Mysoogal
2009-Aug-11 22:18 UTC
[theora] blocky issue here with libtheora 1.1 20090806 (Thusnelda)
this sample is very blocky, the older version seems to do much better and less blocky video. i'm not sure if my 1.9ghz 1 gb ram is the problem here or the encoder has hicups on this new libtheora 1.1 20090806 (Thusnelda). please advice how to fix this or should i use the older version. this encode was 2 pass with horrible output. http://www.megaupload.com/?d=NDGY0EAL General ID : 28168 (0x6E08) Complete name : C:\Documents and Settings\Mysoogal\Desktop\bT\shutterisland-tlr1_h480p.ogv Format : OGG File size : 20.0 MiB Duration : 2mn 30s Overall bit rate : 1 116 Kbps Writing application : ffmpeg2theora-0.24+svn SOURCE_OSHASH : 7c507450b2ea196d SOURCE_OSHASH : 7c507450b2ea196d Video ID : 32697 (0x7FB9) Format : Theora Duration : 2mn 30s Bit rate : 983 Kbps Nominal bit rate : 990 Kbps Width : 848 pixels Height : 352 pixels Display aspect ratio : 2.409 Frame rate : 23.976 fps Bits/(Pixel*Frame) : 0.137 Writing library : Xiph.Org libtheora 1.1 20090806 (Thusnelda) Audio ID : 21534 (0x541E) Format : Vorbis Format settings, Floor : 1 Duration : 2mn 30s Bit rate mode : Constant Bit rate : 80.0 Kbps Channel(s) : 2 channels Sampling rate : 48.0 KHz Stream size : 1.43 MiB (7%) Writing library : libVorbis 20090709 (UTC 2009-07-09)
xiphmont at xiph.org
2009-Aug-11 22:28 UTC
[theora] blocky issue here with libtheora 1.1 20090806 (Thusnelda)
Hello, The rate control is in fact slamming back and forth between the rails on this clip. There have been multiple bugfixes in the days since your build, including a number of 32 bit fixes. Is it possible to get the original uncompressed clip? With the .ogv file all we can say is 'yup, looks broken' we can't actually do any testing. Monty
Jason Self
2009-Aug-11 22:30 UTC
[theora] blocky issue here with libtheora 1.1 20090806 (Thusnelda)
On Tue, Aug 11, 2009 at 3:18 PM, Mysoogal<contact at mysoogal.com> wrote:> this encode was 2 pass with horrible output.Personally, I find that I get better video quality using quality-based encoding instead.