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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_MEDIA_PACKETIZER_H_
#define EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_MEDIA_PACKETIZER_H_
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "extensions/renderer/api/display_source/wifi_display/wifi_display_transport_stream_packetizer.h"
namespace extensions {
// This class represents an RTP datagram packet containing MPEG Transport
// Stream (MPEG-TS) packets as a payload.
class WiFiDisplayMediaDatagramPacket : public std::vector<uint8_t> {
public:
WiFiDisplayMediaDatagramPacket();
WiFiDisplayMediaDatagramPacket(WiFiDisplayMediaDatagramPacket&&);
private:
DISALLOW_COPY_AND_ASSIGN(WiFiDisplayMediaDatagramPacket);
};
// The WiFi Display media packetizer packetizes unit buffers to media datagram
// packets containing MPEG Transport Stream (MPEG-TS) packets containing either
// meta information or Packetized Elementary Stream (PES) packets containing
// unit data.
//
// Whenever a media datagram packet is fully created and thus ready for further
// processing, a callback is called.
class WiFiDisplayMediaPacketizer : public WiFiDisplayTransportStreamPacketizer {
public:
using PacketizedCallback =
base::Callback<bool(WiFiDisplayMediaDatagramPacket)>;
WiFiDisplayMediaPacketizer(
const base::TimeDelta& delay_for_unit_time_stamps,
const std::vector<WiFiDisplayElementaryStreamInfo>& stream_infos,
const PacketizedCallback& on_packetized);
~WiFiDisplayMediaPacketizer() override;
protected:
bool OnPacketizedTransportStreamPacket(
const WiFiDisplayTransportStreamPacket& transport_stream_packet,
bool flush) override;
private:
using SourceIdentifier = uint8_t[4];
WiFiDisplayMediaDatagramPacket media_datagram_packet_;
PacketizedCallback on_packetized_media_datagram_packet_;
uint16_t sequence_number_;
SourceIdentifier synchronization_source_identifier_;
};
} // namespace extensions
#endif // EXTENSIONS_RENDERER_API_DISPLAY_SOURCE_WIFI_DISPLAY_WIFI_DISPLAY_MEDIA_PACKETIZER_H_
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