[FFmpeg-user] Need some help for saving bmp

[铁 慕容]

Not exactly the same. 

I used 
          ./ffmpeg -i Inside10.dv  -idct simple -r 1 -t 00:00:01  -f image2 image%01d.bmp 
 
for DV. 
 
and also tried: 
          ./ffmpeg -i Frame1.VC3  -vcodec dnxhd -f image2 image%01d.bmp
even
          ./ffmpeg -i Frame1.VC3  -vcodec dnxhd -an output.mov
 
for VC3
 
The first one works fine, but the second and third give the same error message as metioned before. Could you recommend me a usable command to try?

Kind Wishes
 
Yours
Chao.Guo



 
> Date: Thu, 26 May 2011 12:15:12 +0200
> From: etienne.buira.lists at free.fr
> To: ffmpeg-user at ffmpeg.org
> Subject: Re: [FFmpeg-user] Need some help for saving bmp
> 
> On Thu, May 26, 2011 at 04:43:34PM +0800, 铁 慕容 wrote:
> > 
> > Hi Guys
> > 
> > DO you know how to save a decoded file to bmp format? I used the following command to decode a VC3 file and save the result, but failed. The interesting thing is when I decode a dv file, it works.
> 
> With the exact same ordering?
> 
> > ./ffmpeg -i Frame1.VC3 -vcodec dnxhd -r 25 -b 200k -sameq -y -f image2 output%03.bmp
> 
> Here, -vcodec applies to output. Also, I doubt -b 200k -sameq (which
> contradict themselves) is of any use for bmp output.
> 
> > The error message was given: 
> > 
> > [dnxhd @ 0x1447f20]video parameters incompatible with DNxHD
> > Output #0, image2, to 'output%03.bmp':
> > Stream #0.0: Video: dnxhd, yuv422p, 1920x1080, q=2-31, 200 kb/s, 90k tbn, 25 tbc
> > Stream mapping:
> > Stream #0.0 -> #0.0
> > Error while opening encoder for output stream #0.0 - maybe incorrect parameters such as bit_rate, rate, width or height
> ^^^^^^
> > av_transcode() OUT
> > 
> > What's the problem? Thanks a lot.
> > 
> > 
> > Kind Wishes
> > 
> > Yours
> > Chao.Guo
> > 
> > 
> > 
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