Known Issue: MKV Pass-Through

[Mogly]

hi there,

i have the following problem. I tried a mkv movie with the passthrough method and the mp4 file plays fine on my pc but xbox refuses to play it (incompatible format).

The converter shows me no error. Everything should be fine.

The sample mkv file from the same movie works on my xbox.

Could it be because of the file size?

May it help if i change from 5.1 to 4.1 with h264info or could there be any other problem i haven't recognized?

Anyone had the same problem that the sample mkv file plays fine and the movie itself processed exactly the same doesn't work?

I wasted about 6 hours yesterday

[Pitbull_Raven]

The problem seems to be in the encoding of the extracted ac3 files. If you look a bit higher up in the console, you should find this:
Seems stream 19 codec frame rate differs from container frame rate: 1.#J (1/0) -> 90000.00 (90000/1)
Input #0, mpeg, from 'D:\work\file.ac3':
Duration: N/A, start: 43609.223344, bitrate: N/A
Stream #0.0[0x1cd]: Audio: mp2, 96 kb/s
Stream #0.1[0x1da]: Audio: mp2, 416 kb/s
Stream #0.2[0x1c0]: Audio: mp2, 56 kb/s
Stream #0.3[0x1e9]: Video: mpeg2video, 90000.00 fps(r)
Stream #0.4[0x1e0]: Video: mpeg2video, 90000.00 fps(r)
Stream #0.5[0x1de]: Audio: mp2, 96 kb/s
Stream #0.6[0x1ee]: Video: mpeg1video, 3037x2467, 27781 kb/s, 60.00 fps(r)
Stream #0.7[0x1d6]: Audio: mp2, 384 kb/s
Stream #0.8[0x2c]: Subtitle: dvdsub
Stream #0.9[0x1cf]: Audio: mp2, 384 kb/s
Stream #0.10[0x1e1]: Video: mpeg1video, 1040x2287, 29413 kb/s, 24.00 fps(r)
Stream #0.11[0x1c5]: Audio: mp2, 32 kb/s
Stream #0.12[0x1dd]: Audio: mp2, 80 kb/s
Stream #0.13[0x1d2]: Audio: mp2, 80 kb/s
Stream #0.14[0x1d3]: Audio: mp2, 224 kb/s
Stream #0.15[0x1d7]: Audio: mp2, 352 kb/s
Stream #0.16[0x1d8]: Audio: mp2, 224 kb/s
Stream #0.17[0x9b]: Audio: dca
Stream #0.18[0x1ea]: Video: mpeg2video, 90000.00 fps(r)
Stream #0.19[0x1ef]: Video: mpeg2video, 90000.00 fps(r)
Output #0, mp4, to 'D:\work\file.m4a':
Stream #0.0: Audio: aac, 160 kb/s
Stream mapping:
Stream #0.0 -> #0.0
[aac @ 00AB2A40]libfaac doesn't support this output format!
Error while opening codec for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
EXEC: D:\programs\Red Kawa\Video Converter\Tools\MP4Box_051807\MP4Box.exe -new -add "D:\work\file.h264" -add "D:\work\file.m4a" -fps 23.976 "D:\work\file.mp4"


Anyone have any solution for this yet? I have googled a bit and can't find a way around it.

[Midiman]

Your video source has 19 streams....

[perfp]

In my case, the MKV Pass-Through failed because the ac3 stream could not be converted to aac.

This is because ffmpeg believes the ac3 file to be a mp2 stream, and fails with the error "could not find codec parameters". This is the same error that therealwakka reported earlier in the thread.

By splitting the mkv and running ffmpeg manually, adding -f ac3 to force ffmpeg to see the file as an ac3 stream, the audio stream was converted properly.

[Pitbull_Raven]

Originally Posted by Midiman

Your video source has 19 streams....

Nope, sorry. Only 1 video and 1 audio stream. It's a tv ep capture. And I get the same error with all of them. So I guess the detection is wrong, but even if it isn't, perfp is probably right:

Originally Posted by perfp

In my case, the MKV Pass-Through failed because the ac3 stream could not be converted to aac.

My thought exactly. The problem is that having to do anything manually kind of defeats the purpose of using this app in the first place.

[Midiman]

Can you count???


Stream #0.0[0x1cd]: Audio: mp2, 96 kb/s
Stream #0.1[0x1da]: Audio: mp2, 416 kb/s
Stream #0.2[0x1c0]: Audio: mp2, 56 kb/s
Stream #0.3[0x1e9]: Video: mpeg2video, 90000.00 fps(r)
Stream #0.4[0x1e0]: Video: mpeg2video, 90000.00 fps(r)
Stream #0.5[0x1de]: Audio: mp2, 96 kb/s
Stream #0.6[0x1ee]: Video: mpeg1video, 3037x2467, 27781 kb/s, 60.00 fps(r)
Stream #0.7[0x1d6]: Audio: mp2, 384 kb/s
Stream #0.8[0x2c]: Subtitle: dvdsub
Stream #0.9[0x1cf]: Audio: mp2, 384 kb/s
Stream #0.10[0x1e1]: Video: mpeg1video, 1040x2287, 29413 kb/s, 24.00 fps(r)
Stream #0.11[0x1c5]: Audio: mp2, 32 kb/s
Stream #0.12[0x1dd]: Audio: mp2, 80 kb/s
Stream #0.13[0x1d2]: Audio: mp2, 80 kb/s
Stream #0.14[0x1d3]: Audio: mp2, 224 kb/s
Stream #0.15[0x1d7]: Audio: mp2, 352 kb/s
Stream #0.16[0x1d8]: Audio: mp2, 224 kb/s
Stream #0.17[0x9b]: Audio: dca
Stream #0.18[0x1ea]: Video: mpeg2video, 90000.00 fps(r)
Stream #0.19[0x1ef]: Video: mpeg2video, 90000.00 fps(r)

[Pitbull_Raven]

Originally Posted by Midiman

Can you count???

Yes. I actually learned how to when I was only 2. But if you don't believe me I can always provide the sample clip. There IS only 1 video and 1 audio stream in there. Even MKVExtract only detects 2 streams total. The question is, can you be humble enough to accept that something might be wrong in the detection phase?

[jimbo]

I had the same problem where some ac3 files would encode but some would not. However I found a solution that works all the time so far with mkv files from 100mb to 7.9gb with AC3 audio of any bit rate.

The current ffmpeg that comes with Video 9 is r9133. Thinking if I update this program it may work I tried all the newer versions with the same or worse results. Then I decided to roll back and tried several from this site until I tried r7906. Magic.
http://ffdshow.faireal.net/mirror/ffmpeg/

Just rename your old one and replace it with this exe. So far it's been working great. The files play fine on PS3, although sadly in stereo of course. Now only I could get something to convert DTS audio.