View Issue Details

IDProjectCategoryView StatusLast Update
0000252Cinelerra-GG[All Projects] Bugpublic2019-06-28 14:57
ReporterMatN Assigned To 
Status newResolutionopen 
PlatformX86_64OSMintOS Version19.1
Product Version 
Target VersionFixed in Version 
Summary0000252: Audio problems using 4K HDR sample file

Cin 2019-05. When loading as ¨replace current project¨ 4K HDR sample file ¨¨, I noticed the following:

  1. There is a very clear echo on the audio, which is barely noticeable when playing the same file using VLC.
  2. The audio is TrueHD 8 channels, according to VLC 3F2M2R/LFE at 32 bits. Cin´s resources window does show 8 channels, and TrueHD, but bits are ¨unknown" . Isn´t that in the file?
  3. After loading, the cin main window has 8 channels. Yet Settings->Format shows 6. You can change it there to 8, but I thought that the ¨replace current project¨ option would set that according to the source material? Is this a bug?
  4. I see no mentioning in the manual about 7.1 audio, only 5.1 .

I´m not sure is any of items 2-3 are related to the too-loud echo. using HD device ¨none" or ¨vaapi¨ made no difference for the echo.

On another (video) note, the input is HDR BT2020, profile HEVC Main 10 . Yet after loading the profile, in Settings-Format the color model is RGBA 8-bit. To handle a source with 10 bits, shouldn´t the format for a HDR input file not be set to RGBA-FLOAT when loading as ¨replace current project¨?
Also, when playing the file, the picture in the compositor is bleak, but the same file in VLC or mpv shows a normal-contrast picture. I don´t have a HDR-capable monitor so cannot test what that effect would be; but if VLC/mpv can map it to something natural looking, should not cin do the same?

Steps To Reproduce

See description

TagsNo tags attached.


There are no notes attached to this issue.

Issue History

Date Modified Username Field Change
2019-06-28 14:57 MatN New Issue