On Thu, Dec 1, 2016, at 03:00 PM, MRob wrote: > I'm exporting a video from an older Adobe Elements (Windows) with > intention to put it on the web (both H.264 and VP8). I exported using > Adobe's "DV AVI" which appears to be the most unmolested output format
DV is not a good choice: it's lossy and will mess up your width, height, aspect ratio, etc. Install UT video. UT video is a free and open compressed lossless format that works well as an intermediate format: http://umezawa.dyndns.info/archive/utvideo/?C=M;O=D Then restart Elements and export using that. Make sure Elements doesn't change the width, height, frame rate, etc (I recall Adobe Media Encoder doing that often). Finally, re-enode the intermediate file with ffmpeg. [...] > But from reading that mailing list post and the error message text, it > sounds like adding "-pix_fmt yuv420p" affects the output. I do not need > to retain compatibility with terribly old devices (though I am using > baseline level 3.0), so I wanted to ask if there is a better way to > handle conversion in this case. You'll need yuv420p. Most non-FFmpeg based players and various devices don't support anything else. > There is also an option in Elements to export MPEG H.264 ("1080i 25" or > "1080i 30", providing profiles main/high, levels 4/4.1, default 1 pass > bitrate of 20, etc), but I don't understand all their settings and I > trust ffmpeg to do a better job and I don't want to encode twice if > possible. I probably wouldn't use it either. > Here are the options I'm using for H.264 conversion: > -movflags +faststart -codec:v libx264 -preset veryslow -profile:v > baseline -level:v 3.0 -codec:a aac You can omit -profile and -level if you don't care to support old devices, otherwise keep it if you want widest compatibility. > For VP8 conversion, I only get the first warning: > Guessed Channel Layout for Input Stream #0.1 : stereo > Otherwise, it completes without any errors. Ignore. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
