New submission from Maik Merten <[EMAIL PROTECTED]>: "Thusnelda" is a new experimental Theora encoder (see http://web.mit.edu/xiphmont/Public/theora/demo5.html ). It generates bitstreams in accordance to the Theora 1.0 specification, while the old Theora encoder only used a "VP3 subset" of that spec.
ffmpeg cannot properly decode e.g. http://web.mit.edu/xiphmont/Public/theora/test50-skip5-acdc16.ogg (see attached screenshot). Main bitstream-usage differences to the old encoder: - Thusnelda will code chroma blocks for macroblocks with no luma. - The old encoder never used 4MV on partially-coded macroblocks. This list will most likely grow as Thusnelda progresses (e.g. per-block quantizers), but the current problems may most likely be attributed to the first item of the list. ---------- messages: 2768 nosy: maikmerten priority: normal status: new substatus: new title: VP3/Theora decoder cannot correctly decode Theora streams created with "Thusnelda" encoder type: bug ______________________________________________________ FFmpeg issue tracker <[EMAIL PROTECTED]> <https://roundup.mplayerhq.hu/roundup/ffmpeg/issue579> ______________________________________________________
