How to set slice mode of encoder in newest RDK?

Hi All:

     In newest RDK, I have set

hObj->staticParams.sliceCodingParams.sliceCodingPreset = 1
hObj->staticParams.sliceCodingParams.sliceMode = 1
hObj->staticParams.sliceCodingParams.sliceUnitSize = 480
hObj->staticParams.videnc2Params.encodingPreset = 3

before

hObj->algHandle =
        enc_link_h264_create((IH264ENC_Fxns *) & H264ENC_TI_IH264ENC,
                             &hObj->staticParams);

But the bitstream still does not have multi slices.

Could anyone give some advices?

Thanks,

James

Hi James,

According to your setting shared, you are trying to set Multiple slices based on Max Number of MB per slice.

Just ensure Max number of MB per slice is less than the maximum MBs in the frame.

Eg: Say you are encoding QCIF (which has 99 MB per frame) and setting sliceUnitSize as 480, does not result in multiple slices in the bitstrean.

Also just ensure you are not owerwriting the create time setting with Dynamic Settings given to control() call.

Regards,

Venu

Dear Venu:

Thank you for your reply.  But I encode in 1080P format. (1920x1088).  So there should be 17 slices in a frame.

And I do not do dynamic settings.  So do you have any other advices?

Thanks,

James

Hi James,

Can you give the entire log of

hObj->staticParams.

Just ensure dynamic settng is done anywhaere else?

regards,

Venu

Hi Venu,

The multi-slice setting seems in enclink_h264_set_static_params.

I set the slice-mode relative parameters in this function.  It seems unrelative to dynamic setting.

And I do not know how to get the entire log of

hObj->staticParams.

Could you tell me how?

Thanks,

James

Hi James,

When I say log, print the values of all the members of the structure by putting printf.

Multi-slice setting also exist in Dynamic params.

typedef struct EncLink_H264Obj {
    IH264ENC_Handle algHandle;
    Int8 versionInfo[ENC_LINK_H264_VERSION_STRING_MAX_LEN];
    Int linkID;
    Int channelID;
    Int scratchID;
    UInt32 ivaChID;
    IH264ENC_DynamicParams dynamicParams;
    IH264ENC_Status status;
    IH264ENC_Params staticParams;
    IH264ENC_InArgs inArgs;
    IH264ENC_OutArgs outArgs;
    IVIDEO2_BufDesc inBufs;
    XDM2_BufDesc outBufs;
    IVIDEO_Format format;
    UInt32 memUsed[UTILS_MEM_MAXHEAPS];
} EncLink_H264Obj;

Check the highlighted structure contents.

Regards,

Venu

Dear Venu,

Thank you for your support.  The problem has been resolved.

Regards,

James