[MEncoder-users] resizing a SWF, vp6

[adam k]

i did specifivy the codec with -ovc lavc , which uses the libavcodec to 
determine the codec to be used.  and the video codec selected is ffvp6f 
according to the output.  perhaps it cannot write SWF ? only FLV ?

RC wrote:

>>but i get the error [NULL @ 0xbdd310]SWF only supports VP6, FLV1 and
>>MJPEG
>>    
>>
>what am i doing wrong?
>You haven't specified the codec to be used.
>  
>
> i'm trying to resize a SWF that's encoded in On2's vp6 format, with 
> the following line:
>
> /usr/local/bin/mencoder airplane1_cinh.swf -nosound  -ovc lavc -of 
> lavf -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames 
> -vf scale=100:75 -o airplaneResized4.swf
>
> but i get the error [NULL @ 0xbdd310]SWF only supports VP6, FLV1 and 
> MJPEG
>
> what am i doing wrong? i don't understand the error message, i've 
> searched it and haven't found any helpful info.   i've pasted the full 
> log below.
> thank you for your time.
>
> ----------------
>
> MEncoder 1.0rc1-4.1.1 (C) 2000-2006 MPlayer Team
> CPU: AMD Opteron(tm) Processor 254 (Family: 15, Model: 37, Stepping: 1)
> CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
> Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE SSE2
>
> success: format: 0  data: 0x0 - 0x172af2
> libavformat file format detected.
> Seek failed
> VIDEO:  [VP6F]  320x240  0bpp  30.000 fps    0.0 kbps ( 0.0 kbyte/s)
> [V] filefmt:35  fourcc:0x46365056  size:320x240  fps:30.00  ftime:=0.0333
> ** MUXER_LAVF 
> *****************************************************************
> You have certified that your video stream does not contain B frames.
> REMEMBER: MEncoder's libavformat muxing is presently broken and will 
> 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
> Opening video filter: [expand osd=1]
> Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
> Opening video filter: [scale w=100 h=75]
> ========================================================================== 
>
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Selected video codec: [ffvp6f] vfm: ffmpeg (FFmpeg VP6 Flash decoder)
> ========================================================================== 
>
> VDec: vo config request - 320 x 240 (preferred colorspace: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is undefined - no prescaling applied.
> SwScaler: reducing / aligning filtersize 14 -> 16
> SwScaler: reducing / aligning filtersize 14 -> 16
> SwScaler: reducing / aligning filtersize 14 -> 13
> SwScaler: reducing / aligning filtersize 14 -> 13
>
> SwScaler: BICUBIC scaler, from yuv420p to yuv420p using MMX2
> SwScaler: using n-tap MMX scaler for horizontal luminance scaling
> SwScaler: using n-tap MMX scaler for horizontal chrominance scaling
> SwScaler: using n-tap MMX scaler for vertical scaling (YV12 like)
> SwScaler: 320x240 -> 100x76
> videocodec: libavcodec (100x76 fourcc=34504d46 [FMP4])
> VIDEO CODEC ID: 13
> Writing header...
> [NULL @ 0xbdd310]SWF only supports VP6, FLV1 and MJPEG
> Floating point exception
>
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