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This commit is contained in:
Hoan HL
2025-11-27 15:27:29 +07:00
parent 4065db1d88
commit 19008ca485
3 changed files with 28 additions and 5 deletions
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2
lib/tasks/gather.js
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@@ -1161,7 +1161,7 @@ class TaskGather extends SttTask {
} }
async _startFallback(cs, ep, evt) { async _startFallback(cs, ep, evt) {
if (this.canFallback) { if (this.canFallback()) {
this._stopTranscribing(ep); this._stopTranscribing(ep);
try { try {
this.logger.debug('gather:_startFallback'); this.logger.debug('gather:_startFallback');

7
lib/tasks/stt-task.js
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@@ -171,7 +171,7 @@ class SttTask extends Task {
try { try {
this.sttCredentials = await this._initSpeechCredentials(this.cs, this.vendor, this.label); this.sttCredentials = await this._initSpeechCredentials(this.cs, this.vendor, this.label);
} catch (error) { } catch (error) {
if (this.canFallback) { if (this.canFallback()) {
this.notifyError( this.notifyError(
{ {
msg: 'ASR error', details:`Invalid vendor ${this.vendor}, Error: ${error}`, msg: 'ASR error', details:`Invalid vendor ${this.vendor}, Error: ${error}`,
@@ -340,11 +340,12 @@ class SttTask extends Task {
return credentials; return credentials;
} }
get canFallback() { canFallback() {
return this.fallbackVendor && this.isHandledByPrimaryProvider && !this.cs.hasFallbackAsr; return this.fallbackVendor && this.isHandledByPrimaryProvider && !this.cs.hasFallbackAsr;
} }
// gather does not need to provide ep, but transcribe does as it might has 2 legs // ep is optional for gather or any verb that have single ep,
// but transcribe does need as it might has 2 eps
async _initFallback(ep) { async _initFallback(ep) {
assert(this.fallbackVendor, 'fallback failed without fallbackVendor configuration'); assert(this.fallbackVendor, 'fallback failed without fallbackVendor configuration');
this.logger.info(`Failed to use primary STT provider, fallback to ${this.fallbackVendor}`); this.logger.info(`Failed to use primary STT provider, fallback to ${this.fallbackVendor}`);

24
lib/tasks/transcribe.js
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@@ -70,6 +70,9 @@ class TaskTranscribe extends SttTask {
this._bufferedTranscripts = [ [], [] ]; // for channel 1 and 2 this._bufferedTranscripts = [ [], [] ]; // for channel 1 and 2
this.bugname_prefix = 'transcribe_'; this.bugname_prefix = 'transcribe_';
this.paused = false; this.paused = false;
// fallback flags
this.isHandledByPrimaryProviderForEp1 = true;
this.isHandledByPrimaryProviderForEp2 = true;
} }
get name() { return TaskName.Transcribe; } get name() { return TaskName.Transcribe; }
@@ -776,7 +779,7 @@ class TaskTranscribe extends SttTask {
} }
async _startFallback(cs, _ep, evt) { async _startFallback(cs, _ep, evt) {
if (this.canFallback) { if (this.canFallback(_ep)) {
_ep.stopTranscription({ _ep.stopTranscription({
vendor: this.vendor, vendor: this.vendor,
bugname: this.bugname, bugname: this.bugname,
@@ -895,6 +898,25 @@ class TaskTranscribe extends SttTask {
if (this._asrTimer) clearTimeout(this._asrTimer); if (this._asrTimer) clearTimeout(this._asrTimer);
this._asrTimer = null; this._asrTimer = null;
} }
// We need to keep track the fallback is happened for each endpoint
// override the canFallback and _initFallback methods to make sure that
// we only fallback once per endpoint
canFallback(ep) {
const isHandledByPrimaryProvider = ep === this.ep ?
this.isHandledByPrimaryProviderForEp1 : ep === this.ep2 ?
this.isHandledByPrimaryProviderForEp2 : false;
return this.fallbackVendor && isHandledByPrimaryProvider && !this.cs.hasFallbackAsr;
}
_initFallback(ep) {
if (ep === this.ep) {
this.isHandledByPrimaryProviderForEp1 = false;
} else if (ep === this.ep2) {
this.isHandledByPrimaryProviderForEp2 = false;
}
return super._initFallback(ep);
}
} }
module.exports = TaskTranscribe; module.exports = TaskTranscribe;