The HTTP Streamer can be enabled via the _streamer_enabled_ daemon parameter.
When the Streamer is active the daemon starts capturing the configured _Sinks_ up to the maximum number of channels configured by the _streamer_channels_ parameters.
The captured PCM samples are split into _streamer_files_num_ files of _streamer_file_duration_ duration (in seconds) for each sink, compressed using AAC LC codec and served via HTTP.
The HTTP streamer requires the libfaac-dev package to compile.
Please note that since the HTTP Streamer uses the RAVENNA ALSA device for capturing it's not possible to use such device for other audio captures.
* daemon:
- do not assume filesystem hierarchy in CMakeLists.txt
- do not replace default CXX compilation flags to avoid breaking
builds with external toolchain (e.g. yocto)
- allow for tests to be enabled/disabled
- allow for cpp-httplib dir to be provided by hand; otherwise search
for it in system locations
- allow for the location of the ravenna alsa lkm to be provided by
hand, otherwise look for it in system locations
- mDNS advertisement for all local Sources is implemented by mdns_server.[cpp,hpp] and based on Linux Avahi.
- RTSP server implementation supports DESCRIBE method to return SDP of local Sources and supports persistent connection but doesn't provide service updates via UPDATE method.
- Modified RTSP client to browse for _ravenna_session subtype of _rtsp._tcp services only.
- Modified SAP and mDNS discovery to avoid returning local Sources advertised by the daemon.
- Added "rtsp_port" and "node_id" config parameters.
- rtsp_port is a read/write parameter that contains the port of the RTSP server.
- node_id is a read only parameter that contains the unique daemon identifier used in mDNS and SAP sources announcements.
- Modified session manager to check that every Source and Sink created by the user has a unique name.
- Modified WebUI to visualize node_id and to visualize and edit rtsp_port parameters in Config tab.
- Extended regression test to verify proper behaviour of mDNS/RTSP sources advertisement and discovery.
- Modified REST API to browse remote sources to allow browsing of SAP, mDNS and all sources via HTTP GET /api/browse/sources/[all|mdns|sap].
- Amended daemon documentation.
Added to the WebUI the possibility to directly select a remote source SDP file for a Sink.
New files:
daemon/mdns_client.hpp,cpp -> mDNS client implementation using Avahi client library
daemon/rtsp_client.hpp,cpp -> RTSP client implementation used to transfer SDP file
daemon/utils.cpp -> used for common utility functions
.clang-format -> added clang-format configuration file
Modified files:
daemon/CMakeList.txt -> added support for Avahi and option WITH_AVAHI=[yes/no] to compile the daemon with or without Avahi mDNS support
daemon/config.hpp,cpp -> added configuration option mdns_enabled to enable or disable mDNS discovery at runtime
daemon/json.cpp -> extended JSON config with mdns_enabled option
daemon/browser.hpp,cpp -> added support for mDNS client to the browser
daemon/session_manager.cpp -> added support for RTSP protocol to Source URL field and fixed issue with SDP file parsing
webui/RemoteSources.js -> added visualization of mDNS remote sources
webui/SinkEdit.js -> added the possibility to directly select a remote source SDP file for a Sink
webui/SourceInfo.js -> added visualization of protocol source (SAP, mDNS or local) for a source
ubuntu-packages.sh -> added libavahi-client-dev to the list of required packages
build.sh -> added WITH_AVAHI=yes option when invoking CMake
README.md -> added notes about mDNS support via Avahi
daemon/README.md -> added notes about mDNS support via Avahi, support for RTSP protocol in source and new mdns_enabled config param
Additional minor changes to remaining files.
- added "sap_mcast_addr" parameter to daemon conguration and WebUI to configure the SAP multicast address used for sending and receiving source announcements
- added REST API to retrieve the remote sources collected by the daemon (GET /api/browse/sources)
- added Browser tab to the WebUI to visualize info on the available remote sources
- added Info function to sources listed in the Sources tab to visualize the associated SDP file
- extended daemon regression tests to test the SAP Browser
