Skip to content

L
linux
Commit f6a373fb authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files
Options

[media] videodev2.h.xml: Update to reflect videodev2.h changes 

A few changes happened at videodev2.h:
	- Addition of multiplane API;
	- removal of VIDIOC_*_OLD ioctls;
	- a few more video standards.

Update the file to reflect the latest changes.
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent d4c9adb7
Show whitespace changes
Inline Side-by-side
Showing with 129 additions and 12 deletions
Documentation/DocBook/v4l/videodev2.h.xml
View file @ f6a373fb
......@@ -71,6 +71,7 @@
* Moved from videodev.h
*/
#define VIDEO_MAX_FRAME 32
#define VIDEO_MAX_PLANES 8
#ifndef __KERNEL__
......@@ -158,9 +159,23 @@ enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> {
/* Experimental */
V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8,
#endif
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9,
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10,
V4L2_BUF_TYPE_PRIVATE = 0x80,
};
#define V4L2_TYPE_IS_MULTIPLANAR(type) \
((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE \
|| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
#define V4L2_TYPE_IS_OUTPUT(type) \
((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT \
|| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE \
|| (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY \
|| (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY \
|| (type) == V4L2_BUF_TYPE_VBI_OUTPUT \
|| (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT)
enum <link linkend="v4l2-tuner-type">v4l2_tuner_type</link> {
V4L2_TUNER_RADIO = 1,
V4L2_TUNER_ANALOG_TV = 2,
......@@ -246,6 +261,11 @@ struct <link linkend="v4l2-capability">v4l2_capability</link> {
#define V4L2_CAP_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */
#define V4L2_CAP_RDS_OUTPUT 0x00000800 /* Is an RDS encoder */
/* Is a video capture device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000
/* Is a video output device that supports multiplanar formats */
#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000
#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */
#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */
#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */
......@@ -320,6 +340,13 @@ struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> {
#define <link linkend="V4L2-PIX-FMT-NV16">V4L2_PIX_FMT_NV16</link> v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */
#define <link linkend="V4L2-PIX-FMT-NV61">V4L2_PIX_FMT_NV61</link> v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */
/* two non contiguous planes - one Y, one Cr + Cb interleaved */
#define <link linkend="V4L2-PIX-FMT-NV12M">V4L2_PIX_FMT_NV12M</link> v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */
#define <link linkend="V4L2-PIX-FMT-NV12MT">V4L2_PIX_FMT_NV12MT</link> v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 macroblocks */
/* three non contiguous planes - Y, Cb, Cr */
#define <link linkend="V4L2-PIX-FMT-YUV420M">V4L2_PIX_FMT_YUV420M</link> v4l2_fourcc('Y', 'M', '1', '2') /* 12 YUV420 planar */
/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */
#define <link linkend="V4L2-PIX-FMT-SBGGR8">V4L2_PIX_FMT_SBGGR8</link> v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */
#define <link linkend="V4L2-PIX-FMT-SGBRG8">V4L2_PIX_FMT_SGBRG8</link> v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */
......@@ -518,6 +545,62 @@ struct <link linkend="v4l2-requestbuffers">v4l2_requestbuffers</link> {
__u32 reserved[2];
};
/**
* struct <link linkend="v4l2-plane">v4l2_plane</link> - plane info for multi-planar buffers
* @bytesused: number of bytes occupied by data in the plane (payload)
* @length: size of this plane (NOT the payload) in bytes
* @mem_offset: when memory in the associated struct <link linkend="v4l2-buffer">v4l2_buffer</link> is
* V4L2_MEMORY_MMAP, equals the offset from the start of
* the device memory for this plane (or is a "cookie" that
* should be passed to mmap() called on the video node)
* @userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer
* pointing to this plane
* @data_offset: offset in the plane to the start of data; usually 0,
* unless there is a header in front of the data
*
* Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer
* with two planes can have one plane for Y, and another for interleaved CbCr
* components. Each plane can reside in a separate memory buffer, or even in
* a completely separate memory node (e.g. in embedded devices).
*/
struct <link linkend="v4l2-plane">v4l2_plane</link> {
__u32 bytesused;
__u32 length;
union {
__u32 mem_offset;
unsigned long userptr;
} m;
__u32 data_offset;
__u32 reserved[11];
};
/**
* struct <link linkend="v4l2-buffer">v4l2_buffer</link> - video buffer info
* @index: id number of the buffer
* @type: buffer type (type == *_MPLANE for multiplanar buffers)
* @bytesused: number of bytes occupied by data in the buffer (payload);
* unused (set to 0) for multiplanar buffers
* @flags: buffer informational flags
* @field: field order of the image in the buffer
* @timestamp: frame timestamp
* @timecode: frame timecode
* @sequence: sequence count of this frame
* @memory: the method, in which the actual video data is passed
* @offset: for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP;
* offset from the start of the device memory for this plane,
* (or a "cookie" that should be passed to mmap() as offset)
* @userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR;
* a userspace pointer pointing to this buffer
* @planes: for multiplanar buffers; userspace pointer to the array of plane
* info structs for this buffer
* @length: size in bytes of the buffer (NOT its payload) for single-plane
* buffers (when type != *_MPLANE); number of elements in the
* planes array for multi-plane buffers
* @input: input number from which the video data has has been captured
*
* Contains data exchanged by application and driver using one of the Streaming
* I/O methods.
*/
struct <link linkend="v4l2-buffer">v4l2_buffer</link> {
__u32 index;
enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type;
......@@ -533,6 +616,7 @@ struct <link linkend="v4l2-buffer">v4l2_buffer</link> {
union {
__u32 offset;
unsigned long userptr;
struct <link linkend="v4l2-plane">v4l2_plane</link> *planes;
} m;
__u32 length;
__u32 input;
......@@ -1623,12 +1707,56 @@ struct <link linkend="v4l2-mpeg-vbi-fmt-ivtv">v4l2_mpeg_vbi_fmt_ivtv</link> {
* A G G R E G A T E S T R U C T U R E S
*/
/* Stream data format
/**
* struct <link linkend="v4l2-plane-pix-format">v4l2_plane_pix_format</link> - additional, per-plane format definition
* @sizeimage: maximum size in bytes required for data, for which
* this plane will be used
* @bytesperline: distance in bytes between the leftmost pixels in two
* adjacent lines
*/
struct <link linkend="v4l2-plane-pix-format">v4l2_plane_pix_format</link> {
__u32 sizeimage;
__u16 bytesperline;
__u16 reserved[7];
} __attribute__ ((packed));
/**
* struct <link linkend="v4l2-pix-format-mplane">v4l2_pix_format_mplane</link> - multiplanar format definition
* @width: image width in pixels
* @height: image height in pixels
* @pixelformat: little endian four character code (fourcc)
* @field: field order (for interlaced video)
* @colorspace: supplemental to pixelformat
* @plane_fmt: per-plane information
* @num_planes: number of planes for this format
*/
struct <link linkend="v4l2-pix-format-mplane">v4l2_pix_format_mplane</link> {
__u32 width;
__u32 height;
__u32 pixelformat;
enum <link linkend="v4l2-field">v4l2_field</link> field;
enum <link linkend="v4l2-colorspace">v4l2_colorspace</link> colorspace;
struct <link linkend="v4l2-plane-pix-format">v4l2_plane_pix_format</link> plane_fmt[VIDEO_MAX_PLANES];
__u8 num_planes;
__u8 reserved[11];
} __attribute__ ((packed));
/**
* struct <link linkend="v4l2-format">v4l2_format</link> - stream data format
* @type: type of the data stream
* @pix: definition of an image format
* @pix_mp: definition of a multiplanar image format
* @win: definition of an overlaid image
* @vbi: raw VBI capture or output parameters
* @sliced: sliced VBI capture or output parameters
* @raw_data: placeholder for future extensions and custom formats
*/
struct <link linkend="v4l2-format">v4l2_format</link> {
enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type;
union {
struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */
struct <link linkend="v4l2-pix-format-mplane">v4l2_pix_format_mplane</link> pix_mp; /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */
struct <link linkend="v4l2-window">v4l2_window</link> win; /* V4L2_BUF_TYPE_VIDEO_OVERLAY */
struct <link linkend="v4l2-vbi-format">v4l2_vbi_format</link> vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */
struct <link linkend="v4l2-sliced-vbi-format">v4l2_sliced_vbi_format</link> sliced; /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */
......@@ -1636,7 +1764,6 @@ struct <link linkend="v4l2-format">v4l2_format</link> {
} fmt;
};
/* Stream type-dependent parameters
*/
struct <link linkend="v4l2-streamparm">v4l2_streamparm</link> {
......@@ -1809,16 +1936,6 @@ struct <link linkend="v4l2-dbg-chip-ident">v4l2_dbg_chip_ident</link> {
/* Reminder: when adding new ioctls please add support for them to
drivers/media/video/v4l2-compat-ioctl32.c as well! */
#ifdef __OLD_VIDIOC_
/* for compatibility, will go away some day */
#define VIDIOC_OVERLAY_OLD _IOWR('V', 14, int)
#define VIDIOC_S_PARM_OLD _IOW('V', 22, struct <link linkend="v4l2-streamparm">v4l2_streamparm</link>)
#define VIDIOC_S_CTRL_OLD _IOW('V', 28, struct <link linkend="v4l2-control">v4l2_control</link>)
#define VIDIOC_G_AUDIO_OLD _IOWR('V', 33, struct <link linkend="v4l2-audio">v4l2_audio</link>)
#define VIDIOC_G_AUDOUT_OLD _IOWR('V', 49, struct <link linkend="v4l2-audioout">v4l2_audioout</link>)
#define VIDIOC_CROPCAP_OLD _IOR('V', 58, struct <link linkend="v4l2-cropcap">v4l2_cropcap</link>)
#endif
#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */
#endif /* __LINUX_VIDEODEV2_H */
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7