How to use JPEG encode on Dm365evm?

Leon Yin

Intellectual 255 points

Greetings:

As the dvsdk document mentioned, the .264 and .mpeg4 extension could be used to encode video to corresponding codecs.

When I use .jpeg extension, the programme told me that it was an unknown extension.

So how can I use jpeg codec by using the dvsdk demo?

Thanks!

Btw: Is UYVY colorspace encoding supported in the dvsdk?

In addition: I have added some codes to the encode.cfg and codecs.c, but that doesn't work.

var JPEGENC = xdc.useModule('ti.sdo.codecs.jpegenc.ce.JPEGENC');

var myEngine = Engine.create("encode", [

{name: "mpeg4enc", mod: MPEG4ENC, local: true, groupId: 1},
{name: "h264enc", mod: H264ENC, local: true, groupId: 1},

{name: "jpegenc", mod: JPEGENC, local: true, groupId: 1},
{name: "g711enc", mod: G711ENC, local: true},
]);

After adding the CE_DEBUG=1 before the invoke ./encode command, the message on the console window is as below:

@2,642,432us: [+6 T:0x42e22490] CE - Engine_getConstName> Unable to locate alg "
jpegenc" (type "ti.sdo.ce.video1.IVIDENC1").
@2,642,666us: [+6 T:0x42e22490] CV - VISA_create2> Unable to locate alg "jpegenc
".
@2,642,821us: [+7 T:0x42e22490] ti.sdo.dmai - [Venc1] Failed to open video encod
e algorithm: jpegenc (0x0)
Error: Failed to create video encoder: jpegenc

Best Regards;

over 15 years ago

0 Anshuman Saxena over 15 years ago

TI__Mastermind 19985 points

Hi Leon,

DVSDK by default does not support JPEG ENC. You can refer to DVTB code that is provided in DVSDK package. It supports JPEG ENC.

The problem i see from the information on console is that you are using IVIDENC1 class for creating JPEG ENC. You should instead use IMGENC1 class interface to call JPEG ENC. A code snipped is given below:

IMGENC1_Params          params;
    XDAS_Int32              status;
    char                    algName[20];
    IMGENC1_Handle          hEncode;
    IJPEGENC_DynamicParams extDynParams;

algName = "jpegenc";

/* allocate and initialize image encoder on the engine */
    params.size = sizeof(IMGENC1_Params);
    params.maxWidth = 736;
    params.maxHeight = 480;
    params.maxScans = 1;
    params.dataEndianness = XDM_BYTE;
    params.forceChromaFormat = 1;
    hEncode = IMGENC1_create(hEngine, algName, &params);
    if (hEncode == NULL) {
        ERR("Failed to open jpeg encode algorithm: %s (0x%x)\n",
            algName, Engine_getLastError(hEngine));
        return FAILURE;
    }

Regards,

Anshuman

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How to use JPEG encode on Dm365evm?