Hi Ryan,
I have uninstalled everything and started again. Installing mpeg4ip
and mkvtoolnix
first, followed by ffmpeg, a52, faac, faad, lame, x264 and xvid.
I am not sure if this is the right place for this next question, but
hopefully you or
someone else may have encountered this next problem.
I have been able to extract a video track from and .mkv file, but
when I try to convert
the audio to aac using the following:
ffmpeg -i file.mkv -vn -acodec aac -ac 2 audio.aac
I get 'unknown encoder aac'
It seems to start alright with the following:
FFmpeg version UNKNOWN, Copyright (c) 2000-2008 Fabrice Bellard, et al.
configuration: --prefix=/opt/local --disable-vhook --mandir=/opt/
local/share/man --enable-shared --enable-pthreads --disable-mmx --
cc=gcc-4.0 --enable-gpl --enable-liba52
libavutil version: 49.7.0
libavcodec version: 51.60.0
libavformat version: 52.18.0
libavdevice version: 52.0.0
built on Sep 27 2008 00:52:03, gcc: 4.0.1 (Apple Computer, Inc.
build 5370)
followed by many lines of this:
[matroska @ 0x1802800]Ignoring seekhead entry for ID=0x1549a966
[matroska @ 0x1802800]Ignoring seekhead entry for ID=0x1654ae6b
[matroska @ 0x1802800]Ignoring seekhead entry for ID=0x114d9b74
and ends with:
Input #0, matroska, from '/Users/TWcomputer/vid_convert/Thomson/
Thomson_WMV-HD_720p.mkv':
Duration: 00:04:39.56, start: 0.000000, bitrate: N/A
Stream #0.0: Attachment: 0x0000
Stream #0.1: Video: h264, yuv420p, 1280x720 [PAR 1:1 DAR 16:9],
30.00 tb(r)
Stream #0.2: Audio: vorbis, 44100 Hz, stereo
Unknown encoder 'aac'
I am not sure if ffmpeg has its own encoder or if it should try to
use faac. Can anyone suggest how to
solve this one.
Thanks,
Terrence
On 26 Sep 2008, at 02:52, Ryan Schmidt wrote:
On Sep 25, 2008, at 18:25, Mine wrote:
I am now trying to install mpeg4ip. During the build process, I
get the following message:
mp4.h is being used by the active faac port. Please deactivate this
port first, or use the -f flag to force the activation.
What is the best option? if I force the installation, does the
install overwrite the mp4.h
file or the link that faac has to that file. As I have not forced
installed before, am I right
in thinking that the command is 'sudo port -f install mpeg4ip'.
If deactivate is the way to go, is the command 'port disable
faac'. I searched the
macPorts info but I did not see a disable command.
The message means faac and mpeg4ip both want to install the same
file (mp4.h). Is the contents of these two files the same? If not,
then faac and mpeg4ip cannot be activate at the same time. Do you
need both? You may need to file a ticket so the maintainers of
these two ports can resolve this conflict. Unfortunately, mpeg4ip
has no maintainer, but maybe the maintainer of faac can take care
of it.
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