GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

sample/uvc_app/application.c

@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) XMEDIA. All rights reserved.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+
+#include "camera.h"
+#include "frame_cache.h"
+#include "config_svc.h"
+
+#include "log_base.h"
+
+unsigned int g_uvc = 1;
+unsigned int g_bulk = 0;
+unsigned int g_uac = 0;
+unsigned int g_loglevel = LOG_LEVEL_INFO;
+
+volatile sig_atomic_t g_need_quit_flag = 0;
+
+static void sample_uvc_usage(char *process)
+{
+    printf("Usage : %s <param>\n", process);
+    printf("param:\n");
+    printf("\t -h            --for help.\n");
+    printf("\t -bulkmode     --use uvc bulkmode.\n");
+    printf("\t -uac          --enable uac.\n");
+    printf("\t -loglevel x   --set the log level to x (0 ~ 5).\n");
+    printf("\n");
+}
+
+void sample_uvc_handle_signal(int signo)
+{
+
+    switch (signo) {
+        case SIGINT:
+        case SIGTERM:
+            signal(SIGINT, SIG_IGN);
+            signal(SIGTERM, SIG_IGN);
+            signal(SIGUSR1, SIG_IGN);
+            signal(SIGUSR2, SIG_IGN);
+            g_need_quit_flag = 1;
+            return;
+
+        case SIGUSR1:
+            if (g_loglevel > 0)
+                g_loglevel--;
+            break;
+
+        case SIGUSR2:
+            if (g_loglevel < LOG_LEVEL_DEBUG)
+                g_loglevel++;
+            break;
+
+        default:
+            break;
+    }
+
+    printf("[UVC_APP] Change the log level to %d\n", g_loglevel);
+}
+
+static int create_cache(void)
+{
+    if (create_uvc_cache() != 0) {
+        return -1;
+    }
+
+    return 0;
+}
+
+static void destroy_cache(void)
+{
+    destroy_uvc_cache();
+
+    return;
+}
+
+static int run_camera(void)
+{
+    if (get_camera()->init() != 0) {
+        return -1;
+    }
+
+    if (get_camera()->open() != 0) {
+        get_camera()->deinit();
+
+        return -1;
+    }
+
+    if (get_camera()->run() != 0) {
+        get_camera()->close();
+        get_camera()->deinit();
+
+        return -1;
+    }
+
+    return 0;
+}
+
+void stop_camera(void)
+{
+    get_camera()->stop();
+    get_camera()->close();
+    get_camera()->deinit();
+
+    return;
+}
+
+int main(int argc, char *argv[])
+{
+    int i = 1;
+
+    printf("\n@@@@@ UVC App Sample @@@@@\n\n");
+
+    while (i < argc) {
+        if (strcmp(argv[i], "-bulkmode") == 0) {
+            g_bulk = 1;
+        }
+
+        if (strcmp(argv[i], "-uac") == 0) {
+            g_uac = 1;
+        }
+
+        if (strcmp(argv[i], "-loglevel") == 0) {
+            i++;
+            g_loglevel = atoi(argv[i]);
+        }
+
+        if (strcmp(argv[i], "-h") == 0) {
+            sample_uvc_usage(argv[0]);
+            exit(0);
+        }
+
+        i++;
+    }
+
+    signal(SIGINT, sample_uvc_handle_signal);
+    signal(SIGTERM, sample_uvc_handle_signal);
+    signal(SIGUSR1, sample_uvc_handle_signal);
+    signal(SIGUSR2, sample_uvc_handle_signal);
+
+    if (create_config_svc("./uvc_app.conf") != 0) {
+        goto EXIT0;
+    }
+
+    if (create_cache() != 0) {
+        goto EXIT1;
+    }
+
+    if (run_camera() != 0) {
+        goto EXIT2;
+    }
+
+    while(!g_need_quit_flag) {
+        sleep(2);
+    }
+
+EXIT2:
+    stop_camera();
+    destroy_cache();
+
+EXIT1:
+    release_cofnig_svc();
+
+EXIT0:
+    printf("uvc_app exit!\n");
+
+    return 0;
+}