VLIB library function input attribute modification request

Joey Lin

Intellectual 670 points

Hi,

Currently we have the need to withdraw Luma (Y domain) from a YUV422 color format for

image processing. The VLIB2.2 has the API VLIB_extractLumaFromUYUV () comes in handy.

However, the input color format for our platform is limited to YUYV instead of UYUV.

Would it be possible that TI provides the API VLIB_extractLumaFromYUYV ();

My platform info: TMS320DM8148 (Vision-Mid)

600-MHz ARM® Cortex™-A8 RISC MPU

500-MHz C674x™ VLIW DSP

200-MHz M3-ISS/M3-HDVPSS

Thanks in advance,

Joey Lin

over 11 years ago

0 Sudhakar Ayyasamy over 11 years ago

TI__Intellectual 1010 points

Joey,

I am currently working on this, and will send you an update once we build and test the new functionality. Thank you.

Sincerely,

Sudhakar Ayyasamy

0 Joey Lin over 11 years ago in reply to Sudhakar Ayyasamy

Intellectual 670 points

Hi, Sudhakar

Currently we use natural C code to work around the issue. We would like to replace it with the intrinsic code that you are modifying for us. We look forward to your work result on this matter, and thank you for your effort.

Regards,

Joey

0 Joey Lin over 11 years ago in reply to Sudhakar Ayyasamy

Intellectual 670 points

Hi, Sudhakar:

Currently, we need to process the Y luma data after extracting, then write the processed result back to YUYV image source

. The question is that may TI provide VLIB/ImgLIB API to write back extracted Y back to its YUYV image source?

Thank you in advance,

Joey

0 Sudhakar Ayyasamy over 11 years ago in reply to Joey Lin

TI__Intellectual 1010 points

Joey,

We are currently working on adding a kernel for extracting Y data from YUYV function. We will start working on something like VLIB_insertYintoYUYV() once we finish the current task. Thanks.

Sincerely,

Sudhakar Ayyasamy

0 Sudhakar Ayyasamy over 11 years ago in reply to Sudhakar Ayyasamy

TI__Intellectual 1010 points

Joey,

I am attaching the patch for the following two functions:

1. VLIB_extractLumaFromYUYV

2. VLIB_insertLumaIntoYUYV

To use the patch with existing release:

1. Unzip the patch in different location.

2. Link the library: ti\vlib\lib\vlib.lib folder.

3. Link the header file ti\vlib\vlib.h

Please let us know your feedback after using the new functionalities, so that we will include them in future releases.

0435.ti_vlib_obj_c64Px_3_0_0_7_eng.zip

Thank you.

Sincerely,

Sudhakar Ayyasamy

0 Joey Lin over 11 years ago in reply to Sudhakar Ayyasamy

Intellectual 670 points

Hi, Sudhakar:

These two APIs (VLIB_extractLumaFromYUYV, and VLIB_insertLumaIntoYUYV) have been tested and

verified. They work sound and fine.

We really appreciate your efforts and supports!

Sincerely,

Joey

0 Sudhakar Ayyasamy over 11 years ago in reply to Joey Lin

TI__Intellectual 1010 points

Joey,

Thank you for your feedback. These functions will be a part of future releases. This thread will be closed now.

Sincerely,

Sudhakar Ayyasamy

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VLIB library function input attribute modification request