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[media] v4l: Handle buffer timestamp flags correctly 

For COPY timestamps, buffer timestamp source flags will traverse the queue
untouched.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Sakari Ailus 2014-02-25 19:08:52 -03:00 committed by Mauro Carvalho Chehab
parent 872484ce40
commit 7ce6fd8f18
1 changed files with 20 additions and 1 deletions
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21
drivers/media/v4l2-core/videobuf2-core.c
View File

@ -488,7 +488,16 @@ static void __fill_v4l2_buffer(struct vb2_buffer *vb, struct v4l2_buffer *b)
* Clear any buffer state related flags.
*/
b->flags &= ~V4L2_BUFFER_MASK_FLAGS;
b->flags |= q->timestamp_flags;
b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK;
if ((q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK) !=
V4L2_BUF_FLAG_TIMESTAMP_COPY) {
/*
* For non-COPY timestamps, drop timestamp source bits
* and obtain the timestamp source from the queue.
*/
b->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
b->flags |= q->timestamp_flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
}
switch (vb->state) {
case VB2_BUF_STATE_QUEUED:
@ -1031,6 +1040,16 @@ static void __fill_vb2_buffer(struct vb2_buffer *vb, const struct v4l2_buffer *b
/* Zero flags that the vb2 core handles */
vb->v4l2_buf.flags = b->flags & ~V4L2_BUFFER_MASK_FLAGS;
if ((vb->vb2_queue->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK) !=
V4L2_BUF_FLAG_TIMESTAMP_COPY || !V4L2_TYPE_IS_OUTPUT(b->type)) {
/*
* Non-COPY timestamps and non-OUTPUT queues will get
* their timestamp and timestamp source flags from the
* queue.
*/
vb->v4l2_buf.flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
}
if (V4L2_TYPE_IS_OUTPUT(b->type)) {
/*
* For output buffers mask out the timecode flag: