2015-02-02, 14:13
(2015-02-02, 13:51)noggin Wrote: So if you have DTS HD MA tracks and can decode them to FLAC 5.1 (or transcode to Dolby True HD if an encoder exists?) on a Windows box you're fine for 48kHz tracks really aren't you? (And 192kHz multichannel will be down sampled, though stereo won't be?)I think ffmpeg can only extract/decode the DTS core, so I think DTS-HD MA can be passed through as 5.1 channel core, or decoded to 5.1 channel core and output as PCM.
If can transcode the audio to 8 channel PCM, (or flac or whatever) then Pi2 will decode and output 8 channel PCM.
If ffmpeg supports software decode of DTS-HD MA in future, then Pi2 will be able to decode 8 channels and output as PCM.
Quote:(AIUI the Pi limitation is that 8 channel PCM is limited to 48kHz, if you want 192kHz you have to drop the number of channels for bandwidth reasons, and that bandwidth limitation also means True HD/DTS HD MA can't be bitstreamed)Correct. 8 channel PCM at 48kHz is okay. 2 channel PCM at 192kHz is okay.
But 8 channel @ 192kHz is too much, and unfortunately that is the channel rate of TrueHD/DTS-HD MA passthrough.