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: h720p_w1280p

  • The video resolutions listed below are common encoder configuration options supported across All Platforms.

Encoder Config	Resolution	Frame Rate	Optimized (kbps)	Balanced (kbps)	High Quality (kbps)
h144p_w192p	192x144	15 fps	60	100	150
h240p_w320p	320x240	15 fps	120	200	350
h480p_w640p	640x480	25 fps	300	500	750
h720p_w960p	960x720	30 fps	800	1200	1600
h1080p_w1440p	1440x1080	30 fps	1600	2200	2700
h360p_w640p	640x360	20 fps	200	400	600
h720p_w1280p	1280x720	30 fps	1000	1500	2000
h1080p_w1440p	1280x720	30 fps	1600	2300	2700

• The video resolutions listed below are additional encoder configuration options available specifically for Web applications.

Encoder Config	Resolution	Frame Rate	Optimized (kbps)	Balanced (kbps)	High Quality (kbps)
h120p_w160p	160x120	15 fps	60	100	150
h180p_w240p	240x180	15 fps	100	150	250
h360p_w480p	480x360	20 fps	200	400	600
h540p_w720p	720×540	30 fps	350	650	800
h1440p_w1920p	1920×1440	30 fps	3500	4000	4500
h180p_w320p	320x180	15 fps	100	150	250
h216p_w384p	384x216	15 fps	120	200	350
h540p_w960p	960x540	25 fps	400	600	800
h1440p_w2560p	2560x1440	30 fps	5000	5500	6000
h2160p_w3840p	3840x2160	30 fps	8000	8500	9000

important

The below encoder configurations can also be used in mobile applications (Android and iOS). However, the actual video resolution may differ from the requested value due to device and hardware limitations. To obtain the exact resolution being used, refer to the supported video tracks available on the mobile application.

note

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

• facingMode:

  • type: FacingMode
  • required: false
  • Allowed values : FacingMode.front | FacingMode.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.

caution

MultiStream functionality is not supported in the Firefox browser. VideoSDK will only send one stream for Firefox browsers.

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.h720p_w960p,
      multiStream: true,
      facingMode:"user",
      birtrateMode: BitrateMode.HIGH_QUALITY,
      maxLayers: 2,
    );

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 choose 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);