更新记录

1.1.0(2026-09-16) 下载此版本

本版相对 1.0.0(已上架)的唯一主题:传统 uni-app vue2 工程可用。 1.0.0 上架时机早于本项工作(其线上平台表中 Vue2 仍为 -),故独立发版。

Vue2 工程支持验证通过(含 4 个 vue2 专属坑的修复)

传统 uni-app vue2 工程里完成真机验证:App 启动、组件挂载、融合文字/头像、mode 0 音频、 无音轨素材自动 remux、帧数与比例全部正常。过程中修掉 4 个只在 vue2 复现的问题:

  1. main.jsvueVersion 必须匹配:vue2 要用 App.mpType='app' + new Vue({...App}); 用 Vue3 的 createSSRApp 会报 Cannot set properties of undefined (setting 'query') (框架挂 $mp 的 mixin 未注册所致,排查过程见 TROUBLESHOOTING 附·A);
  2. 事件回调别取页面生命周期名onReady 等会被 vue2 编译器从 methods 摘走 ⇒ 报 Page "xxx" does not have a method "onReady";demo 统一改为 vap* 前缀;
  3. 方法名不能与 data 键同名Method "xxx" has already been defined as a data property)—— 已加静态检查 check-demo-page.sh 兜住;
  4. :style 对象对原生组件在 vue2 下不生效<canvas> 的尺寸改为字符串 style, 并给 .vap-canvaswidth/height:100% 兜底(宿主已有确定宽高)。

1.0.0(2026-09-16) 下载此版本

功能

  • 合并原 axen-vap-h5 与 axen-vap-mp 为统一组件(条件编译分流)。
  • H5:vap-web(WebGL)引擎(static/vap.min.js 随包分发)。
  • 微信小程序:自研引擎(wx.createVideoDecoder + Canvas2D,r 通道遮罩合成)。
  • 支持透明度渲染、融合元素(头像/昵称/图片/文字)、循环、完整事件回调。
  • uni-app x 项目请使用 axen-vap-x(五端付费版)。

微信端:新增音频(所有素材统一 mode 0 + MediaAudioPlayer

  • 此前微信端完全没有音频实现common/*.jsMediaAudioPlayer / createInnerAudioContext 出现 0 次,readme 也把 mute 标注为「静音(H5)」)—— vapx.mp4 的音轨被直接丢掉。
  • 现在所有素材统一走 mode 0 + MediaAudioPlayer(与付费版 axen-vap-x 同一链路): 音频由系统播放,同时作为帧推进的主时钟(音画天然同步);有音轨素材因此出声mute=true 时音量置 0 但仍播放(它是主时钟,停掉就没有帧了)。
  • 不做模式分流(重要,防回退):本版曾按「扫描到无音轨 → 分流 mode 1 + fps 门控」实现, 这恰恰是付费版明确否决并记录防回退的方案(其 changelog「被否决的中间方案」: 该方案在 Node 状态机 8 例全绿,真机仍 78/80)。无音轨素材在 mode 0 / mode 1 下 都会丢流尾 1~2 帧,而 mode 1 还额外失去音频时钟的节奏精度 —— 分流没有收益。已统一为 mode 0。
  • 音轨探测(common/mp4-audio.js:最小扫 moov → trak → mdia → hdlrhandler_type 是否为 soun, 不解码、不解析 mdat)保留,但仅用于诊断日志(也是将来接 remux 的挂点); 同一路径只探测一次。已用官方素材实测demo.mp4 → 无音轨 ✓、vapx.mp4 → 有音轨 ✓。
  • 已知限制:无音轨素材可能少 1~2 帧尾帧(VideoDecoder 在流尾 EOS 会吞掉硬解管道最后帧)。 付费版用原地 remux 加静音 AAC 轨解决(实测 80/80、240/240),免费版暂未移植。
  • 兜底:mode 0 若 900ms 内一帧都取不到 → 回退 mode 1(画面正常、无声音),仅"保命"用。
  • 起播判据修正:一帧都没拿到时绝不再判定"播放结束"(否则 mode 0 起播的几百毫秒会被误判成播完 → 上层立刻关闭覆盖层,表现为「画面没出来」);改为 3s 仍无帧才报错;已播过帧后 600ms 无新帧才收尾。

日志默认静默 + 演示页清理 + 素材缓存改稳定路径

  • 日志默认静默:新增 common/vap-log.js 统一出口,默认不打印(付费版做法:其发布产物里 vapLog 是空实现)。打开方式:uni.$vapDebug = trueVapLog.setDebug(true)warn/error 始终输出。此前排查用的十几行 console.log 会直接刷给买家,现已收敛。
  • 演示页清理:删掉调试期加的「微信端音频」开关按钮(组件默认已是 mode 0,无需演示切换); 顶部显式 uni.$vapDebug = true —— demo 保留详细日志,买家工程保持安静。
  • 素材缓存改稳定路径:微信端把下载的素材落到 USER_DATA_PATH/vap-cache/src/(稳定文件名)。 此前 wx.downloadFile 每次给的临时文件名都不同 → 组件 remux 出的 .sil.mp4 随之换名 → 每次播放都要重新下载 + remux,vap-cache 里还会攒下多份伴生文件。 「清空素材缓存」按钮会删掉整个 vap-cache(含 src/),一键复位。

微信端:素材不做比例适配(换素材就变形)+ 演示页写死了文字样式

  • 比例适配:合成器此前把素材 rgbFrame 直接拉伸铺满画布 —— 竖版素材(672×1504)之后再播 横版素材(736×576)会明显变形(真机反馈:"点了全屏进房动效以后再播透明动画就变形了")。 现新增 scaleType 属性(默认 aspectFit,与付费版 axen-vap-x 同名属性同默认值): aspectFit 等比装进画布留透明边 / aspectFill 等比铺满超出裁掉 / scaleToFill 拉伸铺满。 适配放在绘制阶段(与付费版一致),所以画布尺寸保持稳定(= 容器),换素材不再引起重排。 新增 scripts/sim-mp-aspect.mjs 逐模式校验适配数学(5 例:两种素材 × 三种模式)。
  • 演示页不再写死文字样式:demo 的 FULL_MIX 曾写死 color:'#FFFFFF', fontSize:32, fontWeight:'bold', 于是"字体是白的、还被裁" —— 素材 vapc 配置里本来有自己的颜色/字号,引擎还按元素矩形自适应字号 (正是为了避免裁切)。现在演示只传值不传样式;组件支持传对象覆盖样式(本实现的扩展), 但示例不该覆盖,页面源码里留了注释与示例。

微信端:音频起不来 —— MediaAudioPlayer 的方法都是 Promise,我同步调用了

  • 官方文档(MediaAudioPlayer): · 属性只有 volume(0~1),没有 paused / currentTime / duration; · start() / addAudioSource(VideoDecoder) / removeAudioSource / stop / destroy 都返回 Promise
  • 两个后果:
    1. 我此前写的"音频自检"读 paused/currentTime 判"是否在播" —— 无效判据(必然读到 undefined), 据此得出了错误结论,已删除;
    2. 真正的 bugaddAudioSource(decoder) 是异步的,我紧接着同步调用 ap.start(), 播放器可能在音源挂上之前就启动了 ⇒ 完全没有声音;而 mode 0 的帧由音频时钟推进, 时钟不走 ⇒ 帧只能慢慢滴 —— 真机日志里刷屏的 render behind, dropping frame N (late ~220ms) 正是这个症状。
  • 修复:改成 Promise 链,并带顺序兜底 —— 先试 addAudioSource → start,失败则自动换 start → addAudioSource,两条都有明确日志: · 成功:[axen-vap] 音频播放器已启动(顺序=…),volume=1 · 都失败:打印拒绝原因errMsg),并说明"该素材/该基础库下没有声音,画面不受影响"。

微信端:无音轨素材 remux 出静音音轨(对齐付费版链路)

  • 定位到一个更根本的前提:付费版"素材统一 mode 0"能成立,是因为它先给无音轨素材补了音轨。 官方 demo.mp4 没有音轨时,mode 0 缺音频时钟、且把纯视频解码器挂给 MediaAudioPlayer 本就不成立 —— 实测表现就是「画面不出来」。
  • 现在播放前对无音轨素材做原地 remux(新增 common/mp4-remux.js,纯字节数学无依赖): 在 moov 里插一条静音 AAC trak(44.1kHz mono,时长对齐视频),视频样本一个字节都不动: mdat 在末尾(faststart,官方素材即如此)→ 扩展现有 mdat;否则 → 在 EOF 追加一个新 mdat; moov 变长后逐条修正视频 stco(+Δ)、更新 mvhd.next_track_ID。 产物 = 原路径 + ".sil.mp4" 伴生文件,按路径缓存(复用第二次 0ms)。
  • 字节级验收(与付费版同一套标准)
    • demo.mp4(80 帧 / faststart):video 80/80 framemd5 逐帧一致、audio aac 44100 mono 138 帧、 全量解码零错误、vapc box 原样保留;
    • vapx.mp4 去音轨(240 帧 / 非 faststart):240/240 逐帧一致、audio 517 帧、同样零错误;
    • 耗时(node):17ms / 35ms —— 早期"逐字节 push 进 JS 数组"的写法是 62/139ms 且内存抖动大, 已改为先量长度、预分配 Uint8Arrayset() 拷贝
  • 失败即放弃并回退 mode 1(非 mp4 / co64 / 结构异常 / 读写失败),不引入新风险。
  • 新增 mpAudio 属性(默认 false):默认仍走画面最稳的 mode 1;打开后走 mode 0 + remux 的完整链路(即付费版行为)。待真机确认后再决定是否把默认改成 true

不支持的平台改为明确报错(不再静默)+ 补齐平台声明与 PLATFORMS.md

  • 组件此前在 App 原生 / nvue / 其它小程序上什么都不渲染也不报错(只有 H5、MP-WEIXIN 两个模板分支), 在 App 项目里装了只会看到一片空白,容易被当成"插件坏了"。 现在 mounted 里加了 #ifndef H5 / #ifndef MP-WEIXIN 守卫:打 console.error@errorcode: 3),把"不支持"这件事明确交出去。
  • package.jsonuni_modules.platforms 由只声明 web/mp-weixin,补齐为显式声明app(android/ios/harmony)=nnvue=nvue2=n / vue3=y、其余小程序一律 n —— 市场页面不再让买家误以为 App 可用。
  • 新增 PLATFORMS.md(readme 之前引用了它,但免费版里并不存在 → 断链): 给出完整平台矩阵、不支持的原因(App 需原生 SDK 集成;其它小程序拿不到逐帧像素)、 以及"想在 App 上用就用 axen-vap-x"。

微信端:动画不是全屏

  • 根因:模板 canvas 没有 CSS 尺寸 → 微信端 <canvas> 默认 300×150 → 画布按它渲染。
  • 修复:.vap-canvaswidth/height: 100%;尺寸兜底链改为 「props → 量到的尺寸 → 系统窗口尺寸」(量到 0 或正好 300×150 时直接用 wx.getWindowInfo()), 即使父链百分比没生效也保证全屏;dpr 上限压到 2(合成器每帧按画布缓冲干活,全屏 + dpr3 ≈3M 像素/帧)。

融合元素点击 @click(H5 + 微信两端统一)

  • 由组件统一做命中检测:画布把素材 rgbFrame 区域拉伸铺满显示区 → 点击点反推回素材坐标 → 与「当前帧」的元素矩形 frame=[x,y,w,h] 求交(vap-config.getFrameObjs 取最近关键帧, 与渲染同一套语义)→ 命中取 z 最大者 → 回传其 srcTag(如 [sImg1])。 只有调用方真的传了该元素(ext / mixData)才会命中,与渲染时「没传就跳过」一致。
  • H5:容器 @click + canvas 的 getBoundingClientRect() 换算;微信:canvas @click + boundingClientRect 换算(detail.x/y 是页面坐标)。

文字样式可运行时覆盖

  • ext / mixData 的文字项现在可传对象 { txt, color, fontSize, textAlign, fontWeight }, 覆盖 vapc 配置里的样式(语义对齐付费版 mixData)。 此前只支持字符串 → 配置里的字号/颜色改不了,表现为「传了 color/fontSize 没生效」。

H5:播放中途关闭 → 再次起播没有声音(引擎静音降级)

  • 根因在引擎vap.min.js):play() 里有一段降级 —— 只要 play() 被拒就 静默把视频静音后继续播(动画照播、无声、不回调 error):
    var t = this.video && this.video.play();
    t && t.then && t.catch(function (t) { e.video && (e.video.muted = !0, e.video.volume = 0, …) })
  • 两个触发路径
    1. precache: true 时引擎先 fetch 整个 mp4、再设 video.srcplay() 打在还没有 src 的 video 上 → 必然被拒 → 每次播放都静音(已把 demo 的 precache 撤掉,并把副作用写进 readme);
    2. 播放中途关闭:引擎 destroy() 只把 <video> 从 DOM 摘掉、不 pause → 那个脱离文档的 video 仍在后台出声、占着媒体会话 → 下次起播无声。
  • 组件侧兜底(浏览器只在「起播」时校验自动播放策略,对已在播放的媒体解静音是允许的):
    • _guardH5Audio() 持续盯住引擎注入的 <video>(它在 document.body 上、异步出现), 挂 volumechange 监听 → 引擎任何时候把它静音都立刻解掉;
    • destroy()pause() + 静音本实例的 video,再销毁引擎(引用提前抓住 —— DOM 摘掉就 query 不到了);
    • 点击组件时也尝试解静音(用户手势,给 iOS 这类"每个媒体元素都要手势"的浏览器留一条恢复路径);
    • mute 属性为 true 时完全不介入;排查日志每实例只打一条。

H5:卡顿与画布尺寸

  • 画布尺寸按【容器尺寸 + 素材宽高比】contain(对齐付费版 web 实现)。旧实现直接拿容器尺寸当画布: 容器是全屏覆盖层时画布=整个视口 —— 竖版素材在桌面窗口里要多渲染约 3.7 倍像素。
  • canvas 不再被 CSS 拉伸到满容器(改 flex 居中、保持自身尺寸):旧行为每帧合成一整屏的缩放纹理, 窗口越大越卡,素材还会变形。
  • 容器补 width/height: 100%:旧实现容器没有高度 → 尺寸量到 0 → 走 || 375 兜底算出很小的画布, 且 flex 居中以 0 高为基准导致画布贴顶(去掉 CSS 拉伸后暴露出来的问题)。
  • accurate 默认改为 true(引擎据此启用 requestVideoFrameCallback;关掉帧推进变粗会顿)。
  • 默认不开 precache(见上面的静音降级)。

微信端:卡帧(时间基准漂移 + 每帧大块分配/拷贝)

  • 时间基准漂移(体感最明显):_tick 旧实现是「渲染完再固定等 1000/fps」, 真实帧周期 = 处理耗时 + 间隔 → 处理 30ms 时 240 帧素材(应 12.0s)实际 19.2s,越播越慢。 改为固定节拍nextDue 每帧只加 interval)+ 落后 ≥1 个间隔就只消费不渲染 (VAP 每帧是独立 I420,丢渲染不影响后续帧;frameIndex 仍按真实帧号递增 → 融合元素关键帧查找依然正确)。 模拟:渲染 30ms/帧 → 12.0s 零丢帧;60ms → 12.0s 丢 40 帧;100ms → 12.0s 丢 120 帧。时长恒准。
  • 每帧的大块分配/拷贝(GC 与 CPU 压力):整帧 createImageData + data.set(≈6.6MB)、 遮罩与每个融合元素各自再一份、tmpCanvas 尺寸每帧重设(重建画布缓冲)、require() 写在每帧里、 objs.slice().sort() 每帧分配 —— 全部改为按尺寸复用 / 顶层 import / 按关键帧缓存排序结果。

微信端:解码器生命周期修复(2026-09-15)

  • playerStop failed 不再刷屏wx.createVideoDecoder()stop()/remove() 返回 Promise, 失败时不同步抛出(同步 try/catch 抓不到)→ 未处理的 rejection 被小程序当运行时错误上报。 现统一 swallow() 显式 catch,且 stop()remove() 都调用。
  • start 失败后不再「越播越坏」:旧实现只回调 onError、不回收解码器实例,连续几次后新建解码器的 start() 会被一律拒绝(播放器彻底失效)。现在失败/异常统一 _release()
  • 停止/重播作废在途回调:新增世代号 _gen,避免播放器被卸载后旧回调继续往已释放的解码器上取帧/挂音频。
  • start() 增补 Promise 形态处理:部分基础库版本只返回 Promise 而不回调 fail,此前会静默卡住。

H5 引擎分发与小程序端编译(2026-09-14,新建可运行 demo 时暴露)

  • H5 引擎曾不进产物vap.min.js 原放在 vap/ 下,非 static/ 目录的 js 不会被拷进产物 → dev 能跑、线上 404。现随 static/vap.min.js 分发,加载路径多候探测。
  • H5 工厂取法修正vap.min.js 是 UMD,挂到 window 的是命名空间对象 { canWebGL, default }, 真正工厂是 Vap.default;另:工厂创建即播放,autoplay=false 时改为显式 pause()
  • 小程序端编译不过common/*.js 原为 CJS,而组件用 ESM import → 5 个文件统一转 ESM, 且 player.js 只在 #ifdef MP-WEIXIN 下 import(H5 不走自研引擎)。
  • 新增 uni-vap-demo/ 工程内的可运行 demo(H5 + 微信两端),也是本插件的发布源目录 (HBuilderX 里对 uni_modules/axen-vap 右键「发布插件」)。

平台兼容性

uni-app(3.8.4)

Vue2 Vue2插件版本 Vue3 Vue3插件版本 Chrome Chrome插件版本 Safari Safari插件版本 app-vue app-nvue Android iOS 鸿蒙
1.1.0 1.0.0 1.0.0 1.0.0 × × × × ×
微信小程序 微信小程序插件版本 支付宝小程序 抖音小程序 百度小程序 快手小程序 京东小程序 鸿蒙元服务 QQ小程序 飞书小程序 小红书小程序 快应用-华为 快应用-联盟
1.0.0 × × × × × × × × × × ×

uni-app x

Chrome Safari Android iOS 鸿蒙 微信小程序
× × × × × ×

axen-vap VAP 视频动画特效组件(H5 + 微信小程序 · 免费版)

传统 uni-app 项目的 VAP 动效组件:H5(vap-web / WebGL)+ 微信小程序(自研引擎:VideoDecoder 硬解 + Canvas2D,无 WebGL/WASM 依赖)。 uni-app x 项目请用付费五端版 axen-vap-x(App 原生三端 + H5 + 微信)。 为什么只有微信:11 家小程序中仅微信开放逐帧视频解码 API(wx.createVideoDecoder),其余平台 video 为黑盒。完整矩阵见 PLATFORMS.md

支持平台(免费版只有两头)

平台 支持
H5 ✅(Vue2 / Vue3 均可)
微信小程序 ✅ —— Vue2 与 Vue3 都已真机验证通过(2026-09-16)
App 原生(Android / iOS / 鸿蒙)、nvue、其它小程序、uni-app x ❌ —— App 原生三端请用付费版 axen-vap-x

Vue2 工程的两个注意点(uni-app 规则,非本插件问题,demo 已规避)

  1. main.js 必须与 manifest.jsonvueVersion 匹配:vue2 用 App.mpType='app' + new Vue({...App}); 若用 Vue3 的 createSSRApp,会报 Cannot set properties of undefined (setting 'query')(TROUBLESHOOTING 附·A)。
  2. 事件回调别取页面生命周期名onReady/onShow/onLoad/onError…),vue2 编译器会把它们从 methods 里摘走当生命周期用;也别与 data 键同名。统一加前缀(如 @ready="vapReady")即可。

不支持的平台不会静默:组件会打 console.error@errorcode: 3); uni_modules.platforms 里也把 app / nvue / 其它小程序显式标为不支持。 原因与完整矩阵见 PLATFORMS.md

使用(easycom)

<template>
    <view style="width:750rpx;height:340rpx">
        <axen-vap
            :src="src"
            :config="config"
            :ext="ext"
            :loop="false"
            :autoplay="true"
            @started="onStarted"
            @ended=""
            @error="onError"
        />
    </view>
</template>

<script>
    export default {
        data() {
            return {
                src: '/static/demo.mp4',
                config: require('@/static/demo.json'),  // 或 JSON 字符串
                ext: {
                    imgUser: '/static/user.png',   // 融合头像(键=srcTag去方括号)
                    textUser: '星河Momo'           // 融合昵称
                }
            }
        }
    }
</script>

引擎分发(重要)

  • H5 引擎 vap.min.js 必须随 static/ 目录分发(构建后落在 uni_modules/axen-vap/static/vap.min.js): 非 static/ 目录下的 js 不会进产物,写成其它路径在 dev 能跑、线上必然 404。
  • 小程序端为自研引擎(common/*.js,ESM 模块),无需额外文件。

运行示例

本插件所在工程 uni-vap-demo/ 就是可运行 demo(H5 + 微信小程序):

# HBuilderX 打开 vap-plugin/axen-vap,然后:
#   运行 → 运行到浏览器 → Chrome
#   运行 → 运行到小程序模拟器 → 微信开发者工具(勾选「不校验合法域名」)

属性

属性 类型 默认 说明
src String '' mp4 本地路径(网络先 uni.downloadFile
config String/Object null vapc 配置(H5 与微信通用)
ext Object null 融合参数(H5 键值对 / 微信同语义)。值可以是字符串(图片路径),也可以是对象 { txt, color, fontSize, textAlign, fontWeight } —— 对象用于运行时覆盖文字样式
mixData Array [] 融合参数(微信端,[{tag,imgUri,txt,color,fontSize,textAlign,fontWeight}],优先于 ext)
loop Boolean/Number false 循环
autoplay Boolean true 自动播放
mute Boolean false 静音。H5:引擎静音;微信端:MediaAudioPlayer 音量置 0(音频仍在播 —— 它是 mode 0 的主时钟,停掉就没有帧了)
fps Number 20 素材 fps
width/height Number 0 显示尺寸。0 = 按【容器尺寸 + 素材宽高比】contain 计算 —— 不会按容器满格渲染(满格时全屏容器=整屏像素,很吃力)
accurate Boolean true H5:引擎精确模式,开启后引擎用 requestVideoFrameCallback 推进帧;关掉会顿,非必要别关(付费版 web 侧硬编码 true)
scaleType String aspectFit 素材适配方式(与付费版同名属性同默认值):aspectFit 等比装进容器、留透明边(推荐);aspectFill 等比铺满、超出裁掉;scaleToFill 拉伸铺满(会变形)
mpAudio Boolean true 微信端音频开关(默认与付费版同链路)。true = mode 0 + MediaAudioPlayer(有音轨素材出声、音频作主时钟;无音轨素材自动 remux 补静音音轨);false = mode 1无声音,仅在不要声音/排查问题时用)
precache Boolean false H5:先把整个 mp4 抓成 blob 再播。⚠️ 有副作用:引擎是先 fetch 再设 video.src,而它的 play() 可能打在没有 src 的 video 上被拒 → 引擎会走进"静音降级"分支(表现为首播无声)。组件已加兜底(起播后自动恢复声音),但非必要不建议开

事件

@ready @mounted(H5 实例)@started @frame({index})@ended/@finish @error @destroy @click({tag})

@click(点击融合元素)H5 与微信两端都支持:命中检测按「当前帧的元素矩形」在组件内完成 (画布把素材 rgbFrame 拉伸铺满显示区,点击点反推回素材坐标后与矩形求交,命中取最上层, 回传该元素的 srcTag,如 [sImg1])。只有调用方真的传了该元素(ext / mixData)才会命中, 与渲染时「没传就跳过」的规则一致。被覆盖层挡住的场景请参照 demo:点击覆盖层关闭、点元素上报 tag。

声音(两端都支持)

有音轨的素材(如官方 vapx.mp4 无音轨的素材(如官方 demo.mp4
H5 ✅ 出声(vap-web 引擎) 本来就无声
微信小程序 ✅ 出声:VideoDecoder mode 0 + MediaAudioPlayer音频由系统播放并作为帧推进的主时钟(音画天然同步) 静音;仍走 mode 0(与付费版同链路),画面节奏与有音轨素材一致
  • 模式不分流:所有素材统一 mode 0 + MediaAudioPlayer(付费版 axen-vap-x 的做法)。 「探测到无音轨就分流 mode 1 + fps 门控」是被否决的方案 —— 无音轨素材在两种模式下都会丢 流尾 1~2 帧(真机实测 demo.mp4 稳定 78/80),而 mode 1 还额外失去音频时钟的节奏精度, 分流没有收益、只会制造两端差异。
  • 组件仍会扫一遍 mp4 的 box(moov/trak/mdia/hdlrhandler_type 是否为 soun, 见 common/mp4-audio.js)—— 仅用于诊断日志,不作为模式选择的依据;同一路径只探测一次。
  • 无音轨素材(如官方 demo.mp4mpAudio=true 时会在播放前原地 remux 出一条静音 AAC 轨, 产物为 原路径 + ".sil.mp4" 伴生文件(按路径缓存,重播直接用伴生文件),之后与有音轨素材 完全同链路 —— 这样 mode 0 才有音频时钟把流尾帧完整 flush 出来(否则 demo.mp4 会稳定少 1~2 帧)。 实现见 common/mp4-remux.js:纯字节数学无依赖,视频样本一个字节都不动, remux 失败即放弃并回退 mode 1
  • 兜底:若 mode 0 在该设备/素材上完全取不到帧,900ms 后回退 mode 1(画面正常、无声音)—— 这是"保命"路径,不是常规路径。
  • 取帧节拍(照付费版 axen-vap-x 的参考实现):mode 0 固定 8ms 轮询 + pkPts 去重 (pts 未变即不是新帧,不渲染),帧节奏由音频时钟决定,绝不丢帧mode 1 解码尽快、 按 vapc fps 定时上屏。收尾以 vapc 的总帧数info.f)为主判据。
  • @finishtotalFrameCount 上报的是素材总帧数info.f)——注意组件逐帧回调的 index0 基序号(第 1 帧 index=0),自行展示时需 +1,否则 240 帧的素材会显示成 239。
  • common/mp4-remux.js 已完成字节级验收:ffprobe 全量解码零错误、视频流 framemd5 逐帧一致vapc box 原样保留;覆盖 faststart 与非 faststart 两种布局、80 帧与 240 帧两种素材。

日志

组件默认静默(与付费版 axen-vap-x 一致 —— 它的发布产物里 vapLog 就是空实现)。 排查问题时两种打开方式,都不用改插件源码:

  • 页面里设置 uni.$vapDebug = true(任意位置,设置之后开始的播放即生效);
  • 或调用统一出口 VapLog.setDebug(true)common/vap-log.js 的默认导出)。

warn / error 始终输出(真正的问题不该被静默): 素材 remux 失败、音频挂载失败、融合图片加载失败、播放提前结束等都会照常提示。

本仓库的 demo 工程默认打开了详细日志(pages/index/index.vue 顶部一行),便于对照排查; 买家的正式工程不需要那行。

⚠️ 事件回调别取页面生命周期名@ready="onReady" 这类命名在 uni-app vue2 工程里会踩坑 —— vue2 编译器把 onReady/onShow/onLoad/onError 等名字从 methods摘走当页面生命周期用, 于是组件 emit 时页面找不到该方法,报 Page "pages/xxx" does not have a method "onReady"。 统一加前缀(如 @ready="vapReady")即可绕开。

方法(ref)

play() pause() stop() setTime(s)(H5)on(type,cb)(H5)destroy()

平台说明

平台 引擎
H5 vap-web(WebGL,vap/vap.min.js 内嵌)
微信小程序 自研(common/:VideoDecoder + Canvas2D + r通道遮罩)
其他小程序 ❌ 平台无逐帧解码 API(配 SVGA/PAG)

微信端注意事项

  • 主包 2MB 限制:mp4 素材建议放服务器,运行时 uni.downloadFile
  • srcTag 与融合键对应:[imgUser] → ext 的 imgUser

许可证

  • H5 内核:腾讯 VAP web 版(MIT)— LICENSE-tencent-vap.txt
  • 微信端引擎:自研(算法蓝本源自官方 MIT 源码的 Canvas2D 翻译)

隐私、权限声明

1. 本插件需要申请的系统权限列表:

无需系统权限。

2. 本插件采集的数据、发送的服务器地址、以及数据用途说明:

本组件不采集任何数据。播放资源仅使用调用方传入的路径。

3. 本插件是否包含广告,如包含需详细说明广告表达方式、展示频率:

许可协议

Tencent is pleased to support the open source community by making VAP available.

Copyright (C) 2020 Tencent. All rights reserved.

VAP is licensed under the the MIT except for the third-party components listed below.

Terms of the MIT:

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Other dependencies and licenses:

Open Source Software Licensed under the GNU General Public License version 2 or later:

  1. ffmpeg Copyright (C) Ffmpeg Project Source code of this software can be obtained from: https://github.com/FFmpeg/FFmpeg/tree/n4.2

Most files in FFmpeg are under the GNU Lesser General Public License version 2.1 or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to FFmpeg.

Some optional parts of FFmpeg are licensed under the GNU General Public License version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of these parts are used by default, you have to explicitly pass --enable-gpl to configure to activate them. In this case, FFmpeg's license changes to GPL v2+.

Specifically, the GPL parts of FFmpeg are:

libpostproc optional x86 optimization in the files libavcodec/x86/flac_dsp_gpl.asm libavcodec/x86/idct_mmx.c libavfilter/x86/vf_removegrain.asm the following building and testing tools compat/solaris/make_sunver.pl doc/t2h.pm doc/texi2pod.pl libswresample/swresample-test.c tests/checkasm/* tests/tiny_ssim.c the following filters in libavfilter: vf_blackframe.c vf_boxblur.c vf_colormatrix.c vf_cover_rect.c vf_cropdetect.c vf_delogo.c vf_eq.c vf_find_rect.c vf_fspp.c vf_geq.c vf_histeq.c vf_hqdn3d.c vf_interlace.c vf_kerndeint.c vf_mcdeint.c vf_mpdecimate.c vf_owdenoise.c vf_perspective.c vf_phase.c vf_pp.c vf_pp7.c vf_pullup.c vf_repeatfields.c vf_sab.c vf_smartblur.c vf_spp.c vf_stereo3d.c vf_super2xsai.c vf_tinterlace.c vf_uspp.c vsrc_mptestsrc.c Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then the configure parameter --enable-version3 will activate this licensing option for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts, COPYING.GPLv3 to learn the exact legal terms that apply in this case.

There are a handful of files under other licensing terms, namely:

The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for licensing details. Specifically note that you must credit the IJG in the documentation accompanying your program if you only distribute executables. You must also indicate any changes including additions and deletions to those three files in the documentation. tests/reference.pnm is under the expat license. External libraries FFmpeg can be combined with a number of external libraries, which sometimes affect the licensing of binaries resulting from the combination.

Compatible libraries The following libraries are under GPL:

frei0r libcdio librubberband libvidstab libx264 libx265 libxavs libxvid When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by passing --enable-gpl to configure.

The OpenCORE and VisualOn libraries are under the Apache License 2.0. That license is incompatible with the LGPL v2.1 and the GPL v2, but not with version 3 of those licenses. So to combine these libraries with FFmpeg, the license version needs to be upgraded by passing --enable-version3 to configure.

Incompatible libraries

There are certain libraries you can combine with FFmpeg whose licenses are not compatible with the GPL and/or the LGPL. If you wish to enable these libraries, even in circumstances that their license may be incompatible, pass --enable-nonfree to configure. This will cause the resulting binary to be unredistributable.

The Fraunhofer FDK AAC and OpenSSL libraries are under licenses which are incompatible with the GPLv2 and v3. To the best of our knowledge, they are compatible with the LGPL.

GNU GENERAL PUBLIC LICENSE Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

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  1. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally.

                        NO WARRANTY
  2. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

  3. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

                 END OF TERMS AND CONDITIONS
    
        How to Apply These Terms to Your New Programs

    If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.

    To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.> Copyright (C)

    This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this when it starts in an interactive mode:

Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.

The hypothetical commands show w' andshow c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than show w' andshow c'; they could even be mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker.

, 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things. To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others. For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it. For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions. Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users. Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS 0. Definitions. "This License" refers to version 3 of the GNU General Public License. "Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor masks. "The Program" refers to any copyrightable work licensed under this License. Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals or organizations. To "modify" a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a "modified version" of the earlier work or a work "based on" the earlier work. A "covered work" means either the unmodified Program or a work based on the Program. To "propagate" a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well. To "convey" a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying. An interactive user interface displays "Appropriate Legal Notices" to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion. 1. Source Code. The "source code" for a work means the preferred form of the work for making modifications to it. "Object code" means any non-source form of a work. A "Standard Interface" means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language. The "System Libraries" of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A "Major Component", in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it. The "Corresponding Source" for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work. The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source. The Corresponding Source for a work in source code form is that same work. 2. Basic Permissions. All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law. You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you. Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary. 3. Protecting Users' Legal Rights From Anti-Circumvention Law. No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures. When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures. 4. Conveying Verbatim Copies. You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program. You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee. 5. Conveying Modified Source Versions. You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions: a) The work must carry prominent notices stating that you modified it, and giving a relevant date. b) The work must carry prominent notices stating that it is released under this License and any conditions added under section 7. This requirement modifies the requirement in section 4 to "keep intact all notices". c) You must license the entire work, as a whole, under this License to anyone who comes into possession of a copy. This License will therefore apply, along with any applicable section 7 additional terms, to the whole of the work, and all its parts, regardless of how they are packaged. This License gives no permission to license the work in any other way, but it does not invalidate such permission if you have separately received it. d) If the work has interactive user interfaces, each must display Appropriate Legal Notices; however, if the Program has interactive interfaces that do not display Appropriate Legal Notices, your work need not make them do so. A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an "aggregate" if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate. 6. Conveying Non-Source Forms. You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways: a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange. b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge. c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b. d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements. e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d. A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work. A "User Product" is either (1) a "consumer product", which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, "normally used" refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product. "Installation Information" for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made. If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM). The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network. Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying. 7. Additional Terms. "Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions. When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms: a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or d) Limiting the use for publicity purposes of names of licensors or authors of the material; or e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors. All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying. If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms. Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way. 8. Termination. You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11). However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10. 9. Acceptance Not Required for Having Copies. You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so. 10. Automatic Licensing of Downstream Recipients. Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License. An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it. 11. Patents. A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's "contributor version". A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version. In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid. If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it. A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . Open Source Software Licensed under the GNU General Public License version 2: -------------------------------------------------------------------- 1. bento4 Copyright (C) Axiomatic Systems LLC Source code of this software can be obtained from: http://zebulon.bok.net/Bento4/source/Bento4-SRC-1-5-1-628.zip Terms of the GNU General Public License version 2: -------------------------------------------------------------------- GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the Program. In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this License. 3. You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. (This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer, in accord with Subsection b above.) The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need not include anything that is normally distributed (in either source or binary form) with the major components (compiler, kernel, and so on) of the operating system on which the executable runs, unless that component itself accompanies the executable. If distribution of executable or object code is made by offering access to copy from a designated place, then offering equivalent access to copy the source code from the same place counts as distribution of the source code, even though third parties are not compelled to copy the source along with the object code. 4. You may not copy, modify, sublicense, or distribute the Program except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense or distribute the Program is void, and will automatically terminate your rights under this License. However, parties who have received copies, or rights, from you under this License will not have their licenses terminated so long as such parties remain in full compliance. 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Program (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it. 6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licensor to copy, distribute or modify the Program subject to these terms and conditions. You may not impose any further restrictions on the recipients' exercise of the rights granted herein. You are not responsible for enforcing compliance by third parties to this License. 7. If, as a consequence of a court judgment or allegation of patent infringement or for any other reason (not limited to patent issues), conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not distribute the Program at all. For example, if a patent license would not permit royalty-free redistribution of the Program by all those who receive copies directly or indirectly through you, then the only way you could satisfy both it and this License would be to refrain entirely from distribution of the Program. If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances. It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice. This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License. 8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. one line to give the program's name and an idea of what it does. Copyright (C) yyyy name of author This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. signature of Ty Coon, 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License.

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