mirror of
https://github.com/amiaopensource/ffmprovisr.git
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Reto Kromer
GitHub
commit
fa9f34e7f1
16
css/css.css
16
css/css.css
@ -2,6 +2,10 @@ h1,h2,h3,h4,h5,h6 {
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font-family: 'Montserrat', sans-serif;
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}
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code {
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word-break: break-all;
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}
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dd {
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padding-left:24px;
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}
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@ -10,6 +14,16 @@ dt {
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font-family: Menlo,Monaco,Consolas,"Courier New",monospace;
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}
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img {
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display: block;
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margin-left: auto;
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margin-right: auto;
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}
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.sample-image {
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margin-bottom: 18px;
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}
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h1 {
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letter-spacing:8px;
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font-size:86px;
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@ -56,4 +70,4 @@ div {
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.btn:hover:before, .btn:focus:before, .btn:active:before {
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-webkit-transform: scale(1.3) translateZ(0);
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transform: scale(1.3) translateZ(0);
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}
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}
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img/brng.gif
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img/brng.gif
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img/showspectrum.gif
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154
index.html
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index.html
@ -412,6 +412,160 @@
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</div>
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<!-- ends rip DVD -->
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</div>
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<div class="well">
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<h4>Filters</h4>
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<!-- astats -->
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<span data-toggle="modal" data-target="#astats"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Plays a graphical output showing decibel levels of an input file">Graphic for audio</button></span>
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<div id="astats" class="modal fade" tabindex="-1" role="dialog">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="well">
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<h3>Plays a graphical output showing decibel levels of an input file</h3>
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<p><code>ffplay -f lavfi "amovie='input.mp3',astats=metadata=1:reset=1,adrawgraph=lavfi.astats.Overall.Peak_level:max=0:min=-30.0:size=700x256:bg=Black[out]"</code></p>
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<dl>
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<dt>ffplay</dt><dd>starts the command</dd>
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<dt>-f lavfi</dt><dd>tells ffmpeg to use the Libavfilter input virtual device <a href="http://ffmpeg.org/ffmpeg-devices.html#lavfi" target="_blank">[more]</a></dd>
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<dt>"</dt><dd>quotation mark to start command</dd>
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<dt>movie='<i>input.mp3</i>'</dt><dd>declares audio source file on which to apply filter</dd>
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<dt>,</dt><dd>comma signifies the end of audio source section and the beginning of the filter section</dd>
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<dt>astats=metadata=1</dt><dd>tells the astats filter to ouput metadata that can be passed to another filter (in this case adrawgraph)</dd>
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<dt>:</dt><dd>divides beteen options of the same filter</dd>
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<dt>reset=1</dt><dd>tells the filter to calculate the stats on every frame (increasing this number would calculate stats for groups of frames)</dd>
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<dt>,</dt><dd>comma divides one filter in the chain from another</dd>
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<dt>adrawgraph=lavfi.astats.Overall.Peak_level:max=0:min=-30.0</dt><dd>draws a graph using the overall peak volume calculated by the astats filter. It sets the max for the graph to 0 (dB) and the minimum to -30 (dB). For more options on data points that can be graphed see <a href="https://ffmpeg.org/ffmpeg-filters.html#astats-1" target="_blank">[more]</a></dd>
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<dt>size=700x256:bg=Black</dt><dd>sets the background color and size of the output</dd>
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<dt>[out]</dt><dd>ends the filterchain and sets the output</dd>
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<dt>"</dt><dd>quotation mark to close command</dd>
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</dl>
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<div class="sample-image">
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<!-- <h4>Example of filter output</h4> -->
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<!-- <img src="" alt="astats example"> -->
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</div>
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<p class="link"></p>
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</div>
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</div>
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</div>
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</div>
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<!-- ends astats -->
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<!-- BRNG -->
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<span data-toggle="modal" data-target="#brng"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Identifies pixels out of broadcast range">Broadcast Range</button></span>
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<div id="brng" class="modal fade" tabindex="-1" role="dialog">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="well">
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<h3>Shows all pixels outside of broadcast range</h3>
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<p><code>ffplay -f lavfi "movie='<i>input.mp4</i>',signalstats=out=brng:color=cyan[out]"</code></p>
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<dl>
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<dt>ffplay</dt><dd>starts the command</dd>
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<dt>-f lavfi</dt><dd>tells ffmpeg to use the Libavfilter input virtual device <a href="http://ffmpeg.org/ffmpeg-devices.html#lavfi" target="_blank">[more]</a></dd>
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<dt>"</dt><dd>quotation mark to start command</dd>
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<dt>movie='<i>input.mp4</i>'</dt><dd>declares video file source to apply filter</dd>
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<dt>,</dt><dd>comma signifies closing of video source assertion and ready for filter assertion</dd>
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<dt>signalstats=out=brng:</dt><dd>tells ffplay to use the signalstats command, output the data, use the brng filter</dd>
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<dt>:</dt><dd>indicates there's another parameter coming</dd>
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<dt>color=cyan[out]</dt><dd>sets the color of out-of-range pixels to cyan</dd>
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<dt>"</dt><dd>quotation mark to close command</dd>
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</dl>
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<div class="sample-image">
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<h4>Example of filter output</h4>
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<img src="img/brng.gif" alt="BRNG example">
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</div>
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<p class="link"></p>
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</div>
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</div>
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</div>
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</div>
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<!-- ends BRNG -->
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<!-- ocr -->
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<span data-toggle="modal" data-target="#ocr_on_top"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Plays video with OCR on top">Shows OCR</button></span>
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<div id="ocr_on_top" class="modal fade" tabindex="-1" role="dialog">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="well">
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<h3>Plays video with OCR on top</h3>
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<p><code>ffplay input_file -vf "ocr,drawtext=fontfile=/Library/Fonts/Andale Mono.ttf:text=%{metadata\\\:lavfi.ocr.text}:fontcolor=white"</code></p>
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<dl>
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<dt>ffplay</dt><dd>starts the command</dd>
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<dt><i>input_file</i></dt><dd>path, name and extension of the input file</dd>
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<dt>-vf</dt><dd>-vf is an alias for -filter:v, which creates a filtergraph to use for the streams.</dd>
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<dt>"</dt><dd>quotation mark to start filter command</dd>
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<dt>ocr,</dt><dd>tells ffplay to use ocr as source and the comma signifies that the script is ready for filter assertion</dd>
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<dt>drawtext=fontfile=/Library/Fonts/Andale Mono.ttf</dt><dd>tells ffplay to drawtext and use a specific font (Andale Mono) when doing so</dd>
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<dt>:</dt><dd>indicates there's another parameter coming</dd>
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<dt>text=%{metadata\\\:lavfi.ocr.text}</dt><dd>tells ffplay what text to use when playing. In this case, calls for metadata that lives in the lavfi.ocr.text library</dd>
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<dt>:</dt><dd>indicates there's another parameter coming</dd>
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<dt>fontcolor=white</dt><dd>specifies font color as white</dd>
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<dt>"</dt><dd>quotation mark to close filter command</dd>
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</dl>
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<div class="sample-image">
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<!-- <h4>Example of filter output</h4> -->
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<!-- <img src="" alt="ocr example"> -->
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</div>
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<p class="link"></p>
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</div>
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</div>
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</div>
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</div>
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<!-- ends ocr -->
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<!-- Exports OCR -->
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<span data-toggle="modal" data-target="#ffprobe_ocr"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Exports OCR from video to screen">Exports OCR</button></span>
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<div id="ffprobe_ocr" class="modal fade" tabindex="-1" role="dialog">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="well">
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<h3>Exports OCR data to screen</h3>
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<p><code>ffprobe -show_entries frame_tags=lavfi.ocr.text -f lavfi -i "movie=<i>input_file</i>,ocr"</code></p>
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<dl>
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<dt>ffprobe</dt><dd>starts the command</dd>
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<dt>-show_entries</dt><dd>sets a list of entries to show</dd>
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<dt>frame_tags=lavfi.ocr.text</dt><dd>shows the <i>lavfi.ocr.text</i> tag in the frame section of the video</dd>
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<dt>-f lavfi</dt><dd>tells ffmpeg to use the Libavfilter input virtual device <a href="http://ffmpeg.org/ffmpeg-devices.html#lavfi" target="_blank">[more]</a></dd>
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<dt>-i "movie=<i>input_file</i>,ocr"</dt><dd>declares 'movie' as <i>input_file</i> and passes in the 'ocr' command</dd>
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</dl>
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<div class="sample-image">
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<!-- <h4>Example of filter output</h4> -->
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<!-- <img src="" alt="Exports OCR example"> -->
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</div>
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<p class="link"></p>
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</div>
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</div>
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</div>
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</div>
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<!-- ends Exports OCR -->
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<!-- Vectorscope -->
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<span data-toggle="modal" data-target="#vectorscope"><button type="button" class="btn btn-default" data-toggle="tooltip" data-placement="bottom" title="Vectorscope from video to screen">Vectorscope</button></span>
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<div id="vectorscope" class="modal fade" tabindex="-1" role="dialog">
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<div class="modal-dialog modal-lg">
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<div class="modal-content">
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<div class="well">
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<h3>Plays vectorscope of video</h3>
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<p><code>ffplay <i>input_file</i> -vf "split=2[m][v],[v]vectorscope=b=0.7:m=color3:g=green[v],[m][v]overlay=x=W-w:y=H-h"</code></p>
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<dl>
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<dt>ffplay</dt><dd>starts the command</dd>
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<dt><i>input_file</i></dt><dd>path, name and extension of the input file</dd>
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<dt>-vf</dt><dd>-vf is an alias for -filter:v, which creates a filtergraph to use for the streams.</dd>
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<dt>"</dt><dd>quotation mark to start command</dd>
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<dt>,</dt><dd>comma signifies there is another parameter coming</dd>
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<dt>split=2[m][v]</dt><dd>Splits the input into two identical outputs and names them [m] and [v]</dd>
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<dt>,</dt><dd>comma signifies there is another parameter coming</dd>
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<dt>[v]vectorscope=b=0.7:m=color3:g=green[v]</dt><dd>asserts usage of the vectorscope filter and sets a light background opacity (b, alias for bgopacity), sets a background color style (m, alias for mode), and graticule color (g, alias for graticule)</dd>
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<dt>,</dt><dd>comma signifies there is another parameter coming</dd>
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<dt>[m][v]overlay=x=W-w:y=H-h</dt><dd>declares where the vectorscope will overlay on top of the video image as it plays</dd>
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<dt>"</dt><dd>quotation mark to end command</dd>
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</dl>
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<p class="link"></p>
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</div>
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</div>
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</div>
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</div>
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<!-- ends Vectorscope -->
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</div>
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<div class="well">
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<h4>Make derivative variations</h4>
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Loading…
Reference in New Issue
Block a user