[FFmpeg-user] Need some help for saving bmp
etienne.buira.lists at free.fr
Thu May 26 12:15:12 CEST 2011
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
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