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Previous: " FFmpeg Development Notes (10): Cross-compilation of ffmpeg on ubuntu and porting to HiSilicon HI35xx platform "
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foreword

The previous article cross-compiled the HiSilicon version of ffmpeg, and used the cross-compiled qt ffmpeg player to play on HiSilicon. This film adds the ffmpeg environment to the HiSilicon sample environment.

Introduce the ffmpeg library in the HiSilicon sample

Step 1: View the previously cross-compiled installation files

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Step 2: Open the compiled parameter file, add header files and library files

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##### add by yangjiong 2022-03-12 start
INC_FLAGS += -I/home/yang/work/ffmpeg-hi3559av100/include
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libavcodec.a
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libavdevice.a
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libavfilter.a
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libavformat.a
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libavutil.a
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libswresample.a
MPI_LIBS += /home/yang/work/ffmpeg-hi3559av100/lib/libswscale.a
##### add by yangjiong 2022-03-12 stop

As shown below:
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Step 3: Add ffmpeg test in another sample in venc

(Note that in the sample subdirectory of HiSilicon, the folder can only have one main function, which means that all header files and source files in the subfolder will be jointly compiled as an application.)
Change the original .c About the suffix .bak, and then re-create a c file.
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Step 4: Run the target application on the board

(Note: You need to add the library to the running environment first. The easiest way is to copy the previous library directly, put the lib in the /lib file directory of the HiSilicon system, or you can customize the path, and use the script to add it first at runtime. Path and then run the application, there are many ways, all roads lead to Rome).
The results of running on HI3559AV100 are as follows:
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Demo source code

#ifdef __cplusplus
#if __cplusplus


extern "C" {
    
    
#endif
#endif /* End of #ifdef __cplusplus */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <pthread.h>
#include <signal.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <netinet/in.h>
#include<arpa/inet.h>
#include <sys/types.h>

#include "sample_comm.h"

// ffmepg
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <libavdevice/avdevice.h>
#include <libavformat/version.h>
#include <libavutil/time.h>
#include <libavutil/mathematics.h>

#define LOG printf("%s:%d\n", __FILE__, __LINE__);


int main(int argc, char *argv[])
{
    
    
	printf("%s\n", avcodec_configuration());
	return 0;
}

#ifdef __cplusplus
#if __cplusplus
}
#endif
#endif /* End of #ifdef __cplusplus */