<div dir="auto">Dear List,<div dir="auto"><div dir="auto"> </div><div dir="auto">I was interested to know if gstreamer rtsp can handle transmission of pure RAW video frames to a client. To be more specific, my question here is, if I transfer pure raw video frames with no encoding to a client using rtsp protocol, do I still need to do decoding of frames? If yes, can someone in the list explain the reason?</div><div dir="auto"> </div><div dir="auto">Secondly, in gstreamer, if I use raw encoding on video frames, what kind of encoding is performed on the frames? Does it compress the frames to a larger extent?</div><div dir="auto"> </div><div dir="auto">My understanding is if I encode the frame using h264 or vp8 or mpeg then only I have to decode. Please correct my understanding if I am wrong.</div><div dir="auto"> </div><div dir="auto">On the raw frames, can I use rtsp gstreamer protocol to visualize without decoding it. Is decoding mandatory?</div><div dir="auto"> </div><div dir="auto">Request the list to kindly clarify the above queries.</div><div dir="auto"> </div></div></div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 22, 2019, 19:45 <<a href="mailto:gstreamer-devel-request@lists.freedesktop.org">gstreamer-devel-request@lists.freedesktop.org</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send gstreamer-devel mailing list submissions to <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a> To subscribe or unsubscribe via the World Wide Web, visit <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> or, via email, send a message with subject or body 'help' to <a href="mailto:gstreamer-devel-request@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel-request@lists.freedesktop.org</a> You can reach the person managing the list at <a href="mailto:gstreamer-devel-owner@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel-owner@lists.freedesktop.org</a> When replying, please edit your Subject line so it is more specific than "Re: Contents of gstreamer-devel digest..." Today's Topics: 1. Re: Sound volume is very low when playing mkv file (longkas) 2. Change RTSP Server source IP address (David Jaggard) 3. AW: Change RTSP Server source IP address (Thornton, Keith) 4. Re: Change RTSP Server source IP address (David Jaggard) 5. Re: Sound volume is very low when playing mkv file (longkas) 6. Re: Sound volume is very low when playing mkv file (Tim Müller) 7. Re: MPEG-TS the ongoing story (Russel Winder) ---------------------------------------------------------------------- Message: 1 Date: Wed, 22 May 2019 07:23:34 -0500 (CDT) From: longkas <<a href="mailto:longkas@gmail.com" target="_blank" rel="noreferrer">longkas@gmail.com</a>> To: <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a> Subject: Re: Sound volume is very low when playing mkv file Message-ID: <<a href="mailto:1558527814965-0.post@n4.nabble.com" target="_blank" rel="noreferrer">1558527814965-0.post@n4.nabble.com</a>> Content-Type: text/plain; charset=us-ascii I'm not sure if it is because the audio stream in the mkv has 6 channels, I'm using decodebin to translate streams, maybe I could combine it into 2 channel audio streams, I need some help BR -- Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a> ------------------------------ Message: 2 Date: Wed, 22 May 2019 14:08:52 +0100 From: David Jaggard <<a href="mailto:davywj@gmail.com" target="_blank" rel="noreferrer">davywj@gmail.com</a>> To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> Subject: Change RTSP Server source IP address Message-ID: <<a href="mailto:CAJAmR4ZOSjBpSeOKRc0fZ6A71uwgVXU4C9W1c2qFPtGhT-6_Rg@mail.gmail.com" target="_blank" rel="noreferrer">CAJAmR4ZOSjBpSeOKRc0fZ6A71uwgVXU4C9W1c2qFPtGhT-6_Rg@mail.gmail.com</a>> Content-Type: text/plain; charset="utf-8" Hello Using the example in the test-readme.c file of the RTSP server, how can I change the source IP address of the RTP packets to specific address on a multi-homed PC? At present it is choosing the first address. -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190522/b90779fe/attachment-0001.html" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190522/b90779fe/attachment-0001.html</a>> ------------------------------ Message: 3 Date: Wed, 22 May 2019 13:23:35 +0000 From: "Thornton, Keith" <<a href="mailto:keith.thornton@zeiss.com" target="_blank" rel="noreferrer">keith.thornton@zeiss.com</a>> To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> Subject: AW: Change RTSP Server source IP address Message-ID: <7153D1686E3590498D57D986E0F83BA60ADCB889@adeerl01sms004> Content-Type: text/plain; charset="utf-8" Hi, After calling gst_rtsp_server_new you can set the address with gst_rtsp_server_set_address otherwise it will use 127.0.0.1 Von: gstreamer-devel <<a href="mailto:gstreamer-devel-bounces@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel-bounces@lists.freedesktop.org</a>> Im Auftrag von David Jaggard Gesendet: Mittwoch, 22. Mai 2019 15:09 An: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> Betreff: Change RTSP Server source IP address Hello Using the example in the test-readme.c file of the RTSP server, how can I change the source IP address of the RTP packets to specific address on a multi-homed PC? At present it is choosing the first address. -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190522/7a369e10/attachment-0001.html" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190522/7a369e10/attachment-0001.html</a>> ------------------------------ Message: 4 Date: Wed, 22 May 2019 14:27:49 +0100 From: David Jaggard <<a href="mailto:davywj@gmail.com" target="_blank" rel="noreferrer">davywj@gmail.com</a>> To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> Subject: Re: Change RTSP Server source IP address Message-ID: <<a href="mailto:CAJAmR4aph0A0O2Q2ooFqX9%2Ba7iUq7-qUTovKmJmWwm1kipiwug@mail.gmail.com" target="_blank" rel="noreferrer">CAJAmR4aph0A0O2Q2ooFqX9+a7iUq7-qUTovKmJmWwm1kipiwug@mail.gmail.com</a>> Content-Type: text/plain; charset="utf-8" Hi Keith, Thanks for your reply. That sets the listen address of the RTSP server but doesn't change the src address of the RTP packets. On Wed, 22 May 2019 at 14:23, Thornton, Keith <<a href="mailto:keith.thornton@zeiss.com" target="_blank" rel="noreferrer">keith.thornton@zeiss.com</a>> wrote: > Hi, > > After calling gst_rtsp_server_new you can set the address with > gst_rtsp_server_set_address otherwise it will use 127.0.0.1 > > > > *Von:* gstreamer-devel <<a href="mailto:gstreamer-devel-bounces@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel-bounces@lists.freedesktop.org</a>> *Im > Auftrag von *David Jaggard > *Gesendet:* Mittwoch, 22. Mai 2019 15:09 > *An:* Discussion of the development of and with GStreamer < > <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> > *Betreff:* Change RTSP Server source IP address > > > > Hello > > > > Using the example in the test-readme.c file of the RTSP server, how can I > change the source IP address of the RTP packets to specific address on a > multi-homed PC? > > > > At present it is choosing the first address. > > > > > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a> > <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> -------------- next part -------------- An HTML attachment was scrubbed... URL: <<a href="https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190522/7b8630e1/attachment-0001.html" rel="noreferrer noreferrer" target="_blank">https://lists.freedesktop.org/archives/gstreamer-devel/attachments/20190522/7b8630e1/attachment-0001.html</a>> ------------------------------ Message: 5 Date: Wed, 22 May 2019 08:50:28 -0500 (CDT) From: longkas <<a href="mailto:longkas@gmail.com" target="_blank" rel="noreferrer">longkas@gmail.com</a>> To: <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a> Subject: Re: Sound volume is very low when playing mkv file Message-ID: <<a href="mailto:1558533028272-0.post@n4.nabble.com" target="_blank" rel="noreferrer">1558533028272-0.post@n4.nabble.com</a>> Content-Type: text/plain; charset=us-ascii Ok, my research is to use volume element to raise the volume, and use audioconvert to downmix the 5.1 DTS audio to stereo, I dont know how to find the current volume though: gst-launch-1.0 -v filesrc location=g:/gtg.mkv ! decodebin ! audio/x-raw,channels=6 \ ! audioconvert mix-matrix="<<(float)1.0, (float)0.0, (float)1.0, (float)1.0, (float)1.0, (float)0.0>, <(float)0.0, (float)1.0, (float)1.0, (float)1.0, (float)0.0,(float)1.0>>" ! audio/x-raw,channels=2 \ ! volume volume=10.0 ! autoaudiosink -- Sent from: <a href="http://gstreamer-devel.966125.n4.nabble.com/" rel="noreferrer noreferrer" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/</a> ------------------------------ Message: 6 Date: Wed, 22 May 2019 15:00:29 +0100 From: Tim Müller <<a href="mailto:tim@centricular.com" target="_blank" rel="noreferrer">tim@centricular.com</a>> To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> Subject: Re: Sound volume is very low when playing mkv file Message-ID: <<a href="mailto:748661b0e32dc2178225fa7a9ff0f4ca5a518717.camel@centricular.com" target="_blank" rel="noreferrer">748661b0e32dc2178225fa7a9ff0f4ca5a518717.camel@centricular.com</a>> Content-Type: text/plain; charset="UTF-8" On Wed, 2019-05-22 at 07:23 -0500, longkas wrote: > I'm not sure if it is because the audio stream in the mkv has 6 > channels, I'm using decodebin to translate streams, maybe I could > combine it into 2channel audio streams, I need some help What codec/format is the audio stream (gst-discoverer-1.0 -v file.mkv)? And what decoder is being used in your case? (see output of gst-play- 1.0 -v or gst-launch-1.0 -v) Is the decoder outputting 2 channels or 6 channels? It might be that this is caused by e.g. AC-3 audio being downmixed to 2 channels improperly. Cheers -Tim -- Tim Müller, Centricular Ltd - <a href="http://www.centricular.com" rel="noreferrer noreferrer" target="_blank">http://www.centricular.com</a> ------------------------------ Message: 7 Date: Wed, 22 May 2019 15:15:06 +0100 From: Russel Winder <<a href="mailto:russel@winder.org.uk" target="_blank" rel="noreferrer">russel@winder.org.uk</a>> To: Discussion of the development of and with GStreamer <<a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer">gstreamer-devel@lists.freedesktop.org</a>> Subject: Re: MPEG-TS the ongoing story Message-ID: <<a href="mailto:702b56ef5099a0db13a551d981ebe810d1dab8fb.camel@winder.org.uk" target="_blank" rel="noreferrer">702b56ef5099a0db13a551d981ebe810d1dab8fb.camel@winder.org.uk</a>> Content-Type: text/plain; charset="utf-8" On Wed, 2019-05-22 at 13:20 +0300, Sebastian Dröge wrote: > On Wed, 2019-05-22 at 10:32 +0100, Russel Winder wrote: > > I am wondering if I am missing something other than "it's never been > > needed before". > > That seems to be the case, yes. Please send a patch if you need it :) I am guessing then that I need to do the C thing for entry into the MPEG-TS library itself rather than just fill the gap in Rust in the MPEG-TS wrapper. And I promised myself never to do any C programming again. Oh well. Would changes get into GStreamer 1.16.1 or would it have to wait for 1.18.0? -- Russel. =========================================== Dr Russel Winder t: +44 20 7585 2200 41 Buckmaster Road m: +44 7770 465 077 London SW11 1EN, UK w: <a href="http://www.russel.org.uk" rel="noreferrer noreferrer" target="_blank">www.russel.org.uk</a> -------------- next part -------------- A non-text attachment was scrubbed... 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