OMX_AUDIO_CONFIG_VOLUMETYPE Struct Reference

#include <OMX_Audio.h>

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

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Detailed Description

Audio Volume adjustment for a port

Definition at line 1008 of file OMX_Audio.h.

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Field Documentation

OMX_BOOL OMX_AUDIO_CONFIG_VOLUMETYPE::bLinear

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

Definition at line 1016 of file OMX_Audio.h.

Referenced by omx_audio_mixer_component_Constructor(), and omx_volume_component_GetConfig().

OMX_U32 OMX_AUDIO_CONFIG_VOLUMETYPE::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 1011 of file OMX_Audio.h.

Referenced by main(), omx_audio_mixer_component_Constructor(), omx_audio_mixer_component_GetConfig(), and omx_audio_mixer_component_SetConfig().

OMX_U32 OMX_AUDIO_CONFIG_VOLUMETYPE::nSize

size of the structure in bytes

Definition at line 1009 of file OMX_Audio.h.

OMX_VERSIONTYPE OMX_AUDIO_CONFIG_VOLUMETYPE::nVersion

OMX specification version information

Definition at line 1010 of file OMX_Audio.h.

OMX_BS32 OMX_AUDIO_CONFIG_VOLUMETYPE::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 1018 of file OMX_Audio.h.

Referenced by main(), omx_audio_mixer_component_BufferMgmtCallback(), omx_audio_mixer_component_Constructor(), omx_audio_mixer_component_SetConfig(), omx_volume_component_GetConfig(), and omx_volume_component_SetConfig().

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

• OMX_Audio.h