[MPlayer-users] mencoder: Trying to convert real format to xvid

Mon Oct 31 00:30:24 CET 2005

On 2005/10/30, at 18:09, Scott Cegielski wrote:
>
> Guillaume POIRIER wrote:
>>
>> On 10/30/05, Scott Cegielski <scegielski at charter.net> wrote:
>>
>>> As per your advice, I am trying the cvs version of mplayer.  I ran  
>>> into
>>> some trouble though.
>>>
>>> First, I thought I could just copy the libavcodec and libavformat
>>> directories from the non-cvs version and then build the cvs version
>>> using those.  Hoever, the cvs version also apparently wants the
>>> libavutil directory since it gave me the message:
>>> vf_qp.c:49:33: ../libavutil/common.h: No such file or directory
>>>
>>> So, I used cvs to get the source files for ffmpeg and tried to build
>>> that first.  No luck there either.  It gets pretty far and then craps
>>> out with these messages:
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:40: undefined reference  
>>> to
>>> `_av_mallocz'
>>> null.o: In function `Process':
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:56: undefined reference  
>>> to
>>> `_avpicture_get_size'
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:57: undefined reference  
>>> to
>>> `_av_malloc'
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:59: undefined reference  
>>> to
>>> `_avpicture_fill'
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:60: undefined reference  
>>> to
>>> `_img_convert'
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:71: undefined reference  
>>> to
>>> `_img_convert'
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:76: undefined reference  
>>> to
>>> `_av_free'
>>> null.o: In function `Release':
>>> /home/scottc/mplayer_cvs/ffmpeg/vhook/null.c:33: undefined reference  
>>> to
>>> `_av_free'
>>>
>>> Im not sure if I need some other pre-requisite to get the ffmpeg  
>>> stuff
>>> to build correctly.
>>>
>>> Any ideas?
>>>
>>
>> You should really read the online docs!
>> http://www.mplayerhq.hu/homepage/design7/dload.html has everything you
>> need to do a proper compilation of MPlayer from CVS. You must not copy
>> ffmpeg in mplayer source tree. You just need to copy libav* to mplayer
>> source tree:
>>
>> CVS
>> Downloading MPlayer CVS
>>
>> You can also get MPlayer via anonymous CVS. Issue the following
>> commands to get the latest sources:
>>
>>  cvs -d:pserver:anonymous at mplayerhq.hu:/cvsroot/mplayer login
>>  cvs -z3 -d:pserver:anonymous at mplayerhq.hu:/cvsroot/mplayer co -P main
>>
>> When asked for a password, just hit enter. A directory named main will
>> be created. You can later update your sources by saying
>>
>>  cvs -z3 update -dPA
>>
>> from within that directory.
>> FFmpeg libavcodec/libavutil/libavformat
>>
>> CVS MPlayer is not fully functional without a copy of the libavcodec,
>> libavformat and libavutil libraries from FFmpeg. Get FFmpeg CVS via
>>
>>  cvs -d:pserver:anonymous at mplayerhq.hu:/cvsroot/ffmpeg login
>>  cvs -z3 -d:pserver:anonymous at mplayerhq.hu:/cvsroot/ffmpeg co -P  
>> ffmpeg
>>
>> When asked for a password, just hit enter. A directory named ffmpeg
>> will be created. Copy the libavcodec, libavformat and libavutil
>> subdirectories into the main directory just created from the MPlayer
>> checkout.
>>
>> In order to include libavcodec and libavutil in CVS updates, add the
>> following lines to main/CVS/Entries:
>>
>>  D/libavcodec////
>>  D/libavformat////
>>  D/libavutil////
>>
>> --
>> Reading doesn't hurt, really!
>> -- Dominik 'Rathann' Mierzejewski
>>
>> _______________________________________________
>> MPlayer-users mailing list
>> MPlayer-users at mplayerhq.hu
>> http://mplayerhq.hu/mailman/listinfo/mplayer-users
>>
>>
>
> Thanks for pointing that out.  I read the README files that come with  
> the cvs source, but they are not as clear as the website it about what  
> to do.  Anyway, I was able to build the cvs version successfully.   
> However, the conversions still fails.  Here is the output:
>
> % mencoder 101-CartmanGetsAnAnalProbe.rm -o test.avi -ovc xvid  
> -xvidencopts bitrate=100 -oac lavc
> MEncoder dev-CVS-051030-12:54-3.4.4 (C) 2000-2005 MPlayer Team
> CPU: Intel Pentium 4/Celeron 4 Northwood; Pentium 4 EE/Xeon  
> Prestonia,Gallatin (Family: 15, Stepping: 9)
> Detected cache-line size is 64 bytes
> CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
> Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
>
>
> success: format: 0  data: 0x0 - 0x22f70c7
> REAL file format detected.
> Stream description: Audio Stream
> Stream mimetype: audio/x-pn-realaudio
> Stream description: Video Stream
> Stream mimetype: video/x-pn-realvideo
> VIDEO:  [RV20]  320x240  24bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
> [V] filefmt:11  fourcc:0x30325652  size:320x240  fps:25.00   
> ftime:=0.0400
> ======================================================================= 
> ===
> Opening audio decoder: [realaud] RealAudio decoder
> opening shared obj '/usr/local/lib/codecs/cook.so'
> Error: Permission denied
> opening win32 dll 'cook.so'
> Error loading dll
> ERROR: Could not open required DirectShow codec cook.so.
> Read the RealAudio section of the DOCS!
> ADecoder preinit failed :(
> ADecoder init failed :(
> Opening audio decoder: [realaud] RealAudio decoder
> opening shared obj '/usr/local/lib/codecs/cook.so.6.0'
> Error: No such file or directory
> opening win32 dll 'cook.so.6.0'
> Error loading dll
> ERROR: Could not open required DirectShow codec cook.so.6.0.
> Read the RealAudio section of the DOCS!
> ADecoder preinit failed :(
> ADecoder init failed :(
> Opening audio decoder: [realaud] RealAudio decoder
> opening win32 dll 'cook3260.dll'
> Audio codec: [10] 32 kbps Stereo Music
> Audio bitrate: 32.386 kbit/s (4048 bps) AUDIO: 22050 Hz, 2 ch, s16le,  
> 32.4 kbit/4.59% (ratio: 4048->88200)
> Selected audio codec: [racookwin] afm: realaud (Win32 RealAudio COOK)
> ======================================================================= 
> ===
> xvid: using library version 1.0.3 (build xvid-1.0.3)
> Opening video filter: [expand osd=1]
> Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
> ======================================================================= 
> ===
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Selected video codec: [ffrv20] vfm: ffmpeg (FFmpeg RV20 decoder)
> ======================================================================= 
> ===
> Forcing output fourcc to 30355844 [DX50]
> Building audio filter chain for 22050Hz/2ch/s16le -> 0Hz/0ch/??...
> [mp2 @ 0x865f38]bitrate 224 is not allowed in mp2
> Couldn't open codec mp2, br=224
>
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> MPlayer-users mailing list
> MPlayer-users at mplayerhq.hu
> http://mplayerhq.hu/mailman/listinfo/mplayer-users

First of all, please don't top post. Mencoder appears to be failing on  
the choice of output codec. It is using by default mp2 at bitrate of  
224 which isn't allowed. I see in what you entered into mencoder  
doesn't specify an audio codec. I suggest specifying an output audio  
format and bitrate. Depending on what your use of the file is going to  
be mp3 at 32 kbit/s is a good suggestion as the audio is already 32.386  
kbit/s.
Someone correct me if I'm wrong on this as I don't really use mencoder.

Ergzay