[lavf] Too many packets in the demuxer packet queues:
[lavf] video/0: 3723 packets, 157288000 bytes
[lavf] audio/1: 0 packets, 0 bytes
The message "Too many packets in the demuxer packet queues" typically indicates that MPV is buffering too much video data in memory, which can happen due to slow or delayed video decoding, large files, or a mismatch between the video’s bitrate and the system’s processing capabilities. The video buffer grows because MPV can't process the video quickly enough. You can try reducing the buffer size or adjusting the cache-related parameters in MPV to avoid this issue, such as:
--demuxer-max-bytes=10485760 --demuxer-max-back-bytes=10485760