java - 在导入 org.webrtc.audio.LegacyAudioDeviceModule 中找不到类 LegacyAudioDeviceModule 错误中的符号；

Question

我刚刚导入了该项目，并且在 gradle build 期间它显示以下错误:

error: cannot find symbol
import org.webrtc.audio.LegacyAudioDeviceModule;
                       ^
  symbol:   class LegacyAudioDeviceModule     

我看过这些文件:



我无法在图片中看到 LegacyAudioDeviceModule。我认为这个丢失的文件导致我的应用程序出错。我该如何解决这个错误？我是 android studio 初学者，对它了解不多。

    AudioDeviceModule createLegacyAudioDevice() {
        // Enable/disable OpenSL ES playback.
        if (!peerConnectionParameters.useOpenSLES) {
            Log.d(TAG, "Disable OpenSL ES audio even if device supports it");
            WebRtcAudioManager.setBlacklistDeviceForOpenSLESUsage(true /* enable */);
        } else {
            Log.d(TAG, "Allow OpenSL ES audio if device supports it");
            WebRtcAudioManager.setBlacklistDeviceForOpenSLESUsage(false);
        }

        if (peerConnectionParameters.disableBuiltInAEC) {
            Log.d(TAG, "Disable built-in AEC even if device supports it");
            WebRtcAudioUtils.setWebRtcBasedAcousticEchoCanceler(true);
        } else {
            Log.d(TAG, "Enable built-in AEC if device supports it");
            WebRtcAudioUtils.setWebRtcBasedAcousticEchoCanceler(false);
        }

        if (peerConnectionParameters.disableBuiltInNS) {
            Log.d(TAG, "Disable built-in NS even if device supports it");
            WebRtcAudioUtils.setWebRtcBasedNoiseSuppressor(true);
        } else {
            Log.d(TAG, "Enable built-in NS if device supports it");
            WebRtcAudioUtils.setWebRtcBasedNoiseSuppressor(false);
        }

        WebRtcAudioTrack.setErrorCallback(new WebRtcAudioTrack.ErrorCallback() {
            @Override
            public void onWebRtcAudioTrackInitError(String errorMessage) {
                Log.e(TAG, "onWebRtcAudioTrackInitError: " + errorMessage);
                reportError(errorMessage);
            }

            @Override
            public void onWebRtcAudioTrackStartError(
                    WebRtcAudioTrack.AudioTrackStartErrorCode errorCode, String errorMessage) {
                Log.e(TAG, "onWebRtcAudioTrackStartError: " + errorCode + ". " + errorMessage);
                reportError(errorMessage);
            }

            @Override
            public void onWebRtcAudioTrackError(String errorMessage) {
                Log.e(TAG, "onWebRtcAudioTrackError: " + errorMessage);
                reportError(errorMessage);
            }
        });

        return new LegacyAudioDeviceModule();
    }

    AudioDeviceModule createJavaAudioDevice() {
        // Enable/disable OpenSL ES playback.
        if (!peerConnectionParameters.useOpenSLES) {
            Log.w(TAG, "External OpenSLES ADM not implemented yet.");
            // TODO(magjed): Add support for external OpenSLES ADM.
        }

        JavaAudioDeviceModule.AudioTrackErrorCallback audioTrackErrorCallback = new JavaAudioDeviceModule.AudioTrackErrorCallback() {
            @Override
            public void onWebRtcAudioTrackInitError(String errorMessage) {
                Log.e(TAG, "onWebRtcAudioTrackInitError: " + errorMessage);
                reportError(errorMessage);
            }

            @Override
            public void onWebRtcAudioTrackStartError(
                    JavaAudioDeviceModule.AudioTrackStartErrorCode errorCode, String errorMessage) {
                Log.e(TAG, "onWebRtcAudioTrackStartError: " + errorCode + ". " + errorMessage);
                reportError(errorMessage);
            }

            @Override
            public void onWebRtcAudioTrackError(String errorMessage) {
                Log.e(TAG, "onWebRtcAudioTrackError: " + errorMessage);
                reportError(errorMessage);
            }
        };
        Log.v(TAG, "disableBuiltInAEC="+!peerConnectionParameters.disableBuiltInAEC);
        Log.v(TAG, "disableBuiltInNS="+!peerConnectionParameters.disableBuiltInNS);
        return JavaAudioDeviceModule.builder(appContext)
                .setUseHardwareAcousticEchoCanceler(!peerConnectionParameters.disableBuiltInAEC)
                .setUseHardwareNoiseSuppressor(!peerConnectionParameters.disableBuiltInNS)
                .setAudioTrackErrorCallback(audioTrackErrorCallback)
                .createAudioDeviceModule();
    }

    private void createMediaConstraintsInternal() {
        // Create video constraints if video call is enabled.
        if (isVideoCallEnabled()) {
            videoWidth = peerConnectionParameters.videoWidth;
            videoHeight = peerConnectionParameters.videoHeight;
            videoFps = peerConnectionParameters.videoFps;

            // If video resolution is not specified, default to HD.
            if (videoWidth == 0 || videoHeight == 0) {
                videoWidth = HD_VIDEO_WIDTH;
                videoHeight = HD_VIDEO_HEIGHT;
            }

            // If fps is not specified, default to 30.
            if (videoFps == 0) {
                videoFps = 30;
            }
            Logging.d(TAG, "Capturing format: " + videoWidth + "x" + videoHeight + "@" + videoFps);
        }

        // Create audio constraints.
        audioConstraints = new MediaConstraints();
        // added for audio performance measurements
        if (peerConnectionParameters.noAudioProcessing) {
            Log.d(TAG, "Disabling audio processing");
            audioConstraints.mandatory.add(
                    new MediaConstraints.KeyValuePair(AUDIO_ECHO_CANCELLATION_CONSTRAINT, "false"));
            audioConstraints.mandatory.add(
                    new MediaConstraints.KeyValuePair(AUDIO_AUTO_GAIN_CONTROL_CONSTRAINT, "false"));
            audioConstraints.mandatory.add(
                    new MediaConstraints.KeyValuePair(AUDIO_HIGH_PASS_FILTER_CONSTRAINT, "false"));
            audioConstraints.mandatory.add(
                    new MediaConstraints.KeyValuePair(AUDIO_NOISE_SUPPRESSION_CONSTRAINT, "false"));
        }
        // Create SDP constraints.
        sdpMediaConstraints = new MediaConstraints();
        sdpMediaConstraints.mandatory.add(
                new MediaConstraints.KeyValuePair("OfferToReceiveAudio", "true"));
        sdpMediaConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
                "OfferToReceiveVideo", Boolean.toString(isVideoCallEnabled())));
    }

Answer 1

为什么要导入 LegacyAudioDeviceModule。显然它已被删除，现在看来您需要使用 JavaAudioDeviceModule

import org.webrtc.audio.JavaAudioDeviceModule;