Ejemplo n.º 1
0
int main(int argc, char **argv)
{
	mj2_cparameters_t mj2_parameters;	/* MJ2 compression parameters */
	opj_cparameters_t *j2k_parameters;	/* J2K compression parameters */
	opj_event_mgr_t event_mgr;		/* event manager */
	opj_cio_t *cio;
	int value;
	opj_mj2_t *movie;
	opj_image_t *img;
	int i, j;
	char *s, S1, S2, S3;
	unsigned char *buf;
	int x1, y1,  len;
	long mdat_initpos, offset;
	FILE *mj2file;
	int sampleno;  
	opj_cinfo_t* cinfo;
	opj_bool bSuccess;
	int numframes;
	int prec = 8;/* DEFAULT */
	double total_time = 0;	

	memset(&mj2_parameters, 0, sizeof(mj2_cparameters_t));
  /* default value */
  /* ------------- */
	mj2_parameters.w = 352;			/* CIF default value*/
	mj2_parameters.h = 288;			/* CIF default value*/
	mj2_parameters.CbCr_subsampling_dx = 2;	/* CIF default value*/
	mj2_parameters.CbCr_subsampling_dy = 2;	/* CIF default value*/
	mj2_parameters.frame_rate = 25;
	mj2_parameters.prec = 8; /* DEFAULT */
	mj2_parameters.enumcs = ENUMCS_SYCC; /* FIXME: ENUMCS_YUV420 */
	mj2_parameters.meth = 1; /* enumerated color space */

/*
	configure the event callbacks (not required)
	setting of each callback is optionnal
*/
	memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
	event_mgr.error_handler = error_callback;
	event_mgr.warning_handler = warning_callback;
	event_mgr.info_handler = NULL;
    
	/* set J2K encoding parameters to default values */
	opj_set_default_encoder_parameters(&mj2_parameters.j2k_parameters);
	j2k_parameters = &mj2_parameters.j2k_parameters;

	/* Create comment for codestream */
	if(j2k_parameters->cp_comment == NULL) {
    const char comment[] = "Created by OpenJPEG version ";
		const size_t clen = strlen(comment);
    const char *version = opj_version();
		j2k_parameters->cp_comment = (char*)malloc(clen+strlen(version)+1);
		sprintf(j2k_parameters->cp_comment,"%s%s", comment, version);
	}

  while (1) {
    int c = opj_getopt(argc, argv,
      "i:o:r:q:f:t:n:c:b:p:s:d:P:S:E:M:R:T:C:I:W:F:D:h");
    if (c == -1)
      break;
    switch (c) {
    case 'i':			/* IN fill */
			{
				char *infile = opj_optarg;
				s = opj_optarg;
				while (*s) {
					s++;
				}
				s--;
				S3 = *s;
				s--;
				S2 = *s;
				s--;
				S1 = *s;
				
				if ((S1 == 'y' && S2 == 'u' && S3 == 'v')
					|| (S1 == 'Y' && S2 == 'U' && S3 == 'V')) {
					mj2_parameters.decod_format = YUV_DFMT;				
				}
				else {
					fprintf(stderr,
						"!! Unrecognized format for infile : %c%c%c [accept only *.yuv] !!\n\n",
						S1, S2, S3);
					return 1;
				}
				strncpy(mj2_parameters.infile, infile, sizeof(mj2_parameters.infile)-1);
			}
      break;
      /* ----------------------------------------------------- */
    case 'o':			/* OUT fill */
			{
				char *outfile = opj_optarg;
				while (*outfile) {
					outfile++;
				}
				outfile--;
				S3 = *outfile;
				outfile--;
				S2 = *outfile;
				outfile--;
				S1 = *outfile;
				
				outfile = opj_optarg;
				
				if ((S1 == 'm' && S2 == 'j' && S3 == '2')
					|| (S1 == 'M' && S2 == 'J' && S3 == '2'))
					mj2_parameters.cod_format = MJ2_CFMT;
				else {
					fprintf(stderr,
						"Unknown output format image *.%c%c%c [only *.mj2]!! \n",
						S1, S2, S3);
					return 1;
				}
				strncpy(mj2_parameters.outfile, outfile, sizeof(mj2_parameters.outfile)-1);      
      }
      break;
      /* ----------------------------------------------------- */
    case 'r':			/* rates rates/distorsion */
			{
				float rate;
				s = opj_optarg;
				while (sscanf(s, "%f", &rate) == 1) {
					j2k_parameters->tcp_rates[j2k_parameters->tcp_numlayers] = rate * 2;
					j2k_parameters->tcp_numlayers++;
					while (*s && *s != ',') {
						s++;
					}
					if (!*s)
						break;
					s++;
				}
				j2k_parameters->cp_disto_alloc = 1;
			}
      break;
      /* ----------------------------------------------------- */
    case 'q':			/* add fixed_quality */
      s = opj_optarg;
			while (sscanf(s, "%f", &j2k_parameters->tcp_distoratio[j2k_parameters->tcp_numlayers]) == 1) {
				j2k_parameters->tcp_numlayers++;
				while (*s && *s != ',') {
					s++;
				}
				if (!*s)
					break;
				s++;
			}
			j2k_parameters->cp_fixed_quality = 1;
      break;
      /* dda */
      /* ----------------------------------------------------- */
    case 'f':			/* mod fixed_quality (before : -q) */
			{
				int *row = NULL, *col = NULL;
				int numlayers = 0, numresolution = 0, matrix_width = 0;
				
				s = opj_optarg;
				sscanf(s, "%d", &numlayers);
				s++;
				if (numlayers > 9)
					s++;
				
				j2k_parameters->tcp_numlayers = numlayers;
				numresolution = j2k_parameters->numresolution;
				matrix_width = numresolution * 3;
				j2k_parameters->cp_matrice = (int *) malloc(numlayers * matrix_width * sizeof(int));
				s = s + 2;
				
				for (i = 0; i < numlayers; i++) {
					row = &j2k_parameters->cp_matrice[i * matrix_width];
					col = row;
					j2k_parameters->tcp_rates[i] = 1;
					sscanf(s, "%d,", &col[0]);
					s += 2;
					if (col[0] > 9)
						s++;
					col[1] = 0;
					col[2] = 0;
					for (j = 1; j < numresolution; j++) {
						col += 3;
						sscanf(s, "%d,%d,%d", &col[0], &col[1], &col[2]);
						s += 6;
						if (col[0] > 9)
							s++;
						if (col[1] > 9)
							s++;
						if (col[2] > 9)
							s++;
					}
					if (i < numlayers - 1)
						s++;
				}
				j2k_parameters->cp_fixed_alloc = 1;
			}
			break;
      /* ----------------------------------------------------- */
    case 't':			/* tiles */
      sscanf(opj_optarg, "%d,%d", &j2k_parameters->cp_tdx, &j2k_parameters->cp_tdy);
			j2k_parameters->tile_size_on = OPJ_TRUE;
      break;
      /* ----------------------------------------------------- */
    case 'n':			/* resolution */
      sscanf(opj_optarg, "%d", &j2k_parameters->numresolution);
      break;
      /* ----------------------------------------------------- */
    case 'c':			/* precinct dimension */
			{
				char sep;
				int res_spec = 0;

				char *s = opj_optarg;
				do {
					sep = 0;
					sscanf(s, "[%d,%d]%c", &j2k_parameters->prcw_init[res_spec],
                                 &j2k_parameters->prch_init[res_spec], &sep);
					j2k_parameters->csty |= 0x01;
					res_spec++;
					s = strpbrk(s, "]") + 2;
				}
				while (sep == ',');
				j2k_parameters->res_spec = res_spec;
			}
			break;

      /* ----------------------------------------------------- */
    case 'b':			/* code-block dimension */
			{
				int cblockw_init = 0, cblockh_init = 0;
				sscanf(opj_optarg, "%d,%d", &cblockw_init, &cblockh_init);
				if (cblockw_init * cblockh_init > 4096 || cblockw_init > 1024
					|| cblockw_init < 4 || cblockh_init > 1024 || cblockh_init < 4) {
					fprintf(stderr,
						"!! Size of code_block error (option -b) !!\n\nRestriction :\n"
            "    * width*height<=4096\n    * 4<=width,height<= 1024\n\n");
					return 1;
				}
				j2k_parameters->cblockw_init = cblockw_init;
				j2k_parameters->cblockh_init = cblockh_init;
			}
			break;
      /* ----------------------------------------------------- */
    case 'p':			/* progression order */
			{
				char progression[5];
				
				strncpy(progression, opj_optarg, 5);
				j2k_parameters->prog_order = give_progression(progression);
				if (j2k_parameters->prog_order == -1) {
					fprintf(stderr, "Unrecognized progression order "
            "[LRCP, RLCP, RPCL, PCRL, CPRL] !!\n");
					return 1;
				}
			}
			break;
      /* ----------------------------------------------------- */
    case 's':			/* subsampling factor */
      {
				if (sscanf(opj_optarg, "%d,%d", &j2k_parameters->subsampling_dx,
                                    &j2k_parameters->subsampling_dy) != 2) {
					fprintf(stderr,	"'-s' sub-sampling argument error !  [-s dx,dy]\n");
					return 1;
				}
			}
			break;
      /* ----------------------------------------------------- */
    case 'd':			/* coordonnate of the reference grid */
      {
				if (sscanf(opj_optarg, "%d,%d", &j2k_parameters->image_offset_x0,
                                    &j2k_parameters->image_offset_y0) != 2) {
					fprintf(stderr,	"-d 'coordonnate of the reference grid' argument "
            "error !! [-d x0,y0]\n");
					return 1;
				}
			}
			break;
      /* ----------------------------------------------------- */
    case 'h':			/* Display an help description */
      help_display();
      return 0;
      break;
      /* ----------------------------------------------------- */
    case 'P':			/* POC */
      {
				int numpocs = 0;		/* number of progression order change (POC) default 0 */
				opj_poc_t *POC = NULL;	/* POC : used in case of Progression order change */

				char *s = opj_optarg;
				POC = j2k_parameters->POC;

				while (sscanf(s, "T%d=%d,%d,%d,%d,%d,%4s", &POC[numpocs].tile,
					&POC[numpocs].resno0, &POC[numpocs].compno0,
					&POC[numpocs].layno1, &POC[numpocs].resno1,
					&POC[numpocs].compno1, POC[numpocs].progorder) == 7) {
					POC[numpocs].prg1 = give_progression(POC[numpocs].progorder);
					numpocs++;
					while (*s && *s != '/') {
						s++;
					}
					if (!*s) {
						break;
					}
					s++;
				}
				j2k_parameters->numpocs = numpocs;
			}
			break;
      /* ------------------------------------------------------ */
    case 'S':			/* SOP marker */
      j2k_parameters->csty |= 0x02;
      break;
      /* ------------------------------------------------------ */
    case 'E':			/* EPH marker */
      j2k_parameters->csty |= 0x04;
      break;
      /* ------------------------------------------------------ */
    case 'M':			/* Mode switch pas tous au point !! */
      if (sscanf(opj_optarg, "%d", &value) == 1) {
				for (i = 0; i <= 5; i++) {
					int cache = value & (1 << i);
					if (cache)
						j2k_parameters->mode |= (1 << i);
				}
      }
      break;
      /* ------------------------------------------------------ */
    case 'R':			/* ROI */
      {
				if (sscanf(opj_optarg, "OI:c=%d,U=%d", &j2k_parameters->roi_compno,
                                           &j2k_parameters->roi_shift) != 2) {
					fprintf(stderr, "ROI error !! [-ROI:c='compno',U='shift']\n");
					return 1;
				}
			}
			break;
      /* ------------------------------------------------------ */
    case 'T':			/* Tile offset */
			{
				if (sscanf(opj_optarg, "%d,%d", &j2k_parameters->cp_tx0, &j2k_parameters->cp_ty0) != 2) {
					fprintf(stderr, "-T 'tile offset' argument error !! [-T X0,Y0]");
					return 1;
				}
			}
			break;
      /* ------------------------------------------------------ */
    case 'C':			/* Add a comment */
			{
				j2k_parameters->cp_comment = (char*)malloc(strlen(opj_optarg) + 1);
				if(j2k_parameters->cp_comment) {
					strcpy(j2k_parameters->cp_comment, opj_optarg);
				}
			}
			break;
      /* ------------------------------------------------------ */
    case 'I':			/* reversible or not */
			{
				j2k_parameters->irreversible = 1;
			}
			break;
      /* ------------------------------------------------------ */
    case 'W':			/* Width and Height and Cb and Cr subsampling in case of YUV format files */
      if (sscanf
				(opj_optarg, "%d,%d,%d,%d", &mj2_parameters.w, &mj2_parameters.h, &mj2_parameters.CbCr_subsampling_dx,
				&mj2_parameters.CbCr_subsampling_dy) != 4) {
				fprintf(stderr, "-W argument error");
				return 1;
      }
      break;
      /* ------------------------------------------------------ */
    case 'F':			/* Video frame rate */
      if (sscanf(opj_optarg, "%d", &mj2_parameters.frame_rate) != 1) {
				fprintf(stderr, "-F argument error");
				return 1;
      }
      break;
      /* ------------------------------------------------------ */
	case 'D': /* Depth: the precision */
		if(sscanf(opj_optarg, "%d", &prec) != 1) prec = 0;
		break;

    default:
      return 1;
    }
  }
    
  /* Error messages */
  /* -------------- */
	if (!mj2_parameters.cod_format || !mj2_parameters.decod_format) {
    fprintf(stderr,
      "Usage: %s -i yuv-file -o mj2-file (+ options)\n",argv[0]);
    return 1;
  }
    if(prec < 1 || prec > 16)
  {
	fprintf(stderr, "Error: Depth %d must be in the range 8 .. 16\n",prec);
	return 1;	
  }
	if ((j2k_parameters->cp_disto_alloc || j2k_parameters->cp_fixed_alloc || j2k_parameters->cp_fixed_quality)
		&& (!(j2k_parameters->cp_disto_alloc ^ j2k_parameters->cp_fixed_alloc ^ j2k_parameters->cp_fixed_quality))) {
		fprintf(stderr, "Error: options -r -q and -f cannot be used together !!\n");
		return 1;
	}				/* mod fixed_quality */

	/* if no rate entered, lossless by default */
	if (j2k_parameters->tcp_numlayers == 0) {
		j2k_parameters->tcp_rates[0] = 0;	/* MOD antonin : losslessbug */
		j2k_parameters->tcp_numlayers++;
		j2k_parameters->cp_disto_alloc = 1;
	}

	if((j2k_parameters->cp_tx0 > j2k_parameters->image_offset_x0) || (j2k_parameters->cp_ty0 > j2k_parameters->image_offset_y0)) {
		fprintf(stderr,
			"Error: Tile offset dimension is unnappropriate --> TX0(%d)<=IMG_X0(%d) TYO(%d)<=IMG_Y0(%d) \n",
			j2k_parameters->cp_tx0, j2k_parameters->image_offset_x0, j2k_parameters->cp_ty0, j2k_parameters->image_offset_y0);
		return 1;
	}

	for (i = 0; i < j2k_parameters->numpocs; i++) {
		if (j2k_parameters->POC[i].prg == -1) {
			fprintf(stderr,
				"Unrecognized progression order in option -P (POC n %d) [LRCP, RLCP, RPCL, PCRL, CPRL] !!\n",
				i + 1);
		}
	}
  
  if (j2k_parameters->cp_tdx > mj2_parameters.Dim[0] || j2k_parameters->cp_tdy > mj2_parameters.Dim[1]) {
    fprintf(stderr,
      "Error: Tile offset dimension is unnappropriate --> TX0(%d)<=IMG_X0(%d) TYO(%d)<=IMG_Y0(%d) \n",
      j2k_parameters->cp_tdx, mj2_parameters.Dim[0], j2k_parameters->cp_tdy, mj2_parameters.Dim[1]);
    return 1;
  }
    
  /* to respect profile - 0 */
  /* ---------------------- */
  
  x1 = !mj2_parameters.Dim[0] ? (mj2_parameters.w - 1) * j2k_parameters->subsampling_dx 
		+ 1 : mj2_parameters.Dim[0] + (mj2_parameters.w - 1) * j2k_parameters->subsampling_dx + 1;
  y1 = !mj2_parameters.Dim[1] ? (mj2_parameters.h - 1) * j2k_parameters->subsampling_dy 
		+ 1 : mj2_parameters.Dim[1] + (mj2_parameters.h - 1) * j2k_parameters->subsampling_dy + 1;   
	mj2_parameters.numcomps = 3; /* YUV files only have 3 components */ 

	mj2_parameters.prec = prec;

	j2k_parameters->tcp_mct = 0;
    
	mj2file = fopen(mj2_parameters.outfile, "wb");
  
	if (!mj2file) {
    fprintf(stderr, "failed to open %s for writing\n", argv[2]);
    return 1;
	}
    
	/* get a MJ2 decompressor handle */
	cinfo = mj2_create_compress();
	movie = (opj_mj2_t*)cinfo->mj2_handle;
	
	/* catch events using our callbacks and give a local context */
	opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);

	/* setup encoder parameters */
	mj2_setup_encoder(movie, &mj2_parameters);   
  
	movie->tk[0].num_samples = 
	 yuv_num_frames(&movie->tk[0],mj2_parameters.infile);

	if (movie->tk[0].num_samples == 0) {
		return 1;
	}

  /* One sample per chunk*/
	movie->tk[0].chunk = (mj2_chunk_t*) 
	 malloc(movie->tk[0].num_samples * sizeof(mj2_chunk_t));     
	movie->tk[0].sample = (mj2_sample_t*) 
	 malloc(movie->tk[0].num_samples * sizeof(mj2_sample_t));
  
	if (mj2_init_stdmovie(movie)) {
    fprintf(stderr, "Error with movie initialization");
    return 1;
	}    
  
/* Writing JP, FTYP and MDAT boxes */
/* Assuming that the JP and FTYP boxes won't be longer than 300 bytes:*/
	buf = (unsigned char*) 
	 malloc (300 * sizeof(unsigned char));

	cio = opj_cio_open((opj_common_ptr)movie->cinfo, buf, 300);

	mj2_write_jp(cio);
	mj2_write_ftyp(movie, cio);

	mdat_initpos = cio_tell(cio);
	cio_skip(cio, 4);

	cio_write(cio, MJ2_MDAT, 4);	

	fwrite(buf,cio_tell(cio),1,mj2file);

	offset = cio_tell(cio);
	opj_cio_close(cio);
	free(buf);

	for(i = 0; i < movie->num_stk + movie->num_htk + movie->num_vtk; i++) 
   {
    if(movie->tk[i].track_type != 0) 
  {
	fprintf(stderr, "Unable to write sound or hint tracks\n");
  }
	else 
  {
	mj2_tk_t *tk;
	int buflen = 0;
  
	tk = &movie->tk[i];     
	tk->num_chunks = tk->num_samples;
	numframes = tk->num_samples;
	tk->depth = prec; 

	fprintf(stderr, "Video Track number %d\n", i);

	img = mj2_image_create(tk, j2k_parameters);          

	buflen = 2 * (tk->w * tk->h * 8);
	buf = (unsigned char *) malloc(buflen*sizeof(unsigned char));	

	for(sampleno = 0; sampleno < numframes; sampleno++) 
 {
	double init_time = opj_clock();
	double elapsed_time;

		if(yuvtoimage(tk, img, sampleno, j2k_parameters, 
			mj2_parameters.infile))
	   {
		fprintf(stderr, "Error with frame number %d in YUV file\n", sampleno);
		return 1;
	   }

/* setup the encoder parameters using the current image and user parameters */
	opj_setup_encoder(cinfo, j2k_parameters, img);

	cio = opj_cio_open((opj_common_ptr)movie->cinfo, buf, buflen);
								
	cio_skip(cio, 4);
	cio_write(cio, JP2_JP2C, 4);	/* JP2C*/

/* encode the image */
	bSuccess = opj_encode(cinfo, cio, img, NULL);

	if (!bSuccess) {
	opj_cio_close(cio);
	fprintf(stderr, "failed to encode image\n");
	return 1;
	}

	len = cio_tell(cio) - 8;
	cio_seek(cio, 0);
	cio_write(cio, len+8,4);
	opj_cio_close(cio);

	tk->sample[sampleno].sample_size = len+8;				
	tk->sample[sampleno].offset = offset;
	tk->chunk[sampleno].offset = offset;	/* There is one sample per chunk */
	fwrite(buf, 1, len+8, mj2file);				
	offset += len+8;				

	elapsed_time = opj_clock()-init_time;
	fprintf(stderr, "Frame number %d/%d encoded in %.2f mseconds\n", 
		sampleno + 1, numframes, elapsed_time*1000);
	total_time += elapsed_time;
 }	/* for(sampleno */

	free(buf);
	opj_image_destroy(img);
  }
   }/* for(i */
  
	fseek(mj2file, mdat_initpos, SEEK_SET);
	
	buf = (unsigned char*) malloc(4*sizeof(unsigned char));

/* Init a cio to write box length variable in a little endian way */
	cio = opj_cio_open(NULL, buf, 4);
	cio_write(cio, offset - mdat_initpos, 4);
	fwrite(buf, 4, 1, mj2file);
	fseek(mj2file,0,SEEK_END);
	free(buf);

/* Writing MOOV box */
	buf = (unsigned char*) 
	 malloc ((TEMP_BUF+numframes*20) * sizeof(unsigned char));
	cio = opj_cio_open(movie->cinfo, buf, (TEMP_BUF+numframes*20));
	mj2_write_moov(movie, cio);
	fwrite(buf,cio_tell(cio),1,mj2file);
	free(buf);

	fprintf(stdout,"Total encoding time: %.2f s for %d frames (%.1f fps)\n",
	 total_time, numframes, (float)numframes/total_time);

  /* Ending program */
  
	fclose(mj2file);
/* free remaining compression structures */
	mj2_destroy_compress(movie);
	free(cinfo);

	if(j2k_parameters->cp_comment) free(j2k_parameters->cp_comment);
	if(j2k_parameters->cp_matrice) free(j2k_parameters->cp_matrice);
	opj_cio_close(cio);

	return 0;
}
Ejemplo n.º 2
0
int main(int argc, char *argv[]) {
	opj_cinfo_t* cinfo; 
	opj_event_mgr_t event_mgr;		/* event manager */  
  unsigned int snum;
  opj_mj2_t *movie;
  mj2_sample_t *sample;
  unsigned char* frame_codestream;
  FILE *mj2file, *j2kfile;
  char j2kfilename[50];
  unsigned char *buf;
  int offset, mdat_initpos;
  opj_image_t img;
 	opj_cio_t *cio;
	mj2_cparameters_t parameters;
	
  if (argc != 3) {
    printf("Usage: %s source_location mj2_filename\n",argv[0]);
    printf("Example: %s input/input output.mj2\n",argv[0]);
    return 1;
  }
  
  mj2file = fopen(argv[2], "wb");
  
  if (!mj2file) {
    fprintf(stderr, "failed to open %s for writing\n", argv[2]);
    return 1;
  }

	/*
	configure the event callbacks (not required)
	setting of each callback is optionnal
	*/
	memset(&event_mgr, 0, sizeof(opj_event_mgr_t));
	event_mgr.error_handler = error_callback;
	event_mgr.warning_handler = warning_callback;
	event_mgr.info_handler = info_callback;

	/* get a MJ2 decompressor handle */
	cinfo = mj2_create_compress();

	/* catch events using our callbacks and give a local context */
	opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);	
	
	/* setup the decoder encoding parameters using user parameters */
	movie = (opj_mj2_t*) cinfo->mj2_handle;
	mj2_setup_encoder((opj_mj2_t*)cinfo->mj2_handle, &parameters);

  
	/* Writing JP, FTYP and MDAT boxes 
	Assuming that the JP and FTYP boxes won't be longer than 300 bytes */
	
  buf = (unsigned char*) malloc (300 * sizeof(unsigned char)); 
  cio = opj_cio_open(movie->cinfo, buf, 300);
  mj2_write_jp(cio);
  mj2_write_ftyp(movie, cio);
  mdat_initpos = cio_tell(cio);
  cio_skip(cio, 4);
  cio_write(cio,MJ2_MDAT, 4);	
  fwrite(buf,cio_tell(cio),1,mj2file);
  free(buf);
	
  // Insert each j2k codestream in a JP2C box  
  snum=0;
  offset = 0;  
  while(1)
  {
    sample = &movie->tk[0].sample[snum];
    sprintf(j2kfilename,"%s_%05d.j2k",argv[1],snum);
    j2kfile = fopen(j2kfilename, "rb");
    if (!j2kfile) {
      if (snum==0) {  // Could not open a single codestream
				fprintf(stderr, "failed to open %s for reading\n",j2kfilename);
				return 1;
      }
      else {	      // Tried to open a inexistant codestream
				fprintf(stdout,"%d frames are being added to the MJ2 file\n",snum);
				break;
      }
    }

    // Calculating offset for samples and chunks
    offset += cio_tell(cio);     
    sample->offset = offset;
    movie->tk[0].chunk[snum].offset = offset;  // There will be one sample per chunk
    
    // Calculating sample size
    fseek(j2kfile,0,SEEK_END);	
    sample->sample_size = ftell(j2kfile) + 8; // Sample size is codestream + JP2C box header
    fseek(j2kfile,0,SEEK_SET);
    
    // Reading siz marker of j2k image for the first codestream
    if (snum==0)	      
      read_siz_marker(j2kfile, &img);
    
    // Writing JP2C box header			    
    frame_codestream = (unsigned char*) malloc (sample->sample_size+8); 
		cio = opj_cio_open(movie->cinfo, frame_codestream, sample->sample_size);    
    cio_write(cio,sample->sample_size, 4);  // Sample size
    cio_write(cio,JP2_JP2C, 4);	// JP2C
    
    // Writing codestream from J2K file to MJ2 file
    fread(frame_codestream+8,sample->sample_size-8,1,j2kfile);
    fwrite(frame_codestream,sample->sample_size,1,mj2file);
    cio_skip(cio, sample->sample_size-8);
    
    // Ending loop
    fclose(j2kfile);
    snum++;
    movie->tk[0].sample = (mj2_sample_t*)
		realloc(movie->tk[0].sample, (snum+1) * sizeof(mj2_sample_t));
    movie->tk[0].chunk = (mj2_chunk_t*)
		realloc(movie->tk[0].chunk, (snum+1) * sizeof(mj2_chunk_t));
    free(frame_codestream);
  }
  
  // Writing the MDAT box length in header
  offset += cio_tell(cio);
  buf = (unsigned char*) malloc (4 * sizeof(unsigned char));
	cio = opj_cio_open(movie->cinfo, buf, 4);
  cio_write(cio,offset-mdat_initpos,4); 
  fseek(mj2file,(long)mdat_initpos,SEEK_SET);
  fwrite(buf,4,1,mj2file);
  fseek(mj2file,0,SEEK_END);
  free(buf);
	
  // Setting movie parameters
  movie->tk[0].num_samples=snum;
  movie->tk[0].num_chunks=snum;
  setparams(movie, &img);
	
  // Writing MOOV box 
	buf = (unsigned char*) malloc ((TEMP_BUF+snum*20) * sizeof(unsigned char));
	cio = opj_cio_open(movie->cinfo, buf, (TEMP_BUF+snum*20));
	mj2_write_moov(movie, cio);
  fwrite(buf,cio_tell(cio),1,mj2file);
	
  // Ending program
  fclose(mj2file);
  free(img.comps);
  opj_cio_close(cio);
  mj2_destroy_compress(movie);
	
  return 0;
}