| 1 | /** |
| 2 | * AI 批量生成 - 模型配置常量 |
| 3 | * 积分与时长等动态数据已由 pricing API 驱动，此处仅保留 API 不提供的静态配置 |
| 4 | */ |
| 5 | |
| 6 | import type { CreditsScope } from '@/api/_shared/credits.types' |
| 7 | import type { ImageModelInfo, VideoModelInfo, VideoModelInputConstraint, VideoModelPricing } from '@/api/ai/ai.types' |
| 8 | |
| 9 | /** 根据比例字符串（如 "9:16"）计算预览方块的 w/h（缩放到合适的 UI 尺寸） */ |
| 10 | export function ratioToPreviewSize(label: string): { w: number, h: number } { |
| 11 | const [a, b] = label.split(':').map(Number) |
| 12 | if (!a || !b) |
| 13 | return { w: 14, h: 14 } |
| 14 | const maxDim = 18 |
| 15 | const scale = maxDim / Math.max(a, b) |
| 16 | return { w: Math.round(a * scale), h: Math.round(b * scale) } |
| 17 | } |
| 18 | |
| 19 | export function getVideoModelCreditsScope(model?: VideoModelInfo): CreditsScope { |
| 20 | if (model?.creditsScope === 'seedance') |
| 21 | return 'seedance' |
| 22 | return 'general' |
| 23 | } |
| 24 | |
| 25 | export function isSeedanceCreditsModel(model?: VideoModelInfo): boolean { |
| 26 | return getVideoModelCreditsScope(model) === 'seedance' |
| 27 | } |
| 28 | |
| 29 | // ==================== 视频模型配置 ==================== |
| 30 | |
| 31 | /** 视频模型静态配置 */ |
| 32 | export interface VideoModelStaticConfig { |
| 33 | supportedRatios: Set<string> |
| 34 | maxImages: number |
| 35 | maxVideos: number |
| 36 | maxAudios: number |
| 37 | maxVideoDuration: number |
| 38 | maxAudioDuration: number |
| 39 | imageInputConstraints?: VideoModelInputConstraint |
| 40 | videoInputConstraints?: VideoModelInputConstraint |
| 41 | audioInputConstraints?: VideoModelInputConstraint |
| 42 | } |
| 43 | |
| 44 | /** 允许上传图片的 modes */ |
| 45 | const IMAGE_UPLOAD_MODES = new Set(['image2video', 'multi-image2video', 'flf2video', 'lf2video', 'multi-ref']) |
| 46 | const VIDEO_UPLOAD_MODE = 'video2video' |
| 47 | const MIXED_REFERENCE_MODE = 'multi-ref' |
| 48 | const DEFAULT_VIDEO_ASPECT_RATIOS = ['1:1', '16:9', '9:16', '4:3', '3:4'] |
| 49 | const DEFAULT_VIDEO_DURATION_LIMITS = { min: 4, max: 15 } |
| 50 | |
| 51 | function normalizeOptionValue(value: string) { |
| 52 | return value.trim() |
| 53 | } |
| 54 | |
| 55 | function getOptionCompareKey(value: string) { |
| 56 | return normalizeOptionValue(value).replace(/\s+/g, '').toLowerCase() |
| 57 | } |
| 58 | |
| 59 | function getUniqueStrings(values: string[]) { |
| 60 | const normalizedValues = new Map<string, string>() |
| 61 | values.forEach((value) => { |
| 62 | const normalizedValue = normalizeOptionValue(value) |
| 63 | if (!normalizedValue) |
| 64 | return |
| 65 | const normalizedKey = getOptionCompareKey(normalizedValue) |
| 66 | if (!normalizedValues.has(normalizedKey)) |
| 67 | normalizedValues.set(normalizedKey, normalizedValue) |
| 68 | }) |
| 69 | return [...normalizedValues.values()] |
| 70 | } |
| 71 | |
| 72 | function getCommonStrings(groups: string[][]) { |
| 73 | const nonEmptyGroups = groups |
| 74 | .map(group => getUniqueStrings(group)) |
| 75 | .filter(group => group.length > 0) |
| 76 | if (nonEmptyGroups.length === 0) |
| 77 | return [] |
| 78 | |
| 79 | const [firstGroup, ...restGroups] = nonEmptyGroups |
| 80 | if (!firstGroup) |
| 81 | return [] |
| 82 | |
| 83 | return firstGroup.filter(item => restGroups.every(group => |
| 84 | group.some(value => getOptionCompareKey(value) === getOptionCompareKey(item)))) |
| 85 | } |
| 86 | |
| 87 | export function getVideoModelAspectRatios(model?: VideoModelInfo): string[] { |
| 88 | const ratios = getUniqueStrings(model?.aspectRatios?.filter(Boolean) ?? []) |
| 89 | return ratios.length > 0 ? ratios : DEFAULT_VIDEO_ASPECT_RATIOS |
| 90 | } |
| 91 | |
| 92 | /** 从 API 返回的 VideoModelInfo 动态生成静态配置 */ |
| 93 | export function getVideoModelConfigFromApi(model: VideoModelInfo): VideoModelStaticConfig { |
| 94 | const canUploadMixedReference = model.modes.includes(MIXED_REFERENCE_MODE) |
| 95 | const canUploadVideo = model.modes.includes(VIDEO_UPLOAD_MODE) || canUploadMixedReference |
| 96 | const videoInputConstraints = model.inputConstraints?.videos |
| 97 | const audioInputConstraints = model.inputConstraints?.audios |
| 98 | const imageInputConstraints = model.inputConstraints?.images |
| 99 | const maxModelDuration = model.durations.length > 0 ? Math.max(...model.durations) : 8 |
| 100 | return { |
| 101 | supportedRatios: new Set(getVideoModelAspectRatios(model)), |
| 102 | maxImages: model.modes.some(m => IMAGE_UPLOAD_MODES.has(m)) ? imageInputConstraints?.maxCount ?? model.maxInputImages : 0, |
| 103 | maxVideos: canUploadVideo ? videoInputConstraints?.maxCount ?? 1 : 0, |
| 104 | maxAudios: canUploadMixedReference ? audioInputConstraints?.maxCount ?? 1 : 0, |
| 105 | maxVideoDuration: canUploadVideo |
| 106 | ? videoInputConstraints?.maxTotalDuration ?? videoInputConstraints?.maxDuration ?? maxModelDuration |
| 107 | : maxModelDuration, |
| 108 | maxAudioDuration: canUploadMixedReference |
| 109 | ? audioInputConstraints?.maxTotalDuration ?? audioInputConstraints?.maxDuration ?? maxModelDuration |
| 110 | : maxModelDuration, |
| 111 | imageInputConstraints, |
| 112 | videoInputConstraints: canUploadVideo ? videoInputConstraints : undefined, |
| 113 | audioInputConstraints: canUploadMixedReference ? audioInputConstraints : undefined, |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | /** 默认静态配置，API 数据不可用时兜底 */ |
| 118 | const DEFAULT_STATIC_CONFIG: VideoModelStaticConfig = { |
| 119 | supportedRatios: new Set(DEFAULT_VIDEO_ASPECT_RATIOS), |
| 120 | maxImages: 1, |
| 121 | maxVideos: 0, |
| 122 | maxAudios: 0, |
| 123 | maxVideoDuration: 8, |
| 124 | maxAudioDuration: 8, |
| 125 | } |
| 126 | |
| 127 | /** 获取视频模型的静态配置：优先从 API 数据动态生成，兜底用默认值 */ |
| 128 | export function getVideoModelStaticConfig(modelName: string, videoModels?: VideoModelInfo[]): VideoModelStaticConfig { |
| 129 | if (videoModels) { |
| 130 | const model = videoModels.find(m => m.name === modelName) |
| 131 | if (model) |
| 132 | return getVideoModelConfigFromApi(model) |
| 133 | } |
| 134 | return DEFAULT_STATIC_CONFIG |
| 135 | } |
| 136 | |
| 137 | /** 获取视频模型可选分辨率，优先使用模型字段，缺失时从 pricing 兜底 */ |
| 138 | export function getVideoModelResolutions(model?: VideoModelInfo): string[] { |
| 139 | const resolutions = getUniqueStrings(model?.resolutions?.filter(Boolean) ?? []) |
| 140 | if (resolutions.length > 0) |
| 141 | return resolutions |
| 142 | |
| 143 | return getUniqueStrings(model?.pricing?.map(item => item.resolution).filter((item): item is string => !!item) ?? []) |
| 144 | } |
| 145 | |
| 146 | export function getVideoModelsCommonResolutions(models: VideoModelInfo[]): string[] { |
| 147 | return getCommonStrings(models.map(model => getVideoModelResolutions(model))) |
| 148 | } |
| 149 | |
| 150 | export function getVideoModelsCommonAspectRatios(models: VideoModelInfo[]): string[] { |
| 151 | return getCommonStrings(models.map(model => getVideoModelAspectRatios(model))) |
| 152 | } |
| 153 | |
| 154 | export function getVideoModelsCommonStaticConfig(models: VideoModelInfo[]): VideoModelStaticConfig { |
| 155 | if (models.length === 0) |
| 156 | return DEFAULT_STATIC_CONFIG |
| 157 | |
| 158 | const configs = models.map(model => getVideoModelConfigFromApi(model)) |
| 159 | return { |
| 160 | supportedRatios: new Set(getVideoModelsCommonAspectRatios(models)), |
| 161 | maxImages: Math.min(...configs.map(config => config.maxImages)), |
| 162 | maxVideos: Math.min(...configs.map(config => config.maxVideos)), |
| 163 | maxAudios: Math.min(...configs.map(config => config.maxAudios)), |
| 164 | maxVideoDuration: Math.min(...configs.map(config => config.maxVideoDuration)), |
| 165 | maxAudioDuration: Math.min(...configs.map(config => config.maxAudioDuration)), |
| 166 | imageInputConstraints: mergeInputConstraints(configs.map(config => config.imageInputConstraints)), |
| 167 | videoInputConstraints: mergeInputConstraints(configs.map(config => config.videoInputConstraints)), |
| 168 | audioInputConstraints: mergeInputConstraints(configs.map(config => config.audioInputConstraints)), |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | function mergeInputConstraints(constraints: Array<VideoModelInputConstraint | undefined>) { |
| 173 | const items = constraints.filter((item): item is VideoModelInputConstraint => Boolean(item)) |
| 174 | if (items.length === 0) |
| 175 | return undefined |
| 176 | return { |
| 177 | maxCount: minOptional(items.map(item => item.maxCount)), |
| 178 | formats: intersectFormats(items.map(item => item.formats)), |
| 179 | minDuration: maxOptional(items.map(item => item.minDuration)), |
| 180 | maxDuration: minOptional(items.map(item => item.maxDuration)), |
| 181 | maxTotalDuration: minOptional(items.map(item => item.maxTotalDuration)), |
| 182 | maxSizeMb: minOptional(items.map(item => item.maxSizeMb)), |
| 183 | minAspectRatio: maxOptional(items.map(item => item.minAspectRatio)), |
| 184 | maxAspectRatio: minOptional(items.map(item => item.maxAspectRatio)), |
| 185 | minWidth: maxOptional(items.map(item => item.minWidth)), |
| 186 | maxWidth: minOptional(items.map(item => item.maxWidth)), |
| 187 | minPixels: maxOptional(items.map(item => item.minPixels)), |
| 188 | maxPixels: minOptional(items.map(item => item.maxPixels)), |
| 189 | minFps: maxOptional(items.map(item => item.minFps)), |
| 190 | maxFps: minOptional(items.map(item => item.maxFps)), |
| 191 | } |
| 192 | } |
| 193 | |
| 194 | function minOptional(values: Array<number | undefined>) { |
| 195 | const items = values.filter((value): value is number => value !== undefined) |
| 196 | return items.length > 0 ? Math.min(...items) : undefined |
| 197 | } |
| 198 | |
| 199 | function maxOptional(values: Array<number | undefined>) { |
| 200 | const items = values.filter((value): value is number => value !== undefined) |
| 201 | return items.length > 0 ? Math.max(...items) : undefined |
| 202 | } |
| 203 | |
| 204 | function intersectFormats(formatGroups: Array<string[] | undefined>) { |
| 205 | const groups = formatGroups |
| 206 | .filter((formats): formats is string[] => Boolean(formats?.length)) |
| 207 | .map(formats => formats.map(format => format.trim().toLowerCase()).filter(Boolean)) |
| 208 | if (groups.length === 0) |
| 209 | return undefined |
| 210 | const [firstGroup, ...restGroups] = groups |
| 211 | return firstGroup?.filter(format => restGroups.every(group => group.includes(format))) |
| 212 | } |
| 213 | |
| 214 | /** 获取视频模型默认分辨率 */ |
| 215 | export function getVideoModelDefaultResolution(model?: VideoModelInfo): string { |
| 216 | return model?.defaults?.resolution ?? getVideoModelResolutions(model)[0] ?? '' |
| 217 | } |
| 218 | |
| 219 | export function getVideoModelDurationLimits( |
| 220 | model: VideoModelInfo | undefined, |
| 221 | resolution: string, |
| 222 | isVideoEditMode: boolean, |
| 223 | ): { min: number, max: number } { |
| 224 | if (!model) |
| 225 | return DEFAULT_VIDEO_DURATION_LIMITS |
| 226 | |
| 227 | const pricing = filterVideoPricingByResolution(model.pricing, resolution, isVideoEditMode) |
| 228 | const durations = pricing.length > 0 ? pricing.map(item => item.duration) : model.durations |
| 229 | if (durations.length === 0) |
| 230 | return DEFAULT_VIDEO_DURATION_LIMITS |
| 231 | |
| 232 | return { |
| 233 | min: Math.min(...durations), |
| 234 | max: Math.max(...durations), |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | /** 按模式与分辨率过滤视频定价；模型无分辨率定价时复用通用价格 */ |
| 239 | export function filterVideoPricingByResolution( |
| 240 | pricing: VideoModelPricing[] | undefined, |
| 241 | resolution: string, |
| 242 | isVideoEditMode: boolean, |
| 243 | ): VideoModelPricing[] { |
| 244 | const pricingItems = pricing ?? [] |
| 245 | const modePricing = isVideoEditMode |
| 246 | ? pricingItems.filter(item => item.mode === 'video2video') |
| 247 | : pricingItems.filter(item => !item.mode) |
| 248 | const effectiveModePricing = modePricing.length > 0 ? modePricing : pricingItems.filter(item => !item.mode) |
| 249 | |
| 250 | if (resolution) { |
| 251 | const resolutionPricing = effectiveModePricing.filter(item => item.resolution?.toLowerCase() === resolution.toLowerCase()) |
| 252 | if (resolutionPricing.length > 0) |
| 253 | return resolutionPricing |
| 254 | } |
| 255 | |
| 256 | const genericPricing = effectiveModePricing.filter(item => !item.resolution) |
| 257 | return genericPricing.length > 0 ? genericPricing : effectiveModePricing |
| 258 | } |
| 259 | |
| 260 | /** 按目标时长获取最接近的视频定价项 */ |
| 261 | export function getNearestVideoPricing(pricing: VideoModelPricing[], duration: number) { |
| 262 | const exactMatch = pricing.find(item => item.duration === duration) |
| 263 | if (exactMatch) |
| 264 | return exactMatch |
| 265 | return [...pricing].sort( |
| 266 | (a, b) => Math.abs(a.duration - duration) - Math.abs(b.duration - duration), |
| 267 | )[0] |
| 268 | } |
| 269 | |
| 270 | /** 获取视频模型指定分辨率的每秒积分价格 */ |
| 271 | export function getVideoModelPricePerSecond( |
| 272 | model: VideoModelInfo | undefined, |
| 273 | resolution: string, |
| 274 | duration: number, |
| 275 | isVideoEditMode: boolean, |
| 276 | ) { |
| 277 | if (!model) |
| 278 | return null |
| 279 | |
| 280 | const pricing = filterVideoPricingByResolution(model.pricing, resolution, isVideoEditMode) |
| 281 | const nearestPricing = getNearestVideoPricing(pricing, duration) |
| 282 | if (!nearestPricing || nearestPricing.duration <= 0) |
| 283 | return null |
| 284 | |
| 285 | return nearestPricing.price / nearestPricing.duration |
| 286 | } |
| 287 | |
| 288 | // ==================== 视频比例匹配 ==================== |
| 289 | |
| 290 | /** 将视频宽高匹配到最近的支持比例 */ |
| 291 | export function matchClosestRatio(width: number, height: number, supportedRatios: Set<string>): string | null { |
| 292 | const videoRatio = width / height |
| 293 | let closest: string | null = null |
| 294 | let minDiff = Infinity |
| 295 | for (const label of supportedRatios) { |
| 296 | const [w, h] = label.split(':').map(Number) |
| 297 | const ratio = w! / h! |
| 298 | const diff = Math.abs(videoRatio - ratio) |
| 299 | if (diff < minDiff) { |
| 300 | minDiff = diff |
| 301 | closest = label |
| 302 | } |
| 303 | } |
| 304 | return closest |
| 305 | } |
| 306 | |
| 307 | // ==================== 图文模型常量 ==================== |
| 308 | |
| 309 | export const DEFAULT_MAX_INPUT_IMAGES = 14 |
| 310 | |
| 311 | export const IMAGE_TEXT_ASPECT_RATIOS = [ |
| 312 | { label: '1:1', w: 14, h: 14 }, |
| 313 | { label: '3:4', w: 12, h: 16 }, |
| 314 | { label: '4:3', w: 16, h: 12 }, |
| 315 | { label: '9:16', w: 10, h: 18 }, |
| 316 | { label: '16:9', w: 18, h: 10 }, |
| 317 | ] |
| 318 | |
| 319 | /** 获取图片模型支持的比例，优先使用 pricing API 返回值，缺失时使用旧兜底 */ |
| 320 | export function getImageModelAspectRatios(model?: ImageModelInfo): string[] { |
| 321 | const supported = getUniqueStrings(model?.supportedAspectRatios?.filter(Boolean) ?? []) |
| 322 | if (supported?.length) |
| 323 | return supported |
| 324 | return IMAGE_TEXT_ASPECT_RATIOS.map(ratio => ratio.label) |
| 325 | } |
| 326 | |
| 327 | export function getImageModelsCommonAspectRatios(models: ImageModelInfo[]): string[] { |
| 328 | return getCommonStrings(models.map(model => getImageModelAspectRatios(model))) |
| 329 | } |
| 330 | |
| 331 | export function getImageModelsCommonResolutions(models: ImageModelInfo[]): string[] { |
| 332 | return getCommonStrings(models.map(model => model.pricing.map(item => item.resolution).filter(Boolean))) |
| 333 | } |
| 334 | |
| 335 | export function getImageModelsMaxInputImages(models: ImageModelInfo[]): number { |
| 336 | if (models.length === 0) |
| 337 | return DEFAULT_MAX_INPUT_IMAGES |
| 338 | |
| 339 | return Math.min(...models.map(model => model.maxInputImages ?? DEFAULT_MAX_INPUT_IMAGES)) |
| 340 | } |
| 341 | |
| 342 | export const IMAGE_COUNT_LIMITS = { min: 1, max: 9 } |
| 343 |