<div dir="ltr"><div dir="ltr"><p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif"> </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">Hi,</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">Thanks for the response. </span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">With "conventional", I just meant ANY implementation which follows the guidelines specified as per the loudness
standard other than optimised Histogram method.</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">I am referring to ffmpeg\libavfilter\ebur128.c and ebur128.h
in the latest code from <a href="https://github.com/FFmpeg/FFmpeg" style="color:rgb(5,99,193)"><span style="color:windowtext">https://github.com/FFmpeg/FFmpeg</span></a>. Is there
any other implementation within FFmpeg being used by EBU R128 scanner
filter?</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">To me it looks like <a href="https://github.com/FFmpeg/FFmpeg/blob/master/libavfilter/ebur128.c" style="color:rgb(5,99,193)">https://github.com/FFmpeg/FFmpeg/blob/master/libavfilter/ebur128.c</a>
is derived from <a href="https://github.com/jiixyj/libebur128/blob/master/ebur128/ebur128.c" style="color:rgb(5,99,193)">https://github.com/jiixyj/libebur128/blob/master/ebur128/ebur128.c</a>.
Later one has an option to disable histogram method but not the version included
in FFmpeg.</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">I am just trying to find some documentation/reference illustrating
the details on histogram based implementation and some comparisons including
performance and output values.</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">Regards,</span></p>

<p class="MsoNormal" style="margin:0cm;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-family:"Calibri Light",sans-serif">Rohit </span></p></div><span id="gmail-:2am" class="gmail-J-J5-Ji" style="display:inline-flex;min-height:28px;vertical-align:bottom;font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:22px"><div class="gmail-pG" aria-label="Important according to Google magic." role="img" id="gmail-:2aj" style="font-size:0px;padding:0px;width:20px;height:20px;display:inline-block;margin:0px 8px 0px 0px"><br class="gmail-Apple-interchange-newline"></div></span><div> </div><div><br></div><br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br><br>
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