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<h3><a href="../index.html">Table Of Contents</a></h3>
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<li><a class="reference internal" href="#">Basic Usage</a><ul>
<li><a class="reference internal" href="#getting-help">Getting help</a></li>
<li><a class="reference internal" href="#media-file-analysis">Media file analysis</a></li>
<li><a class="reference internal" href="#basic-transmuxing">Basic transmuxing</a></li>
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<div class="section" id="basic-usage">
<span id="basic-usage"></span><h1>Basic Usage<a class="headerlink" href="#basic-usage" title="Permalink to this headline"></a></h1>
<div class="section" id="getting-help">
<span id="getting-help"></span><h2>Getting help<a class="headerlink" href="#getting-help" title="Permalink to this headline"></a></h2>
<div class="highlight-shell"><div class="highlight"><pre><span></span>$ packager --help
</pre></div>
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<div class="section" id="media-file-analysis">
<span id="media-file-analysis"></span><h2>Media file analysis<a class="headerlink" href="#media-file-analysis" title="Permalink to this headline"></a></h2>
<p>Shaka Packager can be used to inspect the content of a media file and dump basic
stream information.</p>
<div class="highlight-shell"><div class="highlight"><pre><span></span>$ packager <span class="nv">input</span><span class="o">=</span>some_content.mp4 --dump_stream_info
</pre></div>
</div>
<p>The output looks like:</p>
<div class="highlight-shell"><div class="highlight"><pre><span></span>File <span class="s2">&quot;some_content.mp4&quot;</span>:
Found <span class="m">2</span> stream<span class="o">(</span>s<span class="o">)</span>.
Stream <span class="o">[</span><span class="m">0</span><span class="o">]</span> type: Video
codec_string: avc1.4d001e
time_scale: <span class="m">24000</span>
duration: <span class="m">3002000</span> <span class="o">(</span><span class="m">125</span>.1 seconds<span class="o">)</span>
is_encrypted: <span class="nb">false</span>
codec: H264
width: <span class="m">720</span>
height: <span class="m">360</span>
pixel_aspect_ratio: <span class="m">8</span>:9
trick_play_factor: <span class="m">0</span>
nalu_length_size: <span class="m">4</span>
Stream <span class="o">[</span><span class="m">1</span><span class="o">]</span> type: Audio
codec_string: mp4a.40.2
time_scale: <span class="m">44100</span>
duration: <span class="m">5517311</span> <span class="o">(</span><span class="m">125</span>.1 seconds<span class="o">)</span>
is_encrypted: <span class="nb">false</span>
codec: AAC
sample_bits: <span class="m">16</span>
num_channels: <span class="m">2</span>
sampling_frequency: <span class="m">44100</span>
language: eng
</pre></div>
</div>
</div>
<div class="section" id="basic-transmuxing">
<span id="basic-transmuxing"></span><h2>Basic transmuxing<a class="headerlink" href="#basic-transmuxing" title="Permalink to this headline"></a></h2>
<p>Shaka Packager can be used to extract streams, optionally transmuxes the streams
from one container format to another container format.</p>
<p>Here is a simple command that extracts video and audio from the input file:</p>
<div class="highlight-shell"><div class="highlight"><pre><span></span>$ packager <span class="nv">in</span><span class="o">=</span>some_content.mp4,stream<span class="o">=</span>video,out<span class="o">=</span>video.mp4 <span class="se">\</span>
<span class="nv">in</span><span class="o">=</span>some_content.mp4,stream<span class="o">=</span>audio,out<span class="o">=</span>audio.mp4
</pre></div>
</div>
<p>Shaka Packager is also capable of more complex tasks, such as applying
encryption, packaging contents to DASH or HLS formats, etc. Refer
:doc:<code class="docutils literal"><span class="pre">tutorials</span></code>.</p>
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