eac3to - audio conversion tool - Page 596

Joniii · 15th November 2012, 07:48

Here's a small THD sample from Finding Nemo. It demuxed fine from BD but the demuxed file doesn't seem to have AC3 core, also when trying to encode to AC3 it fails. I also have this exact same problem with Total Recall.

Code:

H:\eac3to>eac3to e:\nemo.thd d:\nemo.ac3
TrueHD, 7.1 channels, 48kHz
AC3 encoding doesn't support back channels. Will mix them into the surround.
Decoding with libav/ffmpeg...
Remapping channels...
Mixing surround channels...
Encoding AC3 <640kbps> with libAften...
[mlp @ 00b42d10] Substream 0 parity check failed
[mlp @ 00b42d10] Substream 0 checksum failed
[mlp @ 00b42d10] Substream 0 length mismatch.
The libav decoder reported error -1 while decoding.

Sample

jj666 · 15th November 2012, 12:28

Hi Madshi,

There are two outstanding fixes mentioned here (and the post above) regarding the stripping of DTS-HD Master Audio Suite headers needing adjustment, and issues with audio delays when two passes are needed.

Cheers,

-jj-

tebasuna51 · 15th November 2012, 12:53

Quote:

Originally Posted by madshi

@tebasuna51, would you be willing to make a list of the most important things to fix in / add to eac3to? Not too big things, please, just bugfixes and minor changes/improvements. Thanks!

Maybe the best option is open the source code like was sugessted many times in this thread.

BTW, I open a new thread eac3to v3.24 Bugs & Improvements

madshi · 15th November 2012, 15:49

Thanks, I'll have a look at that new thread. It might take a week or two or three before I get to this, though.

sporic · 16th November 2012, 21:30

Quote:

Originally Posted by Joniii

Several new BD's with TrueHD have problems, for example it's impossible to directly encode TrueHD to DTS or AC3 with EAC3TO, it gives some red warnings and hangs. Also demuxing THD works but demuxing THD with AC3 fails.

Code:

[mlp @ 00b42d10] Substream 0 parity check failed
[mlp @ 00b42d10] Substream 0 checksum failed
[mlp @ 00b42d10] Substream 0 length mismatch.
a03 The libav decoder reported error -1 while decoding.

What's new in these TrueHD tracks that's causing these problems?

rapscallion · 16th November 2012, 21:48

Quote:

Originally Posted by sporic

What's new in these TrueHD tracks that's causing these problems?

Someone previously suggested that it has to do with seamless branching. Although I've had no problem in the past with that.

tebasuna51 · 16th November 2012, 22:34

Quote:

Originally Posted by rapscallion

Someone previously suggested that it has to do with seamless branching.

Nope, I extracted the .thd's directly from .m2ts's (with eac3to and tsMuxeR) of BD Brave, and when try decode with eac3to all crash with this error.

ffmpeg decode the thd's without problem.

Maybe -libav need a update.

rapscallion · 16th November 2012, 22:41

Quote:

Originally Posted by tebasuna51

Nope, I extracted the .thd's directly from .m2ts's (with eac3to and tsMuxeR) of BD Brave, and when try decode with eac3to all crash with this error.

ffmpeg decode the thd's without problem.

Maybe -libav need a update.

Funny, ffmpeg didn't work for me

Code:

[truehd @ 023cc440] max_analyze_duration 5000000 reached at 5000000
[truehd @ 023cc440] Estimating duration from bitrate, this may be inaccurate
Input #0, truehd, from 'track_4352.thd':
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Audio: truehd, 48000 Hz, 7.1, s32
Output #0, flac, to 'track_4352.flac':
  Metadata:
    encoder         : Lavf54.36.100
    Stream #0:0: Audio: flac, 48000 Hz, 7.1, s32, 128 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (truehd -> flac)
Press [q] to stop, [?] for help
Lossless check failed - expected 00, calculated f4.s/s
Lossless check failed - expected 00, calculated 65.s/s
Lossless check failed - expected 00, calculated dc.s/s
End of stream indicated.40:25.24 bitrate=2975.9kbits/s
[truehd @ 024c0900] restart header sync incorrect (got 0x0685)
Error while decoding stream #0:0: Invalid data found when processing input
    Last message repeated 3 times
[truehd @ 024c0900] restart header sync incorrect (got 0x0d60)
Error while decoding stream #0:0: Invalid data found when processing input
    Last message repeated 3 times
[truehd @ 024c0900] too many audio samples in frame
Error while decoding stream #0:0: Invalid data found when processing input
[truehd @ 024c0900] too many audio samples in frame
Error while decoding stream #0:0: Invalid data found when processing input
[truehd @ 024c0900] too many audio samples in frame
Error while decoding stream #0:0: Invalid data found when processing input
    Last message repeated 1 times
[truehd @ 024c0900] too many audio samples in frame
Error while decoding stream #0:0: Invalid data found when processing input
    Last message repeated 1 times
[truehd @ 024c0900] restart header sync incorrect (got 0x1556)
Error while decoding stream #0:0: Invalid data found when processing input
[truehd @ 024c0900] Lossless check failed - expected 07, calculated e0.
size= 2195470kB time=01:40:53.96 bitrate=2970.8kbits/s
video:0kB audio:2195462kB subtitle:0 global headers:0kB muxing overhead 0.000367
%

C:\Dvd_rw\ffmpeg\bin>

Plus, I could extract with eac3to, but not create "wavs".

tebasuna51 · 17th November 2012, 03:19

With the thd extracted from 00954.m2ts (Brave BD):

Quote:

ffmpeg version N-44601-gcb3591e Copyright (c) 2000-2012 the FFmpeg developers
built on Sep 19 2012 16:28:01 with gcc 4.7.1 (GCC)
...
[truehd @ 023ecf60] max_analyze_duration 5000000 reached at 5000000
[truehd @ 023ecf60] Estimating duration from bitrate, this may be inaccurate
Input #0, truehd, from 'D:\Temp\t003.thd':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Audio: truehd, 48000 Hz, 7.1, s32
Output #0, wav, to 'audio.wav':
Metadata:
encoder : Lavf54.27.101
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, 7.1, s16, 6144 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (truehd -> pcm_s16le)
Press [q] to stop, [?] for help
End of stream indicated.02:56.87 bitrate=6143.2kbits/s
size= 136856kB time=00:03:02.47 bitrate=6144.0kbits/s
video:0kB audio:136856kB subtitle:0 global headers:0kB muxing overhead 0.000049%

ron spencer · 17th November 2012, 03:58

I have same issue...eac3to and tsmuxer both crash...is there a way to demux from the m2ts in the playlist...I like to convert to ac-3 448...why is this truehd stream so weird...it has worked b4

soneca · 17th November 2012, 05:03

Quote:

Originally Posted by tebasuna51

With the thd extracted from 00954.m2ts (Brave BD):

tebasuna51,

This same blu-ray(Brave) shows me the main audio track as Dolby Digital Plus(E-AC-3) with 7.1 channels.

Joniii · 17th November 2012, 08:26

Quote:

Originally Posted by madshi

Thanks, I'll have a look at that new thread. It might take a week or two or three before I get to this, though.

Put madVR on hold. Ripping Blu-rays should be priority.

lmaolmao · 17th November 2012, 10:24

eac3to does not seem to be able to extract the .thd+ac3 on the brave/nemo discs it tries to start making an ac3 core using aften.

set it to demux just .thd and it spits out a file, set it to .ac3 and it spits out a file (neither one encoding), but when you want a .thd+ac3 file it fails.

Code:

M2TS, 1 video track, 8 audio tracks, 13 subtitle tracks, 1:40:54, 24p /1.001
1: Chapters, 32 chapters
2: h264/AVC, 1080p24 /1.001 (16:9)
3: TrueHD/AC3, English, 7.1 channels, 48kHz
   (embedded: AC3 EX, 5.1 channels, 640kbps, 48kHz)
4: AC3 Surround, English, 2.0 channels, 320kbps, 48kHz
5: AC3 EX, Czech, 5.1 channels, 640kbps, 48kHz
6: AC3 EX, Slovak, 5.1 channels, 640kbps, 48kHz
7: AC3 EX, Arabic, 5.1 channels, 640kbps, 48kHz
8: AC3 EX, Russian, 5.1 channels, 640kbps, 48kHz
9: AC3 EX, Ukrainian, 5.1 channels, 640kbps, 48kHz
10: AC3 EX, Croatian, 5.1 channels, 640kbps, 48kHz
11: Subtitle (PGS), English
12: Subtitle (PGS), English
13: Subtitle (PGS), Czech
14: Subtitle (PGS), Slovak
15: Subtitle (PGS), Arabic
16: Subtitle (PGS), Russian
17: Subtitle (PGS), Ukrainian
18: Subtitle (PGS), Croatian
19: Subtitle (PGS), Slovak
20: Subtitle (PGS), Arabic
21: Subtitle (PGS), Ukrainian
22: Subtitle (PGS), Croatian
23: Subtitle (PGS), Czech
a03 AC3 encoding doesn't support back channels. Will mix them into the surround.

a03 Extracting audio track number 3...
a03 Extracting TrueHD stream...
a03 Extracting audio track number 3...
a03 Extracting TrueHD stream...
a03 Decoding with libav/ffmpeg...
a03 Remapping channels...
a03 Mixing surround channels...
a03 Encoding AC3 <640kbps> with libAften...
a03 libav Substream 0 parity check failed
a03 libav Substream 0 checksum failed
a03 libav Substream 0 length mismatch.
a03 The libav decoder reported error -1 while decoding.

I hadn't noticed this mentioned in the thread. Is this why some are having trouble remuxing?

hoju3508 · 17th November 2012, 23:52

@lmaolmao, this "a03 The libav decoder reported error -1 while decoding." is a known problem for eac3to.

BigPines · 18th November 2012, 03:45

Quote:

Originally Posted by hoju3508

@lmaolmao, this "a03 The libav decoder reported error -1 while decoding." is a known problem for eac3to.

I've been using eac3to for years and never got this error until Brave. Unfortunately, this is a pretty bad bug. It makes it impossible to demux Brave or convert the audio using eac3to.

Bummer...

Mike

ron spencer · 18th November 2012, 04:28

you can demux the thd only...that is easy.

then use ffmpeg to convert to ac3 448...I just did that ...seems perfect. you just need and extra step.

hopefully eac3to can be fixed for this.

lmaolmao · 18th November 2012, 09:25

Quote:

Originally Posted by hoju3508

@lmaolmao, this "a03 The libav decoder reported error -1 while decoding." is a known problem for eac3to.

maybe i am not making myself clear. This is happening before the -1 error.

with all other truehd discs you can extract a .thd file, the .ac3 core or a .tdh+ac3 file. And it just demuxes it (no encoding).

With BRave and Nemo, you can extract a .thd or the .ac3 core fine. But when extracting the .thd+ac3, eac3to initialises aften to make the ac3 track instead of just demuxing. Which is odd.....

Boulder · 18th November 2012, 10:08

Quote:

Originally Posted by lmaolmao

But when extracting the .thd+ac3, eac3to initialises aften to make the ac3 track instead of just demuxing. Which is odd.....

Post the commandline so we can see if there's anything wrong with that.

lmaolmao · 18th November 2012, 10:27

Quote:

Originally Posted by Boulder

Post the commandline so we can see if there's anything wrong with that.

Heres the full command line/output.

Code:

P:\22>"D:\VID TOOLS\eac3to\eac3to.exe" "Y:\BDMV\PLAYLIST\00800.mpls" 1) 3: "P:\22\Audio.thd+ac3"
M2TS, 1 video track, 8 audio tracks, 13 subtitle tracks, 1:40:54, 24p /1.001
1: Chapters, 32 chapters
2: h264/AVC, 1080p24 /1.001 (16:9)
3: TrueHD/AC3, English, 7.1 channels, 48kHz
   (embedded: AC3 EX, 5.1 channels, 640kbps, 48kHz)
4: AC3 Surround, English, 2.0 channels, 320kbps, 48kHz
5: AC3 EX, Czech, 5.1 channels, 640kbps, 48kHz
6: AC3 EX, Slovak, 5.1 channels, 640kbps, 48kHz
7: AC3 EX, Arabic, 5.1 channels, 640kbps, 48kHz
8: AC3 EX, Russian, 5.1 channels, 640kbps, 48kHz
9: AC3 EX, Ukrainian, 5.1 channels, 640kbps, 48kHz
10: AC3 EX, Croatian, 5.1 channels, 640kbps, 48kHz
11: Subtitle (PGS), English
12: Subtitle (PGS), English
13: Subtitle (PGS), Czech
14: Subtitle (PGS), Slovak
15: Subtitle (PGS), Arabic
16: Subtitle (PGS), Russian
17: Subtitle (PGS), Ukrainian
18: Subtitle (PGS), Croatian
19: Subtitle (PGS), Slovak
20: Subtitle (PGS), Arabic
21: Subtitle (PGS), Ukrainian
22: Subtitle (PGS), Croatian
23: Subtitle (PGS), Czech
a03 AC3 encoding doesn't support back channels. Will mix them into the surround.

a03 Extracting audio track number 3...
a03 Extracting TrueHD stream...
a03 Extracting audio track number 3...
a03 Extracting TrueHD stream...
a03 Decoding with libav/ffmpeg...
a03 Remapping channels...
a03 Mixing surround channels...
a03 Encoding AC3 <640kbps> with libAften...
a03 libav Substream 0 parity check failed
a03 libav Substream 0 checksum failed
a03 libav Substream 0 length mismatch.
a03 The libav decoder reported error -1 while decoding.

tebasuna51 · 18th November 2012, 10:30

I can confirm the issue, I have the same log than lmaolmao:

Quote:

a03 AC3 encoding doesn't support back channels. Will mix them into the surround.
a03 Extracting audio track number 3...
a03 Extracting audio track number 3...
a03 Extracting TrueHD stream...
a03 Extracting TrueHD stream...
a03 Decoding with libav/ffmpeg...
a03 Remapping channels...
a03 Mixing surround channels...
a03 Encoding AC3 <640kbps> with libAften...
a03 libav Substream 1 parity check failed
a03 libav Substream 1 checksum failed
a03 libav Substream 1 length mismatch.
a03 The libav decoder reported error -1 while decoding.

with this command line:
eac3to.exe "D:\Temp\BRAVE\" 1) 3: "D:\Temp\BRAVE\0_eng3.thd+ac3"

15th November 2012, 07:48	#11901 \| Link
Joniii Registered User Join Date: Aug 2007 Posts: 301	Here's a small THD sample from Finding Nemo. It demuxed fine from BD but the demuxed file doesn't seem to have AC3 core, also when trying to encode to AC3 it fails. I also have this exact same problem with Total Recall. Code: H:\eac3to>eac3to e:\nemo.thd d:\nemo.ac3 TrueHD, 7.1 channels, 48kHz AC3 encoding doesn't support back channels. Will mix them into the surround. Decoding with libav/ffmpeg... Remapping channels... Mixing surround channels... Encoding AC3 <640kbps> with libAften... [mlp @ 00b42d10] Substream 0 parity check failed [mlp @ 00b42d10] Substream 0 checksum failed [mlp @ 00b42d10] Substream 0 length mismatch. The libav decoder reported error -1 while decoding. Sample __________________ Windows 10 Pro 2004 with Media Center, 2 x DVB-C with cable cards MPC-HC (madVR, LAV Filters, XySubFilter) Sony Bravia 85X950H/85XH95 Yamaha RX-V685 Yamaha Piano Black NS-777/555/C444/YST-SW315

17th November 2012, 23:52	#11914 \| Link
hoju3508 Registered User Join Date: Nov 2007 Location: Austin, TX Posts: 197	@lmaolmao, this "a03 The libav decoder reported error -1 while decoding." is a known problem for eac3to. __________________

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15th November 2012, 12:28	#11902 \| Link
jj666 Registered User Join Date: May 2003 Posts: 153	Hi Madshi, There are two outstanding fixes mentioned here (and the post above) regarding the stripping of DTS-HD Master Audio Suite headers needing adjustment, and issues with audio delays when two passes are needed. Cheers, -jj-

15th November 2012, 15:49	#11904 \| Link
madshi Registered Developer Join Date: Sep 2006 Posts: 9,140	Thanks, I'll have a look at that new thread. It might take a week or two or three before I get to this, though.

17th November 2012, 03:58	#11910 \| Link
ron spencer DVD Magistrate Join Date: Dec 2003 Location: Sodor Posts: 991	I have same issue...eac3to and tsmuxer both crash...is there a way to demux from the m2ts in the playlist...I like to convert to ac-3 448...why is this truehd stream so weird...it has worked b4

18th November 2012, 04:28	#11916 \| Link
ron spencer DVD Magistrate Join Date: Dec 2003 Location: Sodor Posts: 991	you can demux the thd only...that is easy. then use ffmpeg to convert to ac3 448...I just did that ...seems perfect. you just need and extra step. hopefully eac3to can be fixed for this.