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[TOC]
# fuchsia.mediastreams
<div class="fidl-version-div"><span class="fidl-attribute fidl-version">Added: 7</span></div>
## **STRUCTS**
### AudioFormat {#AudioFormat data-text="AudioFormat"}
*Defined in [fuchsia.mediastreams/audio_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/audio_format.fidl;l=9)*
<p>Describes a format used for audio elementary streams without
reference to compression. Where compression is supported, this
type should be combined with a <code>Compression</code> struct.</p>
<table>
<tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
<tr id="AudioFormat.sample_format">
<td><code>sample_format</code></td>
<td>
<code><a class='link' href='#AudioSampleFormat'>AudioSampleFormat</a></code>
</td>
<td><p>The type of individual samples.</p>
</td>
<td>No default</td>
</tr>
<tr id="AudioFormat.channel_count">
<td><code>channel_count</code></td>
<td>
<code>uint32</code>
</td>
<td><p>The number of samples per frame.</p>
</td>
<td>No default</td>
</tr>
<tr id="AudioFormat.frames_per_second">
<td><code>frames_per_second</code></td>
<td>
<code>uint32</code>
</td>
<td><p>The number of frames per second.</p>
</td>
<td>No default</td>
</tr>
<tr id="AudioFormat.channel_layout">
<td><code>channel_layout</code></td>
<td>
<code><a class='link' href='#AudioChannelLayout'>AudioChannelLayout</a></code>
</td>
<td><p>The spatial assignment of each channel.</p>
</td>
<td>No default</td>
</tr>
</table>
### Compression {#Compression data-text="Compression"}
*Defined in [fuchsia.mediastreams/compression.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=10)*
<p>Describes the compression applied to a stream.</p>
<table>
<tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
<tr id="Compression.type">
<td><code>type</code></td>
<td>
<code><a class='link' href='#CompressionType'>CompressionType</a></code>
</td>
<td><p>The type of compression applied to the stream.</p>
</td>
<td>No default</td>
</tr>
<tr id="Compression.parameters">
<td><code>parameters</code></td>
<td>
<code>vector&lt;uint8&gt;?</code>
</td>
<td><p>Opaque ‘out-of-band’ parameters describing the compression
of the stream.</p>
</td>
<td>No default</td>
</tr>
</table>
### Encryption {#Encryption data-text="Encryption"}
*Defined in [fuchsia.mediastreams/encryption.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=34)*
<table>
<tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
<tr id="Encryption.scheme">
<td><code>scheme</code></td>
<td>
<code><a class='link' href='#EncryptionScheme'>EncryptionScheme</a></code>
</td>
<td></td>
<td>No default</td>
</tr>
<tr id="Encryption.default_key_id">
<td><code>default_key_id</code></td>
<td>
<code><a class='link' href='#EncryptionKeyId'>EncryptionKeyId</a></code>
</td>
<td></td>
<td>No default</td>
</tr>
<tr id="Encryption.default_init_vector">
<td><code>default_init_vector</code></td>
<td>
<code><a class='link' href='#EncryptionInitVector'>EncryptionInitVector</a></code>
</td>
<td></td>
<td>No default</td>
</tr>
<tr id="Encryption.default_pattern">
<td><code>default_pattern</code></td>
<td>
<code><a class='link' href='#EncryptionPattern'>EncryptionPattern</a>?</code>
</td>
<td></td>
<td>No default</td>
</tr>
</table>
### EncryptionPattern {#EncryptionPattern data-text="EncryptionPattern"}
*Defined in [fuchsia.mediastreams/encryption.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=29)*
<table>
<tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
<tr id="EncryptionPattern.clear_blocks">
<td><code>clear_blocks</code></td>
<td>
<code>uint32</code>
</td>
<td></td>
<td>No default</td>
</tr>
<tr id="EncryptionPattern.encrypted_blocks">
<td><code>encrypted_blocks</code></td>
<td>
<code>uint32</code>
</td>
<td></td>
<td>No default</td>
</tr>
</table>
### EncryptionSubsampleEntry {#EncryptionSubsampleEntry data-text="EncryptionSubsampleEntry"}
*Defined in [fuchsia.mediastreams/encryption.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=24)*
<table>
<tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
<tr id="EncryptionSubsampleEntry.clear_bytes">
<td><code>clear_bytes</code></td>
<td>
<code>uint32</code>
</td>
<td></td>
<td>No default</td>
</tr>
<tr id="EncryptionSubsampleEntry.encrypted_bytes">
<td><code>encrypted_bytes</code></td>
<td>
<code>uint32</code>
</td>
<td></td>
<td>No default</td>
</tr>
</table>
### VideoFormat {#VideoFormat data-text="VideoFormat"}
*Defined in [fuchsia.mediastreams/video_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/video_format.fidl;l=11)*
<p>Describes a format used for video elementary streams without
reference to compression. Where compression is supported, this
type should be combined with a <code>Compression</code> struct.</p>
<table>
<tr><th>Field</th><th>Type</th><th>Description</th><th>Default</th></tr>
<tr id="VideoFormat.pixel_format">
<td><code>pixel_format</code></td>
<td>
<code><a class='link' href='#PixelFormat'>PixelFormat</a></code>
</td>
<td><p>Describes the manner in which pixels are encoded.</p>
</td>
<td>No default</td>
</tr>
<tr id="VideoFormat.pixel_format_modifier">
<td><code>pixel_format_modifier</code></td>
<td>
<code>uint64</code>
</td>
<td><p>Vendor-specific pixel format modifier.</p>
</td>
<td>No default</td>
</tr>
<tr id="VideoFormat.color_space">
<td><code>color_space</code></td>
<td>
<code><a class='link' href='#ColorSpace'>ColorSpace</a></code>
</td>
<td><p>Indicates the color space used to interpret pixel values.</p>
</td>
<td>No default</td>
</tr>
<tr id="VideoFormat.coded_size">
<td><code>coded_size</code></td>
<td>
<code><a class='link' href='../fuchsia.math/'>fuchsia.math</a>/<a class='link' href='../fuchsia.math/#Size'>Size</a></code>
</td>
<td><p>The size of a frame in terms of the number of pixels that
are represented in a frame payload.</p>
</td>
<td>No default</td>
</tr>
<tr id="VideoFormat.display_size">
<td><code>display_size</code></td>
<td>
<code><a class='link' href='../fuchsia.math/'>fuchsia.math</a>/<a class='link' href='../fuchsia.math/#Size'>Size</a></code>
</td>
<td><p>The size of a frame in terms of the number of pixels that
should be displayed. These values will always be less than
or equal to the corresponding <code>coded_size</code> values.</p>
</td>
<td>No default</td>
</tr>
<tr id="VideoFormat.aspect_ratio">
<td><code>aspect_ratio</code></td>
<td>
<code><a class='link' href='../fuchsia.math/'>fuchsia.math</a>/<a class='link' href='../fuchsia.math/#Size'>Size</a>?</code>
</td>
<td><p>Aspect ratio of a single pixel as the video is intended to
be displayed.</p>
</td>
<td>No default</td>
</tr>
</table>
## **ENUMS**
### AudioSampleFormat [strict](/fuchsia-src/reference/fidl/language/language.md#strict-vs-flexible){:.fidl-attribute} {#AudioSampleFormat data-text="AudioSampleFormat"}
Type: <code>uint32</code>
*Defined in [fuchsia.mediastreams/audio_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/audio_format.fidl;l=27)*
<p>Expresses the format of individual audio samples.</p>
<table>
<tr><th>Name</th><th>Value</th><th>Description</th></tr>
<tr id="AudioSampleFormat.UNSIGNED_8">
<td><h3 id="AudioSampleFormat.UNSIGNED_8" class="add-link hide-from-toc">UNSIGNED_8</h3></td>
<td><code>1</code></td>
<td></td>
</tr>
<tr id="AudioSampleFormat.SIGNED_16">
<td><h3 id="AudioSampleFormat.SIGNED_16" class="add-link hide-from-toc">SIGNED_16</h3></td>
<td><code>2</code></td>
<td></td>
</tr>
<tr id="AudioSampleFormat.SIGNED_24_IN_32">
<td><h3 id="AudioSampleFormat.SIGNED_24_IN_32" class="add-link hide-from-toc">SIGNED_24_IN_32</h3></td>
<td><code>3</code></td>
<td></td>
</tr>
<tr id="AudioSampleFormat.SIGNED_32">
<td><h3 id="AudioSampleFormat.SIGNED_32" class="add-link hide-from-toc">SIGNED_32</h3></td>
<td><code>4</code></td>
<td></td>
</tr>
<tr id="AudioSampleFormat.FLOAT">
<td><h3 id="AudioSampleFormat.FLOAT" class="add-link hide-from-toc">FLOAT</h3></td>
<td><code>5</code></td>
<td></td>
</tr>
</table>
### ColorSpace [strict](/fuchsia-src/reference/fidl/language/language.md#strict-vs-flexible){:.fidl-attribute} {#ColorSpace data-text="ColorSpace"}
Type: <code>uint32</code>
*Defined in [fuchsia.mediastreams/video_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/video_format.fidl;l=60)*
<p>Expresses the color space used to interpret video pixel values.</p>
<table>
<tr><th>Name</th><th>Value</th><th>Description</th></tr>
<tr id="ColorSpace.INVALID">
<td><h3 id="ColorSpace.INVALID" class="add-link hide-from-toc">INVALID</h3></td>
<td><code>0</code></td>
<td></td>
</tr>
<tr id="ColorSpace.SRGB">
<td><h3 id="ColorSpace.SRGB" class="add-link hide-from-toc">SRGB</h3></td>
<td><code>1</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC601_NTSC">
<td><h3 id="ColorSpace.REC601_NTSC" class="add-link hide-from-toc">REC601_NTSC</h3></td>
<td><code>2</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC601_NTSC_FULL_RANGE">
<td><h3 id="ColorSpace.REC601_NTSC_FULL_RANGE" class="add-link hide-from-toc">REC601_NTSC_FULL_RANGE</h3></td>
<td><code>3</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC601_PAL">
<td><h3 id="ColorSpace.REC601_PAL" class="add-link hide-from-toc">REC601_PAL</h3></td>
<td><code>4</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC601_PAL_FULL_RANGE">
<td><h3 id="ColorSpace.REC601_PAL_FULL_RANGE" class="add-link hide-from-toc">REC601_PAL_FULL_RANGE</h3></td>
<td><code>5</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC709">
<td><h3 id="ColorSpace.REC709" class="add-link hide-from-toc">REC709</h3></td>
<td><code>6</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC2020">
<td><h3 id="ColorSpace.REC2020" class="add-link hide-from-toc">REC2020</h3></td>
<td><code>7</code></td>
<td></td>
</tr>
<tr id="ColorSpace.REC2100">
<td><h3 id="ColorSpace.REC2100" class="add-link hide-from-toc">REC2100</h3></td>
<td><code>8</code></td>
<td></td>
</tr>
</table>
### PixelFormat [strict](/fuchsia-src/reference/fidl/language/language.md#strict-vs-flexible){:.fidl-attribute} {#PixelFormat data-text="PixelFormat"}
Type: <code>uint32</code>
*Defined in [fuchsia.mediastreams/video_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/video_format.fidl;l=40)*
<p>Expresses the manner in which video pixels are encoded.</p>
<table>
<tr><th>Name</th><th>Value</th><th>Description</th></tr>
<tr id="PixelFormat.INVALID">
<td><h3 id="PixelFormat.INVALID" class="add-link hide-from-toc">INVALID</h3></td>
<td><code>0</code></td>
<td></td>
</tr>
<tr id="PixelFormat.R8G8B8A8">
<td><h3 id="PixelFormat.R8G8B8A8" class="add-link hide-from-toc">R8G8B8A8</h3></td>
<td><code>1</code></td>
<td></td>
</tr>
<tr id="PixelFormat.BGRA32">
<td><h3 id="PixelFormat.BGRA32" class="add-link hide-from-toc">BGRA32</h3></td>
<td><code>101</code></td>
<td></td>
</tr>
<tr id="PixelFormat.I420">
<td><h3 id="PixelFormat.I420" class="add-link hide-from-toc">I420</h3></td>
<td><code>102</code></td>
<td></td>
</tr>
<tr id="PixelFormat.M420">
<td><h3 id="PixelFormat.M420" class="add-link hide-from-toc">M420</h3></td>
<td><code>103</code></td>
<td></td>
</tr>
<tr id="PixelFormat.NV12">
<td><h3 id="PixelFormat.NV12" class="add-link hide-from-toc">NV12</h3></td>
<td><code>104</code></td>
<td></td>
</tr>
<tr id="PixelFormat.YUY2">
<td><h3 id="PixelFormat.YUY2" class="add-link hide-from-toc">YUY2</h3></td>
<td><code>105</code></td>
<td></td>
</tr>
<tr id="PixelFormat.MJPEG">
<td><h3 id="PixelFormat.MJPEG" class="add-link hide-from-toc">MJPEG</h3></td>
<td><code>106</code></td>
<td></td>
</tr>
<tr id="PixelFormat.YV12">
<td><h3 id="PixelFormat.YV12" class="add-link hide-from-toc">YV12</h3></td>
<td><code>107</code></td>
<td></td>
</tr>
<tr id="PixelFormat.BGR24">
<td><h3 id="PixelFormat.BGR24" class="add-link hide-from-toc">BGR24</h3></td>
<td><code>108</code></td>
<td></td>
</tr>
<tr id="PixelFormat.RGB565">
<td><h3 id="PixelFormat.RGB565" class="add-link hide-from-toc">RGB565</h3></td>
<td><code>109</code></td>
<td></td>
</tr>
<tr id="PixelFormat.RGB332">
<td><h3 id="PixelFormat.RGB332" class="add-link hide-from-toc">RGB332</h3></td>
<td><code>110</code></td>
<td></td>
</tr>
<tr id="PixelFormat.RGB2220">
<td><h3 id="PixelFormat.RGB2220" class="add-link hide-from-toc">RGB2220</h3></td>
<td><code>111</code></td>
<td></td>
</tr>
<tr id="PixelFormat.L8">
<td><h3 id="PixelFormat.L8" class="add-link hide-from-toc">L8</h3></td>
<td><code>112</code></td>
<td></td>
</tr>
<tr id="PixelFormat.R8">
<td><h3 id="PixelFormat.R8" class="add-link hide-from-toc">R8</h3></td>
<td><code>113</code></td>
<td></td>
</tr>
<tr id="PixelFormat.R8G8">
<td><h3 id="PixelFormat.R8G8" class="add-link hide-from-toc">R8G8</h3></td>
<td><code>114</code></td>
<td></td>
</tr>
</table>
## **UNIONS**
### AudioChannelLayout [strict](/fuchsia-src/reference/fidl/language/language.md#strict-vs-flexible){:.fidl-attribute} {#AudioChannelLayout data-text="AudioChannelLayout"}
*Defined in [fuchsia.mediastreams/audio_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/audio_format.fidl;l=35)*
<table>
<tr><th>Ordinal</th><th>Variant</th><th>Type</th><th>Description</th></tr>
<tr id="AudioChannelLayout.placeholder">
<td><h3 id="AudioChannelLayout.placeholder" class="add-link hide-from-toc">1</h3></td>
<td><code>placeholder</code></td>
<td>
<code>uint8</code>
</td>
<td></td>
</tr>
</table>
### MediaFormat [flexible](/fuchsia-src/reference/fidl/language/language.md#strict-vs-flexible){:.fidl-attribute} {#MediaFormat data-text="MediaFormat"}
*Defined in [fuchsia.mediastreams/media_format.fidl](https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/media_format.fidl;l=8)*
<p>Describes a format used for elementary streams</p>
<table>
<tr><th>Ordinal</th><th>Variant</th><th>Type</th><th>Description</th></tr>
<tr id="MediaFormat.audio">
<td><h3 id="MediaFormat.audio" class="add-link hide-from-toc">1</h3></td>
<td><code>audio</code></td>
<td>
<code><a class='link' href='#AudioFormat'>AudioFormat</a></code>
</td>
<td><p>Format for audio streams.</p>
</td>
</tr>
<tr id="MediaFormat.video">
<td><h3 id="MediaFormat.video" class="add-link hide-from-toc">2</h3></td>
<td><code>video</code></td>
<td>
<code><a class='link' href='#VideoFormat'>VideoFormat</a></code>
</td>
<td><p>Format for video streams.</p>
</td>
</tr>
</table>
## **CONSTANTS**
<table>
<tr><th>Name</th><th>Value</th><th>Type</th><th>Description</th></tr>
<tr id="AUDIO_COMPRESSION_AAC">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=20">AUDIO_COMPRESSION_AAC</a></td>
<td><code>fuchsia.streams.aac</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_AACLATM">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=21">AUDIO_COMPRESSION_AACLATM</a></td>
<td><code>fuchsia.streams.aaclatm</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_AMRNB">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=22">AUDIO_COMPRESSION_AMRNB</a></td>
<td><code>fuchsia.streams.amrnb</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_AMRWB">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=23">AUDIO_COMPRESSION_AMRWB</a></td>
<td><code>fuchsia.streams.amrwb</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_APTX">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=24">AUDIO_COMPRESSION_APTX</a></td>
<td><code>fuchsia.streams.aptx</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_FLAC">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=25">AUDIO_COMPRESSION_FLAC</a></td>
<td><code>fuchsia.streams.flac</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_GSMMS">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=26">AUDIO_COMPRESSION_GSMMS</a></td>
<td><code>fuchsia.streams.gsmms</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_MP3">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=27">AUDIO_COMPRESSION_MP3</a></td>
<td><code>fuchsia.streams.mp3</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_OPUS">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=32">AUDIO_COMPRESSION_OPUS</a></td>
<td><code>fuchsia.streams.opus</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_PCMALAW">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=28">AUDIO_COMPRESSION_PCMALAW</a></td>
<td><code>fuchsia.streams.pcmalaw</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_PCMMULAW">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=29">AUDIO_COMPRESSION_PCMMULAW</a></td>
<td><code>fuchsia.streams.pcmmulaw</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_SBC">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=30">AUDIO_COMPRESSION_SBC</a></td>
<td><code>fuchsia.streams.sbc</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="AUDIO_COMPRESSION_VORBIS">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=31">AUDIO_COMPRESSION_VORBIS</a></td>
<td><code>fuchsia.streams.vorbis</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="ENCRYPTION_SCHEME_CBC1">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=18">ENCRYPTION_SCHEME_CBC1</a></td>
<td><code>cbc1</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="ENCRYPTION_SCHEME_CBCS">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=20">ENCRYPTION_SCHEME_CBCS</a></td>
<td><code>cbcs</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="ENCRYPTION_SCHEME_CENC">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=17">ENCRYPTION_SCHEME_CENC</a></td>
<td><code>cenc</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="ENCRYPTION_SCHEME_CENS">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=19">ENCRYPTION_SCHEME_CENS</a></td>
<td><code>cens</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="MAX_ENCRYPTION_SCHEME_SIZE">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=7">MAX_ENCRYPTION_SCHEME_SIZE</a></td>
<td>
<code>4</code>
</td>
<td><code>int64</code></td>
<td><p>The maximum size of an <code>EncryptionScheme</code> string.</p>
</td>
</tr>
<tr id="MAX_INIT_VECTOR_SIZE">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=13">MAX_INIT_VECTOR_SIZE</a></td>
<td>
<code>16</code>
</td>
<td><code>int64</code></td>
<td><p>The maximum size of a <code>EncryptionInitVector</code> blob.</p>
</td>
</tr>
<tr id="MAX_KEY_ID_SIZE">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=10">MAX_KEY_ID_SIZE</a></td>
<td>
<code>16</code>
</td>
<td><code>int64</code></td>
<td><p>The maximum size of a <code>EncryptionKeyId</code> blob.</p>
</td>
</tr>
<tr id="VIDEO_COMPRESSION_H263">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=34">VIDEO_COMPRESSION_H263</a></td>
<td><code>fuchsia.streams.h263</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="VIDEO_COMPRESSION_H264">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=35">VIDEO_COMPRESSION_H264</a></td>
<td><code>fuchsia.streams.h264</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="VIDEO_COMPRESSION_MPEG4">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=36">VIDEO_COMPRESSION_MPEG4</a></td>
<td><code>fuchsia.streams.mpeg4</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="VIDEO_COMPRESSION_THEORA">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=37">VIDEO_COMPRESSION_THEORA</a></td>
<td><code>fuchsia.streams.theora</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="VIDEO_COMPRESSION_VP3">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=38">VIDEO_COMPRESSION_VP3</a></td>
<td><code>fuchsia.streams.vp3</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="VIDEO_COMPRESSION_VP8">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=39">VIDEO_COMPRESSION_VP8</a></td>
<td><code>fuchsia.streams.vp8</code></td>
<td><code>String</code></td>
<td></td>
</tr>
<tr id="VIDEO_COMPRESSION_VP9">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=40">VIDEO_COMPRESSION_VP9</a></td>
<td><code>fuchsia.streams.vp9</code></td>
<td><code>String</code></td>
<td></td>
</tr>
</table>
## **TYPE ALIASES**
<table>
<tr><th>Name</th><th>Value</th><th>Description</th></tr>
<tr id="CompressionType">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/compression.fidl;l=7">CompressionType</a></td>
<td>
<code>string</code>[<code>256</code>]</td>
<td><p>An identifier for compression types.</p>
</td>
</tr>
<tr id="EncryptionInitVector">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=22">EncryptionInitVector</a></td>
<td>
<code>vector</code>[<code><a class='link' href='#MAX_INIT_VECTOR_SIZE'>MAX_INIT_VECTOR_SIZE</a></code>]</td>
<td></td>
</tr>
<tr id="EncryptionKeyId">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=21">EncryptionKeyId</a></td>
<td>
<code>vector</code>[<code><a class='link' href='#MAX_KEY_ID_SIZE'>MAX_KEY_ID_SIZE</a></code>]</td>
<td></td>
</tr>
<tr id="EncryptionScheme">
<td><a href="https://cs.opensource.google/fuchsia/fuchsia/+/main:sdk/fidl/fuchsia.mediastreams/encryption.fidl;l=16">EncryptionScheme</a></td>
<td>
<code>string</code>[<code><a class='link' href='#MAX_ENCRYPTION_SCHEME_SIZE'>MAX_ENCRYPTION_SCHEME_SIZE</a></code>]</td>
<td><p>Identifies an encryption scheme.</p>
</td>
</tr>
</table>