bool encode_load_input_images(int argc, char **argv, Images &images) {
int nb_input_images = argc-1;
while(argc>1) {
Image image;
v_printf(2,"\r");
if (!image.load(argv[0])) {
e_printf("Could not read input file: %s\n", argv[0]);
return false;
};
images.push_back(std::move(image));
Image& last_image = images.back();
if (last_image.rows() != images[0].rows() || last_image.cols() != images[0].cols()) {
e_printf("Dimensions of all input images should be the same!\n");
e_printf(" First image is %ux%u\n",images[0].cols(),images[0].rows());
e_printf(" This image is %ux%u: %s\n",last_image.cols(),last_image.rows(),argv[0]);
return false;
}
if (last_image.numPlanes() < images[0].numPlanes()) {
if (images[0].numPlanes() == 3) last_image.ensure_chroma();
else if (images[0].numPlanes() == 4) last_image.ensure_alpha();
else { e_printf("Problem while loading input images, please report this.\n"); return false; }
} else if (last_image.numPlanes() > images[0].numPlanes()) {
if (last_image.numPlanes() == 3) { for (Image& i : images) i.ensure_chroma(); }
else if (last_image.numPlanes() == 4) { for (Image& i : images) i.ensure_alpha(); }
else { e_printf("Problem while loading input images, please report this.\n"); return false; }
}
argc--; argv++;
if (nb_input_images>1) {v_printf(2," (%i/%i) ",(int)images.size(),nb_input_images); v_printf(4,"\n");}
}
v_printf(2,"\n");
return true;
}
bool encode_load_input_images(int argc, char **argv, Images &images) {
int nb_input_images = argc-1;
while(argc>1) {
Image image;
v_printf(2,"\r");
if (!image.load(argv[0])) {
e_printf("Could not read input file: %s\n", argv[0]);
return false;
};
images.push_back(std::move(image));
const Image& last_image = images.back();
if (last_image.rows() != images[0].rows() || last_image.cols() != images[0].cols() || last_image.numPlanes() != images[0].numPlanes()) {
e_printf("Dimensions of all input images should be the same!\n");
e_printf(" First image is %ux%u, %i channels.\n",images[0].cols(),images[0].rows(),images[0].numPlanes());
e_printf(" This image is %ux%u, %i channels: %s\n",last_image.cols(),last_image.rows(),last_image.numPlanes(),argv[0]);
return false;
}
argc--; argv++;
if (nb_input_images>1) {v_printf(2," (%i/%i) ",(int)images.size(),nb_input_images); v_printf(4,"\n");}
}
v_printf(2,"\n");
return true;
}
bool encode_load_input_images(int argc, char **argv, Images &images, flif_options &options) {
int nb_input_images = argc-1;
int nb_actual_images = 0;
metadata_options md;
md.icc = options.color_profile;
md.xmp = options.metadata;
md.exif = options.metadata;
while(argc>1) {
int maxlength = strlen(argv[0])+100;
std::vector<char> vfilename(maxlength);
char *filename = argv[0];
int framecounter = 0;
int stop_searching = 0;
bool multiple=false;
if (!file_exists(argv[0]) && strchr(argv[0],'%')) {
multiple=true;
filename = &vfilename[0];
}
for ( ; framecounter < 0xFFFFFFF && stop_searching < 1000; framecounter++ ) {
if (multiple) {
snprintf(filename,maxlength,argv[0],framecounter);
if (!file_exists(filename)) {
stop_searching++;
continue;
}
stop_searching = 0;
}
Image image;
if (options.keep_palette) image.palette = true; // tells the PNG loader to keep palette intact
v_printf_tty(2,"\r");
if (!image.load(filename,md)) {
e_printf("Could not read input file: %s\n", argv[0]);
return false;
};
if (image.numPlanes() > 0) {
nb_actual_images++;
images.push_back(std::move(image));
Image& last_image = images.back();
if (last_image.rows() != images[0].rows() || last_image.cols() != images[0].cols()) {
e_printf("Dimensions of all input images should be the same!\n");
e_printf(" First image is %ux%u\n",images[0].cols(),images[0].rows());
e_printf(" This image is %ux%u: %s\n",last_image.cols(),last_image.rows(),filename);
return false;
}
if (last_image.numPlanes() < images[0].numPlanes()) {
if (images[0].numPlanes() == 3) last_image.ensure_chroma();
else if (images[0].numPlanes() == 4) last_image.ensure_alpha();
else { e_printf("Problem while loading input images, please report this.\n"); return false; }
} else if (last_image.numPlanes() > images[0].numPlanes()) {
if (last_image.numPlanes() == 3) { for (Image& i : images) i.ensure_chroma(); }
else if (last_image.numPlanes() == 4) { for (Image& i : images) i.ensure_alpha(); }
else { e_printf("Problem while loading input images, please report this.\n"); return false; }
}
} else {
if (images.size() == 0) {
e_printf("First specify the actual image(s), then the metadata.\n");
return false;
}
for (size_t i=0; i<image.metadata.size(); i++)
images[0].metadata.push_back(image.metadata[i]);
}
if (nb_input_images>1) {v_printf(2," (%i/%i) ",(int)images.size(),nb_input_images); v_printf(4,"\n");}
if (!multiple) break;
}
argc--; argv++;
}
if (nb_actual_images > 0) return true;
e_printf("Error: no actual input images to be encoded!\n");
return false;
}
bool handle_encode_arguments(int argc, char **argv, Images &images, int palette_size, int acb, flifEncodingOptional method, int lookback, int learn_repeats, int frame_delay) {
int nb_input_images = argc-1;
while(argc>1) {
Image image;
v_printf(2,"\r");
if (!image.load(argv[0])) {
e_printf("Could not read input file: %s\n", argv[0]);
return 2;
};
images.push_back(std::move(image));
const Image& last_image = images.back();
if (last_image.rows() != images[0].rows() || last_image.cols() != images[0].cols() || last_image.numPlanes() != images[0].numPlanes()) {
e_printf("Dimensions of all input images should be the same!\n");
e_printf(" First image is %ux%u, %i channels.\n",images[0].cols(),images[0].rows(),images[0].numPlanes());
e_printf(" This image is %ux%u, %i channels: %s\n",last_image.cols(),last_image.rows(),last_image.numPlanes(),argv[0]);
return 2;
}
argc--; argv++;
if (nb_input_images>1) {v_printf(2," (%i/%i) ",(int)images.size(),nb_input_images); v_printf(4,"\n");}
}
v_printf(2,"\n");
bool flat=true;
for (Image &image : images) if (image.uses_alpha()) flat=false;
if (flat && images[0].numPlanes() == 4) {
v_printf(2,"Alpha channel not actually used, dropping it.\n");
for (Image &image : images) image.drop_alpha();
}
uint64_t nb_pixels = (uint64_t)images[0].rows() * images[0].cols();
std::vector<std::string> desc;
desc.push_back("YIQ"); // convert RGB(A) to YIQ(A)
desc.push_back("BND"); // get the bounds of the color spaces
if (palette_size > 0)
desc.push_back("PLA"); // try palette (including alpha)
if (palette_size > 0)
desc.push_back("PLT"); // try palette (without alpha)
if (acb == -1) {
// not specified if ACB should be used
if (nb_pixels > 10000) desc.push_back("ACB"); // try auto color buckets on large images
} else if (acb) desc.push_back("ACB"); // try auto color buckets if forced
if (method.o == Optional::undefined) {
// no method specified, pick one heuristically
if (nb_pixels < 10000) method.encoding=flifEncoding::nonInterlaced; // if the image is small, not much point in doing interlacing
else method.encoding=flifEncoding::interlaced; // default method: interlacing
}
if (images.size() > 1) {
desc.push_back("DUP"); // find duplicate frames
desc.push_back("FRS"); // get the shapes of the frames
if (lookback != 0) desc.push_back("FRA"); // make a "deep" alpha channel (negative values are transparent to some previous frame)
}
if (learn_repeats < 0) {
// no number of repeats specified, pick a number heuristically
learn_repeats = TREE_LEARN_REPEATS;
if (nb_pixels < 5000) learn_repeats--; // avoid large trees for small images
if (learn_repeats < 0) learn_repeats=0;
}
FILE *file = fopen(argv[0],"wb");
if (!file)
return false;
FileIO fio(file, argv[0]);
return flif_encode(fio, images, desc, method.encoding, learn_repeats, acb, frame_delay, palette_size, lookback);
}
