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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Hello, I have a question.<o:p></o:p></p><p class=MsoNormal><span lang=RU><o:p> </o:p></span></p><p class=MsoNormal>The task is to save VP8 from RTP packets into the webm file.<o:p></o:p></p><p class=MsoNormal>There are all RTP packets already saved into the file.<o:p></o:p></p><p class=MsoNormal>I am using pipeline like:<o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:#A31515'>appsrc block=true do-timestamp=true format=3 is-live=true name=video_appsrc "</span><span style='font-size:9.5pt;font-family:Consolas;color:black'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:9.5pt;font-family:Consolas;color:black'> </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515'>"caps=\"application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)VP8-DRAFT-IETF-01\" ! "</span><span style='font-size:9.5pt;font-family:Consolas;color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.5pt;font-family:Consolas;color:black'> </span><span style='font-size:9.5pt;font-family:Consolas;color:#A31515'>"rtpvp8depay wait-for-keyframe=true ! webmmux name=mux ! filesink location=%s<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I assume that I get an error when resolution of the video changes into the stream:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas'>matroskamux matroska-mux.c:975:gst_matroska_mux_video_pad_setcaps:<mux> error: Caps changes are not supported by Matroska<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas'>0:00:00.371142012 26321 0xdcb8f0 INFO GST_ERROR_SYSTEM gstelement.c:2224:gst_element_message_full_with_details:<mux> posting message: Could not multiplex stream.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas'>0:00:00.371155378 26321 0xdcb8f0 INFO GST_ERROR_SYSTEM gstelement.c:2251:gst_element_message_full_with_details:<mux> posted error message: Could not multiplex stream.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:Consolas'>0:00:00.371169976 26321 0xdcb8f0 WARN matroskamux matroska-mux.c:1356:gst_matroska_mux_video_pad_setcaps:<mux> pad video_0 refused caps video/x-vp8, framerate=(fraction)0/1, height=(int)180, width=(int)320, profile=(string)0<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Please advise what I am doing wrong or maybe point me on error in pipeline<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you in advance<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>