[MEncoder-users] Help with mencoder

JD jd1008 at gmail.com
Sat Apr 27 07:27:15 CEST 2013


On 04/26/2013 11:09 PM, Gabri Shally wrote:
> On Apr 27, 2013 12:03 PM, "JD" <jd1008 at gmail.com> wrote:
>>
>> On 04/26/2013 10:25 PM, Gabri Shally wrote:
>>> On Apr 27, 2013 9:08 AM, "JD" <jd1008 at gmail.com> wrote:
>>>>
>>>> Tried this:
>>>>
>>>> mencoder Zachar*.flv -vf format=rgb32 scale=4:3 -ovc x264 -x264encopts
>>> vbitrate=8000 crf=18 format=dvd -oac mp3lame -lameopts preset=insane -o
>>> Zach_all.avi
>>>> MEncoder svn r34540 (Ubuntu), built with gcc-4.7 (C) 2000-2012 MPlayer
>>> Team
>>>> Option x264encopts: Unknown suboption vbitrate
>>> sorry, miss this. for x264, you use bitrate. and don't forget to add
> comma.
>>> by the way, you can't use bitrate and crf together, they should be used
>>> exclusively.
>>>
>>> so, either use
>>> -x264encopts crf=18,format=dvd
>>> or
>>> -x264encopts bitrate=8000,format=dvd
>> OK, I retried as you suggested:
>>
>> $ mencoder Zachar*.flv -vf format=rgb32,dsize=4/3,scale=-1:-2 -ovc x264
> -x264encopts bitrate=8000,format=dvd -oac mp3lame -lameopts preset=insane
> -o Zach_all.avi
>> MEncoder svn r34540 (Ubuntu), built with gcc-4.7 (C) 2000-2012 MPlayer
> Team
>> Option x264encopts: Bad argument bitrate=8000,format=dvd
>>
>> success: format: 0  data: 0x0 - 0xc396ae
>> libavformat version 53.32.100 (external)
>> Mismatching header version 53.19.0
>> libavformat file format detected.
>> [lavf] stream 0: video (h264), -vid 0
>> [lavf] stream 1: audio (aac), -aid 0
>> VIDEO:  [H264]  480x270  0bpp  29.970 fps  119.2 kbps (14.5 kbyte/s)
>> [V] filefmt:44  fourcc:0x34363248  size:480x270  fps:29.970 ftime:=0.0334
>> ==========================================================================
>> Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
>> libavcodec version 53.61.100 (external)
>> Mismatching header version 53.32.2
>> AUDIO: 22050 Hz, 2 ch, s16le, 49.5 kbit/7.01% (ratio: 6184->88200)
>> Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4
> Audio))
>> ==========================================================================
>> 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: [ffh264] vfm: ffmpeg (FFmpeg H.264)
>> ==========================================================================
>> MP3 audio selected.
>> Unsupported PixelFormat 61
>> Unsupported PixelFormat 53
>> Unsupported PixelFormat 81
>> Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
>> FATAL: Cannot initialize video driver.
>>
>> Exiting...
>>
>> Which video driver is it referring to???
>>
> what video driver mean is the x264 encoder. it cannot initialize because
> there is still problem with its arguments.
>
> once again, sorry... i forgot that encoder use double colon to separate
> arguments
>
> -x264encopts bitrate=8000:format=dvd
>
> if it still failed, try to remove format=dvd
> _______________________________________________
>
OK.
I had to remove :format=dvd
and now it is encoding.

But why does not work with format=dvd?
Is that not a bug?



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