tencent cloud

TRTCCloudDef.TRTCTranscodingConfig config = new TRTCCloudDef.TRTCTranscodingConfig();
// Set the resolution to 720 x 1280 px, bitrate to 1500 Kbps, and frame rate to 20 FPS
config.videoWidth      = 720;
config.videoHeight     = 1280;
config.videoBitrate    = 1500;
config.videoFramerate  = 20;
config.videoGOP        = 2;
config.audioSampleRate = 48000;
config.audioBitrate    = 64;
config.audioChannels   = 2;

// Use the preset layout mode
config.mode = TRTCCloudDef.TRTC_TranscodingConfigMode_Template_PresetLayout;
config.mixUsers = new ArrayList<>();

// Position of the camera image of the anchor
TRTCCloudDef.TRTCMixUser local = new TRTCCloudDef.TRTCMixUser();
local.userId = "$PLACE_HOLDER_LOCAL_MAIN$";
local.zOrder = 0;   // When `zOrder` is set to `0`, it indicates that the anchor's image is displayed at the bottom
local.x      = 0;
local.y      = 0;
local.width  = videoWidth;
local.height = videoHeight;
local.roomId = null; // Required for remote users but not for the local user
config.mixUsers.add(local);

// Image position of co-anchor
TRTCCloudDef.TRTCMixUser remote1 = new TRTCCloudDef.TRTCMixUser();
remote1.userId = "$PLACE_HOLDER_REMOTE$";
remote1.zOrder = 1;
remote1.x      = 400; // For reference only
remote1.y      = 800; // For reference only
remote1.width  = 180; // For reference only
remote1.height = 240; // For reference only
remote1.roomId = 97392; // Required for remote users but not for the local user
config.mixUsers.add(remote1);

// Image position of co-anchor
TRTCCloudDef.TRTCMixUser remote2 = new TRTCCloudDef.TRTCMixUser();
remote2.userId = "$PLACE_HOLDER_REMOTE$";
remote2.zOrder = 1;
remote1.x      = 400; // For reference only
remote1.y      = 500; // For reference only
remote1.width  = 180; // For reference only
remote1.height = 240; // For reference only
remote1.roomId = 97393; // Required for remote users but not for the local user
config.mixUsers.add(remote2);

// Enable On-Cloud MixTranscoding.
trtc.setMixTranscodingConfig(config);


TRTCTranscodingConfig config;
// Set the resolution to 720 x 1280 px, bitrate to 1500 Kbps, and frame rate to 20 FPS
config.videoWidth      = 1280;
config.videoHeight     = 720;
config.videoBitrate    = 1500;
config.videoFramerate  = 20;
config.videoGOP        = 2;
config.audioSampleRate = 48000;
config.audioBitrate    = 64;
config.audioChannels   = 2;

// Use the preset layout mode
config.mode == TRTCTranscodingConfigMode_Template_PresetLayout
TRTCMixUser* mixUsersArray = new TRTCMixUser[3];
mixUsersArray[0].userId      = "$PLACE_HOLDER_LOCAL_MAIN$";
mixUsersArray[0].zOrder      = 0; // When `zOrder` is set to `0`, it indicates that the anchor's image is displayed at the bottom.
mixUsersArray[0].rect.left   = 0;
mixUsersArray[0].rect.top    = 0;    
mixUsersArray[0].rect.right  = videoWidth;
mixUsersArray[0].rect.bottom = videoHeight;
mixUsersArray[0].roomId      = nullptr; // Required for remote users but not for the local user

mixUsersArray[1].userId      = "$PLACE_HOLDER_REMOTE$";
mixUsersArray[1].zOrder      = 1;
mixUsersArray[1].rect.left   = 400; // For reference only
mixUsersArray[1].rect.top    = 800; // For reference only
mixUsersArray[1].rect.right  = 180; // For reference only
mixUsersArray[1].rect.bottom = 240; // For reference only
mixUsersArray[1].roomId      = 97392; // Required for remote users but not for the local user

mixUsersArray[2].userId      = "$PLACE_HOLDER_REMOTE$";
mixUsersArray[2].zOrder      = 1;
mixUsersArray[2].rect.left   = 400; // For reference only
mixUsersArray[2].rect.top    = 500; // For reference only   
mixUsersArray[2].rect.right  = 180; // For reference only
mixUsersArray[2].rect.bottom = 240; // For reference only
mixUsersArray[2].roomId      = 97393; // Required for remote users but not for the local user
config.mixUsersArray = mixUsersArray;

// Enable On-Cloud MixTranscoding
trtc->setMixTranscodingConfig(&config);


TRTCTranscodingConfig config = new TRTCTranscodingConfig();
// Set the resolution to 720 x 1280 px, bitrate to 1500 Kbps, and frame rate to 20 FPS
config.videoWidth      = 1280;
config.videoHeight     = 720;
config.videoBitrate    = 1500;
config.videoFramerate  = 20;
config.videoGOP        = 2;
config.audioSampleRate = 48000;
config.audioBitrate    = 64;
config.audioChannels   = 2;
config.mode = RTCTranscodingConfigMode.TRTCTranscodingConfigMode_Template_PresetLayout;
TRTCMixUser[] mixUsersArray = new TRTCMixUser[3];

// Position of the camera image of the anchor
TRTCMixUser local = new TRTCMixUser();
local.userId = "$PLACE_HOLDER_LOCAL_MAIN$";
local.zOrder = 0; // When `zOrder` is set to `0`, it indicates that the anchor's image is displayed at the bottom.
local.roomId = null; // Required for remote users but not for the local user
RECT rtLocal = new RECT() {
    left   = 0, 
    top    = 0,
    right  = videoWidth,
    bottom = videoHeight
};
local.rect = rtLocal;
mixUsersArray[0] = local;

// Image position of co-anchor
TRTCMixUser remote1 = new TRTCMixUser();
remote1.userId = "$PLACE_HOLDER_REMOTE$";
remote1.zOrder = 1;
remote1.roomID = 97392; // Required for remote users but not for the local user
RECT rtRemote1 = new RECT() { // For reference only
    left   = 420,
    top    = 81,
    right  = 240 + left,
    bottom = 240 + top
};
remote1.rect = rtRemote1;
mixUsersArray[1] = remote1;

// Image position of co-anchor
TRTCMixUser remote2 = new TRTCMixUser();
remote2.userId = "$PLACE_HOLDER_REMOTE$";
remote2.zOrder = 1;
remote2.roomId = 97393; // Required for remote users but not for the local user
RECT rtRemote2 = new RECT() { // For reference only
    left   = 660,
    top    = 400,
    right  = 240 + left,
    bottom = 240 + top
};
rtRemote2.rect   = rtRemote2;
mixUsersArray[2] = remote2;

// Enable On-Cloud MixTranscoding
config.mixUsersArray = mixUsersArray;
trtc.setMixTranscodingConfig(config);


TRTCCloud trtcCloud = await TRTCCloud.sharedInstance();
trtcCloud.setMixTranscodingConfig(TRTCTranscodingConfig(
  appId: 1252463788, // For reference only
  bizId: 3891, // For reference only
  // Set the resolution to 720 x 1280 px, bitrate to 1500 Kbps, and frame rate to 20 FPS
  videoWidth: 720,
  videoHeight: 1280,
  videoBitrate: 1500,
  videoFramerate: 20,
  videoGOP: 2,
  audioSampleRate: 48000,
  audioBitrate: 64,
  audioChannels: 2,

  // Use the preset layout mode
  mode: TRTCCloudDef.TRTC_TranscodingConfigMode_Template_PresetLayout,

  mixUsers: [
  // Position of the camera image of the anchor
    TRTCMixUser(
      userId: "$PLACE_HOLDER_LOCAL_MAIN$",
      roomId: null, // Required for remote users but not for the local user
      zOrder: 0, // When `zOrder` is set to `0`, it indicates that the anchor's image is displayed at the bottom
      x: 0, // For reference only
      y: 0,
      streamType: 0,
      width: 300,
      height: 400),
    TRTCMixUser(
      userId: '$PLACE_HOLDER_REMOTE$',
      roomId: '256', // Required for remote users but not for the local user
      zOrder: 1,
      x: 100, // For reference only
      y: 100,
      streamType: 0,
      width: 160,
      height: 200)
  ],
));


try {
  // Present layout mode
  const config = {
   mode: 'preset-layout',
   videoWidth: 720,
   videoHeight: 1280,
   videoBitrate: 1500,
   videoFramerate: 20,
   videoGOP: 2,
   audioSampleRate: 48000,
   audioBitrate: 64,
   audioChannels: 2,
   // Preset the positions of the local camera stream and two remote streams.
   mixUsers: [
      {
        width: 720,
        height: 1280,
        locationX: 0,
        locationY: 0,
        pureAudio: false,
        userId: 'jack', // Placeholder for the local camera stream. Pass in the `userId` of the user whose camera stream is pushed.
        zOrder: 1
      },
      {
        width: 180,
        height: 240,
        locationX: 400,
        locationY: 800,
        pureAudio: false,
        userId: '$PLACE_HOLDER_REMOTE$', // Placeholder for a remote image
        zOrder: 2
      },
      {
        width: 180,
        height: 240,
        locationX: 400,
        locationY: 500,
        pureAudio: false,
        userId: '$PLACE_HOLDER_REMOTE$', // Placeholder for a remote image
        zOrder: 2
      }
    ];
  }
  await client.startMixTranscode(config);
} catch (error) {
  console.error('startMixTranscode failed ', error);
}