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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-04-11 09:36:57 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-04-16 23:45:33 +0200 |
| commit | ebd7c50510f4b56285bb9fb4ba56a501c9c8f7df (patch) | |
| tree | 62b8f34954fb8f5d17f6bb3b1f0ec0ac430cdf4d /drivers/media/v4l2-core/videobuf2-core.c | |
| parent | [media] vb2: move __qbuf_mmap before __qbuf_userptr (diff) | |
| download | linux-ebd7c50510f4b56285bb9fb4ba56a501c9c8f7df.tar.xz linux-ebd7c50510f4b56285bb9fb4ba56a501c9c8f7df.zip | |
[media] vb2: set timestamp when using write()
When using write() to write data to an output video node the vb2 core
should set timestamps if V4L2_BUF_FLAG_TIMESTAMP_COPY is set. Nobody
else is able to provide this information with the write() operation.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/media/v4l2-core/videobuf2-core.c')
| -rw-r--r-- | drivers/media/v4l2-core/videobuf2-core.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c index 0f495f1d6946..07ab0677e259 100644 --- a/drivers/media/v4l2-core/videobuf2-core.c +++ b/drivers/media/v4l2-core/videobuf2-core.c @@ -22,6 +22,7 @@ #include <media/v4l2-dev.h> #include <media/v4l2-fh.h> #include <media/v4l2-event.h> +#include <media/v4l2-common.h> #include <media/videobuf2-core.h> static int debug; @@ -2800,6 +2801,14 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ { struct vb2_fileio_data *fileio; struct vb2_fileio_buf *buf; + /* + * When using write() to write data to an output video node the vb2 core + * should set timestamps if V4L2_BUF_FLAG_TIMESTAMP_COPY is set. Nobody + * else is able to provide this information with the write() operation. + */ + bool set_timestamp = !read && + (q->timestamp_flags & V4L2_BUF_FLAG_TIMESTAMP_MASK) == + V4L2_BUF_FLAG_TIMESTAMP_COPY; int ret, index; dprintk(3, "mode %s, offset %ld, count %zd, %sblocking\n", @@ -2901,6 +2910,8 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ fileio->b.memory = q->memory; fileio->b.index = index; fileio->b.bytesused = buf->pos; + if (set_timestamp) + v4l2_get_timestamp(&fileio->b.timestamp); ret = vb2_internal_qbuf(q, &fileio->b); dprintk(5, "vb2_dbuf result: %d\n", ret); if (ret) |