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      <base href="https://bugzilla.libav.org/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - FFV1 encodes RGB in a way that it can't decode"
   href="https://bugzilla.libav.org/show_bug.cgi?id=1130">1130</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>FFV1 encodes RGB in a way that it can't decode
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>12
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>X86
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Windows
          </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>marklam@spunow.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>8-bit RGB is only accepted as RGB32 by the FFV1 encoder.

The context is then set up as colorspace=1, transparency=1
<a href="https://git.libav.org/?p=libav.git;a=blob;f=libavcodec/ffv1enc.c;h=c5088bb545f55804ca4a4b2896328f9a11a12fb3;hb=HEAD#l637">https://git.libav.org/?p=libav.git;a=blob;f=libavcodec/ffv1enc.c;h=c5088bb545f55804ca4a4b2896328f9a11a12fb3;hb=HEAD#l637</a>

The decoder refuses to decode this configuration
<a href="https://git.libav.org/?p=libav.git;a=blob;f=libavcodec/ffv1dec.c;h=07e66b9dbbea498d2e94a9c7676abc6467b501a2;hb=HEAD#l701">https://git.libav.org/?p=libav.git;a=blob;f=libavcodec/ffv1dec.c;h=07e66b9dbbea498d2e94a9c7676abc6467b501a2;hb=HEAD#l701</a>

I can't see any way to encode RGB data without hitting this combination of
colorspace and transparency.</pre>
        </div>
      </p>
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