For Mac users, you might have some personal 4K video downloaded from YouTube online sites or shot with your 4K devices recorders, when you try to open the 4K video with QuickTime Player - Mac's default media player, you may encounter the following problem:
"My friend gave me a 4K resolution video. When I used QuickTime player, the video is very sharp and some of the text in it can't be seen correctly. However when I used VLC to play it, it played without any errors and I can clearly see the text. I like the UI of QuickTime player, so is there any way to make it appear on QT?"
5KPlayer is a new and a pretty powerful video player in terms of playing the HD videos. Apart from playing 4K videos, 1080p HD videos smoothly, it also lets you play 5K videos, which is the biggest advantage of this player over other players.
Media Player Classic, also known as MPC, is an open source free media player, mimicking the look and feel of Windows Media Player 6.4. As a matter of fact, MPC on its own cannot play 4K UHD videos. It needs the help from K-Lite Codec Pack. To make things easier, you are suggested to download K-Lite Codec Pack full package which covers Media Player Classic. Despite that it can work on even the oldest computers, you still need a more powerful system to perform 4K playback.
The KMPlayer at first only serves for Windows users. But in April, 2016, a Mac alpha version was released for Mac users with OS X 10.6 or later operating system. It supports for a wide range of file formats and can play videos in superb quality, including 4K UHD. According to the description in its official site, the PC edition only works on Windows 2000/XP/Vista/7(32bit). If you need a 4K video player for Windows 10, 8.1 or 7, you'd better choose another program, such as 5KPlayer.
This very popular and well known video player now supports playback of files up to 4K in resolution. It supports DivX HEVC video with the HEVC plugin, as well as regular DivX and DivX Plus. DivX Player is promoted as a very high quality media player and is one of the most popular choices. Some of the unique features that are well worth mentioning with this software including the ability to quickly switch between subtitles in various languages. You can also easily flick through different soundtracks in order to hear features like the director's commentary, or the motion picture in another language when available.
If you fail to open certain 4K video with above listed free 4K video player or can't get a smooth 4K playback effect on above listed 4K video player, then it would be ideal for you to convert and compress unsupported 4K to QuickTime player most favorable QuickTime MOV format.
Here, you can get the job easily completed with our powerful 4K Video Converter for Mac - Pavtube Video Converter for Mac, Which has full support for all 4K container file format such as 4K AVI, 4K WMV, 4K MP4, 4K MKV, 4K FLV, 4K MOV, 4K TS, 4K MXF, 4K XAVC/XAVC S, etc and 4K compression codec like H.264, H.265, Prores. You can batch load multiple 4K video into the program at one time for converting to QuickTime player most favorable QuickTime mov files with super fast conversion speed and perfect output file quality.
Click "Convert" to let this smart converter start transcoding 4K to QuickTime .mov with 1080p or 720p resolution on Mac. When the conversion is done, you can play the converted videos in QuickTime player without hassle.
I am having trouble playing 4k video captured by a GoPro Hero 7 on my 2017 MacBook Air. The video is encoded with the HEVC x265 codec. Both GoPro's QUIK and QuickTime player has serious performance issues during playback. The video stutters like crazy, FPS hovers around 0 to 5 with long pauses.
Thanks for your reply. I am concerned that it is a system problem. The problems seem to have started after upgrading to El Capitan. having said that, today I played one of the videos on on of our studio macs at work and it played fine. Some of the videos have pIayed fine before and now don't.
I have repaired permissions using disk utility and it has rectified some minor issues. Unfortunately that hasn't sorted anything out. The videos are on an external USB hardrive. I have tried playing the videos when nothing else is running but that doesn't seem to rectify anything. I have downloaded videos on occasion and they have ran OK. Steaming video is OK too.
Unsure what you mean by "downloaded videos" here. If you're saying videos have a problem playing directly from the USB drive but play fine when "downloaded" to an internal drive, then the problem could be a disparity in the manner in which the videos are encoded as compared with the throughput capacity of your USB device and/or connection. (E.g., an older USB 1 thumb drive delivers data much slower than a full-feature, externally powered USB 3 drive,) Data in video files encoded to play directly from a computer hard drive are often encoded differently from videos targeted for playback from an optical DVD drive or those targeted for streaming over the internet. So, please confirm more specifically how the videos are being played, as well as encoding target specifics if known. (E.g., were files encoded for Download, CD/DVD-ROM, streaming, or device specific playback?)
Unfortunately, we are still trying to determine what factors may be contributing most to your problem. I.e., is this a UHD resolution file with exceptionally wide data rate excursions, a playback connectivity issue, or a platform system problem?
Doubt it would be a codec configuration issue per se. The QT X AVFoundation is programmed to only support a limited number of codecs and either plays the codec if supported or fails to play/tries to convert those it doesn't support. On the other hand, this may indicate a data handling issues. QT 7 would normally be better at handling legacy compression format program streams while QT X is designed of more modern formats in either program or transport streams. Since you have not mentioned what compression formats/settings were used to create the files, it is difficult to say more at this time. Would normally assume the files are probably H.264/AAC MOV files using Main or High Profile @ Level 3.0 to 4.1 depending on specific hardware/software used for encoding. These files are the most common and are usually very stable unless pushed to upper data throughput limits forcing the QT player to drop an excessive number of frames during playback which, in turn, can lead to choppy or frozen playback.
You are basically trying to play the equivalent of a Blu-ray movie in your QT player. This may or may not be more than your system can easily handle. To see how well your player is taking the load, open the same file in your QT 7 player and compare the playback frame rate of the file with its encoded frame frame rate. If the player is dropping a significant number of frames, this could be the main source of your problem and different players handle data overloads differently. I see in your case that you are viewing the 1920x1080 file at a resolution of only 774x435. Unfortunately, making the display smaller doesn't affect the amount of data processed per unit of time. In fact, it actually adds to the problem since the data has to be fractionally scaled for final player display. I would normally transcode the file to the target display dimensions I want to use for distribution using a much lower data rate. For example, I am currently testing 720p (1280x720p24) H.264/HE AAC 5.1 playback through the TV4 which have total data rates on the order of 1.5 to 2.0Mbps or roughly 1/10 to 1/15 the data rate of your example. I admit that my tests are not typical but you should be able to get by with full HD versions of your file running at 1/2 to 1/4 of the current data rate. Your file is what I would normally keep as the raw archival file used as the source for edited distribution content at lower data rates more compatible with older systems and devices in general use.
I'm not very techy with sound & vid stuff, so having trouble following your conversation. But what I can contribute is this: up until a couple months ago, everything I downloaded with Download Helper on Firefox played fine. Then the choppy started.
The video may have been compressed with a codec that is not supported by the computer. A codec is an algorithm that codes and decodes streams of media like audio and video. When a media player is not equipped to stream a particular video codec, playback may be choppy. Users can identify a video's codecs by running the media through an analyzer like GSpot, VideoInspector or MediaInfo. Once users have identified the video's codecs, they can install free plug-ins to enable playback for the media.
QuickTime can also be used to stream embedded Web video. If online media appears choppy, it could be because the media player's streaming settings need to be tweaked. Users can stream QuickTime embedded video more smoothly by increasing buffering time. When media has more time to buffer, more of the content is downloaded before it is played. Users can increase buffering time in QuickTime by going to "Edit," "QuickTime," "Preferences" and "Streaming." Raise the marker on the "Play Streams" scale closer to "Short Delay."
If you upgrade your Mac OS to macOS 10.15 Catalina, you may find that some videos won't play on macOS Catalina. Because of Apple's 32-bit to 64-bit technology transition plan, the 32-bit apps including QuickTime Player 7 won't work well on macOS Catalina anymore. Besides, this conversion will also affect media which relies on older 32-bit codecs, meaning that even the QuickTime Player 7 MOV files and some other videos won't play on macOS Catalina/Big Sur successfully. In case needed, there is the solution that may help a lot. 2b1af7f3a8