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<!DOCTYPE bugzilla SYSTEM "https://bugs.webkit.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.4.1"
          urlbase="https://bugs.webkit.org/"
          
          maintainer="admin@webkit.org"
>

    <bug>
          <bug_id>177550</bug_id>
          
          <creation_ts>2017-09-27 10:51:07 -0700</creation_ts>
          <short_desc>[GStreamer] Try to play AVC codec even if H.264 decoder only advertises byte-stream profile.</short_desc>
          <delta_ts>2017-10-02 06:17:46 -0700</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>1</classification_id>
          <classification>Unclassified</classification>
          <product>WebKit</product>
          <component>WebKitGTK</component>
          <version>WebKit Nightly Build</version>
          <rep_platform>Unspecified</rep_platform>
          <op_sys>Unspecified</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>FIXED</resolution>
          
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>P2</priority>
          <bug_severity>Normal</bug_severity>
          <target_milestone>---</target_milestone>
          
          
          <everconfirmed>1</everconfirmed>
          <reporter name="Charlie Turner">cturner</reporter>
          <assigned_to name="Charlie Turner">cturner</assigned_to>
          <cc>bugs-noreply</cc>
    
    <cc>clopez</cc>
    
    <cc>commit-queue</cc>
    
    <cc>eocanha</cc>
    
    <cc>eric.carlson</cc>
    
    <cc>jer.noble</cc>
    
    <cc>jonlee</cc>
    
    <cc>zan</cc>
          

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1353171</commentid>
    <comment_count>0</comment_count>
    <who name="Charlie Turner">cturner</who>
    <bug_when>2017-09-27 10:51:07 -0700</bug_when>
    <thetext>Try to play AVC codec even if H.264 decoder only advertises byte-stream profile.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1354156</commentid>
    <comment_count>1</comment_count>
    <who name="Jon Lee">jonlee</who>
    <bug_when>2017-09-28 10:08:00 -0700</bug_when>
    <thetext>Can you discuss a little bit more your use case?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1354315</commentid>
    <comment_count>2</comment_count>
    <who name="Charlie Turner">cturner</who>
    <bug_when>2017-09-28 14:58:52 -0700</bug_when>
    <thetext>It seems I&apos;ve accidentally pulled the trigger on uploading this patch before it&apos;s ready. This is specific to GTK/WPE, sorry for the false alarm.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1354322</commentid>
    <comment_count>3</comment_count>
      <attachid>322123</attachid>
    <who name="Charlie Turner">cturner</who>
    <bug_when>2017-09-28 15:06:21 -0700</bug_when>
    <thetext>Created attachment 322123
Patch</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1354484</commentid>
    <comment_count>4</comment_count>
    <who name="Enrique Ocaña">eocanha</who>
    <bug_when>2017-09-29 02:58:06 -0700</bug_when>
    <thetext>Looks good. I&apos;m assuming that playbin properly places an h264parse element to convert from avc to byte-stream, right?</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1354486</commentid>
    <comment_count>5</comment_count>
    <who name="Charlie Turner">cturner</who>
    <bug_when>2017-09-29 03:19:15 -0700</bug_when>
    <thetext>&gt; I&apos;m assuming that playbin properly places an h264parse element to convert from avc to byte-stream, right?

That&apos;s correct. The GstH264Parse element will be inserted by playbin when the H.264 decoder only advertises byte-stream.

While this isn&apos;t the case for a typical desktop GStreamer using libav, whose decoder supports both AVC and byte-stream. But on embedded systems like the Pi, the OpenMAX decoder only advertises byte-stream, and in this case the playbin will automatically convert it for us.

That&apos;s why we didn&apos;t notice any issues on desktop, because the filter did succeed, it&apos;s just not necessary with the ability of our pipeline to dynamically convert to bytestream if needed.</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1354602</commentid>
    <comment_count>6</comment_count>
      <attachid>322123</attachid>
    <who name="Carlos Alberto Lopez Perez">clopez</who>
    <bug_when>2017-09-29 10:57:05 -0700</bug_when>
    <thetext>Comment on attachment 322123
Patch

r=me if this looks good for Enrique :)</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1355186</commentid>
    <comment_count>7</comment_count>
      <attachid>322369</attachid>
    <who name="Charlie Turner">cturner</who>
    <bug_when>2017-10-02 03:49:25 -0700</bug_when>
    <thetext>Created attachment 322369
Patch for landing</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1355207</commentid>
    <comment_count>8</comment_count>
      <attachid>322369</attachid>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2017-10-02 06:17:45 -0700</bug_when>
    <thetext>Comment on attachment 322369
Patch for landing

Clearing flags on attachment: 322369

Committed r222707: &lt;http://trac.webkit.org/changeset/222707&gt;</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1355208</commentid>
    <comment_count>9</comment_count>
    <who name="WebKit Commit Bot">commit-queue</who>
    <bug_when>2017-10-02 06:17:46 -0700</bug_when>
    <thetext>All reviewed patches have been landed.  Closing bug.</thetext>
  </long_desc>
      
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            <date>2017-09-28 15:06:21 -0700</date>
            <delta_ts>2017-10-02 03:49:21 -0700</delta_ts>
            <desc>Patch</desc>
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            <date>2017-10-02 03:49:25 -0700</date>
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