MLT

melt prj.xml -consumer avformat:prj.mp4 \
 acodec=libmp3lame acodec=aac ab=128k \
 vcodec=libx264 vb=15M preset=slow apsect=16/9

melt prj.xml -consumer avformat:prj.mp4 \
 acodec=libmp3lame acodec=aac ab=128k \
 vcodec=libx264 vb=15M tune=film preset=slow apsect=16/9

melt prj.xml -consumer avformat:prj.mp4 \
 acodec=libmp3lame acodec=aac ab=128k \
 vcodec=libx264 mlt_profile=atsc_1080p_25 vb=15M

melt prj.xml -consumer avformat:prj.mp4 \
 acodec=libmp3lame acodec=aac ab=128k \
 vcodec=libx264 mlt_profile=atsc_1080p_50 vb=15M

see x264 --fullhelp for tune, preset params.

• http://www.mltframework.org/bin/view/MLT/ConsumerAvformat
• http://superuser.com/questions/358082/command-line-video-editing-in-linux-cut-join-and-preview
• http://bernaerts.dyndns.org/linux/74-ubuntu/214-ubuntu-stabilize-video-melt

From src

• http://www.mltframework.org/bin/view/MLT/BuildScripts
• https://github.com/mltframework/mlt-scripts