Le 22/04/12 13:00, pehache a écrit :
Hi,
I'm trying to convert a .mp4 file which contains 2 audio tracks to a
.mkv file, keeping the 2 tracks. I thought that using -map would be
enough, but clearly it isn't :
=================================================================
*****$ ffmpeg -i Good_Bye_Lenin.DVDRIP.HQ.deFR.mp4 -vcodec copy -acodec
copy -map 0.0 -map 0.1 -map 0.2 toto.mkv
ffmpeg version 0.7.11, Copyright (c) 2000-2011 the FFmpeg developers
built on Mar 17 2012 12:11:52 with gcc 4.2.1 (Apple Inc. build 5666)
(dot 3)
configuration: --prefix=/opt/local --enable-gpl --enable-postproc
--enable-swscale --enable-avfilter --enable-libmp3lame
--enable-libvorbis --enable-libtheora --enable-libdirac
--enable-libschroedinger --enable-libopenjpeg --enable-libxvid
--enable-libx264 --enable-libvpx --enable-libspeex
--mandir=/opt/local/share/man --enable-shared --enable-pthreads
--cc=/usr/bin/gcc-4.2 --arch=x86_64 --enable-yasm
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x102052000] max_analyze_duration 5000000
reached at 5013333
Seems stream 0 codec frame rate differs from container frame rate:
180000.00 (180000/1) -> 25.00 (25/1)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'Good_Bye_Lenin.DVDRIP.HQ.deFR.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isomavc1
creation_time : 2012-04-07 09:59:01
encoder : HandBrake 0.9.6 2012022800
Duration: 01:52:41.32, start: 0.000000, bitrate: 1274 kb/s
...
Stream #0.0(und): Video: h264 (High), yuv420p, 704x384, 999 kb/s, 25
fps, 25 tbr, 90k tbn, 180k tbc
Metadata:
creation_time : 2012-04-07 09:59:01
Stream #0.1(fra): Audio: aac, 48000 Hz, stereo, s16, 131 kb/s
Metadata:
creation_time : 2012-04-07 09:59:01
Stream #0.2(deu): Audio: aac, 48000 Hz, stereo, s16, 131 kb/s
Metadata:
creation_time : 2012-04-07 09:59:01
Stream #0.3(fra): Subtitle: dvdsub, 4 kb/s
Metadata:
creation_time : 2012-04-07 09:59:01
Stream #0.4(und): Subtitle: text / 0x74786574
Metadata:
creation_time : 2012-04-07 09:59:01
File 'toto.mkv' already exists. Overwrite ? [y/N] y
Output #0, matroska, to 'toto.mkv':
Stream #0.0: Video: [0][0][0][0] / 0x0000, q=2-31, 64 kb/s, 90k tbn
Stream #0.1: Audio: [0][0][0][0] / 0x0000, 0 channels, 64 kb/s
Stream #0.2: Subtitle: [0][0][0][0] / 0x0000, 64 kb/s
Codec type mismatch for mapping #0.2 -> #0.2
=================================================================
It seems it expects a subtitle track for the #0.2 output stream. I
didn't see how to change that. I tried to use the "-newaudio" parameter
but without any success.
My problem is also that my version of ffmpeg seems a bit outdated
compared to the online doc.
Thanks for any help.
Oops, I got it...
I had to disable the subtitle track with -sn , else ffmpeg expects a
subtitle track for the #0.2 output stream, regardless what the -map says
I had also to put -newaudio at the end the command line (why ?). Hence
the right command is :
*****$ ffmpeg -i Good_Bye_Lenin.DVDRIP.HQ.deFR.mp4 -vcodec copy -acodec
> copy -sn -map 0.0 -map 0.1 -map 0.2 toto.mkv -newaudio
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