0d479d043d
- fc_writer.h/fc_writer.c: new framecache slot writer module - Registers slot via POST /slots to framecache HTTP API on signal lock - Opens shm file returned by API (O_RDWR + mmap MAP_SHARED) - fc_writer_write(): atomic write_cursor advance + sem_post per frame - fc_writer_close(): DELETE /slots/:id + munmap + sem_close - HTTP calls via raw POSIX sockets (no libcurl dependency) - Parses host:port from FC_URL env var or --fc-url arg - main.c changes: - PortState gains slot_id, fc_url, fc_writer fields - --fc-url CLI arg + FC_URL env var (default http://localhost:7435) - On signal lock: fc_writer_open() before thread launch; falls back to FIFO if framecache unreachable (fc_writer == NULL) - video_thread: shm path primary (fc_writer != NULL), FIFO path fallback (fc_writer == NULL or LEGACY_FIFO=1) - Format JSON now includes slot_id field for node-agent consumption - Cleanup: fc_writer_close() before VHD_CloseBoardHandle - CMakeLists.txt: - Add fc_writer.c to build - Link rt (shm_open, sem_open) - LEGACY_FIFO option (OFF by default) for nodes without framecache Audio thread unchanged — audio stays in FIFO (shm audio is roadmap).
49 lines
1.6 KiB
CMake
49 lines
1.6 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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project(deltacast-bridge C)
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set(CMAKE_C_STANDARD 17)
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set(SDK_ROOT "/sdk" CACHE PATH "Path to extracted VideoMaster SDK")
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# Legacy FIFO mode — set LEGACY_FIFO=ON to disable framecache shm writes
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# and fall back to the original named-FIFO path.
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option(LEGACY_FIFO "Use named FIFOs instead of framecache shm" OFF)
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# Primary binary: deltacast-bridge (shared multi-port daemon)
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add_executable(deltacast-bridge main.c fc_writer.c)
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if(LEGACY_FIFO)
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target_compile_definitions(deltacast-bridge PRIVATE LEGACY_FIFO=1)
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message(STATUS "deltacast-bridge: LEGACY_FIFO mode enabled (shm disabled)")
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else()
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message(STATUS "deltacast-bridge: framecache shm mode enabled")
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endif()
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target_include_directories(deltacast-bridge PRIVATE
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${SDK_ROOT}/include/videomaster
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)
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target_link_directories(deltacast-bridge PRIVATE
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${SDK_ROOT}/lib
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)
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target_link_libraries(deltacast-bridge PRIVATE
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videomasterhd
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videomasterhd_audio
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pthread
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rt # shm_open, sem_open
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)
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# Embed the SDK RPATH so the binary finds the .so at runtime
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set_target_properties(deltacast-bridge PROPERTIES
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INSTALL_RPATH "/usr/local/lib/deltacast"
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BUILD_WITH_INSTALL_RPATH TRUE
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)
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# Compat symlink: deltacast-capture -> deltacast-bridge
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# (node-agent and any legacy scripts that reference the old name still work)
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add_custom_command(TARGET deltacast-bridge POST_BUILD
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COMMAND ${CMAKE_COMMAND} -E create_symlink
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$<TARGET_FILE:deltacast-bridge>
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$<TARGET_FILE_DIR:deltacast-bridge>/deltacast-capture
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COMMENT "Creating deltacast-capture compat symlink"
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)
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