Recently I upgraded my FFMPEG, FFPLAY, and FFPROBE and when I used FFPLAY to preview an FFMPEG script, it played the video without audio and got a "WASAPI can't initialize audio client error" error. Returning to an old version eliminated this error.
Searching the internet for this error I found multiple references to a workaround but I cannot find how this is done or why it needs to be done since my Windows 7 did not have this error in the earlier version and nothing has been changed as far as the audio is concerned.
Does anyone know how or why I can/should change my drivers and how this would be done. I have a Sound Blaster card and a Sound Blaster GUI to control the audio but there is no reference to setting to direct sound.???A workaround is to specify an alternate output driver. Set SDL_AUDIODRIVER environment variable value to the driver you want to use. Under windows 7, directsound and winmm both solved my issue.
Thanks
Budman111
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Same issue on my side - didn't try to solve it so can't help right now - will try later to check some hints.
Seem issue is quite old:
https://ffmpeg.zeranoe.com/forum/viewtopic.php?t=5192
https://stackoverflow.com/questions/46835811/ffplay-wasapi-cant-initialize-audio-clien...g-3-4-binaries
https://trac.ffmpeg.org/ticket/6891 -
It isn't a problem with your soundcard driver. FFPLAY defaults to WASAPI, one of several audio interfaces in Windows, and has a bug that prevents it from initializing. I've been using the mentioned workaround for a while.
At a command prompt type:
Code:set SDL_AUDIODRIVER=directsound
To set it permanently, at least until FFPLAY is fixed:
Code:setx SDL_AUDIODRIVER directsound
PB -
@autodidact... thanks for the explanation and the fix. Exactly what i needed. Since I run the ffplay preview from a script I should be able to add it to the script generating code.
I also assume that since it is only for that session, it should not mess up any other program using audio??
Thanks again. -
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