You don't want the smallest file size here. Smallest file size means highest compression. And as you want to put this clip as source media in a premiere project I guess you'd even like to have no compression (-artifacts) to get highest quality and fast timeline scrubbing.

Don't care about 17MB files.

Alpha channel makes only sense with intermediate codecs (like ProRes). You need these in the editing process. When you're exporting a finished project you don't need it anymore. h.264 does not support it.

Good news! I tested it and it was already working with 2.2.

It is important to use a codec / encoder that supports alpha channels (like ProRes) and a pixel format that contains an alpha channel (YUVA - A=Alpha).

Works for me as you can see.

I expected that question.

These are the pixel formats available: https://raw.githubusercontent.com/Jam3/ae-threej…DKPixelFormat.h

So if there is not color space mentioned... what color space is it in?

Lets look at the whole processing chain:

• You'd like to export with yuv420 10bit and hevc_nvenc => using "p010le"
• Version 2.2 requested the frame data in either:
  • Format: PrPixelFormat_YUV_420_MPEG4_FRAME_PICTURE_PLANAR_8u_709 (bt709 selected)
    Input: bt709
    Output: bt709 or bt2020
  • Format: PrPixelFormat_YUV_420_MPEG4_FRAME_PICTURE_PLANAR_8u_601 (all other selections)
    Input: smpte170m
    Output: smpte170m
    • 1. Issue: It requested 8bit and converted it up to 10bit
    • 2. Issue: It used bt601 and converted it to bt2020
• Version 2.3 changed this behaviour to:
  • Format: PrPixelFormat_VUYX_4444_32f (BT601 selected)
    Input: bt601
    Output: unspecified (or set by setparams / colorspace)
  • Format: PrPixelFormat_VUYX_4444_32f_709 (all other selections)
    Input: bt709
    Output: unspecified (or set by setparams / colorspace)

• Premiere will render in 32bit float
• Connector converts it to yuv444 (16 bit)
• FFmpeg converts it to p010le

So it's more or less clear why this is not working:

1. Using 32bit float is a good (but slower) decision because we are downscaling, not upscaling.
2. I somehow need to get the information what PrPixelFormat_VUYX_4444_32f means. Is it bt601? Or does it depend on the source? How to identify this? And what is the color range?

I have to admit the 10bit (and higher) modes really need improvement.

But all changes need to be done in the connector, not in the voukoder itself. It is about how to get the right information from Premiere.

Hast du mal probiert beim Start von VEGAS die Tasten Strg+Shift gedrückt zu halten und dann alle Einstellungen zu resetten?

Did you do a MediaInfo (https://mediaarea.net/en/MediaInfo) of both files to compare them with each other?

In my case:

General
Complete name                            : C:\Users\Daniel\Desktop\test.mp4
Format                                   : MPEG-4
Format profile                           : Base Media
Codec ID                                 : isom (isom/iso2/mp41)
File size                                : 23.7 MiB
Duration                                 : 7 s 424 ms
Overall bit rate                         : 26.7 Mb/s
Tagged date                              : UTC 2019-12-06 11:03:49
Writing application                      : Voukoder (Adobe Premiere)
TIM                                      : 00:01:09:24
TSC                                      : 60
TSZ                                      : 1

Video
ID                                       : 1
Format                                   : HEVC
Format/Info                              : High Efficiency Video Coding
Format profile                           : Main 10@L4.1@Main
Codec ID                                 : hev1
Codec ID/Info                            : High Efficiency Video Coding
Duration                                 : 7 s 417 ms
Bit rate                                 : 26.6 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 60.000 FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 10 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.214
Stream size                              : 23.6 MiB (100%)
Color range                              : Full
Color primaries                          : BT.2020
Transfer characteristics                 : HLG
Matrix coefficients                      : BT.2020 non-constant
Codec configuration box                  : hvcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 7 s 424 ms
Bit rate mode                            : Constant
Bit rate                                 : 96.0 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 87.3 KiB (0%)
Default                                  : Yes
Alternate group                          : 1

As Voukoder is using FFmpeg internally, maybe it would be a good idea to create an FFmpeg command line that creates a perfect video from your point of view.

Release Notes

IMPORTANT - PLEASE READ

Voukoder has been split up into two components starting with this release:

• The Voukoder Core component (this part)
• An application specific Connector module (i.e. for Premiere/MediaEncoder, After Effects or VEGAS)

Instructions

1. Uninstall all previously installed Voukoder related components from the control panel (esp. when upgrading)
2. Install Voukoder 2.3
3. Install an appropiate connector module

We are working on it to make this easier in the next versions. The separation was necessary for legal reasons but also offers new future possibilities.

Changes

• Introduced VEGAS Pro support
• Moved log and update information to the systray
• Logging path changed to %LOCALAPPDATA%\Voukoder\Logs
• Added video filters: Equalizer, SetParams and Colorspace
• Added FFmpeg logging to STDOUT (for troubleshooting)
• Added qmin and qmax encoder options for NVENC encoders
• Added 10bit export for hevc_qsv
• Removed lower bitrate limitation

Fixes

• Fixed audio isses when using 2-pass encoding
• Colors with ZScale filters were messed up (when using packed pixel formats)
• Advanced settings did not get loaded from stored x264/x265 settings
• The codec options did not get saved and loaded correctly
• Audio and video format changes did not get set correctly when changed (i.e. issues with FLAC)
• Fixed and improved working with various color ranges and color spaces
• Fixed handling unicode filenames

Notes

For using NVENC encoders driver version 436.15 or newer is required.

Glad to hear that!

Can you try to export with 48 kHz audio?

Encoder opus [Opus]:

General capabilities: delay small exp

Threading capabilities: none

Supported sample rates: 48000

Supported sample formats: fltp

Supported channel layouts: mono stereo

Please send the logfile. %LOCALAPPDATA%\Voukoder

You can try the latest 2.3rc2 build. It should be pretty stable now.

1. Uninstall Voukoder 2.2

2. Install https://github.com/Vouk/voukoder/…oder-2.3rc2.msi

3. Install https://github.com/Vouk/voukoder-….5.msi?raw=true

As far as I remeber this will be fixed with the 2.3 release. Should be out this weekend.

Released 2.3rc2

Fixes:

• Added "setparams" filter

For using NVENC encoders driver version 436.15 or newer is required.

2.3rc2 allows you setting different color space values using the "setparams" filter.

Hope that helps.

https://github.com/Vouk/voukoder/releases/tag/2.3rc2

Hast du es mittlerweile zum Funktionieren bekommen?

I was mistaken. It's the codec context I need to supply these values to. Still, they are unspecified by default and i guess we need to be able to set them somehow without any filters.

Not sure. As far as i know the filter gets applied to the video stream, not to the format container.

But it seems the container (i.e. mp4) settings are important here.

The thing is I need to specify these values when creating the muxer / format instance:

- matrix

- primaries

- transfer

They are "unspecified" by default. Which seems to be okay for all non-2020 color spaces.

Currently they will be only set when using the color space filter and this seems to be the issue. I need to think about a smart way to set these values even when not using any filter. But if a filter is used the filter settings will overwrite these values.

I'll implement it asap.

Did you try it with FFmpeg already?

Zitat von morphinapg

What we may need to support NVENC is the addition of the ispace, itrc, and iprimaries settings in the colorspace filter options.

You got it.