On Thu, Mar 11, 2010 at 5:37 AM, Toby <streu...@googlemail.com> wrote: > Hi, > > during the course of debugging frei0r plugins I've tried to utilize melt as > a testbed for filtering > single / multiple frames. As a baseline I need to establish a "neutral" > processing queue for melt, where > I can insert a the filter afterwards. But I'm running into trouble. Here's > what I did so far to pass-throu a single frame of size 640x480: > > melt testframe.png length=1 -consumer avformat:testframe_out.png > progressive=1 real_time=0 width=640 height=480 vcodec=png
try melt -profile square_ntsc testframe.png length=1 -consumer avformat:testframe_out.png vcodec=png real_time=0 You should not need width, height, and progressive with the right profile. > First of all, is there an easier way to dump raw frame/image data (png or > any other lossless coding format) ? no > The big problem is the content of the testframe_out.png. It's looks pretty > blurred and must have been processed in some way - It might have gone through colorspace conversions. I have to do a little more analysis. Is testframe.png 640x480? > either compression or scaling artifacts. I'd guess it's a problem of the > producer. But I didn't manage to specifying profile > > properties like height or width for it. What do I need to do to get a > neutral processing queue ? I mean, pixels or the ouput frame > > are identical to the input one. No scaling, lossy compression, etc. ... > > Toby > > ------------------------------------------------------------------------------ > Download Intel® Parallel Studio Eval > Try the new software tools for yourself. Speed compiling, find bugs > proactively, and fine-tune applications for parallel performance. > See why Intel Parallel Studio got high marks during beta. > http://p.sf.net/sfu/intel-sw-dev > _______________________________________________ > Mlt-devel mailing list > Mlt-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mlt-devel > > -- +-DRD-+ ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Mlt-devel mailing list Mlt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mlt-devel
