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</o:shapelayout></xml><![endif]--></head><body lang=ZH-CN link=blue vlink=purple style='text-justify-trim:punctuation'><div class=WordSection1><p class=MsoNormal align=left style='text-align:left'><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I connects a mpeg4-2 video parser/codec after qtdemux, the first start_code I could find is gop (0xb3) or vop (0xb6).<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Why isn’t there video-object-layer header (0x20)?<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>How could I parse vop with the necessary data in vol?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Does it mean something wrong in the stream? Or I should construct a vol with default value? (what are the default value?)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>However, totem can playback the stream.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I don’t think it is a h263 stream with short header since it doesn’t start with 16 bits ‘0’, but 23 bits’0’<o:p></o:p></span></p></div></body></html>