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VertexAI: add audio input feature (firebase#1653)
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57 changes: 57 additions & 0 deletions
57
...pp/src/main/kotlin/com/google/firebase/quickstart/vertexai/feature/audio/AudioRecorder.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * Copyright 2024 Google LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.google.firebase.quickstart.vertexai.feature.audio | ||
|
|
||
| import android.content.Context | ||
| import android.media.MediaRecorder | ||
| import android.os.Build | ||
| import java.io.File | ||
|
|
||
| class AudioRecorder { | ||
| private var recorder: MediaRecorder? = null | ||
| private var outputFilePath: String? = null | ||
|
|
||
| fun startRecording(context: Context) { | ||
| outputFilePath = File.createTempFile( | ||
| "recording_${System.currentTimeMillis()}", ".m4a", context.cacheDir | ||
| ).absolutePath | ||
|
|
||
| recorder = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) { | ||
| MediaRecorder(context) | ||
| } else { | ||
| MediaRecorder() | ||
| }.apply { | ||
| setAudioSource(MediaRecorder.AudioSource.MIC) | ||
| setOutputFormat(MediaRecorder.OutputFormat.MPEG_4) | ||
| setAudioEncoder(MediaRecorder.AudioEncoder.AAC) | ||
| setOutputFile(outputFilePath) | ||
| prepare() | ||
| start() | ||
| } | ||
| } | ||
|
|
||
| fun stopRecording(): ByteArray { | ||
| recorder?.stop() | ||
| recorder?.release() | ||
| recorder = null | ||
|
|
||
| val audioFile = File(outputFilePath ?: throw IllegalStateException("Output file path not set")) | ||
| val audioBytes = audioFile.readBytes() | ||
| audioFile.delete() | ||
| return audioBytes | ||
| } | ||
| } |
252 changes: 252 additions & 0 deletions
252
.../app/src/main/kotlin/com/google/firebase/quickstart/vertexai/feature/audio/AudioScreen.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,252 @@ | ||
| /* | ||
| * Copyright 2024 Google LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.google.firebase.quickstart.vertexai.feature.audio | ||
|
|
||
| import android.Manifest | ||
| import androidx.activity.compose.rememberLauncherForActivityResult | ||
| import androidx.activity.result.contract.ActivityResultContracts | ||
| import androidx.compose.foundation.layout.Box | ||
| import androidx.compose.foundation.layout.Column | ||
| import androidx.compose.foundation.layout.Row | ||
| import androidx.compose.foundation.layout.fillMaxWidth | ||
| import androidx.compose.foundation.layout.padding | ||
| import androidx.compose.foundation.layout.requiredSize | ||
| import androidx.compose.foundation.rememberScrollState | ||
| import androidx.compose.foundation.verticalScroll | ||
| import androidx.compose.material.icons.Icons | ||
| import androidx.compose.material.icons.filled.Delete | ||
| import androidx.compose.material.icons.outlined.Person | ||
| import androidx.compose.material3.Card | ||
| import androidx.compose.material3.CardDefaults | ||
| import androidx.compose.material3.CircularProgressIndicator | ||
| import androidx.compose.material3.Icon | ||
| import androidx.compose.material3.IconButton | ||
| import androidx.compose.material3.MaterialTheme | ||
| import androidx.compose.material3.OutlinedTextField | ||
| import androidx.compose.material3.Text | ||
| import androidx.compose.material3.TextButton | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.collectAsState | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.runtime.mutableStateOf | ||
| import androidx.compose.runtime.rememberCoroutineScope | ||
| import androidx.compose.runtime.saveable.rememberSaveable | ||
| import androidx.compose.runtime.setValue | ||
| import androidx.compose.ui.Alignment | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.draw.drawBehind | ||
| import androidx.compose.ui.graphics.Color | ||
| import androidx.compose.ui.graphics.vector.ImageVector | ||
| import androidx.compose.ui.platform.LocalContext | ||
| import androidx.compose.ui.res.stringResource | ||
| import androidx.compose.ui.res.vectorResource | ||
| import androidx.compose.ui.tooling.preview.Preview | ||
| import androidx.compose.ui.unit.dp | ||
| import androidx.core.content.ContextCompat | ||
| import androidx.core.content.PermissionChecker.PERMISSION_GRANTED | ||
| import androidx.lifecycle.viewmodel.compose.viewModel | ||
| import com.google.firebase.quickstart.vertexai.GenerativeViewModelFactory | ||
| import com.google.firebase.quickstart.vertexai.R | ||
| import kotlinx.coroutines.launch | ||
|
|
||
| @Composable | ||
| internal fun AudioRoute( | ||
| viewModel: AudioViewModel = viewModel(factory = GenerativeViewModelFactory) | ||
| ) { | ||
| val audioUiState by viewModel.uiState.collectAsState() | ||
| val coroutineScope = rememberCoroutineScope() | ||
|
|
||
| AudioScreen( | ||
| viewModel.audioRecorder, | ||
| uiState = audioUiState, | ||
| onReasonClicked = { inputText, audioData -> | ||
| coroutineScope.launch { viewModel.reason(inputText, audioData) } | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| @Composable | ||
| fun AudioScreen( | ||
| audioRecorder: AudioRecorder = AudioRecorder(), | ||
| uiState: AudioUiState = AudioUiState.Loading, | ||
| onReasonClicked: (String, ByteArray) -> Unit = { _, _ -> }, | ||
| ) { | ||
| val context = LocalContext.current | ||
|
|
||
| var userQuestion by rememberSaveable { mutableStateOf("") } | ||
| var recordGranted by rememberSaveable { | ||
| mutableStateOf( | ||
| ContextCompat.checkSelfPermission(context, Manifest.permission.RECORD_AUDIO) == PERMISSION_GRANTED | ||
| ) | ||
| } | ||
| var isRecording by rememberSaveable { mutableStateOf(false) } | ||
| var audioData by rememberSaveable { mutableStateOf<ByteArray?>(null) } | ||
|
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| val launcher = rememberLauncherForActivityResult(ActivityResultContracts.RequestPermission()) { isGranted -> | ||
| recordGranted = isGranted | ||
| } | ||
|
|
||
| Column( | ||
| modifier = Modifier | ||
| .padding(all = 16.dp) | ||
| .verticalScroll(rememberScrollState()) | ||
| ) { | ||
| Card(modifier = Modifier.fillMaxWidth()) { | ||
| Row(modifier = Modifier.padding(vertical = 16.dp)) { | ||
| if (!recordGranted) { | ||
| Box( | ||
| modifier = Modifier.fillMaxWidth(), contentAlignment = Alignment.Center | ||
| ) { | ||
| TextButton(onClick = { launcher.launch(Manifest.permission.RECORD_AUDIO) }) { | ||
| Text(stringResource(R.string.grant_record)) | ||
| } | ||
| } | ||
| } else { | ||
| IconButton( | ||
| onClick = { | ||
| if (isRecording) { | ||
| audioData = audioRecorder.stopRecording() | ||
| isRecording = false | ||
| } else if (audioData == null) { | ||
| audioRecorder.startRecording(context) | ||
| isRecording = true | ||
| } else { | ||
| audioData = null | ||
| } | ||
| }, | ||
| modifier = Modifier | ||
| .padding(all = 4.dp) | ||
| .align(Alignment.CenterVertically), | ||
| ) { | ||
| Icon( | ||
| imageVector = if (isRecording) { | ||
| ImageVector.vectorResource(R.drawable.stop) | ||
| } else if (audioData == null) { | ||
| ImageVector.vectorResource(R.drawable.mic) | ||
| } else { | ||
| Icons.Filled.Delete | ||
| }, | ||
| contentDescription = stringResource( | ||
| if (isRecording) { | ||
| R.string.stop_recording | ||
| } else if (audioData == null) { | ||
| R.string.start_recording | ||
| } else { | ||
| R.string.delete_clip | ||
| } | ||
| ), | ||
| ) | ||
| } | ||
| OutlinedTextField( | ||
| value = userQuestion, | ||
| label = { Text(stringResource(R.string.audio_label)) }, | ||
| placeholder = { Text(stringResource(R.string.audio_hint)) }, | ||
| onValueChange = { userQuestion = it }, | ||
| modifier = Modifier.fillMaxWidth(0.8f), | ||
| ) | ||
| TextButton( | ||
| onClick = { | ||
| if (audioData != null) onReasonClicked(userQuestion, audioData!!) | ||
| }, | ||
| modifier = Modifier | ||
| .padding(all = 4.dp) | ||
| .align(Alignment.CenterVertically), | ||
| ) { | ||
| Text( | ||
| stringResource(R.string.action_go), | ||
| color = if (audioData == null) { | ||
| MaterialTheme.colorScheme.secondary | ||
| } else { | ||
| MaterialTheme.colorScheme.primary | ||
| } | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| when (uiState) { | ||
| AudioUiState.Initial -> { | ||
| // Nothing is shown | ||
| } | ||
|
|
||
| AudioUiState.Loading -> { | ||
| Box( | ||
| contentAlignment = Alignment.Center, | ||
| modifier = Modifier | ||
| .padding(all = 8.dp) | ||
| .align(Alignment.CenterHorizontally), | ||
| ) { | ||
| CircularProgressIndicator() | ||
| } | ||
| } | ||
|
|
||
| is AudioUiState.Success -> { | ||
| Card( | ||
| modifier = Modifier | ||
| .padding(vertical = 16.dp) | ||
| .fillMaxWidth(), | ||
| shape = MaterialTheme.shapes.large, | ||
| colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.onSecondaryContainer), | ||
| ) { | ||
| Row( | ||
| modifier = Modifier | ||
| .padding(all = 16.dp) | ||
| .fillMaxWidth() | ||
| ) { | ||
| Icon( | ||
| Icons.Outlined.Person, | ||
| contentDescription = "Person Icon", | ||
| tint = MaterialTheme.colorScheme.onSecondary, | ||
| modifier = Modifier | ||
| .requiredSize(36.dp) | ||
| .drawBehind { drawCircle(color = Color.White) }, | ||
| ) | ||
| Text( | ||
| text = uiState.outputText, | ||
| color = MaterialTheme.colorScheme.onSecondary, | ||
| modifier = Modifier | ||
| .padding(start = 16.dp) | ||
| .fillMaxWidth(), | ||
| ) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| is AudioUiState.Error -> { | ||
| Card( | ||
| modifier = Modifier | ||
| .padding(vertical = 16.dp) | ||
| .fillMaxWidth(), | ||
| shape = MaterialTheme.shapes.large, | ||
| colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.errorContainer), | ||
| ) { | ||
| Text( | ||
| text = uiState.errorMessage, | ||
| color = MaterialTheme.colorScheme.error, | ||
| modifier = Modifier.padding(all = 16.dp), | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @Composable | ||
| @Preview(showSystemUi = true) | ||
| fun AudioScreenPreview() { | ||
| AudioScreen() | ||
| } |
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