playback.c

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 *    notice, this list of conditions and the following disclaimer.
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#ifdef HAVE_CONFIG_H
#include "config.h"
#include "config_unix.h"
#include "config_win32.h"
#endif
 
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
 
#include "debug.h"
#include "keyboard_control.h"
#include "playback.h"
#include "utils/color_out.h"
#include "utils/text.h"
 
#define MOD_NAME "[playback] "
 
static void  playback_usage(void) {
        char desc[] = TBOLD("playback") " can capture data from locally "
                "stored data, which can be either a regular video file, "
                "or a directory with data recorded by UltraGrid itself "
                "(--record option).";
        color_printf("%s\n\n", wrap_paragraph(desc));
        color_printf("Usage:\n");
        color_printf(TBOLD(TRED("\t--playback <file>|<dir>") "[:loop]\n"));
        color_printf(TBOLD(TRED("\t-I{<file>|<dir>}") "[:loop]\n"));
        color_printf(TBOLD("\t-Ihelp | --playback help") "\n\n");
        color_printf("Use ");
        color_printf(TERM_BOLD "-t file:help" TERM_RESET " or " TERM_BOLD "-t import:help" TERM_RESET " to see further specific configuration options.\n\n");
}
 
int playback_set_device(char *device_string, size_t buf_len, const char *optarg) {
        bool is_import = false;
        if (strcmp(optarg, "help") == 0) {
                playback_usage();
                return 0;
        }
        char *path = strdup(optarg);
        if (strchr(path, ':')) {
                *strchr(path, ':') = '\0';
        }
 
        struct stat sb;
        if (stat(path, &sb) == -1) {
                perror(MOD_NAME "stat");
                log_msg(LOG_LEVEL_ERROR, MOD_NAME "Cannot access file or directory '%s'\n", path);
                log_msg(LOG_LEVEL_INFO, MOD_NAME "Use '--playback help' to see usage.\n");
                free(path);
                return -1;
        }
 
        if (sb.st_mode & S_IFDIR || strstr(path, "video.info") != NULL) {
                is_import = true;
        }
 
        snprintf(device_string, buf_len, "%s:%s:opportunistic_audio", is_import ? "import" : "file", optarg);
        free(path);
        return 1;
}
 
void playback_register_keyboard_ctl(struct module *mod) {
        struct { int key; const char *msg; } kb[] = {{K_PGUP, "seek +600s"}, {K_PGDOWN, "seek -600s"}, {K_UP, "seek +60s"}, {K_DOWN, "seek -60s"}, {K_LEFT, "seek -10s"}, {K_RIGHT, "seek +10s"}, {' ', "pause"}, {'q', "quit"}};
        for (size_t i = 0; i < sizeof kb / sizeof kb[0]; ++i) {
                char description[200];
                snprintf(description, sizeof description, "playback %s", kb[i].msg);
                if (!keycontrol_register_key(mod, kb[i].key, kb[i].msg, description)) {
                        log_msg(LOG_LEVEL_ERROR, "Cannot register key %d control for playback!\n", kb[i].key);
                }
        }
}