LAV Filters - DirectShow Media Splitter and Decoders

[nevcairiel]

Originally Posted by Blight

Nev:
Any chance of adding an interface so I can assign a user-agent and referrer strings or possibly just a formatting option in the URL specified?

For example "https://www.somesite.org/stream|user-agent|referrer" ?

I've added a new interface for the next version of LAV to explicitly specify the user agent and referer when opening an URL.

I didn't particularly like parsing it out of a string, so dedicated function it is.

https://github.com/Nevcairiel/LAVFil...rceFilterLAV.h

It should be exposed on the LAVSplitterSource filter, just like IFileSourceFilter

[Blight]

Originally Posted by nevcairiel

I've added a new interface for the next version of LAV to explicitly specify the user agent and referer when opening an URL.

I didn't particularly like parsing it out of a string, so dedicated function it is.

https://github.com/Nevcairiel/LAVFil...rceFilterLAV.h

It should be exposed on the LAVSplitterSource filter, just like IFileSourceFilter

Very cool, I'll try it out once the new version comes out.

Just a quick question, when is the best time to set the referrer/user-agent values, before assigning the URL? before running the graph?

[Prinz]

Originally Posted by Blight

Very cool, I'll try it out once the new version comes out.

According to build log on https://files.1f0.de/lavf/nightly/ , this change is already included in the lasted nightly build: LAVFilters-0.79.2-9.exe

So you should be able to test it out already.

[lvqcl]

Originally Posted by Blight

Just a quick question, when is the best time to set the referrer/user-agent values

???

[nevcairiel]

Originally Posted by Blight

Just a quick question, when is the best time to set the referrer/user-agent values, before assigning the URL? before running the graph?

The interface has you pass it in together with the URL you open, so that question doesn't even apply.
The function _replaces_ the Load function from IFileSourceFilter, so you just call this one if you want to specify this detail.

[Siso]

There is a problem with subtitle workshop latest versions with lav filters LAVFilters-0.79.2-5, LAVFilters-0.79.2-6 and LAVFilters-0.79.2-9. I'm attaching a shot of the error. Version LAVFilters-0.79.2-3 works fine without the error. The error happens when I open mkv files with external srt subtitles.

[nevcairiel]

Originally Posted by Siso

There is a problem with subtitle workshop latest versions with lav filters LAVFilters-0.79.2-5, LAVFilters-0.79.2-6 and LAVFilters-0.79.2-9. I'm attaching a shot of the error. Version LAVFilters-0.79.2-3 works fine without the error. The error happens when I open mkv files with external srt subtitles.

This should hopefully be resolved in the next build.

[Siso]

Originally Posted by nevcairiel

This should hopefully be resolved in the next build.

Thank you. It is working properly.

[tormento]

Do LAV Filters support HEVC version 3 profiles?

[LigH]

Watch ffplay trying to play it:

[hevc @ 000001f898a18ac0] Error parsing NAL unit #0.
[hevc @ 000001f898adea80] Could not find ref with POC 165
[hevc @ 000001f898adea80] Could not find ref with POC 160
[hevc @ 000001f898adea80] SCC profile is not yet implemented in hevc native decoder.
[hevc @ 000001f898adea80] Error parsing NAL unit #0.
[hevc @ 000001f898ba4bc0] alignment_bit_equal_to_one=0
[hevc @ 000001f898ba4bc0] Skipping invalid undecodable NALU: 0

The libavcodec HEVC decoder does not yet implement it. So LAV Filters, using this decoder, could not either.

[Blight]

I am writing a client for Emby/JellyFin and as a security measure, these media servers require an authentication token passed in the header field when opening the stream, for example:
X-Emby-Token=e70c7c19bf134fb2cb9032867715de81

Is there a way to specify custom headers when opening a stream? If not, can you please add one?

[Blight]

I've encountered another issue with LAV Source/Splitter with regards to network streaming from a remote Emby server.

When seeking or changing a subtitle track, there's a large pause, anywhere from 1-25 seconds (I confirmed this issue exists in GraphStudio/GraphEdit).
However, if I use libVLC to seek or switch subtitle track, it's nearly instant.

Is there an opportunity to improve this behavior?

[DMU]

Hello everyone.
Need your advice.
After many years of problem-free viewing of 4K UHD (hevc), after reinstalling the OS (Windows 10 IoT Enterprise LTSC), something appeared that I cannot fix and understand. A few (3-10) minutes after playing a video, image freezes and sound stutters. The decoder load reaches 100% (Screenshot). If I press Pause, wait until the load drops to 0%, and then press Play again, the video first plays faster, and then starts playing normally again. On the same screenshot, the decoder load is shown at the bottom right. After a few minutes, everything repeats.

Tried different types of decoders (D3D11 / DXVA2 / native / copyback) - did not help.
Video playback is local, not over the network.
MPC-HC latest from github.

[LigH]

Can you monitor CPU or GPU temperatures?

[DMU]

It is definitely not a matter of overheating. The PC is currently installed in a cool room. The processor (APU) temperature does not rise above 40 degrees.

[Sunspark]

There is a decoder setting you haven't tried yet.. "None".. to have the CPU do the decoding. The purpose of testing with this setting would be to rule out the video card's involvement with the decoding process and see if the freezes happen again.

If it does, then at least you know it's not the decoder. So in that scenario it might be the video drivers.. so then cleanly remove them with DDU and install older drivers, perhaps the ones that MS already approved in the driver catalog.

[DMU]

Checked. 4-core APU is loaded by about 80%. Software decoding/playback is smooth. No glitches or drops.

[Sunspark]

There are other decoders you can try, you can make them work with HC too.

You can install MPC-BE's decoder from the standalone filters and configure HC to use it, or probably easier for you, to just install BE as a separate player and select madvr as the renderer from the dropdown. See if the stuttering still happens.

[v0lt]

Originally Posted by DMU2009504

After many years of problem-free viewing of 4K UHD (hevc), after reinstalling the OS (Windows 10 IoT Enterprise LTSC), something appeared that I cannot fix and understand. A few (3-10) minutes after playing a video, image freezes and sound stutters. The decoder load reaches 100% (Screenshot).
R3 3200G / Vega8

In my experience, Vega 8 graphics are not enough to reliably play 4k HDR 10-bit. 30 fps videos are still watchable, but problems arise at 60 fps. Also, remember that the load increases for high-bitrate videos.
If you did not have the problem before, then the new driver could have had an effect.
It is also worth monitoring the frequencies of the CPU, GPU and memory.

[huhn]

Originally Posted by DMU

Hello everyone.
Need your advice.
After many years of problem-free viewing of 4K UHD (hevc), after reinstalling the OS (Windows 10 IoT Enterprise LTSC), something appeared that I cannot fix and understand. A few (3-10) minutes after playing a video, image freezes and sound stutters. The decoder load reaches 100% (Screenshot). If I press Pause, wait until the load drops to 0%, and then press Play again, the video first plays faster, and then starts playing normally again. On the same screenshot, the decoder load is shown at the bottom right. After a few minutes, everything repeats.

Tried different types of decoders (D3D11 / DXVA2 / native / copyback) - did not help.
Video playback is local, not over the network.
MPC-HC latest from github.

hardware decoder usually really don't care about bit rate. try a different power state.

AMD hardware decoder are utterly trash they can barely do 60 in the best of cases for what ever reason. they just do the bare minimum and hope it is enough and it looks like not this time. stick to native decode you have no bandwidth anyway.