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google-coral / example-object-tracker

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Saving output to file instead of display device (DevBoard) #9

Open acirulis opened 3 years ago

acirulis commented 3 years ago

I am new to GStreamer, and cannot find a correct way to save output to file instead of display device on Coral DevBoard. While using Raspberry Pi and USB Accelerator I managed to save output file successfully but have no luck with DevBoard and OpenGL elements in the pipeline:

I modified output queue from:

        PIPELINE += """ ! decodebin ! glupload ! tee name=t
            t. ! queue ! glfilterbin filter=glbox name=glbox ! {sink_caps} ! {sink_element}
            t. ! queue ! glsvgoverlaysink name=overlaysink
        """

to

        PIPELINE += """ ! decodebin ! glupload ! tee name=t
            t. ! queue ! glfilterbin filter=glbox name=glbox ! {sink_caps} ! {sink_element}
            t. ! queue ! gldownload ! videoconvert ! x264enc ! mp4mux ! filesink location=output.mp4
        """

but am now receiving error and video is not recorded: 

** (detect.py:8003): CRITICAL **: 20:08:07.765: gst_video_frame_map_id: assertion 'info->finfo->format == meta->format' failed

Appreciate any advice.

zdavatz commented 3 years ago

Yes, I am seeing the same problem.