[MPlayer-users] mplayer won't play what I mencoder ed

[John Brown]

On Sun, 4 Nov 2007 20:34:44 +0100, Krzysztof Duchnowski wrote:

> I've done one JPEG encodings to AVI and to MPEG and it played with
> mplayer just fine:
>
> #####################################################################
>
> mencoder mf://DSCN2023.JPG -mf type=jpeg:fps=5 -vf-add scale=640:480
> -nosound -ovc lavc -lavcopts
> vcodec=mpeg2video:cmp=2:mbd=2:trell:vqscale=31 -vf-add harddup -of mpeg
> -o test.mpg
>

>
> Video stream: 250.440 kbit/s (31305 B/s) size: 6261 bytes 0.200 secs
> 1 frames
>
> #####################################################################
>

That's interesting. I cannot reproduce your result. Why does your MEncoder
output mention:

> Option lavfopts: Unknown suboption
> i_certify_that_my_video_stream_does_not_use_b_frames
> Warning unknown option lavfopts at line 36
when you do not have lavfopts in the command line? Anyway...

When I try to play a file generated by your command (the only difference
being the filename) I get:

MPlayer dev-SVN-r24907-4.2.1-sjlj (C) 2000-2007 MPlayer Team
CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (Family: 15, Model: 3, Stepping: 3)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2

Playing test.mpg.
MPEG-PS file format detected.
MPEG: No audio stream found -> no sound.
VIDEO:  MPEG2  640x480  (aspect 1)  5.000 fps    0.0 kbps ( 0.0 kbyte/s)
==========================================================================
Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
VDec: vo config request - 640 x 480 (preferred colorspace: Mpeg PES)
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
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))
==========================================================================
Audio: no sound
Starting playback...
V:   0.0   0/  0 ??% ??% ??,?% 0 0

Exiting... (End of file)

while your output shows:
> V: 0.4 1/ 1 ??% ??% ??,?% 0 0
>
> Exiting... (End of file)

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