Re: [Flac-dev] Re: seeking problems

[Christian HJ Wiesner]

Hi august wrote: Did you try OggFLAC and MkaFLAC as alternative containers ? no, I didnt? would that make a difference though? Yes, i think so. Josh may tell different if i am talking rubbish, but i dont expect that FLAC's native framing has an index or the like, like matroska has, to support fast seeking, so seeking will probably mainly work on a per-sample base. For OggFLAC you need libogg, the Xiph documentation should be describing how to seek in the file. But i dont know if using another container than native FLAC framing is an option for you ..... it's certainly an option, but I would love to know why normal FLAC seeking doesn't work. any hints? -august. It probably does work, but as i was assuming already, maybe to the best of its possibilities. Many native framings are not really perfectly suited for seeking, MPC and even MP3 are perfect examples for that. Vorbis is different here, its put into Ogg natively, and Ogg provides some means for better seeking like the 'granulepos', which is used to mark the Ogg pages containing the Vorbis audio streams, and can be used for enhanced seeking. matroska container will provide an index on top of that for the best possible seeking. mkvmerge/mmg ( http://mkvtoolnix.matroska.org ) can read both OggFLAC and native FLAC and will ouput a MKA file ( matroska audio ), if you want to test this. To play it on Windows, use either foobar2000 ( http://www.foobar2000.org ) or any DirectShow based player ( like WMP 6.4 ) in combination with the matroska full pack from http://packs.matroska.org . On Linux, mplayer and VLC will work for FLAC in MKA, same for MacOSX. For OggFLAC, the FLAC frontend can output it directly. Playback on Windows should work with the winamp plugin, but AFAIK there is no working DirectShow playback filter for that. Hope this was helpful Christian matroska project admin