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1. #AC3 CODEC FROM DOLBY DOWNLOAD UPDATE#
2. #AC3 CODEC FROM DOLBY DOWNLOAD PLUS#

So in theory you "only" have to download the separate fileSequence00.mp4. Audio data SHOULD be provided as an elementary audio stream or in fMP4.

#AC3 CODEC FROM DOLBY DOWNLOAD PLUS#

According to the specification the file extension of Dolby Digital Plus is:Ģ.1. The HLS Authoring Specification specifies Dolby Digital Plus with Dolby Atmos with a bitrate of 384 to 768kb/s, which would perfectly match with the detected bitrate of 768kb/s. So I would guess that Tidal on Apple TV 4K is using some form of HLS Streaming.

#AC3 CODEC FROM DOLBY DOWNLOAD UPDATE#

How did you find out that the created file ist a MPEG-4 file? I could not determine the file container format you mentioned.Īccording to the newest update of the tidal app on Apple TV 4K, Tidal now uses Dolby Digital Plus instead of Dolby AC-4 But you have to be correct, I can rename the file from. I tried MediaInfo and the determined format is "E-AC-3 JOC" so I thought it would only be a audio only file. Oh I didn't know that the file is a MPEG-4 container. I guess the next question is exactly how the Tidal server side file is presented to Tidal-Media-Downloader or the stream that needs to be captured and possibly wrapped in an MPEG-4 container using ffmpeg? I'm not saying this is important, it's probably not, just an observation, but I believe the file extension itself is immaterial. In many cases one can manipulate the file extension on any given file independent of the container to get any given media player to see (get fooled by) the file and play it when it otherwise wouldn't recognize the file type/extension. Mediainfo ID's the container of this this file you created as MPEG-4 and the codec as E-AC3. Related to all this is the concept of codecs vs containers vs file extensions in terms of what's going on here. I'm sure many other platforms and players would do the same. I played this file in Kodi on my Nvidia Shield TV connected via HDMI to my Denon AVR-X3200 receiver and got Atmos audio with no video. If you have a Dolby Atmos capable receiver try to bitstream this. ac3 file with Dolby Atmos based on the Dolby Digital Plus codec.

So I want to prove that you can wrap E-AC-3 JOC inside a. E-AC-3 is "Dolby Digital Plus" and E-AC-3 JOC is "Dolby Digital Plus with Dolby Atmos".