Re: [PATCH 1/3] s5p-mfc: separate encoder parameters for h264 and mpeg4

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On 05/28/2013 10:31 AM, Sachin Kamat wrote:
> Hi Andrzej,
>
> On 28 May 2013 12:56, Andrzej Hajda <a.hajda@xxxxxxxxxxx> wrote:
>> This patch fixes a bug which caused overwriting h264 codec
>> parameters by mpeg4 parameters during V4L2 control setting.
> Just curious, what was the use case that triggered this issue?
>
For example it was not possible to set h264 profile and level -
they were overwritten by "struct s5p_mfc_mpeg4_enc_params" fields.

In general all 'union' fields of s5p_mfc_h264_enc_params were
overwritten by
s5p_mfc_mpeg4_enc_params and vice versa, the control which was set later
was 'the winner'.
Furthermore during stream start v4l2_ctrl_handler_setup was called so
all controls
were refreshed, so the final winners order was determined by controls
definition order.

Regards
Andrzej





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