breadcast/breadcast-caststream-sys/vendor/openscreen/util/simple_fraction.cc
Breadway 8c745d18e0
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Implement Cast Streaming mirroring, DLNA casting, daemon+GUI, and breadd integration
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.
2026-08-03 09:07:21 +08:00

52 lines
1.3 KiB
C++

// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "util/simple_fraction.h"
#include <cmath>
#include <limits>
#include <string>
#include <vector>
#include "util/osp_logging.h"
#include "util/string_parse.h"
#include "util/string_util.h"
#include "util/stringprintf.h"
namespace openscreen {
// static
ErrorOr<SimpleFraction> SimpleFraction::FromString(std::string_view value) {
if (value.size() > 0 && value.at(0) == '/') {
return Error::Code::kParameterInvalid;
}
std::vector<std::string_view> fields = string_util::Split(value, '/');
if (fields.size() != 1 && fields.size() != 2) {
return Error::Code::kParameterInvalid;
}
int numerator;
int denominator = 1;
if (!string_parse::ParseAsciiNumber(fields[0], numerator)) {
return Error::Code::kParameterInvalid;
}
if (fields.size() == 2) {
if (!string_parse::ParseAsciiNumber(fields[1], denominator)) {
return Error::Code::kParameterInvalid;
}
}
return SimpleFraction(numerator, denominator);
}
std::string SimpleFraction::ToString() const {
if (denominator_ == 1) {
return std::to_string(numerator_);
}
return StringFormat("{}/{}", numerator_, denominator_);
}
} // namespace openscreen