On Fri, Jul 24, 2015 at 16:02:22 -0700, Michael Nolan wrote: > do things like overlay, scale and trim videos, render text, render images, [...] > The biggest issue that I have is that the application that I run has to run > ffmpeg multiple times, thus re-encoding the video(s) and making the end > video look much lower quality than the original content. The original > videos are .webm and encoded using QTmuxingAppLibWebM-0.0.1.
You say it "has to". Could you elaborate? > Is there any way that I can help prevent this sort of thing or is there any > existing tooling for taking a series of edits and running them in one > command (meaning I don't have to re-encode multiple times)? Not if it "has to". You didn't give us examples of what you are doing - full command lines for the chain of edits - so I can only guess you are basically using ffmpeg's filters (in the widest sense) to do these edits. If so, you can chain your filters to a filterchain or a complex filter. $ ffmpeg [...] -vf filter1=a=a1:b=b1,filter2=c=c1:d=d1 [...] $ ffmpeg [...] -filter_complex "[0:v][1:v]filter1=...[outv];[0:a]filter2[outa];[outv][2:v]overlay" [...] Please show us your commands. Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
