View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0000484||Cinelerra-GG||[All Projects] Feature||public||2020-08-02 05:24||2020-08-02 05:24|
|Platform||Ryzen 3700x||OS||Linux||OS Version||Devuan Beowulf|
|Target Version||Fixed in Version|
|Summary||0000484: H265 encodes: Difficult to control framerate of result|
|Description||I have been trying some encodes with H265 (ffmpeg), utilising the hi, med and lo options.|
Results (of a 1 minute video)
hi - 44.2 Mbps
med - 4.34 Mbps
lo - 1.5 Mbps
The video quality with 'lo' was really good, but when I tried h265lo on another project (source clips from same camera) the resulting frame-rate was increased to 8.701 Mbps, and the following test, 5.448Mbps, and then again 5.367Mbps.
I can't reproduce the 1500 Kbps with the 2nd project - and entering 150000 in the bitrate field does nothing to affect the output.
8, or 5 or 4 Mbps is not really low and it doesn't create small file sizes.
To me this is confusing. I want control of the bitrate in the output.
Actually I had similar confusing results with ffmpeg/ogg where setting the quality resulted in different bitrates each time, there was no standard output.
|Steps To Reproduce||Add clips to project|
Render settings : ffmpeg/mp4, h265-lo, 1500000 bps
check frame rate