meson_options.txt

option('enable_deepstream_meta', type : 'boolean', value : false,
  description : 'Build the optional DeepStream metadata bridge (links libnvds_meta) ' +
                'so nvmmsink can serialize NvDsBatchMeta detections into the IPC ' +
                'side-channel. The flat wire format and GstNvmmDetMeta stay ' +
                'DeepStream-free regardless of this option.')

# --- CUDA build-time parameters (consumed by every .cu target in the tree:
# nvmmsamurai + the samurai test/benchmark probes, AND the analytics_cuda
# kernels + their parity probe/benchmark). One shared knob rather than a
# per-feature copy — a mismatched arch/std between SAMURAI and analytics
# kernels would be a confusing state to debug. Combo-typed so meson rejects a
# bad value at `meson setup` instead of failing deep inside nvcc. ---
option('gpu_arch', type : 'combo',
  choices : ['sm_72', 'sm_75', 'sm_80', 'sm_86', 'sm_87', 'sm_89', 'sm_90'],
  value : 'sm_87',
  description : 'GPU compute architecture for every CUDA kernel in the tree ' +
                '(SAMURAI + analytics_cuda). Jetson: sm_72 = Xavier, sm_87 = ' +
                'Orin (default). Set to match the target board; a mismatch ' +
                'makes the kernels fail to launch. (cuda_arch is a reserved ' +
                'meson name, hence gpu_arch.)')

option('gpu_cxx_std', type : 'combo',
  choices : ['c++17', 'c++20'],
  value : 'c++20',
  description : 'C++ standard for every CUDA kernel in the tree (SAMURAI + ' +
                'analytics_cuda), nvcc -std. Default c++20 (libcu++ on CUDA ' +
                '12.6). Drop to c++17 only for an older toolchain that cannot ' +
                'compile the kernels at c++20.')

# Optional, OFF by default. The header-only motion-analytics components (analytics/)
# are always available and pure C++14 (no OpenCV); this feature only gates their
# unit tests.
option('analytics', type : 'feature', value : 'disabled',
  description : 'Build the motion-analytics component tests (analytics/). ' +
                'Default disabled; headers are available regardless. No external deps.')

# Optional, OFF by default. Golden-comparison tests + benchmarks that validate the
# hand-rolled analytics implementations against OpenCV as a reference oracle — the
# only part of the tree that uses OpenCV. Requires OpenCV when enabled.
option('analytics_golden', type : 'feature', value : 'disabled',
  description : 'Build the analytics golden-comparison tests + benchmarks that use ' +
                'OpenCV as the reference oracle. Default disabled; requires OpenCV.')

# Optional, OFF by default. CUDA implementation of the analytics component the
# benchmarks showed to be GPU-worthy (low_texture_motion), plus its host-parity
# probe test and CPU-vs-CUDA benchmark. Needs only the CUDA toolkit (nvcc +
# cudart) — deliberately NOT the TensorRT/NvBufSurface Jetson gate, so it builds
# on any CUDA host. gpu_arch/gpu_cxx_std options apply.
option('analytics_cuda', type : 'feature', value : 'disabled',
  description : 'Build the CUDA analytics kernels (low_texture_motion) + parity test ' +
                '+ benchmark. Default disabled; requires the CUDA toolkit.')