2016-12-08 22:58:08 +00:00
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# Raw Audio Media Types
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**audio/x-raw**
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2016-12-27 18:19:28 +00:00
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- **format**, `G_TYPE_STRING`: Mandatory. The format of the audio samples, see
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2016-12-08 22:58:08 +00:00
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the Formats section for a list of valid sample formats.
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2016-12-27 18:19:28 +00:00
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- **rate**, `G_TYPE_INT`: Mandatory. The samplerate of the audio
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2016-12-08 22:58:08 +00:00
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2016-12-27 18:19:28 +00:00
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- **channels**, `G_TYPE_INT`: Mandatory. The number of channels
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2016-12-27 18:19:28 +00:00
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- **channel-mask**, `GST_TYPE_BITMASK`: Mandatory for more than 2 channels
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2016-12-08 22:58:08 +00:00
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Bitmask of channel positions present. May be omitted for mono and
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stereo. May be set to 0 to denote that the channels are unpositioned.
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2016-12-27 18:19:28 +00:00
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- **layout**, `G_TYPE_STRING`: Mandatory. The layout of channels within a
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buffer. Possible values are "interleaved" (for LRLRLRLR) and
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"non-interleaved" (LLLLRRRR)
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Use `GstAudioInfo` and related helper API to create and parse raw audio caps.
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## Metadata
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2018-04-30 09:06:07 +00:00
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- `GstAudioMeta`: Metadata that describes the layout of the data inside
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the buffer. It is a requirement for buffers with non-interleaved layout
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to have this metadata attached.
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2016-12-08 22:58:08 +00:00
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- `GstAudioDownmixMeta`: A matrix for downmixing multichannel audio to a
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lower numer of channels.
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## Formats
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The following values can be used for the format string property.
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- "S8" 8-bit signed PCM audio
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- "U8" 8-bit unsigned PCM audio
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- "S16LE" 16-bit signed PCM audio
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- "S16BE" 16-bit signed PCM audio
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- "U16LE" 16-bit unsigned PCM audio
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- "U16BE" 16-bit unsigned PCM audio
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- "S24\_32LE" 24-bit signed PCM audio packed into 32-bit
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- "S24\_32BE" 24-bit signed PCM audio packed into 32-bit
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- "U24\_32LE" 24-bit unsigned PCM audio packed into 32-bit
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- "U24\_32BE" 24-bit unsigned PCM audio packed into 32-bit
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- "S32LE" 32-bit signed PCM audio
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- "S32BE" 32-bit signed PCM audio
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- "U32LE" 32-bit unsigned PCM audio
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- "U32BE" 32-bit unsigned PCM audio
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- "S24LE" 24-bit signed PCM audio
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- "S24BE" 24-bit signed PCM audio
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- "U24LE" 24-bit unsigned PCM audio
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- "U24BE" 24-bit unsigned PCM audio
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- "S20LE" 20-bit signed PCM audio
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- "S20BE" 20-bit signed PCM audio
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- "U20LE" 20-bit unsigned PCM audio
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- "U20BE" 20-bit unsigned PCM audio
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- "S18LE" 18-bit signed PCM audio
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- "S18BE" 18-bit signed PCM audio
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- "U18LE" 18-bit unsigned PCM audio
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- "U18BE" 18-bit unsigned PCM audio
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- "F32LE" 32-bit floating-point audio
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- "F32BE" 32-bit floating-point audio
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- "F64LE" 64-bit floating-point audio
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- "F64BE" 64-bit floating-point audio
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