feat(skills): add media/transcription helpers

skills/openai-whisper-api/scripts/transcribe.sh

@@ -0,0 +1,85 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+usage() {
+  cat >&2 <<'EOF'
+Usage:
+  transcribe.sh <audio-file> [--model whisper-1] [--out /path/to/out.txt] [--language en] [--prompt "hint"] [--json]
+EOF
+  exit 2
+}
+
+if [[ "${1:-}" == "" || "${1:-}" == "-h" || "${1:-}" == "--help" ]]; then
+  usage
+fi
+
+in="${1:-}"
+shift || true
+
+model="whisper-1"
+out=""
+language=""
+prompt=""
+response_format="text"
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --model)
+      model="${2:-}"
+      shift 2
+      ;;
+    --out)
+      out="${2:-}"
+      shift 2
+      ;;
+    --language)
+      language="${2:-}"
+      shift 2
+      ;;
+    --prompt)
+      prompt="${2:-}"
+      shift 2
+      ;;
+    --json)
+      response_format="json"
+      shift 1
+      ;;
+    *)
+      echo "Unknown arg: $1" >&2
+      usage
+      ;;
+  esac
+done
+
+if [[ ! -f "$in" ]]; then
+  echo "File not found: $in" >&2
+  exit 1
+fi
+
+if [[ "${OPENAI_API_KEY:-}" == "" ]]; then
+  echo "Missing OPENAI_API_KEY" >&2
+  exit 1
+fi
+
+if [[ "$out" == "" ]]; then
+  base="${in%.*}"
+  if [[ "$response_format" == "json" ]]; then
+    out="${base}.json"
+  else
+    out="${base}.txt"
+  fi
+fi
+
+mkdir -p "$(dirname "$out")"
+
+curl -sS https://api.openai.com/v1/audio/transcriptions \
+  -H "Authorization: Bearer $OPENAI_API_KEY" \
+  -H "Accept: application/json" \
+  -F "file=@${in}" \
+  -F "model=${model}" \
+  -F "response_format=${response_format}" \
+  ${language:+-F "language=${language}"} \
+  ${prompt:+-F "prompt=${prompt}"} \
+  >"$out"
+
+echo "$out"