2 Commits
Author SHA1 Message Date
viettranx ee57ec0fdc feat(tts): expand per-provider params + validation + golden fixtures
Phase 1 of the TTS params/layout/agent-override plan.

Capability schema:
- `ParamSchema.Group` field (`"basic"` default, `"advanced"` when set).
- Tag existing advanced params across openai/elevenlabs/minimax/gemini.

Gemini:
- Expose `temperature` (basic, 0.0–2.0, default 1.0, subtle-effect note),
  `seed`, `presencePenalty`, `frequencyPenalty` (advanced, experimental).
- Merge into `generationConfig` via explicit-presence resolvers so
  nil-params bodies stay byte-equivalent.

ElevenLabs:
- `output_format` enum (27 variants, default `mp3_44100_128`, advanced).
- `FormatMeta` lookup drives SynthResult MIME + extension.
- URL built via `net/url.Values.Encode()`; regex pre-validation for
  `output_format` (`^[a-z0-9_]+$`) and `language_code`
  (`^[a-z]{2,3}(-[A-Z]{2})?$`) blocks query-string injection.
- Telegram opus contract preserved: `opts.Format=="opus"` forces
  `audio/ogg; codecs=opus` regardless of user-set `output_format`.

MiniMax:
- `language_boost` (basic enum), `subtitle_enable` (basic bool),
  `pronunciation_dict` (advanced text, 8KB cap, wrapped as
  `{"tone":[...]}`). Parse failure logs length only + omits.

Validation:
- `audio.ValidateParams` enforces Min/Max/Enum + rejects unknown keys.
- Wired into `/v1/tts/synthesize` and `/v1/tts/config` write paths.
- `loadParamsBlob` capped at 16KB.
- i18n keys `MsgTtsParamOutOfRange`, `MsgTtsParamInvalidJSON`,
  `MsgTtsParamUnknownKey` added to en/vi/zh catalogs.

Tests:
- Golden `testdata/default_body.golden.json` per provider (gemini,
  elevenlabs, minimax, openai) checked in; invariant tests diff
  against file instead of self-referential capture.
- Round-trip tests for each new param + Telegram opus contract +
  URL-injection attempts.
2026-04-20 00:20:50 +07:00
viettranx 613b6e38d7 feat(tts): provider capabilities schema + Gemini TTS + dynamic param forms
Baseline groundwork for TTS expansion plan. Introduces a capabilities
system that the follow-up plan (phase-01..04) builds on.

Backend:
- `audio.ParamSchema` / `ProviderCapabilities` types + per-provider
  capabilities.go for edge, elevenlabs, minimax, openai, gemini.
- Gemini TTS provider (client, models, voices, wav encoder,
  multi-speaker via SpeakerVoice, audio-tag aware prompts).
- TTSOptions gains `Params map[string]any` (read-only) + `Speakers`.
- `VoiceListProvider` interface decouples HTTP voice handler from
  provider-specific impls.
- `nested_keys.go` resolves dot-separated param paths for nested
  provider bodies (voice_settings.stability etc.).
- Characterization + defaults-invariant tests per provider lock
  nil-params byte-equivalence before new params land.
- `/v1/tts/capabilities` HTTP endpoint + integration coverage.
- Dual-read tests (PG + SQLite) for tts_config.

Frontend (web + desktop):
- `DynamicParamForm` with depends-on evaluation, split into
  fields/logic modules. Slider primitive added.
- `AudioTagPicker` + `MultiSpeakerEditor` for Gemini.
- `voice-picker` refactored toward portal UX; combobox tightened.
- tts-capabilities API client + typed hooks.
- i18n catalogs (en/vi/zh) expanded; parity tests guard key drift.
- TTS page reorganised (voice-model-section removed; playground +
  credentials + provider-setup split cleanly).

Docs: codebase-summary, project-changelog, tts-provider-capabilities.
2026-04-20 00:05:19 +07:00