FFMPEG Audio filters
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07-09-2019, 10:06
(This post was last modified: 07-09-2019 10:13 by lafuente.)
Post: #1
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FFMPEG Audio filters
Hello Simon,
I come close to you because I'd like to know if it is possible to apply specific command line to ffmpeg in minimserver ? I'd like to test some filters describes here : https://ffmpeg.org/ffmpeg-filters.html#Audio-Filters The goal is not to transcode, but rather to use "superequalizer" filter or "treble, highshelf", per example. Thanks, Manu |
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07-09-2019, 10:48
Post: #2
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RE: FFMPEG Audio filters
I think the section at the bottom of the MinimStream User Guide is what you need
https://minimstreamer.com/userguide.html |
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07-09-2019, 11:24
Post: #3
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RE: FFMPEG Audio filters
To expand slightly on Peter@57m's reply, the convOut option enables you to specify any FFmpeg filtering options. The user guide page gives some specific examples but is not an exhaustive list.
FFmpeg and convOut are used by MinimStreamer only when transcoding is specified. A typical choice is to set the transcoding output type to WAV (with no change to sample rate and bit depth) as WAV is lossless and works well with all renderers. |
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07-09-2019, 17:32
(This post was last modified: 07-09-2019 17:42 by lafuente.)
Post: #4
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RE: FFMPEG Audio filters
Thank,
So I tried : stream.transcode : aiff:wav;, flac:wav; This seem OK. After, as sample, I tried : stream.options : convOut=-lavfi equalizer=f=1000:t=q:w=1:g=2 Seem OK Then I tried to add a second argument : stream.options : convOut= -lavfi equalizer=f=1000:t=q:w=1:g=2,equalizer=f=100:t=q:w=2:g=-5 Not OK Can someone point me where is my mistake ? thank again |
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07-09-2019, 17:45
Post: #5
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RE: FFMPEG Audio filters
And this seem to go :
convOut= -lavfi "equalizer=f=1000:t=q:w=1:g=2,equalizer=f=100:t=q:w=2:g=-5" At least, minimserver don't tell that the options are not valid |
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07-09-2019, 20:12
Post: #6
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RE: FFMPEG Audio filters
You need the double quotes because you have a comma in your convOut string. Without these double quotes, MinimStreamer thinks the text that follows the comma is some other stream.options setting.
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