* feat(parakeet-cpp): honor request language (multilingual nemotron) on batched + streaming paths
Reads opts.GetLanguage() and threads it through to the new
parakeet_capi_transcribe_pcm_batch_json_lang and parakeet_capi_stream_begin_lang
C-API entry points, both probed with Dlsym so the backend still loads against an
older libparakeet.so (falling back to the non-lang paths, i.e. model default).
parakeet.cpp's batched C-API takes a single target_lang for the whole batch, so
the dispatcher only coalesces same-language requests: a request whose language
differs from the batch leader is held as a single carry-over and becomes the
leader of the next batch, never dropped and never left waiting (including on
shutdown). A new batcher test asserts no dispatched batch is ever mixed-language
and that every submitted request still receives a reply.
Assisted-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
* feat(gallery): add parakeet-cpp-nemotron-3.5-asr-streaming-0.6b; bump parakeet.cpp pin
Adds the multilingual prompt-conditioned streaming model to the gallery (q8_0
default, OpenMDW-1.1) and bumps the parakeet-cpp backend pin to the parakeet.cpp
commit that ships nemotron support plus batched causal subsampling and the
batched target_lang C-API.
Assisted-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
* feat(parakeet-cpp): dynamic-batching scheduler (queue + dispatcher)
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* feat(parakeet-cpp): dynamic batching for AudioTranscription via batched JSON C-API
Drop SingleThread; route unary transcription through the in-process batcher
which coalesces concurrent requests into one batched engine call. Streaming
stays mutually exclusive via engineMu. Adds batch_max_size / batch_max_wait_ms
options (size=1 disables; recommended on CPU).
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* fix(parakeet-cpp): tear down dispatcher in Free; log batch config; preallocate; clarify stream lock
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* fix(parakeet-cpp): Ginkgo batcher tests; optional batch C-API binding with per-request fallback
The batched JSON C-API symbol exists only in newer libparakeet.so (ABI >= 2);
probe it with Dlsym and register optionally so the backend still loads against
an older library, falling back to per-request transcription. Rewrites the
batcher unit tests as Ginkgo/Gomega specs (forbidigo bans t.Fatal in tests).
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* feat(parakeet-cpp): debug-log coalesced batch size in runBatch
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* fix(parakeet-cpp): default batch_max_size to 1 (batching opt-in)
Dynamic batching now defaults off (batch_max_size:1, one request at a
time). Raise batch_max_size to opt in: it is a large throughput win on
GPU under concurrent load, but on CPU and low-concurrency setups it only
adds latency, so off is the safer default. The startup log now states
whether batching is on or off, and the audio-to-text docs are updated to
match.
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
* chore(parakeet-cpp): bump parakeet.cpp to 8a7c482 (batched decode + B=1 fast-path)
parakeet.cpp PR #1 merged the batched encoder/decode and the B=1 encoder
fast-path to master. Point PARAKEET_VERSION at that commit so the backend
builds the batched C-API (parakeet_capi_transcribe_pcm_batch_json) that the
dynamic batcher calls; the prior pin (30a3075) predated it, so only the
per-request fallback path was exercised. Verified the shared lib builds with
the backend's CMake flags and exports the batch symbol.
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
---------
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>
