![]() ![]() ![]() When I subtitle there tend to be quite many repeat words and phrases (e.g Names or Idiom). Thank you for the continued work on Subtitle Edit. If you then edit the style without editing the name, when you re-save the subtitle file, Subtitle Edit also drops the space from the style name, so the subtitles go back to working properly again.įor Sub Station Alpha subtitles, the space after the first word is dropped as soon as the style is created (or the subtitle file is first saved), so even though the style mightn't have the expected name, it doesn't break functionality. ![]() The above only happens when first creating/naming a style. When saving the subtitle file, for the individual subtitles, it also drops the space.ĭialogue: 0,0:22:54.82,0:23:01.12,Magnificent,0,0,0,Subtitle text. When creating a style and giving it a multi-word name (ie Magnificent New Style), Subtitle Edit drops everything after the first space, so "Magnificent New Style" becomes "Magnificent ". Since you didn't post Clip004.mp4 and Rendered_track_001.mp4, I used synthetic pattern for testing:įfmpeg -y -f lavfi -i mandelbrot=size=1920x1080:rate=25 -video_track_timescale 25 -t 5 Clip004.mp4įfmpeg -y -f lavfi -i testsrc=size=1920x1080:rate=25:duration=5 -video_track_timescale 25 Rendered_track_001.Just reporting a bug (I assume) with naming Advanced Sub Station Alpha styles (I'm using Subtitle Edit 3.5.2 on XP). It's hard to tell if it's exactly what you want, but I hope it is close:įfmpeg -y -i Clip004.mp4 -i Rendered_track_001.mp4 -filter_complex " :s=1920x1080:r=25:d=1,format=rgba format=rgba xfade=transition=fade:duration=2:offset=0.5,format=rgba overlay=shortest=1" -map "" -c:v vp9 -c:a copy test.webm filter_complex " :s=1920x1080:r=25:d=1,format=rgba.Īlphamerge have no effect because vp9 codec does not support transparency.įor testing video with transparency, we may use libvpx-vp9 codec and -pix_fmt yuva420p. The solution is using color filter, instead of lavfi: It looks like -f lavfi -i :s=1920x1080:r=25:d=1 doesn't produce a transparent video. I also tried to use alphaextract and alphamerge like this ffmpeg -f lavfi -i :s=1920x1080:r=25:d=1 \Īlphaextract alphamerge" \īut it's fail with error The following filters could not choose their formats:Ĭonsider inserting the (a)format filter near their input or output.įailed to inject frame into filter network: Input/output errorĮrror while processing the decoded data for stream #2:0 filter_complex " xfade=transition=fade:duration=2:offset=0.5 \ But on the overlaying step transparent doesn't work. I already tried to use for the Empty places input with transparent color. I need to render that tracks to one track with ffmpeg.įor the "Track 001" I can "concat" clips to one track without any problem.īut the question is how I should concat clips for the "Track 002"? The "Empty" places must be transparent for the overlaying on the 3 step.
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