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Detect audio input format #306

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Merged
julien-nc merged 1 commit into from
Dec 4, 2025
Merged

Detect audio input format #306

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4 changes: 3 additions & 1 deletion lib/Service/OpenAiAPIService.php
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Original file line number Diff line number Diff line change
Expand Up @@ -490,6 +490,7 @@ public function createCompletion(
* @param string|null $toolMessage JSON string with role, content, tool_call_id
* @param array|null $tools
* @param string|null $userAudioPromptBase64
* @param string|null $userAudioPromptFormat
* @return array{messages: array<string>, tool_calls: array<string>, audio_messages: list<array<string, mixed>>}
* @throws Exception
*/
Expand All @@ -505,6 +506,7 @@ public function createChatCompletion(
?string $toolMessage = null,
?array $tools = null,
?string $userAudioPromptBase64 = null,
?string $userAudioPromptFormat = null,
): array {
if ($this->isQuotaExceeded($userId, Application::QUOTA_TYPE_TEXT)) {
throw new Exception($this->l10n->t('Text generation quota exceeded'), Http::STATUS_TOO_MANY_REQUESTS);
Expand Down Expand Up @@ -560,7 +562,7 @@ public function createChatCompletion(
'type' => 'input_audio',
'input_audio' => [
'data' => $userAudioPromptBase64,
'format' => 'wav',
'format' => $userAudioPromptFormat ?? 'wav',
],
],
],
Expand Down
13 changes: 12 additions & 1 deletion lib/TaskProcessing/AudioToAudioChatProvider.php
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,15 @@

class AudioToAudioChatProvider implements ISynchronousProvider {

// OpenAI supports wav and mp3
// https://platform.openai.com/docs/api-reference/chat/create#chat-create-messages
private const SUPPORTED_INPUT_AUDIO_FORMATS = [
'audio/mp3' => 'mp3',
'audio/mpeg' => 'mp3',
'audio/wav' => 'wav',
'audio/x-wav' => 'wav',
];

public function __construct(
private OpenAiAPIService $openAiAPIService,
private IL10N $l,
Expand Down Expand Up @@ -213,6 +222,8 @@ private function oneStep(
string $sttModel, string $llmModel, string $ttsModel, float $speed, string $serviceName,
): array {
$result = [];
$audioInputMimetype = mime_content_type($inputFile->fopen('rb'));
$audioInputFormat = self::SUPPORTED_INPUT_AUDIO_FORMATS[$audioInputMimetype] ?? 'wav';
$b64Audio = base64_encode($inputFile->getContent());
$extraParams = [
'modalities' => ['text', 'audio'],
Expand All @@ -221,7 +232,7 @@ private function oneStep(
$systemPrompt .= ' Producing text responses will break the user interface. Important: You have multimodal voice capability, and you use voice exclusively to respond.';
$completion = $this->openAiAPIService->createChatCompletion(
$userId, $llmModel, null, $systemPrompt, $history, 1, 1000,
$extraParams, null, null, $b64Audio,
$extraParams, null, null, $b64Audio, $audioInputFormat
);
$message = array_pop($completion['audio_messages']);
// TODO find a way to force the model to answer with audio when there is only text in the history
Expand Down
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