On Wed, Aug 10, 2016 at 19:31:28 +0200, Peter White wrote: > That does not make much sense, since the final file is supposed to be > fltp, which is 32 bit, anyway.
This may be a misconception. I believe the "fltp" ffmpeg prints for its inputs is the format the decoder presents. I didn't find any indication that DTS encodes with floating point. Actually, it should be 14 or 16 bits, or up to 24 for DTS-HD. That certain "other tool" identified these as 20 bit, which leads me to believe it's DTS-HD. I'm not sure about the state of things, but in 2013, ffmpeg only decoded the core of DTS-HD. > But another thing popped into my head. Since it is a 6-channel audio, > the bitrate should be more than 1411k. This looks an awful lot like a > stereo bitrate, which would actually be 1411.2k (16*44.1k*2). It's compressed, and standard DTS is lossy. Your calculation is only valid for uncompressed PCM. > Is it possible that this is a matrix encoding, like Dolby Prologic? I > don't know if it matters at all but I think it's worth pointing out, > just in case. If is was matrix encoded (into 2 channels), ffmpeg's demuxer would only show you 2 channels. Matrix decoding 2->X.1 is done in audio filters, IIRC. I'm still confused at to what this file really is. ;-) Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
