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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_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>
43 #else
44 # include <openjpeg.h>
45 #endif
46 
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
50 #else
51 # define OPENJPEG_MAJOR_VERSION 1
52 # define OPJ(x) x
53 #endif
54 
55 #define JP2_SIG_TYPE 0x6A502020
56 #define JP2_SIG_VALUE 0x0D0A870A
57 
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
62 
63 #define GRAY_PIXEL_FORMATS AV_PIX_FMT_GRAY8, AV_PIX_FMT_YA8, \
64  AV_PIX_FMT_GRAY16, AV_PIX_FMT_YA16
65 
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
77 
78 #define XYZ_PIXEL_FORMATS AV_PIX_FMT_XYZ12
79 
80 static const enum AVPixelFormat libopenjpeg_rgb_pix_fmts[] = {
82 };
85 };
86 static const enum AVPixelFormat libopenjpeg_yuv_pix_fmts[] = {
88 };
89 static const enum AVPixelFormat libopenjpeg_all_pix_fmts[] = {
91 };
92 
93 typedef struct LibOpenJPEGContext {
94  AVClass *class;
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
99  int lowqual;
101 
102 static void error_callback(const char *msg, void *data)
103 {
104  av_log(data, AV_LOG_ERROR, "%s", msg);
105 }
106 
107 static void warning_callback(const char *msg, void *data)
108 {
109  av_log(data, AV_LOG_WARNING, "%s", msg);
110 }
111 
112 static void info_callback(const char *msg, void *data)
113 {
114  av_log(data, AV_LOG_DEBUG, "%s", msg);
115 }
116 
117 #if OPENJPEG_MAJOR_VERSION == 2
118 typedef struct BufferReader {
119  int pos;
120  int size;
121  const uint8_t *buffer;
122 } BufferReader;
123 
124 static OPJ_SIZE_T stream_read(void *out_buffer, OPJ_SIZE_T nb_bytes, void *user_data)
125 {
126  BufferReader *reader = user_data;
127  int remaining;
128 
129  if (reader->pos == reader->size) {
130  return (OPJ_SIZE_T)-1;
131  }
132  remaining = reader->size - reader->pos;
133  if (nb_bytes > remaining) {
134  nb_bytes = remaining;
135  }
136  memcpy(out_buffer, reader->buffer + reader->pos, nb_bytes);
137  reader->pos += (int)nb_bytes;
138  return nb_bytes;
139 }
140 
141 static OPJ_OFF_T stream_skip(OPJ_OFF_T nb_bytes, void *user_data)
142 {
143  BufferReader *reader = user_data;
144  if (nb_bytes < 0) {
145  if (reader->pos == 0) {
146  return (OPJ_SIZE_T)-1;
147  }
148  if (nb_bytes + reader->pos < 0) {
149  nb_bytes = -reader->pos;
150  }
151  } else {
152  int remaining;
153 
154  if (reader->pos == reader->size) {
155  return (OPJ_SIZE_T)-1;
156  }
157  remaining = reader->size - reader->pos;
158  if (nb_bytes > remaining) {
159  nb_bytes = remaining;
160  }
161  }
162  reader->pos += (int)nb_bytes;
163  return nb_bytes;
164 }
165 
166 static OPJ_BOOL stream_seek(OPJ_OFF_T nb_bytes, void *user_data)
167 {
168  BufferReader *reader = user_data;
169  if (nb_bytes < 0 || nb_bytes > reader->size) {
170  return OPJ_FALSE;
171  }
172  reader->pos = (int)nb_bytes;
173  return OPJ_TRUE;
174 }
175 #endif // OPENJPEG_MAJOR_VERSION == 2
176 
177 static inline int libopenjpeg_matches_pix_fmt(const opj_image_t *image, enum AVPixelFormat pix_fmt)
178 {
179  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
180  int match = 1;
181 
182  if (desc->nb_components != image->numcomps) {
183  return 0;
184  }
185 
186  switch (desc->nb_components) {
187  case 4:
188  match = match &&
189  desc->comp[3].depth >= image->comps[3].prec &&
190  1 == image->comps[3].dx &&
191  1 == image->comps[3].dy;
192  case 3:
193  match = match &&
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;
197  case 2:
198  match = match &&
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;
202  case 1:
203  match = match &&
204  desc->comp[0].depth >= image->comps[0].prec &&
205  1 == image->comps[0].dx &&
206  1 == image->comps[0].dy;
207  default:
208  break;
209  }
210 
211  return match;
212 }
213 
214 static inline enum AVPixelFormat libopenjpeg_guess_pix_fmt(const opj_image_t *image) {
215  int index;
216  const enum AVPixelFormat *possible_fmts = NULL;
217  int possible_fmts_nb = 0;
218 
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);
223  break;
224  case OPJ(CLRSPC_GRAY):
225  possible_fmts = libopenjpeg_gray_pix_fmts;
226  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_gray_pix_fmts);
227  break;
228  case OPJ(CLRSPC_SYCC):
229  possible_fmts = libopenjpeg_yuv_pix_fmts;
230  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_yuv_pix_fmts);
231  break;
232  default:
233  possible_fmts = libopenjpeg_all_pix_fmts;
234  possible_fmts_nb = FF_ARRAY_ELEMS(libopenjpeg_all_pix_fmts);
235  break;
236  }
237 
238  for (index = 0; index < possible_fmts_nb; ++index)
239  if (libopenjpeg_matches_pix_fmt(image, possible_fmts[index])) {
240  return possible_fmts[index];
241  }
242 
243  return AV_PIX_FMT_NONE;
244 }
245 
247 {
248  const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
249  int i, component_plane;
250 
251  if (pix_fmt == AV_PIX_FMT_GRAY16)
252  return 0;
253 
254  component_plane = desc->comp[0].plane;
255  for (i = 1; i < desc->nb_components; i++)
256  if (component_plane != desc->comp[i].plane)
257  return 0;
258  return 1;
259 }
260 
261 static inline void libopenjpeg_copy_to_packed8(AVFrame *picture, opj_image_t *image) {
262  uint8_t *img_ptr;
263  int index, x, y, c;
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];
270  }
271 }
272 
273 static inline void libopenjpeg_copy_to_packed16(AVFrame *picture, opj_image_t *image) {
274  uint16_t *img_ptr;
276  int index, x, y, c;
277  int adjust[4];
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;
280 
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];
288  }
289 }
290 
291 static inline void libopenjpeg_copyto8(AVFrame *picture, opj_image_t *image) {
292  int *comp_data;
293  uint8_t *img_ptr;
294  int index, x, y;
295 
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;
302  img_ptr++;
303  comp_data++;
304  }
305  }
306  }
307 }
308 
309 static inline void libopenjpeg_copyto16(AVFrame *picture, opj_image_t *image) {
310  int *comp_data;
311  uint16_t *img_ptr;
313  int index, x, y;
314  int adjust[4];
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;
317 
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];
325  img_ptr++;
326  comp_data++;
327  }
328  }
329  }
330 }
331 
333 {
334  LibOpenJPEGContext *ctx = avctx->priv_data;
335 
336  opj_set_default_decoder_parameters(&ctx->dec_params);
337  return 0;
338 }
339 
341  void *data, int *got_frame,
342  AVPacket *avpkt)
343 {
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;
351  int pixel_size = 0;
352  int ispacked = 0;
353  int i;
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
363 
364  *got_frame = 0;
365 
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));
371  } else {
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"))
375  buf += 8;
376  dec = opj_create_decompress(OPJ(CODEC_J2K));
377  }
378 
379  if (!dec) {
380  av_log(avctx, AV_LOG_ERROR, "Error initializing decoder.\n");
381  ret = AVERROR_EXTERNAL;
382  goto done;
383  }
384 
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;
399  goto done;
400  }
401 
402  ctx->dec_params.cp_layer = ctx->lowqual;
403  ctx->dec_params.cp_reduce = avctx->lowres;
404 #endif // OPENJPEG_MAJOR_VERSION == 1
405 
406  // Tie decoder with decoding parameters
407  opj_setup_decoder(dec, &ctx->dec_params);
408 
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
414 
415  if (!stream) {
416  av_log(avctx, AV_LOG_ERROR,
417  "Codestream could not be opened for reading.\n");
418  ret = AVERROR_EXTERNAL;
419  goto done;
420  }
421 
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);
426  stream = NULL;
427  ret = !image;
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);
436 #else
437 #error Missing call to opj_stream_set_user_data
438 #endif
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
443 
444  if (ret) {
445  av_log(avctx, AV_LOG_ERROR, "Error decoding codestream header.\n");
446  ret = AVERROR_EXTERNAL;
447  goto done;
448  }
449 
450  width = image->x1 - image->x0;
451  height = image->y1 - image->y0;
452 
453  ret = ff_set_dimensions(avctx, width, height);
454  if (ret < 0)
455  goto done;
456 
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;
460 
461  if (avctx->pix_fmt == AV_PIX_FMT_NONE)
462  avctx->pix_fmt = libopenjpeg_guess_pix_fmt(image);
463 
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;
467  goto done;
468  }
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;
472 
473  if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
474  goto done;
475 
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);
482  if (!stream) {
483  av_log(avctx, AV_LOG_ERROR,
484  "Codestream could not be opened for reading.\n");
485  ret = AVERROR_EXTERNAL;
486  goto done;
487  }
488  opj_image_destroy(image);
489  // Decode the codestream
490  image = opj_decode_with_info(dec, stream, NULL);
491  ret = !image;
492 #else // OPENJPEG_MAJOR_VERSION == 2
493  ret = !opj_decode(dec, stream, image);
494 #endif // OPENJPEG_MAJOR_VERSION == 1
495 
496  if (ret) {
497  av_log(avctx, AV_LOG_ERROR, "Error decoding codestream.\n");
498  ret = AVERROR_EXTERNAL;
499  goto done;
500  }
501 
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;
507  goto done;
508  }
509  }
510 
511  desc = av_pix_fmt_desc_get(avctx->pix_fmt);
512  pixel_size = desc->comp[0].step;
513  ispacked = libopenjpeg_ispacked(avctx->pix_fmt);
514 
515  switch (pixel_size) {
516  case 1:
517  if (ispacked) {
518  libopenjpeg_copy_to_packed8(picture, image);
519  } else {
520  libopenjpeg_copyto8(picture, image);
521  }
522  break;
523  case 2:
524  if (ispacked) {
525  libopenjpeg_copy_to_packed8(picture, image);
526  } else {
527  libopenjpeg_copyto16(picture, image);
528  }
529  break;
530  case 3:
531  case 4:
532  if (ispacked) {
533  libopenjpeg_copy_to_packed8(picture, image);
534  }
535  break;
536  case 6:
537  case 8:
538  if (ispacked) {
539  libopenjpeg_copy_to_packed16(picture, image);
540  }
541  break;
542  default:
543  av_log(avctx, AV_LOG_ERROR, "unsupported pixel size %d\n", pixel_size);
544  ret = AVERROR_PATCHWELCOME;
545  goto done;
546  }
547 
548  *got_frame = 1;
549  ret = buf_size;
550 
551 done:
552  opj_image_destroy(image);
553 #if OPENJPEG_MAJOR_VERSION == 2
554  opj_stream_destroy(stream);
555  opj_destroy_codec(dec);
556 #else
557  opj_cio_close(stream);
558  opj_destroy_decompress(dec);
559 #endif
560  return ret;
561 }
562 
564 {
565  const char *version = opj_version();
566  int major, minor;
567 
568  if (sscanf(version, "%d.%d", &major, &minor) == 2 && 1000*major + minor <= 1003)
570 }
571 
572 #define OFFSET(x) offsetof(LibOpenJPEGContext, x)
573 #define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
574 
575 static const AVOption options[] = {
576  { "lowqual", "Limit the number of layers used for decoding",
577  OFFSET(lowqual), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, VD },
578  { NULL },
579 };
580 
581 static const AVClass openjpeg_class = {
582  .class_name = "libopenjpeg",
583  .item_name = av_default_item_name,
584  .option = options,
585  .version = LIBAVUTIL_VERSION_INT,
586 };
587 
589  .name = "libopenjpeg",
590  .long_name = NULL_IF_CONFIG_SMALL("OpenJPEG JPEG 2000"),
591  .type = AVMEDIA_TYPE_VIDEO,
592  .id = AV_CODEC_ID_JPEG2000,
593  .priv_data_size = sizeof(LibOpenJPEGContext),
597  .max_lowres = 31,
598  .priv_class = &openjpeg_class,
599  .init_static_data = libopenjpeg_static_init,
600 };
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:2332
This structure describes decoded (raw) audio or video data.
Definition: frame.h:190
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:85
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:210
const char * desc
Definition: nvenc.c:60
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
int size
Definition: avcodec.h:1608
static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
Definition: ffplay.c:1422
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
Definition: avcodec.h:1910
#define AV_CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
Definition: avcodec.h:1014
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:3084
static enum AVPixelFormat libopenjpeg_gray_pix_fmts[]
#define JP2_SIG_TYPE
AVCodec.
Definition: avcodec.h:3607
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:1607
int lowres
low resolution decoding, 1-> 1/2 size, 2->1/4 size
Definition: avcodec.h:3094
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
width and height of the video frame
Definition: frame.h:242
#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:176
AVS_Value void * user_data
Definition: avisynth_c.h:699
int capabilities
Codec capabilities.
Definition: avcodec.h:3626
static enum AVPixelFormat libopenjpeg_all_pix_fmts[]
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
tuple adjust
Definition: normalize.py:25
const char * name
Name of the codec implementation.
Definition: avcodec.h:3614
#define FFMAX(a, b)
Definition: common.h:94
#define AV_CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
Definition: avcodec.h:1022
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
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:335
#define FFMIN(a, b)
Definition: common.h:96
#define width
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:254
Libavcodec external API header.
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
Definition: frame.h:221
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:1682
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)
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:204
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)
#define AVERROR_UNKNOWN
Unknown error, typically from an external library.
Definition: error.h:71
void * priv_data
Definition: avcodec.h:1724
pixel format definitions
static const AVOption options[]
static void error_callback(const char *msg, void *data)
static AVCodec * c
opj_dparameters_t dec_params
int height
Definition: frame.h:242
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
Definition: ffmpeg.c:2045
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:1584
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:959
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