feat(clip,dub,caption): add --from-stdin batch mode#213
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Abstract transcribe's batch primitive (--from-stdin/--concurrency/--force) into a shared app/batch.py runner and wire it into clip, dub, and caption, so each processes a piped list of sources concurrently — making the media commands as pipeline-composable as transcribe already was (find … | assembly caption --from-stdin). - app/batch.py: a generic concurrent runner parameterized by a per-source worker — stdin source expansion, a live status table, one NDJSON record per source under --json, and a fail-summary that exits non-zero. Lighter than transcribe's sidecar/--llm/--llm-reduce path on purpose. - clip/dub/caption: --from-stdin reads one path/URL per line and runs each source's existing single-source pipeline concurrently. A re-run skips sources whose output already exists (--force redoes them); --out and -t/--transcript-id are rejected in batch mode (they can't span many sources). - options.py: the batch option factories now take per-command help text so the flags read naturally on each command (video vs audio, caption vs dub vs clip). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_015PJdgpwb2zQAJSyyMQvijh
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Abstract transcribe's batch primitive (--from-stdin/--concurrency/--force)
into a shared app/batch.py runner and wire it into clip, dub, and caption, so
each processes a piped list of sources concurrently — making the media commands
as pipeline-composable as transcribe already was (find … | assembly caption
--from-stdin).
worker — stdin source expansion, a live status table, one NDJSON record per
source under --json, and a fail-summary that exits non-zero. Lighter than
transcribe's sidecar/--llm/--llm-reduce path on purpose.
source's existing single-source pipeline concurrently. A re-run skips sources
whose output already exists (--force redoes them); --out and -t/--transcript-id
are rejected in batch mode (they can't span many sources).
flags read naturally on each command (video vs audio, caption vs dub vs clip).
Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com
Claude-Session: https://claude.ai/code/session_015PJdgpwb2zQAJSyyMQvijh