fegger
943596da6d
Loss recovery for the streaming path: - PLI over signaling: the depacketizer now reports damaged frames (DepacketizeResult) and the receiver asks the sender for a keyframe (SessionPli, rate-limited to one per 500 ms). The sender keeps the signaling channel open during the session and honors PLIs through the new thread-safe SenderPipeline::request_keyframe(). Recovery takes one frame time instead of waiting out the GOP. - RtpJitterBuffer: reorders RTP packets by sequence number (16 packets / 60 ms) before the in-order depacketizer, so Wi-Fi reordering is not misread as loss; in-order streams release immediately, and a straggler older than the delivered sequence is discarded. - Hardware H.264 decode probe: DecoderFactory tries h264_v4l2m2m (the VideoCore path on the Pi) with an automatic software fallback and a clear journal line for the chosen path; --swdecode opts out. Validated: PLI end-to-end with a probe that drops a mid-keyframe packet over real UDP (receiver logged the damaged frame and the PLI arrived with the session id); hardware probe fails cleanly and falls back on this desktop; jitter reordering covered by unit tests. meson test 5/5 in both build configurations, valgrind clean.
36 lines
968 B
C++
36 lines
968 B
C++
#pragma once
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#include <cstdint>
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#include <optional>
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#include <string_view>
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#include <variant>
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namespace sc {
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struct SendCommand {
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std::string_view target = "monitor"; // monitor, window
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std::string_view peer_address; // optional; empty means auto-discover
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int bitrate_kbps = 4000;
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};
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struct ReceiveCommand {
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std::string_view peer_address; // optional, informational
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int local_rtp_port = 5004;
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int signaling_port = 5005;
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bool fullscreen = false;
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bool software_decode = false; // --swdecode disables the hardware probe
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};
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struct DiscoverCommand {
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int timeout_seconds = 3;
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};
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using Command = std::variant<SendCommand, ReceiveCommand, DiscoverCommand>;
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// Parse command line arguments. Prints usage and returns std::nullopt on error.
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// `argv` is `char const* const*` so both `main`'s `char**` and const arrays
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// convert implicitly.
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std::optional<Command> parse_cli(int argc, const char* const argv[]);
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} // namespace sc
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