如何在ffmpeg中包含swscale.h? [英] How do I include swscale.h in ffmpeg?

问题描述

我正在尝试从源代码编译ffmpeg，但是当我尝试编译依赖于它的程序时(从一个教程)中，我收到了错误消息:

I'm trying to compile ffmpeg from source, but when I try to compile a program dependent on it (from a tutorial), I get the error:

fatal error: ffmpeg/swscale.h: No such file or directory

我已经克隆了 github存储库，并遵循了

I have cloned the github repository and followed the install instructions, but still get the same error.

我也尝试过 make install-libs 和 make config.h ，但是我有点儿不在意，因为我并不是一个真正的C程序员.

I have also tried make install-libs and make config.h, but I'm kind of out of my depth here, because I'm not really a C programmer.

推荐答案

如果正确安装了ffmpeg(使用sudo make install)和makefile，则可以使用 #include< libswscale/swscale.h> 这些内容如下:

you can use #include <libswscale/swscale.h> if ffmpeg installed correctly (with sudo make install) and your makefile has these below:

注意:我也正在使用/使用ffmpeg API，这已经过测试.哦，对于c ++项目，您可能需要在包含之前使用 extern"C" .

Note: I'm using/used ffmpeg API's too, this is tested. Oh and for c++ projects you may want to use extern "C" before include.

Makefile(对于c ++):

Makefile (for c++):

LIBAV_PATH = /set_correct_pathto/ffmpeg/lib/pkgconfig/
PKG_DEPS = libavcodec libavformat libswscale libswresample libavutil
CXXFLAGS += `PKG_CONFIG_PATH=$(LIBAV_PATH) pkg-config --cflags $(PKG_DEPS)`
LDFLAGS  += `PKG_CONFIG_PATH=$(LIBAV_PATH) pkg-config --libs $(PKG_DEPS)`

对于C，将 CXXFLAGS 更改为 CFLAGS .
希望有帮助.

For C, change CXXFLAGS to CFLAGS.
Hope that helps.

这篇关于如何在ffmpeg中包含swscale.h?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！