fegger
6f4c670aa8
Add a linkable CaptureFactory stub so the capture API can be consumed without unresolved symbols. Change remaining config string_view fields to std::string to prevent dangling references. Update handoff memory.
41 lines
1.5 KiB
Markdown
41 lines
1.5 KiB
Markdown
# Project Memory — screen_cast
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Last updated: initial scaffold.
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## Project state
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- Phase 2 follow-up review items addressed: encoder rate control is now
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bitrate-only (removed CRF), encoder/decoder cache their SwsContext, configs
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own their strings, bitstream helper is internal to the encoder with a NAL
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length guard, FFmpeg open errors are reported, and the round-trip test
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verifies Annex-B prefix and keyframes.
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- `.clang-format` added at repo root and clang-format enforcement added to
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`AGENTS.md` and `cpp-meson-build/SKILL.md`.
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- Phase 3 capture now has a linkable stub (`src/capture/pipewire_capture.cpp`)
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so the API can be consumed without an unresolved symbol.
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- Remaining implementation: capture, transport, rendering, and CLI/pipeline glue.
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## Decisions
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- Language: C++20 with explicit modern-C++ guidelines in `AGENTS.md` and
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`cpp-meson-build/SKILL.md`.
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- Build system: Meson.
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- Capture: PipeWire + xdg-desktop-portal.
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- Encode/Decode: FFmpeg (libavcodec, libavutil, libswscale).
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- H.264 encoder path: software `libx264`, low-latency settings, Annex-B output.
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- Decoder receives SPS/PPS through `DecoderConfig.extradata`.
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- Transport: RTP over UDP; signaling via WebSocket/JSON.
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- Discovery: mDNS/Avahi.
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- Rendering: SDL2 or SDL3 + OpenGL.
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- Namespace: `sc`.
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## Active blockers
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None.
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## Open questions
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- GUI framework (Qt6 vs. none / CLI only) — deferred to later phase.
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- Hardware acceleration strategy (VAAPI / Vulkan Video / NVENC) — evaluate after
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software encode path works.
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