Rene KievitsandClaude Opus 5
7529a60650
Captures the TV's audio and sends it out over several transports. The
primary one is HyperHDR: RTP/L16 to a host-side loopback device, since
HyperHDR has no network audio input of its own. A second route renders
the spectrum on the TV and sends FlatBuffers images to port 19400
instead, for setups where touching the host's sound config is not an
option.
native/ the service: capture backends (PulseAudio, ALSA, exec,
test tone, all dlopen-based), DSP, and one file per sink
frontend/ D-pad driven UI at a fixed 1920x1080
servicefiles/ native service manifest plus the boot script
host/ RTP receiver and the loopback installer for the HyperHDR
machine
tools/ build/package, asset generation, Homebrew Channel
manifest, on-TV probe
test/ host-side suites: FlatBuffers and RTP verified against
real decoders, the engine end to end, the page in jsdom
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
111 lines
3.1 KiB
CMake
111 lines
3.1 KiB
CMake
cmake_minimum_required(VERSION 3.5)
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project(lgtv-audio-cap C)
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# Built with the openlgtv arm-webos-linux-gnueabi buildroot SDK:
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#
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# source /path/to/arm-webos-linux-gnueabi_sdk-buildroot/environment-setup
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# cmake -B build -DCMAKE_BUILD_TYPE=Release native
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# cmake --build build
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#
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# The SDK's environment-setup exports CC/SYSROOT and puts its pkg-config in
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# front, so luna-service2 and glib resolve to the TV's versions rather than the
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# host's.
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set(CMAKE_C_STANDARD 11)
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set(CMAKE_C_STANDARD_REQUIRED ON)
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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find_package(PkgConfig REQUIRED)
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pkg_check_modules(LUNASERVICE REQUIRED luna-service2)
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pkg_check_modules(GLIB REQUIRED glib-2.0)
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pkg_check_modules(GTHREAD REQUIRED gthread-2.0)
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# PmLogLib is how webOS services normally reach the system log. It is optional
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# here: the logger writes to stderr, which the service launcher captures.
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pkg_check_modules(PMLOG PmLogLib)
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add_executable(audiocap-service
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src/main.c
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src/service.c
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src/engine.c
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src/config.c
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src/dsp.c
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src/common/log.c
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src/common/json.c
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src/common/ringbuf.c
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src/capture/capture.c
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src/capture/cap_pulse.c
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src/capture/cap_alsa.c
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src/capture/cap_exec.c
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src/capture/cap_tone.c
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src/net/flatbuf.c
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src/net/hyperion.c
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src/net/streamserv.c
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src/sinks/sink.c
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src/sinks/sink_hyperhdr.c
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src/sinks/sink_hyperhdr_viz.c
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src/sinks/sink_udp.c
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src/sinks/sink_tcp.c
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src/sinks/sink_http.c
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)
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target_include_directories(audiocap-service PRIVATE
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src
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${LUNASERVICE_INCLUDE_DIRS}
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${GLIB_INCLUDE_DIRS}
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${GTHREAD_INCLUDE_DIRS}
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${PMLOG_INCLUDE_DIRS}
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)
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target_compile_options(audiocap-service PRIVATE
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-Wall -Wextra -Wno-unused-parameter
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${LUNASERVICE_CFLAGS_OTHER}
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${GLIB_CFLAGS_OTHER}
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)
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target_compile_definitions(audiocap-service PRIVATE
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_GNU_SOURCE
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# Lets LSRegisterPubPriv resolve on firmware older than 3.5 without making
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# the symbol mandatory on newer builds.
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SECURITY_COMPATIBILITY
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)
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# The audio backends are dlopen'd at runtime, so libpulse and libasound are
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# deliberately absent from this list: the service has to start on a TV that has
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# neither, report that in the diagnostics, and let the user pick another path.
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target_link_libraries(audiocap-service PRIVATE
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${LUNASERVICE_LIBRARIES}
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${GLIB_LIBRARIES}
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${GTHREAD_LIBRARIES}
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${PMLOG_LIBRARIES}
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pthread
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dl
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m
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)
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target_link_directories(audiocap-service PRIVATE
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${LUNASERVICE_LIBRARY_DIRS}
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${GLIB_LIBRARY_DIRS}
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${GTHREAD_LIBRARY_DIRS}
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${PMLOG_LIBRARY_DIRS}
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)
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if(CMAKE_C_COMPILER_ID STREQUAL "GNU" AND CMAKE_SYSTEM_PROCESSOR MATCHES "arm")
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# webOS 5/6 TVs are Cortex-A9 (and A53 on later chassis, which runs A9 code
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# fine). softfp matches the SDK's ABI.
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target_compile_options(audiocap-service PRIVATE
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-mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=neon -ffast-math
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)
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endif()
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# Homebrew services are unpacked to an arbitrary directory, so anything we ship
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# alongside the binary has to be found relative to it.
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set_target_properties(audiocap-service PROPERTIES
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BUILD_RPATH "$ORIGIN"
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INSTALL_RPATH "$ORIGIN"
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)
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install(TARGETS audiocap-service RUNTIME DESTINATION .)
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