Why can't I convert FLV to MP4 format using FFmpeg when MP3 works?

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Posted by hugemeow on Super User See other posts from Super User or by hugemeow
Published on 2012-10-14T14:27:05Z Indexed on 2012/10/14 15:41 UTC
Read the original article Hit count: 666

Filed under:
|
|
|
|

In fact I have succeeded to convert FLV to MP3:

D:\tmp\ffmpeg-20121005-git-d9dfe9a-win64-static\ffmpeg-20121005-git-d9dfe9a-win
4-static\bin>ffmpeg.exe -i a.flv -acodec mp3 a.mp3
ffmpeg version N-45080-gd9dfe9a Copyright (c) 2000-2012 the FFmpeg developers
  built on Oct  5 2012 16:49:01 with gcc 4.7.1 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-run
ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass
-enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
ibfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopen
peg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libthe
ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-l
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --en
ble-zlib
  libavutil      51. 73.102 / 51. 73.102
  libavcodec     54. 63.100 / 54. 63.100
  libavformat    54. 29.105 / 54. 29.105
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 19.102 /  3. 19.102
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
Input #0, flv, from 'a.flv':
  Metadata:
    metadatacreator : iku
    hasKeyframes    : true
    hasVideo        : true
    hasAudio        : true
    hasMetadata     : true
    canSeekToEnd    : false
    datasize        : 16906383
    videosize       : 14558526
    audiosize       : 2270465
    lasttimestamp   : 530
    lastkeyframetimestamp: 529
    lastkeyframelocation: 16893721
  Duration: 00:08:49.73, start: 0.000000, bitrate: 255 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p, 448x336 [SAR 1:1 DAR 4:3], 218 kb
s, 15 tbr, 1k tbn, 30 tbc
    Stream #0:1: Audio: aac, 44100 Hz, stereo, s16, 32 kb/s
File 'a.mp3' already exists. Overwrite ? [y/N] y
Output #0, mp3, to 'a.mp3':
  Metadata:
    metadatacreator : iku
    hasKeyframes    : true
    hasVideo        : true
    hasAudio        : true
    hasMetadata     : true
    canSeekToEnd    : false
    datasize        : 16906383
    videosize       : 14558526
    audiosize       : 2270465
    lasttimestamp   : 530
    lastkeyframetimestamp: 529
    lastkeyframelocation: 16893721
    TSSE            : Lavf54.29.105
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16
Stream mapping:
  Stream #0:1 -> #0:0 (aac -> libmp3lame)
Press [q] to stop, [?] for help
size=    8279kB time=00:08:49.78 bitrate= 128.0kbits/s
video:0kB audio:8278kB subtitle:0 global headers:0kB muxing overhead 0.006842%

But I failed to convert FLV to MP4. Why is the encoder 'mp4' unknown? What's more, how can I find the codecs which are already supported by my FFmpeg?

D:\tmp\ffmpeg-20121005-git-d9dfe9a-win64-static\ffmpeg-20121005-git-d9dfe9a-win6
4-static\bin>ffmpeg.exe -i a.flv -acodec mp4 aa.mp4
ffmpeg version N-45080-gd9dfe9a Copyright (c) 2000-2012 the FFmpeg developers
  built on Oct  5 2012 16:49:01 with gcc 4.7.1 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-pthreads --enable-runt
ime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libass -
-enable-libcelt --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-l
ibfreetype --enable-libgsm --enable-libmp3lame --enable-libnut --enable-libopenj
peg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheo
ra --enable-libutvideo --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-li
bvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --ena
ble-zlib
  libavutil      51. 73.102 / 51. 73.102
  libavcodec     54. 63.100 / 54. 63.100
  libavformat    54. 29.105 / 54. 29.105
  libavdevice    54.  3.100 / 54.  3.100
  libavfilter     3. 19.102 /  3. 19.102
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 16.100 /  0. 16.100
  libpostproc    52.  1.100 / 52.  1.100
Input #0, flv, from 'a.flv':
  Metadata:
    metadatacreator : iku
    hasKeyframes    : true
    hasVideo        : true
    hasAudio        : true
    hasMetadata     : true
    canSeekToEnd    : false
    datasize        : 16906383
    videosize       : 14558526
    audiosize       : 2270465
    lasttimestamp   : 530
    lastkeyframetimestamp: 529
    lastkeyframelocation: 16893721
  Duration: 00:08:49.73, start: 0.000000, bitrate: 255 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p, 448x336 [SAR 1:1 DAR 4:3], 218 kb/
s, 15 tbr, 1k tbn, 30 tbc
    Stream #0:1: Audio: aac, 44100 Hz, stereo, s16, 32 kb/s
Unknown encoder 'mp4'

© Super User or respective owner

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Related posts about conversion

Related posts about ffmpeg

  • how to install ffmpeg in cpanel

    as seen on Super User - Search for 'Super User'
    i'm using dedicated server(linux) so i need to install ffmpeg in cpanel so here ffmpeg i found in Main Software Install a Perl Module but i writing script in php so how can i install ffmpeg phpperl when i'am trying to install ffmpeg in perl module i get this response Checking C compiler… >>> More

  • FFMpeg-PHP Installation Error

    as seen on Server Fault - Search for 'Server Fault'
    While installing FFmpeg-PHP, I got this interesting error: /usr/downloads/ffmpeg-php-0.6.0/ffmpeg_movie.c: In function 'zim_ffmpeg_movie_getAudioStreamId': /usr/downloads/ffmpeg-php-0.6.0/ffmpeg_movie.c:1051: error: 'CODEC_TYPE_AUDIO' undeclared (first use in this function) /usr/downloads/ffmpeg-php-0… >>> More

  • git problems installing stuff [closed]

    as seen on Super User - Search for 'Super User'
    root@Frenzen:~# cd root@Frenzen:~# git clone --depth 1 git://source.ffmpeg.org/ffmpeg Initialized empty Git repository in /root/ffmpeg/.git/ root@Frenzen:~# cd root@Frenzen:~# git clone --depth 1 git://source.ffmpeg.org/ffmpeg Initialized empty Git repository in /root/ffmpeg/.git/ root@Frenzen:~#… >>> More

  • Unable to install ffmpeg-php

    as seen on Server Fault - Search for 'Server Fault'
    I followed the instructions on http://www.mysql-apache-php.com/ffmpeg-install.htm but ffmpeg-php does not show up in my phpinfo() The commands I ran (in order) #yum install ffmpeg ffmpeg-devel ... Public key for faac-1.26-1.el5.rf.x86_64.rpm is not installed #rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0… >>> More

  • Unable to install ffmpeg-php

    as seen on Server Fault - Search for 'Server Fault'
    Hi, I followed the instructions on http://www.mysql-apache-php.com/ffmpeg-install.htm but ffmpeg-php does not show up in my phpinfo() The commands I ran (in order) #yum install ffmpeg ffmpeg-devel ... Public key for faac-1.26-1.el5.rf.x86_64.rpm is not installed #rpm -Uhv http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0… >>> More

Categories cloud

.NET ASP.NET iphone linux python Windows mysql android sql windows-7 html c ruby-on-rails css objective-c ubuntu networking sql-server wpf asp.net-mvc ruby database Xml apache AJAX osx security regex django Performance 12.04 windows-xp mac web-development iphone-sdk vb.net Silverlight apache2 flash server perl best-practices email installation eclipse visual-studio algorithm windows-server-2008 winforms wcf firefox bash dns /Oracle