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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-02-04 13:11:33 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2019-02-18 22:44:20 +0300 |
| commit | 7e4e71624491d8a8befe62b43138beb0ab696006 (patch) | |
| tree | 9783e7926080cdfdad2b53d7c582eea07f0d7c56 /include/media/videobuf2-core.h | |
| parent | cfc7740835d09b98a304a4793c93b6074c04379e (diff) | |
| download | linux-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to is no longer valid.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cleared when it is no longer valid.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.h | 3 |
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; |