Play Failure on the Start

Problem

Play is failed and the player freezes at the first frame of the video.

Solution

Use the following procedure to debug.
  1. Make sure whether the correct plug-in is used. It may occur while the pipeline is created successfully, but using an incorrect plug-in. The following code blocks provide some examples of detecting its audio/video format.
    • gst-discoverer-1.0 4K_h265_hevc_30FPS.mkv
    • mediainfo 4K_h265_hevc_30FPS.mp4
    • ffmpeg -i 4K_h265_hevc_30FPS.mkv

  2. Try to play with the decodebin or the uridecodebin plug-in. They can always find the correct plug-ins and create pipelines automatically.

    The following list shows some example code blocks. 
    • gst-launch-1.0 filesrc location=4K_h265_hevc_30FPS.mkv ! decodebin ! kmssink driver-name=starfive force-modesetting=1
    • gst-launch-1.0 uridecodebin uri=file:///media/root/4K_h265_hevc_30FPS.mkv ! kmssink driver-name=starfive force-modesetting=1