docs/reference/tools/hardware/audio-codec-ctl.md - fuchsia - Git at Google

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 # audio-codec-ctl

 Audio hardware codec driver control. Used to control and get information from an audio hardware
 codec driver via the FIDL codec interface.
 See [`audio-driver-ctl`](/docs/reference/tools/hardware/audio-driver-ctl.md)
 to play, record, and configure audio streams.

 ## Usage {#usage}

 ```none
   audio-codec-ctl [-d|--device <device>] f[ormats]

   audio-codec-ctl [-d|--device <device>] b[ridgeable]

   audio-codec-ctl [-d|--device <device>] r[eset]

   audio-codec-ctl [-d|--device <device>] m[ode_bridged] true|false

   audio-codec-ctl [-d|--device <device>] d[ai] <number_of_channels>
     <channels_to_use_bitmask> pdm|upcm|spcm|fpcm none|i2s|left-stereo|right-stereo|1tdm|2tdm|3tdm
     <frame_rate> <bits_per_slot> <bits_per_sample>

   audio-codec-ctl [-d|--device <device>] start

   audio-codec-ctl [-d|--device <device>] stop

   audio-codec-ctl [-d|--device <device>] p[lug_state]

   audio-codec-ctl [-d|--device <device>] e[elements]

   audio-codec-ctl [-d|--device <device>] t[opologies]

   audio-codec-ctl [-d|--device <device>] w[atch] <id>

   audio-codec-ctl [-d|--device <device>] set <id> [enable|disable] [gain <gain>] [latency <nsecs>]
     [vendor <hex> <hex> ...]

   audio-codec-ctl [-h|--help]
 ```

 ## Commands {#commands}

 Audio hardware codec driver control on `<device>` (full path specified e.g. `/dev/class/codec/123` or
 only the devfs node name specified e.g. `123`) or unspecified (picks the first device in
 /dev/class/codec). Only one command can be specified per invocation.


 ### `formats` {#formats}

 ```none
   audio-codec-ctl [-d|--device <device>] f[ormats]
 ```

 Retrieves the DAI formats supported by the codec.

 ### `info` {#info}

 ```none
   audio-codec-ctl [-d|--device <device>] i[nfo]
 ```

 Retrieves textual information about the codec.

 ### `capabilities_plug_detect` {#plugdetect}

 ```none
   audio-codec-ctl [-d|--device <device>] c[apabilities_plug_detect]
 ```

 Retrieves Plug Detect Capabilities.

 ### `bridgeable` {#bridgeable}

 ```none
   audio-codec-ctl [-d|--device <device>] b[ridgeable]
 ```

 Returns whether a codec is bridgeable.

 ### `reset` {#reset}

 ```none
   audio-codec-ctl [-d|--device <device>] r[eset]
 ```

 Resets the codec.

 ### `mode_bridged` {#bridged}

 ```none
   audio-codec-ctl [-d|--device <device>] m[ode_bridged] true|false
 ```

 Sets a codec bridged mode to true or false.

 ### `dai` {#dai}

 ```none
   audio-codec-ctl [-d|--device <device>] d[ai] <number_of_channels>
     <channels_to_use_bitmask> pdm|upcm|spcm|fpcm none|i2s|left-stereo|right-stereo|1tdm|2tdm|3tdm
     <frame_rate> <bits_per_slot> <bits_per_sample>
 ```

 Sets the DAI format to be used in the codec interface.

 `<number_of_channels>`: Number of channels.

 `<channels_to_use_bitmask>`: Sets which channels are active via a bitmask. The least significant
   bit corresponds to channel index 0.

 `pdm`: Pulse Density Modulation samples.

 `upcm`: Signed Linear Pulse Code Modulation samples at the host endianness.

 `spcm`: Unsigned Linear Pulse Code Modulation samples at the host endianness.

 `fpcm`: Floating point samples IEEE-754 encoded.

 `none`: No frame format as in samples without a frame sync like PDM.

 `i2s`: Format as specified in the I2S specification.

 `left-stereo`: Left justified, 2 channels.

 `right-stereo`: Right justified, 2 channels.

 `1tdm`: Left justified, variable number of channels, data starts at frame sync changes from low to
   high clocked out at the rising edge of sclk. The frame sync must stay high for exactly 1
   clock cycle.

 `2tdm`: Left justified, variable number of channels, data starts one clock cycle after the frame
   sync changes from low to high clocked out at the rising edge of sclk. The frame sync must
   stay high for exactly 1 clock cycle.

 `3tdm`: Left justified, variable number of channels, data starts two clock cycles after the frame
   sync changes from low to high clocked out at the rising edge of sclk. The frame sync must
   stay high for exactly 1 clock cycle.

 `<frame_rate>`: The frame rate for all samples.

 `<bits_per_slot>`: The bits per slot for all channels.

 `<bits_per_sample>`: The bits per sample for all samples.  Must be smaller than bits per channel
   for samples to fit.

 ### `start` {#start}

 ```none
   audio-codec-ctl [-d|--device <device>] start
 ```

 Start/Re-start the codec operation.

 ### `stop` {#stop}

 ```none
   audio-codec-ctl [-d|--device <device>] stop
 ```

 Stops the codec operation.

 ### `plug_state` {#plug}

 ```none
   audio-codec-ctl [-d|--device <device>] p[lug_state]
 ```

 Get the plug detect state.

 ### `elements` {#elements}

 ```none
   audio-codec-ctl [-d|--device <device>] e[lements]
 ```

 Returns a vector of supported processing elements.

 ### `topologies` {#topologies}

 ```none
   audio-codec-ctl [-d|--device <device>] t[opologies]
 ```

 Returns a vector of supported topologies.

 ### `watch` {#watch}

 ```none
   audio-codec-ctl [-d|--device <device>] w[atch] <id>
 ```

 Get a processing element state.

 ### `set` {#set}

 ```none
   audio-codec-ctl [-d|--device <device>] set <id> [enable|disable] [gain <gain>] [latency <nsecs>]
     [vendor <hex> <hex> ...]
 ```

 Controls a processing element.

 `<id>`: Processing element id.

 `enable`: Process element enabled state.

 `disable`: Process element disabled state.

 `<gain>`: Current gain in GainType format reported in the supported processing elements vector.

 `<nsecs>`: Latency added to the pipeline in nanoseconds.

 `<hex>`: Vendor specific raw byte to feed to the processing element in hex format.

 ## Examples {#examples}

 ### Retrieves the DAI formats supported

 ```none
 $ audio-codec-ctl f
 Executing on device: /dev/class/codec/706
 [ fuchsia_hardware_audio::DaiSupportedFormats{ number_of_channels = [ 2, 4, ], sample_formats = [ fuchsia_hardware_audio::DaiSampleFormat::kPcmSigned, ], frame_formats = [ fuchsia_hardware_audio::DaiFrameFormat::frame_format_standard(fuchsia_hardware_audio::DaiFrameFormatStandard::kI2S), fuchsia_hardware_audio::DaiFrameFormat::frame_format_standard(fuchsia_hardware_audio::DaiFrameFormatStandard::kTdm1), ], frame_rates = [ 48000, 96000, ], bits_per_slot = [ 16, 32, ], bits_per_sample = [ 16, 32, ], }, ]
 ```

 ### Retrieves textual information

 ```none
 $ audio-codec-ctl i
 Executing on device: /dev/class/codec/706
 fuchsia_hardware_audio::CodecInfo{ unique_id = "", manufacturer = "Texas Instruments", product_name = "TAS5825m", }
 ```

 ### Retrieves Plug Detect Capabilities

 ```none
 $ audio-codec-ctl c
 Executing on device: /dev/class/codec/706
 fuchsia_hardware_audio::PlugDetectCapabilities::kHardwired
 ```

 ### Returns whether the codec is bridgeable

 ```none
 $ audio-codec-ctl b
 Executing on device: /dev/class/codec/706
 Is bridgeable: false
 ```

 ### Resets the codec

 ```none
 $ audio-codec-ctl r
 Executing on device: /dev/class/codec/706
 Reset done
 ```

 ### Sets a codec's bridged mode

 ```none
 $ audio-codec-ctl -m true
 Setting bridged mode to: true
 Executing on device: /dev/class/codec/706
 ```

 ### Sets the DAI format to be used in the codec interface

 ```none
 $ audio-codec-ctl d 2 1 s i 48000 16 32
 Setting DAI format:
 fuchsia_hardware_audio::DaiFormat{ number_of_channels = 2, channels_to_use_bitmask = 1, sample_format = fuchsia_hardware_audio::DaiSampleFormat::kPcmSigned, frame_format = fuchsia_hardware_audio::DaiFrameFormat::frame_format_standard(fuchsia_hardware_audio::DaiFrameFormatStandard::kI2S), frame_rate = 48000, bits_per_slot = 16, bits_per_sample = 32, }
 Executing on device: /dev/class/codec/706
 ```

 ### Start/Re-start the codec operation

 ```none
 $ audio-codec-ctl start
 Executing on device: /dev/class/codec/706
 Start done
 ```

 ### Stops the codec operation

 ```none
 $ audio-codec-ctl stop
 Executing on device: /dev/class/codec/706
 Stop done
 ```

 ### Get the plug detect state

 ```none
 $ audio-codec-ctl p
 Executing on device: /dev/class/codec/706
 fuchsia_hardware_audio::PlugState{ plugged = true, plug_state_time = 1167863520, }
 ```

 ### Get the supported processing elements

 ```none
 $ audio-codec-ctl e
 Executing on device: /dev/class/codec/706
 [ fuchsia_hardware_audio_signalprocessing::Element{ id = 1, type = fuchsia_hardware_audio_signalprocessing::ElementType::kGain, type_specific = fuchsia_hardware_audio_signalprocessing::TypeSpecificElement::gain(fuchsia_hardware_audio_signalprocessing::Gain{ type = fuchsia_hardware_audio_signalprocessing::GainType::kDecibels, min_gain = -63.5, max_gain = 0, min_gain_step = 0.5, }), }, fuchsia_hardware_audio_signalprocessing::Element{ id = 2, type = fuchsia_hardware_audio_signalprocessing::ElementType::kMute, }, ]
 ```

 ### Get the supported topologies

 ```none
 $ audio-codec-ctl t
 Executing on device: /dev/class/codec/706
 [ fuchsia_hardware_audio_signalprocessing::Topology{ id = 1, processing_elements_edge_pairs = [ fuchsia_hardware_audio_signalprocessing::EdgePair{ processing_element_id_from = 1, processing_element_id_to = 2, }, fuchsia_hardware_audio_signalprocessing::EdgePair{ processing_element_id_from = 2, processing_element_id_to = 3, }, ], }, ]
 ```

 ### Get a processing element state

 ```none
 $ audio-codec-ctl w 1
 Executing on device: /dev/class/codec/706
 fuchsia_hardware_audio_signalprocessing::ElementState{ type_specific = fuchsia_hardware_audio_signalprocessing::TypeSpecificElementState::gain(fuchsia_hardware_audio_signalprocessing::GainElementState{ gain = 0, }), enabled = true, }
 ```

 ### Controls a processing element

 ```none
 $ audio-codec-ctl set 1 enable gain 1.23 vendor 0x12 0x98
 Setting element state:
 fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateRequest{ processing_element_id = 1, state = fuchsia_hardware_audio_signalprocessing::ElementState{ type_specific = fuchsia_hardware_audio_signalprocessing::TypeSpecificElementState::gain(fuchsia_hardware_audio_signalprocessing::GainElementState{ gain = 1.23, }), enabled = true, vendor_specific_data = [ 18, 152, ], }, }
 Executing on device: /dev/class/codec/706
 ```

 ### Specify device

 ```none
 $ audio-codec-ctl -d 706 p
 Executing on device: /dev/class/codec/706
 fuchsia_hardware_audio::PlugState{ plugged = true, plug_state_time = 1167863520, }
 $ audio-codec-ctl -d 123 p
 Executing on device /dev/class/codec/123
 watch plug state failed: FIDL operation failed due to peer closed, status: ZX_ERR_PEER_CLOSED (-24)
 $ audio-codec-ctl -d /dev/class/codec/706 p
 Executing on device: /dev/class/codec/706
 fuchsia_hardware_audio::PlugState{ plugged = true, plug_state_time = 1167863520, }
 ```

 ### Source code {#source}

 Source code for `audio-codec-ctl`: [`//src/media/audio/tools/audio-codec-ctl/`][src]

 [src]: https://cs.opensource.google/fuchsia/fuchsia/+/main:src/media/audio/tools/audio-codec-ctl/

 <!--

 // LINT.ThenChange(//src/media/audio/tools/audio-codec-ctl/main.cc)

 -->
	<!--

	// LINT.IfChange

	-->

	# audio-codec-ctl

	Audio hardware codec driver control. Used to control and get information from an audio hardware
	codec driver via the FIDL codec interface.
	See [`audio-driver-ctl`](/docs/reference/tools/hardware/audio-driver-ctl.md)
	to play, record, and configure audio streams.

	## Usage {#usage}

	```none
	audio-codec-ctl [-d\|--device <device>] f[ormats]

	audio-codec-ctl [-d\|--device <device>] b[ridgeable]

	audio-codec-ctl [-d\|--device <device>] r[eset]

	audio-codec-ctl [-d\|--device <device>] m[ode_bridged] true\|false

	audio-codec-ctl [-d\|--device <device>] d[ai] <number_of_channels>
	<channels_to_use_bitmask> pdm\|upcm\|spcm\|fpcm none\|i2s\|left-stereo\|right-stereo\|1tdm\|2tdm\|3tdm
	<frame_rate> <bits_per_slot> <bits_per_sample>

	audio-codec-ctl [-d\|--device <device>] start

	audio-codec-ctl [-d\|--device <device>] stop

	audio-codec-ctl [-d\|--device <device>] p[lug_state]

	audio-codec-ctl [-d\|--device <device>] e[elements]

	audio-codec-ctl [-d\|--device <device>] t[opologies]

	audio-codec-ctl [-d\|--device <device>] w[atch] <id>

	audio-codec-ctl [-d\|--device <device>] set <id> [enable\|disable] [gain <gain>] [latency <nsecs>]
	[vendor <hex> <hex> ...]

	audio-codec-ctl [-h\|--help]
	```

	## Commands {#commands}

	Audio hardware codec driver control on `<device>` (full path specified e.g. `/dev/class/codec/123` or
	only the devfs node name specified e.g. `123`) or unspecified (picks the first device in
	/dev/class/codec). Only one command can be specified per invocation.


	### `formats` {#formats}

	```none
	audio-codec-ctl [-d\|--device <device>] f[ormats]
	```

	Retrieves the DAI formats supported by the codec.

	### `info` {#info}

	```none
	audio-codec-ctl [-d\|--device <device>] i[nfo]
	```

	Retrieves textual information about the codec.

	### `capabilities_plug_detect` {#plugdetect}

	```none
	audio-codec-ctl [-d\|--device <device>] c[apabilities_plug_detect]
	```

	Retrieves Plug Detect Capabilities.

	### `bridgeable` {#bridgeable}

	```none
	audio-codec-ctl [-d\|--device <device>] b[ridgeable]
	```

	Returns whether a codec is bridgeable.

	### `reset` {#reset}

	```none
	audio-codec-ctl [-d\|--device <device>] r[eset]
	```

	Resets the codec.

	### `mode_bridged` {#bridged}

	```none
	audio-codec-ctl [-d\|--device <device>] m[ode_bridged] true\|false
	```

	Sets a codec bridged mode to true or false.

	### `dai` {#dai}

	```none
	audio-codec-ctl [-d\|--device <device>] d[ai] <number_of_channels>
	<channels_to_use_bitmask> pdm\|upcm\|spcm\|fpcm none\|i2s\|left-stereo\|right-stereo\|1tdm\|2tdm\|3tdm
	<frame_rate> <bits_per_slot> <bits_per_sample>
	```

	Sets the DAI format to be used in the codec interface.

	`<number_of_channels>`: Number of channels.

	`<channels_to_use_bitmask>`: Sets which channels are active via a bitmask. The least significant
	bit corresponds to channel index 0.

	`pdm`: Pulse Density Modulation samples.

	`upcm`: Signed Linear Pulse Code Modulation samples at the host endianness.

	`spcm`: Unsigned Linear Pulse Code Modulation samples at the host endianness.

	`fpcm`: Floating point samples IEEE-754 encoded.

	`none`: No frame format as in samples without a frame sync like PDM.

	`i2s`: Format as specified in the I2S specification.

	`left-stereo`: Left justified, 2 channels.

	`right-stereo`: Right justified, 2 channels.

	`1tdm`: Left justified, variable number of channels, data starts at frame sync changes from low to
	high clocked out at the rising edge of sclk. The frame sync must stay high for exactly 1
	clock cycle.

	`2tdm`: Left justified, variable number of channels, data starts one clock cycle after the frame
	sync changes from low to high clocked out at the rising edge of sclk. The frame sync must
	stay high for exactly 1 clock cycle.

	`3tdm`: Left justified, variable number of channels, data starts two clock cycles after the frame
	sync changes from low to high clocked out at the rising edge of sclk. The frame sync must
	stay high for exactly 1 clock cycle.

	`<frame_rate>`: The frame rate for all samples.

	`<bits_per_slot>`: The bits per slot for all channels.

	`<bits_per_sample>`: The bits per sample for all samples. Must be smaller than bits per channel
	for samples to fit.

	### `start` {#start}

	```none
	audio-codec-ctl [-d\|--device <device>] start
	```

	Start/Re-start the codec operation.

	### `stop` {#stop}

	```none
	audio-codec-ctl [-d\|--device <device>] stop
	```

	Stops the codec operation.

	### `plug_state` {#plug}

	```none
	audio-codec-ctl [-d\|--device <device>] p[lug_state]
	```

	Get the plug detect state.

	### `elements` {#elements}

	```none
	audio-codec-ctl [-d\|--device <device>] e[lements]
	```

	Returns a vector of supported processing elements.

	### `topologies` {#topologies}

	```none
	audio-codec-ctl [-d\|--device <device>] t[opologies]
	```

	Returns a vector of supported topologies.

	### `watch` {#watch}

	```none
	audio-codec-ctl [-d\|--device <device>] w[atch] <id>
	```

	Get a processing element state.

	### `set` {#set}

	```none
	audio-codec-ctl [-d\|--device <device>] set <id> [enable\|disable] [gain <gain>] [latency <nsecs>]
	[vendor <hex> <hex> ...]
	```

	Controls a processing element.

	`<id>`: Processing element id.

	`enable`: Process element enabled state.

	`disable`: Process element disabled state.

	`<gain>`: Current gain in GainType format reported in the supported processing elements vector.

	`<nsecs>`: Latency added to the pipeline in nanoseconds.

	`<hex>`: Vendor specific raw byte to feed to the processing element in hex format.

	## Examples {#examples}

	### Retrieves the DAI formats supported

	```none
	$ audio-codec-ctl f
	Executing on device: /dev/class/codec/706
	[ fuchsia_hardware_audio::DaiSupportedFormats{ number_of_channels = [ 2, 4, ], sample_formats = [ fuchsia_hardware_audio::DaiSampleFormat::kPcmSigned, ], frame_formats = [ fuchsia_hardware_audio::DaiFrameFormat::frame_format_standard(fuchsia_hardware_audio::DaiFrameFormatStandard::kI2S), fuchsia_hardware_audio::DaiFrameFormat::frame_format_standard(fuchsia_hardware_audio::DaiFrameFormatStandard::kTdm1), ], frame_rates = [ 48000, 96000, ], bits_per_slot = [ 16, 32, ], bits_per_sample = [ 16, 32, ], }, ]
	```

	### Retrieves textual information

	```none
	$ audio-codec-ctl i
	Executing on device: /dev/class/codec/706
	fuchsia_hardware_audio::CodecInfo{ unique_id = "", manufacturer = "Texas Instruments", product_name = "TAS5825m", }
	```

	### Retrieves Plug Detect Capabilities

	```none
	$ audio-codec-ctl c
	Executing on device: /dev/class/codec/706
	fuchsia_hardware_audio::PlugDetectCapabilities::kHardwired
	```

	### Returns whether the codec is bridgeable

	```none
	$ audio-codec-ctl b
	Executing on device: /dev/class/codec/706
	Is bridgeable: false
	```

	### Resets the codec

	```none
	$ audio-codec-ctl r
	Executing on device: /dev/class/codec/706
	Reset done
	```

	### Sets a codec's bridged mode

	```none
	$ audio-codec-ctl -m true
	Setting bridged mode to: true
	Executing on device: /dev/class/codec/706
	```

	### Sets the DAI format to be used in the codec interface

	```none
	$ audio-codec-ctl d 2 1 s i 48000 16 32
	Setting DAI format:
	fuchsia_hardware_audio::DaiFormat{ number_of_channels = 2, channels_to_use_bitmask = 1, sample_format = fuchsia_hardware_audio::DaiSampleFormat::kPcmSigned, frame_format = fuchsia_hardware_audio::DaiFrameFormat::frame_format_standard(fuchsia_hardware_audio::DaiFrameFormatStandard::kI2S), frame_rate = 48000, bits_per_slot = 16, bits_per_sample = 32, }
	Executing on device: /dev/class/codec/706
	```

	### Start/Re-start the codec operation

	```none
	$ audio-codec-ctl start
	Executing on device: /dev/class/codec/706
	Start done
	```

	### Stops the codec operation

	```none
	$ audio-codec-ctl stop
	Executing on device: /dev/class/codec/706
	Stop done
	```

	### Get the plug detect state

	```none
	$ audio-codec-ctl p
	Executing on device: /dev/class/codec/706
	fuchsia_hardware_audio::PlugState{ plugged = true, plug_state_time = 1167863520, }
	```

	### Get the supported processing elements

	```none
	$ audio-codec-ctl e
	Executing on device: /dev/class/codec/706
	[ fuchsia_hardware_audio_signalprocessing::Element{ id = 1, type = fuchsia_hardware_audio_signalprocessing::ElementType::kGain, type_specific = fuchsia_hardware_audio_signalprocessing::TypeSpecificElement::gain(fuchsia_hardware_audio_signalprocessing::Gain{ type = fuchsia_hardware_audio_signalprocessing::GainType::kDecibels, min_gain = -63.5, max_gain = 0, min_gain_step = 0.5, }), }, fuchsia_hardware_audio_signalprocessing::Element{ id = 2, type = fuchsia_hardware_audio_signalprocessing::ElementType::kMute, }, ]
	```

	### Get the supported topologies

	```none
	$ audio-codec-ctl t
	Executing on device: /dev/class/codec/706
	[ fuchsia_hardware_audio_signalprocessing::Topology{ id = 1, processing_elements_edge_pairs = [ fuchsia_hardware_audio_signalprocessing::EdgePair{ processing_element_id_from = 1, processing_element_id_to = 2, }, fuchsia_hardware_audio_signalprocessing::EdgePair{ processing_element_id_from = 2, processing_element_id_to = 3, }, ], }, ]
	```

	### Get a processing element state

	```none
	$ audio-codec-ctl w 1
	Executing on device: /dev/class/codec/706
	fuchsia_hardware_audio_signalprocessing::ElementState{ type_specific = fuchsia_hardware_audio_signalprocessing::TypeSpecificElementState::gain(fuchsia_hardware_audio_signalprocessing::GainElementState{ gain = 0, }), enabled = true, }
	```

	### Controls a processing element

	```none
	$ audio-codec-ctl set 1 enable gain 1.23 vendor 0x12 0x98
	Setting element state:
	fuchsia_hardware_audio_signalprocessing::SignalProcessingSetElementStateRequest{ processing_element_id = 1, state = fuchsia_hardware_audio_signalprocessing::ElementState{ type_specific = fuchsia_hardware_audio_signalprocessing::TypeSpecificElementState::gain(fuchsia_hardware_audio_signalprocessing::GainElementState{ gain = 1.23, }), enabled = true, vendor_specific_data = [ 18, 152, ], }, }
	Executing on device: /dev/class/codec/706
	```

	### Specify device

	```none
	$ audio-codec-ctl -d 706 p
	Executing on device: /dev/class/codec/706
	fuchsia_hardware_audio::PlugState{ plugged = true, plug_state_time = 1167863520, }
	$ audio-codec-ctl -d 123 p
	Executing on device /dev/class/codec/123
	watch plug state failed: FIDL operation failed due to peer closed, status: ZX_ERR_PEER_CLOSED (-24)
	$ audio-codec-ctl -d /dev/class/codec/706 p
	Executing on device: /dev/class/codec/706
	fuchsia_hardware_audio::PlugState{ plugged = true, plug_state_time = 1167863520, }
	```

	### Source code {#source}

	Source code for `audio-codec-ctl`: [`//src/media/audio/tools/audio-codec-ctl/`][src]

	[src]: https://cs.opensource.google/fuchsia/fuchsia/+/main:src/media/audio/tools/audio-codec-ctl/

	<!--

	// LINT.ThenChange(//src/media/audio/tools/audio-codec-ctl/main.cc)

	-->