unify syntax of recipe with syntax of the index

This commit is contained in:
Reto Kromer 2019-02-28 16:30:19 +01:00 committed by GitHub
parent 19e38145dd
commit 9df208345c
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23

View File

@ -623,7 +623,7 @@
<label class="recipe" for="change_DAR">Change display aspect ratio without re-encoding</label>
<input type="checkbox" id="change_DAR">
<div class="hiding">
<h3>Change Display Aspect Ratio without reencoding video</h3>
<h3>Change Display Aspect Ratio without re-encoding video</h3>
<p><code>ffmpeg -i <em>input_file</em> -c:v copy -aspect 4:3 <em>output_file</em></code></p>
<dl>
<dt>ffmpeg</dt><dd>starts the command</dd>
@ -680,7 +680,7 @@
<img src="./img/colourspace_metadata_mediainfo.png" alt="MediaInfo screenshots of colorspace metadata"><br>
<p><span class="beware"></span> Using this command it is possible to add Rec.709 tags to a file that is actually Rec.601 (etc), so apply with caution!</p>
<p>These commands are relevant for H.264 and H.265 videos, encoded with <code>libx264</code> and <code>libx265</code> respectively.</p>
<p><strong>Note:</strong> If you wish to embed colorspace metadata <em>without</em> changing to another colorspace, omit <code>-vf colormatrix=src:dst</code>. However, since it is <code>libx264</code>/<code>libx265</code> that writes the metadata, its not possible to add these tags without reencoding the video stream.</p>
<p><strong>Note:</strong> If you wish to embed colorspace metadata <em>without</em> changing to another colorspace, omit <code>-vf colormatrix=src:dst</code>. However, since it is <code>libx264</code>/<code>libx265</code> that writes the metadata, its not possible to add these tags without re-encoding the video stream.</p>
<p>For all possible values for <code>-color_primaries</code>, <code>-color_trc</code>, and <code>-colorspace</code>, see the FFmpeg documentation on <a href="https://ffmpeg.org/ffmpeg-codecs.html#Codec-Options" target="_blank">codec options</a>.</p>
<hr>
<p id="fn1" class="footnote">1. Out of step with the regular pattern, <code>-color_trc</code> doesnt accept <code>bt470bg</code>; it is instead here referred to directly as gamma.<br>
@ -2137,7 +2137,7 @@
<dl>
<dt>ffmpeg</dt><dd>starts the command</dd>
<dt>-f lavfi</dt><dd>tells FFmpeg to use the <a href="https://ffmpeg.org/ffmpeg-devices.html#lavfi" target="_blank">libavfilter</a> input virtual device</dd>
<dt>-i testsrc=size=720x576:rate=25</dt><dd>asks for the testsrc filter pattern as input. Adjusting the <code>size</code> and <code>rate</code> options allows you to choose a specific frame size and framerate. <br>
<dt>-i testsrc=size=720x576:rate=25</dt><dd>asks for the testsrc filter pattern as input. Adjusting the <code>size</code> and <code>rate</code> options allows you to choose a specific frame size and framerate.<br>
The different test patterns that can be generated are listed <a href="https://ffmpeg.org/ffmpeg-filters.html#allrgb_002c-allyuv_002c-color_002c-haldclutsrc_002c-nullsrc_002c-rgbtestsrc_002c-smptebars_002c-smptehdbars_002c-testsrc_002c-testsrc2_002c-yuvtestsrc" target="_blank">here</a>.</dd>
<dt>-c:v v210</dt><dd>transcodes video from rawvideo to 10-bit Uncompressed YC<sub>B</sub>C<sub>R</sub> 4:2:2. Alter this setting to set your desired codec.</dd>
<dt>-t 10</dt><dd>specifies recording time of 10 seconds</dd>