Fujitsu DTV/STB solution driver (FAPex driver) Documentation [V01L00R00]


FAPEX_AUDEC_Ac3ParamStrT Struct Reference

Parameters for the AC3 decoder. More...

Data Fields

int32_t decoder
uint32_t compMode
uint32_t stereoMode
uint32_t dualMonoMode
int32_t outChannelCfg
uint32_t maxRepCount
uint32_t ac3ToSpdif
uint32_t dummy
double dynsclh
double dynscll
double pcmscl

Detailed Description

Parameters for the AC3 decoder.

This data structure covers all parameters which can be set for the AC3 decoder. Setting these parameters is optional. If not the codec applies the mentioned defaults.

Note:
The various parameters are defined by the Dolby Sotware Interface Protocol.
See also:
FAPEX_AUDEC_Ioctl/FAPEX_IOCCOM_AUDEC_SET_CODEC_PARAMS

Field Documentation

The audio decoder ID.

Note:
This field must be set to FAPEX_AUDEC_CODEC_TYPE_AC3.

Dolby SIP compression mode. A value between 0 and 3. (Codec's default: 2)

Dolby SIP stereo output mode. A value between 0 and 2. (Codec's default: 0)

Dolby SIP dual mono reproduction mode. A value between 0 and 3. (Codec's default: 0)

Dolby SIP output channel configuration. A value between 0 and 15. (Codec's default: -1)

Note:
Bit 3 determines the LFE presence and bit 0-2 corresponds to the channel configuration code as described by the Dolby SIP document.

The output channel configuration is usually automatically derived from the AUOUT driver's speaker configuration. Sometimes it could be desirable to overwrite this approach. For this purpose this parameter can be used. If the codec's current channel configuration should not be overwritten it must be set to -1.

Dolby SIP maximum repeat count before muting. A value between 0 and 2**15. (Codec's default: 0)

Enable AC-3 through SPDIF. This switch tells the AC3 decoder to output the AC3 bitstream also via SPDIF. Otherwise it will output PCM of the first two speakers in the associated audio output (AUOUT) via SPDIF as usual.

Note:
This switch takes only effect if SPDIF has been enabled for the audio output associated with the AC3 decoder. A value of 0 or 1. (Codec's default: 0)

dummy to achieve compatible alignment between ARM and ARC

Dolby SIP dynamic range scale factor high level signals. A value between 0.0 and 1.0. (Codec's default: 1.0)

Dolby SIP dynamic range scale factor low level signals. A value between 0.0 and 1.0. (Codec's default: 1.0)

Dolby SIP PCM scale factor. A value between 0.0 and 1.0. (Codec's default: 1.0)


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


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