<div dir="ltr">Thanks first!<div>Unluckily, it not works for me, I am regret to update the gstreamer from source code, maybe it mixs the 1.8.3 and 1.16.0.</div><div><br></div><div>Other words:</div><div>when I decode the h264 and encode it in h264 in sender:</div><div> gst-launch-1.0 -v filesrc location=easy_c.mp4 ! qtdemux ! h264parse ! avdec_h264 ! x264enc ! rtph264pay ! udpsink host=127.0.0.1</div><div><br></div><div>Result:</div><div> the receiver can show the video, but with much delay and drop a lot of frame:</div><div>``````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````</div><div>WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: Pipeline construction is invalid, please add queues.<br>Additional debug info:<br>../libs/gst/base/gstbasesink.c(1218): gst_base_sink_query_latency (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:<br>Not enough buffering available for the processing deadline of 0:00:00.015000000, add enough queues to buffer 0:00:00.015000000 additional data. Shortening processing latency to 0:00:00.000000000.<br>WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.<br>Additional debug info:<br>../libs/gst/base/gstbasesink.c(3005): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:<br>There may be a timestamping problem, or this computer is too slow.<br>WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.<br>Additional debug info:<br>../libs/gst/base/gstbasesink.c(3005): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:<br>There may be a timestamping problem, or this computer is too slow.<br></div><div>``````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````</div><div><br></div><div>//dengke</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Aug 21, 2019 at 9:40 PM Mathieu Duponchelle <<a href="mailto:mathieu@centricular.com">mathieu@centricular.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
Hey,<br>
<br>
Try specifying a host on the udpsink and an address on the udpsrc,
these pipelines work for me:<br>
<br>
Receiver:<br>
<br>
gst-launch-1.0 udpsrc caps="application/x-rtp" address=127.0.0.1 !
rtph264depay ! h264parse ! avdec_h264 ! videoconvert ! queue !
xvimagesink<br>
<br>
Sender:<br>
<br>
gst-launch-1.0 filesrc location=/home/meh/Videos/small_ball.mp4 !
qtdemux ! h264parse ! rtph264pay ! udpsink host=127.0.0.1<br>
<br>
<div class="gmail-m_7286961379687788127moz-cite-prefix">On 8/21/19 10:49 AM, Du Dengke wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>Hi experts:</div>
OS: Ubuntu 16.04.6 LTS<br>
<div>Gstreamer Version: I update it to 1.16.0</div>
<div><br>
</div>
<div>Sender and Receiver both on one machine.</div>
<div><br>
</div>
<div>Sender:</div>
<div> GST_DEBUG=4 gst-launch-1.0 filesrc location=easy_c.mp4
! qtdemux ! h264parse ! rtph264pay ! udpsink<br>
</div>
<div>I using wireshark to watch, all thing go well, something
like:</div>
<div> ......</div>
<div> 31072 121.161706931 127.0.0.1 127.0.0.1 UDP 1442 51378
→ 5004 Len=1400</div>
<div> ......</div>
<div><br>
</div>
<div>Receiver:</div>
<div> GST_DEBUG=4 gst-launch-1.0 udpsrc
caps="application/x-rtp" ! rtph264depay ! h264parse !
avdec_h264 ! xvimagesink</div>
<div><br>
</div>
<div>seems go well, but nothing appear, I take some log here:</div>
<div>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</div>
<div>Setting pipeline to PLAYING ...<br>
0:00:00.020110200 4381 0x202cc00 INFO
GST_EVENT gstevent.c:1450:gst_event_new_latency: creating
latency event 0:00:00.000000000<br>
0:00:00.020125274 4381 0x202cc00 INFO
bin gstbin.c:2780:gst_bin_do_latency_func:<pipeline0>
configured latency of 0:00:00.000000000<br>
0:00:00.020136579 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2503:gst_bin_element_set_state:<xvimagesink0>
current READY pending PAUSED, desired next PLAYING<br>
0:00:00.020142248 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2957:gst_bin_change_state_func:<pipeline0>
child 'xvimagesink0' is changing state asynchronously to
PLAYING<br>
0:00:00.020148377 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2503:gst_bin_element_set_state:<avdec_h264-0>
current PAUSED pending VOID_PENDING, desired next PLAYING<br>
0:00:00.020154187 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2676:gst_element_continue_state:<avdec_h264-0>
completed state change to PLAYING<br>
0:00:00.020159424 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2579:_priv_gst_element_state_changed:<avdec_h264-0>
notifying about state-changed PAUSED to PLAYING (VOID_PENDING
pending)<br>
0:00:00.020166928 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2951:gst_bin_change_state_func:<pipeline0>
child 'avdec_h264-0' changed state to 4(PLAYING) successfully<br>
0:00:00.020173149 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2503:gst_bin_element_set_state:<h264parse0>
current PAUSED pending VOID_PENDING, desired next PLAYING<br>
0:00:00.020178564 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2676:gst_element_continue_state:<h264parse0>
completed state change to PLAYING<br>
0:00:00.020183568 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2579:_priv_gst_element_state_changed:<h264parse0>
notifying about state-changed PAUSED to PLAYING (VOID_PENDING
pending)<br>
0:00:00.020190138 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2951:gst_bin_change_state_func:<pipeline0>
child 'h264parse0' changed state to 4(PLAYING) successfully<br>
0:00:00.020196292 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2503:gst_bin_element_set_state:<rtph264depay0>
current PAUSED pending VOID_PENDING, desired next PLAYING<br>
0:00:00.020201631 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2676:gst_element_continue_state:<rtph264depay0>
completed state change to PLAYING<br>
0:00:00.020206440 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2579:_priv_gst_element_state_changed:<rtph264depay0>
notifying about state-changed PAUSED to PLAYING (VOID_PENDING
pending)<br>
0:00:00.020212854 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2951:gst_bin_change_state_func:<pipeline0>
child 'rtph264depay0' changed state to 4(PLAYING) successfully<br>
0:00:00.020222030 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2676:gst_element_continue_state:<udpsrc0>
completed state change to PLAYING<br>
0:00:00.020228362 4381 0x202cc00 INFO
GST_STATES
gstelement.c:2579:_priv_gst_element_state_changed:<udpsrc0>
notifying about state-changed PAUSED to PLAYING (VOID_PENDING
pending)<br>
0:00:00.020234673 4381 0x202cc00 INFO
GST_STATES
gstbin.c:2951:gst_bin_change_state_func:<pipeline0>
child 'udpsrc0' changed state to 4(PLAYING) successfully<br>
New clock: GstSystemClock<br>
0:01:17.678501741 4381 0x21460a0 INFO
GST_EVENT gstevent.c:901:gst_event_new_segment: creating
segment event time segment start=0:00:00.000000000,
offset=0:00:00.000000000, stop=99:99:99.999999999,
rate=1.000000, applied_rate=1.000000, flags=0x00,
time=0:00:00.000000000, base=0:00:00.000000000, position
0:00:00.000000000, duration 99:99:99.999999999<br>
0:01:17.678521905 4381 0x21460a0 INFO
basesrc gstbasesrc.c:2962:gst_base_src_loop:<udpsrc0>
marking pending DISCONT<br>
0:01:17.678543028 4381 0x21460a0 INFO
GST_EVENT gstevent.c:901:gst_event_new_segment: creating
segment event time segment start=0:00:00.000000000,
offset=0:00:00.000000000, stop=99:99:99.999999999,
rate=1.000000, applied_rate=1.000000, flags=0x00,
time=0:00:00.000000000, base=0:00:00.000000000, position
0:01:17.658403007, duration 99:99:99.999999999<br>
</div>
<div>
<div>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</div>
The receiver stop here.</div>
<div><br>
</div>
<div>My question:</div>
<div> How to let me know the receiver receive the packets,
and why can't i play it?</div>
<div><br>
</div>
<div>//dengke</div>
<div><br>
</div>
<div><br>
</div>
</div>
<br>
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