Last update : September 13, 2013

I use the following FFmpeg scripts to create or convert videos with FFmpeg to host them on the Synology DiskStation :

1. one image to video (15sec, 25 fps, AVC, mp4 container)

ffmpeg ^
-loop 1 ^
-f image2 ^
-i folder/imagename.png ^
-r pal ^
-vcodec libx264 ^
-t 15 ^
output_myvideo.mp4
pause


2.  image sequence to video with good quality (15sec, 25 fps, AVC, profile Baseline@L3.1, 1 Ref Frame, Chroma subsampling 4:2:0, mp4 container, start at image xxx, animation, preset very good quality, constant rate factor = 20)

ffmpeg ^
-f image2 ^
-start_number 1113 ^
-i folder/imagename_%%05d.png ^
-r pal ^
-vcodec libx264 ^
-crf 20 ^
-preset veryslow ^
-profile:v baseline ^
-level 3.1 ^
-refs 1 ^
-pix_fmt yuv420p ^
-tune animation ^
-t 15 ^
output_myvideo.mp4
pause

3. add audio stream to a mute video (15sec, AAC-LC, 48Kbps bitrate, 44.1 Kz sampling, one channel)

ffmpeg ^
-i folder/mymutevideo.mp4 ^
-i folder/mysound.flac ^
-vcodec copy ^
-acodec libvo_aacenc ^
-ar 44100 ^
-ab 48k ^
-ac 1 ^
-t 15 ^
output_mysoundvideo.mp4
pause


4. change video container

ffmpeg ^
-i folder/myvideo.mp4 ^
-vcodec copy ^
-acodec copy ^
output_mynewvideo.flv
pause


5. change framerate (stretch super8 film, digitized with 25 fps, to original framerate 18 fps)

ffmpeg ^
-i input01.avi ^
-target pal-dv ^
-vf "setpts=25/18*PTS" ^
output01.avi
pause