[FFmpeg-user] mp3 5.1 possible?

Roger Pack rogerdpack2 at gmail.com
Wed Oct 3 23:58:30 CEST 2012


Is ffmpeg -> 5.1 mp3 possible?

At least I know I didn't get it working easily with libmp3lame.
Thanks!
-roger-

ffmpeg -i sintel.mpg -vn -acodec libmp3lame -ac 6 yo.mp3
ffmpeg version N-44726-gfd63c2f Copyright (c) 2000-2012 the FFmpeg developers
  built on Sep 24 2012 14:45:43 with gcc 4.7.1 (GCC)
  configuration: --enable-memalign-hack --arch=x86_64 --enable-gpl
--enable-libx264 --enable-avisynth --enable-libxvid
--target-os=mingw32
--cross-prefix=/home/rogerdpack/dev/ffmpeg-windows-build-helpers/sandbox/mingw-w64-x86_64/bin/x86_64-w64-mingw32-
--pkg-config=pkg-config --enable-libmp3lame --enable-version3
--enable-libvo-aacenc --enable-libvpx --extra-libs=-lws2_32
--extra-libs=-lpthread --enable-zlib --extra-libs=-lwinmm
--extra-libs=-lgdi32 --enable-librtmp --enable-libvorbis
--enable-libtheora --enable-libspeex --enable-libopenjpeg
--enable-gnutls --enable-libgsm --enable-libfreetype
--disable-optimizations --enable-mmx --disable-postproc
--enable-fontconfig --enable-libass --enable-libutvideo
--enable-libopus --disable-w32threads
--extra-cflags=-DPTW32_STATIC_LIB --enable-runtime-cpudetect
  libavutil      51. 73.101 / 51. 73.101
  libavcodec     54. 58.100 / 54. 58.100
  libavformat    54. 28.101 / 54. 28.101
  libavdevice    54.  2.101 / 54.  2.101
  libavfilter     3. 17.100 /  3. 17.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
[mpeg2video @ 0000000001EE1BE0] ac-tex damaged at 40 7
[mpeg2video @ 0000000001EE1BE0] Warning MVs not available
[mpeg2video @ 0000000001EE1BE0] concealing 1035 DC, 1035 AC, 1035 MV
errors in I frame
[mpeg @ 0000000001EE03E0] max_analyze_duration 5000000 reached at 5024000
Input #0, mpeg, from 'sintel.mpg':
  Duration: 00:14:47.58, start: 0.233367, bitrate: 4132 kb/s
    Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480
[SAR 32:27 DAR 16:9], 7000 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94
tbc
    Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), s16, 448 kb/s
File 'yo.mp3' already exists. Overwrite ? [y/N] y
Specified channel_layout is not supported
Output #0, mp3, to 'yo.mp3':
    Stream #0:0: Audio: mp3, 48000 Hz, 5.1, s16
Stream mapping:
  Stream #0:1 -> #0:0 (ac3 -> libmp3lame)
Error while opening encoder for output stream #0:0 - maybe incorrect
parameters such as bit_rate, rate, width or height


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