libjingle
The WebRTC project reuses certain components from libjingle, namely network and transport components. Documentation for libjingle can be found here.
Media Processing Classes, Structures and Enumerators
Note that, all methods, structures and enumerators in this document are declared within the webrtc namespace.
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Classes, Structures, Enumerators
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Header
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Description
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Structures
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common_types.h
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Lists the structures common to the VoiceEngine & VideoEngine
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Enumerators
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common_types.h
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List the enumerators common to the VoiceEngine & VideoEngine
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Classes
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common_types.h
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List the classes common to VoiceEngine & VideoEngine
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class VoiceEngine
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voe_base.h
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How to allocate and release resources for the VoiceEngine using factory methods in the VoiceEngine class. It also lists the APIs
which are required to enable file tracing and/or traces as callback messages
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class VideoEngine
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vie_base.h
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How to allocate and release resources for the VideoEngine using factory methods in the VideoEngine class. It also lists the APIs
which are required to enable file tracing and/or traces as callback messages
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VoiceEngine Sub APIs
The table below summarizes the sub APIs that are currently available in VoiceEngine.
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sub-API
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Header
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Description
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VoEAudioProcessing
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voe_audio_processing.h
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Adds support for Noise Suppression (NS), Automatic Gain Control (AGC) and Echo Control (EC). Receiving side VAD is also included.
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VoEBase
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voe_base.h
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Enables full duplex VoIP using G.711.
NOTE: This API must always be created.
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VoECallReport
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voe_call_report.h
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Adds support for call reports which contains number of dead-or-alive detections, RTT measurements, and Echo metrics.
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VoECodec
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voe_codec.h
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Adds non-default codecs (e.g. iLBC, iSAC, G.722 etc.), Voice Activity Detection (VAD) support.
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VoEDTMF
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voe_dtmf.h
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Adds telephone event transmission, DTMF tone generation and telephone event detection. (Telephone events include DTMF.)
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VoEEncryption
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voe_encryption.h
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Adds external encryption/decryption support.
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VoEErrors
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voe_errors.h
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Error Codes for the VoiceEngine
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VoEExternalMedia
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voe_external_media.h
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Adds support for external media processing and enables utilization of an external audio resource.
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VoEFile
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voe_file.h
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Adds file playback, file recording and file conversion functions.
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VoEHardware
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voe_hardware.h
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Adds sound device handling, CPU load monitoring and device information functions.
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VoENetEqStats
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voe_neteq_stats.h
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Adds buffer statistics functions.
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VoENetwork
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voe_network.h
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Adds external transport, port and address filtering, Windows QoS support and packet timeout notifications.
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VoERTP_RTCP
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voe_rtp_rtcp.h
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Adds support for RTCP sender reports, SSRC handling, RTP/RTCP statistics, Forward Error Correction (FEC), RTCP APP, RTP capturing and RTP keepalive.
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VoEVideoSync
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voe_video_sync.h
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Adds RTP header modification support, playout-delay tuning and monitoring.
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VoEVolumeControl
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voe_volume_control.h
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Adds speaker volume controls, microphone volume controls, mute support, and additional stereo scaling methods.
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VideoEngine Sub APIs
The table below summarizes the sub APIs that are currently available in VideoEngine.
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sub-API
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Header
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Description
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ViEBase
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vie_base.h
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Basic functionality for creating a VideoEngine instance, channels and VoiceEngine interaction.
NOTE: This API must always be created.
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ViECapture
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vie_capture.h
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Adds support for capture device allocation as well as capture device capabilities.
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ViECodec
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vie_codec.h
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Adds non-default codecs, codec settings and packet loss functionality.
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ViEEncryption
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vie_encryption.h
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Adds external encryption/decryption support.
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ViEErrors
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vie_errors.h
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Error codes for the VideoEngine
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ViEExternalCodec
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vie_external_codec.h
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Adds support for using external codecs.
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ViEFile
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vie_file.h
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Adds support for file recording, file playout, background images and snapshot.
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ViEImageProcess
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vie_image_process.h
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Adds effect filters, deflickering, denoising and color enhancement.
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ViENetwork
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vie_network.h
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Adds send and receive functionality, external transport, port and address filtering, Windows QoS support, packet
timeout notification and changes to network settings.
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ViERender
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vie_render.h
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Adds rendering functionality.
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ViERTP_RTCP
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vie_rtp_rtcp.h
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Adds support for RTCP reports, SSRS handling RTP/RTCP statistics, NACK/FEC, keep-alive functionality and key frame
request methods.
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