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@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/media/video/videobuf-core.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c
index 63d7043..e573ca7 100644
--- a/drivers/media/video/videobuf-core.c
+++ b/drivers/media/video/videobuf-core.c
@@ -549,6 +549,13 @@ 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) {
--
1.7.1.rc1.12.ga601
--
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