// Allocate a uint8_t frame
int chromalloc(uint8_t *m[3], y4m_stream_info_t *sinfo)
{
int fs,cfs;
fs = y4m_si_get_plane_length(sinfo,0);
cfs = y4m_si_get_plane_length(sinfo,1);
// I'm gonna cheat and use this as an initialisation function.
sic.h = y4m_si_get_plane_height(sinfo,0);
sic.w = y4m_si_get_plane_width(sinfo,0);
sic.ch = y4m_si_get_plane_height(sinfo,1);
sic.cw = y4m_si_get_plane_width(sinfo,1);
m[0] = (uint8_t *)malloc( fs );
m[1] = (uint8_t *)malloc( cfs);
m[2] = (uint8_t *)malloc( cfs);
if( !m[0] || !m[1] || !m[2]) {
return -1;
} else {
return 0;
}
}
//Copy a uint8_t frame
void chromacpy(uint8_t *m[3],uint8_t *n[3],y4m_stream_info_t *sinfo)
{
int fs,cfs;
fs = y4m_si_get_plane_length(sinfo,0);
cfs = y4m_si_get_plane_length(sinfo,1);
memcpy (m[0],n[0],fs);
memcpy (m[1],n[1],cfs);
memcpy (m[2],n[2],cfs);
}
// set a solid colour for a uint8_t frame
void chromaset(uint8_t *m[3], y4m_stream_info_t *sinfo, int y, int u, int v )
{
int fs,cfs;
fs = y4m_si_get_plane_length(sinfo,0);
cfs = y4m_si_get_plane_length(sinfo,1);
memset (m[0],y,fs);
memset (m[1],u,cfs);
memset (m[2],v,cfs);
}
void chromalloc(uint8_t *m[3],y4m_stream_info_t *sinfo)
{
int fs,cfs;
fs = y4m_si_get_plane_length(sinfo,0);
cfs = y4m_si_get_plane_length(sinfo,1);
m[0] = (uint8_t *)malloc( fs );
m[1] = (uint8_t *)malloc( cfs);
m[2] = (uint8_t *)malloc( cfs);
}
int chromalloc(uint8_t *m[3],y4m_stream_info_t *sinfo)
{
int fs,cfs;
fs = y4m_si_get_plane_length(sinfo,0);
cfs = y4m_si_get_plane_length(sinfo,1);
m[0] = (uint8_t *)malloc( fs );
m[1] = (uint8_t *)malloc( cfs);
m[2] = (uint8_t *)malloc( cfs);
if( !m[0] || !m[1] || !m[2]) {
return -1;
} else {
return 0;
}
}
int y4m_si_get_framelength(const y4m_stream_info_t *si)
{
int total = 0;
int planes = y4m_si_get_plane_count(si);
int p;
for (p = 0; p < planes; p++) {
int plen = y4m_si_get_plane_length(si, p);
if (plen == Y4M_UNKNOWN) return Y4M_UNKNOWN;
total += plen;
}
return total;
}
int y4m_js_decode_frame(y4m_cb_reader_t *r, y4m_stream_info_t *si, y4m_frame_info_t *fi, uint8_t *rgba)
{
int i, j;
uint8_t *ycbcr[3];
int32_t plane_length[3];
int32_t width;
int32_t height;
int32_t ret_value;
if(NULL == r || NULL == si || NULL == fi || NULL == rgba) {
return Y4M_UNKNOWN;
}
if(3 != y4m_si_get_plane_count(si)) {
return Y4M_UNKNOWN;
}
width = y4m_si_get_plane_width(si, 0);
height = y4m_si_get_plane_height(si, 0);
for(i = 0; i < 3; ++i) {
plane_length[i] = y4m_si_get_plane_length(si, i);
if(NULL == (ycbcr[i] = malloc(width * height))) {
return Y4M_UNKNOWN;
}
}
ret_value = y4m_read_frame_cb(r, si, fi, ycbcr);
if(Y4M_OK != ret_value) {
return ret_value;
}
chroma_supersample(Y4M_CHROMA_420JPEG, ycbcr, width, height);
convert_YCbCr_to_RGB(ycbcr, width * height);
for(i = 0; i < width * height; ++i) {
for(j = 0; j < 3; ++j) {
rgba[i * 4 + j] = ycbcr[j][i];
}
}
return Y4M_OK;
}
int
main(int argc, char **argv)
{
int i, fdin, ss_v, ss_h, chroma_ss, textout;
int do_vectorscope;
int pwidth, pheight; /* Needed for the vectorscope */
int plane0_l, plane1_l, plane2_l;
u_char *yuv[3], *cp;
#ifdef HAVE_SDLgfx
int j;
int temp_x, temp_y;
u_char *cpx, *cpy;
#endif
y4m_stream_info_t istream;
y4m_frame_info_t iframe;
do_vectorscope = 0;
scalepercent = 0;
#ifdef HAVE_SDLgfx
textout = 0;
#else
textout = 1;
#endif
while ((i = getopt(argc, argv, "tps:")) != EOF)
{
switch (i)
{
case 't':
textout = 1;
break;
case 'p':
scalepercent = 1;
break;
case 's':
do_vectorscope = atoi(optarg);
break;
default:
usage();
}
}
#ifdef HAVE_SDLgfx
if ( (do_vectorscope < 0) || (do_vectorscope >16) )
usage();
/* Initialize SDL */
desired_bpp = 8;
video_flags = 0;
video_flags |= SDL_DOUBLEBUF;
number_of_frames = 1;
memset(fy_stats, '\0', sizeof (fy_stats));
memset(ly_stats, '\0', sizeof (ly_stats));
if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
mjpeg_error_exit1("Couldn't initialize SDL:%s",SDL_GetError());
atexit(SDL_Quit); /* Clean up on exit */
/* Initialize the display */
if (do_vectorscope == 0)
screen = SDL_SetVideoMode(width,heigth,desired_bpp,video_flags);
else
screen=SDL_SetVideoMode(width_v,heigth,desired_bpp,video_flags);
if (screen == NULL)
mjpeg_error_exit1("Couldn't set %dx%dx%d video mode: %s",
width, heigth, desired_bpp, SDL_GetError());
SDL_WM_SetCaption("y4mhistogram", "y4mhistogram");
y4m_init_area(screen); /* Here we draw the basic layout */
#endif /* HAVE_SDLgfx */
fdin = fileno(stdin);
y4m_accept_extensions(1);
y4m_init_stream_info(&istream);
y4m_init_frame_info(&iframe);
if (y4m_read_stream_header(fdin, &istream) != Y4M_OK)
mjpeg_error_exit1("stream header error");
if (y4m_si_get_plane_count(&istream) != 3)
mjpeg_error_exit1("Only 3 plane formats supported");
pwidth = y4m_si_get_width(&istream);
pheight = y4m_si_get_height(&istream);
chroma_ss = y4m_si_get_chroma(&istream);
ss_h = y4m_chroma_ss_x_ratio(chroma_ss).d;
ss_v = y4m_chroma_ss_y_ratio(chroma_ss).d;
plane0_l = y4m_si_get_plane_length(&istream, 0);
plane1_l = y4m_si_get_plane_length(&istream, 1);
plane2_l = y4m_si_get_plane_length(&istream, 2);
yuv[0] = malloc(plane0_l);
if (yuv[0] == NULL)
mjpeg_error_exit1("malloc(%d) plane 0", plane0_l);
yuv[1] = malloc(plane1_l);
if (yuv[1] == NULL)
mjpeg_error_exit1(" malloc(%d) plane 1", plane1_l);
yuv[2] = malloc(plane2_l);
if (yuv[2] == NULL)
mjpeg_error_exit1(" malloc(%d) plane 2\n", plane2_l);
while (y4m_read_frame(fdin,&istream,&iframe,yuv) == Y4M_OK)
{
for (i = 0, cp = yuv[0]; i < plane0_l; i++, cp++)
y_stats[*cp]++; /* Y' */
for (i = 0, cp = yuv[1]; i < plane1_l; i++, cp++)
u_stats[*cp]++; /* U */
for (i = 0, cp = yuv[2]; i < plane2_l; i++, cp++)
v_stats[*cp]++; /* V */
#ifdef HAVE_SDLgfx
if (do_vectorscope >= 1 )
{
for (i=0; i<260; i++) /* Resetting the vectorfield */
for (j=0;j<260;j++)
vectorfield[i][j]=0;
cpx = yuv[1];
cpy = yuv[2];
for (i=0; i < (pheight/ss_h); i++)
{
for (j = 0; j < (pwidth/ss_v); j++)
{
cpx++;
cpy++;
/* Have no idea why I have to multiply it with that values
But than the vectorsscope works correct. If someone has
a explantion or better fix tell me. Bernhard */
temp_x = round( 128+ ((*cpx-128) * 0.7857) );
temp_y = round( 128+ ((*cpy-128) * 1.1143) );
vectorfield[temp_x][temp_y*-1]=1;
}
/* Here we got to the n'th next line if needed */
i = i + (do_vectorscope-1);
cpy = cpy + (pwidth/ss_v) * (do_vectorscope-1);
cpx = cpx + (pwidth/ss_v) * (do_vectorscope-1);
}
}
make_stat(); /* showing the sats */
SDL_UpdateRect(screen,0,0,0,0); /* updating all */
/* Events for SDL */
HandleEvent();
#endif
}
y4m_fini_frame_info(&iframe);
y4m_fini_stream_info(&istream);
if (textout)
{
for (i = 0; i < 255; i++)
printf("Y %d %lld\n", i, y_stats[i]);
for (i = 0; i < 255; i++)
printf("U %d %lld\n", i, u_stats[i]);
for (i = 0; i < 255; i++)
printf("V %d %lld\n", i, v_stats[i]);
}
exit(0);
}
int
main(int argc, char **argv)
{
int fdin, fdout, err, c, i, verbose = 1;
y4m_stream_info_t istream, ostream;
y4m_frame_info_t iframe;
fdin = fileno(stdin);
fdout = fileno(stdout);
y4m_accept_extensions(1);
y4m_init_stream_info(&istream);
y4m_init_frame_info(&iframe);
while ((c = getopt(argc, argv, "L:C:hv:N")) != EOF)
{
switch (c)
{
case 'N':
lowuv = lowy = 0;
lowuv = highy = 255;
break;
case 'L':
i = sscanf(optarg, "%lf,%lf,%d", &y_radius,
&y_amount, &y_threshold);
if (i != 3)
{
mjpeg_error("-L r,a,t");
usage(argv[0]);
}
break;
case 'C':
i = sscanf(optarg, "%lf,%lf,%d", &uv_radius,
&uv_amount, &uv_threshold);
if (i != 3)
{
mjpeg_error("-C r,a,t");
usage(argv[0]);
}
break;
case 'v':
verbose = atoi(optarg);
if (verbose < 0 || verbose > 2)
mjpeg_error_exit1("-v 0|1|2");
break;
case 'h':
default:
usage(argv[0]);
break;
}
}
if (isatty(fdout))
mjpeg_error_exit1("stdout must not be a terminal");
mjpeg_default_handler_verbosity(verbose);
err = y4m_read_stream_header(fdin, &istream);
if (err != Y4M_OK)
mjpeg_error_exit1("Couldn't read input stream header");
switch (y4m_si_get_interlace(&istream))
{
case Y4M_ILACE_NONE:
interlaced = 0;
break;
case Y4M_ILACE_BOTTOM_FIRST:
case Y4M_ILACE_TOP_FIRST:
interlaced = 1;
break;
default:
mjpeg_error_exit1("Unsupported/unknown interlacing");
}
if (y4m_si_get_plane_count(&istream) != 3)
mjpeg_error_exit1("Only 3 plane formats supported");
yheight = y4m_si_get_plane_height(&istream, 0);
uvheight = y4m_si_get_plane_height(&istream, 1);
ywidth = y4m_si_get_plane_width(&istream, 0);
uvwidth = y4m_si_get_plane_width(&istream, 1);
ylen = y4m_si_get_plane_length(&istream, 0);
uvlen = y4m_si_get_plane_length(&istream, 1);
/* Input and output frame buffers */
i_yuv[0] = (u_char *)malloc(ylen);
i_yuv[1] = (u_char *)malloc(uvlen);
i_yuv[2] = (u_char *)malloc(uvlen);
o_yuv[0] = (u_char *)malloc(ylen);
o_yuv[1] = (u_char *)malloc(uvlen);
o_yuv[2] = (u_char *)malloc(uvlen);
/*
* general purpose row/column scratch buffers. Slightly over allocated to
* simplify life.
*/
cur_col = (u_char *)malloc(MAX(ywidth, yheight));
dest_col = (u_char *)malloc(MAX(ywidth, yheight));
cur_row = (u_char *)malloc(MAX(ywidth, yheight));
dest_row = (u_char *)malloc(MAX(ywidth, yheight));
/*
* Generate the convolution matrices. The generation routine allocates the
* memory and returns the length.
*/
cmatrix_y_len = gen_convolve_matrix(y_radius, &cmatrix_y);
cmatrix_uv_len = gen_convolve_matrix(uv_radius, &cmatrix_uv);
ctable_y = gen_lookup_table(cmatrix_y, cmatrix_y_len);
ctable_uv = gen_lookup_table(cmatrix_uv, cmatrix_uv_len);
y4m_init_stream_info(&ostream);
y4m_copy_stream_info(&ostream, &istream);
y4m_write_stream_header(fileno(stdout), &ostream);
mjpeg_info("Luma radius: %f", y_radius);
mjpeg_info("Luma amount: %f", y_amount);
mjpeg_info("Luma threshold: %d", y_threshold);
if (uv_radius != -1.0)
{
mjpeg_info("Chroma radius: %f", uv_radius);
mjpeg_info("Chroma amount: %f", uv_amount);
mjpeg_info("Chroma threshold: %d", uv_threshold);
}
for (frameno = 0; y4m_read_frame(fdin, &istream, &iframe, i_yuv) == Y4M_OK; frameno++)
{
y4munsharp();
err = y4m_write_frame(fdout, &ostream, &iframe, o_yuv);
if (err != Y4M_OK)
{
mjpeg_error("y4m_write_frame err at frame %d", frameno);
break;
}
}
y4m_fini_frame_info(&iframe);
y4m_fini_stream_info(&istream);
y4m_fini_stream_info(&ostream);
exit(0);
}
int main(int argc, char **argv)
{
int i, c, interlace, frames, err;
int ywidth, yheight, uvwidth, uvheight, ylen, uvlen;
int verbose = 0, fdin;
int NlumaX = 4, NlumaY = 4, NchromaX = 4, NchromaY = 4;
float BWlumaX = 0.8, BWlumaY = 0.8, BWchromaX = 0.7, BWchromaY = 0.7;
struct filter *lumaXtaps, *lumaYtaps, *chromaXtaps, *chromaYtaps;
u_char *yuvinout[3];
float *yuvtmp1,*yuvtmp2;
y4m_stream_info_t istream, ostream;
y4m_frame_info_t iframe;
fdin = fileno(stdin);
y4m_accept_extensions(1);
/* read command line */
opterr = 0;
while ((c = getopt(argc, argv, "hvL:C:x:X:y:Y:")) != EOF)
{
switch (c)
{
case 'L':
sscanf(optarg,"%d,%f,%d,%f",&NlumaX,&BWlumaX,&NlumaY,&BWlumaY);
break;
case 'C':
sscanf(optarg,"%d,%f,%d,%f",&NchromaX,&BWchromaX,&NchromaY,&BWchromaY);
break;
case 'x':
sscanf(optarg,"%d,%f",&NchromaX,&BWchromaX);
break;
case 'X':
sscanf(optarg,"%d,%f",&NlumaX,&BWlumaX);
break;
case 'y':
sscanf(optarg,"%d,%f",&NchromaY,&BWchromaY);
break;
case 'Y':
sscanf(optarg,"%d,%f",&NlumaY,&BWlumaY);
break;
case 'v':
verbose++;
break;
case '?':
case 'h':
default:
usage();
}
}
if (BWlumaX <= 0.0 || BWlumaX > 1.0)
mjpeg_error_exit1("Horizontal luma bandwidth '%f' not >0 and <=1.0", BWlumaX);
if (BWlumaY <= 0.0 || BWlumaY > 1.0)
mjpeg_error_exit1("Vertical luma bandwidth '%f' not >0 and <=1.0", BWlumaY);
if (BWchromaX <= 0.0 || BWchromaX > 1.0)
mjpeg_error_exit1("Horizontal chroma bandwidth '%f' not >0 and <=1.0", BWchromaX);
if (BWchromaY <= 0.0 || BWchromaY > 1.0)
mjpeg_error_exit1("Vertical chroma bandwidth '%f' not >0 and <=1.0", BWchromaY);
/* initialize input stream and check chroma subsampling and interlacing */
y4m_init_stream_info(&istream);
y4m_init_frame_info(&iframe);
err = y4m_read_stream_header(fdin, &istream);
if (err != Y4M_OK)
mjpeg_error_exit1("Input stream error: %s\n", y4m_strerr(err));
if (y4m_si_get_plane_count(&istream) != 3)
mjpeg_error_exit1("Only the 3 plane formats supported");
i = y4m_si_get_interlace(&istream);
switch (i)
{
case Y4M_ILACE_NONE:
interlace = 0;
break;
case Y4M_ILACE_BOTTOM_FIRST:
case Y4M_ILACE_TOP_FIRST:
interlace = 1;
break;
default:
mjpeg_warn("Unknown interlacing '%d', assuming non-interlaced", i);
interlace = 0;
break;
}
ywidth = y4m_si_get_width(&istream); /* plane 0 = Y */
yheight = y4m_si_get_height(&istream);
ylen = ywidth * yheight;
uvwidth = y4m_si_get_plane_width(&istream, 1); /* planes 1&2 = U+V */
uvheight = y4m_si_get_plane_height(&istream, 1);
uvlen = y4m_si_get_plane_length(&istream, 1);
/* initialize output stream */
y4m_init_stream_info(&ostream);
y4m_copy_stream_info(&ostream, &istream);
y4m_write_stream_header(fileno(stdout), &ostream);
/* allocate input and output buffers */
yuvinout[0] = my_malloc(ylen*sizeof(u_char));
yuvinout[1] = my_malloc(uvlen*sizeof(u_char));
yuvinout[2] = my_malloc(uvlen*sizeof(u_char));
yuvtmp1 = my_malloc(MAX(ylen,uvlen)*sizeof(float));
yuvtmp2 = my_malloc(MAX(ylen,uvlen)*sizeof(float));
/* get filter taps */
lumaXtaps = get_coeff(NlumaX, BWlumaX);
lumaYtaps = get_coeff(NlumaY, BWlumaY);
chromaXtaps = get_coeff(NchromaX, BWchromaX);
chromaYtaps = get_coeff(NchromaY, BWchromaY);
set_accel(uvwidth,uvheight);
if (verbose)
y4m_log_stream_info(mjpeg_loglev_t("info"), "", &istream);
/* main processing loop */
for (frames=0; y4m_read_frame(fdin,&istream,&iframe,yuvinout) == Y4M_OK; frames++)
{
if (verbose && ((frames % 100) == 0))
mjpeg_info("Frame %d\n", frames);
convolveFrame(yuvinout[0],ywidth,yheight,interlace,lumaXtaps,lumaYtaps,yuvtmp1,yuvtmp2);
convolveFrame(yuvinout[1],uvwidth,uvheight,interlace,chromaXtaps,chromaYtaps,yuvtmp1,yuvtmp2);
convolveFrame(yuvinout[2],uvwidth,uvheight,interlace,chromaXtaps,chromaYtaps,yuvtmp1,yuvtmp2);
y4m_write_frame(fileno(stdout), &ostream, &iframe, yuvinout);
}
/* clean up */
y4m_fini_frame_info(&iframe);
y4m_fini_stream_info(&istream);
y4m_fini_stream_info(&ostream);
exit(0);
}
int main(int argc, char **argv)
{
int c, err, ilace;
int fd_in = fileno(stdin), fd_out = fileno(stdout);
y4m_ratio_t rate;
y4m_stream_info_t si, so;
y4m_frame_info_t fi;
uint8_t *top1[3], *bot1[3], *top2[3], *bot2[3];
opterr = 0;
while ((c = getopt(argc, argv, "h")) != EOF)
{
switch (c)
{
case 'h':
case '?':
default:
usage();
}
}
y4m_accept_extensions(1);
y4m_init_stream_info(&si);
y4m_init_stream_info(&so);
y4m_init_frame_info(&fi);
err = y4m_read_stream_header(fd_in, &si);
if (err != Y4M_OK)
mjpeg_error_exit1("Input stream error: %s\n", y4m_strerr(err));
if (y4m_si_get_plane_count(&si) != 3)
mjpeg_error_exit1("only 3 plane formats supported");
rate = y4m_si_get_framerate(&si);
if (!Y4M_RATIO_EQL(rate, y4m_fps_NTSC))
mjpeg_error_exit1("input stream not NTSC 30000:1001");
ilace = y4m_si_get_interlace(&si);
if (ilace != Y4M_ILACE_BOTTOM_FIRST && ilace != Y4M_ILACE_TOP_FIRST)
mjpeg_error_exit1("input stream not interlaced");
top1[0] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,0) / 2);
top1[1] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,1) / 2);
top1[2] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,2) / 2);
bot1[0] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,0) / 2);
bot1[1] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,1) / 2);
bot1[2] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,2) / 2);
top2[0] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,0) / 2);
top2[1] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,1) / 2);
top2[2] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,2) / 2);
bot2[0] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,0) / 2);
bot2[1] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,1) / 2);
bot2[2] = (uint8_t *) malloc(y4m_si_get_plane_length(&si,2) / 2);
y4m_copy_stream_info(&so, &si);
y4m_si_set_framerate(&so, y4m_fps_NTSC_FILM);
y4m_si_set_interlace(&so, Y4M_ILACE_NONE);
/*
* At this point the input stream has been verified to be interlaced NTSC,
* the output stream rate set to NTSC_FILM, interlacing tag changed to
* progressive, and the field buffers allocated.
*
* Time to write the output stream header and commence processing input.
*/
y4m_write_stream_header(fd_out, &so);
while (1)
{
err = y4m_read_fields(fd_in, &si, &fi, top1, bot1);
if (err != Y4M_OK)
goto done;
y4m_write_fields(fd_out, &so, &fi, top1, bot1); /* A */
err = y4m_read_fields(fd_in, &si, &fi, top1, bot1);
if (err != Y4M_OK)
goto done;
y4m_write_fields(fd_out, &so, &fi, top1, bot1); /* B */
err = y4m_read_fields(fd_in, &si, &fi, top1, bot1);
if (err != Y4M_OK)
goto done;
err = y4m_read_fields(fd_in, &si, &fi, top2, bot2);
if (err != Y4M_OK)
{
/*
* End of input when reading the 2nd "mixed field" frame (C+D). The previous
* frame was the first "mixed field" frame (B+C). Rather than emit a mixed
* interlaced frame duplicate a field and output the previous frame.
*/
if (ilace == Y4M_ILACE_BOTTOM_FIRST)
y4m_write_fields(fd_out, &so, &fi, bot1,bot1);
else
y4m_write_fields(fd_out, &so, &fi, top1,top1);
goto done;
}
/*
* Now the key part of the processing - effectively discarding the first mixed
* frame with fields from frames B + C and creating the C frame from the two
* mixed frames. For a BOTTOM FIELD FIRST stream use the 'top' field from
* frame 3 and the 'bottom' fields from frame 4. With a TOP FIELD FIRST stream
* it's the other way around - use the 'bottom' field from frame 3 and the
* 'top' field from frame 4.
*/
if (ilace == Y4M_ILACE_BOTTOM_FIRST)
y4m_write_fields(fd_out, &so, &fi, top1, bot2); /* C */
else
y4m_write_fields(fd_out, &so, &fi, top2, bot1); /* C */
err = y4m_read_fields(fd_in, &si, &fi, top1, bot1);
y4m_write_fields(fd_out, &so, &fi, top1, bot1); /* D */
}
done: y4m_fini_frame_info(&fi);
y4m_fini_stream_info(&si);
y4m_fini_stream_info(&so);
exit(0);
}
int
main(int argc, char **argv)
{
int sts, c, width = 640, height = 480, noheader = 0;
int Y = 16, U = 128, V = 128, chroma_mode = Y4M_CHROMA_420MPEG2;
int numframes = 1, force = 0;
y4m_ratio_t rate_ratio = y4m_fps_NTSC;
y4m_ratio_t aspect_ratio = y4m_sar_SQUARE;
int plane_length[3];
u_char *yuv[3];
y4m_stream_info_t ostream;
y4m_frame_info_t oframe;
char interlace = Y4M_ILACE_NONE;
opterr = 0;
y4m_accept_extensions(1);
while ((c = getopt(argc, argv, "Hfx:w:h:r:i:a:Y:U:V:n:")) != EOF)
{
switch (c)
{
case 'H':
noheader = 1;
break;
case 'a':
sts = y4m_parse_ratio(&aspect_ratio, optarg);
if (sts != Y4M_OK)
mjpeg_error_exit1("Invalid aspect: %s",
optarg);
break;
case 'w':
width = atoi(optarg);
break;
case 'h':
height = atoi(optarg);
break;
case 'r':
sts = y4m_parse_ratio(&rate_ratio, optarg);
if (sts != Y4M_OK)
mjpeg_error_exit1("Invalid rate: %s", optarg);
break;
case 'Y':
Y = atoi(optarg);
break;
case 'U':
U = atoi(optarg);
break;
case 'V':
V = atoi(optarg);
break;
case 'i':
switch (optarg[0])
{
case 'p':
interlace = Y4M_ILACE_NONE;
break;
case 't':
interlace = Y4M_ILACE_TOP_FIRST;
break;
case 'b':
interlace = Y4M_ILACE_BOTTOM_FIRST;
break;
default:
usage();
}
break;
case 'x':
chroma_mode = y4m_chroma_parse_keyword(optarg);
if (chroma_mode == Y4M_UNKNOWN)
{
if (strcmp(optarg, "help") != 0)
mjpeg_error("Invalid -x arg '%s'", optarg);
chroma_usage();
}
break;
case 'f':
force = 1;
break;
case 'n':
numframes = atoi(optarg);
break;
case '?':
default:
usage();
}
}
if (width <= 0)
mjpeg_error_exit1("Invalid Width: %d", width);
if (height <= 0)
mjpeg_error_exit1("Invalid Height: %d", height);
if (!force && (Y < 16 || Y > 235))
mjpeg_error_exit1("16 < Y < 235");
if (!force && (U < 16 || U > 240))
mjpeg_error_exit1("16 < U < 240");
if (!force && (V < 16 || V > 240))
mjpeg_error_exit1("16 < V < 240");
y4m_init_stream_info(&ostream);
y4m_init_frame_info(&oframe);
y4m_si_set_width(&ostream, width);
y4m_si_set_height(&ostream, height);
y4m_si_set_interlace(&ostream, interlace);
y4m_si_set_framerate(&ostream, rate_ratio);
y4m_si_set_sampleaspect(&ostream, aspect_ratio);
y4m_si_set_chroma(&ostream, chroma_mode);
if (y4m_si_get_plane_count(&ostream) != 3)
mjpeg_error_exit1("Only the 3 plane formats supported");
plane_length[0] = y4m_si_get_plane_length(&ostream, 0);
plane_length[1] = y4m_si_get_plane_length(&ostream, 1);
plane_length[2] = y4m_si_get_plane_length(&ostream, 2);
yuv[0] = malloc(plane_length[0]);
yuv[1] = malloc(plane_length[1]);
yuv[2] = malloc(plane_length[2]);
/*
* Now fill the array once with black but use the provided Y, U and V values
*/
memset(yuv[0], Y, plane_length[0]);
memset(yuv[1], U, plane_length[1]);
memset(yuv[2], V, plane_length[2]);
if (noheader == 0)
y4m_write_stream_header(fileno(stdout), &ostream);
while (numframes--)
y4m_write_frame(fileno(stdout), &ostream, &oframe, yuv);
free(yuv[0]);
free(yuv[1]);
free(yuv[2]);
y4m_fini_stream_info(&ostream);
y4m_fini_frame_info(&oframe);
exit(0);
}