VPU decode. Function vpu_DecOpen .

laijp — Sun, 31 Jul 2016 06:55:24 GMT

Hello everyone.

I was a beginner. I have some question need to help.Thank you in advance for your help.

I used the vpu library to decode a jpeg image.

Here is my vpu Fw and lib version.

[INFO]

Product Info: i.MX6Q/D/S

VPU firmware version: 3.1.1_r46063

VPU library version: 5.4.28

My code result.

VPU Init Success.

[INFO] Product Info: i.MX6Q/D/S

VPU firmware version: 3.1.1_r46063

VPU library version: 5.4.28

Success to obtain physical mem

Success to obtain virtual mem

vpu_DecOpen failed, ret:-3

I know the vpu_DecOpen function which return -3 is represents DecOpenParam's parameter is wrong.

but I don't know what parameters that I need to use.

I just want to decode jpeg. Please help me to resolve this probram.

Thank you.

Here is my code.

int main()

{

unsigned char *buf;

unsigned long int fileLength, bufLength;

FILE *pfile;

pfile = fopen("red.jpeg","rb");

if(fseek(pfile, 0, SEEK_END)) { //移到最後算長度

return -1;//File seek error.}

fileLength = ftell(pfile); //長度

rewind(pfile); //移到最前面

buf = (unsigned char*)malloc(sizeof(unsigned char)*fileLength);

if (pfile == NULL){

printf("Fail");system("pause");return 0;}

fread ( buf, 1, fileLength, pfile); //讀檔到buf

printf("%ld\n%p\n%ld\n",fileLength, buf, bufLength);

fclose(pfile);

//------vpu-------//

int err;

if (vpu_Init(NULL)) {

printf("VPU Init Failure.\n");

return 0;}

else printf("VPU Init Success.\n");

struct decode *dec;

dec = (struct decode *)calloc(1, sizeof(struct decode)); //reserve

vpu_versioninfo ver = {0};

vpu_mem_desc mem_desc = {0};

mem_desc.size = 0x35975;

err = vpu_GetVersionInfo(&ver);

if (err) {

printf("Cannot get version info, err:%d\n", err);

vpu_UnInit();

return 0;

}

printf("VPU firmware version: %d.%d.%d_r%d\n", ver.fw_major, ver.fw_minor,

ver.fw_release, ver.fw_code);

printf("VPU library version: %d.%d.%d\n", ver.lib_major, ver.lib_minor,

ver.lib_release);

if(IOGetPhyMem(&mem_desc)) { //input buff size,then buff

printf("Unable to obtain physical mem\n"); //then buff phy_addr is output

return 0;} //after return success.

else printf("Success to obtain physical mem\n");

if (IOGetVirtMem(&mem_desc) <= 0) {

printf("Unable to obtain virtual mem\n");

IOFreePhyMem(&mem_desc);

//free(dec);

return 0;}

else printf("Success to obtain virtual mem\n"); //Susses to obtain address

dec->phy_bsbuf_addr = mem_desc.phy_addr;

dec->virt_bsbuf_addr = mem_desc.virt_uaddr;

RetCode ret;

DecHandle handle;

DecOpenParam oparam;

oparam.bitstreamFormat = 7;

oparam.bitstreamBuffer = dec->phy_bsbuf_addr;

oparam.bitstreamBufferSize = 0x35975;

//oparam.pBitStream = dec->virt_bsbuf_addr;

oparam.reorderEnable = 0; // force to zero

oparam.mp4DeblkEnable = 0;

oparam.chromaInterleave = 0; //unknow

//oparam.mjpg_thumbNailDecEnable = 0;

//oparam.avcExtension = 0;

//oparam.mapType = 0;

//oparam.tiled2LinearEnable = 0;

//oparam.bitstreamMode = 0;

ret = vpu_DecOpen(&handle,&oparam);

if (ret != RETCODE_SUCCESS) {

printf("vpu_DecOpen failed, ret:%d\n", ret);

return 0;

}

else printf("vpu_DecOpen Success \n");

//-------------//

return 0;

}

Re: VPU decode. Function vpu_DecOpen .

joanxie — Fri, 12 Aug 2016 07:40:08 GMT

could you tell me what bsp version and what command do you use?

vpu lib can decode jpeg.

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VPU decode. Function vpu_DecOpen .

Re: VPU decode. Function vpu_DecOpen .