Support Communities / Mac OS & System Software / OS X Mavericks. Question: Q: Codec IMM4 VCM on a mac. Hi, there is some ways to play a video with codec IMM4 VCM on a mac? Thanks Antonio. Unfortunely VLC says that it doesn't support IMM5 or IMM4. Dec 14, 2013 8:44 AM.

Is it possible to play MP4 file in the VLC media player? In most case, the answer is yes but things happen that you can't play MP4 files in the VLC media player, just like the user feedback below.

'I have an MP4 video which I can play with Windows Media Player, but VLC couldn't play it. I tried re-installing the latest VLC but no luck.'-A user from videohelp.com

MP4 is a video file format with multimedia container. Mostly every different MP4 files are encoded with the different video codecs. If you are using a perfect video file which is not corrupted then the problem can be related to video codec. You can solve this by trying other video player or converting MP4 file to other VLC supported format using MP4 to VLC converter - Wondershare UniConverter (originally Wondershare Video Converter Ultimate) software on Mac or Windows.

Part 1. 3 Main Reasons and Solutions for VLC Cannot Play MP4 Files

Reason #1: Limitation on Hardware Decoding for MP4 format, especially for subtitles

Solution: Go to VLC on your computer and disable hardware video decoding.

Go in the Tools > Preferences, then click Show all Setting from the bottom left side.

Now move cursor to 'Input/Codecs' > 'Video Codecs' > 'ffmpeg', here choose Disable for 'Hardware Decoding' option. Now restart your VLC and play that MP4 file again.

Reason #2: Wrong video settings in preferences

Solution: Go to Tools > Preferences on your computer in VLC and check the following settings by turn.

Check the box 'Enable Video' if it is unchecked previously.

Check the box 'Windows Decorations'.

Click on Output and select X11 video output (XCB) as your video output.

After above settings click Save button and try to play MP4 files now.

Reason #3: Too old version for VLC

Solution: VLC is a free media player available from VideoLAN, which regularly updates program to support more formats so as to provide a better user experience. To solve 'VLC Won't Play MP4 video files' issue, you can check whether you are using the latest version of VLC. Chinese translation pinyin download for mac. If not, just update the program by visiting VLC official site for download.

Part 2. How to Solve 'VLC Not Playing MP4' Issue

Wondershare UniConverter (originally Wondershare Video Converter Ultimate) is exceptional software to solve out “VLC not playing MP4” issue. This software allows you to convert MP4 videos to VLC supported format in few clicks only. It's not only a converter but a powerful video player, which plays any format video. Moreover, Wondershare UniConverter (originally Wondershare Video Converter Ultimate) acts as a downloader, DVD burner and media streaming software, which offers a complete video solution.

Wondershare UniConverter (originally Wondershare Video Converter Ultimate)- Your Complete Video Toolbox

• Convert MP4 video formats to 1000+ formats, like AVI, MKV, MOV, MP4, etc.
• Convert to optimized preset for almost all of the devices.
• Play videos in any format with its inbuilt video player.
• Edit, enhance and personalize your videos file.
• Download/record videos from 10000+ online video sharing sites.
• Stream videos from your computer to other devices including Apple TV.
• Supported OS: Windows 10/8/7/XP/Vista, Mac OS 10.15 (Catalina), 10.14, 10.13, 10.12, 10.11, 10.10, 10.9, 10.8, 10.7, 10.6

Step 1 Launch Wondershare Video Converter

Install the program on your computer and run it. Below is interface of Wondershare UniConverter (originally Wondershare Video Converter Ultimate) Software.

Step 2 Add MP4 Files to Wondershare VLC Converter

Now browse MP4 files from your computer to convert them in the VLC supported format. Click on Convert tab in the software interface and then you can browse files by clicking Add Files button or by dragging or dropping way.

Step 3 Preview Imported Videos

After selecting your file Wondershare UniConverter (originally Wondershare Video Converter Ultimate) will start adding files. Once files are added you can see their thumbnail displayed as the screenshot shows.

Step 4 Select Output Format

Now you have to choose the output video format. You can choose it by clicking on the icon from the Target box, and then choose the format you want to convert to.

Step 5 Convert MP4 to VLC Format

Click Convert All button in the bottom right to start MP4 conversion immediately, and you can see the purple progress bar clearly. When the conversion ends, you can find the converted file under the Converted tab.

Part 3. 4 Common FAQ Tips for VLC

Question #1: Is it possible to convert media files to other format using VLC itself

Answer: Yes, just go in the Media > Convert/Save and Add the file that you'd like to convert, select format and then click on Start button. But note that only a few formats conversion are supported by VLC itself.

Question #2: Can I play online videos directly in VLC

Answer: Yes, you can directly play online videos by adding their URLs. Click on Media>Open Network Stream and click on Network tab, then copy and paste URL of video from your browser and press Play button.

Question #3: Can I record webcam video with VLC

Answer: Yes, just click on Media>Capture Device and select Direct Show from the Capture Mode drop-down menu, select Video and audio device where you want it to capture, click on Play button now and it will start recording.

Question #4: How to control VLC remotely from a browser

Answer: You can enable this feature by going in Tools>Preference and then click on the Radio button in the Show Setting option. Now click on the Interface>Select Main Interface and Here Check the option Web check box. After checking on Web check box click on the interface>Main>Lua and choose a password. Now this feature will be enabled and you can control your VLC with browser on mobile or laptop. And to use this features in your browser, please type Localhost:8080, then enter the password which you choose while setting up. Now it will display VLC media player in your browser.