mkvmerge muxing x264 dtsma problem

[JimmyBarnes]

MTSMA was extracted using eac3to 3.27 from original M2TS.
The DTSMA transcodes to AC3 OK using eac3to and the AC3 plays normally, so the DTSMA must be OK. and the x264 without audio looks great.

When I mux the x264 and DTSMA however, the sound is garbled.

Tried with both mkvmerge 6.1.0 and 6.3.0 (latest) with the same result.

mkvmerge doesn't list DTSMA as a supported format but it doesn't complain either if you add a DTSMA stream via All Files, or give any sort of error during muxing.

Your help please..

[QBhd]

I have always just used TSMuxer to extract DTSMA and it muxes just fine with mkvMerge. Other apps seem to always do something wrong in the process.

QB

[JimmyBarnes]

I have always just used TSMuxer to extract DTSMA and it muxes just fine with mkvMerge. Other apps seem to always do something wrong in the process.

QB

Apparently not the problem in this case, the DTSMA files extracted by either eac3to 3.27 or tsMuxeR 1.10.6 from 00011.m2ts were binary identical.

[Selur]

I never encountered a problem remuxing dts-hd/ma to mkv (but like QBhd, I'm only using ffmpeg, mencoder and tsMuxeR for audio extraction and not eac3to).
It probably would help if you could share a sample of the original source, so others can test if this problem happens for them too with your stream.

[JimmyBarnes]

I found the problem.. :eek: I did not have a DTS decoder! DOH..!
(in which case I find it strange that there was any audio at all, but garbled audio is what I observed)

This is my first attempt to mux x264 and DTSMA so perhaps I can be forgiven, in the past I have always used AC3.

After enabling DTS decoder in ffdshow, the x264/DTSMA plays normally.