Is there any way to reduce the CPU consumption of GStreamer streaming？ - c++

Question

I use GStreamer to implement RTMP streaming, and the CPU usage is as high as 400%. Is there any way to reduce the CPU usage?
The main function of the code is to continuously receive the mat image of OpenCV, put it into appsrc, and finally push the RTMP stream
The code is as follows：
void cb_need_data(GstElement *appsrc, guint unused_size, gpointer user_data)
{
printf("need data!\n");
static GstClockTime timestamp = 0;
GstBuffer *buffer;
guint size;
GstFlowReturn ret;
GstMapInfo map;
size = 700 * 700 * 3;
buffer = gst_buffer_new_allocate(NULL, size, NULL);
gst_buffer_map(buffer, &map, GST_MAP_READ);
while (image.data == NULL)
{
std::this_thread::sleep_for(std::chrono::milliseconds(100));
};
memcpy(map.data, image.data, size);
GST_BUFFER_PTS(buffer) = timestamp;
GST_BUFFER_DURATION(buffer) = gst_util_uint64_scale_int(1, GST_SECOND, 30);
timestamp += GST_BUFFER_DURATION(buffer);
g_signal_emit_by_name(appsrc, "push-buffer", buffer, &ret);
gst_buffer_unmap(buffer, &map);
gst_buffer_unref(buffer);
if (ret != GST_FLOW_OK)
{
/* something wrong, stop pushing */
g_main_loop_quit(loop);
}
}
void *rtmpPush(void *p)
{
/* init GStreamer */
gst_init(NULL, NULL);
loop = g_main_loop_new(NULL, FALSE);
GstElement *pipeline, *appsrc, *conv, *x264enc, *h264parse, *flvmux, *videosink;
/* setup pipeline */
pipeline = gst_pipeline_new("pipeline");
appsrc = gst_element_factory_make("appsrc", "source");
conv = gst_element_factory_make("videoconvert", "conv");
h264parse = gst_element_factory_make("h264parse", "h264parse");
flvmux = gst_element_factory_make("flvmux", "flvmux");
x264enc = gst_element_factory_make("x264enc", "x264enc");
videosink = gst_element_factory_make("rtmpsink", "videosink");
g_object_set(G_OBJECT(videosink), "location", "rtmp://218.77.60.210:1935/rtmplive/354", NULL);
/* setup */
// g_object_set(G_OBJECT(appsrc),
// "stream-type", 0,
// "format", GST_FORMAT_TIME, NULL);
g_object_set(G_OBJECT(appsrc),
"is-live", 1,
"stream-type", 0,
//"format", GST_FORMAT_TIME, NULL,
"caps",
gst_caps_new_simple("video/x-raw",
"format", G_TYPE_STRING, "BGR",
"width", G_TYPE_INT, 700,
"height", G_TYPE_INT, 700,
"framerate", GST_TYPE_FRACTION, 30, 1,
NULL),
NULL);
gst_bin_add_many(GST_BIN(pipeline), appsrc, conv, x264enc, flvmux, videosink, NULL);
gst_element_link_many(appsrc, conv, x264enc, flvmux, videosink, NULL);
g_signal_connect(appsrc, "need-data", G_CALLBACK(cb_need_data), NULL);
//g_signal_connect(appsrc, "enough-data", G_CALLBACK(cb_enough_data), NULL);
/* play */
gst_element_set_state(pipeline, GST_STATE_PLAYING);
g_main_loop_run(loop);
/* clean up */
gst_element_set_state(pipeline, GST_STATE_NULL);
gst_object_unref(GST_OBJECT(pipeline));
g_main_loop_unref(loop);
while (1)
{
sleep(INT_MAX);
}
}
Is there any other plugin that can replace the existing plugin and reduce CPU usage?
Can anyone help me? Thank you very much