<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> <p><br> </p> <br> <div class="moz-cite-prefix">On 2018年10月10日 13:40, Nicolas Dufresne wrote:<br> </div> <blockquote type="cite" cite="mid:CAKQmDh_GOBqmRNbr6MiUO-gvbv48S0=0pK83t109rWAO-jahkw@mail.gmail.com"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <div dir="auto"> <div><br> <div class="gmail_extra"><br> <div class="gmail_quote">Le 9 oct. 2018 23 h 42, "Dengke Du" <<a href="mailto:dengke.du@windriver.com" moz-do-not-send="true">dengke.du@windriver.com</a>> a écrit :<br type="attribution"> <blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi all<br> <br> Gstreamer version: 1.14.2<br> <br> My device info: v4l2-ctl --list-formats<br> <br> ioctl: VIDIOC_ENUM_FMT<br> Index : 0<br> Type : Video Capture<br> Pixel Format: 'YUYV'<br> Name : YUYV 4:2:2<br> <br> Index : 1<br> Type : Video Capture<br> Pixel Format: 'MJPG' (compressed)<br> Name : Motion-JPEG<br> <br> Raspberry zero wifi as a server side:<br> <br> runing: GST_DEBUG=3 test-launch "( v4l2src ! image/jpeg ! jpegdec ! <br> x264enc tune=zerolatency ! rtph264pay name=pay0 pt=96 )"<br> </blockquote> </div> </div> </div> <div dir="auto"><br> </div> <div dir="auto">You are doing capture, software decode, software encode on a single thread, on the slowest PI. You should look forward using raw capture and omxh264enc, or doing directly encoded capture using rpicamsrc.</div> </div> </blockquote> <br> Thanks, but my device was USB camera, not raspberrypi camera module, does rpicamsrc working?<br> <br> <blockquote type="cite" cite="mid:CAKQmDh_GOBqmRNbr6MiUO-gvbv48S0=0pK83t109rWAO-jahkw@mail.gmail.com"> <div dir="auto"> <div dir="auto"><br> </div> <div dir="auto"> <div class="gmail_extra"> <div class="gmail_quote"> <blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <br> Ubuntu 16.04 as a client side:<br> <br> runing: gst-launch-1.0 rtspsrc location=<a class="moz-txt-link-rfc2396E" href="rtsp://rasp-ip:8554/test">"rtsp://rasp-ip:8554/test"</a> <br> latency=0 ! rtph264depay ! decodebin ! videoconvert ! ximagesink<br> <br> The server side show the following:<br> <br> --------------------------------------------------------------------------------------<br> <br> root@raspberrypi0-wifi:~# GST_DEBUG=3 test-launch "( v4l2src ! <br> image/jpeg ! jpegdec ! x264enc tune=zerolatency ! rtph264pay name=pay0 <br> pt=96 )"<br> stream ready at <a class="moz-txt-link-freetext" href="rtsp://">rtsp://</a><a href="http://127.0.0.1:8554/test" rel="noreferrer noreferrer" target="_blank" moz-do-not-send="true">127.0.0.1:8554/test</a><br> 0:01:30.683202000 305 0xb4e0ee90 FIXME videodecoder <br> gstvideodecoder.c:933:gst_video_decoder_drain_out:<jpegdec0> Sub-class <br> should implement drain()<br> 0:01:30.718953000 305 0xb4e0ee90 WARN v4l2bufferpool <br> gstv4l2bufferpool.c:790:gst_v4l2_buffer_pool_start:<v4l2src0:pool:src> <br> Uncertain or not enough buffers, enabling copy threshold<br> 0:01:31.065635000 305 0xb4e0ee90 FIXME videodecoder <br> gstvideodecoder.c:933:gst_video_decoder_drain_out:<jpegdec0> Sub-class <br> should implement drain()<br> 0:01:32.019512000 305 0x1ba0290 FIXME rtspmedia <br> rtsp-media.c:3835:gst_rtsp_media_suspend: suspend for dynamic pipelines <br> needs fixing<br> 0:01:32.035965000 305 0x1ba0290 FIXME rtspmedia <br> rtsp-media.c:3835:gst_rtsp_media_suspend: suspend for dynamic pipelines <br> needs fixing<br> 0:01:32.038393000 305 0x1ba0290 WARN rtspmedia <br> rtsp-media.c:3861:gst_rtsp_media_suspend: media 0xb5c2f1c0 was not prepared<br> 0:01:32.106016000 305 0x1ba0290 FIXME rtspclient <br> rtsp-client.c:1646:handle_play_request:<GstRTSPClient@0x1ca0878> Add <br> support for seek style (null)<br> 0:01:32.109618000 305 0x1ba0290 FIXME rtspmedia <br> rtsp-media.c:2434:gst_rtsp_media_seek_full:<GstRTSPMedia@0xb5c2f1c0> <br> Handle going back to 0 for none live not seekable streams.<br> 0:01:44.798303000 305 0xb4e0ee90 WARN v4l2src <br> gstv4l2src.c:911:gst_v4l2src_create:<v4l2src0> Timestamp does not <br> correlate with any clock, ignoring driver timestamps<br> 0:01:44.800910000 305 0xb4e0ee90 WARN v4l2src <br> gstv4l2src.c:976:gst_v4l2src_create:<v4l2src0> lost frames detected: <br> count = 22 - ts: 0:00:14.088149667<br> 0:01:48.783236000 305 0xb4e0ee90 WARN v4l2src <br> gstv4l2src.c:976:gst_v4l2src_create:<v4l2src0> lost frames detected: <br> count = 59 - ts: 0:00:18.072994667<br> 0:01:50.959261000 305 0xb4e0ee90 WARN v4l2src <br> gstv4l2src.c:976:gst_v4l2src_create:<v4l2src0> lost frames detected: <br> count = 74 - ts: 0:00:20.249009667<br> --------------------------------------------------------------------------------------<br> <br> The client side doesn't show any images.<br> <br> If the server on another ubuntu 16.04 machines, the client side can show <br> normally.<br> <br> Why the v4l2src lost frames on raspberry?<br> <br> _______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.freedesktop.org" target="_blank" rel="noreferrer" moz-do-not-send="true">gstreamer-devel@lists.freedesktop.org</a><br> <a href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" rel="noreferrer noreferrer" target="_blank" moz-do-not-send="true">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a><br> </blockquote> </div> <br> </div> </div> </div> <br> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ gstreamer-devel mailing list <a class="moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </pre> </blockquote> <br> </body> </html>