Poor rendering quality for H264 in Resolve, on Win7
Posted: Tue Jul 18, 2017 4:34 pmHey everyone,
I'm new here and I have an issue rendering proper H264 files. I don't know if this has already been discussed here... if it was, then someone please point me to the right topic
I am running Davinci Resolve 12.5.5 lite. I have a simple timeline (HD, 23.976p) and I am trying to render a QT H264 at the same framerate and image size (HD). My video source files are DNxHD 115, but it does not actually matter, I have the same issue with all kinds of sources.
I set the quality of the render "Restrict to" 6.5 Mb/sec. Everything goes fine, but when I check the actual bitrate of the export, it's about half of what I wanted... (3.78 Mb/s).
So I try again with best automatic settings and I get 26.30 Mb/s.
Then I set the restricted version again, at 20Mb/s this time. I get the 3.78 Mb/s again! So no matter what restricted value I use, I still get no more than 3.78 Mb/s!
So my Resolve cannot set a target bitrate for H264 and stick to it. If I choose "best settings", well, that's not a custom bitrate, it's just what Resolve considers it's best for me
The fun thing is that if I try the exact same recipe on a Mac, it works fine
Hopefully someone has some suggestions?
Cristi
I'm new here and I have an issue rendering proper H264 files. I don't know if this has already been discussed here... if it was, then someone please point me to the right topic
I am running Davinci Resolve 12.5.5 lite. I have a simple timeline (HD, 23.976p) and I am trying to render a QT H264 at the same framerate and image size (HD). My video source files are DNxHD 115, but it does not actually matter, I have the same issue with all kinds of sources.
I set the quality of the render "Restrict to" 6.5 Mb/sec. Everything goes fine, but when I check the actual bitrate of the export, it's about half of what I wanted... (3.78 Mb/s).
So I try again with best automatic settings and I get 26.30 Mb/s.
Then I set the restricted version again, at 20Mb/s this time. I get the 3.78 Mb/s again! So no matter what restricted value I use, I still get no more than 3.78 Mb/s!
So my Resolve cannot set a target bitrate for H264 and stick to it. If I choose "best settings", well, that's not a custom bitrate, it's just what Resolve considers it's best for me
The fun thing is that if I try the exact same recipe on a Mac, it works fine
Hopefully someone has some suggestions?
Cristi