1package eu.siacs.conversations.ui;
2
3import android.app.Activity;
4import android.content.Intent;
5import android.content.SharedPreferences;
6import android.media.MediaRecorder;
7import android.net.Uri;
8import android.os.Build;
9import android.os.Bundle;
10import android.os.Environment;
11import android.os.FileObserver;
12import android.os.Handler;
13import android.os.SystemClock;
14import android.preference.PreferenceManager;
15import android.util.Log;
16import android.view.View;
17import android.view.WindowManager;
18import android.widget.Toast;
19
20import androidx.appcompat.app.AppCompatActivity;
21import androidx.databinding.DataBindingUtil;
22
23import com.google.common.collect.ImmutableSet;
24
25import java.io.File;
26import java.lang.ref.WeakReference;
27import java.text.SimpleDateFormat;
28import java.util.Date;
29import java.util.Locale;
30import java.util.Objects;
31import java.util.concurrent.CountDownLatch;
32import java.util.concurrent.TimeUnit;
33import java.util.Set;
34
35import eu.siacs.conversations.Config;
36import eu.siacs.conversations.R;
37import eu.siacs.conversations.databinding.ActivityRecordingBinding;
38import eu.siacs.conversations.ui.util.SettingsUtils;
39import eu.siacs.conversations.utils.TimeFrameUtils;
40
41public class RecordingActivity extends BaseActivity implements View.OnClickListener {
42
43 private ActivityRecordingBinding binding;
44
45 private MediaRecorder mRecorder;
46 private long mStartTime = 0;
47
48 private final CountDownLatch outputFileWrittenLatch = new CountDownLatch(1);
49
50 private final Handler mHandler = new Handler();
51 private final Runnable mTickExecutor =
52 new Runnable() {
53 @Override
54 public void run() {
55 tick();
56 mHandler.postDelayed(mTickExecutor, 100);
57 }
58 };
59
60 private File mOutputFile;
61
62 private FileObserver mFileObserver;
63
64 @Override
65 protected void onCreate(Bundle savedInstanceState) {
66 super.onCreate(savedInstanceState);
67 this.binding = DataBindingUtil.setContentView(this, R.layout.activity_recording);
68 this.binding.cancelButton.setOnClickListener(this);
69 this.binding.shareButton.setOnClickListener(this);
70 this.setFinishOnTouchOutside(false);
71 getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
72 }
73 @Override
74 public void onStart() {
75 super.onStart();
76 if (!startRecording()) {
77 this.binding.shareButton.setEnabled(false);
78 this.binding.timer.setTextAppearance(com.google.android.material.R.style.TextAppearance_Material3_BodyMedium);
79 // TODO reset font family. make red?
80 this.binding.timer.setText(R.string.unable_to_start_recording);
81 }
82 }
83
84 @Override
85 protected void onStop() {
86 super.onStop();
87 if (mRecorder != null) {
88 mHandler.removeCallbacks(mTickExecutor);
89 stopRecording(false);
90 }
91 if (mFileObserver != null) {
92 mFileObserver.stopWatching();
93 }
94 }
95
96 protected SharedPreferences getPreferences() {
97 return PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
98 }
99
100 private static final Set<String> AAC_SENSITIVE_DEVICES =
101 new ImmutableSet.Builder<String>()
102 .add("FP4") // Fairphone 4 https://codeberg.org/monocles/monocles_chat/issues/133
103 .add("ONEPLUS A6000") // OnePlus 6 https://github.com/iNPUTmice/Conversations/issues/4329
104 .add("ONEPLUS A6003") // OnePlus 6 https://github.com/iNPUTmice/Conversations/issues/4329
105 .add("ONEPLUS A6010") // OnePlus 6T https://codeberg.org/monocles/monocles_chat/issues/133
106 .add("ONEPLUS A6013") // OnePlus 6T https://codeberg.org/monocles/monocles_chat/issues/133
107 .add("Pixel 4a") // Pixel 4a https://github.com/iNPUTmice/Conversations/issues/4223
108 .add("WP12 Pro") // Oukitel WP 12 Pro https://github.com/iNPUTmice/Conversations/issues/4223
109 .add("Volla Phone X") // Volla Phone X https://github.com/iNPUTmice/Conversations/issues/4223
110 .build();
111
112 private boolean startRecording() {
113 mRecorder = new MediaRecorder();
114 mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
115 final String userChosenCodec = getPreferences().getString("voice_message_codec", "");
116 final int outputFormat;
117 if (("opus".equals(userChosenCodec) || ("".equals(userChosenCodec) && Config.USE_OPUS_VOICE_MESSAGES)) && Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
118 outputFormat = MediaRecorder.OutputFormat.OGG;
119 mRecorder.setOutputFormat(outputFormat);
120 mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.OPUS);
121 mRecorder.setAudioEncodingBitRate(32000);
122 } else if ("mpeg4".equals(userChosenCodec) || !Config.USE_OPUS_VOICE_MESSAGES) {
123 outputFormat = MediaRecorder.OutputFormat.MPEG_4;
124 mRecorder.setOutputFormat(outputFormat);
125 if (AAC_SENSITIVE_DEVICES.contains(Build.MODEL)) {
126 // Changing these three settings for AAC sensitive devices might lead to sporadically truncated (cut-off) voice messages.
127 mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.HE_AAC);
128 mRecorder.setAudioSamplingRate(24_000);
129 mRecorder.setAudioEncodingBitRate(28_000);
130 } else {
131 mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
132 mRecorder.setAudioSamplingRate(22_050);
133 mRecorder.setAudioEncodingBitRate(64_000);
134 }
135 } else {
136 outputFormat = MediaRecorder.OutputFormat.THREE_GPP;
137 mRecorder.setOutputFormat(outputFormat);
138 mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_WB);
139 mRecorder.setAudioEncodingBitRate(23850);
140 mRecorder.setAudioSamplingRate(16000);
141 }
142 setupOutputFile(outputFormat);
143 mRecorder.setOutputFile(mOutputFile.getAbsolutePath());
144
145 try {
146 mRecorder.prepare();
147 mRecorder.start();
148 mStartTime = SystemClock.elapsedRealtime();
149 mHandler.postDelayed(mTickExecutor, 100);
150 Log.d(Config.LOGTAG, "started recording to " + mOutputFile.getAbsolutePath());
151 return true;
152 } catch (Exception e) {
153 Log.e(Config.LOGTAG, "prepare() failed ", e);
154 return false;
155 }
156 }
157
158 protected void stopRecording(final boolean saveFile) {
159 try {
160 mRecorder.stop();
161 mRecorder.release();
162 } catch (Exception e) {
163 if (saveFile) {
164 Toast.makeText(this, R.string.unable_to_save_recording, Toast.LENGTH_SHORT).show();
165 return;
166 }
167 } finally {
168 mRecorder = null;
169 mStartTime = 0;
170 }
171 if (!saveFile && mOutputFile != null) {
172 if (mOutputFile.delete()) {
173 Log.d(Config.LOGTAG, "deleted canceled recording");
174 }
175 }
176 if (saveFile) {
177 new Thread(new Finisher(outputFileWrittenLatch, mOutputFile, this)).start();
178 }
179 }
180
181 private static class Finisher implements Runnable {
182
183 private final CountDownLatch latch;
184 private final File outputFile;
185 private final WeakReference<Activity> activityReference;
186
187 private Finisher(CountDownLatch latch, File outputFile, Activity activity) {
188 this.latch = latch;
189 this.outputFile = outputFile;
190 this.activityReference = new WeakReference<>(activity);
191 }
192
193 @Override
194 public void run() {
195 try {
196 if (!latch.await(8, TimeUnit.SECONDS)) {
197 Log.d(Config.LOGTAG, "time out waiting for output file to be written");
198 }
199 } catch (final InterruptedException e) {
200 Log.d(Config.LOGTAG, "interrupted while waiting for output file to be written", e);
201 }
202 final Activity activity = activityReference.get();
203 if (activity == null) {
204 return;
205 }
206 activity.runOnUiThread(
207 () -> {
208 activity.setResult(
209 Activity.RESULT_OK, new Intent().setData(Uri.fromFile(outputFile)));
210 activity.finish();
211 });
212 }
213 }
214
215 private File generateOutputFilename(final int outputFormat) {
216 final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
217 final String extension;
218 if (outputFormat == MediaRecorder.OutputFormat.MPEG_4) {
219 extension = "m4a";
220 } else if (outputFormat == MediaRecorder.OutputFormat.OGG) {
221 extension = "oga";
222 } else if (outputFormat == MediaRecorder.OutputFormat.THREE_GPP) {
223 extension = "awb";
224 } else {
225 throw new IllegalStateException("Unrecognized output format");
226 }
227 final String filename =
228 String.format("RECORDING_%s.%s", dateFormat.format(new Date()), extension);
229 final File parentDirectory;
230 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
231 parentDirectory =
232 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_RECORDINGS);
233 } else {
234 parentDirectory =
235 Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
236 }
237 final File conversationsDirectory = new File(parentDirectory, getString(R.string.app_name));
238 return new File(conversationsDirectory, filename);
239 }
240
241 private void setupOutputFile(final int outputFormat) {
242 mOutputFile = generateOutputFilename(outputFormat);
243 final File parentDirectory = mOutputFile.getParentFile();
244 if (Objects.requireNonNull(parentDirectory).mkdirs()) {
245 Log.d(Config.LOGTAG, "created " + parentDirectory.getAbsolutePath());
246 }
247 setupFileObserver(parentDirectory);
248 }
249
250 private void setupFileObserver(final File directory) {
251 mFileObserver =
252 new FileObserver(directory.getAbsolutePath()) {
253 @Override
254 public void onEvent(int event, String s) {
255 if (s != null
256 && s.equals(mOutputFile.getName())
257 && event == FileObserver.CLOSE_WRITE) {
258 outputFileWrittenLatch.countDown();
259 }
260 }
261 };
262 mFileObserver.startWatching();
263 }
264
265 private void tick() {
266 this.binding.timer.setText(TimeFrameUtils.formatTimePassed(mStartTime, true));
267 }
268
269 @Override
270 public void onClick(final View view) {
271 switch (view.getId()) {
272 case R.id.cancel_button:
273 mHandler.removeCallbacks(mTickExecutor);
274 stopRecording(false);
275 setResult(RESULT_CANCELED);
276 finish();
277 break;
278 case R.id.share_button:
279 this.binding.shareButton.setEnabled(false);
280 this.binding.shareButton.setText(R.string.please_wait);
281 mHandler.removeCallbacks(mTickExecutor);
282 mHandler.postDelayed(() -> stopRecording(true), 500);
283 break;
284 }
285 }
286}