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标题: 矩阵碰一碰发视频的源码技术,支持OME [打印本页]

作者: 宁睿    时间: 2025-2-21 13:53
标题: 矩阵碰一碰发视频的源码技术,支持OME
引言

在当下移动互联的快节奏期间,信息分享的便捷性与创新性始终是技术发展的紧张驱动力。“矩阵碰一碰发视频” 这一新兴功能,将传统碰一碰技术与矩阵式装备交互理念相结合,为视频分享带来了全新体验。它允许用户在多个装备构成的矩阵中,通过简朴的触碰操纵,快速、高效地发送视频,极大地提升了分享效率。本文将深入分析这一功能背后的技术开发过程,从原理到源码实现,为开发者提供全面的技术指南。

技术原理

矩阵式装备交互基础

矩阵碰一碰发视频依赖于多装备之间的协同工作。在一个矩阵环境中,装备被划分为发送端和吸收端。发送端装备负责发起视频分享请求,吸收端装备则准备吸收视频数据。这些装备通过特定的通信协议进行连接,构建起一个暂时的通信网络。

碰一碰触发机制

该功能利用近场通信(NFC)或蓝牙低功耗(BLE)技术实现碰一碰触发。当两个装备靠近时,NFC 或 BLE 信号被激活,装备之间进行握手通信,确认相互身份和通信本领。一旦连接建立,发送端装备将视频文件信息封装成特定的数据格式,并通过已建立的通信链路发送给吸收端装备。
视频传输与处理

视频数据在传输过程中,通常会被分割成多个数据块,以适应差别的网络环境和装备性能。吸收端装备在吸收到数据块后,按照序次进行重组,并对数据进行校验,确保视频文件的完整性。在传输完成后,吸收端装备根据视频文件格式进行解码,终极出现给用户可供播放的视频内容。
开发环境搭建

硬件准备

软件工具



核心代码实现

Android 端代码


  1. [/code] <uses - permission android:name="android.permission.NFC" />
  2. [list]
  3. [*][b]NFC 适配器初始化[/b]:在 Activity 中初始化 NFC 适配器:
  4. [/list] [code]
复制代码
import android.nfc.NfcAdapter;
import android.os.Bundle;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
private NfcAdapter nfcAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
nfcAdapter = NfcAdapter.getDefaultAdapter(this);
if (nfcAdapter == null) {
Toast.makeText(this, "装备不支持NFC", Toast.LENGTH_SHORT).show();
finish();
}
}
}

  1. [/code] import android.content.BroadcastReceiver;
  2. import android.content.Context;
  3. import android.content.Intent;
  4. import android.content.IntentFilter;
  5. import android.nfc.NdefMessage;
  6. import android.nfc.NdefRecord;
  7. import android.nfc.NfcEvent;
  8. import android.os.Bundle;
  9. import android.widget.Toast;
  10. import androidx.appcompat.app.AppCompatActivity;
  11. import java.nio.charset.StandardCharsets;
  12. public class MainActivity extends AppCompatActivity implements NfcAdapter.CreateNdefMessageCallback, NfcAdapter.OnNdefPushCompleteCallback {
  13. private NfcAdapter nfcAdapter;
  14. private static final String MIME_TYPE = "application/com.example.matrixvideoshare";
  15. @Override
  16. protected void onCreate(Bundle savedInstanceState) {
  17. super.onCreate(savedInstanceState);
  18. setContentView(R.layout.activity_main);
  19. nfcAdapter = NfcAdapter.getDefaultAdapter(this);
  20. if (nfcAdapter == null) {
  21. Toast.makeText(this, "装备不支持NFC", Toast.LENGTH_SHORT).show();
  22. finish();
  23. } else {
  24. nfcAdapter.setNdefPushMessageCallback(this, this);
  25. nfcAdapter.setOnNdefPushCompleteCallback(this, this);
  26. }
  27. IntentFilter tagDetected = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
  28. tagDetected.addDataScheme("vnd.android.nfc");
  29. tagDetected.addDataType(MIME_TYPE);
  30. IntentFilter[] filters = new IntentFilter[]{tagDetected};
  31. PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
  32. registerReceiver(new BroadcastReceiver() {
  33. @Override
  34. public void onReceive(Context context, Intent intent) {
  35. processIntent(intent);
  36. }
  37. }, filters, null, pendingIntent);
  38. }
  39. @Override
  40. public NdefMessage createNdefMessage(NfcEvent event) {
  41. String videoFilePath = "path/to/your/video.mp4";
  42. byte[] videoData = getVideoData(videoFilePath);
  43. NdefRecord videoRecord = NdefRecord.createMime(MIME_TYPE, videoData);
  44. NdefRecord appRecord = NdefRecord.createApplicationRecord(getPackageName());
  45. return new NdefMessage(new NdefRecord[]{videoRecord, appRecord});
  46. }
  47. @Override
  48. public void onNdefPushComplete(NfcEvent event) {
  49. runOnUiThread(new Runnable() {
  50. @Override
  51. public void run() {
  52. Toast.makeText(MainActivity.this, "视频发送完成", Toast.LENGTH_SHORT).show();
  53. }
  54. });
  55. }
  56. private byte[] getVideoData(String filePath) {
  57. // 这里需要实现从文件路径读取视频数据的逻辑
  58. // 简朴示例,实际应使用文件读取流
  59. return "示例视频数据".getBytes(StandardCharsets.UTF_8);
  60. }
  61. private void processIntent(Intent intent) {
  62. NdefMessage[] messages = getNdefMessages(intent);
  63. if (messages != null && messages.length > 0) {
  64. NdefMessage message = messages[0];
  65. NdefRecord[] records = message.getRecords();
  66. for (NdefRecord record : records) {
  67. if (MIME_TYPE.equals(record.toMimeType())) {
  68. byte[] videoData = record.getPayload();
  69. // 处理吸收到的视频数据,如保存到当地
  70. saveVideoData(videoData);
  71. }
  72. }
  73. }
  74. }
  75. private NdefMessage[] getNdefMessages(Intent intent) {
  76. NdefMessage[] messages = null;
  77. Object[] rawMsgs = (Object[]) intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
  78. if (rawMsgs != null) {
  79. messages = new NdefMessage[rawMsgs.length];
  80. for (int i = 0; i < rawMsgs.length; i++) {
  81. messages[i] = (NdefMessage) rawMsgs[i];
  82. }
  83. }
  84. return messages;
  85. }
  86. private void saveVideoData(byte[] data) {
  87. // 实现将吸收到的视频数据保存到当地的逻辑
  88. Toast.makeText(this, "视频吸收成功", Toast.LENGTH_SHORT).show();
  89. }
  90. }
  91. [list=1]
  92. [*][b]BLE 功能实现[/b]
  93. [/list]
  94. [list]
  95. [*]
  96. [list]
  97. [*][b]权限声明[/b]:在AndroidManifest.xml文件中添加蓝牙相干权限:
  98. [/list]
  99. [/list] [code]
复制代码
<uses - permission android:name="android.permission.BLUETOOTH" />
<uses - permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses - permission android:name="android.permission.ACCESS_FINE_LOCATION" />

  1. [/code] import android.bluetooth.BluetoothAdapter;
  2. import android.bluetooth.BluetoothDevice;
  3. import android.bluetooth.BluetoothGatt;
  4. import android.bluetooth.BluetoothGattCharacteristic;
  5. import android.bluetooth.BluetoothGattService;
  6. import android.bluetooth.BluetoothManager;
  7. import android.bluetooth.le.BluetoothLeScanner;
  8. import android.bluetooth.le.ScanCallback;
  9. import android.bluetooth.le.ScanResult;
  10. import android.content.Context;
  11. import android.os.Bundle;
  12. import android.widget.Toast;
  13. import androidx.appcompat.app.AppCompatActivity;
  14. import java.util.List;
  15. import java.util.UUID;
  16. public class MainActivity extends AppCompatActivity {
  17. private BluetoothAdapter bluetoothAdapter;
  18. private BluetoothGatt bluetoothGatt;
  19. private BluetoothLeScanner bluetoothLeScanner;
  20. @Override
  21. protected void onCreate(Bundle savedInstanceState) {
  22. super.onCreate(savedInstanceState);
  23. setContentView(R.layout.activity_main);
  24. BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
  25. bluetoothAdapter = bluetoothManager.getAdapter();
  26. if (bluetoothAdapter == null) {
  27. Toast.makeText(this, "装备不支持蓝牙", Toast.LENGTH_SHORT).show();
  28. finish();
  29. }
  30. bluetoothLeScanner = bluetoothAdapter.getBluetoothLeScanner();
  31. startScan();
  32. }
  33. private void startScan() {
  34. bluetoothLeScanner.startScan(new ScanCallback() {
  35. @Override
  36. public void onScanResult(int callbackType, ScanResult result) {
  37. BluetoothDevice device = result.getDevice();
  38. // 处理扫描到的装备,这里简朴示例,实际可根据装备名称等筛选
  39. connectDevice(device);
  40. }
  41. @Override
  42. public void onBatchScanResults(List<ScanResult> results) {
  43. super.onBatchScanResults(results);
  44. }
  45. @Override
  46. public void onScanFailed(int errorCode) {
  47. Toast.makeText(MainActivity.this, "扫描失败", Toast.LENGTH_SHORT).show();
  48. }
  49. });
  50. }
  51. private void connectDevice(BluetoothDevice device) {
  52. bluetoothGatt = device.connectGatt(this, false, new BluetoothGatt.Callback() {
  53. @Override
  54. public void onConnectionStateChange(BluetoothGatt gatt, int status) {
  55. if (status == 0) {
  56. gatt.discoverServices();
  57. } else {
  58. Toast.makeText(MainActivity.this, "连接失败", Toast.LENGTH_SHORT).show();
  59. }
  60. }
  61. @Override
  62. public void onServicesDiscovered(BluetoothGatt gatt, int status) {
  63. List<BluetoothGattService> services = gatt.getServices();
  64. for (BluetoothGattService service : services) {
  65. List<BluetoothGattCharacteristic> characteristics = service.getCharacteristics();
  66. for (BluetoothGattCharacteristic characteristic : characteristics) {
  67. // 处理服务和特征,这里简朴示例,实际根据自界说UUID读写数据
  68. UUID uuid = characteristic.getUuid();
  69. }
  70. }
  71. }
  72. });
  73. }
  74. }
  75. [size=3]iOS 端代码[/size]
  76. [list=1]
  77. [*][b]NFC 功能实现[/b]
  78. [/list]
  79. [list]
  80. [*]
  81. [list]
  82. [*][b]导入 Core NFC 框架[/b]:在 Swift 项目中导入 Core NFC 框架:
  83. [/list]
  84. [/list] [code]
复制代码
import CoreNFC

  1. [/code] import UIKit
  2. import CoreNFC
  3. class ViewController: UIViewController, NFCNDEFReaderSessionDelegate {
  4. var session: NFCNDEFReaderSession?
  5. override func viewDidLoad() {
  6. super.viewDidLoad()
  7. if NFCNDEFReaderSession.readingAvailable {
  8. session = NFCNDEFReaderSession(delegate: self, queue: nil, invalidateAfterFirstRead: false)
  9. session?.begin()
  10. } else {
  11. let alert = UIAlertController(title: "NFC不可用", message: "装备不支持NFC读取功能", preferredStyle:.alert)
  12. alert.addAction(UIAlertAction(title: "确定", style:.default, handler: nil))
  13. present(alert, animated: true, completion: nil)
  14. }
  15. }
  16. func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) {
  17. for message in messages {
  18. for record in message.records {
  19. if record.typeNameFormat ==.media && record.type == Data("application/com.example.matrixvideoshare".utf8) {
  20. let videoData = record.payload
  21. // 处理吸收到的视频数据
  22. saveVideoData(data: videoData)
  23. }
  24. }
  25. }
  26. }
  27. func readerSession(_ session: NFCNDEFReaderSession, didInvalidateWithError error: Error) {
  28. print("NFC会话无效: \(error)")
  29. }
  30. func sendVideo() {
  31. let videoFilePath = Bundle.main.path(forResource: "video", ofType: "mp4")
  32. guard let videoData = try? Data(contentsOf: URL(fileURLWithPath: videoFilePath!)) else {
  33. return
  34. }
  35. let videoRecord = NFCNDEFPayload(format:.media, type: "application/com.example.matrixvideoshare".data(using:.utf8)!, identifier: Data(), payload: videoData)
  36. let message = NFCNDEFMessage(records: [videoRecord])
  37. session?.writeNDEF(message) { error in
  38. if let error = error {
  39. print("发送视频失败: \(error)")
  40. } else {
  41. print("视频发送成功")
  42. }
  43. }
  44. }
  45. func saveVideoData(data: Data) {
  46. // 实现将吸收到的视频数据保存到当地的逻辑
  47. print("视频吸收成功")
  48. }
  49. }
  50. [list=1]
  51. [*][b]BLE 功能实现[/b]
  52. [/list]
  53. [list]
  54. [*]
  55. [list]
  56. [*][b]导入 Core Bluetooth 框架[/b]:在 Swift 项目中导入 Core Bluetooth 框架:
  57. [/list]
  58. [/list] [code]
复制代码
import CoreBluetooth

[code][/code] import UIKit
import CoreBluetooth
class ViewController: UIViewController, CBCentralManagerDelegate, CBPeripheralDelegate {
var centralManager: CBCentralManager?
var peripherals: [CBPeripheral] = []
override func viewDidLoad() {
super.viewDidLoad()
centralManager = CBCentralManager(delegate: self, queue: nil)
}
func centralManagerDidUpdateState(_ central: CBCentralManager) {
if central.state ==.poweredOn {
centralManager?.scanForPeripherals(withServices: nil, options: nil)
} else {
let alert = UIAlertController(title: "蓝牙不可用", message: "请打开蓝牙", preferredStyle:.alert)
alert.addAction(UIAlertAction(title: "确定", style:.default, handler: nil))
present(alert, animated: true, completion: nil)
}
}
func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
peripherals.append(peripheral)
peripheral.delegate = self
central.connect(peripheral, options: nil)
}
func centralManager(_ central: CBCentralManager, didConnect peripheral: CBPeripheral) {
peripheral.discoverServices(nil)
}
func peripheral(_ peripheral: CBPeripheral, didDiscoverServices error: Error?) {
if let services = peripheral.services {
for service in services {
peripheral.discoverCharacteristics(nil, for: service)
}
}
}
func peripheral(_ peripheral: CBPeripheral, didDiscoverCharacteristicsFor service: CBService, error: Error?) {
if let characteristics = service.characteristics {
for characteristic in characteristics {
// 处理服务和特征,这里简朴示例,实际根据自界说UUID读写数据
let uuid = characteristic.uuid
}
}
}
}
测试与优化

功能测试

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