Seedance 2.0 Fast 图片生成视频

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

REQUEST_BODY=$(cat <<'JSON'
{
  "model": "seedance-2.0-fast/image-to-video",
  "callback_url": "https://httpbin.org/post",
  "input": {
    "prompt": "Begin exactly from Image 1 and finish on Image 2. Create one continuous four-second locked-camera time-lapse in the same desert courtyard. The sun rises from low morning to solar noon, shortening the terracotta sundial's shadow smoothly toward the gnomon while the existing flowers open in place. Preserve the exact sundial, unlettered dial lines, stone plinth, adobe wall, doorway, garden-bed geometry, mountains, plant locations, camera position, crop, and material colors. Only illumination, shadow length, and flower openness may change. Keep shadows physically consistent and settle precisely into the noon frame. Synchronized audio: a restrained desert breeze and faint dry leaves, with no music. No cuts, no people, no animals, no new objects, no numbers, no readable text, no logos, no brands, no products, no advertising, no watermark.",
    "duration": 4,
    "resolution": "480p",
    "aspect_ratio": "auto",
    "image_urls": [
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0-fast/image-to-video/v1/input-start-frame.png",
      "https://cdn.vidgo.ai/apis/models/bytedance/seedance-2.0-fast/image-to-video/v1/input-end-frame.png"
    ],
    "generate_audio": true,
    "seed": 26082704
  }
}
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/LC37CJUEOZD1IHL3" \
    --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