<html>
    <head>
      <base href="https://bugzilla.libav.org/" />
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - AVDISCARD_NONKEY does not work correctly for H264 decoder"
   href="https://bugzilla.libav.org/show_bug.cgi?id=870">870</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>AVDISCARD_NONKEY does not work correctly for H264 decoder
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>Libav
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>11
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>---
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>libavcodec
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>bugzilla@libav.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>t.i.m@zen.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Key-frame only playback does not seem to work properly with the H264 decoder. I
did not test other decoders, so I don't know if it's decoder-specific or a
general problem.

Symptom with GStreamer git master using libav 11.4: when AVDISCARD_NONKEY is
specified, keyframes are decoded properly, and for all non-keyframes a gray
frame is returned. I would expect no frame to be returned in that case.

This might be the same issue as <a href="https://trac.ffmpeg.org/ticket/3475">https://trac.ffmpeg.org/ticket/3475</a></pre>
        </div>
      </p>
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