Add rtp module

src/media/video/encode/nvcodec/nv_encoder.cpp

@@ -79,7 +79,7 @@ int VideoEncoder::Encode(const uint8_t *pData, int nSize) {
     return -1;
   }
 
-  if (0 == seq_++ % (30)) {
+  if (0 == seq_++ % (30 * 5)) {
     ForceIdr();
   }
 

src/pc/peer_connection.cpp

@@ -254,6 +254,7 @@ int PeerConnection::SendVideoData(const char *data, size_t size) {
 
 int PeerConnection::OnEncodedImage(char *encoded_packets, size_t size) {
   for (auto ice_trans : ice_transmission_list_) {
+    LOG_ERROR("H264 frame size: [{}]", size);
     ice_trans.second->SendData(encoded_packets, size);
   }
 

src/rtp/rtp_packet.cpp

@@ -0,0 +1,49 @@
+#include "rtp_packet.h"
+
+#include <string>
+//  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
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |V=2|P|X|  CC   |M|     PT      |       sequence number         |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |                           timestamp                           |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |           synchronization source (SSRC) identifier            |
+// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+// |            Contributing source (CSRC) identifiers             |
+// |                             ....                              |
+// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+// |  header eXtension profile id  |       length in 32bits        |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |                          Extensions                           |
+// |                             ....                              |
+// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+// |                           Payload                             |
+// |             ....              :  padding...                   |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |               padding         | Padding size  |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+RtpPacket::RtpPacket(const uint8_t *buffer, size_t size) {
+  if (size > 0) {
+    payload_ = new uint8_t[size];
+    memcpy(payload_, buffer, size);
+    payload_size_ = size;
+  }
+}
+
+RtpPacket::RtpPacket(const RtpPacket &rhs) {
+  if (rhs.payload_size_ > 0) {
+    payload_ = new uint8_t[rhs.payload_size_];
+    memcpy(payload_, rhs.payload_, rhs.payload_size_);
+    payload_size_ = rhs.payload_size_;
+  }
+}
+
+RtpPacket::~RtpPacket() {
+  if (payload_) {
+    delete payload_;
+    payload_ = nullptr;
+  }
+  payload_size_ = 0;
+}

src/rtp/rtp_packet.h

@@ -0,0 +1,100 @@
+#ifndef _RTP_PACKET_H_
+#define _RTP_PACKET_H_
+
+#include <cstring>
+#include <vector>
+
+//  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
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |V=2|P|X|  CC   |M|     PT      |       sequence number         |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |                           timestamp                           |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |           synchronization source (SSRC) identifier            |
+// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+// |            Contributing source (CSRC) identifiers             |
+// |                             ....                              |
+// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+// |  header eXtension profile id  |       length in 32bits        |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |                          Extensions                           |
+// |                             ....                              |
+// +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
+// |                           Payload                             |
+// |             ....              :  padding...                   |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+// |               padding         | Padding size  |
+// +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+class RtpPacket {
+ public:
+  RtpPacket(const uint8_t *buffer, size_t size);
+  RtpPacket(const RtpPacket &rhs);
+  RtpPacket() {}
+
+  ~RtpPacket();
+
+ public:
+  // Header
+  void SetMarker(bool marker) { marker_ = marker; }
+  void SetPayloadType(uint8_t payload_type) { payload_type_ = payload_type; }
+  void SetSequenceNumber(uint16_t sequence_number) {
+    sequence_number_ = sequence_number;
+  }
+  void SetTimestamp(uint32_t timestamp) { timestamp_ = timestamp; }
+  void SetSsrc(uint32_t ssrc) { ssrc_ = ssrc; }
+  void SetCsrcs(){};
+  void SetHeadersSize(size_t payload_offset) {
+    payload_offset_ = payload_offset;
+  }
+  void SetHasExtension(bool has_extension) { has_extension_ = has_extension; };
+  void SetExtensionID(uint16_t extension_id) { extension_id_ = extension_id; }
+  void SetExtensionData(uint8_t *extension_data) {
+    extension_data_ = extension_data;
+  }
+
+  // Payload
+  void SetPayload(uint8_t *payload) {
+    payload_ = new uint8_t[payload_size_];
+    memcpy(payload_, payload, payload_size_);
+  };
+  void SetPayloadSize(size_t payload_size) { payload_size_ = payload_size; };
+  void SetPaddingSize(size_t padding_size) { padding_size_ = padding_size; }
+
+  // Header
+  bool Marker() const { return marker_; }
+  uint8_t PayloadType() const { return payload_type_; }
+  uint16_t SequenceNumber() const { return sequence_number_; }
+  uint32_t Timestamp() const { return timestamp_; }
+  uint32_t Ssrc() const { return ssrc_; }
+  std::vector<uint32_t> Csrcs() const;
+  size_t HeadersSize() const { return payload_offset_; }
+  bool HasExtension() const { return has_extension_; };
+  uint16_t ExtensionID() const { return extension_id_; }
+  uint8_t *ExtensionData() const { return extension_data_; }
+
+  // Payload
+  uint8_t *Payload() const { return payload_; };
+  size_t PayloadSize() const { return payload_size_; }
+  size_t PaddingSize() const { return padding_size_; }
+
+ private:
+  // Header
+  bool marker_ = false;
+  uint8_t payload_type_ = 0;
+  uint16_t sequence_number_ = 0;
+  uint32_t timestamp_ = 0;
+  uint32_t ssrc_ = 0;
+  size_t payload_offset_ = 0;
+  bool has_extension_ = false;
+  uint16_t extension_id_ = 0;
+  uint8_t *extension_data_ = nullptr;
+
+  // Payload
+  uint8_t *payload_ = nullptr;
+  size_t payload_size_ = 0;
+  uint8_t padding_size_;
+};
+
+#endif