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Old 13th June 2019, 23:17   #14841  |  Link
thecoreyburton
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I often use eac3to to demux BD streams. In the past I've noted a common delay of just above 21ms (there's a remaining delay of less than 1ms) when dealing with DTSHD track transcoding (eg. DTSHD > FLAC). At the time, I read up on this a fair bit and did some of my own testing, eventually concluding that a simple "-21ms" parameter would be ideal when dealing with DTSHD in this way.

There's plenty of discussion about this, but a lot of it seems related to specific issues and I can't find anything conclusive about whether or not this is the right way to approach this. I'm not sure if there is a "correct" way to do this (for instance a trim based on samples / frames to make it align perfectly or some internal function that does this), or if I should be touch this value at all. I believe it's an encoder delay (and not a decoder delay, but I could be wrong) and so it stands to reason that if this is true, perhaps some BDs have been authored with compensation for this delay in mind.

I was wondering if the way I'm handling it is the correct procedure, or is there a better way?
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Old 14th June 2019, 02:33   #14842  |  Link
tebasuna51
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It is know than encoders add initial silence samples to initialize some encoders buffers, for instance if you recode to AC3 you obtain a delay of 5 ms, until 38 ms with some AAC encoders.

But with some encoders that delay is stored in metadata and any decoder must restore the audio without delay. For instance AAC in mp4 container (.m4a) must play without delay.
I can't reproduce the problem recoding DTSHD to FLAC, for me the obtained .flac is decoded without delay.
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Old 5th July 2019, 15:47   #14843  |  Link
zeropc
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Are we going to see a new version that supports HEVC? Last version is almost a year old
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Old 5th July 2019, 16:39   #14844  |  Link
sneaker_ger
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eac3to v3.32 "added support for h265/HEVC bitstream parsing". So your feature request seems too unspecific. Either way eac3to development seems pretty much stalled. Not much you can do except make a proper feature request on madshi's tracker and keep fingers crossed he finds time/interest to work on it again ...
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Old 15th August 2019, 18:20   #14845  |  Link
ryu34
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Hey I'm trying to use a sony x700 uhd bd player to play back my 4k uhd remuxes from a usb flash drive. It doesn't support true-hd playback from mkv containers, it can only do true-hd from m2ts, however dts-hd ma works fine from either. I thought i could over come this by just using the m2ts straight from the rip but when i playback that file i lose the ability to seek or skip chapters, anyone have any suggestions barring getting a new playback device? Thanks
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Old 15th August 2019, 18:40   #14846  |  Link
SeeMoreDigital
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Quote:
Originally Posted by ryu34 View Post
Hey I'm trying to use a sony x700 uhd bd player to play back my 4k uhd remuxes from a usb flash drive. It doesn't support true-hd playback from mkv containers, it can only do true-hd from m2ts, however dts-hd ma works fine from either. I thought i could over come this by just using the m2ts straight from the rip but when i playback that file i lose the ability to seek or skip chapters, anyone have any suggestions barring getting a new playback device? Thanks
Sadly... With regard to av file/container support, all hardware playback devices have their limitations. And just-so-you-know, the Panasonic UHD players are just as limited as the Sony's in this regard!
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Old 16th August 2019, 22:06   #14847  |  Link
ryu34
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OK new question what kind of tools do i need to use with eac3to to demux 4k UHD dics rips and remux them into my own custom m2ts , edit i tried ts muxer and the audio desyncs from the video when using a true-hd track demuxed from the disc rip using eac3to.
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Old Yesterday, 11:25   #14848  |  Link
tebasuna51
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I don't know any free tool to manage 4k UHD m2ts.

tsMuxeR can't do it, read this, now the source code is released and maybe it can work in the future.
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Old Yesterday, 23:49   #14849  |  Link
stax76
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Can somebody with a trustworthy reputation provide updated libraries?

https://github.com/staxrip/staxrip/issues/32
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Old Today, 00:44   #14850  |  Link
Sparktank
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Quote:
Originally Posted by stax76 View Post
Can somebody with a trustworthy reputation provide updated libraries?

https://github.com/staxrip/staxrip/issues/32
you can use Rarewares for libflac update (remember to use only the x86 build for eac3to).
www.rarewares.org/lossless.php

They use latest library.
According to hydrogenaud.io forums, the only real differences for FLAC 1.3.2 and 1.3.3 is mainly for behind the curtain updates.
Nothing useful for the end-user and not worth re-compressing your existing library that has used 1.3.2 in the past.
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