2 * JPEG 2000 decoding support via OpenJPEG
3 * Copyright (c) 2009 Jaikrishnan Menon <realityman@gmx.net>
5 * This file is part of FFmpeg.
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.
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.
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
24 * JPEG 2000 decoder using libopenjpeg
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"
37 #if HAVE_OPENJPEG_2_1_OPENJPEG_H
38 # include <openjpeg-2.1/openjpeg.h>
39 #elif HAVE_OPENJPEG_2_0_OPENJPEG_H
40 # include <openjpeg-2.0/openjpeg.h>
41 #elif HAVE_OPENJPEG_1_5_OPENJPEG_H
42 # include <openjpeg-1.5/openjpeg.h>
44 # include <openjpeg.h>
47 #if HAVE_OPENJPEG_2_1_OPENJPEG_H || HAVE_OPENJPEG_2_0_OPENJPEG_H
48 # define OPENJPEG_MAJOR_VERSION 2
49 # define OPJ(x) OPJ_##x
51 # define OPENJPEG_MAJOR_VERSION 1
55 #define JP2_SIG_TYPE 0x6A502020
56 #define JP2_SIG_VALUE 0x0D0A870A
58 // pix_fmts with lower bpp have to be listed before
59 // similar pix_fmts with higher bpp.
60 #define RGB_PIXEL_FORMATS AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, \
61 AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64
63 #define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8, \
64 AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16
66 #define YUV_PIXEL_FORMATS AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUVA420P, \
67 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \
68 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \
69 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \
70 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, \
71 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \
72 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, \
73 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, \
74 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \
75 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \
76 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16
78 #define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12
80 static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {
83 static const enum AVPixelFormat libopenjpeg_gray_pix_fmts[] = {
86 static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {
89 static const enum AVPixelFormat libopenjpeg_all_pix_fmts[] = {
90 RGB_PIXEL_FORMATS, GRAY_PIXEL_FORMATS, YUV_PIXEL_FORMATS, XYZ_PIXEL_FORMATS
93 typedef struct LibOpenJPEGContext {
95 opj_dparameters_t dec_params;
96 #if OPENJPEG_MAJOR_VERSION == 1
97 opj_event_mgr_t event_mgr;
98 #endif // OPENJPEG_MAJOR_VERSION == 1
100 } LibOpenJPEGContext;
102 static void error_callback(const char *msg, void *data)
104 av_log(data, AV_LOG_ERROR, "%s", msg);
107 static void warning_callback(const char *msg, void *data)
109 av_log(data, AV_LOG_WARNING, "%s", msg);
112 static void info_callback(const char *msg, void *data)
114 av_log(data, AV_LOG_DEBUG, "%s", msg);
117 #if OPENJPEG_MAJOR_VERSION == 2
118 typedef struct BufferReader {
121 const uint8_t *buffer;
124 static OPJ_SIZE_T stream_read(void *out_buffer, OPJ_SIZE_T nb_bytes, void *user_data)
126 BufferReader *reader = user_data;
129 if (reader->pos == reader->size) {
130 return (OPJ_SIZE_T)-1;
132 remaining = reader->size - reader->pos;
133 if (nb_bytes > remaining) {
134 nb_bytes = remaining;
136 memcpy(out_buffer, reader->buffer + reader->pos, nb_bytes);
137 reader->pos += (int)nb_bytes;
141 static OPJ_OFF_T stream_skip(OPJ_OFF_T nb_bytes, void *user_data)
143 BufferReader *reader = user_data;
145 if (reader->pos == 0) {
146 return (OPJ_SIZE_T)-1;
148 if (nb_bytes + reader->pos < 0) {
149 nb_bytes = -reader->pos;
154 if (reader->pos == reader->size) {
155 return (OPJ_SIZE_T)-1;
157 remaining = reader->size - reader->pos;
158 if (nb_bytes > remaining) {
159 nb_bytes = remaining;
162 reader->pos += (int)nb_bytes;
166 static OPJ_BOOL stream_seek(OPJ_OFF_T nb_bytes, void *user_data)
168 BufferReader *reader = user_data;
169 if (nb_bytes < 0 || nb_bytes > reader->size) {
172 reader->pos = (int)nb_bytes;
175 #endif // OPENJPEG_MAJOR_VERSION == 2
177 static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
179 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
182 if (desc->nb_components != image->numcomps) {
186 switch (desc->nb_components) {
189 desc->comp[3].depth >= image->comps[3].prec &&
190 1 == image->comps[3].dx &&
191 1 == image->comps[3].dy;
194 desc->comp[2].depth >= image->comps[2].prec &&
195 1 << desc->log2_chroma_w == image->comps[2].dx &&
196 1 << desc->log2_chroma_h == image->comps[2].dy;
199 desc->comp[1].depth >= image->comps[1].prec &&
200 1 << desc->log2_chroma_w == image->comps[1].dx &&
201 1 << desc->log2_chroma_h == image->comps[1].dy;
204 desc->comp[0].depth >= image->comps[0].prec &&
205 1 == image->comps[0].dx &&
206 1 == image->comps[0].dy;
214 static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
216 const enum AVPixelFormat *possible_fmts = NULL;
217 int possible_fmts_nb = 0;
219 switch (image->color_space) {
220 case OPJ(CLRSPC_SRGB):
221 possible_fmts = libopenjpeg_rgb_pix_fmts;
222 possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts);
224 case OPJ(CLRSPC_GRAY):
225 possible_fmts = libopenjpeg_gray_pix_fmts;
226 possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
228 case OPJ(CLRSPC_SYCC):
229 possible_fmts = libopenjpeg_yuv_pix_fmts;
230 possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
233 possible_fmts = libopenjpeg_all_pix_fmts;
234 possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
238 for (index = 0; index < possible_fmts_nb; ++index)
239 if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) {
240 return possible_fmts[index];
243 return AV_PIX_FMT_NONE;
246 static inline int libopenjpeg_ispacked(enum AVPixelFormat pix_fmt)
248 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
249 int i, component_plane;
251 if (pix_fmt == AV_PIX_FMT_GRAY16)
254 component_plane = desc->comp[0].plane;
255 for (i = 1; i < desc->nb_components; i++)
256 if (component_plane != desc->comp[i].plane)
261 static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) {
264 for (y = 0; y < picture->height; y++) {
265 index = y * picture->width;
266 img_ptr = picture->data[0] + y * picture->linesize[0];
267 for (x = 0; x < picture->width; x++, index++)
268 for (c = 0; c < image->numcomps; c++)
269 *img_ptr++ = 0x80 * image->comps[c].sgnd + image->comps[c].data[index];
273 static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) {
275 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(picture->format);
278 for (x = 0; x < image->numcomps; x++)
279 adjust[x] = FFMAX(FFMIN(desc->comp[x].depth - image->comps[x].prec, 8), 0) + desc->comp[x].shift;
281 for (y = 0; y < picture->height; y++) {
282 index = y * picture->width;
283 img_ptr = (uint16_t *) (picture->data[0] + y * picture->linesize[0]);
284 for (x = 0; x < picture->width; x++, index++)
285 for (c = 0; c < image->numcomps; c++)
286 *img_ptr++ = (1 << image->comps[c].prec - 1) * image->comps[c].sgnd +
287 (unsigned)image->comps[c].data[index] << adjust[c];
291 static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
296 for (index = 0; index < image->numcomps; index++) {
297 comp_data = image->comps[index].data;
298 for (y = 0; y < image->comps[index].h; y++) {
299 img_ptr = picture->data[index] + y * picture->linesize[index];
300 for (x = 0; x < image->comps[index].w; x++) {
301 *img_ptr = 0x80 * image->comps[index].sgnd + *comp_data;
309 static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) {
312 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(picture->format);
315 for (x = 0; x < image->numcomps; x++)
316 adjust[x] = FFMAX(FFMIN(desc->comp[x].depth - image->comps[x].prec, 8), 0) + desc->comp[x].shift;
318 for (index = 0; index < image->numcomps; index++) {
319 comp_data = image->comps[index].data;
320 for (y = 0; y < image->comps[index].h; y++) {
321 img_ptr = (uint16_t *)(picture->data[index] + y * picture->linesize[index]);
322 for (x = 0; x < image->comps[index].w; x++) {
323 *img_ptr = (1 << image->comps[index].prec - 1) * image->comps[index].sgnd +
324 (unsigned)*comp_data << adjust[index];
332 static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
334 LibOpenJPEGContext *ctx = avctx->priv_data;
336 opj_set_default_decoder_parameters(&ctx->dec_params);
340 static int libopenjpeg_decode_frame(AVCodecContext *avctx,
341 void *data, int *got_frame,
344 uint8_t *buf = avpkt->data;
345 int buf_size = avpkt->size;
346 LibOpenJPEGContext *ctx = avctx->priv_data;
347 ThreadFrame frame = { .f = data };
348 AVFrame *picture = data;
349 const AVPixFmtDescriptor *desc;
350 int width, height, ret;
354 opj_image_t *image = NULL;
355 #if OPENJPEG_MAJOR_VERSION == 1
356 opj_dinfo_t *dec = NULL;
357 opj_cio_t *stream = NULL;
358 #else // OPENJPEG_MAJOR_VERSION == 2
359 BufferReader reader = {0, avpkt->size, avpkt->data};
360 opj_codec_t *dec = NULL;
361 opj_stream_t *stream = NULL;
362 #endif // OPENJPEG_MAJOR_VERSION == 1
366 // Check if input is a raw jpeg2k codestream or in jp2 wrapping
367 if ((AV_RB32(buf) == 12) &&
368 (AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
369 (AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
370 dec = opj_create_decompress(OPJ(CODEC_JP2));
372 /* If the AVPacket contains a jp2c box, then skip to
373 * the starting byte of the codestream. */
374 if (AV_RB32(buf + 4) == AV_RB32("jp2c"))
376 dec = opj_create_decompress(OPJ(CODEC_J2K));
380 av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
381 ret = AVERROR_EXTERNAL;
385 #if OPENJPEG_MAJOR_VERSION == 1
386 memset(&ctx->event_mgr, 0, sizeof(ctx->event_mgr));
387 ctx->event_mgr.info_handler = info_callback;
388 ctx->event_mgr.error_handler = error_callback;
389 ctx->event_mgr.warning_handler = warning_callback;
390 opj_set_event_mgr((opj_common_ptr) dec, &ctx->event_mgr, avctx);
391 ctx->dec_params.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
392 ctx->dec_params.cp_layer = ctx->lowqual;
393 #else // OPENJPEG_MAJOR_VERSION == 2
394 if (!opj_set_error_handler(dec, error_callback, avctx) ||
395 !opj_set_warning_handler(dec, warning_callback, avctx) ||
396 !opj_set_info_handler(dec, info_callback, avctx)) {
397 av_log(avctx, AV_LOG_ERROR, "Error setting decoder handlers.\n");
398 ret = AVERROR_EXTERNAL;
402 ctx->dec_params.cp_layer = ctx->lowqual;
403 ctx->dec_params.cp_reduce = avctx->lowres;
404 #endif // OPENJPEG_MAJOR_VERSION == 1
406 // Tie decoder with decoding parameters
407 opj_setup_decoder(dec, &ctx->dec_params);
409 #if OPENJPEG_MAJOR_VERSION == 1
410 stream = opj_cio_open((opj_common_ptr) dec, buf, buf_size);
411 #else // OPENJPEG_MAJOR_VERSION == 2
412 stream = opj_stream_default_create(OPJ_STREAM_READ);
413 #endif // OPENJPEG_MAJOR_VERSION == 1
416 av_log(avctx, AV_LOG_ERROR,
417 "Codestream could not be opened for reading.\n");
418 ret = AVERROR_EXTERNAL;
422 #if OPENJPEG_MAJOR_VERSION == 1
423 // Decode the header only.
424 image = opj_decode_with_info(dec, stream, NULL);
425 opj_cio_close(stream);
428 #else // OPENJPEG_MAJOR_VERSION == 2
429 opj_stream_set_read_function(stream, stream_read);
430 opj_stream_set_skip_function(stream, stream_skip);
431 opj_stream_set_seek_function(stream, stream_seek);
432 #if HAVE_OPENJPEG_2_1_OPENJPEG_H
433 opj_stream_set_user_data(stream, &reader, NULL);
434 #elif HAVE_OPENJPEG_2_0_OPENJPEG_H
435 opj_stream_set_user_data(stream, &reader);
437 #error Missing call to opj_stream_set_user_data
439 opj_stream_set_user_data_length(stream, avpkt->size);
440 // Decode the header only.
441 ret = !opj_read_header(stream, dec, &image);
442 #endif // OPENJPEG_MAJOR_VERSION == 1
445 av_log(avctx, AV_LOG_ERROR, "Error decoding codestream header.\n");
446 ret = AVERROR_EXTERNAL;
450 width = image->x1 - image->x0;
451 height = image->y1 - image->y0;
453 ret = ff_set_dimensions(avctx, width, height);
457 if (avctx->pix_fmt != AV_PIX_FMT_NONE)
458 if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
459 avctx->pix_fmt = AV_PIX_FMT_NONE;
461 if (avctx->pix_fmt == AV_PIX_FMT_NONE)
462 avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
464 if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
465 av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format.\n");
466 ret = AVERROR_UNKNOWN;
469 for (i = 0; i < image->numcomps; i++)
470 if (image->comps[i].prec > avctx->bits_per_raw_sample)
471 avctx->bits_per_raw_sample = image->comps[i].prec;
473 if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
476 #if OPENJPEG_MAJOR_VERSION == 1
477 ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
478 ctx->dec_params.cp_reduce = avctx->lowres;
479 // Tie decoder with decoding parameters.
480 opj_setup_decoder(dec, &ctx->dec_params);
481 stream = opj_cio_open((opj_common_ptr) dec, buf, buf_size);
483 av_log(avctx, AV_LOG_ERROR,
484 "Codestream could not be opened for reading.\n");
485 ret = AVERROR_EXTERNAL;
488 opj_image_destroy(image);
489 // Decode the codestream
490 image = opj_decode_with_info(dec, stream, NULL);
492 #else // OPENJPEG_MAJOR_VERSION == 2
493 ret = !opj_decode(dec, stream, image);
494 #endif // OPENJPEG_MAJOR_VERSION == 1
497 av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
498 ret = AVERROR_EXTERNAL;
502 for (i = 0; i < image->numcomps; i++) {
503 if (!image->comps[i].data) {
504 av_log(avctx, AV_LOG_ERROR,
505 "Image component %d contains no data.\n", i);
506 ret = AVERROR_INVALIDDATA;
511 desc = av_pix_fmt_desc_get(avctx->pix_fmt);
512 pixel_size = desc->comp[0].step;
513 ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
515 switch (pixel_size) {
518 libopenjpeg_copy_to_packed8(picture, image);
520 libopenjpeg_copyto8(picture, image);
525 libopenjpeg_copy_to_packed8(picture, image);
527 libopenjpeg_copyto16(picture, image);
533 libopenjpeg_copy_to_packed8(picture, image);
539 libopenjpeg_copy_to_packed16(picture, image);
543 avpriv_report_missing_feature(avctx, "Pixel size %d", pixel_size);
544 ret = AVERROR_PATCHWELCOME;
549 picture->pict_type = AV_PICTURE_TYPE_I;
550 picture->key_frame = 1;
554 opj_image_destroy(image);
555 #if OPENJPEG_MAJOR_VERSION == 2
556 opj_stream_destroy(stream);
557 opj_destroy_codec(dec);
559 opj_cio_close(stream);
560 opj_destroy_decompress(dec);
565 static av_cold void libopenjpeg_static_init(AVCodec *codec)
567 const char *version = opj_version();
570 if (sscanf(version, "%d.%d", &major, &minor) == 2 && 1000*major + minor <= 1003)
571 codec->capabilities |= AV_CODEC_CAP_EXPERIMENTAL;
574 #define OFFSET(x) offsetof(LibOpenJPEGContext, x)
575 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
577 static const AVOption options[] = {
578 { "lowqual", "Limit the number of layers used for decoding",
579 OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
583 static const AVClass openjpeg_class = {
584 .class_name = "libopenjpeg",
585 .item_name = av_default_item_name,
587 .version = LIBAVUTIL_VERSION_INT,
590 AVCodec ff_libopenjpeg_decoder = {
591 .name = "libopenjpeg",
592 .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
593 .type = AVMEDIA_TYPE_VIDEO,
594 .id = AV_CODEC_ID_JPEG2000,
595 .priv_data_size = sizeof(LibOpenJPEGContext),
596 .init = libopenjpeg_decode_init,
597 .decode = libopenjpeg_decode_frame,
598 .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_FRAME_THREADS,
600 .priv_class = &openjpeg_class,
601 .init_static_data = libopenjpeg_static_init,