8c745d18e0
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Builds out the full v1 scope: a vendored+patched openscreen subset for low-latency Cast Streaming (Mirroring receiver 0F5096E8) alongside the existing Cast V2/HLS and new DLNA/AVTransport casting paths, breadcastd's Idle/Casting state machine with a private IPC socket, the breadcast GTK4 popup as a thin IPC client, and bread.cast.*/bread.command.cast.* breadd integration (device discovery, start/stop, mirroring lifecycle events). Also adds bakery/systemd/Forgejo CI packaging. Validated end-to-end against a real Chromecast/Google TV: negotiated Cast Streaming session, live pipeline playback, and daemon+GUI click-to-cast/ stop through the actual popup.
49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
// Copyright 2018 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "platform/api/time.h"
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#include <chrono>
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#include <ctime>
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#include <ratio>
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#include "util/chrono_helpers.h"
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#include "util/osp_logging.h"
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using std::chrono::high_resolution_clock;
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using std::chrono::steady_clock;
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using std::chrono::system_clock;
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namespace openscreen {
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Clock::time_point Clock::now() noexcept {
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constexpr bool kSteadyIsGoodEnough =
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std::ratio_less_equal_v<steady_clock::period, Clock::kRequiredResolution>;
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constexpr bool kHighResIsGoodEnough =
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std::ratio_less_equal_v<high_resolution_clock::period,
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Clock::kRequiredResolution> &&
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high_resolution_clock::is_steady;
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static_assert(kSteadyIsGoodEnough || kHighResIsGoodEnough,
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"No suitable default clock (steady + high enough resolution) "
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"on this platform");
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// 'if constexpr' guarantees compile-time branching.
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// We prefer steady_clock if it meets the requirements (usually cheaper).
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if constexpr (kSteadyIsGoodEnough) {
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return Clock::time_point(
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Clock::to_duration(steady_clock::now().time_since_epoch()));
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} else {
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return Clock::time_point(
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Clock::to_duration(high_resolution_clock::now().time_since_epoch()));
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}
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}
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std::chrono::seconds GetWallTimeSinceUnixEpoch() noexcept {
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// C++20 guarantees that system_clock uses the Unix Epoch (1970-01-01).
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// Use floor to truncate sub-second precision safely.
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return std::chrono::floor<std::chrono::seconds>(
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std::chrono::system_clock::now().time_since_epoch());
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}
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} // namespace openscreen
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