To replicate: on RPi4
wget potter-700.vp7
Rename to potter-700.vp7.wmv or mkv
Try and play - Instant reboot.
2019-11-02 12:14:31.202 T:2703336304 NOTICE: CDVDVideoCodecFFmpeg::Open() Using codec: On2 VP7
2019-11-02 12:14:35.137 T:3011383312 NOTICE: VideoPlayer::OpenFile: /storage/videos/potter-700.vp7.wmv
2019-11-02 12:14:35.145 T:2881561456 NOTICE: Creating InputStream
2019-11-02 12:14:35.148 T:2881561456 NOTICE: Creating Demuxer
2019-11-02 12:14:35.169 T:2881561456 NOTICE: Opening stream: 0 source: 256
2019-11-02 12:14:35.169 T:2881561456 NOTICE: Creating video codec with codec id: 179
2019-11-02 12:14:35.169 T:2881561456 ERROR: CMMALVideo::Open : Video codec unknown: b3
2019-11-02 12:14:35.169 T:2881561456 NOTICE: CDVDVideoCodecFFmpeg::Open() Using codec: On2 VP7
2019-11-02 12:14:35.173 T:2881561456 NOTICE: Creating video thread
2019-11-02 12:14:35.173 T:2881561456 NOTICE: Opening stream: 1 source: 256
2019-11-02 12:14:35.173 T:2881561456 NOTICE: Finding audio codec for: 86081
2019-11-02 12:14:35.176 T:2863637360 NOTICE: running thread: video_thread
2019-11-02 12:14:35.176 T:2881561456 NOTICE: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder on2avc
2019-11-02 12:14:35.176 T:2881561456 NOTICE: Creating audio thread
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Video plays on X86 - K17 & K18 and VLC