[MEncoder-users] Mencoder snv r24739-4.1.2 - VP6 FLV Two Pass Video Encoding

[Tom Shaw]

On Wed, 10 Oct 2007 21:57:39 +0200, you wrote:

>Tom Shaw schrieb:
>> Ive got it done!!!
>> ...
>> Then create your compdata files.
>>   
>
>It works very well, as long as mencoder is called as "root". If I call from
>user "nobody", mencoder causes a segmentation fault (exit code 139).
>The parameter "-passlogfile" seams to be ignored.
>Thank you very much
>Markus
>
>* Error message:
>    MSGBOX 'First pass file can't be written.' 'Warning' (48)



You need to make sure the firstpass log file name set in the dialogue
is set with a single word, no periods, slashes or anything else.

The firspass log file is written to /tmp and seems to convert these
characters.

I would probably run this process as its own user (create a new user
to do the job) as you will probably want to do some moving round of
files oncethe encoding process is finished.

Personally Ive had no problems running it as a normal user.  Your
milage may vary.



>
>* Command line:
>    mencoder source.asf -of lavf -ofps 25 -vf yadif,scale=360:288,flip
>        -ovc vfw -xvfwopts codec=vp6vfw.dll:compdata=vfw_b200p1.mcf
>        -oac mp3lame -lameopts cbr:br=64 -channels 2 -srate 44100 -o 
>output.flv
>
>* Full output:
>
>MEncoder dev-SVN-r24760-4.1.2 (C) 2000-2007 MPlayer Team
>CPU: AMD Turion(tm) 64 Mobile Technology ML-34 (Family: 15, Model: 36, 
>Stepping: 2)
>CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
>Compiled with runtime CPU detection.
>success: format: 0  data: 0x0 - 0x7c611b
>ASF file format detected.
>[asfheader] Audio stream found, -aid 1
>[asfheader] Video stream found, -vid 2
>VIDEO:  [WMV3]  360x288  24bpp  1000.000 fps  133.2 kbps (16.3 kbyte/s)
>[V] filefmt:6  fourcc:0x33564D57  size:360x288  fps:1000.00  ftime:=0.0010
>==========================================================================
>Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
>AUDIO: 44100 Hz, 2 ch, s16le, 80.0 kbit/5.67% (ratio: 10003->176400)
>Selected audio codec: [ffwmav2] afm: ffmpeg (DivX audio v2 (FFmpeg))
>==========================================================================
>** MUXER_LAVF 
>*****************************************************************
>REMEMBER: MEncoder's libavformat muxing is presently broken and can generate
>INCORRECT files in the presence of B frames. Moreover, due to bugs MPlayer
>will play these INCORRECT files as if nothing were wrong!
>*******************************************************************************
>OK, exit
>Loading codec DLL: 'vp6vfw.dll'
>Creating new registry
>Failed to open registry file '/nonexistent/.mplayer/registry' for writing.
>Loaded DLL driver vp6vfw.dll at 10000000
>HIC: 90a9338
>568 - 568 - 568
>Compressor type: 63646976
>Compressor subtype: 32365056
>Compressor flags: 40, version 65536, ICM version: 260
>Flags:
>Compressor data 2160 bytes
>ICSetState ret: 2056
>ICCompressGetFormatSize ret: 40
>Opening video filter: [expand osd=1]
>Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
>Opening video filter: [flip]
>Opening video filter: [scale w=360 h=288]
>Opening video filter: [yadif]
>==========================================================================
>Opening video decoder: [dmo] DMO video codecs
>DMO dll supports VO Optimizations 0 1
>DMO dll might use previous sample when requested
>Failed to open registry file '/nonexistent/.mplayer/registry' for writing.
>Failed to open registry file '/nonexistent/.mplayer/registry' for writing.
>Failed to open registry file '/nonexistent/.mplayer/registry' for writing.
>GetOutput r=0x0   size:311040  align:1
>StreamCount r=0x0  1  1
>Decoder supports the following formats: YV12 YUY2 UYVY YVYU RGB8 RGB555 
>RGB565 RGB24 RGB32
>Decoder is capable of YUV output (flags 0x1b)
>VDec: vo config request - 360 x 288 (preferred colorspace: Packed YUY2)
>VDec: using Planar YV12 as output csp (no 0)
>Opening video filter: [flip]
>Movie-Aspect is undefined - no prescaling applied.
>[swscaler @ 0x8bfa090]SwScaler: using unscaled yuv420p -> bgr24 special 
>converter
>Opening video filter: [expand]
>Expand: -1 x -1, -1 ; -1, osd: 0, aspect: 0.000000, round: 1
>Starting compression:
> Input format:
>  biSize 40
>  biWidth 360
>  biHeight 288
>  biPlanes 1
>  biBitCount 24
>  biCompression 0x0 ('')
>  biSizeImage 311040
> Output format:
>  biSize 40
>  biWidth 360
>  biHeight 288
>  biPlanes 1
>  biBitCount 24
>  biCompression 0x32365056 ('VP62')
>  biSizeImage 211456
>ICCompressBegin failed: Error -7
>MSGBOX 'First pass file can't be written.
>' 'Warning' (48)
> Output format after query/begin:
>  biSize 40
>  biWidth 360
>  biHeight 288
>  biPlanes 1
>  biBitCount 24
>  biCompression 0x32365056 ('VP62')
>  biSizeImage 211456
>Selected video codec: [wmv9dmo] vfm: dmo (Windows Media Video 9 DMO)
>==========================================================================
>MP3 audio selected.
>Pos:   0.0s      1f ( 0%)  0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
>New_Face failed. Maybe the font path is wrong.
>Please supply the text font file (~/.mplayer/subfont.ttf).
>subtitle font: load_sub_face failed.
>
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