<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 - HAP encode quality"
   href="https://bugzilla.libav.org/show_bug.cgi?id=1056">1056</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>HAP encode quality
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>git HEAD
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>Other
          </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>keith@corpimaging.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=666" name="attach_666" title="Notice the more substantial color banding in the area encoded with FFMPG">attachment 666</a> <a href="attachment.cgi?id=666&action=edit" title="Notice the more substantial color banding in the area encoded with FFMPG">[details]</a></span>
Notice the more substantial color banding in the area encoded with FFMPG

I am not sure you would call this a bug... but it certainly stops me from using
FFMPEG for HAP encoding - so I am hoping to get it solved.

I'm trying to understand why I am getting substantially worse results while
encoding to HAP using FFMPEG vs. Adobe Media Encoder. My problem is I need to
do Chuncks encoding (which cannot be set using AME) but the results from FFMPEG
are not up to quality.
See comparison results here:
<a href="https://www.dropbox.com/s/4fakivsytefl60c/HAP%20Test.tif?dl=1">https://www.dropbox.com/s/4fakivsytefl60c/HAP%20Test.tif?dl=1</a>

Here is my FF command line:
ffmpeg.exe -i "H:_Render\test.mov" -vcodec hap -format hap_q
"H:_Render\output.mov"

Here is the source file:
<a href="https://www.dropbox.com/s/ccf3g2rlm6fddwq/test%20hap%20encode.mov?dl=1">https://www.dropbox.com/s/ccf3g2rlm6fddwq/test%20hap%20encode.mov?dl=1</a>

AME is set to HAP Q, Quality=100, Render at Max Depth (not that any of those
settings makes a difference if my understanding is correct).
Any ideas on how I can get the matching quality from FFMPEG?

Thanks!
kt</pre>
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