title: H.264 decoding error log from RTSP stream
body: <p>I am getting the following H264 error log. This log comes while decoding an RTSP video stream with help of FFMPEG. The picture displayed is blurred after 5/6 seconds. The picture would recover it from time to time. However,  it remains blurred for most of the time. </p>
  
  <p>EDIT: Some FFMPEG discussion forums suggested to upgrade FFMPEG version to avoid these logs. I have updated the latest FFMPEG build of June 19, 2015.Still the log remains there and picture is still blurred.</p>
  
  <p>EDIT 2: The RTSP stream is coming from a GANZ camera. This camera is connected through a LAN connection.</p>
  
  <pre><code>[h264 @ 0abb2aa0] Cannot use next picture in error concealment
  [h264 @ 0abb2aa0] concealing 1933 DC, 1933 AC, 1933 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 131 packets
  [h264 @ 0abb3300] error while decoding MB 66 25, bytestream (-9)
  [h264 @ 0abb3300] Cannot use next picture in error concealment
  [h264 @ 0abb3300] concealing 1583 DC, 1583 AC, 1583 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 8 packets
  [h264 @ 0b113e40] error while decoding MB 54 30, bytestream (-11)
  [h264 @ 0b113e40] Cannot use next picture in error concealment
  [h264 @ 0b113e40] concealing 1195 DC, 1195 AC, 1195 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 118 packets
  [h264 @ 0ac79960] error while decoding MB 13 20, bytestream (-13)
  [h264 @ 0ac79960] Cannot use next picture in error concealment
  [h264 @ 0ac79960] concealing 2036 DC, 2036 AC, 2036 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 198 packets
  [h264 @ 0ad4f500] error while decoding MB 21 9, bytestream (-5)
  [h264 @ 0ad4f500] Cannot use next picture in error concealment
  [h264 @ 0ad4f500] concealing 2908 DC, 2908 AC, 2908 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 108 packets
  [h264 @ 0abb3300] error while decoding MB 1 14, bytestream (-5)
  [h264 @ 0abb3300] Cannot use next picture in error concealment
  [h264 @ 0abb3300] concealing 2528 DC, 2528 AC, 2528 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 106 packets
  [h264 @ 0b1149c0] error while decoding MB 12 5, bytestream (-7)
  [h264 @ 0b1149c0] Cannot use next picture in error concealment
  [h264 @ 0b1149c0] concealing 3237 DC, 3237 AC, 3237 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed -65402 packets
  [h264 @ 0b1155a0] error while decoding MB 50 38, bytestream (-7)
  [h264 @ 0b1155a0] Cannot use next picture in error concealment
  [h264 @ 0b1155a0] concealing 559 DC, 559 AC, 559 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 150 packets
  [h264 @ 0af65740] error while decoding MB 48 31, bytestream (-15)
  [h264 @ 0af65740] Cannot use next picture in error concealment
  [h264 @ 0af65740] concealing 1121 DC, 1121 AC, 1121 MV errors in P frame
  [h264 @ 098e5c80] RTP: missed 4 packets
  [h264 @ 0ac79960] error while decoding MB 35 38, bytestream (-41)
  [h264 @ 0ac79960] Cannot use next picture in error concealment
  [h264 @ 0ac79960] concealing 574 DC, 574 AC, 574 MV errors in P frame
  </code></pre>
  
  <p>I dumped the RTSP stream to an avi file using ffmpeg and there are no errors.
  C:\Users\Matlab>ffmpeg -i rtsp://192.168.1.67/gnz_media/main 123.avi</p>
  
  <p>There are no H.264 decoding errors. Can anybody help with above decoding errors using ffmpeg api.</p>