数字人项目迁移
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218
digitalhuman/service/video_service.go
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218
digitalhuman/service/video_service.go
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package service
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import (
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"context"
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"digital-human/consts"
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"digital-human/dao"
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"digital-human/model/dto"
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"encoding/json"
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"errors"
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"github.com/gogf/gf/v2/errors/gerror"
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"github.com/gogf/gf/v2/frame/g"
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"github.com/gogf/gf/v2/os/gtime"
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"github.com/gogf/gf/v2/util/gconv"
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)
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type video struct{}
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// Video 视频服务
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var Video = new(video)
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// Create 创建视频
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func (s *video) Create(ctx context.Context, req *dto.CreateVideoReq) (res *dto.CreateVideoRes, err error) {
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// 验证数字人形象是否存在且启用
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digitalHumanOne, err := dao.DigitalHuman.GetOne(ctx, req.DigitalHumanID)
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if err != nil {
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return nil, gerror.Wrap(err, "数字人形象不存在")
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}
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if digitalHumanOne.Status != consts.DigitalHumanStatusActive {
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return nil, errors.New("数字人形象未启用")
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}
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// 验证音频是否存在且已生成成功
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audioOne, err := dao.Audio.GetOne(ctx, req.AudioID)
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if err != nil {
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return nil, gerror.Wrap(err, "音频不存在")
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}
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if audioOne.Status != consts.AudioStatusSuccess {
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return nil, errors.New("音频未生成成功，无法合成视频")
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}
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// 创建视频记录（初始状态为生成中）
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ids, err := dao.Video.Insert(ctx, req)
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if err != nil {
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return nil, err
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}
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// 保存视频ID（PostgreSQL 使用 int64）
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videoID := ids[0].(int64)
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// 异步生成视频
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go s.generateVideo(ctx, req.DigitalHumanID, digitalHumanOne.Name, req.AudioID, audioOne.AudioURL, audioOne.Duration, req.Resolution, videoID)
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res = &dto.CreateVideoRes{
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Id: videoID,
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}
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return
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}
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// generateVideo 生成视频（异步处理）
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func (s *video) generateVideo(ctx context.Context, digitalHumanID int64, digitalHumanName string, audioID int64, audioURL string, duration int, resolution consts.Resolution, videoID int64) {
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// 更新视频状态，设置音频URL和时长
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_, _ = dao.Video.UpdateStatus(ctx, videoID, consts.VideoStatusGenerating, "", audioURL, duration, "", "")
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// 调用数字人形象与音频合成服务
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videoURL, thumbnailURL, externalTaskID, err := s.synthesizeVideo(ctx, digitalHumanID, audioURL, resolution)
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if err != nil {
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// 视频合成失败
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_, _ = dao.Video.UpdateStatus(ctx, videoID, consts.VideoStatusFailed, "视频合成失败: "+err.Error(), "", 0, "", "")
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return
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}
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// 更新视频生成状态为成功
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_, _ = dao.Video.UpdateStatus(ctx, videoID, consts.VideoStatusSuccess, "", videoURL, duration, thumbnailURL, externalTaskID)
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}
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// synthesizeVideo 合成视频（模拟）
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func (s *video) synthesizeVideo(ctx context.Context, digitalHumanID int64, audioURL string, resolution consts.Resolution) (videoURL string, thumbnailURL string, externalTaskID string, err error) {
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// TODO: 调用真实的数字人视频合成服务API
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// 这里模拟返回
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g.Log().Info(ctx, "合成视频，数字人ID:", digitalHumanID, "音频URL:", audioURL, "分辨率:", resolution)
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// 模拟外部任务ID（使用雪花算法或UUID）
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externalTaskID = gconv.String(digitalHumanID) + "-" + gconv.String(gtime.Timestamp())
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// 模拟视频URL（实际应该从视频合成服务获取）
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videoURL = "https://example.com/video/" + externalTaskID + ".mp4"
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// 模拟缩略图URL
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thumbnailURL = "https://example.com/video/" + externalTaskID + "_thumb.jpg"
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return videoURL, thumbnailURL, externalTaskID, nil
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}
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// List 获取视频列表
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func (s *video) List(ctx context.Context, req *dto.ListVideoReq) (res *dto.ListVideoRes, error error) {
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videoList, total, err := dao.Video.List(ctx, req)
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if err != nil {
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return
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}
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res = &dto.ListVideoRes{
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Total: total,
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}
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b, err := json.Marshal(videoList)
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if err != nil {
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return
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}
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err = json.Unmarshal(b, &res.List)
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return
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}
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// GetOne 获取单个视频
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func (s *video) GetOne(ctx context.Context, id int64) (*dto.GetVideoRes, error) {
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videoOne, err := dao.Video.GetOne(ctx, id)
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if err != nil {
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return nil, err
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}
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var createdAt, updatedAt *gtime.Time
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if videoOne.CreatedAt != nil {
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createdAt = videoOne.CreatedAt
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}
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if videoOne.UpdatedAt != nil {
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updatedAt = videoOne.UpdatedAt
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}
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return &dto.GetVideoRes{
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ID: videoOne.Id,
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Name: videoOne.Name,
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Description: videoOne.Description,
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DigitalHumanID: videoOne.DigitalHumanID,
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DigitalHumanName: videoOne.DigitalHumanName,
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AudioID: videoOne.AudioID,
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AudioURL: "",
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VideoURL: videoOne.VideoURL,
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Status: videoOne.Status,
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ErrorMsg: videoOne.ErrorMsg,
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Duration: videoOne.Duration,
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Resolution: videoOne.Resolution,
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ThumbnailURL: videoOne.ThumbnailURL,
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ExternalTaskID: videoOne.ExternalID,
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CreatedAt: createdAt,
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UpdatedAt: updatedAt,
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}, nil
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}
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// Update 更新视频
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func (s *video) Update(ctx context.Context, req *dto.UpdateVideoReq) error {
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// 先获取原始视频信息
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videoOne, err := dao.Video.GetOne(ctx, req.ID)
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if err != nil {
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return gerror.Wrap(err, "获取原始视频信息失败")
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}
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// 修改字段
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if !g.IsEmpty(req.Name) {
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videoOne.Name = req.Name
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}
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if !g.IsEmpty(req.Description) {
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videoOne.Description = req.Description
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}
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return dao.Video.Update(ctx, req.ID, videoOne)
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}
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// Delete 删除视频
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func (s *video) Delete(ctx context.Context, id int64) error {
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return dao.Video.Delete(ctx, id)
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}
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// Generate 重新生成视频
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func (s *video) Generate(ctx context.Context, req *dto.GenerateVideoReq) (res *dto.GenerateVideoRes, err error) {
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// 获取视频信息
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videoOne, err := dao.Video.GetOne(ctx, req.ID)
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if err != nil {
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return nil, gerror.Wrap(err, "获取视频信息失败")
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}
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// 验证音频是否仍然有效（已生成成功）
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if videoOne.AudioID != 0 {
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audioOne, err := dao.Audio.GetOne(ctx, videoOne.AudioID)
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if err != nil {
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return nil, gerror.Wrap(err, "获取音频信息失败")
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}
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if audioOne.Status != consts.AudioStatusSuccess {
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return nil, errors.New("音频未生成成功，无法合成视频")
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}
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}
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// 重置状态为生成中
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_, err = dao.Video.UpdateStatus(ctx, req.ID, consts.VideoStatusGenerating, "", "", 0, "", "")
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if err != nil {
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return nil, err
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}
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// 异步重新生成视频
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go s.generateVideo(ctx, videoOne.DigitalHumanID, videoOne.DigitalHumanName, videoOne.AudioID, "", videoOne.Duration, videoOne.Resolution, req.ID)
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res = &dto.GenerateVideoRes{
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TaskID: gconv.String(req.ID),
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}
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return
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}
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// GetStatusOptions 获取状态选项
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func (s *video) GetStatusOptions(ctx context.Context, req *dto.GetVideoStatusOptionsReq) (res *dto.GetVideoStatusOptionsRes, err error) {
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_ = ctx
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_ = req
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res = new(dto.GetVideoStatusOptionsRes)
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res.Options = consts.GetAllVideoStatusKeyValue()
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return res, nil
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}
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// GetResolutionOptions 获取分辨率选项
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func (s *video) GetResolutionOptions(ctx context.Context, req *dto.GetResolutionOptionsReq) (res *dto.GetResolutionOptionsRes, err error) {
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_ = ctx
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_ = req
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res = new(dto.GetResolutionOptionsRes)
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res.Options = consts.GetResolutionOptions()
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return res, nil
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}
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