topic h264 video tearing in Intel® Integrated Performance Primitives https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763907#M71 We are decoding a stream comming from an IP camera. The video is 25fps and 1920x1080 (6000Kbps). <SPAN style="font-family: verdana, sans-serif;">We can decode and display the video correctly but sometimes the video shows tearing (see image attached). The tearing also seems to be directly related to the complexity of the image.</SPAN><DIV><SPAN style="font-family: verdana, sans-serif;"></SPAN><BR /><DIV>Currently we useIPP 6.0.2.074 but tests with IPP7.0.3.050 shows the same problem.</DIV><DIV></DIV><DIV>What could be the cause of video tearing?</DIV><DIV></DIV><DIV>(Send data to the decoder too fast/slow? Memory corruption between decode/draw?)</DIV><DIV></DIV><DIV>Thanks in advance.</DIV></DIV><DIV></DIV> Wed, 13 Apr 2011 12:53:05 GMT fjfeijoo 2011-04-13T12:53:05Z h264 video tearing https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763907#M71 We are decoding a stream comming from an IP camera. The video is 25fps and 1920x1080 (6000Kbps). <SPAN style="font-family: verdana, sans-serif;">We can decode and display the video correctly but sometimes the video shows tearing (see image attached). The tearing also seems to be directly related to the complexity of the image.</SPAN><DIV><SPAN style="font-family: verdana, sans-serif;"></SPAN><BR /><DIV>Currently we useIPP 6.0.2.074 but tests with IPP7.0.3.050 shows the same problem.</DIV><DIV></DIV><DIV>What could be the cause of video tearing?</DIV><DIV></DIV><DIV>(Send data to the decoder too fast/slow? Memory corruption between decode/draw?)</DIV><DIV></DIV><DIV>Thanks in advance.</DIV></DIV><DIV></DIV> Wed, 13 Apr 2011 12:53:05 GMT https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763907#M71 fjfeijoo 2011-04-13T12:53:05Z h264 video tearing https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763908#M72 It looks like bit-errors in encoded bitstream from camera. Could you please send us problem stream for deep analysis?<BR /><BR />Regards,<BR /> Vladimir Thu, 14 Apr 2011 06:35:33 GMT https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763908#M72 Vladimir_Dudnik 2011-04-14T06:35:33Z h264 video tearing https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763909#M73 <BR /><BR /><P>Hi, </P><P>I tried to combile all data for each frame into one file, and it could not be decoded. </P><P>What is the format of the video stream? Do you have any raw H.264 file to have a test? </P><P>Thanks,<BR />Chao </P> Fri, 15 Apr 2011 07:40:24 GMT https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763909#M73 Chao_Y_Intel 2011-04-15T07:40:24Z h264 video tearing https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763910#M74 <DIV id="_mcePaste">Hello,</DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste">thanks for the stream. It looks the bit stream contains some error bit stream.</DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste">when I played it with FFMPEG, I also saw the following error report:</DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste">&gt;ffmpeg.exe -i raw_stream.h264 out.yuv</DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">[h264 @ 0107BC10]number of reference frames exceeds max (probably corrupt input)</DIV><DIV id="_mcePaste">, discarding one</DIV><DIV id="_mcePaste">^Came= 215 fps= 8 q=0.0 size= 653062kB time=8.60 bitrate=622080.0kbits/s</DIV><DIV id="_mcePaste">....</DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste">Thanks,</DIV><DIV id="_mcePaste">Chao</DIV> Fri, 22 Apr 2011 06:12:12 GMT https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763910#M74 Chao_Y_Intel 2011-04-22T06:12:12Z h264 video tearing https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763911#M75 Hello Chao,<DIV></DIV><DIV>thanks for the response.</DIV><DIV></DIV><DIV>I have been doing tests with different cameras and h264 streams but all of them show errors when using ffmpeg and ffplay. So, are all of them wrong? VLC (using avcodec internally) is able to reproduce all this streams without problems showing smooth video.</DIV><DIV></DIV><DIV>To avoid errors in my side I have also used ffplay directly using an rtsp input with same results:</DIV><DIV></DIV><DIV>c:\test&gt;ffplay.exe -i rtsp://192.168.1.33/ch0_unicast_firststream -loglevel debug</DIV><DIV></DIV><DIV>Is there a similar tool like ffmpeg/ffplay using intel codecs?</DIV><DIV></DIV><DIV></DIV><DIV>Thanks in advance.</DIV> Fri, 29 Apr 2011 11:33:28 GMT https://community.intel.com/t5/Intel-Integrated-Performance/h264-video-tearing/m-p/763911#M75 fjfeijoo 2011-04-29T11:33:28Z