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authorHans Verkuil <hverkuil-cisco@xs4all.nl>2019-02-04 13:11:33 +0300
committerMauro Carvalho Chehab <mchehab+samsung@kernel.org>2019-02-18 22:44:20 +0300
commit7e4e71624491d8a8befe62b43138beb0ab696006 (patch)
tree9783e7926080cdfdad2b53d7c582eea07f0d7c56 /include/media/videobuf2-core.h
parentcfc7740835d09b98a304a4793c93b6074c04379e (diff)
downloadlinux-7e4e71624491d8a8befe62b43138beb0ab696006.tar.xz
media: vb2: keep track of timestamp status
If a stream is stopped, or if a USERPTR/DMABUF buffer is queued backed by a different user address or dmabuf fd, then the timestamp should be skipped by vb2_find_timestamp since the memory it refers to is no longer valid. So keep track of a 'copied_timestamp' state: it is set when the timestamp is copied from an output to a capture buffer, and is cleared when it is no longer valid. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'include/media/videobuf2-core.h')
-rw-r--r--include/media/videobuf2-core.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 6d5490bb91d3..a844abcae71e 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -262,6 +262,8 @@ struct vb2_buffer {
* prepared: this buffer has been prepared, i.e. the
* buf_prepare op was called. It is cleared again
* after the 'buf_finish' op is called.
+ * copied_timestamp: the timestamp of this capture buffer was copied
+ * from an output buffer.
* queued_entry: entry on the queued buffers list, which holds
* all buffers queued from userspace
* done_entry: entry on the list that stores all buffers ready
@@ -271,6 +273,7 @@ struct vb2_buffer {
enum vb2_buffer_state state;
unsigned int synced:1;
unsigned int prepared:1;
+ unsigned int copied_timestamp:1;
struct vb2_plane planes[VB2_MAX_PLANES];
struct list_head queued_entry;