<div dir="ltr"><div>thank you. the problem was simply with Vlc playback. <br>with other players we don't have any issues (mediaPLayer classic or ffplay). <br>i can mark this as closed. <br><br>thank you ,<br><br></div>giacomo<br></div><div class="gmail_extra"><br><div class="gmail_quote">2015-05-18 20:56 GMT+02:00 Marcin <span dir="ltr"><<a href="mailto:marcin@speed666.info" target="_blank">marcin@speed666.info</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
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    <div>For me the problem is that you need to
      start recording on an I-Frame first. I deal with that by skipping
      NAL units that doesnt start with a keyframe. Otherwise you get
      trash at the beggining.<br>
      Marcin<br>
      <br>
      W dniu 2015-05-18 o 12:28, Giacomo Parmigiani pisze:<br>
    </div>
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              <div>
                <div>
                  <div>Hello,<br>
                    <br>
                  </div>
                  we have an ip-camera streaming via rtsp (h264/AVC) at
                  5 fps in hd resolution,<br>
                </div>
                we're trying to record .mp4 file with openrtsp. Recorded
                stream looks like beeing freezed at the first received
                frame, though Vlc and ffplay can playback with no issues
                the stream (in vlc by the way it was necessary to
                provide a bigger inbound cache from the original 333
                ms).<br>
                the recording works flawlessly with cameras with higher
                framerates, but we have problems when facing low
                framerate. What could be the problem?<br>
                <br>
              </div>
              <div><br>
                here's our openRtsp calling arguments (to record every
                minute with .mp4 format):<br>
                <br>
                -4 -F rec -n -P 60 -f 5 -b 250000 -D 10 rtsp://<a href="http://192.168.30.160" target="_blank">192.168.30.160</a><br>
              </div>
              <div><br>
              </div>
              <br>
              <br>
            </div>
            <div>i tryed increasing the network buffer cache but doesn't
              seem to target our problem.<br>
            </div>
            <div>i tryed  -B 250000 along with previous options, with no
              success. <br>
              <br>
              <br>
            </div>
            <div>Hope you can help us,<br>
            </div>
            Thank you so much,<br>
            <br>
            <br>
            <br>
          </div>
          Giacomo Parmigiani<br>
        </div>
        <div>
          <p class="MsoNormal">LOGITAL  srl</p>
        </div>
        <div>
          <p class="MsoNormal">via Palazzetti 5/F</p>
        </div>
        <div>
          <p class="MsoNormal">40138 San Lazzaro di Savena (BO)</p>
        </div>
        <div>
          <p class="MsoNormal">ITALY</p>
        </div>
        <p class="MsoNormal">Tel. <a href="tel:%2B39%20051%2019983700" target="_blank">+39 051
            19983700</a></p>
        <br>
      </div>
      <br>
      <fieldset></fieldset>
      <br>
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    <br>
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