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media: vivid: take data_offset into account for video output 

The video output sizeimage calculation did not take data_offset into account.

This can cause problems with video loopback or exporting output buffers for
use as dmabuf import buffers since the output buffer size is now too small.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2019-01-14 11:23:52 -05:00 committed by Mauro Carvalho Chehab
parent 4b837c6d7e
commit 987303cc17
1 changed files with 10 additions and 6 deletions
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16
drivers/media/platform/vivid/vivid-vid-out.c
View File

@ -28,11 +28,12 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
const struct vivid_fmt *vfmt = dev->fmt_out;
unsigned planes = vfmt->buffers;
unsigned h = dev->fmt_out_rect.height;
unsigned size = dev->bytesperline_out[0] * h;
unsigned int size = dev->bytesperline_out[0] * h + vfmt->data_offset[0];
unsigned p;
for (p = vfmt->buffers; p < vfmt->planes; p++)
size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p];
size += dev->bytesperline_out[p] * h / vfmt->vdownsampling[p] +
vfmt->data_offset[p];
if (dev->field_out == V4L2_FIELD_ALTERNATE) {
/*
@ -62,12 +63,14 @@ static int vid_out_queue_setup(struct vb2_queue *vq,
if (sizes[0] < size)
return -EINVAL;
for (p = 1; p < planes; p++) {
if (sizes[p] < dev->bytesperline_out[p] * h)
if (sizes[p] < dev->bytesperline_out[p] * h +
vfmt->data_offset[p])
return -EINVAL;
}
} else {
for (p = 0; p < planes; p++)
sizes[p] = p ? dev->bytesperline_out[p] * h : size;
sizes[p] = p ? dev->bytesperline_out[p] * h +
vfmt->data_offset[p] : size;
}
if (vq->num_buffers + *nbuffers < 2)
@ -321,7 +324,8 @@ int vivid_g_fmt_vid_out(struct file *file, void *priv,
for (p = 0; p < mp->num_planes; p++) {
mp->plane_fmt[p].bytesperline = dev->bytesperline_out[p];
mp->plane_fmt[p].sizeimage =
mp->plane_fmt[p].bytesperline * mp->height;
mp->plane_fmt[p].bytesperline * mp->height +
fmt->data_offset[p];
}
for (p = fmt->buffers; p < fmt->planes; p++) {
unsigned stride = dev->bytesperline_out[p];
@ -399,7 +403,7 @@ int vivid_try_fmt_vid_out(struct file *file, void *priv,
pfmt[p].bytesperline = bytesperline;
pfmt[p].sizeimage = (pfmt[p].bytesperline * mp->height) /
fmt->vdownsampling[p];
fmt->vdownsampling[p] + fmt->data_offset[p];
memset(pfmt[p].reserved, 0, sizeof(pfmt[p].reserved));
}