Custom Video Track - Flutter

• You can create a Video Track using createCameraVideoTrack() method of VideoSDK class.
• This method can be used to create video track using different encoding parameters, camera facing mode, and optimization mode.

Parameters

• cameraId:

  • type: String
  • required: false
  • It will be the id of the camera from which the video should be captured.

• encoderConfig:

  • type: CustomTrackVideoConfig
  • required: false
  • default: h360p_w640p
  • You can chose from the below mentioned list of values for the encoder config.

Encoder Config	Resolution	Frame Rate	Bitrate
h90p_w160p	160x90	15 fps	60000 kbps
h180p_w320p	320x180	15 fps	120000 kbps
h216p_w384p	384x216	15 fps	180000 kbps
h360p_w640p	640x360	20 fps	300000 kbps
h540p_w960p	960x540	25 fps	600000 kbps
h720p_w1280p	1280x720	30 fps	2000000 kbps
h1080p_w1920p	1920x1080	30 fps	3000000 kbps
h1440p_w2560p	2560x1440	30 fps	5000000 kbps
h2160p_w3840p	3840x2160	30 fps	8000000 kbps
h120p_w160p	160x120	15 fps	80000 kbps
h180p_w240p	240x180	15 fps	100000 kbps
h240p_w320p	320x240	15 fps	150000 kbps
h360p_w480p	480x360	20 fps	225000 kbps
h480p_w640p	640x480	25 fps	300000 kbps
h540p_w720p	720x540	30 fps	450000 kbps
h720p_w960p	960x720	30 fps	1500000 kbps
h1080p_w1440p	1440x1080	30 fps	2500000 kbps
h1440p_w1920p	1920x1440	30 fps	3500000 kbps

note

Above mentioned encoder configurations are valid for both, landscape as well as portrait mode.

• facingMode:

  • type: String
  • required: false
  • Allowed values : front | environment
  • It will specify whether to use front or back camera for the video track.

• multiStream

  • type: boolean
  • required: false
  • default: true
  • It will specify if the stream should send multiple resolution layers or single resolution layer.

info

• To learn more about optimizations and best practices for using custom video tracks, follow this guide.
• This parameter is only available from v1.0.9.

Returns

• Future<CustomTrack>

Example

CustomTrack videoTrack = await VideoSDK.createCameraVideoTrack(
      encoderConfig: CustomVideoTrackConfig.h1440p_w1920p,
      multiStream: false,
      facingMode:"user",
    );

Custom Audio Track - Flutter

• You can create a Audio Track using createMicrophoneAudioTrack() method of VideoSDK class.
• This method can be used to create audio track using different encoding parameters and noise cancellation configuration.

Parameters

• microphoneId:

  • type: String
  • required: false
  • It will be the id of the mic from which the audio should be captured.

• encoderConfig:

  • type: CustomTrackAudioConfig
  • required: false
  • default: speech_standard
  • You can chose from the below mentioned list of values for the encoder config.

Encoder Config	Bitrate	Auto Gain	Echo Cancellation	Noise Suppression
speech_low_quality	16 kbps	TRUE	TRUE	TRUE
speech_standard	24 kbps	TRUE	TRUE	TRUE
music_standard	32 kbps	FALSE	FALSE	FALSE
standard_stereo	64 kbps	FALSE	FALSE	FALSE
high_quality	128 kbps	FALSE	FALSE	FALSE
high_quality_stereo	192 kbps	FALSE	FALSE	FALSE

• noiseConfig

  • echoCancellation

    • type: boolean
    • required: false
    • If true echo cancellation will turned on else it would be turned off.

  • autoGainControl

    • type: boolean
    • required: false
    • If true auto gain will turned on else it would be turned off.

  • noiseSuppression

    • type: boolean
    • required: false
    • If true noise suppression will turned on else it would be turned off.

Returns

• Future<CustomTrack>

Example

CustomTrack audioTrack = await VideoSDK.createMicrophoneAudioTrack(
        encoderConfig: CustomAudioTrackConfig.high_quality);