I've based on FFmpeg -- if you execute wrong pixel format for y4m, for example: ffmpeg -i 720p50_parkrun_ter.y4m -pix_fmt monow -f yuv4mpegpipe w.y4m
you can see error message: ERROR: yuv4mpeg can only handle yuv444p, yuv422p, yuv420p, yuv411p and gray8 pixel formats. And using 'strict -1' also yuv444p9, yuv422p9, yuv420p9, yuv444p10, yuv422p10, yuv420p10, yuv444p12, yuv422p12, yuv420p12, yuv444p14, yuv422p14, yuv420p14, yuv444p16, yuv422p16, yuv420p16 and gray16 pixel formats. Use -pix_fmt to select one. For gray8 and gray16 the y4m header has mono and mono16 strings. I found also mjpeg (yuv4mpeg creator?): http://mjpeg.cvs.sourceforge.net/viewvc/mjpeg/mjpeg_play/utils/yuv4mpeg.h?revision=1.28&view=markup -- see line 641. Mateusz W dniu 2016-10-25 o 06:18, Pradeep Ramachandran pisze: > > On Sun, Oct 16, 2016 at 11:17 PM, Mateusz <[email protected] > <mailto:[email protected]>> wrote: > > This patch fixes issue #282. > > # HG changeset patch > # User Ma0 <[email protected] <mailto:[email protected]>> > # Date 1476639059 -7200 > # Sun Oct 16 19:30:59 2016 +0200 > # Node ID f49487ee92a296a36938dfb92b7b51c9fb7f2ff9 > # Parent c97805dad9148ad3cddba10a67ed5596508e8f86 > CLI: allow 'mono' & 'mono16' color space for y4m input > > diff -r c97805dad914 -r f49487ee92a2 source/input/y4m.cpp > --- a/source/input/y4m.cpp Thu Oct 13 17:53:48 2016 +0800 > +++ b/source/input/y4m.cpp Sun Oct 16 19:30:59 2016 +0200 > @@ -280,7 +280,7 @@ > { > c = ifs->get(); > > - if (c <= '9' && c >= '0') > + if (c <= 'o' && c >= '0') > csp = csp * 10 + (c - '0'); > else if (c == 'p') > { > @@ -300,9 +300,23 @@ > break; > } > > - if (d >= 8 && d <= 16) > - depth = d; > - colorSpace = (csp == 444) ? X265_CSP_I444 : (csp == 422) > ? X265_CSP_I422 : X265_CSP_I420; > + switch (csp) > + { > + case ('m'-'0')*100000 + ('o'-'0')*10000 + ('n'-'0')*1000 > + ('o'-'0')*100 + 16: > + colorSpace = X265_CSP_I400; > + depth = 16; > + break; > + > + case ('m'-'0')*1000 + ('o'-'0')*100 + ('n'-'0')*10 + > ('o'-'0'): > + colorSpace = X265_CSP_I400; > + depth = 8; > + break; > + > + default: > + if (d >= 8 && d <= 16) > + depth = d; > + colorSpace = (csp == 444) ? X265_CSP_I444 : (csp == > 422) ? X265_CSP_I422 : X265_CSP_I420; > + } > > > Do you have a pointer to the definition of the Y4M headers? From the > description on wikipedia > (https://wiki.multimedia.cx/index.php?title=YUV4MPEG2), I don't see the mono > or mono16 string additions for the csp. > > > break; > > default: > @@ -324,7 +338,7 @@ > if (width < MIN_FRAME_WIDTH || width > MAX_FRAME_WIDTH || > height < MIN_FRAME_HEIGHT || height > MAX_FRAME_HEIGHT || > (rateNum / rateDenom) < 1 || (rateNum / rateDenom) > > MAX_FRAME_RATE || > - colorSpace <= X265_CSP_I400 || colorSpace >= X265_CSP_COUNT) > + colorSpace < X265_CSP_I400 || colorSpace >= X265_CSP_COUNT) > return false; > > return true; > > _______________________________________________ > x265-devel mailing list > [email protected] <mailto:[email protected]> > https://mailman.videolan.org/listinfo/x265-devel > <https://mailman.videolan.org/listinfo/x265-devel> > > > > > _______________________________________________ > x265-devel mailing list > [email protected] > https://mailman.videolan.org/listinfo/x265-devel
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