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libvlc中的视频效果

[英]Video effects in libvlc

原文 2015-08-18 04:44:46 4 1 c++/ vlc/ libvlc/ video-effects

In vlc there are some video effects which I cannot find them in libvlc, when I open a video in vlc I can go to "Tools->Effect and Filters ->Video Effects" and then there are many video effects which I can use , such as negating the color or denoisers or posterizing,etc. 在vlc中，有些视频效果无法在libvlc中找到，当我在vlc中打开视频时，可以转到“工具->效果和滤镜->视频效果”，然后可以使用很多视频效果，如否定颜色或降噪器或后代化等。

I can set some of them by "libvlc video_set_adjust_float", it can set contrast, brightness and some other options. 我可以通过“ libvlc video_set_adjust_float”设置其中的一些，它可以设置对比度，亮度和其他一些选项。

Is there any way to use these options in libvlc? 有没有办法在libvlc中使用这些选项？ (I want to use some of these effects in my program written by libvlc). （我想在我的libvlc编写的程序中使用其中一些效果）。

1 个解决方案

There is no API in LibVLC to use any of the other filters. LibVLC中没有API可以使用任何其他过滤器。

You can, but it is totally not supported, use the same command-line switches for those filters and pass them to LibVLC in one of two ways, either: when you create your LibVLC instance via libvlc_new , or; 您可以但不完全支持这些过滤器使用相同的命令行开关，并通过以下两种方式之一将它们传递给LibVLC：通过libvlc_new创建LibVLC实例时；或者； when you create a media instance you can add some of those switches as options by using libvlc_media_add_option . 创建媒体实例时，可以使用libvlc_media_add_option将其中一些开关添加为选项。

This approach has many drawbacks however. 然而，这种方法具有许多缺点。 Apart from it not being supported, for some things you can only set the options this way once and never change them. 除了不支持它之外，对于某些事情，您只能以这种方式设置一次选项，并且永远不要更改它们。