FastFlix

FastFlix is a simple and friendly GUI for encoding videos.

Download latest release from Github

FastFlix keeps HDR10 metadata for x265, which will be expanded to AV1 libraries when available.

It needs

FFmpeg

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Check out the FastFlix github wiki for help or more details, and please report bugs or ideas in the github issue tracker!

Encoders

FastFlix supports the following encoders if available:

| Encoder | x265 | NVENC HEVC | NVEncC HEVC | x264 | rav1e | AOM AV1 | SVT AV1 | VP9 | WEBP | GIF | | --------- | ---- | ---------- | ----------- | ---- | ----- | ------- | ------- | --- | ---- | --- | | HDR10 | ✓ | | ✓ | | | | | ✓* | | | | HDR10+ | ✓ | | ✓ | | | | | | | | | Audio | ✓ | ✓ | ✓* | ✓ | ✓ | ✓ | ✓ | ✓ | | | | Subtitles | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | | | | Covers | ✓ | ✓ | | ✓ | ✓ | ✓ | ✓ | | | | | bt.2020 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | |

✓ - Full support   |   ✓* - Limited support

Releases

View the releases for binaries for Windows, MacOS or Linux

You will need to have

ffmpeg

ffprobe

Running from source code

Requires python3.8+

git clone https://github.com/cdgriffith/FastFlix.git
cd FastFlix
python3 -m venv venv
. venv/bin/activate
pip install -r requirements.txt
python -m fastflix

HDR

On any 10-bit or higher video output, FastFlix will copy the input HDR colorspace (bt2020). Which is different than HDR10 or HDR10+.

HDR10

FastFlix was created to easily extract / copy HDR10 data, but as of sept 2020, only x265 support copying that data through FFmpeg, no AV1 library does.

VP9 has limited support to copy some existing HDR10 metadata, usually from other VP9 files. Will have the line "Mastering Display Metadata, hasprimaries:1 hasluminance:1 ..." when it works.

• rav1e - can set mastering data and CLL via their CLI but not through ffmpeg.
• SVT AV1 - accepts a "--enable-hdr" flag that is not well documented, not supported through FFmpeg.
• aomenc (libaom-av1) - does not look to support HDR10

HDR10+

FastFlix supports using generated or extracted JSON HDR10+ Metadata with HEVC encodes via x265. However, that is highly dependent on a FFmpeg version that has been compiled with x265 that has HDR10+ support. BtbN's Windows FFmpeg builds have this support as of 10/23/2020 and may require a manual upgrade.

If you add HDR10+ metadata file, make sure the encoding log does NOT contain the line

x265 [warning]: –dhdr10-info disabled. Enable HDR10_PLUS in cmake

HLG

FastFlix (v4.0.2+) passes through HLG color transfer information to everything except webp and GIF.

Dolby Vision

FastFlix does not plan to support Dolby Vision's proprietary format at this time.

Support FastFlix

Check out the different ways you can help support FastFlix!

License

Copyright (C) 2019-2021 Chris Griffith

The code itself is licensed under the MIT which you can read in the

LICENSE

Encoder icons for VP9 and AOM AV1 are from Wikimedia Commons all others are self created.

Various button icons from https://uxwing.com

Sample videos and thumbnail for preview image provided by Jessica Payne