[MEncoder-users] Video for YouTube, getting extremely low quality movies

[tripp]

Apple7777 <applepro7777 at gmail.com> wrote:  eliared at yahoo.com> writes:

>> provide the source to the problem clip if you want someone to attempt a better 
>>conversion or confirm these problems you've found


> RC the very source of that clip is HDV. I've edited it and encoded 
>by iMovie, which made deinterlace I guess. The created .m4v movie
>looks perfectly:

>http://www.roamearth.com/video/2/27temp

_______________________________________________

The source is already plenty jerky.

also mplayer doesn't like it much,
decoding produces grey frames for the first seconds.

mplayer 27temp.m4v
MPlayer Sherpya-SVN-r25803-4.2.2 (C) 2000-2008 MPlayer Team
CPU: Intel(R) Core(TM)2 CPU          6300  @ 1.86GHz (Family: 6, Model: 15, Step
ping: 6)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
MPLAYER:
Playing 27temp.m4v.
  DEMUX: ISO: Unknown File Type Major Brand: M4VH
DEMUXER: Quicktime/MOV file format detected.
  DEMUX: [mov] Video stream found, -vid 0
  DEMUX: [mov] Audio stream found, -aid 1
  DEMUX: VIDEO:  [avc1]  960x540  24bpp  29.970 fps    0.0 kbps ( 0.0 kbyte/s)
==========================================================================
  VIDEO: Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
  VIDEO: Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
  AUDIO: Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
  AUDIO: AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
  AUDIO: Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio)
decoder)
==========================================================================
MPLAYER: AO: [dsound] 44100Hz 2ch s16le (2 bytes per sample)
MPLAYER: Starting playback...
  VIDEO: [h264 @ 00D69F30]warning: first frame is no keyframe
  VIDEO: VDec: vo config request - 960 x 540 (preferred colorspace: Planar YV12)

MPLAYER: VDec: using Planar YV12 as output csp (no 0)
MPLAYER: Movie-Aspect is undefined - no prescaling applied.
MPLAYER: VO: [directx] 960x540 => 960x540 Planar YV12
MPLAYER:

also got:
[h264 @ 00D3CBA0]concealing 1785 DC, 1785 AC, 1785 MV errors
with some mencoder commands

i hate quicktime formats...

anyway,
ignoring grey frames,
this works just fine:

mencoder -af resample=22050:0:0 -vf
framestep=2,scale=320:-3,expand=320:240 -sws 9 -of lavf -ovc lavc 
-lavcopts vcodec=flv:vbitrate=298:trell:v4mv:mv0:mbd=2:cbp:aic:cmp=3:subcmp=3:vpass=1:vratetol=800 -ofps 15 -oac mp3lame -lameopts abr:br=48:mode=0 -of lavf -lavfopts
format=flv 27temp.m4v -o 2oo.flv
mencoder -af resample=22050:0:0 -vf
 framestep=2,scale=320:-3,expand=320:240 -sws 9 -of lavf -ovc lavc 
 -lavcopts vcodec=flv:vbitrate=298:trell:v4mv:mv0:mbd=2:cbp:aic:cmp=3:subcmp=3:vpass=2:vratetol=800 -ofps 15 -oac mp3lame -lameopts abr:br=48:mode=0 -of lavf -lavfopts
 format=flv 27temp.m4v -o 2oo.flv

http://www.mediafire.com/?6xtej0zkxnx


tripp

       
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