Ubuntu 16.04.3下FFmpeg编译与开发环境搭建测试程序

测试环境 ffmpeg 安装成功与否的例子：

1. #include <stdio.h>
2. #include <libavformat/avformat.h>
3. #include <libswscale/swscale.h>
4. #include <libavfilter/avfilter.h>
6. #define dbmsgc(fmt, args ...) printf("cong:%s[%d]: "fmt"\n", __FUNCTION__, __LINE__,##args)
7. //#define dbmsg(fmt, args ...) printf("cong:%s:%s[%d]: "fmt"\n",__FILE__, __FUNCTION__, __LINE__,##args)
8. int main( int argc, char **argv)
9. {
10. int i= 0;
11. AVFormatContext *pFormatCtx = NULL;
12. avcodec_register_all();
13. #if CONFIG_AVDEVICE
14. avdevice_register_all();
15. #endif
16. avfilter_register_all();
17. av_register_all();
19. if(avformat_open_input(&pFormatCtx, argv[ 1], NULL, NULL)!= 0)
20. return - 1; // Couldn't open file
22. if(avformat_find_stream_info(pFormatCtx, NULL)< 0)
23. return - 1; // Couldn't find stream inform
24. av_dump_format(pFormatCtx, 0, 0, 0);
26. return 0;
27. }

6..编写Makefile

1. FFMPEG =/usr/ local/ffmpeg
2. CC =gcc
3. CFLAGS =-g -I$(FFMPEG)/include
4. LDFLAGS = -L$(FFMPEG)/lib / -lswscale -lswresample -lavformat -lavdevice -lavcodec -lavutil -lavfilter -lm
5. TARGETS = test
6. all: $(TARGETS)
7. test:test .c
8. $(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS) -std=c++11 #注意这里的-std=c++11
10. clean:
11. rm -rf $(TARGETS)

7.make

8../test