429 lines
12 KiB
C
429 lines
12 KiB
C
#include "process_pipeline.h"
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#include "pipeline.h"
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#include "main.h"
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#include "config.h"
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#include "quickpreview.h"
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#include <tiffio.h>
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#include <assert.h>
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#include <math.h>
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#include <wordexp.h>
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#include <gtk/gtk.h>
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#define TIFFTAG_FORWARDMATRIX1 50964
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static const float colormatrix_srgb[] = { 3.2409, -1.5373, -0.4986, -0.9692, 1.8759,
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0.0415, 0.0556, -0.2039, 1.0569 };
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static MPPipeline *pipeline;
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static char burst_dir[23];
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static char processing_script[512];
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static volatile bool is_capturing = false;
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static volatile int frames_processed = 0;
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static volatile int frames_received = 0;
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static const struct mp_camera_config *camera;
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static MPCameraMode mode;
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static int burst_length;
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static int captures_remaining = 0;
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static int preview_width;
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static int preview_height;
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// static bool gain_is_manual;
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static int gain;
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static int gain_max;
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static bool exposure_is_manual;
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static int exposure;
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static char capture_fname[255];
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static void
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register_custom_tiff_tags(TIFF *tif)
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{
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static const TIFFFieldInfo custom_fields[] = {
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{ TIFFTAG_FORWARDMATRIX1, -1, -1, TIFF_SRATIONAL, FIELD_CUSTOM, 1, 1,
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"ForwardMatrix1" },
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};
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// Add missing dng fields
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TIFFMergeFieldInfo(tif, custom_fields,
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sizeof(custom_fields) / sizeof(custom_fields[0]));
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}
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static bool
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find_processor(char *script)
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{
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char *xdg_config_home;
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char filename[] = "postprocess.sh";
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wordexp_t exp_result;
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// Resolve XDG stuff
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if ((xdg_config_home = getenv("XDG_CONFIG_HOME")) == NULL) {
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xdg_config_home = "~/.config";
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}
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wordexp(xdg_config_home, &exp_result, 0);
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xdg_config_home = strdup(exp_result.we_wordv[0]);
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wordfree(&exp_result);
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// Check postprocess.h in the current working directory
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sprintf(script, "%s", filename);
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if (access(script, F_OK) != -1) {
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sprintf(script, "./%s", filename);
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printf("Found postprocessor script at %s\n", script);
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return true;
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}
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// Check for a script in XDG_CONFIG_HOME
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sprintf(script, "%s/megapixels/%s", xdg_config_home, filename);
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if (access(script, F_OK) != -1) {
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printf("Found postprocessor script at %s\n", script);
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return true;
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}
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// Check user overridden /etc/megapixels/postprocessor.sh
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sprintf(script, "%s/megapixels/%s", SYSCONFDIR, filename);
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if (access(script, F_OK) != -1) {
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printf("Found postprocessor script at %s\n", script);
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return true;
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}
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// Check packaged /usr/share/megapixels/postprocessor.sh
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sprintf(script, "%s/megapixels/%s", DATADIR, filename);
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if (access(script, F_OK) != -1) {
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printf("Found postprocessor script at %s\n", script);
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return true;
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}
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return false;
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}
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static void
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setup(MPPipeline *pipeline, const void *data)
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{
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TIFFSetTagExtender(register_custom_tiff_tags);
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if (!find_processor(processing_script)) {
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g_printerr("Could not find any post-process script\n");
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exit(1);
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}
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}
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void
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mp_process_pipeline_start()
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{
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pipeline = mp_pipeline_new();
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mp_pipeline_invoke(pipeline, setup, NULL, 0);
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}
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void
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mp_process_pipeline_stop()
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{
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mp_pipeline_free(pipeline);
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}
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static void
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process_image_for_preview(const MPImage *image)
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{
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uint32_t surface_width, surface_height, skip;
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quick_preview_size(&surface_width, &surface_height, &skip, preview_width,
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preview_height, image->width, image->height,
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image->pixel_format, camera->rotate);
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cairo_surface_t *surface = cairo_image_surface_create(
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CAIRO_FORMAT_RGB24, surface_width, surface_height);
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uint8_t *pixels = cairo_image_surface_get_data(surface);
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quick_preview((uint32_t *)pixels, surface_width, surface_height, image->data,
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image->width, image->height, image->pixel_format,
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camera->rotate, camera->mirrored,
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camera->previewmatrix[0] == 0 ? NULL : camera->previewmatrix,
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camera->blacklevel, skip);
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mp_main_set_preview(surface);
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}
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static void
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process_image_for_capture(const MPImage *image, int count)
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{
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time_t rawtime;
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time(&rawtime);
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struct tm tim = *(localtime(&rawtime));
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char datetime[20] = { 0 };
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strftime(datetime, 20, "%Y:%m:%d %H:%M:%S", &tim);
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char fname[255];
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sprintf(fname, "%s/%d.dng", burst_dir, count);
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TIFF *tif = TIFFOpen(fname, "w");
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if (!tif) {
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printf("Could not open tiff\n");
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}
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// Define TIFF thumbnail
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TIFFSetField(tif, TIFFTAG_SUBFILETYPE, 1);
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TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, image->width >> 4);
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TIFFSetField(tif, TIFFTAG_IMAGELENGTH, image->height >> 4);
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TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
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TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_NONE);
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TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
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TIFFSetField(tif, TIFFTAG_MAKE, mp_get_device_make());
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TIFFSetField(tif, TIFFTAG_MODEL, mp_get_device_model());
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uint16_t orientation;
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if (camera->rotate == 0) {
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orientation = camera->mirrored ? ORIENTATION_TOPRIGHT :
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ORIENTATION_TOPLEFT;
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} else if (camera->rotate == 90) {
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orientation = camera->mirrored ? ORIENTATION_RIGHTBOT :
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ORIENTATION_LEFTBOT;
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} else if (camera->rotate == 180) {
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orientation = camera->mirrored ? ORIENTATION_BOTLEFT :
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ORIENTATION_BOTRIGHT;
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} else {
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orientation = camera->mirrored ? ORIENTATION_LEFTTOP :
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ORIENTATION_RIGHTTOP;
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}
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TIFFSetField(tif, TIFFTAG_ORIENTATION, orientation);
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TIFFSetField(tif, TIFFTAG_DATETIME, datetime);
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TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
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TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
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TIFFSetField(tif, TIFFTAG_SOFTWARE, "Megapixels");
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long sub_offset = 0;
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TIFFSetField(tif, TIFFTAG_SUBIFD, 1, &sub_offset);
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TIFFSetField(tif, TIFFTAG_DNGVERSION, "\001\001\0\0");
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TIFFSetField(tif, TIFFTAG_DNGBACKWARDVERSION, "\001\0\0\0");
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char uniquecameramodel[255];
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sprintf(uniquecameramodel, "%s %s", mp_get_device_make(),
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mp_get_device_model());
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TIFFSetField(tif, TIFFTAG_UNIQUECAMERAMODEL, uniquecameramodel);
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if (camera->colormatrix[0]) {
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TIFFSetField(tif, TIFFTAG_COLORMATRIX1, 9, camera->colormatrix);
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} else {
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TIFFSetField(tif, TIFFTAG_COLORMATRIX1, 9, colormatrix_srgb);
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}
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if (camera->forwardmatrix[0]) {
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TIFFSetField(tif, TIFFTAG_FORWARDMATRIX1, 9, camera->forwardmatrix);
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}
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static const float neutral[] = { 1.0, 1.0, 1.0 };
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TIFFSetField(tif, TIFFTAG_ASSHOTNEUTRAL, 3, neutral);
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TIFFSetField(tif, TIFFTAG_CALIBRATIONILLUMINANT1, 21);
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// Write black thumbnail, only windows uses this
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{
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unsigned char *buf =
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(unsigned char *)calloc(1, (int)image->width >> 4);
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for (int row = 0; row < (image->height >> 4); row++) {
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TIFFWriteScanline(tif, buf, row, 0);
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}
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free(buf);
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}
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TIFFWriteDirectory(tif);
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// Define main photo
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TIFFSetField(tif, TIFFTAG_SUBFILETYPE, 0);
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TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, image->width);
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TIFFSetField(tif, TIFFTAG_IMAGELENGTH, image->height);
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TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
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TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_CFA);
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TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
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TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
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static const short cfapatterndim[] = { 2, 2 };
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TIFFSetField(tif, TIFFTAG_CFAREPEATPATTERNDIM, cfapatterndim);
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#if (TIFFLIB_VERSION < 20201219) && !LIBTIFF_CFA_PATTERN
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TIFFSetField(tif, TIFFTAG_CFAPATTERN, "\002\001\001\000"); // BGGR
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#else
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TIFFSetField(tif, TIFFTAG_CFAPATTERN, 4, "\002\001\001\000"); // BGGR
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#endif
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printf("TIFF version %d\n", TIFFLIB_VERSION);
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if (camera->whitelevel) {
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TIFFSetField(tif, TIFFTAG_WHITELEVEL, 1, &camera->whitelevel);
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}
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if (camera->blacklevel) {
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TIFFSetField(tif, TIFFTAG_BLACKLEVEL, 1, &camera->blacklevel);
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}
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TIFFCheckpointDirectory(tif);
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printf("Writing frame to %s\n", fname);
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unsigned char *pLine = (unsigned char *)malloc(image->width);
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for (int row = 0; row < image->height; row++) {
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TIFFWriteScanline(tif, image->data + (row * image->width), row, 0);
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}
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free(pLine);
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TIFFWriteDirectory(tif);
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// Add an EXIF block to the tiff
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TIFFCreateEXIFDirectory(tif);
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// 1 = manual, 2 = full auto, 3 = aperture priority, 4 = shutter priority
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if (!exposure_is_manual) {
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TIFFSetField(tif, EXIFTAG_EXPOSUREPROGRAM, 2);
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} else {
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TIFFSetField(tif, EXIFTAG_EXPOSUREPROGRAM, 1);
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}
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TIFFSetField(tif, EXIFTAG_EXPOSURETIME,
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(mode.frame_interval.numerator /
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(float)mode.frame_interval.denominator) /
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((float)image->height / (float)exposure));
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uint16_t isospeed[1];
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isospeed[0] = (uint16_t)remap(gain - 1, 0, gain_max, camera->iso_min,
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camera->iso_max);
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TIFFSetField(tif, EXIFTAG_ISOSPEEDRATINGS, 1, isospeed);
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TIFFSetField(tif, EXIFTAG_FLASH, 0);
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TIFFSetField(tif, EXIFTAG_DATETIMEORIGINAL, datetime);
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TIFFSetField(tif, EXIFTAG_DATETIMEDIGITIZED, datetime);
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if (camera->fnumber) {
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TIFFSetField(tif, EXIFTAG_FNUMBER, camera->fnumber);
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}
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if (camera->focallength) {
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TIFFSetField(tif, EXIFTAG_FOCALLENGTH, camera->focallength);
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}
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if (camera->focallength && camera->cropfactor) {
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TIFFSetField(tif, EXIFTAG_FOCALLENGTHIN35MMFILM,
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(short)(camera->focallength * camera->cropfactor));
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}
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uint64_t exif_offset = 0;
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TIFFWriteCustomDirectory(tif, &exif_offset);
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TIFFFreeDirectory(tif);
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// Update exif pointer
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TIFFSetDirectory(tif, 0);
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TIFFSetField(tif, TIFFTAG_EXIFIFD, exif_offset);
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TIFFRewriteDirectory(tif);
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TIFFClose(tif);
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}
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static void
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process_capture_burst()
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{
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time_t rawtime;
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time(&rawtime);
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struct tm tim = *(localtime(&rawtime));
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char timestamp[30];
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strftime(timestamp, 30, "%Y%m%d%H%M%S", &tim);
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sprintf(capture_fname, "%s/Pictures/IMG%s", getenv("HOME"), timestamp);
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// Start post-processing the captured burst
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g_print("Post process %s to %s.ext\n", burst_dir, capture_fname);
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char command[1024];
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sprintf(command, "%s %s %s &", processing_script, burst_dir, capture_fname);
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system(command);
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}
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static void
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process_image(MPPipeline *pipeline, const MPImage *image)
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{
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assert(image->width == mode.width && image->height == mode.height);
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process_image_for_preview(image);
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if (captures_remaining > 0) {
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int count = burst_length - captures_remaining;
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--captures_remaining;
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process_image_for_capture(image, count);
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if (captures_remaining == 0) {
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process_capture_burst();
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mp_main_capture_completed(capture_fname);
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}
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}
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free(image->data);
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++frames_processed;
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if (captures_remaining == 0) {
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is_capturing = false;
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}
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}
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void
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mp_process_pipeline_process_image(MPImage image)
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{
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// If we haven't processed the previous frame yet, drop this one
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if (frames_received != frames_processed && !is_capturing) {
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printf("Dropped frame at capture\n");
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return;
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}
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++frames_received;
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mp_pipeline_invoke(pipeline, (MPPipelineCallback)process_image, &image,
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sizeof(MPImage));
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}
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static void
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capture()
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{
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char template[] = "/tmp/megapixels.XXXXXX";
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char *tempdir;
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tempdir = mkdtemp(template);
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if (tempdir == NULL) {
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g_printerr("Could not make capture directory %s\n", template);
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exit(EXIT_FAILURE);
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}
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strcpy(burst_dir, tempdir);
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captures_remaining = burst_length;
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}
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void
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mp_process_pipeline_capture()
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{
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is_capturing = true;
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mp_pipeline_invoke(pipeline, capture, NULL, 0);
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}
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static void
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update_state(MPPipeline *pipeline, const struct mp_process_pipeline_state *state)
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{
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camera = state->camera;
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mode = state->mode;
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burst_length = state->burst_length;
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preview_width = state->preview_width;
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preview_height = state->preview_height;
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// gain_is_manual = state->gain_is_manual;
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gain = state->gain;
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gain_max = state->gain_max;
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exposure_is_manual = state->exposure_is_manual;
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exposure = state->exposure;
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struct mp_main_state main_state = {
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.camera = camera,
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.mode = mode,
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.gain_is_manual = state->gain_is_manual,
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.gain = gain,
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.gain_max = gain_max,
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.exposure_is_manual = exposure_is_manual,
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.exposure = exposure,
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.has_auto_focus_continuous = state->has_auto_focus_continuous,
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.has_auto_focus_start = state->has_auto_focus_start,
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};
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mp_main_update_state(&main_state);
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}
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void
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mp_process_pipeline_update_state(const struct mp_process_pipeline_state *new_state)
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{
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mp_pipeline_invoke(pipeline, (MPPipelineCallback)update_state, new_state,
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sizeof(struct mp_process_pipeline_state));
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}
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