jliljebl
commented
1 week ago Hi,
melt is a MLT feature. MLT maintainers do not answser support requests on Issues but they did recently add a discussion feature: https://github.com/mltframework/mlt/discussions in which they may be interested in giving some pointers on using melt. They wont be answering any Flowblade related questions there.
If your rendering issues reproduce on melt your issue may be considered a MLT bug in which case they would open a issue for bug.
melt move.xml -consumer avformat:movie.mov f=mov acodec=pcm_s24le ac=2 vocodec=prores vprofile=2 vender=ap10 pix_fmt=yuv422p10le
I don't think MLT supports 10-bit color yet so maybe using some other pix_fmt could help.
I'm trying to render a long file. I found this article, which is helpful, since the GUI rendering system suddenly stops rendering (times out?) after 7 hours: https://github.com/jliljebl/flowblade/issues/327
Here's my issue. I've tried 3 times today to render a large file using the following:
melt move.xml -consumer avformat:movie.mov f=mov acodec=pcm_s24le ac=2 vocodec=prores vprofile=2 vender=ap10 pix_fmt=yuv422p10le
What then happens is the rendering begins, but... after an hour or more the file reached 34 GB and continued to increase. I pressed 'q' to quit the render. I opened the file, and after an hour or more of rendering this 34 GB file, only 9 minutes and 40 seconds of video had rendered. Furthermore, upon playback, the quality is jumpy and not smoothly playable (though that could be because I quit the rendering abruptly).
Upon hitting 'q," I did get the message: "Timestamps are unset in a packet for stream 1. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly."
Can you please tell me what arguments I can add to allow the file to properly render? I need to render a high quality version of this file, and feel stuck, since I don't know why it's not properly rendering. I'm inputting the arguments as they appear in the "Render using args" box. The render does happen, but the render (seemingly) continues forever. A 34 GB file for nine minutes is bizarre to me. There has to be something I'm missing. Please help.