/*
* Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2014, Professor Benoit Macq
* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "opj_includes.h"
#include "mj2_convert.h"
/* ----------------------- */
/* */
/* */
/* Count the number of frames */
/* in a YUV file */
/* */
/* ----------------------- */
unsigned int OPJ_CALLCONV yuv_num_frames(mj2_tk_t * tk, char *infile)
{
unsigned int prec_size;
long end_of_f, frame_size;
FILE *f;
f = fopen(infile, "rb");
if (!f) {
fprintf(stderr, "failed to open %s for reading\n", infile);
return 0;
}
prec_size = (tk->depth + 7) / 8; /* bytes of precision */
frame_size = (long)(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 */
if (end_of_f < frame_size) {
fprintf(stderr,
"YUV does not contains any frame of %d x %d size\n", tk->w,
tk->h);
return 0;
}
fclose(f);
return (unsigned int)(end_of_f / frame_size);
}
/* ----------------------- */
/* */
/* */
/* YUV to IMAGE */
/* */
/* ----------------------- */
opj_image_t * OPJ_CALLCONV mj2_image_create(mj2_tk_t * tk,
opj_cparameters_t *parameters)
{
opj_image_cmptparm_t cmptparm[3];
opj_image_t * img;
int i;
int numcomps = 3;
int subsampling_dx = parameters->subsampling_dx;
int subsampling_dy = parameters->subsampling_dy;
/* initialize image components */
memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
for (i = 0; i < numcomps; i++) {
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;
cmptparm[i].w = tk->w;
cmptparm[i].h = tk->h;
}
/* create the image */
img = opj_image_create(numcomps, cmptparm, CLRSPC_SRGB);
return img;
}
char OPJ_CALLCONV yuvtoimage(mj2_tk_t * tk, opj_image_t * img, int frame_num,
opj_cparameters_t *parameters, char* infile)
{
int i, compno;
int offset, size, max, prec_bytes, is_16, v;
long end_of_f, position;
int numcomps = 3;
int subsampling_dx = parameters->subsampling_dx;
int subsampling_dy = parameters->subsampling_dy;
FILE *yuvfile;
int *data;
unsigned char uc;
yuvfile = fopen(infile, "rb");
if (!yuvfile) {
fprintf(stderr, "failed to open %s for readings\n", parameters->infile);
return 1;
}
is_16 = (tk->depth > 8);
prec_bytes = (is_16 ? 2 : 1);
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_bytes;
fseek(yuvfile, 0, SEEK_END);
end_of_f = ftell(yuvfile);
fseek(yuvfile, sizeof(unsigned char) * offset, SEEK_SET);
position = ftell(yuvfile);
if (position >= end_of_f) {
fprintf(stderr, "Cannot reach frame number %d in yuv file !!\n",
frame_num);
fclose(yuvfile);
return 1;
}
img->x0 = tk->Dim[0];
img->y0 = tk->Dim[1];
img->x1 = !tk->Dim[0] ? (tk->w - 1) * subsampling_dx + 1 : tk->Dim[0] +
(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_bytes;
for (compno = 0; compno < numcomps; compno++) {
max = size / (img->comps[compno].dx * img->comps[compno].dy);
data = img->comps[compno].data;
for (i = 0; i < max && !feof(yuvfile); i++) {
v = 0;
fread(&uc, 1, 1, yuvfile);
v = uc;
if (is_16) {
fread(&uc, 1, 1, yuvfile);
v |= (uc << 8);
}
*data++ = v;
}
}
fclose(yuvfile);
return 0;
}
/* ----------------------- */
/* */
/* */
/* IMAGE to YUV */
/* */
/* ----------------------- */
opj_bool OPJ_CALLCONV imagetoyuv(opj_image_t * img, char *outfile)
{
FILE *f;
int *data;
int i, v, is_16, prec_bytes;
unsigned char buf[2];
if (img->numcomps == 3) {
if (img->comps[0].dx != img->comps[1].dx / 2
|| img->comps[1].dx != img->comps[2].dx) {
fprintf(stderr,
"Error with the input image components size: cannot create yuv file)\n");
return OPJ_FALSE;
}
} else if (!(img->numcomps == 1)) {
fprintf(stderr,
"Error with the number of image components(must be one or three)\n");
return OPJ_FALSE;
}
f = fopen(outfile, "a+b");
if (!f) {
fprintf(stderr, "failed to open %s for writing\n", outfile);
return OPJ_FALSE;
}
is_16 = (img->comps[0].prec > 8);
prec_bytes = (is_16 ? 2 : 1);
data = img->comps[0].data;
for (i = 0; i < (img->comps[0].w * img->comps[0].h); i++) {
v = *data++;
buf[0] = (unsigned char)v;
if (is_16) {
buf[1] = (unsigned char)(v >> 8);
}
fwrite(buf, 1, prec_bytes, f);
}
if (img->numcomps == 3) {
data = img->comps[1].data;
for (i = 0; i < (img->comps[1].w * img->comps[1].h); i++) {
v = *data++;
buf[0] = (unsigned char)v;
if (is_16) {
buf[1] = (unsigned char)(v >> 8);
}
fwrite(buf, 1, prec_bytes, f);
}
data = img->comps[2].data;
for (i = 0; i < (img->comps[2].w * img->comps[2].h); i++) {
v = *data++;
buf[0] = (unsigned char)v;
if (is_16) {
buf[1] = (unsigned char)(v >> 8);
}
fwrite(buf, 1, prec_bytes, f);
}
} else if (img->numcomps == 1) {
/* fake CbCr values */
if (is_16) {
buf[0] = 255;
if (img->comps[0].prec == 10) {
buf[1] = 1;
} else if (img->comps[0].prec == 12) {
buf[1] = 3;
} else {
buf[1] = 125;
}
} else {
buf[0] = 125;
}
for (i = 0; i < (img->comps[0].w * img->comps[0].h * 0.25); i++) {
fwrite(buf, 1, prec_bytes, f);
}
for (i = 0; i < (img->comps[0].w * img->comps[0].h * 0.25); i++) {
fwrite(buf, 1, prec_bytes, f);
}
}
fclose(f);
return OPJ_TRUE;
}
/* ----------------------- */
/* */
/* */
/* IMAGE to BMP */
/* */
/* ----------------------- */
int OPJ_CALLCONV imagetobmp(opj_image_t * img, char *outfile)
{
int w, wr, h, hr, i, pad;
FILE *f;
if (img->numcomps == 3 && img->comps[0].dx == img->comps[1].dx
&& img->comps[1].dx == img->comps[2].dx
&& img->comps[0].dy == img->comps[1].dy
&& img->comps[1].dy == img->comps[2].dy
&& img->comps[0].prec == img->comps[1].prec
&& img->comps[1].prec == img->comps[2].prec) {
/* -->> -->> -->> -->>
24 bits color
<<-- <<-- <<-- <<-- */
f = fopen(outfile, "wb");
if (!f) {
fprintf(stderr, "failed to open %s for writing\n", outfile);
return 1;
}
w = img->comps[0].w;
wr = int_ceildivpow2(img->comps[0].w, img->comps[0].factor);
h = img->comps[0].h;
hr = int_ceildivpow2(img->comps[0].h, img->comps[0].factor);
fprintf(f, "BM");
/* FILE HEADER */
/* ------------- */
fprintf(f, "%c%c%c%c",
(unsigned char)(hr * wr * 3 + 3 * hr * (wr % 2) +
54) & 0xff,
(unsigned char)((hr * wr * 3 + 3 * hr * (wr % 2) + 54)
>> 8) & 0xff,
(unsigned char)((hr * wr * 3 + 3 * hr * (wr % 2) + 54)
>> 16) & 0xff,
(unsigned char)((hr * wr * 3 + 3 * hr * (wr % 2) + 54)
>> 24) & 0xff);
fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff,
((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(f, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff,
((54) >> 16) & 0xff, ((54) >> 24) & 0xff);
/* INFO HEADER */
/* ------------- */
fprintf(f, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff,
((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
fprintf(f, "%c%c%c%c", (unsigned char)((wr) & 0xff),
(unsigned char)((wr) >> 8) & 0xff,
(unsigned char)((wr) >> 16) & 0xff,
(unsigned char)((wr) >> 24) & 0xff);
fprintf(f, "%c%c%c%c", (unsigned char)((hr) & 0xff),
(unsigned char)((hr) >> 8) & 0xff,
(unsigned char)((hr) >> 16) & 0xff,
(unsigned char)((hr) >> 24) & 0xff);
fprintf(f, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
fprintf(f, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);
fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff,
((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(f, "%c%c%c%c",
(unsigned char)(3 * hr * wr +
3 * hr * (wr % 2)) & 0xff,
(unsigned char)((hr * wr * 3 + 3 * hr * (wr % 2)) >>
8) & 0xff,
(unsigned char)((hr * wr * 3 + 3 * hr * (wr % 2)) >>
16) & 0xff,
(unsigned char)((hr * wr * 3 + 3 * hr * (wr % 2)) >>
24) & 0xff);
fprintf(f, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff,
((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(f, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff,
((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff,
((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(f, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff,
((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
for (i = 0; i < wr * hr; i++) {
unsigned char R, G, B;
/* a modifier */
/* R = img->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];*/
R = img->comps[0].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
/* G = img->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];*/
G = img->comps[1].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
/* B = img->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];*/
B = img->comps[2].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
fprintf(f, "%c%c%c", B, G, R);
if ((i + 1) % wr == 0) {
for (pad = (3 * wr) % 4 ? 4 - (3 * wr) % 4 : 0; pad > 0; pad--) { /* ADD */
fprintf(f, "%c", 0);
}
}
}
fclose(f);
}
return 0;
}