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Transcoder settings- Best Practice ?

 
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Transcoder settings- Best Practice ?
mvallevand
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Ontario Canada
Posts: 52,835
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Joined: May 2006
#11
2021-01-19, 08:29 PM
NextPVR doesn't have build in audio, so when LAV or other DirectShow decoders support AC-4. I have discussed the patch with Kodi devs and there is no interest in it at this stage but this addon is the best workaround for new. If there was ATSC 3.0 here in Canada I'd build Kodi with it for sure.

Also follow-up in the other thread, you will have errors since I never updated a Windows batch file to use with it but I can easily post one.

Martin
ferrels
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Posts: 19
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Joined: Mar 2010
#12
2021-02-03, 06:22 AM (This post was last modified: 2021-02-03, 08:12 AM by ferrels.)
I decided to build an ATSC3.0/AC-4 capable video player based on the code found here: https://github.com/itisyang/playerdemo

It only has 3 dependencies, SDL2, QT, and ffmpeg so I set about updating it to support richardpl's ffmpeg/AC-4 branch. I normally avoid github projects that depend on QT for several reasons but this project is very well-written and modular so it was very easy to compile it against the ffmpeg/AC-4 branch. The majority of my time was spent Anglicizing all the dialogs and menus because the author is Chinese and had hardcoded most of the menus and dialogs. I also added the ability to read mpeg TS files directly as that was missing. I've tested it on MKV files and TS files containing AC-4 audio streams and it works great so I suspect it will read any format supported by ffmpeg.

My build environment is Visual Studio 2015 and QT5.6 and the binary is 64-bit. My apologies to those who want 32-bit builds but I have no desire to re-tool my developer system which is entirely 64-bit.
I'm an applications developer, not a video (encode/decode) - (mux/demux) developer, so I will only be able to help you squash bugs in the UI and possibly add more file types.

You can download the Player here: https://www.dropbox.com/s/uuf16gxqs2s4bq...4.zip?dl=1

Just unzip the files to the folder of your choice and run the playerdemo.exe file.  It has all the playback controls that one would expect from a modern video player.

If you want to test it, here's a 40MB TS file with HEVC video encoding and AC-4 audio: https://www.dropbox.com/s/vzv66pz54phfsk....1.ts?dl=1

Anyway, I hope somebody will get some use out of this player. It was actually a pleasure to update and build, unlike VLC which is a total dumpster fire.

The keyboard shortcuts can be found under the About dialog, just right-click on the screen to bring up the context menu.

The player might be useful to users who don't want to fool around with ffmpeg to transcode the ATSC3.0/AC-4 streams that they've recorded as it allows for direct playback of ATSC3.0/AC-4 files.

Link to screenshot of player:  https://ibb.co/tZ3Zf05
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