uftrace for GStreamer

This page is partially copied from https://gstreamer.freedesktop.org/documentation/tutorials/index.html?gi-language
For more detail reference the page.

Make sure you have superuser(root) access rights to install GStreamer

1. Download prerequisites

apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio

2. Download GStreamer

git clone https://gitlab.freedesktop.org/gstreamer/gst-docs

3. Build the tutorials

$ gcc -pg basic-tutorial-1.c -o basic-tutorial-1 `pkg-config --cflags --libs gstreamer-1.0`

3. Record basic-tutorial-1.c

$ uftrace record -P . basic-tutorial-1

4. Replay output

$ uftrace replay
# DURATION     TID     FUNCTION
            [ 15661] | main() {
   5.788 ms [ 15661] |   gst_init();
   1.110 ms [ 15661] |   gst_parse_launch();
 741.006 us [ 15661] |   gst_element_set_state();
   0.593 us [ 15661] |   gst_element_get_bus();
   3.114  s [ 15661] |   gst_bus_timed_pop_filtered();
            [ 15661] |   gst_message_unref() {
   2.987 us [ 15661] |     gst_mini_object_unref();
   3.872 us [ 15661] |   } /* gst_message_unref */
   0.808 us [ 15661] |   gst_object_unref();
  60.858 ms [ 15661] |   gst_element_set_state();
 311.514 us [ 15661] |   gst_object_unref();
   3.183  s [ 15661] | } /* main */

5. uftrace tui

TOTAL TIME : FUNCTION
    3.183  s : (1) basic-tutorial-1                                                                                           
    3.183  s : (1) main
    5.788 ms :  ├─(1) gst_init
             :  │
    1.110 ms :  ├─(1) gst_parse_launch
             :  │
   61.599 ms :  ├─(2) gst_element_set_state
             :  │
    0.593 us :  ├─(1) gst_element_get_bus
             :  │
    3.114  s :  ├─(1) gst_bus_timed_pop_filtered
             :  │
    3.872 us :  ├─(1) gst_message_unref
    2.987 us :  │ (1) gst_mini_object_unref
             :  │
  312.322 us :  └─(2) gst_object_unref