ffmpeg scripts

ffmpeg_scripts.sh

# Screencast on OSX

ffmpeg -r 30 -f avfoundation -capture_cursor 1 -capture_mouse_clicks 1 -i "1:0" out2.mp4

# Framerate 30
# Cursors + Clicks
# "1:0" -> first screen and microphone

# list all devices for above
ffmpeg -f avfoundation -list_devices true -i ""


## MACBOOK PRO Retina problems
# Using retina screen, I had a lot of microphone stutter, seems to be the pixel format
# force with -pix_fmt yuv420p
ffmpeg -r 30 -f avfoundation -capture_cursor 1 -capture_mouse_clicks 1 -i "1:0" \ 
  -pix_fmt yuv420p  -preset veryfast -c:v libx264 -profile:v main -level 4 screen.mp4

# show video information
ffprobe -show_format -print_format json $1 2> /dev/null

# okish conversion for older videos:
# * keep meta data
# * libfaac, also aac or faac, depending on what is available
ffmpeg -i INPUT_FILE -preset veryfast -c:v libx264 -profile:v main -level 4 -c:a libfaac -q:a 100 -crf 25 -map_metadata 0 OUTPUT_FILE


# list all encodes
ffmpeg -encoders


## Reverse GoPro at bike handler - merge all video parts and turn video 180deg
## used all *.MP4 files in current folder
ffmpeg -f concat -safe 0 -i <(for f in ./*.MP4; do echo "file '$PWD/$f'"; done) -metadata:s:v rotate="180" -c copy output.MP4