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libopenjpegdec.c
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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 "internal.h"
35 #include "thread.h"
36 
37 #if HAVE_OPENJPEG_2_3_OPENJPEG_H
38 # include <openjpeg-2.3/openjpeg.h>
39 #elif HAVE_OPENJPEG_2_2_OPENJPEG_H
40 # include <openjpeg-2.2/openjpeg.h>
41 #elif HAVE_OPENJPEG_2_1_OPENJPEG_H
42 # include <openjpeg-2.1/openjpeg.h>
43 #elif HAVE_OPENJPEG_2_0_OPENJPEG_H
44 # include <openjpeg-2.0/openjpeg.h>
45 #elif HAVE_OPENJPEG_1_5_OPENJPEG_H
46 # include <openjpeg-1.5/openjpeg.h>
47 #else
48 # include <openjpeg.h>
49 #endif
50 
51 #if HAVE_OPENJPEG_2_3_OPENJPEG_H || HAVE_OPENJPEG_2_2_OPENJPEG_H || HAVE_OPENJPEG_2_1_OPENJPEG_H || HAVE_OPENJPEG_2_0_OPENJPEG_H
52 # define OPENJPEG_MAJOR_VERSION 2
53 # define OPJ(x) OPJ_##x
54 #else
55 # define OPENJPEG_MAJOR_VERSION 1
56 # define OPJ(x) x
57 #endif
58 
59 #define JP2_SIG_TYPE 0x6A502020
60 #define JP2_SIG_VALUE 0x0D0A870A
61 
62 // pix_fmts with lower bpp have to be listed before
63 // similar pix_fmts with higher bpp.
64 #define RGB_PIXEL_FORMATS AV_PIX_FMT_RGB24, AV_PIX_FMT_RGBA, \
65  AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64
66 
67 #define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8, \
68  AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16
69 
70 #define YUV_PIXEL_FORMATS AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUVA420P, \
71  AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P, \
72  AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, \
73  AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, \
74  AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, \
75  AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10, \
76  AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, \
77  AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, \
78  AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, \
79  AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, \
80  AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16
81 
82 #define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12
83 
84 static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {
86 };
89 };
90 static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {
92 };
93 static const enum AVPixelFormat libopenjpeg_all_pix_fmts[] = {
95 };
96 
97 typedef struct LibOpenJPEGContext {
98  AVClass *class;
99  opj_dparameters_t dec_params;
100 #if OPENJPEG_MAJOR_VERSION == 1
101  opj_event_mgr_t event_mgr;
102 #endif // OPENJPEG_MAJOR_VERSION == 1
103  int lowqual;
105 
106 static void error_callback(const char *msg, void *data)
107 {
108  av_log(data, AV_LOG_ERROR, "%s", msg);
109 }
110 
111 static void warning_callback(const char *msg, void *data)
112 {
113  av_log(data, AV_LOG_WARNING, "%s", msg);
114 }
115 
116 static void info_callback(const char *msg, void *data)
117 {
118  av_log(data, AV_LOG_DEBUG, "%s", msg);
119 }
120 
121 #if OPENJPEG_MAJOR_VERSION == 2
122 typedef struct BufferReader {
123  int pos;
124  int size;
125  const uint8_t *buffer;
126 } BufferReader;
127 
128 static OPJ_SIZE_T stream_read(void *out_buffer, OPJ_SIZE_T nb_bytes, void *user_data)
129 {
130  BufferReader *reader = user_data;
131  int remaining;
132 
133  if (reader->pos == reader->size) {
134  return (OPJ_SIZE_T)-1;
135  }
136  remaining = reader->size - reader->pos;
137  if (nb_bytes > remaining) {
138  nb_bytes = remaining;
139  }
140  memcpy(out_buffer, reader->buffer + reader->pos, nb_bytes);
141  reader->pos += (int)nb_bytes;
142  return nb_bytes;
143 }
144 
145 static OPJ_OFF_T stream_skip(OPJ_OFF_T nb_bytes, void *user_data)
146 {
147  BufferReader *reader = user_data;
148  if (nb_bytes < 0) {
149  if (reader->pos == 0) {
150  return (OPJ_SIZE_T)-1;
151  }
152  if (nb_bytes + reader->pos < 0) {
153  nb_bytes = -reader->pos;
154  }
155  } else {
156  int remaining;
157 
158  if (reader->pos == reader->size) {
159  return (OPJ_SIZE_T)-1;
160  }
161  remaining = reader->size - reader->pos;
162  if (nb_bytes > remaining) {
163  nb_bytes = remaining;
164  }
165  }
166  reader->pos += (int)nb_bytes;
167  return nb_bytes;
168 }
169 
170 static OPJ_BOOL stream_seek(OPJ_OFF_T nb_bytes, void *user_data)
171 {
172  BufferReader *reader = user_data;
173  if (nb_bytes < 0 || nb_bytes > reader->size) {
174  return OPJ_FALSE;
175  }
176  reader->pos = (int)nb_bytes;
177  return OPJ_TRUE;
178 }
179 #endif // OPENJPEG_MAJOR_VERSION == 2
180 
181 static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
182 {
183  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
184  int match = 1;
185 
186  if (desc->nb_components != image->numcomps) {
187  return 0;
188  }
189 
190  switch (desc->nb_components) {
191  case 4:
192  match = match &&
193  desc->comp[3].depth >= image->comps[3].prec &&
194  1 == image->comps[3].dx &&
195  1 == image->comps[3].dy;
196  case 3:
197  match = match &&
198  desc->comp[2].depth >= image->comps[2].prec &&
199  1 << desc->log2_chroma_w == image->comps[2].dx &&
200  1 << desc->log2_chroma_h == image->comps[2].dy;
201  case 2:
202  match = match &&
203  desc->comp[1].depth >= image->comps[1].prec &&
204  1 << desc->log2_chroma_w == image->comps[1].dx &&
205  1 << desc->log2_chroma_h == image->comps[1].dy;
206  case 1:
207  match = match &&
208  desc->comp[0].depth >= image->comps[0].prec &&
209  1 == image->comps[0].dx &&
210  1 == image->comps[0].dy;
211  default:
212  break;
213  }
214 
215  return match;
216 }
217 
218 static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
219  int index;
220  const enum AVPixelFormat *possible_fmts = NULL;
221  int possible_fmts_nb = 0;
222 
223  switch (image->color_space) {
224  case OPJ(CLRSPC_SRGB):
225  possible_fmts = libopenjpeg_rgb_pix_fmts;
226  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_rgb_pix_fmts);
227  break;
228  case OPJ(CLRSPC_GRAY):
229  possible_fmts = libopenjpeg_gray_pix_fmts;
230  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
231  break;
232  case OPJ(CLRSPC_SYCC):
233  possible_fmts = libopenjpeg_yuv_pix_fmts;
234  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
235  break;
236  default:
237  possible_fmts = libopenjpeg_all_pix_fmts;
238  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
239  break;
240  }
241 
242  for (index = 0; index < possible_fmts_nb; ++index)
243  if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) {
244  return possible_fmts[index];
245  }
246 
247  return AV_PIX_FMT_NONE;
248 }
249 
251 {
252  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
253  int i, component_plane;
254 
255  if (pix_fmt == AV_PIX_FMT_GRAY16)
256  return 0;
257 
258  component_plane = desc->comp[0].plane;
259  for (i = 1; i < desc->nb_components; i++)
260  if (component_plane != desc->comp[i].plane)
261  return 0;
262  return 1;
263 }
264 
265 static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) {
266  uint8_t *img_ptr;
267  int index, x, y, c;
268  for (y = 0; y < picture->height; y++) {
269  index = y * picture->width;
270  img_ptr = picture->data[0] + y * picture->linesize[0];
271  for (x = 0; x < picture->width; x++, index++)
272  for (c = 0; c < image->numcomps; c++)
273  *img_ptr++ = 0x80 * image->comps[c].sgnd + image->comps[c].data[index];
274  }
275 }
276 
277 static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) {
278  uint16_t *img_ptr;
280  int index, x, y, c;
281  int adjust[4];
282  for (x = 0; x < image->numcomps; x++)
283  adjust[x] = FFMAX(FFMIN(desc->comp[x].depth - image->comps[x].prec, 8), 0) + desc->comp[x].shift;
284 
285  for (y = 0; y < picture->height; y++) {
286  index = y * picture->width;
287  img_ptr = (uint16_t *) (picture->data[0] + y * picture->linesize[0]);
288  for (x = 0; x < picture->width; x++, index++)
289  for (c = 0; c < image->numcomps; c++)
290  *img_ptr++ = (1 << image->comps[c].prec - 1) * image->comps[c].sgnd +
291  (unsigned)image->comps[c].data[index] << adjust[c];
292  }
293 }
294 
295 static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
296  int *comp_data;
297  uint8_t *img_ptr;
298  int index, x, y;
299 
300  for (index = 0; index < image->numcomps; index++) {
301  comp_data = image->comps[index].data;
302  for (y = 0; y < image->comps[index].h; y++) {
303  img_ptr = picture->data[index] + y * picture->linesize[index];
304  for (x = 0; x < image->comps[index].w; x++) {
305  *img_ptr = 0x80 * image->comps[index].sgnd + *comp_data;
306  img_ptr++;
307  comp_data++;
308  }
309  }
310  }
311 }
312 
313 static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) {
314  int *comp_data;
315  uint16_t *img_ptr;
317  int index, x, y;
318  int adjust[4];
319  for (x = 0; x < image->numcomps; x++)
320  adjust[x] = FFMAX(FFMIN(desc->comp[x].depth - image->comps[x].prec, 8), 0) + desc->comp[x].shift;
321 
322  for (index = 0; index < image->numcomps; index++) {
323  comp_data = image->comps[index].data;
324  for (y = 0; y < image->comps[index].h; y++) {
325  img_ptr = (uint16_t *)(picture->data[index] + y * picture->linesize[index]);
326  for (x = 0; x < image->comps[index].w; x++) {
327  *img_ptr = (1 << image->comps[index].prec - 1) * image->comps[index].sgnd +
328  (unsigned)*comp_data << adjust[index];
329  img_ptr++;
330  comp_data++;
331  }
332  }
333  }
334 }
335 
337 {
338  LibOpenJPEGContext *ctx = avctx->priv_data;
339 
340  opj_set_default_decoder_parameters(&ctx->dec_params);
341  return 0;
342 }
343 
345  void *data, int *got_frame,
346  AVPacket *avpkt)
347 {
348  uint8_t *buf = avpkt->data;
349  int buf_size = avpkt->size;
350  LibOpenJPEGContext *ctx = avctx->priv_data;
351  ThreadFrame frame = { .f = data };
352  AVFrame *picture = data;
353  const AVPixFmtDescriptor *desc;
354  int width, height, ret;
355  int pixel_size = 0;
356  int ispacked = 0;
357  int i;
358  opj_image_t *image = NULL;
359 #if OPENJPEG_MAJOR_VERSION == 1
360  opj_dinfo_t *dec = NULL;
361  opj_cio_t *stream = NULL;
362 #else // OPENJPEG_MAJOR_VERSION == 2
363  BufferReader reader = {0, avpkt->size, avpkt->data};
364  opj_codec_t *dec = NULL;
365  opj_stream_t *stream = NULL;
366 #endif // OPENJPEG_MAJOR_VERSION == 1
367 
368  *got_frame = 0;
369 
370  // Check if input is a raw jpeg2k codestream or in jp2 wrapping
371  if ((AV_RB32(buf) == 12) &&
372  (AV_RB32(buf + 4) == JP2_SIG_TYPE) &&
373  (AV_RB32(buf + 8) == JP2_SIG_VALUE)) {
374  dec = opj_create_decompress(OPJ(CODEC_JP2));
375  } else {
376  /* If the AVPacket contains a jp2c box, then skip to
377  * the starting byte of the codestream. */
378  if (AV_RB32(buf + 4) == AV_RB32("jp2c"))
379  buf += 8;
380  dec = opj_create_decompress(OPJ(CODEC_J2K));
381  }
382 
383  if (!dec) {
384  av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
385  ret = AVERROR_EXTERNAL;
386  goto done;
387  }
388 
389 #if OPENJPEG_MAJOR_VERSION == 1
390  memset(&ctx->event_mgr, 0, sizeof(ctx->event_mgr));
391  ctx->event_mgr.info_handler = info_callback;
392  ctx->event_mgr.error_handler = error_callback;
393  ctx->event_mgr.warning_handler = warning_callback;
394  opj_set_event_mgr((opj_common_ptr) dec, &ctx->event_mgr, avctx);
395  ctx->dec_params.cp_limit_decoding = LIMIT_TO_MAIN_HEADER;
396  ctx->dec_params.cp_layer = ctx->lowqual;
397 #else // OPENJPEG_MAJOR_VERSION == 2
398  if (!opj_set_error_handler(dec, error_callback, avctx) ||
399  !opj_set_warning_handler(dec, warning_callback, avctx) ||
400  !opj_set_info_handler(dec, info_callback, avctx)) {
401  av_log(avctx, AV_LOG_ERROR, "Error setting decoder handlers.\n");
402  ret = AVERROR_EXTERNAL;
403  goto done;
404  }
405 
406  ctx->dec_params.cp_layer = ctx->lowqual;
407  ctx->dec_params.cp_reduce = avctx->lowres;
408 #endif // OPENJPEG_MAJOR_VERSION == 1
409 
410  // Tie decoder with decoding parameters
411  opj_setup_decoder(dec, &ctx->dec_params);
412 
413 #if OPENJPEG_MAJOR_VERSION == 1
414  stream = opj_cio_open((opj_common_ptr) dec, buf, buf_size);
415 #else // OPENJPEG_MAJOR_VERSION == 2
416  stream = opj_stream_default_create(OPJ_STREAM_READ);
417 #endif // OPENJPEG_MAJOR_VERSION == 1
418 
419  if (!stream) {
420  av_log(avctx, AV_LOG_ERROR,
421  "Codestream could not be opened for reading.\n");
422  ret = AVERROR_EXTERNAL;
423  goto done;
424  }
425 
426 #if OPENJPEG_MAJOR_VERSION == 1
427  // Decode the header only.
428  image = opj_decode_with_info(dec, stream, NULL);
429  opj_cio_close(stream);
430  stream = NULL;
431  ret = !image;
432 #else // OPENJPEG_MAJOR_VERSION == 2
433  opj_stream_set_read_function(stream, stream_read);
434  opj_stream_set_skip_function(stream, stream_skip);
435  opj_stream_set_seek_function(stream, stream_seek);
436 #if HAVE_OPENJPEG_2_3_OPENJPEG_H || HAVE_OPENJPEG_2_2_OPENJPEG_H || HAVE_OPENJPEG_2_1_OPENJPEG_H
437  opj_stream_set_user_data(stream, &reader, NULL);
438 #elif HAVE_OPENJPEG_2_0_OPENJPEG_H
439  opj_stream_set_user_data(stream, &reader);
440 #else
441 #error Missing call to opj_stream_set_user_data
442 #endif
443  opj_stream_set_user_data_length(stream, avpkt->size);
444  // Decode the header only.
445  ret = !opj_read_header(stream, dec, &image);
446 #endif // OPENJPEG_MAJOR_VERSION == 1
447 
448  if (ret) {
449  av_log(avctx, AV_LOG_ERROR, "Error decoding codestream header.\n");
450  ret = AVERROR_EXTERNAL;
451  goto done;
452  }
453 
454  width = image->x1 - image->x0;
455  height = image->y1 - image->y0;
456 
457  ret = ff_set_dimensions(avctx, width, height);
458  if (ret < 0)
459  goto done;
460 
461  if (avctx->pix_fmt != AV_PIX_FMT_NONE)
462  if (!libopenjpeg_matches_pix_fmt(image, avctx->pix_fmt))
463  avctx->pix_fmt = AV_PIX_FMT_NONE;
464 
465  if (avctx->pix_fmt == AV_PIX_FMT_NONE)
466  avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
467 
468  if (avctx->pix_fmt == AV_PIX_FMT_NONE) {
469  av_log(avctx, AV_LOG_ERROR, "Unable to determine pixel format.\n");
470  ret = AVERROR_UNKNOWN;
471  goto done;
472  }
473  for (i = 0; i < image->numcomps; i++)
474  if (image->comps[i].prec > avctx->bits_per_raw_sample)
475  avctx->bits_per_raw_sample = image->comps[i].prec;
476 
477  if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
478  goto done;
479 
480 #if OPENJPEG_MAJOR_VERSION == 1
481  ctx->dec_params.cp_limit_decoding = NO_LIMITATION;
482  ctx->dec_params.cp_reduce = avctx->lowres;
483  // Tie decoder with decoding parameters.
484  opj_setup_decoder(dec, &ctx->dec_params);
485  stream = opj_cio_open((opj_common_ptr) dec, buf, buf_size);
486  if (!stream) {
487  av_log(avctx, AV_LOG_ERROR,
488  "Codestream could not be opened for reading.\n");
489  ret = AVERROR_EXTERNAL;
490  goto done;
491  }
492  opj_image_destroy(image);
493  // Decode the codestream
494  image = opj_decode_with_info(dec, stream, NULL);
495  ret = !image;
496 #else // OPENJPEG_MAJOR_VERSION == 2
497  ret = !opj_decode(dec, stream, image);
498 #endif // OPENJPEG_MAJOR_VERSION == 1
499 
500  if (ret) {
501  av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
502  ret = AVERROR_EXTERNAL;
503  goto done;
504  }
505 
506  for (i = 0; i < image->numcomps; i++) {
507  if (!image->comps[i].data) {
508  av_log(avctx, AV_LOG_ERROR,
509  "Image component %d contains no data.\n", i);
510  ret = AVERROR_INVALIDDATA;
511  goto done;
512  }
513  }
514 
515  desc = av_pix_fmt_desc_get(avctx->pix_fmt);
516  pixel_size = desc->comp[0].step;
517  ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
518 
519  switch (pixel_size) {
520  case 1:
521  if (ispacked) {
522  libopenjpeg_copy_to_packed8(picture, image);
523  } else {
524  libopenjpeg_copyto8(picture, image);
525  }
526  break;
527  case 2:
528  if (ispacked) {
529  libopenjpeg_copy_to_packed8(picture, image);
530  } else {
531  libopenjpeg_copyto16(picture, image);
532  }
533  break;
534  case 3:
535  case 4:
536  if (ispacked) {
537  libopenjpeg_copy_to_packed8(picture, image);
538  }
539  break;
540  case 6:
541  case 8:
542  if (ispacked) {
543  libopenjpeg_copy_to_packed16(picture, image);
544  }
545  break;
546  default:
547  avpriv_report_missing_feature(avctx, "Pixel size %d", pixel_size);
548  ret = AVERROR_PATCHWELCOME;
549  goto done;
550  }
551 
552  *got_frame = 1;
553  picture->pict_type = AV_PICTURE_TYPE_I;
554  picture->key_frame = 1;
555  ret = buf_size;
556 
557 done:
558  opj_image_destroy(image);
559 #if OPENJPEG_MAJOR_VERSION == 2
560  opj_stream_destroy(stream);
561  opj_destroy_codec(dec);
562 #else
563  opj_cio_close(stream);
564  opj_destroy_decompress(dec);
565 #endif
566  return ret;
567 }
568 
570 {
571  const char *version = opj_version();
572  int major, minor;
573 
574  if (sscanf(version, "%d.%d", &major, &minor) == 2 && 1000*major + minor <= 1003)
576 }
577 
578 #define OFFSET(x) offsetof(LibOpenJPEGContext, x)
579 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
580 
581 static const AVOption options[] = {
582  { "lowqual", "Limit the number of layers used for decoding",
583  OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
584  { NULL },
585 };
586 
587 static const AVClass openjpeg_class = {
588  .class_name = "libopenjpeg",
589  .item_name = av_default_item_name,
590  .option = options,
591  .version = LIBAVUTIL_VERSION_INT,
592 };
593 
595  .name = "libopenjpeg",
596  .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
597  .type = AVMEDIA_TYPE_VIDEO,
598  .id = AV_CODEC_ID_JPEG2000,
599  .priv_data_size = sizeof(LibOpenJPEGContext),
603  .max_lowres = 31,
604  .priv_class = &openjpeg_class,
605  .init_static_data = libopenjpeg_static_init,
606 };
static void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image)
int plane
Which of the 4 planes contains the component.
Definition: pixdesc.h:35
static int libopenjpeg_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
#define NULL
Definition: coverity.c:32
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static enum AVPixelFormat pix_fmt
static int libopenjpeg_ispacked(enum AVPixelFormat pix_fmt)
const AVPixFmtDescriptor * av_pix_fmt_desc_get(enum AVPixelFormat pix_fmt)
Definition: pixdesc.c:2419
This structure describes decoded (raw) audio or video data.
Definition: frame.h:201
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
misc image utilities
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define LIBAVUTIL_VERSION_INT
Definition: version.h:86
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
Definition: utils.c:211
const char * desc
Definition: nvenc.c:60
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int size
Definition: avcodec.h:1680
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
Definition: ffplay.c:1475
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1989
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1057
int version
Definition: avisynth_c.h:766
static const AVClass openjpeg_class
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition: avcodec.h:3164
static enum AVPixelFormat libopenjpeg_gray_pix_fmts[]
#define JP2_SIG_TYPE
AVCodec.
Definition: avcodec.h:3739
static void decode(AVCodecContext *dec_ctx, AVPacket *pkt, AVFrame *frame, FILE *outfile)
Definition: decode_audio.c:42
uint8_t log2_chroma_w
Amount to shift the luma width right to find the chroma width.
Definition: pixdesc.h:92
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
Definition: log.h:72
AVComponentDescriptor comp[4]
Parameters that describe how pixels are packed.
Definition: pixdesc.h:117
uint8_t
#define av_cold
Definition: attributes.h:82
AVOptions.
#define XYZ_PIXEL_FORMATS
Multithreading support functions.
static void warning_callback(const char *msg, void *data)
static av_cold int libopenjpeg_decode_init(AVCodecContext *avctx)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_RB32
Definition: bytestream.h:87
static AVFrame * frame
#define height
uint8_t * data
Definition: avcodec.h:1679
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:3172
ptrdiff_t size
Definition: opengl_enc.c:101
static void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image)
#define YUV_PIXEL_FORMATS
#define av_log(a,...)
static void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image)
#define JP2_SIG_VALUE
int width
Definition: frame.h:259
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
uint8_t log2_chroma_h
Amount to shift the luma height right to find the chroma height.
Definition: pixdesc.h:101
av_default_item_name
#define CODEC_J2K
Definition: j2kenc.c:80
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:179
AVS_Value void * user_data
Definition: avisynth_c.h:699
int capabilities
Codec capabilities.
Definition: avcodec.h:3758
static enum AVPixelFormat libopenjpeg_all_pix_fmts[]
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
uint16_t width
Definition: gdv.c:47
tuple adjust
Definition: normalize.py:25
const char * name
Name of the codec implementation.
Definition: avcodec.h:3746
#define FFMAX(a, b)
Definition: common.h:94
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1065
static void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image)
#define RGB_PIXEL_FORMATS
uint8_t nb_components
The number of components each pixel has, (1-4)
Definition: pixdesc.h:83
enum AVPictureType pict_type
Picture type of the frame.
Definition: frame.h:284
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:363
#define FFMIN(a, b)
Definition: common.h:96
AVFormatContext * ctx
Definition: movenc.c:48
static enum AVPixelFormat libopenjpeg_yuv_pix_fmts[]
#define CODEC_JP2
Definition: j2kenc.c:79
#define FF_ARRAY_ELEMS(a)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
int format
format of the frame, -1 if unknown or unset Values correspond to enum AVPixelFormat for video frames...
Definition: frame.h:274
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:232
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
Definition: pixdesc.h:81
int ff_thread_get_buffer(AVCodecContext *avctx, ThreadFrame *f, int flags)
Wrapper around get_buffer() for frame-multithreaded codecs.
main external API structure.
Definition: avcodec.h:1761
void * buf
Definition: avisynth_c.h:690
Describe the class of an AVClass context structure.
Definition: log.h:67
static enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image)
opj_event_mgr_t event_mgr
int index
Definition: gxfenc.c:89
static enum AVPixelFormat libopenjpeg_rgb_pix_fmts[]
#define VD
#define OPJ(x)
int shift
Number of least significant bits that must be shifted away to get the value.
Definition: pixdesc.h:53
static av_cold void libopenjpeg_static_init(AVCodec *codec)
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
static void info_callback(const char *msg, void *data)
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
Definition: frame.h:215
int
common internal api header.
common internal and external API header
static int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
static double c[64]
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
void * priv_data
Definition: avcodec.h:1803
pixel format definitions
static const AVOption options[]
static void error_callback(const char *msg, void *data)
int key_frame
1 -> keyframe, 0-> not
Definition: frame.h:279
opj_dparameters_t dec_params
int height
Definition: frame.h:259
AVCodec ff_libopenjpeg_decoder
#define OFFSET(x)
int depth
Number of bits in the component.
Definition: pixdesc.h:58
#define AVERROR_EXTERNAL
Generic error in an external library.
Definition: error.h:57
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
This structure stores compressed data.
Definition: avcodec.h:1656
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:1002
GLuint buffer
Definition: opengl_enc.c:102
int step
Number of elements between 2 horizontally consecutive pixels.
Definition: pixdesc.h:41
#define GRAY_PIXEL_FORMATS