webrtc/webrtc/modules/rtp_rtcp/source/ulpfec_header_reader_writer.h
kjellander c8fa692ec4 Update includes for webrtc/{base => rtc_base} rename (1/3)
I used a command like this to update the paths:
perl -pi -e "s/webrtc\/base/webrtc\/rtc_base/g" `find webrtc/rtc_base -name "*.cc" -o -name "*.h"`

The only manual edit is to add an include of webrtc/rtc_base/checks.h in
webrtc/modules/audio_device/android/opensles_common.h, which likely
was needed due to changed include paths due to 'git cl format'.

BUG=webrtc:7634
NOTRY=True
NOPRESUBMIT=True

Review-Url: https://codereview.webrtc.org/2969653002
Cr-Commit-Position: refs/heads/master@{#18871}
2017-06-30 21:02:00 +00:00

67 lines
2.7 KiB
C++

/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_ULPFEC_HEADER_READER_WRITER_H_
#define WEBRTC_MODULES_RTP_RTCP_SOURCE_ULPFEC_HEADER_READER_WRITER_H_
#include "webrtc/modules/rtp_rtcp/source/forward_error_correction.h"
#include "webrtc/rtc_base/basictypes.h"
namespace webrtc {
// FEC Level 0 Header, 10 bytes.
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// |E|L|P|X| CC |M| PT recovery | SN base |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | TS recovery |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | length recovery |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
//
// FEC Level 1 Header, 4 bytes (L = 0) or 8 bytes (L = 1).
// 0 1 2 3
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | Protection Length | mask |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
// | mask cont. (present only when L = 1) |
// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
class UlpfecHeaderReader : public FecHeaderReader {
public:
UlpfecHeaderReader();
~UlpfecHeaderReader() override;
bool ReadFecHeader(
ForwardErrorCorrection::ReceivedFecPacket* fec_packet) const override;
};
class UlpfecHeaderWriter : public FecHeaderWriter {
public:
UlpfecHeaderWriter();
~UlpfecHeaderWriter() override;
size_t MinPacketMaskSize(const uint8_t* packet_mask,
size_t packet_mask_size) const override;
size_t FecHeaderSize(size_t packet_mask_row_size) const override;
void FinalizeFecHeader(
uint32_t media_ssrc, // Unused by ULPFEC.
uint16_t seq_num_base,
const uint8_t* packet_mask,
size_t packet_mask_size,
ForwardErrorCorrection::Packet* fec_packet) const override;
};
} // namespace webrtc
#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_ULPFEC_HEADER_READER_WRITER_H_