Re: [PATCH 02/12] v4l2-ioctl.c: use check_fmt for enum/g/s/try_fmt

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 01/26/2018 03:41 PM, Sakari Ailus wrote:
> Hi Hans,
> 
> On Fri, Jan 26, 2018 at 01:43:17PM +0100, Hans Verkuil wrote:
>> From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>>
>> Don't duplicate the buffer type checks in enum/g/s/try_fmt.
>> The check_fmt function does that already.
>>
>> It is hard to keep the checks in sync for all these functions and
>> in fact the check for VBI was wrong in the _fmt functions as it
>> allowed SDR types as well. This caused a v4l2-compliance failure
>> for /dev/swradio0 using vivid.
>>
>> This simplifies the code and keeps the check in one place and
>> fixes the SDR/VBI bug.
>>
>> Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
>> ---
>>  drivers/media/v4l2-core/v4l2-ioctl.c | 140 ++++++++++++++---------------------
>>  1 file changed, 54 insertions(+), 86 deletions(-)
>>
>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c
>> index 59d2100eeff6..c7f6b65d3ad7 100644
>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> @@ -1316,52 +1316,50 @@ static int v4l_enum_fmt(const struct v4l2_ioctl_ops *ops,
>>  				struct file *file, void *fh, void *arg)
>>  {
>>  	struct v4l2_fmtdesc *p = arg;
>> -	struct video_device *vfd = video_devdata(file);
>> -	bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
>> -	bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
>> -	bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
>> -	bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
>> -	bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
>> -	int ret = -EINVAL;
>> +	int ret = check_fmt(file, p->type);
> 
> I'd separate this from the variable declaration. The function is doing more
> than just fetch something to be used as a shorthand locally. I.e.
> 
> 	int ret;
> 
> 	ret = check_fmt(file, p->type);
> 
> Same elsewhere.

I'm not making this change. It's been like that since forever, and I don't
feel I should change this in this patch. I personally don't really care one
way or another, and especially in smaller functions like v4l_qbuf it
actually looks kind of weird to change it.

In any case, a change like that doesn't belong here.

Regards,

	Hans

> 
> The patch appears to be making an assumption that get_fmt will be
> universally supported on any buffer type, or that buffer type is not
> supported at all. I don't see a problem with the approach, but it'd be nice
> to document it, perhaps in struct v4l2_ioctl_ops KernelDoc documentation.
> 
> check_fmt() allows V4L2_BUF_TYPE_VBI_CAPTURE, V4L2_BUF_TYPE_VBI_OUTPUT,
> V4L2_BUF_TYPE_SLICED_VBI_CAPTURE and V4L2_BUF_TYPE_SLICED_VBI_OUTPUT that
> the original code did not for VIDIOC_ENUM_FMT. Is the change intentional?
> 
> Documentation should be updated regarding SDR and META formats (buffer
> type) but that's out of scope of the patchset:
> 
> <URL:https://hverkuil.home.xs4all.nl/spec/uapi/v4l/vidioc-enum-fmt.html>
> 
>> +
>> +	if (ret)
>> +		return ret;
>> +	ret = -EINVAL;
>>  
>>  	switch (p->type) {
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
>> -		if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_enum_fmt_vid_cap))
>> +		if (unlikely(!ops->vidioc_enum_fmt_vid_cap))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_vid_cap(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_cap_mplane))
>> +		if (unlikely(!ops->vidioc_enum_fmt_vid_cap_mplane))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_vid_cap_mplane(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_vid_overlay))
>> +		if (unlikely(!ops->vidioc_enum_fmt_vid_overlay))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_vid_overlay(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out))
>> +		if (unlikely(!ops->vidioc_enum_fmt_vid_out))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_vid_out(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_enum_fmt_vid_out_mplane))
>> +		if (unlikely(!ops->vidioc_enum_fmt_vid_out_mplane))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_vid_out_mplane(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_SDR_CAPTURE:
>> -		if (unlikely(!is_rx || !is_sdr || !ops->vidioc_enum_fmt_sdr_cap))
>> +		if (unlikely(!ops->vidioc_enum_fmt_sdr_cap))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_sdr_cap(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_SDR_OUTPUT:
>> -		if (unlikely(!is_tx || !is_sdr || !ops->vidioc_enum_fmt_sdr_out))
>> +		if (unlikely(!ops->vidioc_enum_fmt_sdr_out))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_sdr_out(file, fh, arg);
>>  		break;
>>  	case V4L2_BUF_TYPE_META_CAPTURE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_enum_fmt_meta_cap))
>> +		if (unlikely(!ops->vidioc_enum_fmt_meta_cap))
>>  			break;
>>  		ret = ops->vidioc_enum_fmt_meta_cap(file, fh, arg);
>>  		break;
>> @@ -1375,13 +1373,10 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
>>  				struct file *file, void *fh, void *arg)
>>  {
>>  	struct v4l2_format *p = arg;
>> -	struct video_device *vfd = video_devdata(file);
>> -	bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
>> -	bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
>> -	bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
>> -	bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
>> -	bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
>> -	int ret;
>> +	int ret = check_fmt(file, p->type);
>> +
>> +	if (ret)
>> +		return ret;
>>  
>>  	/*
>>  	 * fmt can't be cleared for these overlay types due to the 'clips'
>> @@ -1409,7 +1404,7 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
>>  
>>  	switch (p->type) {
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
>> -		if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_g_fmt_vid_cap))
>> +		if (unlikely(!ops->vidioc_g_fmt_vid_cap))
>>  			break;
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		ret = ops->vidioc_g_fmt_vid_cap(file, fh, arg);
>> @@ -1417,23 +1412,15 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		return ret;
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap_mplane))
>> -			break;
>>  		return ops->vidioc_g_fmt_vid_cap_mplane(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_overlay))
>> -			break;
>>  		return ops->vidioc_g_fmt_vid_overlay(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VBI_CAPTURE:
>> -		if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_vbi_cap))
>> -			break;
>>  		return ops->vidioc_g_fmt_vbi_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
>> -		if (unlikely(!is_rx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_cap))
>> -			break;
>>  		return ops->vidioc_g_fmt_sliced_vbi_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out))
>> +		if (unlikely(!ops->vidioc_g_fmt_vid_out))
>>  			break;
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		ret = ops->vidioc_g_fmt_vid_out(file, fh, arg);
>> @@ -1441,32 +1428,18 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops,
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		return ret;
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_mplane))
>> -			break;
>>  		return ops->vidioc_g_fmt_vid_out_mplane(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_g_fmt_vid_out_overlay))
>> -			break;
>>  		return ops->vidioc_g_fmt_vid_out_overlay(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VBI_OUTPUT:
>> -		if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_vbi_out))
>> -			break;
>>  		return ops->vidioc_g_fmt_vbi_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
>> -		if (unlikely(!is_tx || is_vid || !ops->vidioc_g_fmt_sliced_vbi_out))
>> -			break;
>>  		return ops->vidioc_g_fmt_sliced_vbi_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SDR_CAPTURE:
>> -		if (unlikely(!is_rx || !is_sdr || !ops->vidioc_g_fmt_sdr_cap))
>> -			break;
>>  		return ops->vidioc_g_fmt_sdr_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SDR_OUTPUT:
>> -		if (unlikely(!is_tx || !is_sdr || !ops->vidioc_g_fmt_sdr_out))
>> -			break;
>>  		return ops->vidioc_g_fmt_sdr_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_META_CAPTURE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_meta_cap))
>> -			break;
>>  		return ops->vidioc_g_fmt_meta_cap(file, fh, arg);
>>  	}
>>  	return -EINVAL;
>> @@ -1492,12 +1465,10 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
>>  {
>>  	struct v4l2_format *p = arg;
>>  	struct video_device *vfd = video_devdata(file);
>> -	bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
>> -	bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
>> -	bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
>> -	bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
>> -	bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
>> -	int ret;
>> +	int ret = check_fmt(file, p->type);
>> +
>> +	if (ret)
>> +		return ret;
>>  
>>  	ret = v4l_enable_media_source(vfd);
>>  	if (ret)
>> @@ -1506,37 +1477,37 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
>>  
>>  	switch (p->type) {
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
>> -		if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_s_fmt_vid_cap))
>> +		if (unlikely(!ops->vidioc_s_fmt_vid_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix);
>>  		ret = ops->vidioc_s_fmt_vid_cap(file, fh, arg);
>>  		/* just in case the driver zeroed it again */
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>> -		if (is_tch)
>> +		if (vfd->vfl_type == VFL_TYPE_TOUCH)
>>  			v4l_pix_format_touch(&p->fmt.pix);
>>  		return ret;
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_cap_mplane))
>> +		if (unlikely(!ops->vidioc_s_fmt_vid_cap_mplane))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
>>  		return ops->vidioc_s_fmt_vid_cap_mplane(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_vid_overlay))
>> +		if (unlikely(!ops->vidioc_s_fmt_vid_overlay))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.win);
>>  		return ops->vidioc_s_fmt_vid_overlay(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VBI_CAPTURE:
>> -		if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_vbi_cap))
>> +		if (unlikely(!ops->vidioc_s_fmt_vbi_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.vbi);
>>  		return ops->vidioc_s_fmt_vbi_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
>> -		if (unlikely(!is_rx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_cap))
>> +		if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sliced);
>>  		return ops->vidioc_s_fmt_sliced_vbi_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out))
>> +		if (unlikely(!ops->vidioc_s_fmt_vid_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix);
>>  		ret = ops->vidioc_s_fmt_vid_out(file, fh, arg);
>> @@ -1544,37 +1515,37 @@ static int v4l_s_fmt(const struct v4l2_ioctl_ops *ops,
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		return ret;
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_mplane))
>> +		if (unlikely(!ops->vidioc_s_fmt_vid_out_mplane))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
>>  		return ops->vidioc_s_fmt_vid_out_mplane(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_s_fmt_vid_out_overlay))
>> +		if (unlikely(!ops->vidioc_s_fmt_vid_out_overlay))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.win);
>>  		return ops->vidioc_s_fmt_vid_out_overlay(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VBI_OUTPUT:
>> -		if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_vbi_out))
>> +		if (unlikely(!ops->vidioc_s_fmt_vbi_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.vbi);
>>  		return ops->vidioc_s_fmt_vbi_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
>> -		if (unlikely(!is_tx || is_vid || !ops->vidioc_s_fmt_sliced_vbi_out))
>> +		if (unlikely(!ops->vidioc_s_fmt_sliced_vbi_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sliced);
>>  		return ops->vidioc_s_fmt_sliced_vbi_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SDR_CAPTURE:
>> -		if (unlikely(!is_rx || !is_sdr || !ops->vidioc_s_fmt_sdr_cap))
>> +		if (unlikely(!ops->vidioc_s_fmt_sdr_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sdr);
>>  		return ops->vidioc_s_fmt_sdr_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SDR_OUTPUT:
>> -		if (unlikely(!is_tx || !is_sdr || !ops->vidioc_s_fmt_sdr_out))
>> +		if (unlikely(!ops->vidioc_s_fmt_sdr_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sdr);
>>  		return ops->vidioc_s_fmt_sdr_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_META_CAPTURE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_s_fmt_meta_cap))
>> +		if (unlikely(!ops->vidioc_s_fmt_meta_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.meta);
>>  		return ops->vidioc_s_fmt_meta_cap(file, fh, arg);
>> @@ -1586,19 +1557,16 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
>>  				struct file *file, void *fh, void *arg)
>>  {
>>  	struct v4l2_format *p = arg;
>> -	struct video_device *vfd = video_devdata(file);
>> -	bool is_vid = vfd->vfl_type == VFL_TYPE_GRABBER;
>> -	bool is_sdr = vfd->vfl_type == VFL_TYPE_SDR;
>> -	bool is_tch = vfd->vfl_type == VFL_TYPE_TOUCH;
>> -	bool is_rx = vfd->vfl_dir != VFL_DIR_TX;
>> -	bool is_tx = vfd->vfl_dir != VFL_DIR_RX;
>> -	int ret;
>> +	int ret = check_fmt(file, p->type);
>> +
>> +	if (ret)
>> +		return ret;
>>  
>>  	v4l_sanitize_format(p);
>>  
>>  	switch (p->type) {
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
>> -		if (unlikely(!is_rx || (!is_vid && !is_tch) || !ops->vidioc_try_fmt_vid_cap))
>> +		if (unlikely(!ops->vidioc_try_fmt_vid_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix);
>>  		ret = ops->vidioc_try_fmt_vid_cap(file, fh, arg);
>> @@ -1606,27 +1574,27 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		return ret;
>>  	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_cap_mplane))
>> +		if (unlikely(!ops->vidioc_try_fmt_vid_cap_mplane))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
>>  		return ops->vidioc_try_fmt_vid_cap_mplane(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OVERLAY:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_vid_overlay))
>> +		if (unlikely(!ops->vidioc_try_fmt_vid_overlay))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.win);
>>  		return ops->vidioc_try_fmt_vid_overlay(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VBI_CAPTURE:
>> -		if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_vbi_cap))
>> +		if (unlikely(!ops->vidioc_try_fmt_vbi_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.vbi);
>>  		return ops->vidioc_try_fmt_vbi_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SLICED_VBI_CAPTURE:
>> -		if (unlikely(!is_rx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_cap))
>> +		if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sliced);
>>  		return ops->vidioc_try_fmt_sliced_vbi_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out))
>> +		if (unlikely(!ops->vidioc_try_fmt_vid_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix);
>>  		ret = ops->vidioc_try_fmt_vid_out(file, fh, arg);
>> @@ -1634,37 +1602,37 @@ static int v4l_try_fmt(const struct v4l2_ioctl_ops *ops,
>>  		p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC;
>>  		return ret;
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_mplane))
>> +		if (unlikely(!ops->vidioc_try_fmt_vid_out_mplane))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.pix_mp.xfer_func);
>>  		return ops->vidioc_try_fmt_vid_out_mplane(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY:
>> -		if (unlikely(!is_tx || !is_vid || !ops->vidioc_try_fmt_vid_out_overlay))
>> +		if (unlikely(!ops->vidioc_try_fmt_vid_out_overlay))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.win);
>>  		return ops->vidioc_try_fmt_vid_out_overlay(file, fh, arg);
>>  	case V4L2_BUF_TYPE_VBI_OUTPUT:
>> -		if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_vbi_out))
>> +		if (unlikely(!ops->vidioc_try_fmt_vbi_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.vbi);
>>  		return ops->vidioc_try_fmt_vbi_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SLICED_VBI_OUTPUT:
>> -		if (unlikely(!is_tx || is_vid || !ops->vidioc_try_fmt_sliced_vbi_out))
>> +		if (unlikely(!ops->vidioc_try_fmt_sliced_vbi_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sliced);
>>  		return ops->vidioc_try_fmt_sliced_vbi_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SDR_CAPTURE:
>> -		if (unlikely(!is_rx || !is_sdr || !ops->vidioc_try_fmt_sdr_cap))
>> +		if (unlikely(!ops->vidioc_try_fmt_sdr_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sdr);
>>  		return ops->vidioc_try_fmt_sdr_cap(file, fh, arg);
>>  	case V4L2_BUF_TYPE_SDR_OUTPUT:
>> -		if (unlikely(!is_tx || !is_sdr || !ops->vidioc_try_fmt_sdr_out))
>> +		if (unlikely(!ops->vidioc_try_fmt_sdr_out))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.sdr);
>>  		return ops->vidioc_try_fmt_sdr_out(file, fh, arg);
>>  	case V4L2_BUF_TYPE_META_CAPTURE:
>> -		if (unlikely(!is_rx || !is_vid || !ops->vidioc_try_fmt_meta_cap))
>> +		if (unlikely(!ops->vidioc_try_fmt_meta_cap))
>>  			break;
>>  		CLEAR_AFTER_FIELD(p, fmt.meta);
>>  		return ops->vidioc_try_fmt_meta_cap(file, fh, arg);
>> -- 
>> 2.15.1
>>
> 




[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux