OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE Struct Reference
[OpenMAX IL Audio Domain]

#include <OMX_Audio.h>

Data Fields
OMX_U32	nSize
OMX_VERSIONTYPE	nVersion
OMX_U32	nPortIndex
OMX_U32	nChannel
OMX_BOOL	bLinear
OMX_BS32	sVolume
OMX_BOOL	bIsMIDI

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Detailed Description

Audio Volume adjustment for a channel

Definition at line 993 of file OMX_Audio.h.

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Field Documentation

OMX_U32 OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::nSize

size of the structure in bytes

Definition at line 994 of file OMX_Audio.h.

OMX_VERSIONTYPE OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::nVersion

OMX specification version information

Definition at line 995 of file OMX_Audio.h.

OMX_U32 OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::nPortIndex

Port index indicating which port to set. Select the input port to set just that port's volume. Select the output port to adjust the master volume.

Definition at line 996 of file OMX_Audio.h.

OMX_U32 OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::nChannel

channel to select from 0 to N-1, using OMX_ALL to apply volume settings to all channels

Definition at line 1001 of file OMX_Audio.h.

OMX_BOOL OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::bLinear

Is the volume to be set in linear (0.100) or logarithmic scale (mB)

Definition at line 1004 of file OMX_Audio.h.

OMX_BS32 OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::sVolume

Volume linear setting in the 0..100 range, OR Volume logarithmic setting for this port. The values for volume are in mB (millibels = 1/100 dB) relative to a gain of 1 (e.g. the output is the same as the input level). Values are in mB from nMax (maximum volume) to nMin mB (typically negative). Since the volume is "voltage" and not a "power", it takes a setting of -600 mB to decrease the volume by 1/2. If a component cannot accurately set the volume to the requested value, it must set the volume to the closest value BELOW the requested value. When getting the volume setting, the current actual volume must be returned.

Definition at line 1006 of file OMX_Audio.h.

OMX_BOOL OMX_AUDIO_CONFIG_CHANNELVOLUMETYPE::bIsMIDI

TRUE if nChannel refers to a MIDI channel, FALSE otherwise

Definition at line 1022 of file OMX_Audio.h.

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The documentation for this struct was generated from the following file:

• OMX_Audio.h