From 83d3cd651051ee5f404e2531f92a73790b7de180 Mon Sep 17 00:00:00 2001
From: Ashley Blewer <ashley.blewer@gmail.com>
Date: Thu, 21 Jul 2016 16:58:59 -0400
Subject: [PATCH 1/3] adds idet filter for checking interlacement pattern
 status of video to preservation category

---
 index.html | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/index.html b/index.html
index e91d25d..cf7c747 100644
--- a/index.html
+++ b/index.html
@@ -634,6 +634,29 @@
   </div>
   <!-- ends Check FFV1 Fixity  -->
 
+  <!-- Check interlacement  -->
+  <span data-toggle="modal" data-target="#check_interlacement"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="This identifies interlacement patterns in a video file">Check interlacement </button></span>
+  <div id="check_interlacement" class="modal fade" tabindex="-1" role="dialog">
+    <div class="modal-dialog modal-lg">
+      <div class="modal-content">
+        <div class="well">
+          <h3>Check video file interlacement patterns</h3>
+          <p><code>ffmpeg -i <i>input file</i> -vf idet -f null -</code></p>
+          <p></p>
+          <dl>
+            <dt>ffmpeg</dt><dd>starts the command</dd>
+            <dt>-i <i>input_file</i></dt><dd>path, name and extension of the input file</dd>
+            <dt>-vf idet</dt><dd>This calls the <a href="http://www.tate.org.uk/research/publications/sustaining-consistent-video-presentation">idet (detect video interlacing type) filter</a>.</dd>
+            <dt>-f null</dt><dd>Video is decoded with the <code>null</code> muxer. This allows video decoding without creating an output file.</dd>
+            <dt>-</dt><dd>FFmpeg syntax requires a specified output, and <code>-</code> is just a place holder. No file is actually created. </dd>
+          </dl>
+          <p class="link"></p>
+        </div>
+      </div>
+    </div>
+  </div>
+  <!-- ends Check interlacement   -->
+
   </div>
 
   <div class="well">

From c3e33a3405accb7c428c30b3956518b1f146288b Mon Sep 17 00:00:00 2001
From: Ashley Blewer <ashley.blewer@gmail.com>
Date: Thu, 21 Jul 2016 17:16:38 -0400
Subject: [PATCH 2/3] links to idet filters and paper expanding subject

---
 index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.html b/index.html
index cf7c747..3bc2756 100644
--- a/index.html
+++ b/index.html
@@ -646,7 +646,7 @@
           <dl>
             <dt>ffmpeg</dt><dd>starts the command</dd>
             <dt>-i <i>input_file</i></dt><dd>path, name and extension of the input file</dd>
-            <dt>-vf idet</dt><dd>This calls the <a href="http://www.tate.org.uk/research/publications/sustaining-consistent-video-presentation">idet (detect video interlacing type) filter</a>.</dd>
+            <dt>-vf idet</dt><dd>This calls the  <a href="https://ffmpeg.org/ffmpeg-filters.html#idet">idet (detect video interlacing type) filter</a>.</dd>
             <dt>-f null</dt><dd>Video is decoded with the <code>null</code> muxer. This allows video decoding without creating an output file.</dd>
             <dt>-</dt><dd>FFmpeg syntax requires a specified output, and <code>-</code> is just a place holder. No file is actually created. </dd>
           </dl>

From 59523169239622ecc17cb26e01c685adc08f5b38 Mon Sep 17 00:00:00 2001
From: Ashley Blewer <ashley.blewer@gmail.com>
Date: Fri, 22 Jul 2016 03:15:39 -0400
Subject: [PATCH 3/3] uses verbose filter:v for new learners

---
 index.html | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/index.html b/index.html
index 3bc2756..9ed463d 100644
--- a/index.html
+++ b/index.html
@@ -641,12 +641,12 @@
       <div class="modal-content">
         <div class="well">
           <h3>Check video file interlacement patterns</h3>
-          <p><code>ffmpeg -i <i>input file</i> -vf idet -f null -</code></p>
+          <p><code>ffmpeg -i <i>input file</i> -filter:v idet -f null -</code></p>
           <p></p>
           <dl>
             <dt>ffmpeg</dt><dd>starts the command</dd>
             <dt>-i <i>input_file</i></dt><dd>path, name and extension of the input file</dd>
-            <dt>-vf idet</dt><dd>This calls the  <a href="https://ffmpeg.org/ffmpeg-filters.html#idet">idet (detect video interlacing type) filter</a>.</dd>
+            <dt>-filter:v idet</dt><dd>This calls the  <a href="https://ffmpeg.org/ffmpeg-filters.html#idet">idet (detect video interlacing type) filter</a>.</dd>
             <dt>-f null</dt><dd>Video is decoded with the <code>null</code> muxer. This allows video decoding without creating an output file.</dd>
             <dt>-</dt><dd>FFmpeg syntax requires a specified output, and <code>-</code> is just a place holder. No file is actually created. </dd>
           </dl>