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| author | Ezequiel Garcia <ezequiel@collabora.com> | 2022-07-11 22:11:34 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-07-17 11:10:11 +0100 |
| commit | 9d042e457ef8e3f883f0cba8a1eed633906deb78 (patch) | |
| tree | 5b124d9aeb9de3c9cf02dde82b6c244cf19300cf | |
| parent | f0b4a9c46c118d07ac4728323599e282c313799a (diff) | |
| download | linux-rpi-9d042e457ef8e3f883f0cba8a1eed633906deb78.tar.gz linux-rpi-9d042e457ef8e3f883f0cba8a1eed633906deb78.tar.bz2 linux-rpi-9d042e457ef8e3f883f0cba8a1eed633906deb78.zip | |
media: videobuf2: Introduce vb2_find_buffer()
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@collabora.com>
Acked-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
| -rw-r--r-- | drivers/media/common/videobuf2/videobuf2-v4l2.c | 12 | ||||
| -rw-r--r-- | include/media/videobuf2-v4l2.h | 10 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/media/common/videobuf2/videobuf2-v4l2.c b/drivers/media/common/videobuf2/videobuf2-v4l2.c index 075d24ebf44c..f26cb8586bd4 100644 --- a/drivers/media/common/videobuf2/videobuf2-v4l2.c +++ b/drivers/media/common/videobuf2/videobuf2-v4l2.c @@ -638,6 +638,18 @@ int vb2_find_timestamp(const struct vb2_queue *q, u64 timestamp, } EXPORT_SYMBOL_GPL(vb2_find_timestamp); +struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp) +{ + unsigned int i; + + for (i = 0; i < q->num_buffers; i++) + if (q->bufs[i]->copied_timestamp && + q->bufs[i]->timestamp == timestamp) + return vb2_get_buffer(q, i); + return NULL; +} +EXPORT_SYMBOL_GPL(vb2_find_buffer); + /* * vb2_querybuf() - query video buffer information * @q: videobuf queue diff --git a/include/media/videobuf2-v4l2.h b/include/media/videobuf2-v4l2.h index d818d9707695..76e405c0b003 100644 --- a/include/media/videobuf2-v4l2.h +++ b/include/media/videobuf2-v4l2.h @@ -78,6 +78,16 @@ 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. + */ +struct vb2_buffer *vb2_find_buffer(struct vb2_queue *q, u64 timestamp); + int vb2_querybuf(struct vb2_queue *q, struct v4l2_buffer *b); /** |