On Sun, 5 Jul 2015, Carl Eugen Hoyos wrote:
Dani A <danix4u-at-yahoo.com <at> ffmpeg.org> writes:
Now, how can I recompile ffmpeg again?
If you cannot recompile, only changeroot was
a relevant tip for you.
Is there a specific program I can use to
disable the non wanted functions?
No, the configure script is sufficient.
You can do things like:
$ ./configure --disable-everything --enable-protocol=file
--enable-demuxer=avi --enable-decoder=ac3,mpeg4
--enable-parser=ac3,mpeg4 --enable-encoder=h26*,pcm*
--enable-muxer=matroska
Also, how can I use the codec_whitelist
and the format_whitelist, are those
switches to use with the ffmpeg command
just as the -moveflags?
No, whitelists are only useful if you are
using the libraries, not if you are using
the ffmpeg executable.
Are you sure? I think it has an effect on ffmpeg as well:
ffmpeg -codec_whitelist dummy -f lavfi -i 'aevalsrc=0:duration=10' dummy.wav
ffmpeg version 2.6.3 Copyright (c) 2000-2015 the FFmpeg developers
built with gcc 4.8 (SUSE Linux)
configuration: --shlibdir=/usr/lib64 --prefix=/usr
--mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared
--disable-static --enable-debug --disable-stripping
--extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g' --enable-pic
--optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g' --enable-gpl --enable-x11grab
--enable-version3 --enable-pthreads --datadir=/usr/share/ffmpeg
--enable-avfilter --enable-libpulse --enable-libwebp --enable-libvpx
--enable-libopus --enable-libmp3lame --enable-libvorbis --enable-libtheora
--enable-libspeex --enable-libxvid --enable-libx264 --enable-libx265
--enable-libschroedinger --enable-libgsm --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-postproc --enable-libdc1394
--enable-librtmp --enable-libfreetype --enable-avresample
--enable-libtwolame --enable-libvo-aacenc --enable-gnutls --enable-libass
--enable-frei0r --enable-libcelt --enable-libcdio --enable-ladspa
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
[NULL @ 0x1114320] Codec (pcm_f64le) not on whitelist
Input #0, lavfi, from 'aevalsrc=0:duration=10':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Audio: pcm_f64le, 44100 Hz, mono, dbl, 2822 kb/s
File 'dummy.wav' already exists. Overwrite ? [y/N] y
[pcm_f64le @ 0x111c3e0] Codec (pcm_f64le) not on whitelist
Output #0, wav, to 'dummy.wav':
Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
Metadata:
encoder : Lavc56.26.100 pcm_s16le
Stream mapping:
Stream #0:0 -> #0:0 (pcm_f64le (native) -> pcm_s16le (native))
Error while opening decoder for input stream #0:0 : Invalid argument
Regards,
Marton
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