CM MP4 Record

/* @prerec Input is prerec data */
gpointer cm_mp4_record_create(gboolean prerec);
void cm_mp4_record_destroy(gpointer hd);

void cm_mp4_record_start(gpointer hd);
void cm_mp4_record_stop(gpointer hd);

/* @size Cache size for prerecord to avoid drop frame */
void cm_mp4_record_set_queue_size(gpointer hd, guint size );

/* @duration Record duration in seconds */
void cm_mp4_record_set_duration(gpointer hd, guint64 duration );

/* @filename MP4 filename, xxxx.mp4 or xxxx%02d.mp4 if seamless enable */
void cm_mp4_record_set_filename(gpointer hd, gchar* filename);

/* @thumb Save the 1st video to jpeg as thumbnail if set thumb */
void cm_mp4_record_set_thumbnail(gpointer hd, const char* thumb);

/* @en Enable seamless mode */
void cm_mp4_record_set_seamless_mode(gpointer hd, gboolean en);

/* @duration The seamless duration in seconds */
void cm_mp4_record_set_seamless_duration(gpointer hd, guint64 duration);
void cm_mp4_record_set_bus_handler(gpointer hd, cm_bus_watch_ptr cb, gpointer user_data);

/**
 * Get mp4 record control info.
 * @key start-pts, stop-pts, current-duration
 * @val value
 */
void cm_mp4_record_get_control_info(gpointer hd, gchar* key, gpointer *value);

/**
 * @vsr A video/x-raw source(cmV4l2Src, ...) or video/h264 source(cmPrerecH264Src)
 * @asrc An audio/x-raw source(cmAacSrc, ...) or audio/mpeg source(cmPrerecAacSrc)
 */
void cm_mp4_record_link_to_source(gpointer hd, gpointer vsrc, gpointer asrc);
void cm_mp4_record_unlink(gpointer hd);

GstElement* cm_mp4_record_get_bin(gpointer hd);

//To watch the record status
static gboolean _record_bus_handler(GstBus * bus, GstMessage * msg, gpointer user_data){

	switch (GST_MESSAGE_TYPE(msg)) {
		case GST_MESSAGE_EOS:{
			g_message("mp4 record eos!");
			is_exit = TRUE;
			return GST_BUS_ASYNC;
		}  
		default:
		break;
	}
	/* pass all messages on the async queue */
	return TRUE;
}

static gboolean _main_loop(gpointer arg) {
	if(!vsrc) {
		//Create source
		vsrc = cm_video_v4l2_source_create("/dev/video0");
        //Select video format
		cm_video_v4l2_source_set_caps_str0(vsrc, 
  			"video/x-raw,format=UYVY,width=1280,height=720,colorimetry=(string)1:4:7:1");
		cm_video_v4l2_source_start(vsrc);
	}

	if(!asrc) {
        //Create source
		asrc = cm_audio_alsa_source_create("hw:1,0");
		cm_audio_alsa_source_start(asrc);
	}
    //Wait the audio source and video source are ready
	if(cm_audio_alsa_source_is_ready(asrc) && cm_video_v4l2_source_is_ready(vsrc)){
		if(!mp4){
			mp4 = cm_mp4_record_create(FALSE);
  			cm_mp4_record_set_duration(mp4, 15);
		
			time_t cur_time;
			time(&cur_time);
			struct tm *local = localtime(&cur_time);

			char filename[64] = {0};
			sprintf(filename, "REC_%04d%02d%02d%02d%02d%02d.mp4", 
			   local->tm_year + 1900, local->tm_mon + 1, local->tm_mday,
			   local->tm_hour, local->tm_min, local->tm_sec);
            //Set the filename
			cm_mp4_record_set_filename(mp4, filename);
            //Link to the source
			cm_mp4_record_link_to_source(mp4, vsrc, asrc);
            //Add bus watch
			cm_mp4_record_set_bus_handler(mp4, _record_bus_handler, NULL);
  			cm_mp4_record_start(mp4);

			gst_print("%s\n", filename);
		}
		else{
			guint64 duration_ms;
            //Get the current duration mux
			cm_mp4_record_get_control_info(mp4, "current-duration", (void**)&duration_ms);
    		gst_print("Mp4 recording......%d%%\r", duration_ms / duration / 10);
			if(duration_ms/1000 >= duration){
				is_exit = TRUE;
			}
		}
	}	
    ......
}