Commit ebd7c505 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab

[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: default avatarHans Verkuil <hans.verkuil@cisco.com>
Acked-by: default avatarPawel Osciak <pawel@osciak.com>
Acked-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent dcc2428a
......@@ -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)
......
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