View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000116 | Cinelerra-GG | Feature | public | 2019-01-17 18:41 | 2019-01-18 21:43 |
| Reporter | WPFilmmaker | Assigned To | PhyllisSmith | ||
| Priority | normal | Severity | minor | Reproducibility | N/A |
| Status | closed | Resolution | no change required | ||
| Product Version | 2018-12 | ||||
| Summary | 0000116: Add x265 to the default rendering options in ffmpeg | ||||
| Description | I know that users can manually add it, but it is not user friendly and trying to reduce the learning curve of Cinelerra it is always a good idea I think. Plus x265 is open so it would be nice to promote it (we already do that with ogg, xvid, webm and x264). I would like to request to add x265 to the default rendering options when using ffmpeg. According to ffmpeg: " ffmpeg has support for H.265 / HEVC encoding using the x265 encoder. Libx265 can offer around 25–50% bitrate savings compared to H.264 video encoded with libx264, while retaining the same visual quality. These gains will be most pronounced at resolutions of 1080p and higher" So definitively an improvement over x264. Some details: http://x265.org/ https://trac.ffmpeg.org/wiki/Encode/H.265 https://x265.readthedocs.io/en/default/presets.html | ||||
| Tags | No tags attached. | ||||
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WPFilmmaker, I am not sure which Linux distro you are using. Just wonder if you are aware of the special cinelerra10bit version (cinx) based on libx265 for openSUSE? https://www.cinelerra-gg.org/opensuse-package/ https://www.cinelerra-gg.org/features/ |
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x264 is the default ffmpeg rendering option because it is the most common. x265 is an existing choice that is not that difficult to get to. I ran a very small test comparison between x264 and x265 and the x265 took 3 times longer. When I ran the same test again using VALGRIND to watch for errors, x265 had a SEGV. However, there is a later version of x265 available and gg is checking that now and after using for a couple of days, if good, will get checked into before the end of the month builds. So there is some consternation about switching the default to x264 at this time but maybe it will be later. Especially because it uses more CPU. |
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@terje I am on Lubuntu, I had read about 10bit but didn't know it was based on libx265 @PhyllisSmith thank you! As Phyllis said x264 is the default option and I just happened to notice the lack of libx265. |
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There will be included in the end of the month builds, news and clarification about now being able to do 10-bit with x264 without having to use a special version. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2019-01-17 18:41 | WPFilmmaker | New Issue | |
| 2019-01-18 02:05 | terje | Note Added: 0000626 | |
| 2019-01-18 18:36 | PhyllisSmith | Assigned To | => PhyllisSmith |
| 2019-01-18 18:36 | PhyllisSmith | Status | new => assigned |
| 2019-01-18 19:33 | PhyllisSmith | Note Added: 0000629 | |
| 2019-01-18 20:17 | PhyllisSmith | Note Edited: 0000629 | |
| 2019-01-18 21:39 | WPFilmmaker | Note Added: 0000630 | |
| 2019-01-18 21:43 | PhyllisSmith | Status | assigned => closed |
| 2019-01-18 21:43 | PhyllisSmith | Resolution | open => no change required |
| 2019-01-18 21:43 | PhyllisSmith | Note Added: 0000631 |
