Silvain Beriault wrote: > Please dont top-post. Please trim sigs when replying.
> One thing I have always struggled with is how to set the JPEG quality > factor (1..100) with libavcodec? Please dont hijack threads: this is actually unrelated to the original topic, which was about *DE*coding. Please repost as a new thread. > > There is no such field in the giant AVCodecContext structure. Is it > qmin/qmax? what is the relation between qmin/qmax and JPEG quality factor? > > Thanks, > Silvain > > Keean Schupke wrote: >> Hi, >> >> Thanks, I eventually found a usable example, then I found the codec >> does not support all the JPEG types I need, so I am using libjpeg to >> decode the jpegs into an RGB buffer, then swscale to convert to >> YUV420P, for the next bit. >> >> Cheers, >> Keean. >> >> 2008/6/30 Michel Bardiaux <[EMAIL PROTECTED]>: >> >>> Keean Schupke wrote: >>> >>>> Hi, >>>> >>>> Can anyone show me an example of how to use libavcodec to decode a >>>> JPEG image from a memory buffer? >>>> >>>> >>> Simply call avcodec_decode_video, using an AVCodecContext for the MJPEG >>> codec. >>> >>> Greetings, >>> -- >>> Michel Bardiaux >>> http://www.mediaxim.com/ [unnecessary sigs trimmed] -- Michel Bardiaux http://www.mediaxim.com/ _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
