From f8f3914cf922f5f9e1d60e9e10f6fb92742907ad Mon Sep 17 00:00:00 2001 From: Pawel Osciak Date: Thu, 29 Jul 2010 14:44:25 -0300 Subject: [media] v4l: Add multi-planar API definitions to the V4L2 API Multi-planar API is as a backwards-compatible extension of the V4L2 API, which allows video buffers to consist of one or more planes. Planes are separate memory buffers; each has its own mapping, backed by usually separate physical memory buffers. Many different uses for the multi-planar API are possible, examples include: - embedded devices requiring video components to be placed in physically separate buffers, e.g. for Samsung S3C/S5P SoC series' video codec, Y and interleaved Cb/Cr components reside in buffers in different memory banks; - applications may receive (or choose to store) video data of one video buffer in separate memory buffers; such data would have to be temporarily copied together into one buffer before passing it to a V4L2 device; - applications or drivers may want to pass metadata related to a buffer and it may not be possible to place it in the same buffer, together with video data. [mchehab@redhat.com: CodingStyle fixes] Signed-off-by: Pawel Osciak Signed-off-by: Kyungmin Park Reviewed-by: Marek Szyprowski Signed-off-by: Marek Szyprowski Reviewed-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-ioctl.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/media/video/v4l2-ioctl.c') diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index f51327ef6757..1a9d90ab666b 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -165,6 +165,8 @@ const char *v4l2_type_names[] = { [V4L2_BUF_TYPE_SLICED_VBI_CAPTURE] = "sliced-vbi-cap", [V4L2_BUF_TYPE_SLICED_VBI_OUTPUT] = "sliced-vbi-out", [V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY] = "vid-out-overlay", + [V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE] = "vid-cap-mplane", + [V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE] = "vid-out-mplane", }; EXPORT_SYMBOL(v4l2_type_names); -- cgit v1.2.3