windows 下VLC播放器应用之四------LibVLC 1.1 changes highlights

引子

这是LIBVLC API解析系列的第四篇，主要介绍比较稳定的libvlc1.1版本较之前的变化。虽然现在用1.1.4,但还是有一定的比较意义，如若转载请保证文章完整性及保留博客地址。

 

最近做了个简易播放器，想做的完善点，考虑到了异常处理，以及日志输出。去官网发现有这样一篇文章，摘下来做一下参考。

 

官网原文

VLC 1.1.0 is now being stabilized, and will hopefully soon hit the release download directory. It seems like a good time to highlights the main changes to the LibVLC API.

• LibVLC binary version now has number 5. This is a binary break from the three previous interfaces (LibVLC 0.9 and 1.0 had number 2).
• Exceptions are not used anymore anywhere.
• Functions with a pointer return type return NULL in case of error.
• Functions that cannot fail return simply void. There is no need to check for exception just to be sure anymore.
• Other functions return an error code if applicable, typically -1, sometimes zero. Refer to the Doxygen documentation for details.
• libvlc_errmsg() provides an English human-readable error message for the last LibVLC error in the calling thread.
• Multiple instances created with libvlc_new() can have different configuration. This was a known bug/limitation in earlier version (the configuration parameter for the first instance were used by all instances).
• Previously obsoleted functions are removed completely.
• libvlc_get_instance() is removed.
• libvlc_video_get_size() is added, returns both dimensions of an active video output.
• libvlc_video_get_height() and libvlc_video_get_width() are obsoleted (but still present).
• New video functions are added to control Marquee and Logo filters.
• libvlc_video_set_key_input() and libvlc_video_set_mouse_input() can disable key presses and mouse events on the LibVLC video widgets (X11 port). Then the application can handle them.
• X11 C Bindings (libxcb) is used internally instead of Xlib, resolving a lot of race conditions and crashes.
• Many "setter" functions that previously only worked when audio or video was active can now be used off-line, e.g. fullscreen mode, audio volume, etc. In that case, there is no need to wait for events from the LibVLC media player anymore. Obviously, this only applies to some settings (e.g. audio channels cannot be listed when nothing is being played back).

• A number of bugs, especially dead locks and race conditions were fixed.

补充

vlc1.1较以前版本有如上变化，重点关注一下黑体部分，这一条:Exceptions are not used anymore anywhere，对于1.1版本以后的应用者，异常这块要靠自己了