| @@ -1,516 +0,0 @@ |
| 1 | /* | | |
| 2 | * JPEG 2000 decoding support via OpenJPEG | | |
| 3 | * Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net> | | |
| 4 | * | | |
| 5 | * This file is part of FFmpeg. | | |
| 6 | * | | |
| 7 | * FFmpeg is free software; you can redistribute it and/or | | |
| 8 | * modify it under the terms of the GNU Lesser General Public | | |
| 9 | * License as published by the Free Software Foundation; either | | |
| 10 | * version 2.1 of the License, or (at your option) any later version. | | |
| 11 | * | | |
| 12 | * FFmpeg is distributed in the hope that it will be useful, | | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | | |
| 15 | * Lesser General Public License for more details. | | |
| 16 | * | | |
| 17 | * You should have received a copy of the GNU Lesser General Public | | |
| 18 | * License along with FFmpeg; if not, write to the Free Software | | |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | | |
| 20 | */ | | |
| 21 | | | |
| 22 | /** | | |
| 23 | * @file | | |
| 24 | * JPEG 2000 decoder using libopenjpeg | | |
| 25 | */ | | |
| 26 | | | |
| 27 | #include "libavutil/common.h" | | |
| 28 | #include "libavutil/imgutils.h" | | |
| 29 | #include "libavutil/intreadwrite.h" | | |
| 30 | #include "libavutil/opt.h" | | |
| 31 | #include "libavutil/pixfmt.h" | | |
| 32 | | | |
| 33 | #include "avcodec.h" | | |
| 34 | #include "codec_internal.h" | | |
| 35 | #include "decode.h" | | |
| 36 | #include "thread.h" | | |
| 37 | | | |
| 38 | #include <openjpeg.h> | | |
| 39 | | | |
| 40 | #define JP2_SIG_TYPE 0x6A502020 | | |
| 41 | #define JP2_SIG_VALUE 0x0D0A870A | | |
| 42 | | | |
| 43 | // pix_fmts with lower bpp have to be listed before | | |
| 44 | // similar pix_fmts with higher bpp. | | |
| 45 | #define RGB_PIXEL_FORMATS AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, \ | | |
| 46 | AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64 | | |
| 47 | | | |
| 48 | #define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8, \ | | |
| 49 | AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, \ | | |
| 50 | AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16 | | |
| 51 | | | |
| 52 | #define YUV_PIXEL_FORMATS AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUVA420P, \ | | |
| 53 | AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \ | | |
| 54 | AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \ | | |
| 55 | AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \ | | |
| 56 | AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, \ | | |
| 57 | AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \ | | |
| 58 | AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, \ | | |
| 59 | AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, \ | | |
| 60 | AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \ | | |
| 61 | AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \ | | |
| 62 | AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16 | | |
| 63 | | | |
| 64 | #define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12 | | |
| 65 | | | |
| 66 | static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = { | | |
| 67 | RGB_PIXEL_FORMATS | | |
| 68 | }; | | |
| 69 | static const enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = { | | |
| 70 | GRAY_PIXEL_FORMATS | | |
| 71 | }; | | |
| 72 | static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = { | | |
| 73 | YUV_PIXEL_FORMATS | | |
| 74 | }; | | |
| 75 | static const enum AVPixelFormat libopenjpeg_all_pix_fmts[] = { | | |
| 76 | RGB_PIXEL_FORMATS, GRAY_PIXEL_FORMATS, YUV_PIXEL_FORMATS, XYZ_PIXEL_FORMATS | | |
| 77 | }; | | |
| 78 | | | |
| 79 | typedef struct LibOpenJPEGContext { | | |
| 80 | AVClass *class; | | |
| 81 | opj_dparameters_t dec_params; | | |
| 82 | int lowqual; | | |
| 83 | } LibOpenJPEGContext; | | |
| 84 | | | |
| 85 | static void error_callback(const char *msg, void *data) | | |
| 86 | { | | |
| 87 | av_log(data, AV_LOG_ERROR, "%s", msg); | | |
| 88 | } | | |
| 89 | | | |
| 90 | static void warning_callback(const char *msg, void *data) | | |
| 91 | { | | |
| 92 | av_log(data, AV_LOG_WARNING, "%s", msg); | | |
| 93 | } | | |
| 94 | | | |
| 95 | static void info_callback(const char *msg, void *data) | | |
| 96 | { | | |
| 97 | av_log(data, AV_LOG_DEBUG, "%s", msg); | | |
| 98 | } | | |
| 99 | | | |
| 100 | typedef struct BufferReader { | | |
| 101 | int pos; | | |
| 102 | int size; | | |
| 103 | const uint8_t *buffer; | | |
| 104 | } BufferReader; | | |
| 105 | | | |
| 106 | static OPJ_SIZE_T stream_read(void *out_buffer, OPJ_SIZE_T nb_bytes, void *user_data) | | |
| 107 | { | | |
| 108 | BufferReader *reader = user_data; | | |
| 109 | int remaining; | | |
| 110 | | | |
| 111 | if (reader->pos == reader->size) { | | |
| 112 | return (OPJ_SIZE_T)-1; | | |
| 113 | } | | |
| 114 | remaining = reader->size - reader->pos; | | |
| 115 | if (nb_bytes > remaining) { | | |
| 116 | nb_bytes = remaining; | | |
| 117 | } | | |
| 118 | memcpy(out_buffer, reader->buffer + reader->pos, nb_bytes); | | |
| 119 | reader->pos += (int)nb_bytes; | | |
| 120 | return nb_bytes; | | |
| 121 | } | | |
| 122 | | | |
| 123 | static OPJ_OFF_T stream_skip(OPJ_OFF_T nb_bytes, void *user_data) | | |
| 124 | { | | |
| 125 | BufferReader *reader = user_data; | | |
| 126 | if (nb_bytes < 0) { | | |
| 127 | if (reader->pos == 0) { | | |
| 128 | return (OPJ_SIZE_T)-1; | | |
| 129 | } | | |
| 130 | if (nb_bytes + reader->pos < 0) { | | |
| 131 | nb_bytes = -reader->pos; | | |
| 132 | } | | |
| 133 | } else { | | |
| 134 | int remaining; | | |
| 135 | | | |
| 136 | if (reader->pos == reader->size) { | | |
| 137 | return (OPJ_SIZE_T)-1; | | |
| 138 | } | | |
| 139 | remaining = reader->size - reader->pos; | | |
| 140 | if (nb_bytes > remaining) { | | |
| 141 | nb_bytes = remaining; | | |
| 142 | } | | |
| 143 | } | | |
| 144 | reader->pos += (int)nb_bytes; | | |
| 145 | return nb_bytes; | | |
| 146 | } | | |
| 147 | | | |
| 148 | static OPJ_BOOL stream_seek(OPJ_OFF_T nb_bytes, void *user_data) | | |
| 149 | { | | |
| 150 | BufferReader *reader = user_data; | | |
| 151 | if (nb_bytes < 0 || nb_bytes > reader->size) { | | |
| 152 | return OPJ_FALSE; | | |
| 153 | } | | |
| 154 | reader->pos = (int)nb_bytes; | | |
| 155 | return OPJ_TRUE; | | |
| 156 | } | | |
| 157 | | | |
| 158 | static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt) | | |
| 159 | { | | |
| 160 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | | |
| 161 | int match = 1; | | |
| 162 | | | |
| 163 | if (desc->nb_components != image->numcomps) { | | |
| 164 | return 0; | | |
| 165 | } | | |
| 166 | | | |
| 167 | switch (desc->nb_components) { | | |
| 168 | case 4: | | |
| 169 | match = match && | | |
| 170 | desc->comp[3].depth >= image->comps[3].prec && | | |
| 171 | 1 == image->comps[3].dx && | | |
| 172 | 1 == image->comps[3].dy; | | |
| 173 | case 3: | | |
| 174 | match = match && | | |
| 175 | desc->comp[2].depth >= image->comps[2].prec && | | |
| 176 | 1 << desc->log2_chroma_w == image->comps[2].dx && | | |
| 177 | 1 << desc->log2_chroma_h == image->comps[2].dy; | | |
| 178 | case 2: | | |
| 179 | match = match && | | |
| 180 | desc->comp[1].depth >= image->comps[1].prec && | | |
| 181 | 1 << desc->log2_chroma_w == image->comps[1].dx && | | |
| 182 | 1 << desc->log2_chroma_h == image->comps[1].dy; | | |
| 183 | case 1: | | |
| 184 | match = match && | | |
| 185 | desc->comp[0].depth >= image->comps[0].prec && | | |
| 186 | 1 == image->comps[0].dx && | | |
| 187 | 1 == image->comps[0].dy; | | |
| 188 | default: | | |
| 189 | break; | | |
| 190 | } | | |
| 191 | | | |
| 192 | return match; | | |
| 193 | } | | |
| 194 | | | |
| 195 | static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) { | | |
| 196 | int index; | | |
| 197 | const enum AVPixelFormat *possible_fmts = NULL; | | |
| 198 | int possible_fmts_nb = 0; | | |
| 199 | | | |
| 200 | switch (image->color_space) { | | |
| 201 | case OPJ_CLRSPC_SRGB: | | |
| 202 | possible_fmts = libopenjpeg_rgb_pix_fmts; | | |
| 203 | possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts); | | |
| 204 | break; | | |
| 205 | case OPJ_CLRSPC_GRAY: | | |
| 206 | possible_fmts = libopenjpeg_gray_pix_fmts; | | |
| 207 | possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts); | | |
| 208 | break; | | |
| 209 | case OPJ_CLRSPC_SYCC: | | |
| 210 | possible_fmts = libopenjpeg_yuv_pix_fmts; | | |
| 211 | possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts); | | |
| 212 | break; | | |
| 213 | default: | | |
| 214 | possible_fmts = libopenjpeg_all_pix_fmts; | | |
| 215 | possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts); | | |
| 216 | break; | | |
| 217 | } | | |
| 218 | | | |
| 219 | for (index = 0; index < possible_fmts_nb; ++index) | | |
| 220 | if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) { | | |
| 221 | return possible_fmts[index]; | | |
| 222 | } | | |
| 223 | | | |
| 224 | return AV_PIX_FMT_NONE; | | |
| 225 | } | | |
| 226 | | | |
| 227 | static inline int libopenjpeg_ispacked(enum AVPixelFormat pix_fmt) | | |
| 228 | { | | |
| 229 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt); | | |
| 230 | int i, component_plane; | | |
| 231 | | | |
| 232 | if (pix_fmt == AV_PIX_FMT_GRAY16) | | |
| 233 | return 0; | | |
| 234 | | | |
| 235 | component_plane = desc->comp[0].plane; | | |
| 236 | for (i = 1; i < desc->nb_components; i++) | | |
| 237 | if (component_plane != desc->comp[i].plane) | | |
| 238 | return 0; | | |
| 239 | return 1; | | |
| 240 | } | | |
| 241 | | | |
| 242 | static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) { | | |
| 243 | uint8_t *img_ptr; | | |
| 244 | int index, x, y, c; | | |
| 245 | for (y = 0; y < picture->height; y++) { | | |
| 246 | index = y * picture->width; | | |
| 247 | img_ptr = picture->data[0] + y * picture->linesize[0]; | | |
| 248 | for (x = 0; x < picture->width; x++, index++) | | |
| 249 | for (c = 0; c < image->numcomps; c++) | | |
| 250 | *img_ptr++ = 0x80 * image->comps[c].sgnd + image->comps[c].data[index]; | | |
| 251 | } | | |
| 252 | } | | |
| 253 | | | |
| 254 | static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) { | | |
| 255 | uint16_t *img_ptr; | | |
| 256 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(picture->format); | | |
| 257 | int index, x, y, c; | | |
| 258 | int adjust[4]; | | |
| 259 | for (x = 0; x < image->numcomps; x++) | | |
| 260 | adjust[x] = FFMAX(FFMIN(desc->comp[x].depth - image->comps[x].prec, 8), 0) + desc->comp[x].shift; | | |
| 261 | | | |
| 262 | for (y = 0; y < picture->height; y++) { | | |
| 263 | index = y * picture->width; | | |
| 264 | img_ptr = (uint16_t *) (picture->data[0] + y * picture->linesize[0]); | | |
| 265 | for (x = 0; x < picture->width; x++, index++) | | |
| 266 | for (c = 0; c < image->numcomps; c++) | | |
| 267 | *img_ptr++ = (1 << image->comps[c].prec - 1) * image->comps[c].sgnd + | | |
| 268 | (unsigned)image->comps[c].data[index] << adjust[c]; | | |
| 269 | } | | |
| 270 | } | | |
| 271 | | | |
| 272 | static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) { | | |
| 273 | int *comp_data; | | |
| 274 | uint8_t *img_ptr; | | |
| 275 | int index, x, y; | | |
| 276 | | | |
| 277 | for (index = 0; index < image->numcomps; index++) { | | |
| 278 | comp_data = image->comps[index].data; | | |
| 279 | for (y = 0; y < image->comps[index].h; y++) { | | |
| 280 | img_ptr = picture->data[index] + y * picture->linesize[index]; | | |
| 281 | for (x = 0; x < image->comps[index].w; x++) { | | |
| 282 | *img_ptr = 0x80 * image->comps[index].sgnd + *comp_data; | | |
| 283 | img_ptr++; | | |
| 284 | comp_data++; | | |
| 285 | } | | |
| 286 | } | | |
| 287 | } | | |
| 288 | } | | |
| 289 | | | |
| 290 | static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) { | | |
| 291 | int *comp_data; | | |
| 292 | uint16_t *img_ptr; | | |
| 293 | const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(picture->format); | | |
| 294 | int index, x, y; | | |
| 295 | int adjust[4]; | | |
| 296 | for (x = 0; x < image->numcomps; x++) | | |
| 297 | adjust[x] = FFMAX(FFMIN(desc->comp[x].depth - image->comps[x].prec, 8), 0) + desc->comp[x].shift; | | |
| 298 | | | |
| 299 | for (index = 0; index < image->numcomps; index++) { | | |
| 300 | comp_data = image->comps[index].data; | | |
| 301 | for (y = 0; y < image->comps[index].h; y++) { | | |
| 302 | img_ptr = (uint16_t *)(picture->data[index] + y * picture->linesize[index]); | | |
| 303 | for (x = 0; x < image->comps[index].w; x++) { | | |
| 304 | *img_ptr = (1 << image->comps[index].prec - 1) * image->comps[index].sgnd + | | |
| 305 | (unsigned)*comp_data << adjust[index]; | | |
| 306 | img_ptr++; | | |
| 307 | comp_data++; | | |
| 308 | } | | |
| 309 | } | | |
| 310 | } | | |
| 311 | } | | |
| 312 | | | |
| 313 | static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx) | | |
| 314 | { | | |
| 315 | LibOpenJPEGContext *ctx = avctx->priv_data; | | |
| 316 | | | |
| 317 | opj_set_default_decoder_parameters(&ctx->dec_params); | | |
| 318 | return 0; | | |
| 319 | } | | |
| 320 | | | |
| 321 | static int libopenjpeg_decode_frame(AVCodecContext *avctx, AVFrame *picture, | | |
| 322 | int *got_frame, AVPacket *avpkt) | | |
| 323 | { | | |
| 324 | const uint8_t *buf = avpkt->data; | | |
| 325 | int buf_size = avpkt->size; | | |
| 326 | LibOpenJPEGContext *ctx = avctx->priv_data; | | |
| 327 | const AVPixFmtDescriptor *desc; | | |
| 328 | int width, height, ret; | | |
| 329 | int pixel_size = 0; | | |
| 330 | int ispacked = 0; | | |
| 331 | int i; | | |
| 332 | opj_image_t *image = NULL; | | |
| 333 | BufferReader reader = {0, avpkt->size, avpkt->data}; | | |
| 334 | opj_codec_t *dec = NULL; | | |
| 335 | opj_stream_t *stream = NULL; | | |
| 336 | | | |
| 337 | *got_frame = 0; | | |
| 338 | | | |
| 339 | // Check if input is a raw jpeg2k codestream or in jp2 wrapping | | |
| 340 | if ((AV_RB32(buf) == 12) && | | |
| 341 | (AV_RB32(buf + 4) == JP2_SIG_TYPE) && | | |
| 342 | (AV_RB32(buf + 8) == JP2_SIG_VALUE)) { | | |
| 343 | dec = opj_create_decompress(OPJ_CODEC_JP2); | | |
| 344 | } else { | | |
| 345 | /* If the AVPacket contains a jp2c box, then skip to | | |
| 346 | * the starting byte of the codestream. */ | | |
| 347 | if (AV_RB32(buf + 4) == AV_RB32("jp2c")) | | |
| 348 | buf += 8; | | |
| 349 | dec = opj_create_decompress(OPJ_CODEC_J2K); | | |
| 350 | } | | |
| 351 | | | |
| 352 | if (!dec) { | | |
| 353 | av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n"); | | |
| 354 | ret = AVERROR_EXTERNAL; | | |
| 355 | goto done; | | |
| 356 | } | | |
| 357 | | | |
| 358 | if (!opj_set_error_handler(dec, error_callback, avctx) || | | |
| 359 | !opj_set_warning_handler(dec, warning_callback, avctx) || | | |
| 360 | !opj_set_info_handler(dec, info_callback, avctx)) { | | |
| 361 | av_log(avctx, AV_LOG_ERROR, "Error setting decoder handlers.\n"); | | |
| 362 | ret = AVERROR_EXTERNAL; | | |
| 363 | goto done; | | |
| 364 | } | | |
| 365 | | | |
| 366 | ctx->dec_params.cp_layer = ctx->lowqual; | | |
| 367 | ctx->dec_params.cp_reduce = avctx->lowres; | | |
| 368 | | | |
| 369 | // Tie decoder with decoding parameters | | |
| 370 | opj_setup_decoder(dec, &ctx->dec_params); | | |
| 371 | | | |
| 372 | stream = opj_stream_default_create(OPJ_STREAM_READ); | | |
| 373 | | | |
| 374 | if (!stream) { | | |
| 375 | av_log(avctx, AV_LOG_ERROR, | | |
| 376 | "Codestream could not be opened for reading.\n"); | | |
| 377 | ret = AVERROR_EXTERNAL; | | |
| 378 | goto done; | | |
| 379 | } | | |
| 380 | | | |
| 381 | opj_stream_set_read_function(stream, stream_read); | | |
| 382 | opj_stream_set_skip_function(stream, stream_skip); | | |
| 383 | opj_stream_set_seek_function(stream, stream_seek); | | |
| 384 | opj_stream_set_user_data(stream, &reader, NULL); | | |
| 385 | opj_stream_set_user_data_length(stream, avpkt->size); | | |
| 386 | // Decode the header only. | | |
| 387 | ret = !opj_read_header(stream, dec, &image); | | |
| 388 | | | |
| 389 | if (ret) { | | |
| 390 | av_log(avctx, AV_LOG_ERROR, "Error decoding codestream header.\n"); | | |
| 391 | ret = AVERROR_EXTERNAL; | | |
| 392 | goto done; | | |
| 393 | } | | |
| 394 | | | |
| 395 | width = image->x1 - image->x0; | | |
| 396 | height = image->y1 - image->y0; | | |
| 397 | | | |
| 398 | ret = ff_set_dimensions(avctx, width, height); | | |
| 399 | if (ret < 0) | | |
| 400 | goto done; | | |
| 401 | | | |
| 402 | if (avctx->pix_fmt != AV_PIX_FMT_NONE) | | |
| 403 | if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt)) | | |
| 404 | avctx->pix_fmt = AV_PIX_FMT_NONE; | | |
| 405 | | | |
| 406 | if (avctx->pix_fmt == AV_PIX_FMT_NONE) | | |
| 407 | avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image); | | |
| 408 | | | |
| 409 | if (avctx->pix_fmt == AV_PIX_FMT_NONE) { | | |
| 410 | av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format.\n"); | | |
| 411 | ret = AVERROR_UNKNOWN; | | |
| 412 | goto done; | | |
| 413 | } | | |
| 414 | for (i = 0; i < image->numcomps; i++) | | |
| 415 | if (image->comps[i].prec > avctx->bits_per_raw_sample) | | |
| 416 | avctx->bits_per_raw_sample = image->comps[i].prec; | | |
| 417 | | | |
| 418 | if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0) | | |
| 419 | goto done; | | |
| 420 | | | |
| 421 | ret = !opj_decode(dec, stream, image); | | |
| 422 | | | |
| 423 | if (ret) { | | |
| 424 | av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n"); | | |
| 425 | ret = AVERROR_EXTERNAL; | | |
| 426 | goto done; | | |
| 427 | } | | |
| 428 | | | |
| 429 | for (i = 0; i < image->numcomps; i++) { | | |
| 430 | if (!image->comps[i].data) { | | |
| 431 | av_log(avctx, AV_LOG_ERROR, | | |
| 432 | "Image component %d contains no data.\n", i); | | |
| 433 | ret = AVERROR_INVALIDDATA; | | |
| 434 | goto done; | | |
| 435 | } | | |
| 436 | } | | |
| 437 | | | |
| 438 | desc = av_pix_fmt_desc_get(avctx->pix_fmt); | | |
| 439 | pixel_size = desc->comp[0].step; | | |
| 440 | ispacked = libopenjpeg_ispacked(avctx->pix_fmt); | | |
| 441 | | | |
| 442 | switch (pixel_size) { | | |
| 443 | case 1: | | |
| 444 | if (ispacked) { | | |
| 445 | libopenjpeg_copy_to_packed8(picture, image); | | |
| 446 | } else { | | |
| 447 | libopenjpeg_copyto8(picture, image); | | |
| 448 | } | | |
| 449 | break; | | |
| 450 | case 2: | | |
| 451 | if (ispacked) { | | |
| 452 | libopenjpeg_copy_to_packed8(picture, image); | | |
| 453 | } else { | | |
| 454 | libopenjpeg_copyto16(picture, image); | | |
| 455 | } | | |
| 456 | break; | | |
| 457 | case 3: | | |
| 458 | case 4: | | |
| 459 | if (ispacked) { | | |
| 460 | libopenjpeg_copy_to_packed8(picture, image); | | |
| 461 | } | | |
| 462 | break; | | |
| 463 | case 6: | | |
| 464 | case 8: | | |
| 465 | if (ispacked) { | | |
| 466 | libopenjpeg_copy_to_packed16(picture, image); | | |
| 467 | } | | |
| 468 | break; | | |
| 469 | default: | | |
| 470 | avpriv_report_missing_feature(avctx, "Pixel size %d", pixel_size); | | |
| 471 | ret = AVERROR_PATCHWELCOME; | | |
| 472 | goto done; | | |
| 473 | } | | |
| 474 | | | |
| 475 | *got_frame = 1; | | |
| 476 | picture->pict_type = AV_PICTURE_TYPE_I; | | |
| 477 | picture->key_frame = 1; | | |
| 478 | ret = buf_size; | | |
| 479 | | | |
| 480 | done: | | |
| 481 | opj_image_destroy(image); | | |
| 482 | opj_stream_destroy(stream); | | |
| 483 | opj_destroy_codec(dec); | | |
| 484 | return ret; | | |
| 485 | } | | |
| 486 | | | |
| 487 | #define OFFSET(x) offsetof(LibOpenJPEGContext, x) | | |
| 488 | #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM | | |
| 489 | | | |
| 490 | static const AVOption options[] = { | | |
| 491 | { "lowqual", "Limit the number of layers used for decoding", | | |
| 492 | OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD }, | | |
| 493 | { NULL }, | | |
| 494 | }; | | |
| 495 | | | |
| 496 | static const AVClass openjpeg_class = { | | |
| 497 | .class_name = "libopenjpeg", | | |
| 498 | .item_name = av_default_item_name, | | |
| 499 | .option = options, | | |
| 500 | .version = LIBAVUTIL_VERSION_INT, | | |
| 501 | }; | | |
| 502 | | | |
| 503 | const FFCodec ff_libopenjpeg_decoder = { | | |
| 504 | .p.name = "libopenjpeg", | | |
| 505 | CODEC_LONG_NAME("OpenJPEG JPEG 2000"), | | |
| 506 | .p.type = AVMEDIA_TYPE_VIDEO, | | |
| 507 | .p.id = AV_CODEC_ID_JPEG2000, | | |
| 508 | .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS, | | |
| 509 | .p.max_lowres = 31, | | |
| 510 | .p.priv_class = &openjpeg_class, | | |
| 511 | .p.wrapper_name = "libopenjpeg", | | |
| 512 | .caps_internal = FF_CODEC_CAP_NOT_INIT_THREADSAFE, | | |
| 513 | .priv_data_size = sizeof(LibOpenJPEGContext), | | |
| 514 | .init = libopenjpeg_decode_init, | | |
| 515 | FF_CODEC_DECODE_CB(libopenjpeg_decode_frame), | | |
| 516 | }; | | |