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Commit 96f2ec67 authored by Pawel Osciak's avatar Pawel Osciak Committed by Mauro Carvalho Chehab
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V4L/DVB: v4l: videobuf: qbuf now uses relevant v4l2_buffer fields for OUTPUT types 



According to the V4L2 specification, applications set bytesused, field and
timestamp fields of struct v4l2_buffer when the buffer is intended for
output and memory type is MMAP. This adds proper copying of those values
to videobuf_buffer so drivers can use them.

Signed-off-by: default avatarPawel Osciak <p.osciak@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 72fcf2a8

drivers/media/video/videobuf-core.c

+7 −0
Original line number Diff line number Diff line
@@ -544,6 +544,13 @@ int videobuf_qbuf(struct videobuf_queue *q, struct v4l2_buffer *b) 
				   "but buffer addr is zero!\n");

			goto done;

		}

		if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT

		    || q->type == V4L2_BUF_TYPE_VBI_OUTPUT

		    || q->type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) {

			buf->size = b->bytesused;

			buf->field = b->field;

			buf->ts = b->timestamp;

		}

		break;

	case V4L2_MEMORY_USERPTR:

		if (b->length < buf->bsize) {