<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Hi, > Hi, the consumer needs an SPS and PPS. This could be transmitted by setting the config-interval parameter of rtph264pay I already tried this: const auto payloader = ::gst_element_factory_make("rtph264pay", nullptr); ::g_object_set(G_OBJECT(payloader), <pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> "config-interval", 1,</pre> <pre style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;"> nullptr); </pre> with different values, as "-1", "1" and so on, but it does not help. <div class="moz-cite-prefix">10.01.2018 17:14, Thornton, Keith пишет: </div> <blockquote type="cite" cite="mid:7153D1686E3590498D57D986E0F83BA606E405@adeerl01sms004"> <pre wrap="">Hi, the consumer needs an SPS and PPS. This could be transmitted by setting the config-interval parameter of rtph264pay. -----Ursprüngliche Nachricht----- Von: gstreamer-devel [<a class="moz-txt-link-freetext" href="mailto:gstreamer-devel-bounces@lists.freedesktop.org">mailto:gstreamer-devel-bounces@lists.freedesktop.org</a>] Im Auftrag von Denis Shienkov Gesendet: Mittwoch, 10. Januar 2018 14:23 An: Discussion of the development of and with GStreamer <a class="moz-txt-link-rfc2396E" href="mailto:gstreamer-devel@lists.freedesktop.org"><gstreamer-devel@lists.freedesktop.org></a> Cc: Tim Müller <a class="moz-txt-link-rfc2396E" href="mailto:tim@centricular.com"><tim@centricular.com></a> Betreff: Video artifacts on a receiver side after re-creating of its pipeline Hi all. I use two own applications: producer & consumer. A producer generates the video stream and sends to the UDP sink. A consumer receives this stream and displays a video content. When the consumer started before the producer, then I did not get any video artifacts on an consumer. But, when I try to do stop/start the consumer (when the producer already running), then I see many video artifacts on the consumer. A possible workaround it is try to restart the producer (in this case the consumer receives good video content). How to solve this issue? UPD: A producer uses the following pipeline's equivalent: [code] void Producer::start() { ... ... m_appsrc = ::gst_element_factory_make("appsrc", nullptr); ::g_object_set(G_OBJECT(m_appsrc), "stream-type", GST_APP_STREAM_TYPE_STREAM, "is-live", true, "format", GST_FORMAT_TIME, nullptr); const auto videoconvert = ::gst_element_factory_make("videoconvert", nullptr); const auto videoenc = ::gst_element_factory_make("x264enc", nullptr); ::gst_util_set_object_arg(G_OBJECT(videoenc), "tune", "zerolatency"); ::g_object_set(G_OBJECT(videoenc), "key-int-max", 10, nullptr); const auto parse = ::gst_element_factory_make("h264parse", nullptr); ::g_object_set(G_OBJECT(parse), "config-interval", -1, nullptr); const auto payloader = ::gst_element_factory_make("rtph264pay", nullptr); const auto udpsink = ::gst_element_factory_make("udpsink", nullptr); const auto host = destination.host().toLocal8Bit(); const auto port = destination.port(); ::g_object_set(G_OBJECT(udpsink), "host", host.constData(), "port", port, nullptr); m_pipeline = ::gst_pipeline_new("pipeline"); ... ... if (!m_appsrc || !videoconvert || !videoenc || !payloader || !udpsink) { qCCritical(gstProducerControl) << "Unable to create one of pipeline element"; } ::gst_bin_add_many(GST_BIN(m_pipeline), m_appsrc, videoconvert, videoenc, parse, payloader, udpsink, nullptr); const auto result = ::gst_element_link_many(m_appsrc, videoconvert, videoenc, parse, payloader, udpsink, nullptr); ... const auto status = ::gst_element_set_state(m_pipeline, GST_STATE_PLAYING); ... } void Foo::stop() { ... ::gst_element_set_state(m_pipeline, GST_STATE_NULL); ::gst_object_unref(m_pipeline); m_appsrc = nullptr; m_pipeline = nullptr; ... } [/code] A consumer uses the following pipeline's equivalent: [code] void Consumer::start() { ... const auto udpsrc = ::gst_element_factory_make("udpsrc", nullptr); ::g_object_set(G_OBJECT(udpsrc), "address", address.constData(), "port", port, nullptr); const auto srccaps = ::gst_caps_new_simple( "application/x-rtp", "", G_TYPE_STRING, "", nullptr); ::g_object_set(G_OBJECT(udpsrc), "caps", srccaps, nullptr); const auto depay = ::gst_element_factory_make("rtph264depay", nullptr); const auto decodebin = ::gst_element_factory_make("decodebin", nullptr); const auto videoconvert = ::gst_element_factory_make("videoconvert", nullptr); const auto videofilter = ::gst_element_factory_make("capsfilter", nullptr); const auto videofiltercaps = ::gst_caps_new_simple( "video/x-raw", "format", G_TYPE_STRING, "BGRA", nullptr); ::g_object_set(G_OBJECT(videofilter), "caps", videofiltercaps, nullptr); m_videosink = m_renderer->videoSink(); ::g_object_set(G_OBJECT(m_videosink), "sync", false, nullptr); m_pipeline = ::gst_pipeline_new("pipeline"); ... ::gst_bin_add_many(GST_BIN(m_pipeline), udpsrc, depay, decodebin, videoconvert, videofilter, m_videosink, nullptr); ::gst_element_link_many(udpsrc, depay, decodebin, nullptr); ::gst_element_link_many(videoconvert, videofilter, m_videosink, nullptr); ... const auto status = ::gst_element_set_state(m_pipeline, GST_STATE_PLAYING); ... } void Consumer::stop() { ::gst_element_set_state(m_pipeline, GST_STATE_NULL); ::gst_object_unref(m_pipeline); m_videosink = nullptr; m_pipeline = nullptr; } [/code] BR, Denis _______________________________________________ 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> _______________________________________________ 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> </body> </html>