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-rw-r--r--main.c87
1 files changed, 58 insertions, 29 deletions
diff --git a/main.c b/main.c
index 461fe06..beac5f1 100644
--- a/main.c
+++ b/main.c
@@ -3,7 +3,7 @@
/*
TODO:
- application icon (and SDL_SetWindowIcon)
-- cmdline argument for starting in video mode
+- adjustable jpeg and video quality
*/
#define _GNU_SOURCE
@@ -26,7 +26,7 @@ TODO:
#include "camera.h"
#include "video.h"
#include "log.h"
-
+#include "argparser.h"
// pixel format used for convenience
#define PIX_FMT_XXXGRAY 0x47585858
@@ -146,10 +146,11 @@ static void APIENTRY gl_message_callback(GLenum source, GLenum type, unsigned in
}
#endif
-static void settings_save(State *state) {
+static void settings_save(State *state, const char *settings_path) {
Settings *settings = &state->settings;
char *tmp_settings_path = a_sprintf("%s/settings.txt.tmp", state->config_dir);
- char *settings_path = a_sprintf("%s/settings.txt", state->config_dir);
+ char *default_settings_path = a_sprintf("%s/settings.txt", state->config_dir);
+ if (!settings_path) settings_path = default_settings_path;
FILE *settings_file = fopen(tmp_settings_path, "w");
if (settings_file) {
arr_foreach_ptr(settings->camera_precedence, const Hash, h) {
@@ -180,12 +181,13 @@ static void settings_save(State *state) {
log_perror("couldn't open %s", tmp_settings_path);
}
free(tmp_settings_path);
- free(settings_path);
+ free(default_settings_path);
}
-static void settings_load(State *state) {
+static void settings_load(State *state, const char *settings_path) {
Settings *settings = &state->settings;
- char *settings_path = a_sprintf("%s/settings.txt", state->config_dir);
+ char *default_settings_path = a_sprintf("%s/settings.txt", state->config_dir);
+ if (!settings_path) settings_path = default_settings_path;
FILE *settings_file = fopen(settings_path, "r");
if (settings_file) {
static char line[PATH_MAX + 256];
@@ -272,7 +274,7 @@ static void settings_load(State *state) {
// ok, default settings
settings->output_dir = strdup(DEFAULT_OUTPUT_DIR);
}
- free(settings_path);
+ free(default_settings_path);
}
static PictureFormat settings_picture_format_for_camera(State *state, Camera *camera) {
@@ -828,7 +830,6 @@ static bool take_picture(State *state) {
break;
case MODE_VIDEO:
if (state->camera) {
- // TODO: adjustable video quality
success = video_start(state->video, path,
camera_frame_width(state->camera), camera_frame_height(state->camera),
camera_framerate(state->camera), 5);
@@ -841,10 +842,52 @@ static bool take_picture(State *state) {
return success;
}
-int main(void) {
+static void print_help(void) {
+ printf("camlet v. " VERSION "\n");
+ printf("Usage: camlet [--help] [--version] [--settings FILE] [--video]\n");
+ printf(" --help - Display this documentation and exit\n");
+ printf(" --version - Show version information and exit\n");
+ printf(" --video - Start camlet in video mode\n");
+ printf(" --settings FILE - Read settings from FILE, instead of the default location.\n");
+ printf(" Any changes made to settings will be saved there.\n");
+ printf("\n");
+ printf("For help on how to use camlet, press F1 while it is running.\n");
+}
+
+int main(int argc, char **argv) {
static State state_data = {0};
State *state = &state_data;
Settings *settings = &state->settings;
+ const char *settings_path = NULL;
+ {
+ // parse command-line arguments
+ ArgParser parser = {
+ .argc = argc,
+ .argv = argv,
+ .options_with_value = "settings"
+ };
+ while (arg_parser_next(&parser)) {
+ if (!parser.option) {
+ fprintf(stderr, "Unrecognized option: %s\n", parser.value);
+ print_help();
+ return EXIT_FAILURE;
+ } else if (strcmp(parser.option, "settings") == 0) {
+ settings_path = parser.value;
+ } else if (strcmp(parser.option, "version") == 0) {
+ printf("camlet v. " VERSION "\n");
+ return 0;
+ } else if (strcmp(parser.option, "help") == 0) {
+ print_help();
+ return 0;
+ } else if (strcmp(parser.option, "video") == 0) {
+ state->mode = MODE_VIDEO;
+ } else {
+ fprintf(stderr, "Unrecognized option: %s\n", parser.option);
+ print_help();
+ return EXIT_FAILURE;
+ }
+ }
+ }
{
// get home directory
const char *home = getenv("HOME");
@@ -887,7 +930,7 @@ int main(void) {
}
free(log_path);
}
- settings_load(state);
+ settings_load(state, settings_path);
SDL_SetHint(SDL_HINT_NO_SIGNAL_HANDLERS, "1"); // if this program is sent a SIGTERM/SIGINT, don't turn it into a quit event
if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
log_error("couldn't initialize SDL");
@@ -1283,23 +1326,9 @@ void main() {\n\
if (state->curr_menu) break;
if (video_is_recording(state->video)) break;
state->mode = (state->mode + 1) % MODE_COUNT;
- switch (state->mode) {
- case MODE_IMAGE:
- camera_set_format(state->camera,
- settings_picture_format_for_camera(state, state->camera),
- settings_desired_framerate(state),
- 0, false);
- break;
- case MODE_VIDEO: {
- PictureFormat picfmt = settings_picture_format_for_camera(state, state->camera);
- // force V4L2 to do the conversion if we have to
- picfmt.pixfmt = V4L2_PIX_FMT_YUV420;
- camera_set_format(state->camera, picfmt, settings_desired_framerate(state), 0, false);
- } break;
- case MODE_COUNT:
- assert(false);
- break;
- }
+ // picture format may be different now
+ PictureFormat picfmt = settings_picture_format_for_camera(state, state->camera);
+ camera_set_format(state->camera, picfmt, settings_desired_framerate(state), 0, false);
break;
case SDLK_SPACE:
if (!state->camera || state->curr_menu != 0) break;
@@ -1819,7 +1848,7 @@ void main() {\n\
arr_foreach_ptr(state->cameras, Camera *, pcamera) {
camera_free(*pcamera);
}
- settings_save(state);
+ settings_save(state, settings_path);
udev_monitor_unref(udev_monitor);
udev_unref(udev);
arr_free(state->cameras);
generated by cgit v1.2.3 (git 2.39.1) at 2025-04-02 06:06:57 +0000