Problems while playing video files is common. But the situation turns annoying when you don’t know how to fix the issue and get back to playing the video. On one such occasion, you had upgraded to the latest macOS High Sierra version. After that, there have been issues with MP4 video. The MP4 file has playback problems on QuickTime.
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Well, you don't have to worry as there is a solution to every problem. Listed here are a few solutions to playback problems with QuickTime MP4 file on macOS High Sierra. If you have corrupt or damaged videos shot on iPhone, you can know how to repair corrupt iPhone video here.
- Install QuickTime 7 Pro:
Try installing QuickTime 7 Pro. This is because QuickTime 7 and above can handle MP4 files better. And, QuickTime 7 Pro is the best one to deal with .mp4 files. So, get QuickTime 7 Pro or any higher version on your macOS High Sierra and play MP4 files.
- Install QuickTime MP4 codec:
With it, you can convert H.265 to QuickTime player friendly H.264 MP4, MOV, M4V video on Mac OS Sierra/El Capitan with quality loss effortlessly. And it is available to customize the output resolutions to any size the users want and edit video file with trim, crop, add watermark, insert subtitles, split, merge and other options before conversion. Jun 19, 2018 Fast QuickTime Download for Windows and Mac. As an extensible multimedia software developed by Apple Inc., QuickTime is able to help users deal with a number of formats of digital video, audio, picture, panoramic image, etc. QuickTime was first developed in 1991, and the latest Mac version is QuickTime X, which is currently applied to Mac OS X Snow Leopard and newer. เรียกใช้ QuickTime Player 7 ใน Mac OS X Sierra, El Capitan, Yosemite, Mavericks. QuickTime Player เครื่องเล่นวิดีโอและเครื่องมือแก้ไขที่มาพร้อมกับ Mac เป็นเวลานานได้รับการยก. A powerful multimedia technology with a built-in media player, QuickTime Player for Mac lets you view Internet video, HD movie trailers, and personal media in a wide range of file formats. And it lets you enjoy them in remarkably high quality. What is QuickTime Player? It’s a multimedia platform. Video from your digital camera or mobile phone.
Install QuickTime MP4 codec pack. Sometimes when the required codec is not present in QuickTime, there are chances of the MP4 file not playing. So you need to download the required codecs to play the MP4 video on your macOS High Sierra.
- Play on A Different Media Player:
The next solution is to try to play the MP4 video on an alternate media player. You can try playing the video on VLC player or MPlayerX when you experience QuickTime MP4 playback problems on macOS High Sierra.
- Convert MP4 to QuickTime Supported Format:
If none of the above methods have worked out then the next thing to do is to convert MP4 file to QuickTime supported format. QuickTime plays most of the MP4 videos with MPEG2, MPEG-4, H.264, and so on. However, you would still come across error messages or experience playback issues while trying to play the MP4 file on QuickTime player; especially, if the MP4 file is having unsupported audio or video codec. So, in this case, the ultimate solution is to convert the unplayable MP4 file to QuickTime supported format.
Make sure you use reliable tools for converting MP4 file to QuickTime supported format. Mac high sierra download. Otherwise, the file can get corrupted.
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Above solutions should solve your QuickTime MP4 playback problems on macOS Sierra. Unfortunately, if you cannot fix the issue with the above solution or the converted MP4 video fails to play then you can try this last and effective solution.
RepairYour QuickTime MP4 Videos on MacOS High Sierra
In case, the MP4 video file is corrupted or damaged then none of the media players can play it successfully, including QuickTime. In such cases, you can make use of reliable video repair tools to fix corrupt QuickTime file and play it without any issue or playback error.
I suggest Remo MOV Repair tool to repair your corrupt MP4 videos. Don’t be confused by the name MOV repair, the software can also support MP4 video repair. Not just, corrupt MP4 files, it even fixes not opening, inaccessible, damaged MP4 and MOV video files in a short while. So, repair your QuickTime MP4 video which is showing playback issues on macOS High Sierra with this recommended software using below procedure.
Steps to Repair QuickTime MP4 Video on macOS High Sierra:
Step 1: Launch Remo Repair MOV, select your corrupt MP4 file along with a healthy MP4 video (for reference) and click on the Repair button.
Step 2: Preview and verify your repaired QuickTime MP4 file.
Step 3: Save the fixed MP4 video on a new location.
Additional Information: If any of your movie files are corrupted or inaccessible, and you are looking for a tool to repair it, then follow the link to repair movie file in just a few simple steps .
Play
Use the playback controls to play, pause, rewind, fast-forward, adjust volume, and take other actions. The controls appear when you move your pointer over the QuickTime Player window, and they hide when you move your pointer away.
To move quickly forward or backward through the timeline, swipe with two fingers on your trackpad, scroll with your mouse, or drag the handle in the timeline. You can also repeatedly click fast-forward or rewind to increase playback speed in increments.
To view a video in full screen, click the full-screen button or choose View > Enter Full Screen. You can also use split-screen view and stream videos to your Apple TV from QuickTime Player.
Record
QuickTime Player can record a movie from your camera, or record the screen of your iPhone, iPad, or iPod touch. It can also record audio from a microphone or record the screen of your Mac.
Record a movie
Movie recording works with your built-in camera and many external cameras. If you're using OS X Yosemite or later, you can also record the screen of any iOS device (iPhone, iPad, iPod touch) with a Lightning port and iOS 8 or later.
- Choose File > New Movie Recording.
- To change the recording settings, click the arrow next to the Record button. Then choose your camera or iOS device, microphone, and recording quality.
- To monitor audio while it's being recorded, use the volume slider.
- Click the Record button to start recording. Click it again to stop recording.
Record audio only
Audio recording works with your built-in microphone, external microphone, or other Core Audio-compliant audio device.
- Choose File > New Audio Recording.
- To change the recording settings, click the arrow next to the Record button. Then choose your microphone and recording quality.
- To monitor audio while it's being recorded, use the volume slider.
- Click the Record button to start recording. Click it again to stop recording.
Record your screen
Screen recording creates a movie of all or part of your Mac screen. For details, see How to record the screen on your Mac.
Open image sequence
QuickTime Player can create a movie from a sequence of still images. For example, you can use it to make a time-lapse or stop-motion movie from images you've already captured. Or try it with a batch of photos captured using burst mode on your iOS device.
- Make sure that your image files are named in alphanumeric order, which is the order that they will appear in your movie.
- Choose File > Open Image Sequence from the menu bar in QuickTime Player.
- Select the images to use for your movie. Use Command-A to select all images, or press and hold the Shift key or Command key when clicking to select specific images. Then click Choose Media.
- Choose a resolution, frame rate, and encoding, then click OK to create the movie.
Example: If you have 60 images and choose a frame rate of 60 frames per second, your movie will be 1 second long.
Edit
QuickTime Player offers several options for editing your movie, including trim, split, cut/copy/paste/delete, remove audio/video, and flip/rotate.
Trim
Use the trim function to remove unwanted parts of your movie.
- Choose Edit > Trim. The yellow trimming bar appears, with handles on each end.
- Drag the handles to select the part to keep. You can also take these actions:
- Click the Play button to play back the part selected.
- Move quickly through the part selected by swiping with two fingers on your trackpad, scrolling with your mouse, or dragging within the trimming bar.
- Choose View > Show Audio Track to identify quiet sections of the movie.
- Click Trim. All video and audio outside the trimming bar is removed. To undo the trim, choose Edit > Undo Trim.
Split
Use the split function to split your movie into multiple sections that can be manipulated further.
- Go to the point in the timeline where you want to make the split, then choose Edit > Split Clip.
- From here you can take several actions:
- Drag a clip before or after another clip.
- Move through a clip by swiping with two fingers on your trackpad or scrolling with your mouse. At any point in the timeline, you can choose Edit > Split Clip to split the selected clip.
- Choose View > Trim to trim the selected clip.
- Choose View > Show Audio Track to identify quiet sections of the clip.
- Select a clip and choose other editing commands from the Edit menu, such as Cut, Copy, Paste, and Delete.
- Click the Play button to play back all clips.
- Click Done. To see your clips again, choose View > Show Clips. To undo your splits, choose Edit > Undo Split Clip.
Cut, Copy, Paste, Delete
Use the Cut, Copy, Paste, and Delete commands from the Edit menu when you're editing split clips. If you're pasting a clip into another movie, you don't have to be editing clips in that movie: just go to any point in the timeline of the other movie, then paste the clip.
To quickly join movies together end to end, open the first movie, choose Edit > Add Clip to End, then select the other movie from the file dialog.
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Remove audio or video
![Quicktime Player For Mac Os Sierra Quicktime Player For Mac Os Sierra](/uploads/1/2/6/6/126611826/465819378.jpg)
- To remove the audio track from your movie, choose Edit > Remove Audio.
- To remove the video track from your movie, choose Edit > Remove Video.
Flip, rotate
Use the flip and rotate commands from the Edit menu when you're viewing a movie or editing split clips. These commands flip or rotate the entire movie or clip.
Share
After saving your movie, you can share it by Mail, Messages, AirDrop, YouTube, and other methods:
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- Open the file in QuickTime Player, then choose File > Share.
- Or open file in QuickTime Player, then click the Share button in the playback controls.
- Or Control-click the file in the Finder, then choose Share from the shortcut menu.
Learn more
Download Quicktime Player For Mac
- For more information, open QuickTime Player and choose Help > QuickTime Player Help.