ffmpeg/avconv tricks and tips

ffmpeg_tricks.sh

# Break a video into multiple fixed length segments
~/libs/ffmpeg-2.6.2/ffmpeg -i test3.mp4 -acodec copy -vcodec copy -map 0 -f segment -segment_time 10 -reset_timestamps 1 clips/test3__%05d.mp4

# Decode and encode file to create accurate video segments
ffmpeg -i t2.mp4 -c:v libx264 -crf 22 -map 0 -segment_time 10 -g 10 -sc_threshold 0 -force_key_frames "expr:gte(t,n_forced*10)" -f segment -reset_timestamps 1 out%04d.mp4

# Iterate through all the files and run a command
base_dir=/media/chintaksheth/LB_Recordings_07/pilot/
for f in $(find $base_dir -wholename "*.mp4"); do
	new_dir=$(dirname $f)_clips/
	mkdir -p $new_dir
	file_name=${f##*/}  # extract the file name and extension from the entire path
	new_name=${file_name%.*}__\%05d.mp4  # extract only the file name without the extension
	/home/chintaksheth/libs/ffmpeg-2.6.2/ffmpeg -i $f -y -acodec copy -vcodec copy -map 0 -f segment -segment_time 10 -reset_timestamps 1 $new_dir$new_name
done