海思Hi3559a音视频同时播放的例子

原文链接：

在mpp/sample下新建av目录

（1）编写Makefile，如下：

Hisilicon Hi35xx sample Makefile

include …/Makefile.param

SRCS := $(wildcard *.c)

TARGET := $(SRCS:%.c=%)

SRCS += $(wildcard $(PWD)/adp/* .c)

#compile linux or HuaweiLite

include

( P W D ) / . . / (PWD)/../

(

P

W

D

)

/

.

.

/ (OSTYPE).mak

print:

@echo “os is $(OSTYPE)”

（2）把mpp/sample/audio的adp目录拷贝到新建的av目录下

（3）编写sample_av.c文件，音视频同时播放的流程如下：

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <sys/ioctl.h>

#include <sys/poll.h>

#include <sys/time.h>

#include <fcntl.h>

#include <errno.h>

#include <pthread.h>

#include <math.h>

#include <unistd.h>

#include <signal.h>

#include <sys/prctl.h>

#include “sample_comm.h”

#include “acodec.h”

#include “audio_aac_adp.h”

HI_S32 main(int argc, char* argv[])

{

HI_S32 s32Ret = HI_SUCCESS;

signal(SIGINT, SAMPLE_AUDIO_HandleSig);

signal(SIGTERM, SAMPLE_AUDIO_HandleSig);

s32Ret = SAMPLE_H265_VDEC_VPSS_VO();

return s32Ret;

}

（4）在sample_av.c中，把sample_audio.c的下列函数拷贝过来

SAMPLE_DBG

SAMPLE_AUDIO_HandleSig

SAMPLE_AUDIO_Pt2Str

SAMPLE_AUDIO_OpenAdecFile

SAMPLE_AUDIO_AdecAo

（5）将音频播放流程整合为一个函数：

HI_S32 SAMPLE_AUDIO_AdecAO_SetRun(HI_VOID)//dong add audio set and run.

{

HI_S32 s32Ret = HI_SUCCESS;

HI_MPI_AENC_AacInit();

HI_MPI_ADEC_AacInit();

/* Set audio clksel, Non-required code. */

AUDIO_MOD_PARAM_S stModParam;

stModParam.enClkSel = AUDIO_CLKSEL_BASE;

HI_MPI_AUDIO_SetModParam(&stModParam);

SAMPLE_AUDIO_AdecAo();

return s32Ret;

}

(6)在sample_av.c中，把sample_vdec.c的下列函数拷贝过来

SAMPLE_STREAM_PATH

g_enIntfSync

SAMPLE_H265_VDEC_VPSS_VO

(7)将音频播放整合到视频播放函数中

//SAMPLE_COMM_VDEC_CmdCtrl(u32VdecChnNum, &stVdecSend[0], &VdecThread[0]);

SAMPLE_AUDIO_AdecAO_SetRun();

//

将之前的SAMPLE_COMM_VDEC_CmdCtrl函数注释掉，添加第5步编写的音频播放函数。

（8）如果显示器的分辨率较低，在SAMPLE_H265_VDEC_VPSS_VO函数中可以修改为720P输出

g_enIntfSync = VO_OUTPUT_720P60;

if(VO_OUTPUT_3840x2160_30 == g_enIntfSync)

{

enDispPicSize = PIC_3840x2160;

enIntfSync = VO_OUTPUT_3840x2160_30;

}

else

{

// enDispPicSize = PIC_1080P;

// enIntfSync = VO_OUTPUT_1080P30;

enDispPicSize = PIC_720P;

enIntfSync = VO_OUTPUT_720P50;

}