Seedance 2.0 Fast Reference-to-Video

set -euo pipefail
: "${VIDGO_API_KEY:?Set VIDGO_API_KEY in your environment}"

REQUEST_BODY=$(cat <<'JSON'
{
  "model": "seedance-2.0-fast/reference-to-video",
  "callback_url": "https://httpbin.org/post",
  "input": {
    "prompt": "Use Reference Image 1 only for the compact rover's rounded white crackle-ceramic body, four cobalt-blue wheels, brass sensor mast, dark glass sensor band, folded sampling arm, proportions, and materials. Use Reference Video 1 only for the curved route, quick right-left correction, stop timing, and low constant-distance camera track; do not copy the brass beetle, wooden blocks, washer, or worktable. Use Reference Audio 1 only for movement cadence and stop cue; replace leg taps with wheel and greenhouse sounds. Create one continuous four-second shot inside a misty glass greenhouse at dawn. The rover follows a curved wet-stone path between two empty planting beds, makes one right-left correction, then stops beneath a dripping irrigation pipe. Preserve the referenced rover identity, four wheels, and body geometry throughout. Synchronized audio: four wheels on wet stone, quiet electric steering, one water drop, and ventilation ambience. No cuts, no insects, no worktable, no blocks, no extra vehicles, no people, no readable text, no logos, no brands, no products, no advertising, no watermark.",
    "duration": 4,
    "resolution": "480p",
    "aspect_ratio": "16:9",
    "reference_image_urls": [
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0-fast/reference-to-video/v1/input-reference-image.png"
    ],
    "reference_video_urls": [
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0-fast/reference-to-video/v1/input-reference-video.mp4"
    ],
    "reference_audio_urls": [
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0-fast/reference-to-video/v1/input-reference-audio.mp3"
    ],
    "generate_audio": true,
    "seed": 26082706
  }
}
JSON
)

SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  --request POST \
  --url "https://api.vidgo.ai/api/generate/submit" \
  --header "Authorization: Bearer $VIDGO_API_KEY" \
  --header "Content-Type: application/json" \
  --data "$REQUEST_BODY")

TASK_ID=$(printf '%s' "$SUBMIT_RESPONSE" | jq -r '.data.task_id // .task_id // empty')
if [ -z "$TASK_ID" ]; then
  printf 'Submit response did not include task_id:
%s
' "$SUBMIT_RESPONSE" >&2
  exit 1
fi

while true; do
  STATUS_RESPONSE=$(curl --silent --show-error --fail-with-body \
    --url "https://api.vidgo.ai/api/generate/status/I4FDXYJ7C1LQT4H2" \
    --header "Authorization: Bearer $VIDGO_API_KEY")
  STATUS=$(printf '%s' "$STATUS_RESPONSE" | jq -r '.data.status // .status // empty')

  case "$STATUS" in
    finished)
      printf '%s' "$STATUS_RESPONSE" | jq -r '(.data.files // .files // [])[]?.file_url'
      break
      ;;
    failed)
      printf '%s' "$STATUS_RESPONSE" | jq -r '.data.error_message // .error_message // "Generation failed"' >&2
      exit 1
      ;;
    not_started|running)
      sleep 2
      ;;
    *)
      printf 'Unexpected task status: %s
' "$STATUS" >&2
      exit 1
      ;;
  esac
done