Capture RaspiVid h264 to Matroska (.mkv)

save to mkv ~10mbps

• raspivid -hf -vf -t 0 -b 10000000 -o - | ffmpeg -i - -vcodec copy test.mkv

explanation

Raspvid

• -hf flip horizontal
• -vf flip vertical
• -t 0 indefinetly
• -b 10000000 10mbps bitrate
• -o -output to ffmpeg

ffmpeg

• -i - reads from raspivid
• -vcodec copy simple copying of video data
• test.mkv file name and the output matroska format