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A2DP Codec related cleanup
* Add new A2DP API and the corresponding unit tests:
- A2DP_InitSource2SinkCodec()
- A2DP_SourceCodecSepIndex()
- A2DP_GetTrackBitsPerSample()
* Use the new API to simplify the codec selection and setup
* Rename A2DP_BldSbcMplHdr() to A2DP_BuildMediaPayloadHeaderSbc()
* Remove the following APIs, because they are not needed anymore:
- A2DP_BuildSinkConfig()
- A2DP_CodecConfigMatchesCapabilities()
- A2DP_SetSourceCodec()
- A2DP_CodecRequiresReconfig()
- A2DP_IsSourceCodecSupported()
* Remove the following generic APIs, and keep only the SBC-specific APIs.
The information returned by those functions is SBC-specific, and doesn't
apply to other codecs:
- A2DP_GetNumberOfSubbands()
- A2DP_GetNumberOfBlocks()
- A2DP_GetAllocationMethodCode()
- A2DP_GetChannelModeCode()
- A2DP_GetSamplingFrequencyCode()
- A2DP_GetMinBitpool()
- A2DP_GetMaxBitpool()
* Rename:
A2DP_GetTrackFrequency() -> A2DP_GetTrackSampleRate()
tA2DP_FEEDING_PARAMS.sampling_freq -> sample_rate
tA2DP_FEEDING_PARAMS.num_channel -> channel_count
tA2DP_FEEDING_PARAMS.bit_per_sample -> bits_per_sample
* Remove btif_a2dp_source_encoder_update(), tA2DP_ENCODER_UPDATE_PARAMS
and associated events and processing mechanism, because they are not
needed anymore.
* Remove tA2DP_ENCODER_INTERFACE.encoder_update, because it is not
used anymore.
Now it is superceded by tA2DP_ENCODER_INTERFACE.encoder_init.
* Fix a bug inside bta_av_api_register() when initializing
the stream control block.
* Refactor bta_av_co_audio_getconfig() and bta_av_co_audio_setconfig()
* Remove tBTA_AV_CO_CB.codec_config_setconfig field, because it is not
needed anymore.
* Remove unused arguments when opening/closing audio stream
* Remove #ifdef BTA_AV_DEBUG guards: BTA_AV_DEBUG is always TRUE
* Remove SBC Mono -> Stereo hack
Test: Manual testing: A2DP streaming to headphones. TestTracker/68727
Change-Id: Ie0b209f7ad6c21c2c6d8d2e6277b86dfa63388c6
21 files changed: