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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.
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
// Copyright 2019 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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#ifndef CAST_STREAMING_PUBLIC_SESSION_CONFIG_H_
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#define CAST_STREAMING_PUBLIC_SESSION_CONFIG_H_
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#include <array>
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#include <chrono>
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#include <cstdint>
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#include "cast/streaming/public/constants.h"
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#include "cast/streaming/ssrc.h"
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namespace openscreen::cast {
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// Common streaming configuration, established from the OFFER/ANSWER exchange,
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// that the Sender and Receiver are both assuming.
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struct SessionConfig final {
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SessionConfig(Ssrc sender_ssrc,
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Ssrc receiver_ssrc,
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int rtp_timebase,
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int channels,
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std::chrono::milliseconds target_playout_delay,
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std::array<uint8_t, 16> aes_secret_key,
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std::array<uint8_t, 16> aes_iv_mask,
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bool is_pli_enabled = false,
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StreamType stream_type = StreamType::kUnknown,
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bool are_receiver_event_logs_enabled = true);
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SessionConfig(const SessionConfig& other);
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SessionConfig(SessionConfig&& other) noexcept;
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SessionConfig& operator=(const SessionConfig& other);
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SessionConfig& operator=(SessionConfig&& other) noexcept;
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~SessionConfig();
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bool IsValid() const;
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// The sender and receiver's SSRC identifiers. Note: SSRC identifiers
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// are defined as unsigned 32 bit integers here:
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// https://tools.ietf.org/html/rfc5576#page-5
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Ssrc sender_ssrc = 0;
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Ssrc receiver_ssrc = 0;
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// RTP timebase: The number of RTP units advanced per second. For audio,
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// this is the sampling rate. For video, this is 90 kHz by convention.
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int rtp_timebase = 90000;
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// Number of channels. Must be 1 for video, for audio typically 2.
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int channels = 1;
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// Initial target playout delay.
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std::chrono::milliseconds target_playout_delay;
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// The AES-128 crypto key and initialization vector.
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std::array<uint8_t, 16> aes_secret_key{};
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std::array<uint8_t, 16> aes_iv_mask{};
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// Whether picture loss indication (PLI) should be used for this session.
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bool is_pli_enabled = false;
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// The type (e.g. audio or video) of the stream.
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StreamType stream_type = StreamType::kUnknown;
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// Whether RTCP event logs from the Receiver are enabled. These are used for
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// generating statistics. It is recommended that this generally be true.
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bool are_receiver_event_logs_enabled = true;
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};
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} // namespace openscreen::cast
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#endif // CAST_STREAMING_PUBLIC_SESSION_CONFIG_H_
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