<div dir="auto">it would be more helpful with the GST pipeline in question when asking questions (excuse me if the mail contains the sample but I could not see it).<div dir="auto"><br></div><div dir="auto">Usually adding queues and rtpjitterbuffer could help, with proper HW decoder.</div><div dir="auto"><br></div><div dir="auto">Regards,</div><div dir="auto"><br></div><div dir="auto">Yu</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 29 Mar 2022, 9.56 Hogan Tan via gstreamer-devel, <<a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><p style="margin-top:0px;color:rgb(51,51,51);font-family:DIN-Web-Pro,Helvetica,Arial,sans-serif;font-size:15px;letter-spacing:0.15px">When running <code style="font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace;font-size:1em;max-width:400px">gst-play-1.0</code> command I get the following output. The pixelation occurs when there are movements.</p><p style="color:rgb(51,51,51);font-family:DIN-Web-Pro,Helvetica,Arial,sans-serif;font-size:15px;letter-spacing:0.15px">However, VLC and FFMPEG are able to play the RTSP stream without trouble.</p><p style="color:rgb(51,51,51);font-family:DIN-Web-Pro,Helvetica,Arial,sans-serif;font-size:15px;letter-spacing:0.15px">Is this an issue with gstreamer pipeline or the RTSP stream?</p><p style="color:rgb(51,51,51);font-family:DIN-Web-Pro,Helvetica,Arial,sans-serif;font-size:15px;letter-spacing:0.15px">I am currently on a Windows machine running <code style="font-family:Consolas,Menlo,Monaco,"Lucida Console","Liberation Mono","DejaVu Sans Mono","Bitstream Vera Sans Mono","Courier New",monospace;font-size:1em;max-width:400px">gst-play</code>.</p><img src="cid:ii_l1bsag3i0" alt="image.png" width="542" height="319"><div><br></div><div>Some debug logs when running `gst-play-1.0` with debug log level 3:</div><div>0:00:05.868642000 12448 000001B1409B3BC0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.875494000 12448 000001B1409B3BC0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.882300000 12448 000001B1409B3BC0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.888922000 12448 000001B1409B3BC0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.894567000 12448 000001B1409B3BC0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.902188000 12448 000001B1409B3BC0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.910150000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.917668000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.922917000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.930363000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.937393000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.944409000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.950392000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.956925000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.963071000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.969569000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.974387000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.982608000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:05.987964000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:05.995258000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:06.001121000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:06.007622000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:06.013360000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:06.019841000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:06.026270000 12448 000001B1409B32C0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:06.032003000 12448 000001B1409B32C0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:06.036669000 12448 000001B1409B3BC0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:06.044254000 12448 000001B1409B3BC0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>0:00:06.050019000 12448 000001B1409B3BC0 WARN video-info video-info.c:200:validate_colorimetry: Need to specify a color matrix when using YUV format (I420)<br>0:00:06.058035000 12448 000001B1409B3BC0 WARN video-info video-info.c:515:gst_video_info_from_caps: invalid colorimetry, using default<br>Redistribute latency...<br>0:00:06.065338000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.076648000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.089410000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.098584000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.108688000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.119389000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.128777000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.139330000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.148774000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.815728476 deadline:0:00:00.815728476 earliest_time:0:00:02.851586332<br>0:00:06.158332000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.860587214 deadline:0:00:00.860587214 earliest_time:0:00:02.851586332<br>0:00:06.171233000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.860587214 deadline:0:00:00.860587214 earliest_time:0:00:02.851586332<br>0:00:06.180657000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.191433000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.200474000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.212016000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.221901000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.230630000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.242498000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.861461335 deadline:0:00:00.861461335 earliest_time:0:00:02.851586332<br>0:00:06.253069000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.901335156 deadline:0:00:00.901335156 earliest_time:0:00:02.851586332<br>0:00:06.262464000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.901335156 deadline:0:00:00.901335156 earliest_time:0:00:02.851586332<br>0:00:06.273579000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.901335156 deadline:0:00:00.901335156 earliest_time:0:00:02.851586332<br>0:00:06.284322000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.902224434 deadline:0:00:00.902224434 earliest_time:0:00:02.851586332<br>0:00:06.292843000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.902224434 deadline:0:00:00.902224434 earliest_time:0:00:02.851586332<br>0:00:06.302301000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.902224434 deadline:0:00:00.902224434 earliest_time:0:00:02.851586332<br>0:00:06.312188000 12448 000001B1409B3BC0 WARN videodecoder gstvideodecoder.c:3674:gst_video_decoder_clip_and_push_buf:<avdec_h264-0> Dropping frame due to QoS. start:0:00:00.902224434 deadline:0:00:00.902224434 earliest_time:0:00:02.851586332<br><p style="color:rgb(51,51,51);font-family:DIN-Web-Pro,Helvetica,Arial,sans-serif;font-size:15px;letter-spacing:0.15px"><br></p></div></div> </blockquote></div>