[FFmpeg-user] ffenc_bmp encode issue

Paul B Mahol onemda at gmail.com
Thu Jul 19 02:31:47 CEST 2012


On 7/18/12, Carlos Aguero <carlos.aguero at ridgerun.com> wrote:
> Hi all,
>
> I am trying to grab a frame and encode it as a bmp file, grayscale,
> 8bits, if I use the ffenc_pgm I get a grayscale png file as expected,
> but when I use the ffenc_bmp encoder the result is a dark bmp file, any
> suggestions? or is there a problem with the bmp encoder?
>
> *I am using this pipeline for png encode (working fine)*
> gst-launch v4l2src always-copy=false chain-ipipe=true num-buffers=1 !
> 'video/x-raw-yuv, width=(int)640, height=(int)480,
> framerate=(fraction)30/1' ! ffmpegcolorspace ! 'video/x-raw-gray,
> width=(int)640, height=(int)480, framerate=(fraction)30/1, bpp=(int)8,
> depth=(int)8' ! ffenc_pgm ! filesink location=test.png
>
> *and this one for bmp encoding (not working)*
> gst-launch v4l2src always-copy=false chain-ipipe=true num-buffers=1 !
> 'video/x-raw-yuv, width=(int)640, height=(int)480,
> framerate=(fraction)30/1' ! ffmpegcolorspace ! 'video/x-raw-gray,
> width=(int)640, height=(int)480, framerate=(fraction)30/1, bpp=(int)8,
> depth=(int)8' ! ffenc_bmp ! filesink location=test.bmp

What FFmpeg version?


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