On Mon, Sep 16, 2013 at 8:22 PM, Ned Haskin <feanor2...@covad.net> wrote:
> On Mon, 2013-09-16 at 17:52 +0300, Einar Rünkaru wrote: > > Hi > > > > > > On Sun, Sep 15, 2013 at 7:00 PM, Ned Haskin <feanor2...@covad.net> > > wrote: > > Hi, > > I noticed that when I render through the pipe, the stream is > > always yuv420p. > > > > Input #0, yuv4mpegpipe, from 'pipe:': > > Duration: N/A, bitrate: N/A > > Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, > > 1280x720, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 29.97 tbn, > > 29.97 tbc > > > > Now I figured I was probably doing something wrong & double > > checked everything. > > Input file dnxhd 720p yuv422p cinelerra color model yuv 8bit. > > Reading the manual I saw that rgb-float is > > close to lossless and will work with yuv & is faster in many > > plugins. so I tried again in rgb-float. > > Same yuv420p stream. So I tried rendering to one of the > > formats that works natively mpeg4. The output > > file came out as yuv422p. This is with rgb-float as > > cinelerra's color model. Same dnxhd yuv422p input > > file. > > > > I tried this with both versions of cinelerra I have installed > > CV, HV-4.4 > > Is this broken? I looked through the yuvstream patch for 4.4 & > > it looks to me like it's setup to make sure > > the color model isn't changed. There are comments in it about > > no lossy format conversions. With the if > > statements checking & maintaining color model. > > > > Anyone have a clue on this? > > > > > > How can a thing called 'yuvstream' contain rgb? > > > > > > Einar > > I don't know, but it's in the Cinelerra-CV manual. The conversion is > lossless?? > Conversion yuv <-> rgb is not loseless. YUVstream supports only yuv420p (at least Cinelerra supports only yuv420p for yuvstream). Einar
_______________________________________________ Cinelerra mailing list Cinelerra@skolelinux.no https://lists.skolelinux.org/listinfo/cinelerra
