FFMPEG sidechaincompress not working as it should?

Previous Topic Next Topic
 
classic Classic list List threaded Threaded
5 messages Options
Reply | Threaded
Open this post in threaded view
|

FFMPEG sidechaincompress not working as it should?

Frank @ Taapo
I have been trying to get sidechaining to work with FFMPEG, but my complex
filter skills are lacking.

I'm running two aif files into ffmpeg, hoping the voice would "duck" the
background music when the voice-over is speaking. But I get an error with
this command-line (on Windows, with latest FFMPEG binary):

ffmpeg.exe -i temp_music.aif -i temp_voice.aif -filter_complex
"[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.1:ratio=5[bg];
[bg][mix]amerge[fin‌​al]" -map [final] final.mp3

Everything decodes fine:

ffmpeg version N-87353-g183fd30 Copyright (c) 2000-2017 the FFmpeg
developers
  built with gcc 7.2.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda
--enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx
--enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig
--enable-frei0r --enable-gnutls --enable-iconv --enable-libass
--enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype
--enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
--enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp
--enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
--enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
--enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 76.100 / 55. 76.100
  libavcodec     57.106.101 / 57.106.101
  libavformat    57. 82.101 / 57. 82.101
  libavdevice    57.  8.101 / 57.  8.101
  libavfilter     6.105.100 /  6.105.100
  libswscale      4.  7.103 /  4.  7.103
  libswresample   2.  8.100 /  2.  8.100
  libpostproc    54.  6.100 / 54.  6.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, aiff, from 'temp_music.aif':
  Duration: 00:01:26.68, start: 0.000000, bitrate: 1536 kb/s
    Stream #0:0: Audio: pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s
Guessed Channel Layout for Input Stream #1.0 : stereo
Input #1, aiff, from 'temp_voice.aif':
  Duration: 00:01:26.68, start: 0.000000, bitrate: 1536 kb/s
    Stream #1:0: Audio: pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s
Output with label 'final' does not exist in any defined filter graph, or
was already used elsewhere.

But then I receive an error:

Output with label 'final' does not exist in any defined filter graph, or
was already used elsewhere.

Anybody knows why?

_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".
Reply | Threaded
Open this post in threaded view
|

Re: FFMPEG sidechaincompress not working as it should?

Paul B Mahol
On 10/23/17, Frank @ Taapo <[hidden email]> wrote:

> I have been trying to get sidechaining to work with FFMPEG, but my complex
> filter skills are lacking.
>
> I'm running two aif files into ffmpeg, hoping the voice would "duck" the
> background music when the voice-over is speaking. But I get an error with
> this command-line (on Windows, with latest FFMPEG binary):
>
> ffmpeg.exe -i temp_music.aif -i temp_voice.aif -filter_complex
> "[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.1:ratio=5[bg];
> [bg][mix]amerge[fin**al]" -map [final] final.mp3
>
> Everything decodes fine:
>
> ffmpeg version N-87353-g183fd30 Copyright (c) 2000-2017 the FFmpeg
> developers
>   built with gcc 7.2.0 (GCC)
>   configuration: --enable-gpl --enable-version3 --enable-cuda
> --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx
> --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig
> --enable-frei0r --enable-gnutls --enable-iconv --enable-libass
> --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype
> --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug
> --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
> --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp
> --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora
> --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
> --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
> --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid
> --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
>   libavutil      55. 76.100 / 55. 76.100
>   libavcodec     57.106.101 / 57.106.101
>   libavformat    57. 82.101 / 57. 82.101
>   libavdevice    57.  8.101 / 57.  8.101
>   libavfilter     6.105.100 /  6.105.100
>   libswscale      4.  7.103 /  4.  7.103
>   libswresample   2.  8.100 /  2.  8.100
>   libpostproc    54.  6.100 / 54.  6.100
> Guessed Channel Layout for Input Stream #0.0 : stereo
> Input #0, aiff, from 'temp_music.aif':
>   Duration: 00:01:26.68, start: 0.000000, bitrate: 1536 kb/s
>     Stream #0:0: Audio: pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s
> Guessed Channel Layout for Input Stream #1.0 : stereo
> Input #1, aiff, from 'temp_voice.aif':
>   Duration: 00:01:26.68, start: 0.000000, bitrate: 1536 kb/s
>     Stream #1:0: Audio: pcm_s16be, 48000 Hz, stereo, s16, 1536 kb/s
> Output with label 'final' does not exist in any defined filter graph, or
> was already used elsewhere.
>
> But then I receive an error:
>
> Output with label 'final' does not exist in any defined filter graph, or
> was already used elsewhere.
>
> Anybody knows why?

outputs pads names apparently can not have more than 2 chars.
_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".
Reply | Threaded
Open this post in threaded view
|

Re: FFMPEG sidechaincompress not working as it should?

Carl Eugen Hoyos-2
In reply to this post by Frank @ Taapo
2017-10-23 7:03 GMT+02:00 Frank @ Taapo <[hidden email]>:

> ffmpeg.exe -i temp_music.aif -i temp_voice.aif -filter_complex
> "[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.1:ratio=5[bg];

> [bg][mix]amerge[fin‌al]" -map [final] final.mp3

The letter "n‌" in the name of the output pad is another letter than "n" in the
name of the pad you want to map - type the first "final" again.

Carl Eugen
_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".
Reply | Threaded
Open this post in threaded view
|

Re: FFMPEG sidechaincompress not working as it should?

Paul B Mahol
On 1/8/18, Carl Eugen Hoyos <[hidden email]> wrote:

> 2017-10-23 7:03 GMT+02:00 Frank @ Taapo <[hidden email]>:
>
>> ffmpeg.exe -i temp_music.aif -i temp_voice.aif -filter_complex
>> "[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.1:ratio=5[bg];
>
>> [bg][mix]amerge[fin*al]" -map [final] final.mp3
>
> The letter "n*" in the name of the output pad is another letter than "n" in
> the
> name of the pad you want to map - type the first "final" again.

LOL

How something like this is even possible?
_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".
Reply | Threaded
Open this post in threaded view
|

Re: FFMPEG sidechaincompress not working as it should?

Carl Eugen Hoyos-2
2018-01-08 8:39 GMT+01:00 Paul B Mahol <[hidden email]>:

> On 1/8/18, Carl Eugen Hoyos <[hidden email]> wrote:
>> 2017-10-23 7:03 GMT+02:00 Frank @ Taapo <[hidden email]>:
>>
>>> ffmpeg.exe -i temp_music.aif -i temp_voice.aif -filter_complex
>>> "[1:a]asplit=2[sc][mix];[0:a][sc]sidechaincompress=threshold=0.1:ratio=5[bg];
>>
>>> [bg][mix]amerge[fin*al]" -map [final] final.mp3
>>
>> The letter "n*" in the name of the output pad is another letter than
>> "n" in the name of the pad you want to map - type the first "final"
>> again.
>
> LOL

(Note that it was your email / your mailer that told me, asterisks were
added for the control sequences.)

> How something like this is even possible?

I suspect Ctrl-something instead or before or after pressing "n",

Carl Eugen
_______________________________________________
ffmpeg-user mailing list
[hidden email]
http://ffmpeg.org/mailman/listinfo/ffmpeg-user

To unsubscribe, visit link above, or email
[hidden email] with subject "unsubscribe".