[FFmpeg-user] unknown decoder libvpx

[Jun Jie Pang]

On Wed, Jan 22, 2014 at 8:24 PM, Christian Ebert <blacktrash at gmx.net> wrote:

> * Leo Izen on Wednesday, January 22, 2014 at 01:48:57 -0500
> > On 01/22/2014 12:53 AM, Jun Jie Pang wrote:
> >> However, when i run ffmpeg,
> >> $ffmpeg -f x11grab -r 25 -s 1280x720 -i :2.0 -vcodec libvpx out.webm
> >> I encountered with an error of "Unknown encoder 'libvpx' "
> >> Anyone happens to know what went wrong ?
> >
> > libvpx now comes with vp8 AND vp9 support. You need to do
> > -vcodec libvpx_vp8
> > OR
> > -vcodec libvpx_vp9
> > depending on whether you want vp8 or vp9 as your video codec.
>
> Are you sure?
>
> ffmpeg -codecs | fgrep vpx
> ffmpeg version N-60087-g94a5241 Copyright (c) 2000-2014 the FFmpeg
> developers
>   built on Jan 22 2014 12:20:48 with Apple LLVM version 5.0
> (clang-500.2.79) (based on LLVM 3.3svn)
>   configuration: --enable-gpl --enable-version3 --enable-nonfree
> --disable-network --disable-ffserver --enable-shared --enable-libfdk-aac
> --enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame
> --enable-libtheora --enable-libvorbis --enable-libvpx --enable-librtmp
> --extra-cflags=-I/sw/include --extra-libs=-L/sw/lib
>   libavutil      52. 63.100 / 52. 63.100
>   libavcodec     55. 48.102 / 55. 48.102
>   libavformat    55. 25.101 / 55. 25.101
>   libavdevice    55.  5.102 / 55.  5.102
>   libavfilter     4.  1.100 /  4.  1.100
>   libswscale      2.  5.101 /  2.  5.101
>   libswresample   0. 17.104 /  0. 17.104
>   libpostproc    52.  3.100 / 52.  3.100
>  DEV.L. vp8                  On2 VP8 (decoders: vp8 libvpx ) (encoders:
> libvpx )
>  DEV.L. vp9                  Google VP9 (decoders: vp9 libvpx-vp9 )
> (encoders: libvpx-vp9 )
>
> Looks like libvpx is kept for backwards compatibility and vp9 is
> called libvpx-vp9.
>
> --
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>
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>

 I'm so sorry... My bad >_<. I've forgotten to make a ffmpeg_sources
directory... Turns out i've been installing all the dependencies in each
other's folder!
By the way, "-vcodec libvpx" still works for me even after i do a git pull
from libvpx...

Thank you!!!!