QtMultimedia on GStreamer 1.0: how to dump .dot graph of my application

[maurofaresoftware.it]

Hi all.
I need to get the Dot graph of the gstreamer pipelines created in my Qt/QML application.

The application plays a video and an audio.
The application runs on a Imx6dl sabredsd board, using imx-gst acceleration when it can.

I try the environment variable GST_DEBUG_BIN_TO_DOT_FILE=/tmp but I find nothing in folder /tmp

[SGaist]

Hi,

AFAIK, that's a define.

You want to use GST_DEBUG_DUMP_DOT_DIR.

Note that this requires an active use of the macros like explained there.

Set this environment variable to a path to turn on all GST_DEBUG_BIN_TO_DOT_FILE or GST_DEBUG_BIN_TO_DOT_FILE_WITH_TS calls and have the dot files in that location.

This will only work if the application in question makes these calls in strategic places (like when the pipeline state changes or an error occurs). gst-launch-1,0 is one such application.