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V4L/DVB: v4l: videobuf: qbuf now uses relevant v4l2_buffer fields for OUTPUT types

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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: Pawel Osciak <p.osciak@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Pawel Osciak
2010-04-21 06:44:27 -03:00
committed by Mauro Carvalho Chehab
parent 72fcf2a8da
commit 96f2ec67b8
1 changed files with 7 additions and 0 deletions
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7
drivers/media/video/videobuf-core.c
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@@ -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) {