Re: [CODA] Info about internal buffers in CodaDX6

["Gaëtan Carlier" <gcembed@gmail.com>]

Hello,
No one can give me more information about these registers ?
Thank you.
Bets regards,
Gaëtan Carlier.

On 06/03/2014 10:32 AM, Gaëtan Carlier wrote:
> Dear,
> I am back to add support of h.264 decoding using Coda DX6 on i.MX27
> (after long months of inactivity).
> I base my work on driver from linux 2.6.22 (libvpu) and last coda.c from
> linux-next/master.
>
> When I send DEC_SEQ_INIT command, it fails but I don't know why.
> 1) Which internal buffers do Coda DX6 really have/used for decoding
> PARABUF, WORKBUF, PSBUF, ...) ?
> 2) What is their role ?
> 3) I see in some code that there is a command
> CODA_RET_DEC_SEQ_ERR_REASON (0x1E0), which has the same opcode has
> RET_DEC_SEQ_NEXT_FRAME_NUM, but when I run this command after
> DEC_SEQ_INIT, it returns 1 that does not seems to be correct error
> (regarding RetCode enum in vpu_lib.h in libvpu)
>
> Code is based on 3.6.0 kernel revision with some backport from more
> recent version of coda.c
>
> Thanks a lot for your help.
> Best regards,
> Gaëtan Carlier.