This appendix describes the audio data and file formats supported in Core Audio in OS X v10.5.
Each audio file type lists the data formats supported for that type. That is, a converter exists to convert data from the particular file format to any of the listed data formats. Some data formats (such as AC3) cannot be converted to a linear PCM format and therefore cannot be handled by standard audio units.
A Core Audio Format (CAF) file can contain audio data of any format. Any application that supports the CAF file format can write audio data to the file or extract the data it contains. However, the ability to encode or decode the audio data contained within it is dependent on the audio codecs available on the system.
File Format | Data Formats |
---|---|
AAC ( |
|
AC3 ( |
|
AIFC ( |
|
AIFF ( |
|
Apple Core Audio Format ( |
|
MPEG Layer 3 ( |
|
MPEG 4 Audio ( |
|
MPEG 4 Audio ( |
|
NeXT/Sun Audio ( |
|
Sound Designer II ( |
|
WAVE ( |
|
Key for linear PCM formats. For example, BEF32 = Big Endian linear PCM 32 bit floating point.
| Little Endian |
| Big Endian |
| Floating point |
| Integer |
| Unsigned integer |
| Number of bits |
Best Alternative to K-Lite Codec Pack Mac - Play Video on Mac in any Format Aimersoft Video Converter Ultimate is one of best alternative to K-Lite Codec Pack for Mac. With it, you can play any video/audio files, convert them to almost all popular formats and also touch up the videos without any hassle.
Core Audio includes a number of audio codecs that translate audio data to and from Linear PCM. Codecs for the following audio data type are available in OS X v10.4. Audio applications may install additional encoders and decoders.
Audio data type | Encode from linear PCM? | Decode to linear PCM? |
---|---|---|
MPEG Layer 3 ( | No | Yes |
MACE 3:1 ( | Yes | Yes |
MACE 6:1 ( | Yes | Yes |
QDesign Music 2 ( | Yes | Yes |
QDesign ( | No | Yes |
Qualcomm PureVoice ( | Yes | Yes |
Qualcomm QCELP ( | No | Yes |
AAC ( | Yes | Yes |
Apple Lossless ( | Yes | Yes |
Apple GSM 10:1 ( | No | Yes |
ALaw 2:1 | Yes | Yes |
Apple DRM Audio Decoder ( | No | Yes |
AC-3 | No | No |
DVI 4:1 ( | No | Yes |
Apple IMA 4:1 ( | Yes | Yes |
LPC 23:1 ( | No | Yes |
Microsoft ADPCM | No | Yes |
DVI ADPCM | Yes | Yes |
GSM610 | No | Yes |
AMR Narrowband ( | Yes | Yes |
µLaw 2:1 ( | Yes | Yes |
Copyright © 2017 Apple Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2017-10-30
We receive several sorts of video files from various locations in different ways. For instance, we
But, typically when any user tries to play external (received) video clips on their computer, they may face one or the other playback issues. Sometimes, these video files fail to play properly, at other times they never play at all.
And, at this minute definitely, you will try to get another copy of the unplayable video, if possible (if it is downloaded from the internet or a friend sent you that video). If you cannot obtain the photocopy of the file, then you will try to repair the video file. But, it is not always the corruption, which makes your video file unplayable or results in playback issues. Even codec problem can cause general issues in playing your videos. and, for fixing videos tools you choose must be compatible with codec of the video. For fixing MPEG4 video files you need tool that supports this codec. Likewise, for other codecs too. Hence, it is important to know the codec of video file.
A codec is a computer software, which encodes and decodes a video or audio file. Every single audio, as well as a video file, is made up of a codec since it keeps your video/audio file tiny and makes playback easy. And, codec usually functions with your system media player as a part of it.
Codec installed on your system decodes your videos, music files, which are encoded with a specific codec and allows the media player to play them. If you are experiencing any issue while playing your videos, then you can have a guess that one of your codecs used to play the video might have got corrupted. If not, it might be that you don’t have the right codec on your computer to play the video appropriately.
Many media player including VLC has their own set of built-in codecs. But, if you are employing any other player then how to find the codec of a video that you are playing? Well, here is the way to do it.
You can easily get video codec information on your Windows and Mac computers using your own operating system functionalities. Just follow these step by step guidance to do so.
On Windows:
Go to the location where the video file is stored
On Mac:
Navigate the folder that holds your video clip
Via VLC:
Open the video in VLC, to know its codec
Note down the codecs that are used to create the video file. Now, you can download the required (noted) codecs from their official websites. Once you completed the download process, install them and open the video file using your regular media player.
If you cannot find out the codec information of your video file or if you feel difficulty in checking it manually or the video clip is still not playing even after you have installed the codec, then you can make use of various available tools like MediaInfo, VideoInspector, Codec Installer, GSpot, AVIcodec etc. to get adequate codec and play your video.