commit	cd02ce9c60da962a7981320b26aada8744718941	[log] [tgz]
author	Pavlin Radoslavov <pavlin@google.com>	Fri Nov 04 17:18:51 2016 -0700
committer	Pavlin Radoslavov <pavlin@google.com>	Thu Dec 01 15:40:19 2016 -0800
tree	46eccc069c2066f5857fdaccd63ddae35a8b9e48
parent	ee96a3c60fca590d38025925c072d264e06493c4 [diff]

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  Now it is superceded by tA2DP_ENCODER_INTERFACE.encoder_init.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

tree: 46eccc069c2066f5857fdaccd63ddae35a8b9e48

README.md

Fluoride Bluetooth stack

Building and running on AOSP

Just build AOSP - Fluoride is there by default.

Building and running on Linux

Instructions for Ubuntu, tested on 14.04 with Clang 3.5.0 and 16.10 with Clang 3.8.0

Install required libraries

sudo apt-get install libevent-dev libc++-dev libc++abi-dev

Install build tools

Install ninja build system

sudo apt-get install ninja-build

or download binary from https://github.com/ninja-build/ninja/releases

Install gn - meta-build system that generates NinjaBuild files.

Get sha1 of current version from here and then download corresponding executable:

wget -O gn http://storage.googleapis.com/chromium-gn/<gn.sha1>

i.e. if sha1 is "3491f6687bd9f19946035700eb84ce3eed18c5fa" (value from 24 Feb 2016) do

wget -O gn http://storage.googleapis.com/chromium-gn/3491f6687bd9f19946035700eb84ce3eed18c5fa

Then make binary executable and put it on your PATH, i.e.:

chmod a+x ./gn
sudo mv ./gn /usr/bin

Download source

mkdir ~/fluoride
cd ~/fluoride
git clone https://android.googlesource.com/platform/system/bt

Then fetch third party dependencies:

cd ~/fluoride/bt
mkdir third_party
cd third_party
git clone https://github.com/google/googletest.git
git clone https://android.googlesource.com/platform/external/libchrome
git clone https://android.googlesource.com/platform/external/modp_b64
git clone https://android.googlesource.com/platform/external/tinyxml2
git clone https://android.googlesource.com/platform/hardware/libhardware

And third party dependencies of third party dependencies:

cd fluoride/bt/third_party/libchrome/base/third_party
mkdir valgrind
cd valgrind
curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/valgrind.h?format=TEXT | base64 -d > valgrind.h
curl https://chromium.googlesource.com/chromium/src/base/+/master/third_party/valgrind/memcheck.h?format=TEXT | base64 -d > memcheck.h

NOTE: If system/bt is checked out under AOSP, then create symbolic links instead of downloading sources

cd system/bt
mkdir third_party
cd third_party
ln -s ../../../external/libchrome libchrome
ln -s ../../../external/modp_b64 modp_b64
ln -s ../../../external/tinyxml2 tinyxml2
ln -s ../../../hardware/libhardware libhardware
ln -s ../../../external/googletest googletest

Generate your build files

cd ~/fluoride/bt
gn gen out/Default

Build

cd ~/fluoride/bt
ninja -C out/Default all

This will build all targets (the shared library, executables, tests, etc) and put them in out/Default. To build an individual target, replace "all" with the target of your choice, e.g. ninja -C out/Default net_test_osi.

Run

cd ~/fluoride/bt/out/Default
LD_LIBRARY_PATH=./ ./bluetoothtbd -create-ipc-socket=fluoride

Eclipse IDE Support

Follows the Chromium project Eclipse Setup Instructions until "Optional: Building inside Eclipse" section (don't do that section, we will set it up differently)
Generate Eclipse settings:

cd system/bt
gn gen --ide=eclipse out/Default

In Eclipse, do File->Import->C/C++->C/C++ Project Settings, choose the XML location under system/bt/out/Default
Right click on the project. Go to Preferences->C/C++ Build->Builder Settings. Uncheck "Use default build command", but instead using "ninja -C out/Default"
Goto Behaviour tab, change clean command to "-t clean"