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</o:shapelayout></xml><![endif]--></head><body lang=PT-BR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> I intend to use Ogg+Speex for voice recording/playback in a VoIP app.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> I am experimenting with liboggz to get acquainted with its API. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> As test files I am using some Ogg-Speex files converted from WAV files with speexenc.exe.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> I wrote a little testing app in Visual Studio 2010 under Windows 7. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> I defined OggzReadPage and OggzReadPacket callbacks with oggz_set_read_page() and oggz_set_read_callback().<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> For the moment I am mainly having troubles with seeking. Maybe I am not using correctly liboggz API.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> What happens:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> - I open a Ogg Speex-encoded audio file with oggz_open("MyFile.spx", OGGZ_READ | OGGZ_AUTO); <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> - I have a loop of invocations of oggz_read() that triggers in the due time the page and packet callbacks defined by me.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> - But when I randomly do seeking by means of <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> ogg_int64_t rseek = oggz_seek_units(pOGGZ, posMsecs, SEEK_SET);<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> I get erratic results: <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> Many times rseek does not match posMsecs. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> The first page callback after the seek invocation refers to a page that is sometimes previous and sometimes after the page that contains posMsecs.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'> What rules are to be followed for seeking with liboggz and what exact results can be expected from it ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'>Thanks in advance<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas'>Julio Cabezas<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p></div></body></html>