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Old 25th December 2018, 21:27   #23181  |  Link
SamuriHL
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I've tried using MPC-HC with its internal LAV and I still get drops.
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Old 25th December 2018, 21:38   #23182  |  Link
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Quote:
Originally Posted by Aleksoid1978 View Post
You can try MPC-BE without using LAV.
That, however, was an interesting idea. I'm not getting drops with this. Definitely seems to be pointing to something with LAV.

EDIT: Spoke too soon. Nope, drops with this, as well, just in different spots.

EDIT 2: On a hunch I tried going back to the driver version Manni uses and it did not change anything. Thought it could be an nVidia issue. I'm on 416.94 (I won't touch the 417.xx drivers yet until they fix the HDR issues.....AGAIN). Just trying to give as much info as I can to help figure out what's going on. But drops in MPC-xx with and without internal LAV filters are still happening.
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Last edited by SamuriHL; 25th December 2018 at 22:14.
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Old 28th December 2018, 08:48   #23183  |  Link
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VLC 3.0.5 released with AV1 decoder based on dav1d library, but still libaom decoder by default.
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Old 28th December 2018, 22:12   #23184  |  Link
dbezerra
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Quote:
Originally Posted by SamuriHL View Post
That, however, was an interesting idea. I'm not getting drops with this. Definitely seems to be pointing to something with LAV.

EDIT: Spoke too soon. Nope, drops with this, as well, just in different spots.

EDIT 2: On a hunch I tried going back to the driver version Manni uses and it did not change anything. Thought it could be an nVidia issue. I'm on 416.94 (I won't touch the 417.xx drivers yet until they fix the HDR issues.....AGAIN). Just trying to give as much info as I can to help figure out what's going on. But drops in MPC-xx with and without internal LAV filters are still happening.
I also tried with MPC-BE and its internal filters. No go - drops as well. The same MKV playing from the same server works just fine on NVidia shield with the same receiver (Denon 3200) and JVC RS500 projector. The only variables are Windows 10 (Fall Edition), NVidia 1080 and MPC-HC+Lav filters/MPC-BE.
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Old 28th December 2018, 23:15   #23185  |  Link
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Quote:
Originally Posted by dbezerra View Post
I also tried with MPC-BE and its internal filters. No go - drops as well. The same MKV playing from the same server works just fine on NVidia shield with the same receiver (Denon 3200) and JVC RS500 projector. The only variables are Windows 10 (Fall Edition), NVidia 1080 and MPC-HC+Lav filters/MPC-BE.
Are you getting the drops in the same place as MPC-HC with LAV when playing with MPC-BE with internal filters? For me the drops are in different spots which is why I originally said it was good. It took a bit longer, but, it started happening. I'm on the latest Windows 10 build with all the updates, the last nVidia 416 driver (come on nVidia), and a 1060 ggb.
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Old 29th December 2018, 02:03   #23186  |  Link
Undead Sega
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Quote:
Originally Posted by nevcairiel View Post
Its a DirectShow filter, it can be used in any software which uses DirectShow for video decoding - which WMP is one of. Software which doesn't use DirectShow also cannot use a DirectShow filter. See how that works?
So sorry for my late reply, things in life got in the way and there has been ups and downs (back to being down again)!

Well when I used Premiere Pro awhile back with ffdshow at default settings, I can see it was active and doing the decoding of my MPEG-2 sources, which was unfortunately causing some glitches cause of the two programs conflicting, thus how I discovered it was doing the decoding (when I disabled it).

Also it was further evident when I saw the taskbar icon appearing at the bottom corner

So I can assure you that ffdshow was definitely doing some work, you can actually force it to in the setting of the program:


Is there no way you can implement the same thing for LAV filters??? It would help sooo much!
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Last edited by Undead Sega; 29th December 2018 at 02:05.
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Old 29th December 2018, 02:56   #23187  |  Link
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Upload your images somewhere else.
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Old 29th December 2018, 15:08   #23188  |  Link
LigH
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Usual suggestions: frupic, tinypic, imgur...
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Old 29th December 2018, 19:11   #23189  |  Link
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ffdshow only has a blacklist/whitelist option, which defines which applications are allowed to use it.

Which decoder is used is not controlled by the filters themselves. The application decides what to use. When using the standard graph builder it uses whatever decoder is set as preferred in Windows for a specific mediatype, or whichever filter has the highest merit.

You can use Codec Tweak Tool to change preferred decoder settings.
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Old 30th December 2018, 02:38   #23190  |  Link
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So how does ffdshow is able to decode video within Premiere Pro and LAV filters can't?
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Old 30th December 2018, 03:19   #23191  |  Link
LigH
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If Premiere Pro uses the default graph builder, it asks the DirectShow system: "Which filter can help me decoding this source?" - and ffdshow yells the loudest: "Here, I can best, use me!" ... so if you want to give LAV Filters a chance, you first need to tell ffdshow: "Shup up, this kind of source is not your task." by either deactivating this format in its DirectShow filter configuration, or even by uninstalling it ... or by making LAV Filters yell even louder than ffdshow (which is not easy, because ffdshow is already quite loud).

But if Premiere Pro uses a different algorithm to build its filter graphs, how shall we know what to do?
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Old 30th December 2018, 11:19   #23192  |  Link
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Quote:
Originally Posted by LigH View Post
Funny sample. DGIndexNV locks up, trying to open it to demux the audio. MKVToolnix-GUI ignores the stream; tsMuxeR GUI as well. PVAStrumento can't demux it.
TSPE 0.301 calls it: AC-3 (ATSC A/53B audio).
DGAVCIndex reports an interesting issue:
Sounds like there is in fact MPEG Audio in a stream multiplexed as if it was AC-3. But neither mode produces a sensible demultiplexed audio stream.
Sorry for the off-topic, but TS Doctor says the audio stream is (partly) encrypted and that's why it won't decode:
Quote:
Broadcast standard selected: DVB
Broadcast standard detected: DVB
PES WARNING: PID 07EA scrambled 66,67%

2027 (07EB): 90% = H264 Video (PES_StreamID E0 = Video_Stream_0) {00000001} [PCR,PTS,DTS]
2026 (07EA): 9% = [SCRAMBLED 66,67%]
0 (0000): 0% = PAT
2028 (07EC): 0% = PMT

Selecting PMT with PID 2028 (07EC) at position 00000725
CRC OK!
Conforming PMT entry 1 to DVB standard
Deleting PMT entry: PID 2025 (07E9) type 134 = Private stream type Audio DTS (DTS)
PID 07EA is encrypted and will be removed
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Old 3rd January 2019, 06:21   #23193  |  Link
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Which ffmpeg Version to use with LAVFilters 0.73.1

To anyone that has compiled LAVFilters 0.73.1.
Which version of ffmpeg are you using?
1)Tried cloning the master here (v3.4):
https://github.com/Nevcairiel/FFmpeg
First error is "missing avpriv_mpegts_add_stream"
2) Tried fork V3.3 from MPC-HC
https://github.com/mpc-hc/FFmpeg/releases
First error is "missing av_demuxer_iterate"
3) Official ffmpeg site
https://www.ffmpeg.org/download.html
Missing lots of things as expected.
Please let me know if I am posting to the wrong area.

Any help greatly appreciated!
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Old 3rd January 2019, 10:05   #23194  |  Link
nevcairiel
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The version of FFmpeg LAV uses is referenced both in the readme as well as the first post in this thread, as well as directly linked to the sources through a Git submodule. It should really not be that hard to find it.
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Old 4th January 2019, 04:26   #23195  |  Link
Megalith
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Why does LAV Audio output in 32-bit float for 24-bit TrueHD and DTS-HD MA tracks? Doesn't that mean the track is no longer bit-perfect?

EDIT: Okay, apparently it does on a technical level, but some DACs seem to sound different when the bit-depth is upconverted...

Last edited by Megalith; 4th January 2019 at 04:37.
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Old 4th January 2019, 04:45   #23196  |  Link
huhn
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integar -> float conversation are "lossy".

are you using the mixer or something? this will turn the audio into float point because that's more "accurate" lossy processing is usually better done in float with audio in mind.

and you wouldn't even believe what a DAC has to do to lossless audio before it is doing the conversation...
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Old 4th January 2019, 05:31   #23197  |  Link
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Oh, duh, yes...the mixer is active, as I only have a stereo setup.
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Old 4th January 2019, 13:04   #23198  |  Link
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Quote:
Originally Posted by Megalith View Post
but some DACs seem to sound different when the bit-depth is upconverted...
No, they don't.
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Old 4th January 2019, 18:29   #23199  |  Link
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Quote:
Originally Posted by Megalith View Post
Why does LAV Audio output in 32-bit float for 24-bit TrueHD and DTS-HD MA tracks? Doesn't that mean the track is no longer bit-perfect?
No, single-precious float can represent all possible 24-bit integers.

https://en.wikipedia.org/wiki/Single...g-point_format

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Originally Posted by Megalith View Post
EDIT: Okay, apparently it does on a technical level, but some DACs seem to sound different when the bit-depth is upconverted...
There's no "upconverting" unless you think that 24 and 24.0 are different numbers.
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Old 4th January 2019, 23:42   #23200  |  Link
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Quote:
Originally Posted by el Filou View Post
Sorry for the off-topic, but TS Doctor says the audio stream is (partly) encrypted and that's why it won't decode:
Hi, yes you are correct. I was able to solve the problem by fixing a descrambling bug in the software. Audio plays ok now. Thanks.
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