[FFmpeg-user] Dynamic range compression fail with: invalid argument

[Android PowerUser]

Paul B Mahol <onemda at gmail.com> schrieb am Sa., 23. Okt. 2021, 15:45:

> On Sat, Oct 23, 2021 at 3:26 PM Android PowerUser <tschikruma at gmail.com>
> wrote:
>
> > I try
> >
> > ffmpeg -y -i "/storage/emulated/0/Download/(M4A_128K).m4a"
> > compand=0|0:1|1:-90/-900|-70/-70|-30/-9|0/-3:6:0:0:0
> > "/storage/emulated/0/Download/(M4A_128K)_1.m4a"
> >
> > for dynamic range compression, but it call back: invalid argument
> >
> > Detail:
> > ffmpeg -y -i "/storage/emulated/0/Download/(M4A_128K).m4a"
> > compand=0|0:1|1:-90/-900|-70/-70|-30/-9|0/-3:6:0:0:0
> > "/storage/emulated/0/Download/(M4A_128K)_1.m4a"
> >
>
> Where is "-af "  part?


mega!  IT WORKS. Huge thanks👍👍👍

But is not in any documentation.  I have no idea what that is for.

>
> >
> > ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
> >   built with gcc 4.9.x (GCC) 20150123 (prerelease)
> >   configuration: --enable-version3 --enable-gpl --enable-nonfree
> > --disable-indev=v4l2 --enable-libmp3lame --enable-libx264
> --enable-libx265
> > --enable-libvpx --enable-libvorbis --enable-libtheora --enable-libopus
> > --enable-libfdk-aac --enable-libfreetype --enable-libass
> > --enable-libfribidi --enable-fontconfig --enable-pthreads
> --enable-libxvid
> > --enable-filters --enable-openssl --enable-librtmp
> > --disable-protocol='udp,udplite' --enable-libopencore-amrwb
> > --enable-libopencore-amrnb --enable-libvo-amrwbenc --enable-libspeex
> > --enable-libsoxr --enable-libwebp --enable-libxml2 --enable-libopenh264
> > --enable-mediacodec --enable-jni
> >
> >
> --prefix=/home/silentlexx/AndroidstudioProjects/ffmpeg/ffmpeg/build/arm64-api21-r13b
> >
> >
> --sysroot=/home/silentlexx/Android/android-ndk-r13b/platforms/android-21/arch-arm64
> > --arch=arm64 --disable-shared --enable-static --enable-pic
> --enable-ffmpeg
> > --disable-ffplay --disable-ffprobe --disable-ffnvcodec --disable-avdevice
> > --disable-debug --disable-doc --disable-htmlpages --disable-manpages
> > --disable-podpages --disable-txtpages --disable-symver
> >
> >
> --cross-prefix=/home/silentlexx/Android/android-ndk-r13b/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin/aarch64-linux-android-
> > --target-os=android --enable-cross-compile --pkg-config-flags=--static
> > --extra-libs='-lgnustl_static -lm -lpng -l:libz.so -lpthread'
> --enable-asm
> > --enable-neon --enable-libxavs2 --enable-libdav1d --enable-libaom
> > --disable-runtime-cpudetect --enable-small
> >   libavutil      56. 70.100 / 56. 70.100
> >   libavcodec     58.134.100 / 58.134.100
> >   libavformat    58. 76.100 / 58. 76.100
> >   libavfilter     7.110.100 /  7.110.100
> >   libswscale      5.  9.100 /  5.  9.100
> >   libswresample   3.  9.100 /  3.  9.100
> >   libpostproc    55.  9.100 / 55.  9.100
> > [mov,mp4,m4a,3gp,3g2,mj2 @ 0xb400007077e1a000] Unknown cover type: 0x1.
> > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Download/
> >   Metadata:
> >     major_brand     : M4A
> >     minor_version   : 512
> >     compatible_brands: isomiso2
> >   Duration: 00:03:03.62, start: 0.000000, bitrate: 129 kb/s
> >   Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo,
> fltp,
> > 125 kb/s (default)
> >     Metadata:
> >       handler_name    : SoundHandler
> >       vendor_id       : [0][0][0][0]
> > [NULL @ 0xb400007077e1ac00] Unable to find a suitable output format for
> > 'compand=0|0:1|1:-90/-900|-70/-70|-30/-9|0/-3:6:0:0:0'
> > compand=0|0:1|1:-90/-900|-70/-70|-30/-9|0/-3:6:0:0:0: Invalid argument
> > _______________________________________________
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> > ffmpeg-user at ffmpeg.org
> > https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
> >
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