diff options
Diffstat (limited to 'include/media/videobuf2-core.h')
| -rw-r--r-- | include/media/videobuf2-core.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index c03ef7cc5071..640aabe69450 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -1163,6 +1163,24 @@ static inline void vb2_clear_last_buffer_dequeued(struct vb2_queue *q) q->last_buffer_dequeued = false; } +/** + * vb2_get_buffer() - get a buffer from a queue + * @q: pointer to &struct vb2_queue with videobuf2 queue. + * @index: buffer index + * + * This function obtains a buffer from a queue, by its index. + * Keep in mind that there is no refcounting involved in this + * operation, so the buffer lifetime should be taken into + * consideration. + */ +static inline struct vb2_buffer *vb2_get_buffer(struct vb2_queue *q, + unsigned int index) +{ + if (index < q->num_buffers) + return q->bufs[index]; + return NULL; +} + /* * The following functions are not part of the vb2 core API, but are useful * functions for videobuf2-*. |