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Media container formats (file types) - Web media ...
https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Containers
Some support only audio while others support both audio and video. The MIME types and extensions for each are listed.The most commonly used containers for media on the web are probably MPEG-4 (MP4), QuickTime Movie (MOV), and the Wavefile Audio File Format (WAV). However, you may also encounter MP3, Ogg, WebM, AVI, and other formats.
Supported Video and Audio Formats, Codecs, and …
https://studio.support.brightcove.com/general/supported-video-and-audio-formats-codecs-and-containers.html
Supported Video and Audio Formats, Codecs, and Containers ... For example, H.264 video does not just mean a file with the extension .mp4. Video files contain both metadata (duration, dimensions, etc.) as well as the encoded and often compressed audio and video data. The container format defines how the metadata is stored along with the audio ...
Support mp3 audio (mp4a.40.34) in mp4 video container ...
https://github.com/video-dev/hls.js/issues/332
The good news is that mp3 works pretty well in Firefox - mp3 is feeding in mp4 container in Quicktime way (MPEG-1/2 Part 3 - QuickTime File Format audio/mp4; codecs="mp3"). Chrome doesn't support audio/mp4 container with mp3 codec, but it can play with audio/mpeg which is RAW mp3 container. Here comes the first issue: in Chrome when trying to seek on …
Solved: Adobe Media Encoder .mp4 container with PCM audio ...
https://community.adobe.com/t5/after-effects-discussions/adobe-media-encoder-mp4-container-with-pcm-audio/m-p/9030843
PCM is not a supported audio codec in MP4 containers. Some vendors violate this; for example Sony puts PCM in the MP4's geneated by their A7s camera. You can use a MOV container though. As for getting AE to generate PCM, I've never tried it myself. If it doesnt support it can you always mux it in using ffmpeg.
Support for AAC in M4A (MP4) container · Issue #389 ...
https://github.com/libsndfile/libsndfile/issues/389
The m4b file is the "proper" extension for audio books. The m4a, yes, is nothing but a mp4 file containing only audio. In my experiences, you can name it m4a or mp4 and have no consequence. It is my understand that, in general, Apple is behind all of the m4x extensions, which are all essentially mp4 files.
Mp4 Video Container and the Codecs use with it - Video ...
https://video.stackexchange.com/questions/12558/mp4-video-container-and-the-codecs-use-with-it
The Wikipedia article on MPEG-4 is a great start as the MP4 file specification is part of the MPEG-4 spec. Specifically version 2 of MP4 is MPEG-4 Part 14.While not free, you can purchase copies of the ISO spec under ISO# 14496-14:2003.A preview with some detail is available from the ISO here.. It is designed to contain any of the various MPEG video formats, including MPEG, MPEG …
ffmpeg - Unable to store pcm audio in .mp4 container file ...
https://stackoverflow.com/questions/17651975/unable-to-store-pcm-audio-in-mp4-container-file
I don't think mp4 container format support raw pcm audio. You will have to use either avi or mov. See wikipedia link for supported audio format for mp4 container. http://en.wikipedia.org/wiki/Comparison_of_container_formats. Also follow doom9 forum link. http://forum.doom9.org/archive/index.php/t-140877.html. Official page
does MP4 contain 5.1 ch audio? - VideoHelp Forum
https://forum.videohelp.com/threads/311131-does-MP4-contain-5-1-ch-audio
MP4 is a container. It can contain 5.1AC3 or 5.1AAC or stereo or mp3 or other audio. But if it's 5.1 AC3, you need a splitter that can handle it in order to "hear" it . Use mediainfo if you don't know what is inside Quote 15th Oct 2009 21:45 #3 …
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