Mainconcept Reference Codec Vlc Download For Mac


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Based on the above symptoms of VLC HEVC 4K playback problem, here below lists out several simple yet effective solutions for your reference. One thing you need to know is that there isn't a perfect solution able to solve all the VLC HEVC playback issues. So you're suggested to make concrete analyses of concrete problems. Make choice from various solutions. No need to try one by one. Cuz your time is your life.

1. Check Your HEVC Video Format

Firstly, right click your HEVC video file to check what video format your HEVC video is: .mp4, .avi or .mkv. If your HEVC 4K video file is formatted by .mkv, please download MKV codec your VLC needs before HEVC 4K playback. Because sometimes, your VLC player won't play MKV files due to the lack of MKV codecs.

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2. Check Your Computer Hardware Configuration

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Your computer might do a great job when it's used to play H264 video with VLC. Yet, there is a big gap between H264 and H265 (HEVC). HEVC/H265 has a much higher demanding than H264 on your computer hardware configuration. If your CPU and GPU are not powerful enough, they can't support hardware h.265 decoding. That's why your HEVC/H265 4K 8K video is choppy and video-audio out of sync in VLC player.


MainConcept is a leading provider of video codec technology, ranging in offerings from software development kits, transcoding applications and plugins serving professional video production, multimedia, broadcast, digital signage, medical, and security industries. VLC for Mac OS X VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. VLC is a free and open source cross-platform multimedia player and framework that plays most multimedia files, and various streaming protocols.

To play HEVC 4K video on macOS or Windows PC, make sure your computer is armed with Skylake or later processor. If not, upgrade to high-end MacBook Pro/iMac or Windows PC. The higher of hardware configuration, the better HEVC 4K 8K UHD video playback will be.

3. Check HEVC Video Parameters

Another potential reason to cause VLC not playing HEVC video is the HEVC/H265 video parameter settings. Given that your HEVC video resolution is customized by yourself and the HEVC video aspect ratio doesn't keep the default 3:2, 4:3 or 16:9, then you might encounter VLC player problem with HEVC video playback.

Personally, I import HEVC 1080p video to play in VLC player, it can smoothly play this H265 1080p video with 16:9 aspect ratio. Yet, the case has changed since I customize this HEVC 1080p video resolution and aspect ratio to 17:7. There is no HEVC video, only audio left in VLC media player.

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If this is what you experience, please adjust H265/HEVC video resolution and aspect ratio back to its original settings. Trust me, VLC hasn't reached to the level that can handle all types of HEVC/H265 files.

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4. Convert H265/HEVC Video

As we've mentioned before, HEVC/H265 video can be formatted with .mp4, .mkv and .avi. Theoritically speaking VLC is compatible with HEVC MP4, HEVC MKV or HEVC AVI. Yet, take HEVC MKV for instance, VLC fails to play MKV HEVC video as long as it loses one or several MKV codecs. In such case, resorting to a solid HEVC video converter to convert HEVC/H265 video is the best option for you.

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To convert HEVC/H265 video, MacX Video Converter Pro makes an impressive showing, with 320+ video and 50+ audio codecs supporting strength to let you losslessly convert any HEVC/H265 video to your VLC or Windows/Mac supported formats:

  • ● Convert 1080p HEVC to 4K HEVC video, 720p HEVC to 4K HEVC video or vice versa.
  • ● Losslessly convert HEVC MKV video to HEVC MP4 container video for smooth playback on VLC without MKV codec issues.
  • ● Convert H265 to H264, MPEG-4, VP9, MP4, MOV, AVI, MKV, WMV or iPhone XS/XR/X, iPhone 8 Plus/8/7/6s/6/Plus, iPads, Android for better compatibility with almost all of your devices.