linux-kernel - Re: [PATCH v2 4/8] media: vidc: encoder: add video encoder files

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Date:   Thu, 29 Sep 2016 03:53:09 +0300
From:   Stanimir Varbanov <stanimir.varbanov@...aro.org>
To:     Hans Verkuil <hverkuil@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2 4/8] media: vidc: encoder: add video encoder files

Hi Hans,

On 09/19/2016 01:15 PM, Hans Verkuil wrote:
> Many of my review comments for the decoder apply to the encoder as well,
> so I won't repeat those.

Sure, will address them too.

> 
> On 09/07/2016 01:37 PM, Stanimir Varbanov wrote:
>> This adds encoder part of the driver plus encoder controls.
>>
>> Signed-off-by: Stanimir Varbanov <stanimir.varbanov@...aro.org>
>> ---
>>  drivers/media/platform/qcom/vidc/venc.c       | 1252 +++++++++++++++++++++++++
>>  drivers/media/platform/qcom/vidc/venc.h       |   29 +
>>  drivers/media/platform/qcom/vidc/venc_ctrls.c |  396 ++++++++
>>  drivers/media/platform/qcom/vidc/venc_ctrls.h |   23 +
>>  4 files changed, 1700 insertions(+)
>>  create mode 100644 drivers/media/platform/qcom/vidc/venc.c
>>  create mode 100644 drivers/media/platform/qcom/vidc/venc.h
>>  create mode 100644 drivers/media/platform/qcom/vidc/venc_ctrls.c
>>  create mode 100644 drivers/media/platform/qcom/vidc/venc_ctrls.h
>>
>> diff --git a/drivers/media/platform/qcom/vidc/venc.c b/drivers/media/platform/qcom/vidc/venc.c
>> new file mode 100644
>> index 000000000000..3b65f851a807
>> --- /dev/null
>> +++ b/drivers/media/platform/qcom/vidc/venc.c
>> @@ -0,0 +1,1252 @@
> 
> <snip>
> 
>> +static int venc_s_selection(struct file *file, void *fh,
>> +			    struct v4l2_selection *s)
>> +{
>> +	return -EINVAL;
>> +}
> 
> Huh? Either remove this, or implement this correctly.

OK, I cannot remember why I keep it this way, might be v4l2-compliance

> 
> <snip>
> 
>> +static int venc_subscribe_event(struct v4l2_fh *fh,
>> +				const struct  v4l2_event_subscription *sub)
>> +{
>> +	switch (sub->type) {
>> +	case V4L2_EVENT_EOS:
>> +		return v4l2_event_subscribe(fh, sub, 2, NULL);
>> +	case V4L2_EVENT_SOURCE_CHANGE:
>> +		return v4l2_src_change_event_subscribe(fh, sub);
> 
> These two events aren't used in this driver AFAICT, so this can be dropped.
> 
> Since that leaves just V4L2_EVENT_CTRL this function can be replaced by
> v4l2_ctrl_subscribe_event().

sure I can remove it.

-- 
regards,
Stan