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MJ2 module: Add two components to mj2.h: meth, enumcs ; Define or reset all components of mj2_cparameters_t before its usage ; Add argument -D prec to frames_to_mj2.c and use the precision in mj2_convert.c (solves Issue 49)

This commit is contained in:
Antonin Descampe 2011-01-23 18:33:06 +00:00
parent 066bda52c0
commit 90725df206
8 changed files with 410 additions and 199 deletions
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4
CHANGES
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@ -6,6 +6,10 @@ What's New for OpenJPEG
+ : added
January 23, 2011
! [antonin] MJ2 module:
- Add two components to mj2.h: meth, enumcs.
- Define or reset all components of mj2_cparameters_t before its usage.
- Add argument '-D prec' to frames_to_mj2.c and use the precision in mj2_convert.c (solves Issue 49).
* [antonin] move 'KK' definition from rs.h to rs.c to prevent duplicate symbol error when building jpwl with autotools.
January 18, 2011

3
mj2/extract_j2k_from_mj2.c
View File

@ -104,8 +104,9 @@ int main(int argc, char *argv[]) {
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
/* setup the decoder decoding parameters using user parameters */
memset(&parameters, 0, sizeof(mj2_dparameters_t));
movie = (opj_mj2_t*) dinfo->mj2_handle;
mj2_setup_decoder((opj_mj2_t*)dinfo->mj2_handle, &parameters);
mj2_setup_decoder(movie, &parameters);
if (mj2_read_struct(file, movie)) // Creating the movie structure
return 1;

352
mj2/frames_to_mj2.c
View File

@ -43,6 +43,10 @@ Size of memory first allocated for MOOV box
*/
#define TEMP_BUF 10000
#define ENUMCS_GRAY 16
#define ENUMCS_SRGB 17
#define ENUMCS_SYCC 18
/* -------------------------------------------------------------------------- */
/**
@ -111,60 +115,60 @@ void help_display()
fprintf
(stdout,"Required Parameters (except with -h):\n");
fprintf
(stdout,"-i : source file (-i source.yuv) \n");
(stdout,"-i : source file (-i source.yuv) \n");
fprintf
(stdout,"-o : destination file (-o dest.mj2) \n");
(stdout,"-o : destination file (-o dest.mj2) \n");
fprintf
(stdout,"Optional Parameters:\n");
fprintf(stdout,"-h : display the help information \n");
fprintf(stdout,"-r : different compression ratios for successive layers (-r 20,10,5)\n ");
fprintf(stdout," - The rate specified for each quality level is the desired \n");
fprintf(stdout," compression factor.\n");
fprintf(stdout," Example: -r 20,10,1 means quality 1: compress 20x, \n");
fprintf(stdout," quality 2: compress 10x and quality 3: compress lossless\n");
fprintf(stdout," (options -r and -q cannot be used together)\n ");
fprintf(stdout,"-h : display the help information \n");
fprintf(stdout,"-r : different compression ratios for successive layers (-r 20,10,5)\n");
fprintf(stdout," - The rate specified for each quality level is the desired \n");
fprintf(stdout," compression factor.\n");
fprintf(stdout," Example: -r 20,10,1 means quality 1: compress 20x, \n");
fprintf(stdout," quality 2: compress 10x and quality 3: compress lossless\n");
fprintf(stdout," (options -r and -q cannot be used together)\n");
fprintf(stdout,"-q : different psnr for successive layers (-q 30,40,50) \n ");
fprintf(stdout,"-q : different psnr for successive layers (-q 30,40,50) \n");
fprintf(stdout," (options -r and -q cannot be used together)\n");
fprintf(stdout," (options -r and -q cannot be used together)\n ");
fprintf(stdout,"-n : number of resolutions (-n 3) \n");
fprintf(stdout,"-b : size of code block (-b 32,32) \n");
fprintf(stdout,"-c : size of precinct (-c 128,128) \n");
fprintf(stdout,"-t : size of tile (-t 512,512) \n");
fprintf(stdout,"-n : number of resolutions (-n 3) \n");
fprintf(stdout,"-b : size of code block (-b 32,32) \n");
fprintf(stdout,"-c : size of precinct (-c 128,128) \n");
fprintf(stdout,"-t : size of tile (-t 512,512) \n");
fprintf
(stdout,"-p : progression order (-p LRCP) [LRCP, RLCP, RPCL, PCRL, CPRL] \n");
(stdout,"-p : progression order (-p LRCP) [LRCP, RLCP, RPCL, PCRL, CPRL] \n");
fprintf
(stdout,"-s : subsampling factor (-s 2,2) [-s X,Y] \n");
fprintf(stdout," Remark: subsampling bigger than 2 can produce error\n");
(stdout,"-s : subsampling factor (-s 2,2) [-s X,Y] \n");
fprintf(stdout," Remark: subsampling bigger than 2 can produce error\n");
fprintf
(stdout,"-SOP : write SOP marker before each packet \n");
(stdout,"-S : write SOP marker before each packet \n");
fprintf
(stdout,"-EPH : write EPH marker after each header packet \n");
(stdout,"-E : write EPH marker after each header packet \n");
fprintf
(stdout,"-M : mode switch (-M 3) [1=BYPASS(LAZY) 2=RESET 4=RESTART(TERMALL)\n");
(stdout,"-M : mode switch (-M 3) [1=BYPASS(LAZY) 2=RESET 4=RESTART(TERMALL)\n");
fprintf
(stdout," 8=VSC 16=ERTERM(SEGTERM) 32=SEGMARK(SEGSYM)] \n");
(stdout," 8=VSC 16=ERTERM(SEGTERM) 32=SEGMARK(SEGSYM)] \n");
fprintf
(stdout," Indicate multiple modes by adding their values. \n");
(stdout," Indicate multiple modes by adding their values. \n");
fprintf
(stdout," ex: RESTART(4) + RESET(2) + SEGMARK(32) = -M 38\n");
(stdout," Example: RESTART(4) + RESET(2) + SEGMARK(32) = -M 38\n");
fprintf
(stdout,"-ROI : c=%%d,U=%%d : quantization indices upshifted \n");
(stdout,"-R : c=%%d,U=%%d : quantization indices upshifted \n");
fprintf
(stdout," for component c=%%d [%%d = 0,1,2]\n");
(stdout," for component c=%%d [%%d = 0,1,2]\n");
fprintf
(stdout," with a value of U=%%d [0 <= %%d <= 37] (i.e. -ROI:c=0,U=25) \n");
(stdout," with a value of U=%%d [0 <= %%d <= 37] (i.e. -ROI:c=0,U=25) \n");
fprintf
(stdout,"-d : offset of the origin of the image (-d 150,300) \n");
(stdout,"-d : offset of the origin of the image (-d 150,300) \n");
fprintf
(stdout,"-T : offset of the origin of the tiles (-T 100,75) \n");
fprintf(stdout,"-I : use the irreversible DWT 9-7 (-I) \n");
fprintf(stdout,"-W : image width, height and the dx and dy subsampling \n");
fprintf(stdout," of the Cb and Cr components for YUV files \n");
fprintf(stdout," (default is '352,288,2,2' for CIF format's 352x288 and 4:2:0)\n");
fprintf(stdout,"-F : video frame rate (set to 25 by default)\n");
(stdout,"-T : offset of the origin of the tiles (-T 100,75) \n");
fprintf(stdout,"-I : use the irreversible DWT 9-7 (-I) \n");
fprintf(stdout,"-W : image width, height and the dx and dy subsampling \n");
fprintf(stdout," of the Cb and Cr components for YUV files \n");
fprintf(stdout," (default is '352,288,2,2' for CIF format's 352x288 and 4:2:0)\n");
fprintf(stdout,"-F : video frame rate (set to 25 by default)\n");
fprintf(stdout,"-D : depth, precision in bits [8 .. 16]; default:8\n");
fprintf(stdout,"-C : comment\n");
fprintf(stdout,"\n");
fprintf(stdout,"IMPORTANT:\n");
fprintf(stdout,"-----------\n");
@ -235,33 +239,37 @@ int main(int argc, char **argv)
opj_event_mgr_t event_mgr; /* event manager */
opj_cio_t *cio;
int value;
opj_mj2_t *movie;
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;
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;
bool bSuccess;
bool bSuccess;
int numframes;
int prec = 0;
double total_time = 0;
memset(&mj2_parameters, 0, sizeof(mj2_cparameters_t));
/* default value */
/* ------------- */
mj2_parameters.Dim[0] = 0;
mj2_parameters.Dim[1] = 0;
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.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;
@ -280,12 +288,9 @@ int main(int argc, char **argv)
sprintf(j2k_parameters->cp_comment,"%s%s", comment, version);
}
mj2_parameters.decod_format = 0;
mj2_parameters.cod_format = 0;
while (1) {
int c = 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:h");
"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) {
@ -602,6 +607,10 @@ int main(int argc, char **argv)
}
break;
/* ------------------------------------------------------ */
case 'D': /* Depth: the precision */
if(sscanf(optarg, "%d", &prec) != 1) prec = 0;
break;
default:
return 1;
}
@ -657,17 +666,21 @@ int main(int argc, char **argv)
+ 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; /* Because YUV files only have 3 components */
mj2_parameters.prec = 8; /* Because in YUV files, components have 8-bit depth */
mj2_parameters.numcomps = 3; /* YUV files only have 3 components */
if(prec < 1 || prec > 32) prec = 8; /* DEFAULT */
mj2_parameters.prec = prec;
j2k_parameters->tcp_mct = 0;
mj2file = fopen(mj2_parameters.outfile, "wb");
mj2file = fopen(mj2_parameters.outfile, "wb");
if (!mj2file) {
if (!mj2file) {
fprintf(stderr, "failed to open %s for writing\n", argv[2]);
return 1;
}
}
/* get a MJ2 decompressor handle */
cinfo = mj2_create_compress();
@ -679,128 +692,151 @@ int main(int argc, char **argv)
/* 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 == -1) {
movie->tk[0].num_samples =
yuv_num_frames(&movie->tk[0],mj2_parameters.infile);
if (movie->tk[0].num_samples == -1) {
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));
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)) {
if (mj2_init_stdmovie(movie)) {
fprintf(stderr, "Error with movie initialization");
return 1;
};
}
// Writing JP, FTYP and MDAT boxes
buf = (unsigned char*) malloc (300 * sizeof(unsigned char)); // Assuming that the JP and FTYP
// boxes won't be longer than 300 bytes
// 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;
mj2_write_jp(cio);
mj2_write_ftyp(movie, cio);
fprintf(stderr, "Video Track number %d\n", i + 1);
img = mj2_image_create(tk, j2k_parameters);
buflen = 2 * (tk->w * tk->h * 8);
buf = (unsigned char *) malloc(buflen*sizeof(unsigned char));
mdat_initpos = cio_tell(cio);
cio_skip(cio, 4);
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;
}
cio_write(cio, MJ2_MDAT, 4);
/* setup the encoder parameters using the current image and user parameters */
opj_setup_encoder(cinfo, j2k_parameters, img);
fwrite(buf,cio_tell(cio),1,mj2file);
cio = opj_cio_open((opj_common_ptr)movie->cinfo, buf, buflen);
cio_skip(cio, 4);
cio_write(cio, JP2_JP2C, 4); // JP2C
offset = cio_tell(cio);
opj_cio_close(cio);
free(buf);
/* 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;
}
/* free buffer data */
free(buf);
/* free image data */
opj_image_destroy(img);
}
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;
fseek(mj2file, mdat_initpos, SEEK_SET);
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));
buf = (unsigned char*) malloc(4*sizeof(unsigned char));
// Init a cio to write box length variable in a little endian way
// 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);
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));
// 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);
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);
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 */
fclose(mj2file);
/* free remaining compression structures */
mj2_destroy_compress(movie);
free(cinfo);
/* free user parameters structure */
if(j2k_parameters->cp_comment) free(j2k_parameters->cp_comment);
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;
return 0;
}

49
mj2/mj2.c
View File

@ -90,7 +90,8 @@ int mj2_read_boxhdr(mj2_box_t * box, opj_cio_t *cio)
int mj2_init_stdmovie(opj_mj2_t * movie)
{
int i;
mj2_tk_t *tk0;
int i, w, h, prec;
unsigned int j;
time_t ltime;
@ -117,17 +118,24 @@ int mj2_init_stdmovie(opj_mj2_t * movie)
movie->trans_matrix[7] = 0;
movie->trans_matrix[8] = 0x40000000;
movie->next_tk_id = 1;
for (i = 0; i < movie->num_htk + movie->num_stk + movie->num_vtk; i++) {
tk0 = &movie->tk[0];
w = tk0->w; h = tk0->h; prec = tk0->depth;
for (i = 0; i < movie->num_htk + movie->num_stk + movie->num_vtk; i++)
{
mj2_tk_t *tk = &movie->tk[i];
movie->next_tk_id++;
tk->jp2_struct.comps = NULL;
tk->jp2_struct.cl = NULL;
if (tk->track_type == 0) {
if (tk->num_samples == 0)
if (tk->track_type == 0) /* no sound or hint track */
{
if (tk->num_samples == 0)
return 1;
tk->w = w; tk->h = h; tk->depth = prec;
tk->Dim[0] = 0;
tk->Dim[1] = 0;
@ -138,22 +146,24 @@ int mj2_init_stdmovie(opj_mj2_t * movie)
tk->same_sample_size = 0;
tk->num_samplestochunk = 1; /* One sample per chunk */
tk->num_samplestochunk = 1; /* One sample per chunk */
tk->sampletochunk = (mj2_sampletochunk_t*) opj_malloc(tk->num_samplestochunk * sizeof(mj2_sampletochunk_t));
tk->sampletochunk[0].first_chunk = 1;
tk->sampletochunk[0].samples_per_chunk = 1;
tk->sampletochunk[0].sample_descr_idx = 1;
if (tk->sample_rate == 0) {
opj_event_msg(tk->cinfo, EVT_ERROR,
"Error while initializing MJ2 movie: Sample rate of track %d must be different from zero\n",
tk->track_ID);
return 1;
}
if (tk->sample_rate == 0)
{
opj_event_msg(tk->cinfo, EVT_ERROR,
"Error while initializing MJ2 movie: Sample rate of track"
" %d must be different from zero\n", tk->track_ID);
return 1;
}
for (j = 0; j < tk->num_samples; j++) {
tk->sample[j].sample_delta = tk->timescale / tk->sample_rate;
}
for (j = 0; j < tk->num_samples; j++)
{
tk->sample[j].sample_delta = tk->timescale / tk->sample_rate;
}
tk->num_tts = 1;
tk->tts = (mj2_tts_t*) opj_malloc(tk->num_tts * sizeof(mj2_tts_t));
@ -2842,9 +2852,10 @@ void mj2_setup_encoder(opj_mj2_t *movie, mj2_cparameters_t *parameters) {
movie->tk[0].name_size = 0;
movie->tk[0].chunk = (mj2_chunk_t*) opj_malloc(sizeof(mj2_chunk_t));
movie->tk[0].sample = (mj2_sample_t*) opj_malloc(sizeof(mj2_sample_t));
movie->tk[0].depth = parameters->prec;
jp2_struct = &movie->tk[0].jp2_struct;
jp2_struct->numcomps = 3; // NC
jp2_struct->numcomps = parameters->numcomps; // NC
jp2_struct->comps = (opj_jp2_comps_t*) opj_malloc(jp2_struct->numcomps * sizeof(opj_jp2_comps_t));
jp2_struct->precedence = 0; /* PRECEDENCE*/
jp2_struct->approx = 0; /* APPROX*/
@ -2859,8 +2870,8 @@ void mj2_setup_encoder(opj_mj2_t *movie, mj2_cparameters_t *parameters) {
jp2_struct->w = parameters->w;
jp2_struct->h = parameters->h;
jp2_struct->bpc = 7;
jp2_struct->meth = 1;
jp2_struct->enumcs = 18; // YUV
jp2_struct->meth = parameters->meth;
jp2_struct->enumcs = parameters->enumcs;
}
}

2
mj2/mj2.h
View File

@ -295,6 +295,8 @@ typedef struct mj2_cparameters {
int numcomps;
/* In YUV files, precision always considered as 8 */
int prec;
unsigned int meth;
unsigned int enumcs;
} mj2_cparameters_t;

39
mj2/mj2_convert.c
View File

@ -39,7 +39,7 @@
int yuv_num_frames(mj2_tk_t * tk, char *infile)
{
int numimages, frame_size;
int numimages, frame_size, prec_size;
long end_of_f;
FILE *f;
@ -48,8 +48,10 @@ int yuv_num_frames(mj2_tk_t * tk, char *infile)
fprintf(stderr, "failed to open %s for reading\n",infile);
return -1;
}
prec_size = (tk->depth + 7)/8;/* bytes of precision */
frame_size = (int) (tk->w * tk->h * (1.0 + (double) 2 / (double) (tk->CbCr_subsampling_dx * tk->CbCr_subsampling_dy))); /* Calculate frame size */
frame_size *= prec_size;
fseek(f, 0, SEEK_END);
end_of_f = ftell(f); /* Calculate file size */
@ -86,8 +88,8 @@ opj_image_t *mj2_image_create(mj2_tk_t * tk, opj_cparameters_t *parameters)
/* initialize image components */
memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
for(i = 0; i < numcomps; i++) {
cmptparm[i].prec = 8;
cmptparm[i].bpp = 8;
cmptparm[i].prec = tk->depth;
cmptparm[i].bpp = tk->depth;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = i ? subsampling_dx * tk->CbCr_subsampling_dx : subsampling_dx;
cmptparm[i].dy = i ? subsampling_dy * tk->CbCr_subsampling_dy : subsampling_dy;
@ -102,7 +104,7 @@ opj_image_t *mj2_image_create(mj2_tk_t * tk, opj_cparameters_t *parameters)
char yuvtoimage(mj2_tk_t * tk, opj_image_t * img, int frame_num, opj_cparameters_t *parameters, char* infile)
{
int i, compno;
int offset;
int offset, size, max, prec_size;
long end_of_f, position;
int numcomps = 3;
int subsampling_dx = parameters->subsampling_dx;
@ -114,9 +116,12 @@ char yuvtoimage(mj2_tk_t * tk, opj_image_t * img, int frame_num, opj_cparameters
fprintf(stderr, "failed to open %s for readings\n",parameters->infile);
return 1;
}
prec_size = (tk->depth + 7)/8;/* bytes of precision */
offset = (int) ((double) (frame_num * tk->w * tk->h) * (1.0 +
1.0 * (double) 2 / (double) (tk->CbCr_subsampling_dx * tk->CbCr_subsampling_dy)));
offset *= prec_size;
fseek(yuvfile, 0, SEEK_END);
end_of_f = ftell(yuvfile);
fseek(yuvfile, sizeof(unsigned char) * offset, SEEK_SET);
@ -134,16 +139,22 @@ char yuvtoimage(mj2_tk_t * tk, opj_image_t * img, int frame_num, opj_cparameters
(tk->w - 1) * subsampling_dx + 1;
img->y1 = !tk->Dim[1] ? (tk->h - 1) * subsampling_dy + 1 : tk->Dim[1] +
(tk->h - 1) * subsampling_dy + 1;
size = tk->w * tk->h * prec_size;
for(compno = 0; compno < numcomps; compno++) {
for (i = 0; i < (tk->w * tk->h / (img->comps[compno].dx * img->comps[compno].dy))
&& !feof(yuvfile); i++) {
if (!fread(&img->comps[compno].data[i], 1, 1, yuvfile)) {
fprintf(stderr, "Error reading %s file !!\n", infile);
return 1;
}
}
}
for(compno = 0; compno < numcomps; compno++)
{
max = size/(img->comps[compno].dx * img->comps[compno].dy);
for (i = 0; i < max && !feof(yuvfile); i++)
{
if (!fread(&img->comps[compno].data[i], 1, 1, yuvfile))
{
fprintf(stderr, "Error reading %s file !!\n", infile);
return 1;
}
}
}
fclose(yuvfile);
return 0;

3
mj2/mj2_to_frames.c
View File

@ -124,11 +124,12 @@ int main(int argc, char *argv[]) {
/* catch events using our callbacks and give a local context */
opj_set_event_mgr((opj_common_ptr)dinfo, &event_mgr, stderr);
memset(&mj2_parameters, 0, sizeof(mj2_dparameters_t));
/* set J2K decoding parameters to default values */
opj_set_default_decoder_parameters(&mj2_parameters.j2k_parameters);
/* setup the decoder decoding parameters using user parameters */
mj2_setup_decoder((opj_mj2_t*)dinfo->mj2_handle, &mj2_parameters);
mj2_setup_decoder(movie, &mj2_parameters);
if (mj2_read_struct(file, movie)) // Creating the movie structure
return 1;

157
mj2/wrap_j2k_in_mj2.c
View File

@ -45,9 +45,143 @@ Size of memory first allocated for MOOV box
*/
#define TEMP_BUF 10000
#define ENUMCS_GRAY 16
#define ENUMCS_SRGB 17
#define ENUMCS_SYCC 18
#define J2K_CODESTREAM_MAGIC "\xff\x4f\xff\x51"
/* -------------------------------------------------------------------------- */
static int test_image(const char *fname, mj2_cparameters_t *cp)
{
FILE *reader;
opj_image_t *image;
unsigned char *src;
opj_dinfo_t *dinfo;
opj_cio_t *cio;
opj_dparameters_t dparameters;
int success;
long src_len;
success = 0;
if((reader = fopen(fname, "rb")) == NULL) return success;
fseek(reader, 0, SEEK_END);
src_len = ftell(reader);
fseek(reader, 0, SEEK_SET);
src = (unsigned char*) malloc(src_len);
fread(src, 1, src_len, reader);
fclose(reader);
if(memcmp(src, J2K_CODESTREAM_MAGIC, 4) != 0)
{
free(src); return success;
}
memset(&dparameters, 0, sizeof(opj_dparameters_t));
opj_set_default_decoder_parameters(&dparameters);
dinfo = opj_create_decompress(CODEC_J2K);
opj_setup_decoder(dinfo, &dparameters);
cio = opj_cio_open((opj_common_ptr)dinfo, src, src_len);
image = opj_decode(dinfo, cio);
free(src); cio->buffer = NULL;
opj_cio_close(cio);
if(image == NULL) goto fin;
cp->numcomps = image->numcomps;
cp->w = image->comps[0].w;
cp->h = image->comps[0].h;
cp->prec = image->comps[0].prec;
if(image->numcomps > 2 )
{
if((image->comps[0].dx == 1)
&& (image->comps[1].dx == 2)
&& (image->comps[2].dx == 2)
&& (image->comps[0].dy == 1)
&& (image->comps[1].dy == 2)
&& (image->comps[2].dy == 2))// horizontal and vertical
{
// Y420
cp->enumcs = ENUMCS_SYCC;
cp->CbCr_subsampling_dx = 2;
cp->CbCr_subsampling_dy = 2;
}
else
if((image->comps[0].dx == 1)
&& (image->comps[1].dx == 2)
&& (image->comps[2].dx == 2)
&& (image->comps[0].dy == 1)
&& (image->comps[1].dy == 1)
&& (image->comps[2].dy == 1))// horizontal only
{
// Y422
cp->enumcs = ENUMCS_SYCC;
cp->CbCr_subsampling_dx = 2;
cp->CbCr_subsampling_dy = 1;
}
else
if((image->comps[0].dx == 1)
&& (image->comps[1].dx == 1)
&& (image->comps[2].dx == 1)
&& (image->comps[0].dy == 1)
&& (image->comps[1].dy == 1)
&& (image->comps[2].dy == 1))
{
// Y444 or RGB
if(image->color_space == CLRSPC_SRGB)
{
cp->enumcs = ENUMCS_SRGB;
// cp->CbCr_subsampling_dx = 0;
// cp->CbCr_subsampling_dy = 0;
}
else
{
cp->enumcs = ENUMCS_SYCC;
cp->CbCr_subsampling_dx = 1;
cp->CbCr_subsampling_dy = 1;
}
}
else
{
goto fin;
}
}
else
{
cp->enumcs = ENUMCS_GRAY;
// cp->CbCr_subsampling_dx = 0;
// cp->CbCr_subsampling_dy = 0;
}
if(image->icc_profile_buf)
{
cp->meth = 2;
free(image->icc_profile_buf); image->icc_profile_buf = NULL;
}
else cp->meth = 1;
success = 1;
fin:
if(dinfo)
opj_destroy_decompress(dinfo);
if(image)
opj_image_destroy(image);
return success;
}
/**
sample error callback expecting a FILE* client object
*/
@ -125,7 +259,6 @@ static void read_siz_marker(FILE *file, opj_image_t *image)
static void setparams(opj_mj2_t *movie, opj_image_t *image) {
int i, depth_0, depth, sign;
movie->tk[0].sample_rate = 25;
movie->tk[0].w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx);
movie->tk[0].h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy);
mj2_init_stdmovie(movie);
@ -233,7 +366,7 @@ int main(int argc, char *argv[]) {
mj2_sample_t *sample;
unsigned char* frame_codestream;
FILE *mj2file, *j2kfile;
char j2kfilename[50];
char *j2kfilename;
unsigned char *buf;
int offset, mdat_initpos;
opj_image_t img;
@ -252,7 +385,7 @@ int main(int argc, char *argv[]) {
fprintf(stderr, "failed to open %s for writing\n", argv[2]);
return 1;
}
memset(&img, 0, sizeof(opj_image_t));
/*
configure the event callbacks (not required)
setting of each callback is optionnal
@ -269,8 +402,17 @@ int main(int argc, char *argv[]) {
opj_set_event_mgr((opj_common_ptr)cinfo, &event_mgr, stderr);
/* setup the decoder encoding parameters using user parameters */
memset(&parameters, 0, sizeof(mj2_cparameters_t));
movie = (opj_mj2_t*) cinfo->mj2_handle;
mj2_setup_encoder((opj_mj2_t*)cinfo->mj2_handle, &parameters);
j2kfilename = (char*)malloc(strlen(argv[1]) + 12);/* max. '%6d' */
sprintf(j2kfilename, "%s_00001.j2k",argv[1]);
if(test_image(j2kfilename, &parameters) == 0) goto fin;
parameters.frame_rate = 25; /* DEFAULT */
mj2_setup_encoder(movie, &parameters);
/* Writing JP, FTYP and MDAT boxes
@ -362,10 +504,13 @@ int main(int argc, char *argv[]) {
fwrite(buf,cio_tell(cio),1,mj2file);
// Ending program
fclose(mj2file);
free(img.comps);
opj_cio_close(cio);
fin:
fclose(mj2file);
mj2_destroy_compress(movie);
free(j2kfilename);
return 0;
}