kopia lustrzana https://github.com/sh123/codec2_talkie
196 wiersze
6.5 KiB
Java
196 wiersze
6.5 KiB
Java
package com.radio.codec2talkie.protocol;
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import android.content.Context;
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import android.content.SharedPreferences;
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import com.radio.codec2talkie.R;
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import com.radio.codec2talkie.protocol.message.TextMessage;
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import com.radio.codec2talkie.protocol.position.Position;
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import com.radio.codec2talkie.settings.PreferenceKeys;
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import com.radio.codec2talkie.tools.AudioTools;
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import com.radio.codec2talkie.transport.Transport;
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import com.ustadmobile.codec2.Codec2;
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import java.io.IOException;
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public class AudioCodec2 implements Protocol {
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private final Protocol _childProtocol;
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private long _codec2Con;
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private int _audioBufferSize;
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private char[] _recordAudioEncodedBuffer;
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private short[] _playbackAudioBuffer;
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private final SharedPreferences _sharedPreferences;
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private ProtocolCallback _parentProtocolCallback;
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public AudioCodec2(Protocol childProtocol, SharedPreferences sharedPreferences) {
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_childProtocol = childProtocol;
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_codec2Con = 0;
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_sharedPreferences = sharedPreferences;
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}
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@Override
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public void initialize(Transport transport, Context context, ProtocolCallback protocolCallback) throws IOException {
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_parentProtocolCallback = protocolCallback;
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_childProtocol.initialize(transport, context, _protocolCallback);
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String codec2ModeName = _sharedPreferences.getString(PreferenceKeys.CODEC2_MODE, context.getResources().getStringArray(R.array.codec2_modes)[0]);
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int codec2ModeId = AudioTools.extractCodec2ModeId(codec2ModeName);
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constructCodec2(codec2ModeId);
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}
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@Override
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public int getPcmAudioRecordBufferSize() {
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return _audioBufferSize;
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}
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@Override
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public void sendCompressedAudio(String src, String dst, int codec2Mode, byte[] frame) throws IOException {
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_childProtocol.sendCompressedAudio(src, dst, codec2Mode, frame);
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}
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@Override
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public void sendTextMessage(TextMessage textMessage) throws IOException {
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_childProtocol.sendTextMessage(textMessage);
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}
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@Override
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public void sendPcmAudio(String src, String dst, int codec2Mode, short[] pcmFrame) throws IOException {
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_parentProtocolCallback.onTransmitPcmAudio(src, dst, codec2Mode, pcmFrame);
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Codec2.encode(_codec2Con, pcmFrame, _recordAudioEncodedBuffer);
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byte [] frame = new byte[_recordAudioEncodedBuffer.length];
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for (int i = 0; i < _recordAudioEncodedBuffer.length; i++) {
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frame[i] = (byte)_recordAudioEncodedBuffer[i];
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}
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_childProtocol.sendCompressedAudio(src, dst, codec2Mode, frame);
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}
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@Override
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public void sendData(String src, String dst, String path, byte[] dataPacket) throws IOException {
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_childProtocol.sendData(src, dst, path, dataPacket);
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}
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@Override
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public boolean receive() throws IOException {
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return _childProtocol.receive();
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}
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ProtocolCallback _protocolCallback = new ProtocolCallback() {
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@Override
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protected void onReceivePosition(Position position) {
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_parentProtocolCallback.onReceivePosition(position);
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}
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@Override
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protected void onReceivePcmAudio(String src, String dst, int codec, short[] pcmFrame) {
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_parentProtocolCallback.onReceivePcmAudio(src, dst, codec, pcmFrame);
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}
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@Override
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protected void onReceiveCompressedAudio(String src, String dst, int codec2Mode, byte[] audioFrame) {
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Codec2.decode(_codec2Con, _playbackAudioBuffer, audioFrame);
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_parentProtocolCallback.onReceivePcmAudio(src, dst, codec2Mode, _playbackAudioBuffer);
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}
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@Override
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protected void onReceiveTextMessage(TextMessage textMessage) {
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_parentProtocolCallback.onReceiveTextMessage(textMessage);
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}
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@Override
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protected void onReceiveData(String src, String dst, String path, byte[] data) {
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_parentProtocolCallback.onReceiveData(src, dst, path, data);
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}
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@Override
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protected void onReceiveSignalLevel(short rssi, short snr) {
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_parentProtocolCallback.onReceiveSignalLevel(rssi, snr);
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}
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@Override
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protected void onReceiveTelemetry(int batVoltage) {
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_parentProtocolCallback.onReceiveTelemetry(batVoltage);
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}
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@Override
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protected void onReceiveLog(String logData) {
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_parentProtocolCallback.onReceiveLog(logData);
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}
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@Override
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protected void onTransmitPcmAudio(String src, String dst, int codec, short[] frame) {
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_parentProtocolCallback.onTransmitPcmAudio(src, dst, codec, frame);
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}
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@Override
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protected void onTransmitCompressedAudio(String src, String dst, int codec, byte[] frame) {
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_parentProtocolCallback.onTransmitCompressedAudio(src, dst, codec, frame);
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}
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@Override
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protected void onTransmitTextMessage(TextMessage textMessage) {
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_parentProtocolCallback.onTransmitTextMessage(textMessage);
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}
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@Override
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protected void onTransmitPosition(Position position) {
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_parentProtocolCallback.onTransmitPosition(position);
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}
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@Override
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protected void onTransmitData(String src, String dst, String path, byte[] data) {
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_parentProtocolCallback.onTransmitData(src, dst, path, data);
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}
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@Override
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protected void onTransmitLog(String logData) {
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_parentProtocolCallback.onTransmitLog(logData);
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}
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@Override
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protected void onProtocolRxError() {
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_parentProtocolCallback.onProtocolRxError();
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}
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@Override
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protected void onProtocolTxError() {
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_parentProtocolCallback.onProtocolTxError();
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}
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};
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@Override
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public void sendPosition(Position position) throws IOException {
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_childProtocol.sendPosition(position);
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}
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@Override
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public void flush() throws IOException {
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_childProtocol.flush();
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}
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@Override
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public void close() {
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Codec2.destroy(_codec2Con);
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_childProtocol.close();
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}
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private void constructCodec2(int codecMode) {
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if (_codec2Con != 0) {
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Codec2.destroy(_codec2Con);
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}
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_codec2Con = Codec2.create(codecMode);
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_audioBufferSize = Codec2.getSamplesPerFrame(_codec2Con);
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int codec2FrameSize = Codec2.getBitsSize(_codec2Con); // returns number of bytes
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_recordAudioEncodedBuffer = new char[codec2FrameSize];
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_playbackAudioBuffer = new short[_audioBufferSize];
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}
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}
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