mirror of
https://github.com/xiaoqidun/ofdgo.git
synced 2026-10-29 16:59:27 +08:00
47 lines
1.5 KiB
Go
47 lines
1.5 KiB
Go
// Copyright 2025-2026 肖其顿 (XIAO QI DUN)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ofdgo
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import (
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"fmt"
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"io"
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)
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// Media 获取已加载的音视频资源，页面资源须先读取所属页面
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// 不加载注解或签名
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// 入参: id 资源标识
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// 返回: MultiMedia 资源信息, error 资源缺失或类型错误
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func (r *Reader) Media(id string) (MultiMedia, error) {
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if _, err := r.docStructure(); err != nil {
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return MultiMedia{}, err
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}
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media, ok := resourceValue(r.mediaCache, id)
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if !ok || media.Type != "Audio" && media.Type != "Video" {
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return MultiMedia{}, fmt.Errorf("audio or video resource %q is unavailable", id)
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}
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return media, nil
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}
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// OpenMedia 打开文档内音视频原始数据，不解码或执行播放
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// 入参: id 资源标识
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// 返回: io.ReadCloser 数据流，由调用方关闭, error 资源或文件读取错误
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func (r *Reader) OpenMedia(id string) (io.ReadCloser, error) {
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media, err := r.Media(id)
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if err != nil {
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return nil, err
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}
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return r.openFile(r.ResPath(media.MediaFile))
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}
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