blob: 2918b0634f61e27f2ff4b7ddcf647237155239ce [file] [log] [blame]
* Copyright (c) 2015 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.
// This file contains the declaration of the VP9 packetizer class.
// A packetizer object is created for each encoded video frame. The
// constructor is called with the payload data and size.
// After creating the packetizer, the method NextPacket is called
// repeatedly to get all packets for the frame. The method returns
// false as long as there are more packets left to fetch.
#include <stddef.h>
#include <stdint.h>
#include <vector>
#include "api/array_view.h"
#include "modules/rtp_rtcp/source/rtp_format.h"
#include "modules/rtp_rtcp/source/rtp_packet_to_send.h"
#include "modules/video_coding/codecs/vp9/include/vp9_globals.h"
#include "rtc_base/constructor_magic.h"
namespace webrtc {
class RtpPacketizerVp9 : public RtpPacketizer {
// The |payload| must be one encoded VP9 layer frame.
RtpPacketizerVp9(rtc::ArrayView<const uint8_t> payload,
PayloadSizeLimits limits,
const RTPVideoHeaderVP9& hdr);
~RtpPacketizerVp9() override;
size_t NumPackets() const override;
// Gets the next payload with VP9 payload header.
// Write payload and set marker bit of the |packet|.
// Returns true on success, false otherwise.
bool NextPacket(RtpPacketToSend* packet) override;
// Writes the payload descriptor header.
// |layer_begin| and |layer_end| indicates the postision of the packet in
// the layer frame. Returns false on failure.
bool WriteHeader(bool layer_begin,
bool layer_end,
rtc::ArrayView<uint8_t> rtp_payload) const;
const RTPVideoHeaderVP9 hdr_;
const int header_size_;
const int first_packet_extra_header_size_;
rtc::ArrayView<const uint8_t> remaining_payload_;
std::vector<int> payload_sizes_;
std::vector<int>::const_iterator current_packet_;
class RtpDepacketizerVp9 : public RtpDepacketizer {
~RtpDepacketizerVp9() override = default;
bool Parse(ParsedPayload* parsed_payload,
const uint8_t* payload,
size_t payload_length) override;
} // namespace webrtc