[FFmpeg-user] Converting CAF file

[Paul B Mahol]

On 1/13/19, Hafez Adnan <hafezadnan at gmail.com> wrote:
> Hi All,
>
> Kindly I need your support to convert the CAF file to MP3 format.
>
> I am using the following command, but I getting the following error:
>
> ffmpeg -i 40c90a1b16acc9f88ee700d2d812af63..caf test.caf
>
> ffmpeg version 2.6.8 Copyright (c) 2000-2016 the FFmpeg developers

Too old version.


>   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
>   configuration: --prefix=/usr --bindir=/usr/bin
> --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
> --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2
> -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches
> -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-gnutls
> --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394
> --enable-libfaac --enable-nonfree --enable-libfdk-aac --enable-nonfree
> --disable-indev=jack --enable-libfreetype --enable-libgsm
> --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus
> --enable-libpulse --enable-libschroedinger --enable-libsoxr
> --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2
> --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab
> --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads
> --disable-static --enable-shared --enable-gpl --disable-debug
> --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
>   libavutil      54. 20.100 / 54. 20.100
>   libavcodec     56. 26.100 / 56. 26.100
>   libavformat    56. 25.101 / 56. 25.101
>   libavdevice    56.  4.100 / 56.  4.100
>   libavfilter     5. 11.102 /  5. 11.102
>   libavresample   2.  1.  0 /  2.  1.  0
>   libswscale      3.  1.101 /  3.  1.101
>   libswresample   1.  1.100 /  1.  1.100
>   libpostproc    53.  3.100 / 53.  3.100
> [caf @ 0x1b5a100] Estimating duration from bitrate, this may be inaccurate
> Guessed Channel Layout for  Input Stream #0.0 : mono
> Input #0, caf, from '40c90a1b16acc9f88ee700d2d812af63..caf':
>   Duration: 00:00:18.62, start: 0.000000, bitrate: 16 kb/s
>     Stream #0:0: Audio: ilbc (ilbc / 0x63626C69), 8000 Hz, 1 channels, 15
> kb/s
> *No decoder for stream #0:0, filtering impossible*
> Error opening filters!
>
>
> ----------
> *Sometimes I get the below errors :*
>
>
> *[root at test]# ffmpeg -i 8387fe50349724b2d4a9ff9052b47355..caf test1.mp3*
>
> ffmpeg version 2.6.8 Copyright (c) 2000-2016 the FFmpeg developers
>   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
>   configuration: --prefix=/usr --bindir=/usr/bin
> --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffmpeg
> --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2
> -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
> -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches
> -m64 -mtune=generic' --enable-bzlib --disable-crystalhd --enable-gnutls
> --enable-ladspa --enable-libass --enable-libcdio --enable-libdc1394
> --enable-libfaac --enable-nonfree --enable-libfdk-aac --enable-nonfree
> --disable-indev=jack --enable-libfreetype --enable-libgsm
> --enable-libmp3lame --enable-openal --enable-libopenjpeg --enable-libopus
> --enable-libpulse --enable-libschroedinger --enable-libsoxr
> --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libv4l2
> --enable-libx264 --enable-libx265 --enable-libxvid --enable-x11grab
> --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads
> --disable-static --enable-shared --enable-gpl --disable-debug
> --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
>   libavutil      54. 20.100 / 54. 20.100
>   libavcodec     56. 26.100 / 56. 26.100
>   libavformat    56. 25.101 / 56. 25.101
>   libavdevice    56.  4.100 / 56.  4.100
>   libavfilter     5. 11.102 /  5. 11.102
>   libavresample   2.  1.  0 /  2.  1.  0
>   libswscale      3.  1.101 /  3.  1.101
>   libswresample   1.  1.100 /  1.  1.100
>   libpostproc    53.  3.100 / 53.  3.100
> [caf @ 0x1ff9100] skipping CAF chunk: 3098EDCC (0???), size
> -2884684189692751888
> *8387fe50349724b2d4a9ff9052b47355..caf: Invalid data found when processing
> input*

Could you share such files like this one above?