From: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
All users of vb2_find_timestamp() combine it with vb2_get_buffer()
to retrieve a videobuf2 buffer, given a u64 timestamp.
Introduce an API for this use-case. Users will be converted to the new
API as follow-up commits.
Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
---
include/media/videobuf2-v4l2.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h
index d818d9707695..7f9ae5b39b78 100644
--- a/include/media/videobuf2-v4l2.h
+++ b/include/media/videobuf2-v4l2.h
@@ -78,6 +78,24 @@ struct vb2_v4l2_buffer {
int vb2_find_timestamp(const struct vb2_queue *q, u64 timestamp,
unsigned int start_idx);
+/**
+ * vb2_find_buffer() - Find a buffer with given timestamp
+ *
+ * @q: pointer to &struct vb2_queue with videobuf2 queue.
+ * @timestamp: the timestamp to find.
+ *
+ * Returns the buffer with the given @timestamp, or NULL if not found.
+ */
+static inline struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q,
+ u64 timestamp)
+{
+ int index = vb2_find_timestamp(q, timestamp, 0);
+
+ if (index < 0)
+ return NULL;
+ return vb2_get_buffer(q, index);
+}
+
int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b);
/**
--
2.34.3
