1.å¦ä½å°vlcåµå
¥å°androidä¸
2.Python 流媒体播放器(基于VLC)
3.vlc是码解什么
å¦ä½å°vlcåµå ¥å°androidä¸
ããåvlc-android移æ¤çéåé½åºè¯¥ç¥éï¼å½ç¼è¯å®vlc-android æºç åEventManager.java
ç±»ä¸å®ä¹äºè®¸å¤äºä»¶ï¼ä¸é¢æ¯æºç ä¸é¨åï¼
ããpublic class EventManager {
ãã
ãã/
*ãã* Be sure to subscribe to events you need in the JNI too.
ãã*/
ãã
ãã//public static final int MediaMetaChanged = 0;
ãã//public static final int MediaSubItemAdded = 1;
ãã//public static final int MediaDurationChanged = 2;
ãã//public static final int MediaParsedChanged = 3;
ãã//public static final int MediaFreed = 4;
ãã//public static final int MediaStateChanged = 5;
ãã
ãã//public static final int MediaPlayerMediaChanged = 0x;
ãã//public static final int MediaPlayerNothingSpecial = 0x;
ãã//public static final int MediaPlayerOpening = 0x;
ãã//public static final int MediaPlayerBuffering = 0x;
ããpublic static final int MediaPlayerPlaying = 0x;
ããpublic static final int MediaPlayerPaused = 0x;
ããpublic static final int MediaPlayerStopped = 0x;
ãã
ãã......
ãã}
ããå¯æ¯å¯¹äºè¿äºäºä»¶æå¾å¤é½è¢«æ³¨éæäºï¼å½æ们éè¦è¢«æ³¨éæçäºä»¶æ¶ï¼å°±ç®æ注éæ¿æï¼åè°ç¨mEventManager.addHandler(EventManager.getInstance())æ·»å äºä»¶ä¹åï¼ä¹ä¸ä¼å¨å®ä¹çmEventHandler
çhandleMessage()ä¸çå¬å°ï¼ä¸é¢ä¸ºä¸ä¸ªmEventHandlerå®ä¹çdemo:
ãã[java] view plaincopy
ããprivate final VideoEventHandler mEventHandler = new VideoEventHandler(this);
ããprivate class VideoEventHandler extends WeakHandler<DtvPlayer>{
ããpublic VideoEventHandler(DtvPlayer owner) {
ããsuper(owner);
ãã}
ãã@Override
ããpublic void handleMessage(Message msg) {
ããDtvPlayer activity = getOwner();
ããif(activity == null) return;
ããswitch (msg.getData().getInt("event")) {
ããcase EventManager.MediaPlayerBuffering:
ããLog.d(TAG, "MediaPlayerBuffering");
ããbreak;
ããcase EventManager.MediaPlayerEncounteredError:
ããLog.d(TAG, "MediaPlayerEncounteredError");
ããbreak;
ãã......
ããdefault:
ããLog.e(TAG, String.format("Event not handled (0x%x)", msg.getData().getInt("event")));
ããbreak;
ãã}
ããsuper.handleMessage(msg);
ãã}
ãã}
ããé£ä¹å¦ä½æè½å¤å¨mEventHandlerä¸çå¬å°æ们éè¦çäºä»¶å¢ï¼ä¸é¢å°è¿å ¥ä¸»é¢ã
ããå¨libvlcjni.cä¸æä¸ä¸ªéæ常éï¼å ¶ä¸æå®äºæ们ç®åéè¦è·ååªäºäºä»¶ï¼
ãã[html] view plaincopy
ããstatic const libvlc_event_type_t mp_events[] = {
ããlibvlc_MediaPlayerPlaying,
ããlibvlc_MediaPlayerPaused,
ããlibvlc_MediaPlayerEndReached,
ããlibvlc_MediaPlayerStopped,
ããlibvlc_MediaPlayerVout,
ããlibvlc_MediaPlayerPositionChanged
ãã};
ããä½ å¯ä»¥å°èªå·±éè¦çäºä»¶æ·»å å¨éé¢ï¼ç¶åå°EventManagerä¸ååºçäºä»¶æ³¨éæ¿æï¼ä¹åéæ°ç¼è¯æºç å°±å¯ä»¥åmEventHandlerä¸è·åä½ åæ·»å çäºä»¶äºã
ããï¼ä¾å¦ï¼ä½ è¦æ³è·åMediaPlayerEncounteredErroräºä»¶ï¼å å°libvlc_MediaPlayerEncounteredErroræ·»å å¨mp_events[]éæ常éä¸ï¼æ³¨æï¼è¿éåé¢å¤äºlibvlc_ï¼ï¼ç¶åæEventManagerä¸çpublic
static final int MediaPlayerEncounteredError =
0xa;注éæ¿æï¼éæ°ç¼è¯æºç ä¹åå°±å¯ä»¥å¨ä½ å¾mEventHandler
çhandleMessage()ä¸è·åå°EventManger.MediaPlayerEncounteredErroräºä»¶ï¼ã
ããå¨vlc-android/vlc/lib/event.cä¸å®ä¹äºææäºä»¶ï¼
ãã[cpp] view plaincopy
ãã#define DEF( a ) { libvlc_##a, #a, },
ãã
ããtypedef struct
ãã{
ããint type;
ããconst char name[];
ãã} event_name_t;
ãã
ããstatic const event_name_t event_list[] = {
ããDEF(MediaMetaChanged)
ããDEF(MediaSubItemAdded)
ããDEF(MediaDurationChanged)
ããDEF(MediaParsedChanged)
ããDEF(MediaFreed)
ããDEF(MediaStateChanged)
ãã
ããDEF(MediaPlayerMediaChanged)
ããDEF(MediaPlayerNothingSpecial)
ããDEF(MediaPlayerOpening)
ããDEF(MediaPlayerBuffering)
ããDEF(MediaPlayerPlaying)
ããDEF(MediaPlayerPaused)
ããDEF(MediaPlayerStopped)
ããDEF(MediaPlayerForward)
ããDEF(MediaPlayerBackward)
ããDEF(MediaPlayerEndReached)
ããDEF(MediaPlayerEncounteredError)
ããDEF(MediaPlayerTimeChanged)
ããDEF(MediaPlayerPositionChanged)
ããDEF(MediaPlayerSeekableChanged)
ããDEF(MediaPlayerPausableChanged)
ããDEF(MediaPlayerTitleChanged)
ããDEF(MediaPlayerSnapshotTaken)
ããDEF(MediaPlayerLengthChanged)
ããDEF(MediaPlayerVout)
ãã
ããDEF(MediaListItemAdded)
ããDEF(MediaListWillAddItem)
ããDEF(MediaListItemDeleted)
ããDEF(MediaListWillDeleteItem)
ãã
ããDEF(MediaListViewItemAdded)
ããDEF(MediaListViewWillAddItem)
ããDEF(MediaListViewItemDeleted)
ããDEF(MediaListViewWillDeleteItem)
ãã
ããDEF(MediaListPlayerPlayed)
ããDEF(MediaListPlayerNextItemSet)
ããDEF(MediaListPlayerStopped)
ãã
ããDEF(MediaDiscovererStarted)
ããDEF(MediaDiscovererEnded)
ãã
ããDEF(VlmMediaAdded)
ããDEF(VlmMediaRemoved)
ããDEF(VlmMediaChanged)
ããDEF(VlmMediaInstanceStarted)
ããDEF(VlmMediaInstanceStopped)
ããDEF(VlmMediaInstanceStatusInit)
ããDEF(VlmMediaInstanceStatusOpening)
ããDEF(VlmMediaInstanceStatusPlaying)
ããDEF(VlmMediaInstanceStatusPause)
ããDEF(VlmMediaInstanceStatusEnd)
ããDEF(VlmMediaInstanceStatusError)
ãã};
ãã#undef DEF
ããå ¶ä¸DEF()å°MediaPlayerEncounteredErrorå®ä¹ä¸ºlibvlc_MediaPlayerEncounteredError,å½æ¬å°ä»£ç 产çMediaPlayerEncounteredErroräºä»¶æ¶ä¼å°libvlc_MediaPlayerEncounteredErrorä¼ éç»jniï¼ä¸æ¤åæ¶jniåä¼ä¼ éç»javaå±ãä¸ç®¡æ¯æ¬å°libvlc_MediaPlayerEncounteredErrorè¿æ¯javaå±MediaPlayerEncounteredErrorï¼å¯¹äºåä¸ä¸ªäºä»¶è¢«å®ä¹çå¼é½æ¯ç¸åçï¼ä¼ è¾çæ¯åä¸ä¸ªæ¶æ¯å¼ãæ¬å°ä»£ç å®ä¹å¨vlc-android/vlc/include/libvlc_events.h,
java代ç å®ä¹å¨EventManager.javaä¸ã
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Python 流媒体播放器(基于VLC)
VLC,一款全面的码解开源多媒体播放器及框架,支持绝大部分多媒体格式和流媒体协议。码解其Python绑定提供了简单调用VLC动态库的码解接口,适合开发功能丰富、码解使用简单的码解cef源码修改播放器。为了使用VLC,码解首先需在Windows系统安装对应版本的码解VLC和python-vlc绑定。下载VLC绿色免安装版,码解解压并剪裁所需文件。码解通过Python封装 VLC.py 模块,码解实现VLC动态库集成。码解创建播放示例,码解包含基本播放、码解监听时间变化、码解fart源码分析视频加字幕、音频可视化及跨平台功能。通过命令行或Tkinter界面实现播放器功能,支持本地音频文件和在线流媒体播放。VLC Python绑定提供丰富选项参数设置,灵活满足不同需求。跨平台开发时,sp源码修改可在线安装VLC或集成VLC源码编译。通过项目实例,学习VLC Python绑定及Tkinter界面编程。关注博主的公众号了解完整播放器实现细节和界面编程技巧。
vlc是什么
VLC是一款免费开源的跨平台多媒体框架和播放器。以下是关于VLC的详细解释:
VLC媒体播放器:
VLC是一款功能强大的媒体播放器。它可以播放大多数格式的和平雪花源码音频和视频文件。无论是音频还是视频,只要是常见的格式,VLC都可以轻松应对。这使得它在各种操作系统中都受到用户的欢迎。由于其开源的特性,用户还可以根据需要自定义VLC的功能。
跨平台支持:
VLC支持多种操作系统,pinv函数源码包括但不限于Windows、Linux、Mac OS等。这意味着无论用户使用的是哪种操作系统,都可以享受到VLC带来的便利。这也是VLC能够赢得大量用户喜爱的原因之一。
开源特性:
VLC是一个开源项目,这意味着它的源代码是公开的,任何人都可以查看和修改。这一特点使得VLC得以持续发展和完善,不断有新的功能和优化加入。同时,开发者社区也可以基于VLC创建更多的应用和服务。
扩展性强:
由于VLC是一个多媒体框架,它提供了丰富的API和插件接口,用户可以根据自己的需求扩展其功能。例如,用户可以添加字幕、滤镜效果等,以满足个性化的播放需求。此外,由于开源社区的支持,第三方开发者已经为VLC开发了大量的插件和扩展,使其功能更加丰富。
总结:VLC是一款免费开源的跨平台多媒体播放器,支持多种格式的音频和视频播放。由于其强大的功能和广泛的平台支持,VLC在全球范围内拥有大量的用户。其开源特性使得它得以持续发展和完善,为用户提供更好的体验。