<div dir="ltr"><div class="gmail_default" style="font-size:small">Great tip. I have added this gem to the manual at the end of the Background Rendering section as seen below.<br></div><div class="gmail_default" style="font-size:small">Except $ cat ~/tmp/brender* | ffmpeg -f image2pipe -i - -c:v copy brender.mov did not work for me.<br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><span style="font-family:monospace">Tip: If you have rendered your whole project with File format set to JPEG and<br>there are no missing numbers in the sequence, you can create a video from that<br>sequence outside of CINELERRA-GG. For example, if using the default output so<br>that your files are named /tmp/brender000000, /tmp/brender000001, ... in a<br>window, you would type:<br><br>ffmpeg -f image2 -i /tmp/brender0%5d -c:v copy brender.mov<br><br>which would create the video file brender.mov - be sure to delete existing brender<br>files before creating a new sequence to ensure there are no missing numerical<br>values in the sequence.</span><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jul 28, 2021 at 7:16 AM Andrew Randrianasulu via Cin <<a href="mailto:cin@lists.cinelerra-gg.org">cin@lists.cinelerra-gg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>On Wednesday, July 28, 2021, Andrew Randrianasulu <<a href="mailto:randrianasulu@gmail.com" target="_blank">randrianasulu@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">While working on EDL support I noticed old Adobe Premiere (4.0, 4.2) had interesting mode where you can output .mov from pre-rendered (with effects, transitions, etc) workarea. In CinelerraGG you can get similar effect by setting background render to jpeg, making sure your whole project got its preview (red bar) rendered, then quit cin and execute something like this:<div><br></div><div>$ ffmpeg -f image2 -i ~/tmp/000%3d -c:v copy brender.mov</div></blockquote><div><br></div><div>actually, for non-0 started sequence I found this line works better (set brender file to your_path/brender, it will be numbered automatically) </div><div><br></div><div><br></div><div>rm ~/tmp/brender* before each use</div><div>{ do your stuff in cin } </div><div> $ cat ~/tmp/brender* | ffmpeg -f image2pipe -i - -c:v copy brender.mov</div><div><br></div><div>at least with ffmpeg 4.4 it will refuse to update your existing brender.mov file unlike image2 demuxer... so delete it if not needed or set different output filename. </div><div><br></div><div>from <a href="https://superuser.com/questions/624567/how-to-create-a-video-from-images-using-ffmpeg" target="_blank">https://superuser.com/questions/624567/how-to-create-a-video-from-images-using-ffmpeg</a></div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><br></div><div>it will copy your background render jpegs into mov without re-encoding them</div><div><br></div><div>you might want to add '-r' too for specific framerate. </div><div><br></div><div>I wonder if libavformat-based mov muxer can be re-introduced for such task .. (not feature request, just thinking). And may be 'delete brender files' button (there seems to be some space in preferences/performance GUI window..) </div>
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