![]() I truly believe that the ability to accomodate some of these advanced ffmpeg tweaks and settings into the Export functionality would be something to be considered because there is a definite visual improvement from a few minor ffmpeg tweaks. ![]() ![]() acodec libfaac -ab 112k -ac 2 -s 640x480 -vcodec libx264 -vpre hq -vpre ipod640 -crf 21 -bt 256k -f ipodĪlso it is an important thing to note that the iPod/iPhone example above is using "-crf" Constant Rate Factor which is a much better scenario for one-pass H.264 encoding.Ĭertainly not that Openshot is bad, it is an incredible accomplishment, nor am I trying to boast about one preset over another, these are very common ffmpeg options and I'd like to see them available in Openshot. target ntsc-dvd -bf 2 -flags ildct+ilme -f mpeg2video %Īdditionally Openshot exports for an iPod at TV screen resolution are very blocky and pixelated at the stock "low" bitrate setting of 1.25mb/s which is a very high bitrate for an H.264 portable preset, the following ffmpeg iPod WinFF preset gives incomparably better visual quality at a lower bitrate: xml files and am not 100 percent sure how the syntax works or what the availability is of advanced ffmpeg options within the MLT framework.įor instance using the following ffmpeg pipe command from Cinelerra (video rendering only) is giving me far better DVD output quality and interlaced field handling than the standard Openshot export: I have muddled around in the Openshot preset. I absolutely am a super-fan of Openshot but I have to admit to being a little troubled by the quality of output specifically for MPEG-2 DVD and H.264 for portable devices. I am by no means an ffmpeg expert but my first open-source gig was writing many of the presets that come included with "WinFF". I posted this originally at the user forum but thought it made more sense here, I will remove my post at the user forum.
0 Comments
Leave a Reply. |