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?