C66x Jpegenc lib 02.02.00.01 issue

Lucifar He

Expert 1425 points

Hi,

I am trying to use C66x Jpegenc lib 02.02.00.01 issue on a 6678evm board.

I found out that when the CGT compiler tool is of version 7.3.0 and above,

After loading the .out file, it does not stop at main. The state shows "running".

and then I click "suspend" button, the core stop at "__TI_decompress_rle_core"

And if I use CGT 7.2.9 or below, the whole program works file.

if I just remove the Jpeg encode related code, my program works file both in 7.3.0 and 7.2.9.

So I am pretty sure it's the Jpeg lib reason.

over 13 years ago

0 Paula Carrillo over 13 years ago

TI__Mastermind 40580 points

Hi Lucifar, there is any particular reason for which you want to upgrade the CGT?. Are you rebuilding the library and the testapplication with the same CGT version? or are you using pre-build lib (which come in the package)?

On the other hand, usually, if the second digit of a CGT version changes, this implies bigger modifications. And If you are using the pre-build lib (which was built using CGT 7.2.2) this could be the reason when you use CGT 7.2.9 TestApplication works but not when it is compiled with 7.3.0

Thank you,

Paula

0 Paula Carrillo over 13 years ago in reply to Paula Carrillo

TI__Mastermind 40580 points

Lucifar, as a test, a recompiled JPEG encoder library and TestApplication with CGT 7.3.2 and it everything is working OK.

Thank you,

Paula

0 Lucifar He over 13 years ago in reply to Paula Carrillo

Expert 1425 points

Hi Paula,

Thank you very much!

I need CGT 7.4 or later because another lib required so.

Can you send me you tested files?

I have give you my personal email address in conversations

B.R.

Lucifar

Paula Carrillo said:

Hi Lucifar, there is any particular reason for which you want to upgrade the CGT?. Are you rebuilding the library and the testapplication with the same CGT version? or are you using pre-build lib (which come in the package)?

On the other hand, usually, if the second digit of a CGT version changes, this implies bigger modifications. And If you are using the pre-build lib (which was built using CGT 7.2.2) this could be the reason when you use CGT 7.2.9 TestApplication works but not when it is compiled with 7.3.0

Thank you,

Paula

0 Paula Carrillo over 13 years ago in reply to Lucifar He

TI__Mastermind 40580 points

Hi Lucifar,

Please see attached JPEG E lib compiled using CGT 7.3.2 and CGT 7.4.15126.JPEG_E_Backup_CGT_7_3_2.rar

Thank you,

Paula

0 Paula Carrillo over 13 years ago in reply to Paula Carrillo

TI__Mastermind 40580 points

Sorry now.. JPEG E with CGT 7.4.14722.JPEG_E_Backup_CGT_7_4_1.rar

Paula

0 Lucifar He over 13 years ago in reply to Paula Carrillo

Expert 1425 points

Paula Carrillo said:

Hi Lucifar,

Please see attached JPEG E lib compiled using CGT 7.3.2 and CGT 7.4.15126.JPEG_E_Backup_CGT_7_3_2.rar

Thank you,

Paula

Thanks Paula you help me a lot

0 LI TIAN over 13 years ago in reply to Paula Carrillo

Prodigy 195 points

Dear Paula Carrillo: From the JPEG Baseline Profile Encoder (v02.02.00) on C66x User’s Guide.It seems that the jpegenc source code was included in this package!but i cannot find it . 1 where can i get the jpegenc source code! 2 how can i use jpegenc on 8core,if i want to accelerate the data rata? many thanks!

0 Paula Carrillo over 13 years ago in reply to LI TIAN

TI__Mastermind 40580 points

Hi Li, Our JPEG encoder for C66x is a single core codec, no data or task partion is done between cores, however you can run several instances per core for a multichannel application. About the source codec, you would need to work with a TI representer in order to get licensing.

Thank you,

Paula

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C66x Jpegenc lib 02.02.00.01 issue