On 23/07/15 11:32, Matthieu Bouron wrote: > On Thu, Jul 23, 2015 at 11:04 AM, tim nicholson < > nichot20-at-yahoo....@ffmpeg.org> wrote: > >> On 22/07/15 14:29, Matthieu Bouron wrote: >>> Hello there, >>> >>> The following patchset add support for j2ki/mxf files (which store frames >>> using the separate fields / segmented frame layouts, ie: fields are >>> stored in seperate frames) through the insertion of filters at the >>> ffmpeg/ffplay level. It differs from my original attempt which introduced >>> modifications at the decoder level, which in my opinion was wrong and >>> introduced several limitations, such as: >>> >>> [..] >> >> I may be missing something here, as my mind has been on other things. >> But currently most mxf material I see that ffmpeg correctly handles is >> "frame wrapped" with the frame layout as type 1 (SEPARATE_FIELDS). >> > > Can you provide samples with this layout ? I might have misinterpreted the > MXF > specs on this one. My understating is that, separated fields (as well as > segmented frame) means > that the fields are stored in a different "packet" (that might no be the > right world for it). > > Also it might be specific to jpeg2000 (see below), i'll have to look again > at the mxf/jpeg2000 spec again. >
I have added a 4 frame example to the trac ticket of interlaced IMX50 material. according to mxf2raw (from bmxlib) this file is flagged SEPARATE_FIELDS. > [..] -- Tim. Key Fingerprint 38CF DB09 3ED0 F607 8B67 6CED 0C0B FC44 8B0B FC83 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel