EXTERNAL; |
| | 146 | } |
| | 147 | |
| | 148 | ret = xevd_config(xectx->id, XEVD_CFG_GET_HEIGHT, &avctx->height, &size); |
| | 149 | if (XEVD_FAILED(ret)) { |
| | 150 | av_log(avctx, AV_LOG_ERROR, "Failed to get height\n"); |
| | 151 | return AVERROR_EXTERNAL; |
| | 152 | } |
| | 153 | |
| | 154 | ret = xevd_config(xectx->id, XEVD_CFG_GET_COLOR_SPACE, &color_space, &size); |
| | 155 | if (XEVD_FAILED(ret)) { |
| | 156 | av_log(avctx, AV_LOG_ERROR, "Failed to get color_space\n"); |
| | 157 | return AVERROR_EXTERNAL; |
| | 158 | } |
| | 159 | switch(color_space) { |
| | 160 | case XEVD_CS_YCBCR400_10LE: |
| | 161 | avctx->pix_fmt = AV_PIX_FMT_GRAY10LE; |
| | 162 | break; |
| | 163 | case XEVD_CS_YCBCR420_10LE: |
| | 164 | avctx->pix_fmt = AV_PIX_FMT_YUV420P10LE; |
| | 165 | break; |
| | 166 | case XEVD_CS_YCBCR422_10LE: |
| | 167 | avctx->pix_fmt = AV_PIX_FMT_YUV422P10LE; |
| | 168 | break; |
| | 169 | case XEVD_CS_YCBCR444_10LE: |
| | 170 | avctx->pix_fmt = AV_PIX_FMT_YUV444P10LE; |
| | 171 | break; |
| | 172 | default: |
| | 173 | av_log(avctx, AV_LOG_ERROR, "Unknown color space\n"); |
| | 174 | avctx->pix_fmt = AV_PIX_FMT_NONE; |
| | 175 | return AVERROR_INVALIDDATA; |
| | 176 | } |
| | 177 | |
| | 178 | // the function returns sps->num_reorder_pics |
| | 179 | ret = xevd_config(xectx->id, XEVD_CFG_GET_MAX_CODING_DELAY, &avctx->max_b_frames, &size); |
| | 180 | if (XEVD_FAILED(ret)) { |
| | 181 | av_log(avctx, AV_LOG_ERROR, "Failed to get max_coding_delay\n"); |
| | 182 | return AVERROR_EXTERNAL; |
| | 183 | } |
| | 184 | |
| | 185 | avctx->has_b_frames = (avctx->max_b_frames) ? 1 : 0; |
| | 186 | |
| | 187 | return 0; |
| | 188 | } |
| | 189 | |
| | 190 | /** |
| | 191 | * @brief Copy image in imgb to frame. |
| | 192 | * |
| | 193 | * @param avctx codec context |
| | 194 | * @param[in] imgb |
| | 195 | * @param[out] frame |
| | 196 | * @return 0 on success, negative value on failure |
| | 197 | */ |
| | 198 | static int libxevd_image_copy(struct AVCodecContext *avctx, XEVD_IMGB *imgb, struct AVFrame *frame) |
| | 199 | { |
| | 200 | int ret; |
| | 201 | if (imgb->cs != XEVD_CS_YCBCR420_10LE) { |
| | 202 | av_log(avctx, AV_LOG_ERROR, "Not supported pixel format: %s\n", av_get_pix_fmt_name(avctx->pix_fmt)); |
| | 203 | return AVERROR_INVALIDDATA; |
| | 204 | } |
| | 205 | |
| | 206 | if (imgb->w[0] != avctx->width || imgb->h[0] != avctx->height) { // stream resolution changed |
| | 207 | if (ff_set_dimensions(avctx, imgb->w[0], imgb->h[0]) < 0) { |
| | 208 | av_log(avctx, AV_LOG_ERROR, "Cannot set new dimension\n"); |
| | 209 | return AVERROR_INVALIDDATA; |
| | 210 | } |
| | 211 | } |
| | 212 | |
| | 213 | if (ret = ff_get_buffer(avctx, frame, 0) < 0) |
| | 214 | return ret; |
| | 215 | |
| | 216 | av_image_copy(frame->data, frame->linesize, (const uint8_t **)imgb->a, |
| | 217 | imgb->s, avctx->pix_fmt, |
| | 218 | imgb->w[0], imgb->h[0]); |
| | 219 | |
| | 220 | return 0; |
| | 221 | } |
| | 222 | |
| | 223 | /** |
| | 224 | * Initialize decoder |
| | 225 | * Create a decoder instance and allocate all the needed resources |
| | 226 | * |
| | 227 | * @param avctx codec context |
| | 228 | * @return 0 on success, negative error code on failure |
| | 229 | */ |
| | 230 | static av_cold int libxevd_init(AVCodecContext *avctx) |
| | 231 | { |
| | 232 | XevdContext *xectx = avctx->priv_data; |
| | 233 | XEVD_CDSC *cdsc = &(xectx->cdsc); |
| | 234 | |
| | 235 | /* read configurations and set values for created descriptor (XEVD_CDSC) */ |
| | 236 | get_conf(avctx, cdsc); |
| | 237 | |
| | 238 | /* create decoder */ |
| | 239 | xectx->id = xevd_create(&(xectx->cdsc), NULL); |
| | 240 | if (xectx->id == NULL) { |
| | 241 | av_log(avctx, AV_LOG_ERROR, "Cannot create XEVD encoder\n"); |
| | 242 | return AVERROR_EXTERNAL; |
| | 243 | } |
| | 244 | |
| | 245 | xectx->draining_mode = 0; |
| | 246 | xectx->pkt = av_packet_alloc(); |
| | 247 | if (!xectx->pkt) { |
| | 248 | av_log(avctx, AV_LOG_ERROR, "Cannot allocate memory for AVPacket\n"); |
| | 249 | return AVERROR(ENOMEM); |
| | 250 | } |
| | 251 | |
| | 252 | return 0; |
| | 253 | } |
| | 254 | |
| | 255 | /** |
| | 256 | * Decode frame with decoupled packet/frame dataflow |
| | 257 | * |
| | 258 | * @param avctx codec context |
| | 259 | * @param[out] frame decoded frame |
| | 260 | * |
| | 261 | * @return 0 on success, negative error code on failure |
| | 262 | */ |
| | 263 | static int libxevd_receive_frame(AVCodecContext *avctx, AVFrame *frame) |
| | 264 | { |
| | 265 | XevdContext *xectx = avctx->priv_data; |
| | 266 | AVPacket *pkt = xectx->pkt; |
| | 267 | XEVD_IMGB *imgb = NULL; |
| | 268 | |
| | 269 | int xevd_ret = 0; |
| | 270 | int ret = 0; |
| | 271 | |
| | 272 | // obtain access unit (input data) - a set of NAL units that are consecutive in decoding order and containing exactly one encoded image |
| | 273 | ret = ff_decode_get_packet(avctx, pkt); |
| | 274 | if (ret < 0 && ret != AVERROR_EOF) { |
| | 275 | av_packet_unref(pkt); |
| | 276 | |
| | 277 | return ret; |
| | 278 | } else if(ret == AVERROR_EOF && xectx->draining_mode == 0) { // End of stream situations. Enter draining mode |
| | 279 | |
| | 280 | xectx->draining_mode = 1; |
| | 281 | av_packet_unref(pkt); |
| | 282 | } |
| | 283 | |
| | 284 | if (pkt->size > 0) { |
| | 285 | int bs_read_pos = 0; |
| | 286 | XEVD_STAT stat; |
| | 287 | XEVD_BITB bitb; |
| | 288 | int nalu_size; |
| | 289 | AVPacket* pkt_au; |
| | 290 | imgb = NULL; |
| | 291 | |
| | 292 | pkt_au = av_packet_clone(pkt); |
| | 293 | if (!pkt_au) { |
| | 294 | av_log(avctx, AV_LOG_ERROR, "Cannot clone AVPacket\n"); |
| | 295 | av_packet_unref(pkt); |
| | 296 | return AVERROR(ENOMEM); |
| | 297 | } |
| | 298 | |
| | 299 | av_packet_unref(pkt); |
| | 300 | |
| | 301 | // get all nal units from AU |
| | 302 | while(pkt_au->size > (bs_read_pos + XEVD_NAL_UNIT_LENGTH_BYTE)) { |
| | 303 | memset(&stat, 0, sizeof(XEVD_STAT)); |
| | 304 | |
| | 305 | nalu_size = read_nal_unit_length(pkt_au->data + bs_read_pos, XEVD_NAL_UNIT_LENGTH_BYTE, avctx); |
| | 306 | if (nalu_size == 0) { |
| | 307 | av_log(avctx, AV_LOG_ERROR, "Invalid bitstream\n"); |
| | 308 | av_packet_free(&pkt_au); |
| | 309 | ret = AVERROR_INVALIDDATA; |
| | 310 | |
| | 311 | return ret; |
| | 312 | } |
| | 313 | bs_read_pos += XEVD_NAL_UNIT_LENGTH_BYTE; |
| | 314 | |
| | 315 | bitb.addr = pkt_au->data + bs_read_pos; |
| | 316 | bitb.ssize = nalu_size; |
| | 317 | bitb.pdata[0] = pkt_au; |
| | 318 | bitb.ts[XEVD_TS_DTS] = pkt_au->dts; |
| | 319 | |
| | 320 | /* main decoding block */ |
| | 321 | xevd_ret = xevd_decode(xectx->id, &bitb, &stat); |
| | 322 | if (XEVD_FAILED(xevd_ret)) { |
| | 323 | av_log(avctx, AV_LOG_ERROR, "Failed to decode bitstream\n"); |
| | 324 | av_packet_free(&pkt_au); |
| | 325 | |
| | 326 | return AVERROR_EXTERNAL; |
| | 327 | } |
| | 328 | |
| | 329 | bs_read_pos += nalu_size; |
| | 330 | |
| | 331 | if (stat.nalu_type == XEVD_NUT_SPS) { // EVC stream parameters changed |
| | 332 | if ((ret = export_stream_params(xectx, avctx)) != 0) { |
| | 333 | av_log(avctx, AV_LOG_ERROR, "Failed to export stream params\n"); |
| | 334 | av_packet_free(&pkt_au); |
| | 335 | |
| | 336 | return ret; |
| | 337 | } |
| | 338 | } |
| | 339 | |
| | 340 | if (stat.read != nalu_size) |
| | 341 | av_log(avctx, AV_LOG_INFO, "Different reading of bitstream (in:%d, read:%d)\n,", nalu_size, stat.read); |
| | 342 | |
| | 343 | // stat.fnum - has negative value if the decoded data is not frame |
| | 344 | if (stat.fnum >= 0) { |
| | 345 | |
| | 346 | xevd_ret = xevd_pull(xectx->id, &imgb); // The function returns a valid image only if the return code is XEVD_OK |
| | 347 | |
| | 348 | if (XEVD_FAILED(xevd_ret)) { |
| | 349 | av_log(avctx, AV_LOG_ERROR, "Failed to pull the decoded image (xevd error code: %d, frame#=%d)\n", xevd_ret, stat.fnum); |
| | 350 | |
| | 351 | av_packet_free(&pkt_au); |
| | 352 | |
| | 353 | return AVERROR_EXTERNAL; |
| | 354 | } else if (xevd_ret == XEVD_OK_FRM_DELAYED) { |
| | 355 | if(bs_read_pos == pkt_au->size) { |
| | 356 | return AVERROR(EAGAIN); |
| | 357 | } |
| | 358 | } else { // XEVD_OK |
| | 359 | if (!imgb) { |
| | 360 | if(bs_read_pos == pkt_au->size) { |
| | 361 | av_log(avctx, AV_LOG_ERROR, "Invalid decoded image data\n"); |
| | 362 | |
| | 363 | av_packet_free(&pkt_au); |
| | 364 | return AVERROR(EAGAIN); |
| | 365 | } |
| | 366 | } else { |
| | 367 | // got frame |
| | 368 | AVPacket* pkt_au_imgb = (AVPacket*)imgb->pdata[0]; |
| | 369 | if(!pkt_au_imgb) { |
| | 370 | av_log(avctx, AV_LOG_ERROR, "Invalid data needed to fill frame properties\n"); |
| | 371 | |
| | 372 | av_packet_free(&pkt_au); |
| | 373 | av_frame_unref(frame); |
| | 374 | |
| | 375 | imgb->release(imgb); |
| | 376 | imgb = NULL; |
| | 377 | |
| | 378 | return AVERROR_INVALIDDATA; |
| | 379 | } |
| | 380 | |
| | 381 | ret = libxevd_image_copy(avctx, imgb, frame); |
| | 382 | if(ret < 0) { |
| | 383 | av_log(avctx, AV_LOG_ERROR, "Image copying error\n"); |
| | 384 | |
| | 385 | av_packet_free(&pkt_au_imgb); |
| | 386 | av_frame_unref(frame); |
| | 387 | |
| | 388 | imgb->release(imgb); |
| | 389 | imgb = NULL; |
| | 390 | |
| | 391 | return ret; |
| | 392 | } |
| | 393 | |
| | 394 | // use ff_decode_frame_props_from_pkt() to fill frame properties |
| | 395 | ret = ff_decode_frame_props_from_pkt(avctx, frame, pkt_au_imgb); |
| | 396 | if (ret < 0) { |
| | 397 | av_log(avctx, AV_LOG_ERROR, "ff_decode_frame_props_from_pkt error\n"); |
| | 398 | |
| | 399 | av_packet_free(&pkt_au_imgb); |
| | 400 | av_frame_unref(frame); |
| | 401 | |
| | 402 | imgb->release(imgb); |
| | 403 | imgb = NULL; |
| | 404 | |
| | 405 | return ret; |
| | 406 | } |
| | 407 | |
| | 408 | frame->pkt_dts = imgb->ts[XEVD_TS_DTS]; |
| | 409 | frame->pts = imgb->ts[XEVD_TS_PTS]; |
| | 410 | |
| | 411 | av_packet_free(&pkt_au_imgb); |
| | 412 | |
| | 413 | // xevd_pull uses pool of objects of type XEVD_IMGB. |
| | 414 | // The pool size is equal MAX_PB_SIZE (26), so release object when it is no more needed |
| | 415 | imgb->release(imgb); |
| | 416 | imgb = NULL; |
| | 417 | } |
| | 418 | } |
| | 419 | } |
| | 420 | } |
| | 421 | } else { // decoder draining mode handling |
| | 422 | |
| | 423 | xevd_ret = xevd_pull(xectx->id, &imgb); |
| | 424 | |
| | 425 | if (xevd_ret == XEVD_ERR_UNEXPECTED) { // draining process completed |
| | 426 | av_log(avctx, AV_LOG_DEBUG, "Draining process completed\n"); |
| | 427 | |
| | 428 | return AVERROR_EOF; |
| | 429 | } else if (XEVD_FAILED(xevd_ret)) { // handle all other errors |
| | 430 | av_log(avctx, AV_LOG_ERROR, "Failed to pull the decoded image (xevd error code: %d)\n", xevd_ret); |
| | 431 | |
| | 432 | return AVERROR_EXTERNAL; |
| | 433 | } else { // XEVD_OK |
| | 434 | AVPacket* pkt_au_imgb; |
| | 435 | if (!imgb) { |
| | 436 | av_log(avctx, AV_LOG_ERROR, "Invalid decoded image data\n"); |
| | 437 | |
| | 438 | return AVERROR_EXTERNAL; |
| | 439 | } |
| | 440 | |
| | 441 | pkt_au_imgb = (AVPacket*)imgb->pdata[0]; |
| | 442 | if(!pkt_au_imgb) { |
| | 443 | av_log(avctx, AV_LOG_ERROR, "Invalid data needed to fill frame properties\n"); |
| | 444 | |
| | 445 | imgb->release(imgb); |
| | 446 | imgb = NULL; |
| | 447 | |
| | 448 | av_frame_unref(frame); |
| | 449 | |
| | 450 | return AVERROR_INVALIDDATA; |
| | 451 | } |
| | 452 | |
| | 453 | // got frame |
| | 454 | ret = libxevd_image_copy(avctx, imgb, frame); |
| | 455 | if(ret < 0) { |
| | 456 | av_packet_free(&pkt_au_imgb); |
| | 457 | av_frame_unref(frame); |
| | 458 | |
| | 459 | imgb->release(imgb); |
| | 460 | imgb = NULL; |
| | 461 | |
| | 462 | return ret; |
| | 463 | } |
| | 464 | // use ff_decode_frame_props_from_pkt() to fill frame properties |
| | 465 | ret = ff_decode_frame_props_from_pkt(avctx, frame, pkt_au_imgb); |
| | 466 | if (ret < 0) { |
| | 467 | av_log(avctx, AV_LOG_ERROR, "ff_decode_frame_props_from_pkt error\n"); |
| | 468 | |
| | 469 | av_packet_free(&pkt_au_imgb); |
| | 470 | av_frame_unref(frame); |
| | 471 | |
| | 472 | imgb->release(imgb); |
| | 473 | imgb = NULL; |
| | 474 | |
| | 475 | return ret; |
| | 476 | } |
| | 477 | |
| | 478 | frame->pkt_dts = imgb->ts[XEVD_TS_DTS]; |
| | 479 | frame->pts = imgb->ts[XEVD_TS_PTS]; |
| | 480 | |
| | 481 | av_packet_free(&pkt_au_imgb); |
| | 482 | |
| | 483 | // xevd_pull uses pool of objects of type XEVD_IMGB. |
| | 484 | // The pool size is equal MAX_PB_SIZE (26), so release object when it is no more needed |
| | 485 | imgb->release(imgb); |
| | 486 | imgb = NULL; |
| | 487 | |
| | 488 | return 0; |
| | 489 | } |
| | 490 | } |
| | 491 | |
| | 492 | return ret; |
| | 493 | } |
| | 494 | |
| | 495 | /** |
| | 496 | * Destroy decoder |
| | 497 | * |
| | 498 | * @param avctx codec context |
| | 499 | * @return 0 on success |
| | 500 | */ |
| | 501 | static av_cold int libxevd_close(AVCodecContext *avctx) |
| | 502 | { |
| | 503 | XevdContext *xectx = avctx->priv_data; |
| | 504 | if (xectx->id) { |
| | 505 | xevd_delete(xectx->id); |
| | 506 | xectx->id = NULL; |
| | 507 | } |
| | 508 | |
| | 509 | xectx->draining_mode = 0; |
| | 510 | av_packet_free(&xectx->pkt); |
| | 511 | |
| | 512 | return 0; |
| | 513 | } |
| | 514 | |
| | 515 | #define OFFSET(x) offsetof(XevdContext, x) |
| | 516 | #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM |
| | 517 | |
| | 518 | static const AVClass libxevd_class = { |
| | 519 | .class_name = "libxevd", |
| | 520 | .item_name = av_default_item_name, |
| | 521 | .version = LIBAVUTIL_VERSION_INT, |
| | 522 | }; |
| | 523 | |
| | 524 | const FFCodec ff_libxevd_decoder = { |
| | 525 | .p.name = "evc", |
| | 526 | .p.long_name = NULL_IF_CONFIG_SMALL("EVC / MPEG-5 Essential Video Coding (EVC)"), |
| | 527 | .p.type = AVMEDIA_TYPE_VIDEO, |
| | 528 | .p.id = AV_CODEC_ID_EVC, |
| | 529 | .init = libxevd_init, |
| | 530 | FF_CODEC_RECEIVE_FRAME_CB(libxevd_receive_frame), |
| | 531 | .close = libxevd_close, |
| | 532 | .priv_data_size = sizeof(XevdContext), |
| | 533 | .p.priv_class = &libxevd_class, |
| | 534 | .p.capabilities = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_OTHER_THREADS | AV_CODEC_CAP_AVOID_PROBING, |
| | 535 | .p.profiles = NULL_IF_CONFIG_SMALL(ff_evc_profiles), |
| | 536 | .p.wrapper_name = "libxevd", |
| | 537 | .caps_internal = FF_CODEC_CAP_INIT_CLEANUP | FF_CODEC_CAP_NOT_INIT_THREADSAFE | FF_CODEC_CAP_SETS_PKT_DTS | FF_CODEC_CAP_SETS_FRAME_PROPS |
| | 538 | }; |