2 * Copyright (c) 2003-2004, Fran�ois-Olivier Devaux
3 * Copyright (c) 2002-2004, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
33 #include "../libopenjpeg/j2k_lib.h"
34 #include "../libopenjpeg/j2k.h"
35 #include "../libopenjpeg/jp2.h"
37 #include "mj2_convert.h"
39 /* -------------------------------------------------------------------------- */
42 sample error callback expecting a FILE* client object
44 void error_callback(const char *msg, void *client_data) {
45 FILE *stream = (FILE*)client_data;
46 fprintf(stream, "[ERROR] %s", msg);
49 sample warning callback expecting a FILE* client object
51 void warning_callback(const char *msg, void *client_data) {
52 FILE *stream = (FILE*)client_data;
53 fprintf(stream, "[WARNING] %s", msg);
56 sample debug callback expecting a FILE* client object
58 void info_callback(const char *msg, void *client_data) {
59 FILE *stream = (FILE*)client_data;
60 fprintf(stream, "[INFO] %s", msg);
63 /* -------------------------------------------------------------------------- */
66 int main(int argc, char *argv[]) {
67 mj2_dparameters_t mj2_parameters; /* decompression parameters */
69 opj_event_mgr_t event_mgr; /* event manager */
70 opj_cio_t *cio = NULL;
71 unsigned int tnum, snum;
75 unsigned char* frame_codestream;
78 opj_image_t *img = NULL;
79 unsigned int max_codstrm_size = 0;
80 double total_time = 0;
81 unsigned int numframes = 0;
84 printf("Usage: %s inputfile.mj2 outputfile.yuv\n",argv[0]);
88 file = fopen(argv[1], "rb");
91 fprintf(stderr, "failed to open %s for reading\n", argv[1]);
95 // Checking output file
96 outfile = fopen(argv[2], "w");
98 fprintf(stderr, "failed to open %s for writing\n", argv[2]);
104 configure the event callbacks (not required)
105 setting of each callback is optionnal
107 memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
108 event_mgr.error_handler = error_callback;
109 event_mgr.warning_handler = warning_callback;
110 event_mgr.info_handler = NULL;
112 /* get a MJ2 decompressor handle */
113 dinfo = mj2_create_decompress();
114 movie = (opj_mj2_t*)dinfo->mj2_handle;
116 /* catch events using our callbacks and give a local context */
117 opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
119 /* set J2K decoding parameters to default values */
120 opj_set_default_decoder_parameters(&mj2_parameters.j2k_parameters);
122 /* setup the decoder decoding parameters using user parameters */
123 mj2_setup_decoder((opj_mj2_t*)dinfo->mj2_handle, &mj2_parameters);
125 if (mj2_read_struct(file, movie)) // Creating the movie structure
128 // Decode first video track
129 for (tnum=0; tnum < (unsigned int)(movie->num_htk + movie->num_stk + movie->num_vtk); tnum++) {
130 if (movie->tk[tnum].track_type == 0)
134 if (movie->tk[tnum].track_type != 0) {
135 printf("Error. Movie does not contain any video track\n");
139 track = &movie->tk[tnum];
141 // Output info on first video tracl
142 fprintf(stdout,"The first video track contains %d frames.\nWidth: %d, Height: %d \n\n",
143 track->num_samples, track->w, track->h);
145 max_codstrm_size = track->sample[0].sample_size-8;
146 frame_codestream = (unsigned char*) malloc(max_codstrm_size * sizeof(unsigned char));
148 numframes = track->num_samples;
150 for (snum=0; snum < numframes; snum++)
152 double init_time = opj_clock();
155 sample = &track->sample[snum];
156 if (sample->sample_size-8 > max_codstrm_size) {
157 max_codstrm_size = sample->sample_size-8;
158 if ((frame_codestream = (unsigned char*)
159 realloc(frame_codestream, max_codstrm_size)) == NULL) {
160 printf("Error reallocation memory\n");
164 fseek(file,sample->offset+8,SEEK_SET);
165 fread(frame_codestream, sample->sample_size-8, 1, file); // Assuming that jp and ftyp markers size do
167 /* open a byte stream */
168 cio = opj_cio_open((opj_common_ptr)dinfo, frame_codestream, sample->sample_size-8);
170 img = opj_decode(dinfo, cio); // Decode J2K to image
172 if (((img->numcomps == 3) && (img->comps[0].dx == img->comps[1].dx / 2)
173 && (img->comps[0].dx == img->comps[2].dx / 2 ) && (img->comps[0].dx == 1))
174 || (img->numcomps == 1)) {
176 if (!imagetoyuv(img, argv[2])) // Convert image to YUV
179 else if ((img->numcomps == 3) &&
180 (img->comps[0].dx == 1) && (img->comps[1].dx == 1)&&
181 (img->comps[2].dx == 1))// If YUV 4:4:4 input --> to bmp
183 fprintf(stdout,"The frames will be output in a bmp format (output_1.bmp, ...)\n");
184 sprintf(outfilename,"output_%d.bmp",snum);
185 if (imagetobmp(img, outfilename)) // Convert image to BMP
190 fprintf(stdout,"Image component dimensions are unknown. Unable to output image\n");
191 fprintf(stdout,"The frames will be output in a j2k file (output_1.j2k, ...)\n");
193 sprintf(outfilename,"output_%d.j2k",snum);
194 outfile = fopen(outfilename, "wb");
196 fprintf(stderr, "failed to open %s for writing\n",outfilename);
199 fwrite(frame_codestream,sample->sample_size-8,1,outfile);
202 /* close the byte stream */
204 /* free image data structure */
205 opj_image_destroy(img);
206 elapsed_time = opj_clock()-init_time;
207 fprintf(stderr, "Frame number %d/%d decoded in %.2f mseconds\n", snum + 1, numframes, elapsed_time*1000);
208 total_time += elapsed_time;
212 free(frame_codestream);
215 /* free remaining structures */
217 mj2_destroy_decompress((opj_mj2_t*)dinfo->mj2_handle);
221 fprintf(stdout, "%d frame(s) correctly decompressed\n", snum);
222 fprintf(stdout,"Total decoding time: %.2f seconds (%.1f fps)\n", total_time, (float)numframes/total_time);