<html dir="ltr"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" id="owaParaStyle"></style> </head> <body style="zoom:1"> some interesting progress.. here is my code static GstFlowReturn IntelMediaDecodeChain(GstPad *pPad, GstBuffer *income_buffer) { GstFlowReturn ret = GST_FLOW_OK; MediaDecode*decode_if = (MediaDecode*) (GST_OBJECT_PARENT(pPad)); MediaDecodeImpl* pImpl = decode_if->pImpl; GstBuffer *outgoing_buffer = 0; bool bResult = pImpl->DecodeFunc(income_buffer, &outgoing_buffer); if( bResult == true ) { gst_buffer_unref(income_buffer); assert(outgoing_buffer); gst_buffer_set_caps(outgoing_buffer, GST_PAD_CAPS(decode _if->srcpad)); ret = gst_pad_push(decode _if->srcpad, outgoing_buffer ); <= If I replace outgoing_buffer with income_buffer, the whole pipleline will work. TRACE("gst_pad_push returning result: " << ret); } return ret; } And I find if i pass the income_buffer to the pipeline, it works fine, it must be some thing wrong with my new create GstBuffer or I forget to set some thing for the buffer. ________________________________________ From: Shi, John Sent: 17 November 2013 08:42 To: Discussion of the development of and with GStreamer Subject: RE: couldnt pass the GstBuffer to the srcpad. ________________________________________ From: gstreamer-devel-bounces@lists.freedesktop.org [gstreamer-devel-bounces@lists.freedesktop.org] on behalf of Shi, John Sent: 15 November 2013 15:46 To: gstreamer-devel@lists.freedesktop.org Subject: RE: couldnt pass the GstBuffer to the srcpad. Thanks, I thinkg we use stand rtp payload, and we pass the new create Gstbuffer to the next element (rtph264pay) but looks they are not happy. -----Original Message----- From: gstreamer-devel-bounces@lists.freedesktop.org [mailto:gstreamer-devel-bounces@lists.freedesktop.org] On Behalf Of Tim Müller Sent: 15 November 2013 11:42 To: gstreamer-devel@lists.freedesktop.ortprg Subject: Re: couldnt pass the GstBuffer to the srcpad. On Fri, 2013-11-15 at 10:27 +0000, Shi, John wrote: > We create a new Gstelement and basically it will process the video > frame and pass it to another element. It would help to have a little bit more information, e.g. what's the next element, what media types are involved. > But when we call gst_pad_push function I get function return -5 error > code. And here is the Debug information when GST_DEBUG=4 > > > gstreamer: basertppayload > gstbasertppayload.c:762:gst_basertppayload_prepare_push error: > subclass did not specify clock-rate > > gst_pad_push returning result: result: -5 > > 0x89a310 : Element doesn't implement handling of this stream. Please > file a bug. It would help to know what the exact elements involved are, and what exact version of things you're using. Is this an rtp payloader you have written yourself or an existing one? Cheers -Tim -- Tim Müller, Centricular Ltd - http://www.centricular.com _______________________________________________ gstreamer-devel mailing list gstreamer-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel Tyco Safety Products/CEM Systems Ltd. ________________________________ This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this e-mail, you are hereby notified that you must not disseminate, copy or take any action in respect of any information contained in it. If you have received this e-mail in error, please notify the sender immediately by e-mail and immediately destroy this e-mail and its attachments. _______________________________________________ gstreamer-devel mailing list gstreamer-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel Tyco Safety Products/CEM Systems Ltd. <hr> This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this e-mail, you are hereby notified that you must not disseminate, copy or take any action in respect of any information contained in it. If you have received this e-mail in error, please notify the sender immediately by e-mail and immediately destroy this e-mail and its attachments. </body> </html>