[MEncoder-users] Problem converting a mpeg-ps file to avi

[Giacomo Comes]

On Thu, Jul 14, 2005 at 03:02:14PM +0200, Tobias Schmetzer wrote:
> Hey guys, 
> 
> I want to reencode a mpeg-ps file to a mpeg4 avi file.
> Unfortunately mplayer say "The selected video_out device is incompatible
> with this codec. VDecoder init failed :("

The encoding process looks ok, although you should use more lavcopts.
(setting the video bit rate, adding autoaspect, adding mbd=2 etc.)
About the failure of MPlayer, you should send his output with the
option -v

> 
> I startet it with:
> mencoder Refugio.en.el.paraíso.avi -oac copy -ovc lavc -
> lavcopts vcodec=mpeg4 -vf scale=352:576  -o output.avi

You do not need to scale because the original stream has already that
resolution.

Giacomo

> 
> What I get (after 15mb) as a result is a avi file without video
> information.
> 
> I looked up the man page, the mailinglist, the html-documenation but I
> couldn't find any hint what I'm doing wrong.
> 
> Another question: How can I pipe the video stream to stout?
> 
> Could anybody help me, please?
> 
> I am using Mencoder 1.0pre7 on a Athlon 700Mhz, debian sarge(3.1).
> 
> Thank you!
> 
> ------------------and here is what mplayer says----------------
> 
> >mencoder Refugio.en.el.paraíso.avi -oac copy -ovc lavc -
> lavcopts vcodec=mpeg4 -vf scale=352:576  -o output.avi
> 
> MEncoder 1.0pre7-3.3.5 (C) 2000-2005 MPlayer Team
> CPU: Advanced Micro Devices Athlon K75 Pluto,Orion (Family: 6, Stepping:
> 2)
> Detected cache-line size is 64 bytes
> MMX2 supported but disabled
> 3DNow supported but disabled
> 3DNowExt supported but disabled
> CPUflags: Type: 6 MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
> Compiled for x86 CPU with extensions: MMX
> 
> 61 audio & 169 video codecs
> File not found: 'frameno.avi'
> Failed to open frameno.avi
> success: format: 0  data: 0x0 - 0x31a09674
> Seek failed
> AVI: Missing video stream!? Contact the author, it may be a bug :(
> MPEG-PS file format detected.
> VIDEO:  MPEG2  352x576  (aspect 2)  25.000 fps  2000.0 kbps (250.0
> kbyte/s)
> [V] filefmt:2  fourcc:0x10000002  size:352x576  fps:25.00  ftime:=0.0400
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000)
> Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> Opening video filter: [expand osd=1]
> Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
> Opening video filter: [scale w=352 h=576]
> ==========================================================================
> Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
> VDec: vo config request - 352 x 576 (preferred csp: Mpeg PES)
> The selected video_out device is incompatible with this codec.
> VDecoder init failed :(
> Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder
> libmpeg2-v0.4.0b
> Selected video codec: [mpeg12] vfm:libmpeg2 (MPEG 1 or 2 (libmpeg2))
> ==========================================================================
> audiocodec: framecopy (format=50 chans=2 rate=48000 bits=16 bps=24000
> sample-1)
> Writing AVI header...
> ODML: Aspect information not (yet?) available or unspecified, not
> writing vprp h
> eader.
> VDec: vo config request - 352 x 576 (preferred csp: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
> SwScaler: using unscaled Planar YV12 -> Planar YV12 special converter
> videocodec: libavcodec (352x576 fourcc=34504d46 [FMP4])
> ODML: Aspect information not (yet?) available or unspecified, not
> writing vprp h
> eader.
> 
> 1 duplicate frame(s)!
> Pos:   0.8s     22f ( 0%)   0fps Trem:   0min   0mb  A-V:0.083 [0:192]
> Skipping frame!
> Pos:   3.1s     80f ( 0%)  67fps Trem:   0min   0mb  A-V:0.080 [109:192]
> Skipping frame!
> Pos:   5.7s    146f ( 0%)  67fps Trem:   0min   0mb  A-V:-0.010
> [135:192]