From 44aba0d9fed34bc0399faecf9c3891244c907b5c Mon Sep 17 00:00:00 2001 From: Walter Bender Date: Fri, 18 Feb 2011 13:43:29 +0000 Subject: moving camera code to its own directory now that it is a plugin --- diff --git a/camera/__init__.py b/camera/__init__.py new file mode 100644 index 0000000..e69de29 --- /dev/null +++ b/camera/__init__.py diff --git a/camera/tacamera.py b/camera/tacamera.py new file mode 100644 index 0000000..2177288 --- /dev/null +++ b/camera/tacamera.py @@ -0,0 +1,42 @@ +# -*- coding: utf-8 -*- +#Copyright (c) 2010, Walter Bender +#Copyright (c) 2010, Tony Forster + +#Permission is hereby granted, free of charge, to any person obtaining a copy +#of this software and associated documentation files (the "Software"), to deal +#in the Software without restriction, including without limitation the rights +#to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +#copies of the Software, and to permit persons to whom the Software is +#furnished to do so, subject to the following conditions: + +#The above copyright notice and this permission notice shall be included in +#all copies or substantial portions of the Software. + +#THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +#IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +#FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +#AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +#LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +#OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +#THE SOFTWARE. + +import gst, time + +GST_PIPE = ['v4l2src', 'ffmpegcolorspace', 'pngenc'] + +class Camera(): + """ A class for representing the video camera """ + + def __init__(self, imagepath): + GST_PIPE.append('filesink location=%s' % imagepath) + self.pipe = gst.parse_launch('!'.join(GST_PIPE)) + self.bus = self.pipe.get_bus() + + def save_camera_input_to_file(self): + """ Grab a frame from the camera """ + self.pipe.set_state(gst.STATE_PLAYING) + self.bus.poll(gst.MESSAGE_EOS, -1) + + def stop_camera_input(self): + self.pipe.set_state(gst.STATE_NULL) + diff --git a/camera/v4l2.py b/camera/v4l2.py new file mode 100644 index 0000000..9c052fd --- /dev/null +++ b/camera/v4l2.py @@ -0,0 +1,1914 @@ +# Python bindings for the v4l2 userspace api + +# Copyright (C) 1999-2009 the contributors + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# Alternatively you can redistribute this file under the terms of the +# BSD license as stated below: + +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in +# the documentation and/or other materials provided with the +# distribution. +# 3. The names of its contributors may not be used to endorse or promote +# products derived from this software without specific prior written +# permission. + +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED +# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +""" +Python bindings for the v4l2 userspace api in Linux 2.6.34 +""" + +# see linux/videodev2.h + +import ctypes + + +_IOC_NRBITS = 8 +_IOC_TYPEBITS = 8 +_IOC_SIZEBITS = 14 +_IOC_DIRBITS = 2 + +_IOC_NRSHIFT = 0 +_IOC_TYPESHIFT = _IOC_NRSHIFT + _IOC_NRBITS +_IOC_SIZESHIFT = _IOC_TYPESHIFT + _IOC_TYPEBITS +_IOC_DIRSHIFT = _IOC_SIZESHIFT + _IOC_SIZEBITS + +_IOC_NONE = 0 +_IOC_WRITE = 1 +_IOC_READ = 2 + + +def _IOC(dir_, type_, nr, size): + return ( + ctypes.c_int32(dir_ << _IOC_DIRSHIFT).value | + ctypes.c_int32(ord(type_) << _IOC_TYPESHIFT).value | + ctypes.c_int32(nr << _IOC_NRSHIFT).value | + ctypes.c_int32(size << _IOC_SIZESHIFT).value) + + +def _IOC_TYPECHECK(t): + return ctypes.sizeof(t) + + +def _IO(type_, nr): + return _IOC(_IOC_NONE, type_, nr, 0) + + +def _IOW(type_, nr, size): + return _IOC(_IOC_WRITE, type_, nr, _IOC_TYPECHECK(size)) + + +def _IOR(type_, nr, size): + return _IOC(_IOC_READ, type_, nr, _IOC_TYPECHECK(size)) + + +def _IOWR(type_, nr, size): + return _IOC(_IOC_READ | _IOC_WRITE, type_, nr, _IOC_TYPECHECK(size)) + + +# +# type alias +# + +enum = ctypes.c_uint +c_int = ctypes.c_int + + +# +# time +# + +class timeval(ctypes.Structure): + _fields_ = [ + ('secs', ctypes.c_long), + ('usecs', ctypes.c_long), + ] + + +# +# v4l2 +# + + +VIDEO_MAX_FRAME = 32 + + +VID_TYPE_CAPTURE = 1 +VID_TYPE_TUNER = 2 +VID_TYPE_TELETEXT = 4 +VID_TYPE_OVERLAY = 8 +VID_TYPE_CHROMAKEY = 16 +VID_TYPE_CLIPPING = 32 +VID_TYPE_FRAMERAM = 64 +VID_TYPE_SCALES = 128 +VID_TYPE_MONOCHROME = 256 +VID_TYPE_SUBCAPTURE = 512 +VID_TYPE_MPEG_DECODER = 1024 +VID_TYPE_MPEG_ENCODER = 2048 +VID_TYPE_MJPEG_DECODER = 4096 +VID_TYPE_MJPEG_ENCODER = 8192 + + +def v4l2_fourcc(a, b, c, d): + return ord(a) | (ord(b) << 8) | (ord(c) << 16) | (ord(d) << 24) + + +v4l2_field = enum +( + V4L2_FIELD_ANY, + V4L2_FIELD_NONE, + V4L2_FIELD_TOP, + V4L2_FIELD_BOTTOM, + V4L2_FIELD_INTERLACED, + V4L2_FIELD_SEQ_TB, + V4L2_FIELD_SEQ_BT, + V4L2_FIELD_ALTERNATE, + V4L2_FIELD_INTERLACED_TB, + V4L2_FIELD_INTERLACED_BT, +) = range(10) + + +def V4L2_FIELD_HAS_TOP(field): + return ( + field == V4L2_FIELD_TOP or + field == V4L2_FIELD_INTERLACED or + field == V4L2_FIELD_INTERLACED_TB or + field == V4L2_FIELD_INTERLACED_BT or + field == V4L2_FIELD_SEQ_TB or + field == V4L2_FIELD_SEQ_BT) + + +def V4L2_FIELD_HAS_BOTTOM(field): + return ( + field == V4L2_FIELD_BOTTOM or + field == V4L2_FIELD_INTERLACED or + field == V4L2_FIELD_INTERLACED_TB or + field == V4L2_FIELD_INTERLACED_BT or + field == V4L2_FIELD_SEQ_TB or + field == V4L2_FIELD_SEQ_BT) + + +def V4L2_FIELD_HAS_BOTH(field): + return ( + field == V4L2_FIELD_INTERLACED or + field == V4L2_FIELD_INTERLACED_TB or + field == V4L2_FIELD_INTERLACED_BT or + field == V4L2_FIELD_SEQ_TB or + field == V4L2_FIELD_SEQ_BT) + + +v4l2_buf_type = enum +( + V4L2_BUF_TYPE_VIDEO_CAPTURE, + V4L2_BUF_TYPE_VIDEO_OUTPUT, + V4L2_BUF_TYPE_VIDEO_OVERLAY, + V4L2_BUF_TYPE_VBI_CAPTURE, + V4L2_BUF_TYPE_VBI_OUTPUT, + V4L2_BUF_TYPE_SLICED_VBI_CAPTURE, + V4L2_BUF_TYPE_SLICED_VBI_OUTPUT, + V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY, + V4L2_BUF_TYPE_PRIVATE, +) = range(1, 9) + [0x80] + + +v4l2_ctrl_type = enum +( + V4L2_CTRL_TYPE_INTEGER, + V4L2_CTRL_TYPE_BOOLEAN, + V4L2_CTRL_TYPE_MENU, + V4L2_CTRL_TYPE_BUTTON, + V4L2_CTRL_TYPE_INTEGER64, + V4L2_CTRL_TYPE_CTRL_CLASS, + V4L2_CTRL_TYPE_STRING, +) = range(1, 8) + + +v4l2_tuner_type = enum +( + V4L2_TUNER_RADIO, + V4L2_TUNER_ANALOG_TV, + V4L2_TUNER_DIGITAL_TV, +) = range(1, 4) + + +v4l2_memory = enum +( + V4L2_MEMORY_MMAP, + V4L2_MEMORY_USERPTR, + V4L2_MEMORY_OVERLAY, +) = range(1, 4) + + +v4l2_colorspace = enum +( + V4L2_COLORSPACE_SMPTE170M, + V4L2_COLORSPACE_SMPTE240M, + V4L2_COLORSPACE_REC709, + V4L2_COLORSPACE_BT878, + V4L2_COLORSPACE_470_SYSTEM_M, + V4L2_COLORSPACE_470_SYSTEM_BG, + V4L2_COLORSPACE_JPEG, + V4L2_COLORSPACE_SRGB, +) = range(1, 9) + + +v4l2_priority = enum +( + V4L2_PRIORITY_UNSET, + V4L2_PRIORITY_BACKGROUND, + V4L2_PRIORITY_INTERACTIVE, + V4L2_PRIORITY_RECORD, + V4L2_PRIORITY_DEFAULT, +) = range(0, 4) + [2] + + +class v4l2_rect(ctypes.Structure): + _fields_ = [ + ('left', ctypes.c_int32), + ('top', ctypes.c_int32), + ('width', ctypes.c_int32), + ('height', ctypes.c_int32), + ] + + +class v4l2_fract(ctypes.Structure): + _fields_ = [ + ('numerator', ctypes.c_uint32), + ('denominator', ctypes.c_uint32), + ] + + +# +# Driver capabilities +# + +class v4l2_capability(ctypes.Structure): + _fields_ = [ + ('driver', ctypes.c_char * 16), + ('card', ctypes.c_char * 32), + ('bus_info', ctypes.c_char * 32), + ('version', ctypes.c_uint32), + ('capabilities', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +# +# Values for 'capabilities' field +# + +V4L2_CAP_VIDEO_CAPTURE = 0x00000001 +V4L2_CAP_VIDEO_OUTPUT = 0x00000002 +V4L2_CAP_VIDEO_OVERLAY = 0x00000004 +V4L2_CAP_VBI_CAPTURE = 0x00000010 +V4L2_CAP_VBI_OUTPUT = 0x00000020 +V4L2_CAP_SLICED_VBI_CAPTURE = 0x00000040 +V4L2_CAP_SLICED_VBI_OUTPUT = 0x00000080 +V4L2_CAP_RDS_CAPTURE = 0x00000100 +V4L2_CAP_VIDEO_OUTPUT_OVERLAY = 0x00000200 +V4L2_CAP_HW_FREQ_SEEK = 0x00000400 +V4L2_CAP_RDS_OUTPUT = 0x00000800 + +V4L2_CAP_TUNER = 0x00010000 +V4L2_CAP_AUDIO = 0x00020000 +V4L2_CAP_RADIO = 0x00040000 +V4L2_CAP_MODULATOR = 0x00080000 + +V4L2_CAP_READWRITE = 0x01000000 +V4L2_CAP_ASYNCIO = 0x02000000 +V4L2_CAP_STREAMING = 0x04000000 + + +# +# Video image format +# + +class v4l2_pix_format(ctypes.Structure): + _fields_ = [ + ('width', ctypes.c_uint32), + ('height', ctypes.c_uint32), + ('pixelformat', ctypes.c_uint32), + ('field', v4l2_field), + ('bytesperline', ctypes.c_uint32), + ('sizeimage', ctypes.c_uint32), + ('colorspace', v4l2_colorspace), + ('priv', ctypes.c_uint32), + ] + +# RGB formats +V4L2_PIX_FMT_RGB332 = v4l2_fourcc('R', 'G', 'B', '1') +V4L2_PIX_FMT_RGB444 = v4l2_fourcc('R', '4', '4', '4') +V4L2_PIX_FMT_RGB555 = v4l2_fourcc('R', 'G', 'B', 'O') +V4L2_PIX_FMT_RGB565 = v4l2_fourcc('R', 'G', 'B', 'P') +V4L2_PIX_FMT_RGB555X = v4l2_fourcc('R', 'G', 'B', 'Q') +V4L2_PIX_FMT_RGB565X = v4l2_fourcc('R', 'G', 'B', 'R') +V4L2_PIX_FMT_BGR24 = v4l2_fourcc('B', 'G', 'R', '3') +V4L2_PIX_FMT_RGB24 = v4l2_fourcc('R', 'G', 'B', '3') +V4L2_PIX_FMT_BGR32 = v4l2_fourcc('B', 'G', 'R', '4') +V4L2_PIX_FMT_RGB32 = v4l2_fourcc('R', 'G', 'B', '4') + +# Grey formats +V4L2_PIX_FMT_GREY = v4l2_fourcc('G', 'R', 'E', 'Y') +V4L2_PIX_FMT_Y10 = v4l2_fourcc('Y', '1', '0', ' ') +V4L2_PIX_FMT_Y16 = v4l2_fourcc('Y', '1', '6', ' ') + +# Palette formats +V4L2_PIX_FMT_PAL8 = v4l2_fourcc('P', 'A', 'L', '8') + +# Luminance+Chrominance formats +V4L2_PIX_FMT_YVU410 = v4l2_fourcc('Y', 'V', 'U', '9') +V4L2_PIX_FMT_YVU420 = v4l2_fourcc('Y', 'V', '1', '2') +V4L2_PIX_FMT_YUYV = v4l2_fourcc('Y', 'U', 'Y', 'V') +V4L2_PIX_FMT_YYUV = v4l2_fourcc('Y', 'Y', 'U', 'V') +V4L2_PIX_FMT_YVYU = v4l2_fourcc('Y', 'V', 'Y', 'U') +V4L2_PIX_FMT_UYVY = v4l2_fourcc('U', 'Y', 'V', 'Y') +V4L2_PIX_FMT_VYUY = v4l2_fourcc('V', 'Y', 'U', 'Y') +V4L2_PIX_FMT_YUV422P = v4l2_fourcc('4', '2', '2', 'P') +V4L2_PIX_FMT_YUV411P = v4l2_fourcc('4', '1', '1', 'P') +V4L2_PIX_FMT_Y41P = v4l2_fourcc('Y', '4', '1', 'P') +V4L2_PIX_FMT_YUV444 = v4l2_fourcc('Y', '4', '4', '4') +V4L2_PIX_FMT_YUV555 = v4l2_fourcc('Y', 'U', 'V', 'O') +V4L2_PIX_FMT_YUV565 = v4l2_fourcc('Y', 'U', 'V', 'P') +V4L2_PIX_FMT_YUV32 = v4l2_fourcc('Y', 'U', 'V', '4') +V4L2_PIX_FMT_YUV410 = v4l2_fourcc('Y', 'U', 'V', '9') +V4L2_PIX_FMT_YUV420 = v4l2_fourcc('Y', 'U', '1', '2') +V4L2_PIX_FMT_HI240 = v4l2_fourcc('H', 'I', '2', '4') +V4L2_PIX_FMT_HM12 = v4l2_fourcc('H', 'M', '1', '2') + +# two planes -- one Y, one Cr + Cb interleaved +V4L2_PIX_FMT_NV12 = v4l2_fourcc('N', 'V', '1', '2') +V4L2_PIX_FMT_NV21 = v4l2_fourcc('N', 'V', '2', '1') +V4L2_PIX_FMT_NV16 = v4l2_fourcc('N', 'V', '1', '6') +V4L2_PIX_FMT_NV61 = v4l2_fourcc('N', 'V', '6', '1') + +# Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm +V4L2_PIX_FMT_SBGGR8 = v4l2_fourcc('B', 'A', '8', '1') +V4L2_PIX_FMT_SGBRG8 = v4l2_fourcc('G', 'B', 'R', 'G') +V4L2_PIX_FMT_SGRBG8 = v4l2_fourcc('G', 'R', 'B', 'G') +V4L2_PIX_FMT_SRGGB8 = v4l2_fourcc('R', 'G', 'G', 'B') +V4L2_PIX_FMT_SBGGR10 = v4l2_fourcc('B', 'G', '1', '0') +V4L2_PIX_FMT_SGBRG10 = v4l2_fourcc('G', 'B', '1', '0') +V4L2_PIX_FMT_SGRBG10 = v4l2_fourcc('B', 'A', '1', '0') +V4L2_PIX_FMT_SRGGB10 = v4l2_fourcc('R', 'G', '1', '0') +V4L2_PIX_FMT_SGRBG10DPCM8 = v4l2_fourcc('B', 'D', '1', '0') +V4L2_PIX_FMT_SBGGR16 = v4l2_fourcc('B', 'Y', 'R', '2') + +# compressed formats +V4L2_PIX_FMT_MJPEG = v4l2_fourcc('M', 'J', 'P', 'G') +V4L2_PIX_FMT_JPEG = v4l2_fourcc('J', 'P', 'E', 'G') +V4L2_PIX_FMT_DV = v4l2_fourcc('d', 'v', 's', 'd') +V4L2_PIX_FMT_MPEG = v4l2_fourcc('M', 'P', 'E', 'G') + +# Vendor-specific formats +V4L2_PIX_FMT_CPIA1 = v4l2_fourcc('C', 'P', 'I', 'A') +V4L2_PIX_FMT_WNVA = v4l2_fourcc('W', 'N', 'V', 'A') +V4L2_PIX_FMT_SN9C10X = v4l2_fourcc('S', '9', '1', '0') +V4L2_PIX_FMT_SN9C20X_I420 = v4l2_fourcc('S', '9', '2', '0') +V4L2_PIX_FMT_PWC1 = v4l2_fourcc('P', 'W', 'C', '1') +V4L2_PIX_FMT_PWC2 = v4l2_fourcc('P', 'W', 'C', '2') +V4L2_PIX_FMT_ET61X251 = v4l2_fourcc('E', '6', '2', '5') +V4L2_PIX_FMT_SPCA501 = v4l2_fourcc('S', '5', '0', '1') +V4L2_PIX_FMT_SPCA505 = v4l2_fourcc('S', '5', '0', '5') +V4L2_PIX_FMT_SPCA508 = v4l2_fourcc('S', '5', '0', '8') +V4L2_PIX_FMT_SPCA561 = v4l2_fourcc('S', '5', '6', '1') +V4L2_PIX_FMT_PAC207 = v4l2_fourcc('P', '2', '0', '7') +V4L2_PIX_FMT_MR97310A = v4l2_fourcc('M', '3', '1', '0') +V4L2_PIX_FMT_SN9C2028 = v4l2_fourcc('S', 'O', 'N', 'X') +V4L2_PIX_FMT_SQ905C = v4l2_fourcc('9', '0', '5', 'C') +V4L2_PIX_FMT_PJPG = v4l2_fourcc('P', 'J', 'P', 'G') +V4L2_PIX_FMT_OV511 = v4l2_fourcc('O', '5', '1', '1') +V4L2_PIX_FMT_OV518 = v4l2_fourcc('O', '5', '1', '8') +V4L2_PIX_FMT_STV0680 = v4l2_fourcc('S', '6', '8', '0') + + +# +# Format enumeration +# + +class v4l2_fmtdesc(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('type', ctypes.c_int), + ('flags', ctypes.c_uint32), + ('description', ctypes.c_char * 32), + ('pixelformat', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + +V4L2_FMT_FLAG_COMPRESSED = 0x0001 +V4L2_FMT_FLAG_EMULATED = 0x0002 + + +# +# Experimental frame size and frame rate enumeration +# + +v4l2_frmsizetypes = enum +( + V4L2_FRMSIZE_TYPE_DISCRETE, + V4L2_FRMSIZE_TYPE_CONTINUOUS, + V4L2_FRMSIZE_TYPE_STEPWISE, +) = range(1, 4) + + +class v4l2_frmsize_discrete(ctypes.Structure): + _fields_ = [ + ('width', ctypes.c_uint32), + ('height', ctypes.c_uint32), + ] + + +class v4l2_frmsize_stepwise(ctypes.Structure): + _fields_ = [ + ('min_width', ctypes.c_uint32), + ('min_height', ctypes.c_uint32), + ('step_width', ctypes.c_uint32), + ('min_height', ctypes.c_uint32), + ('max_height', ctypes.c_uint32), + ('step_height', ctypes.c_uint32), + ] + + +class v4l2_frmsizeenum(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('discrete', v4l2_frmsize_discrete), + ('stepwise', v4l2_frmsize_stepwise), + ] + + _fields_ = [ + ('index', ctypes.c_uint32), + ('pixel_format', ctypes.c_uint32), + ('type', ctypes.c_uint32), + ('_u', _u), + ('reserved', ctypes.c_uint32 * 2) + ] + + _anonymous_ = ('_u',) + + +# +# Frame rate enumeration +# + +v4l2_frmivaltypes = enum +( + V4L2_FRMIVAL_TYPE_DISCRETE, + V4L2_FRMIVAL_TYPE_CONTINUOUS, + V4L2_FRMIVAL_TYPE_STEPWISE, +) = range(1, 4) + + +class v4l2_frmival_stepwise(ctypes.Structure): + _fields_ = [ + ('min', v4l2_fract), + ('max', v4l2_fract), + ('step', v4l2_fract), + ] + + +class v4l2_frmivalenum(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('discrete', v4l2_fract), + ('stepwise', v4l2_frmival_stepwise), + ] + + _fields_ = [ + ('index', ctypes.c_uint32), + ('pixel_format', ctypes.c_uint32), + ('width', ctypes.c_uint32), + ('height', ctypes.c_uint32), + ('type', ctypes.c_uint32), + ('_u', _u), + ('reserved', ctypes.c_uint32 * 2), + ] + + _anonymous_ = ('_u',) + + +# +# Timecode +# + +class v4l2_timecode(ctypes.Structure): + _fields_ = [ + ('type', ctypes.c_uint32), + ('flags', ctypes.c_uint32), + ('frames', ctypes.c_uint8), + ('seconds', ctypes.c_uint8), + ('minutes', ctypes.c_uint8), + ('hours', ctypes.c_uint8), + ('userbits', ctypes.c_uint8 * 4), + ] + + +V4L2_TC_TYPE_24FPS = 1 +V4L2_TC_TYPE_25FPS = 2 +V4L2_TC_TYPE_30FPS = 3 +V4L2_TC_TYPE_50FPS = 4 +V4L2_TC_TYPE_60FPS = 5 + +V4L2_TC_FLAG_DROPFRAME = 0x0001 +V4L2_TC_FLAG_COLORFRAME = 0x0002 +V4L2_TC_USERBITS_field = 0x000C +V4L2_TC_USERBITS_USERDEFINED = 0x0000 +V4L2_TC_USERBITS_8BITCHARS = 0x0008 + + +class v4l2_jpegcompression(ctypes.Structure): + _fields_ = [ + ('quality', ctypes.c_int), + ('APPn', ctypes.c_int), + ('APP_len', ctypes.c_int), + ('APP_data', ctypes.c_char * 60), + ('COM_len', ctypes.c_int), + ('COM_data', ctypes.c_char * 60), + ('jpeg_markers', ctypes.c_uint32), + ] + + +V4L2_JPEG_MARKER_DHT = 1 << 3 +V4L2_JPEG_MARKER_DQT = 1 << 4 +V4L2_JPEG_MARKER_DRI = 1 << 5 +V4L2_JPEG_MARKER_COM = 1 << 6 +V4L2_JPEG_MARKER_APP = 1 << 7 + + +# +# Memory-mapping buffers +# + +class v4l2_requestbuffers(ctypes.Structure): + _fields_ = [ + ('count', ctypes.c_uint32), + ('type', v4l2_buf_type), + ('memory', v4l2_memory), + ('reserved', ctypes.c_uint32 * 2), + ] + + +class v4l2_buffer(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('offset', ctypes.c_uint32), + ('userptr', ctypes.c_ulong), + ] + + _fields_ = [ + ('index', ctypes.c_uint32), + ('type', v4l2_buf_type), + ('bytesused', ctypes.c_uint32), + ('flags', ctypes.c_uint32), + ('field', v4l2_field), + ('timestamp', timeval), + ('timecode', v4l2_timecode), + ('sequence', ctypes.c_uint32), + ('memory', v4l2_memory), + ('m', _u), + ('length', ctypes.c_uint32), + ('input', ctypes.c_uint32), + ('reserved', ctypes.c_uint32), + ] + + +V4L2_BUF_FLAG_MAPPED = 0x0001 +V4L2_BUF_FLAG_QUEUED = 0x0002 +V4L2_BUF_FLAG_DONE = 0x0004 +V4L2_BUF_FLAG_KEYFRAME = 0x0008 +V4L2_BUF_FLAG_PFRAME = 0x0010 +V4L2_BUF_FLAG_BFRAME = 0x0020 +V4L2_BUF_FLAG_TIMECODE = 0x0100 +V4L2_BUF_FLAG_INPUT = 0x0200 + + +# +# Overlay preview +# + +class v4l2_framebuffer(ctypes.Structure): + _fields_ = [ + ('capability', ctypes.c_uint32), + ('flags', ctypes.c_uint32), + ('base', ctypes.c_void_p), + ('fmt', v4l2_pix_format), + ] + +V4L2_FBUF_CAP_EXTERNOVERLAY = 0x0001 +V4L2_FBUF_CAP_CHROMAKEY = 0x0002 +V4L2_FBUF_CAP_LIST_CLIPPING = 0x0004 +V4L2_FBUF_CAP_BITMAP_CLIPPING = 0x0008 +V4L2_FBUF_CAP_LOCAL_ALPHA = 0x0010 +V4L2_FBUF_CAP_GLOBAL_ALPHA = 0x0020 +V4L2_FBUF_CAP_LOCAL_INV_ALPHA = 0x0040 +V4L2_FBUF_CAP_SRC_CHROMAKEY = 0x0080 + +V4L2_FBUF_FLAG_PRIMARY = 0x0001 +V4L2_FBUF_FLAG_OVERLAY = 0x0002 +V4L2_FBUF_FLAG_CHROMAKEY = 0x0004 +V4L2_FBUF_FLAG_LOCAL_ALPHA = 0x0008 +V4L2_FBUF_FLAG_GLOBAL_ALPHA = 0x0010 +V4L2_FBUF_FLAG_LOCAL_INV_ALPHA = 0x0020 +V4L2_FBUF_FLAG_SRC_CHROMAKEY = 0x0040 + + +class v4l2_clip(ctypes.Structure): + pass +v4l2_clip._fields_ = [ + ('c', v4l2_rect), + ('next', ctypes.POINTER(v4l2_clip)), +] + + +class v4l2_window(ctypes.Structure): + _fields_ = [ + ('w', v4l2_rect), + ('field', v4l2_field), + ('chromakey', ctypes.c_uint32), + ('clips', ctypes.POINTER(v4l2_clip)), + ('clipcount', ctypes.c_uint32), + ('bitmap', ctypes.c_void_p), + ('global_alpha', ctypes.c_uint8), + ] + + +# +# Capture parameters +# + +class v4l2_captureparm(ctypes.Structure): + _fields_ = [ + ('capability', ctypes.c_uint32), + ('capturemode', ctypes.c_uint32), + ('timeperframe', v4l2_fract), + ('extendedmode', ctypes.c_uint32), + ('readbuffers', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +V4L2_MODE_HIGHQUALITY = 0x0001 +V4L2_CAP_TIMEPERFRAME = 0x1000 + + +class v4l2_outputparm(ctypes.Structure): + _fields_ = [ + ('capability', ctypes.c_uint32), + ('outputmode', ctypes.c_uint32), + ('timeperframe', v4l2_fract), + ('extendedmode', ctypes.c_uint32), + ('writebuffers', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +# +# Input image cropping +# + +class v4l2_cropcap(ctypes.Structure): + _fields_ = [ + ('type', v4l2_buf_type), + ('bounds', v4l2_rect), + ('defrect', v4l2_rect), + ('pixelaspect', v4l2_fract), + ] + + +class v4l2_crop(ctypes.Structure): + _fields_ = [ + ('type', ctypes.c_int), + ('c', v4l2_rect), + ] + + +# +# Analog video standard +# + +v4l2_std_id = ctypes.c_uint64 + + +V4L2_STD_PAL_B = 0x00000001 +V4L2_STD_PAL_B1 = 0x00000002 +V4L2_STD_PAL_G = 0x00000004 +V4L2_STD_PAL_H = 0x00000008 +V4L2_STD_PAL_I = 0x00000010 +V4L2_STD_PAL_D = 0x00000020 +V4L2_STD_PAL_D1 = 0x00000040 +V4L2_STD_PAL_K = 0x00000080 + +V4L2_STD_PAL_M = 0x00000100 +V4L2_STD_PAL_N = 0x00000200 +V4L2_STD_PAL_Nc = 0x00000400 +V4L2_STD_PAL_60 = 0x00000800 + +V4L2_STD_NTSC_M = 0x00001000 +V4L2_STD_NTSC_M_JP = 0x00002000 +V4L2_STD_NTSC_443 = 0x00004000 +V4L2_STD_NTSC_M_KR = 0x00008000 + +V4L2_STD_SECAM_B = 0x00010000 +V4L2_STD_SECAM_D = 0x00020000 +V4L2_STD_SECAM_G = 0x00040000 +V4L2_STD_SECAM_H = 0x00080000 +V4L2_STD_SECAM_K = 0x00100000 +V4L2_STD_SECAM_K1 = 0x00200000 +V4L2_STD_SECAM_L = 0x00400000 +V4L2_STD_SECAM_LC = 0x00800000 + +V4L2_STD_ATSC_8_VSB = 0x01000000 +V4L2_STD_ATSC_16_VSB = 0x02000000 + + +# some common needed stuff +V4L2_STD_PAL_BG = (V4L2_STD_PAL_B | V4L2_STD_PAL_B1 | V4L2_STD_PAL_G) +V4L2_STD_PAL_DK = (V4L2_STD_PAL_D | V4L2_STD_PAL_D1 | V4L2_STD_PAL_K) +V4L2_STD_PAL = (V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_H | V4L2_STD_PAL_I) +V4L2_STD_NTSC = (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR) +V4L2_STD_SECAM_DK = (V4L2_STD_SECAM_D | V4L2_STD_SECAM_K | V4L2_STD_SECAM_K1) +V4L2_STD_SECAM = (V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H | V4L2_STD_SECAM_DK | V4L2_STD_SECAM_L | V4L2_STD_SECAM_LC) + +V4L2_STD_525_60 = (V4L2_STD_PAL_M | V4L2_STD_PAL_60 | V4L2_STD_NTSC | V4L2_STD_NTSC_443) +V4L2_STD_625_50 = (V4L2_STD_PAL | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | V4L2_STD_SECAM) +V4L2_STD_ATSC = (V4L2_STD_ATSC_8_VSB | V4L2_STD_ATSC_16_VSB) + +V4L2_STD_UNKNOWN = 0 +V4L2_STD_ALL = (V4L2_STD_525_60 | V4L2_STD_625_50) + +# some merged standards +V4L2_STD_MN = (V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | V4L2_STD_NTSC) +V4L2_STD_B = (V4L2_STD_PAL_B | V4L2_STD_PAL_B1 | V4L2_STD_SECAM_B) +V4L2_STD_GH = (V4L2_STD_PAL_G | V4L2_STD_PAL_H|V4L2_STD_SECAM_G | V4L2_STD_SECAM_H) +V4L2_STD_DK = (V4L2_STD_PAL_DK | V4L2_STD_SECAM_DK) + + +class v4l2_standard(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('id', v4l2_std_id), + ('name', ctypes.c_char * 24), + ('frameperiod', v4l2_fract), + ('framelines', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +# +# Video timings dv preset +# + +class v4l2_dv_preset(ctypes.Structure): + _fields_ = [ + ('preset', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4) + ] + + +# +# DV preset enumeration +# + +class v4l2_dv_enum_preset(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('preset', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('width', ctypes.c_uint32), + ('height', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + +# +# DV preset values +# + +V4L2_DV_INVALID = 0 +V4L2_DV_480P59_94 = 1 +V4L2_DV_576P50 = 2 +V4L2_DV_720P24 = 3 +V4L2_DV_720P25 = 4 +V4L2_DV_720P30 = 5 +V4L2_DV_720P50 = 6 +V4L2_DV_720P59_94 = 7 +V4L2_DV_720P60 = 8 +V4L2_DV_1080I29_97 = 9 +V4L2_DV_1080I30 = 10 +V4L2_DV_1080I25 = 11 +V4L2_DV_1080I50 = 12 +V4L2_DV_1080I60 = 13 +V4L2_DV_1080P24 = 14 +V4L2_DV_1080P25 = 15 +V4L2_DV_1080P30 = 16 +V4L2_DV_1080P50 = 17 +V4L2_DV_1080P60 = 18 + + +# +# DV BT timings +# + +class v4l2_bt_timings(ctypes.Structure): + _fields_ = [ + ('width', ctypes.c_uint32), + ('height', ctypes.c_uint32), + ('interlaced', ctypes.c_uint32), + ('polarities', ctypes.c_uint32), + ('pixelclock', ctypes.c_uint64), + ('hfrontporch', ctypes.c_uint32), + ('hsync', ctypes.c_uint32), + ('hbackporch', ctypes.c_uint32), + ('vfrontporch', ctypes.c_uint32), + ('vsync', ctypes.c_uint32), + ('vbackporch', ctypes.c_uint32), + ('il_vfrontporch', ctypes.c_uint32), + ('il_vsync', ctypes.c_uint32), + ('il_vbackporch', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 16), + ] + + _pack_ = True + +# Interlaced or progressive format +V4L2_DV_PROGRESSIVE = 0 +V4L2_DV_INTERLACED = 1 + +# Polarities. If bit is not set, it is assumed to be negative polarity +V4L2_DV_VSYNC_POS_POL = 0x00000001 +V4L2_DV_HSYNC_POS_POL = 0x00000002 + + +class v4l2_dv_timings(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('bt', v4l2_bt_timings), + ('reserved', ctypes.c_uint32 * 32), + ] + + _fields_ = [ + ('type', ctypes.c_uint32), + ('_u', _u), + ] + + _anonymous_ = ('_u',) + _pack_ = True + + +# Values for the type field +V4L2_DV_BT_656_1120 = 0 + + +# +# Video inputs +# + +class v4l2_input(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('type', ctypes.c_uint32), + ('audioset', ctypes.c_uint32), + ('tuner', ctypes.c_uint32), + ('std', v4l2_std_id), + ('status', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +V4L2_INPUT_TYPE_TUNER = 1 +V4L2_INPUT_TYPE_CAMERA = 2 + +V4L2_IN_ST_NO_POWER = 0x00000001 +V4L2_IN_ST_NO_SIGNAL = 0x00000002 +V4L2_IN_ST_NO_COLOR = 0x00000004 + +V4L2_IN_ST_HFLIP = 0x00000010 +V4L2_IN_ST_VFLIP = 0x00000020 + +V4L2_IN_ST_NO_H_LOCK = 0x00000100 +V4L2_IN_ST_COLOR_KILL = 0x00000200 + +V4L2_IN_ST_NO_SYNC = 0x00010000 +V4L2_IN_ST_NO_EQU = 0x00020000 +V4L2_IN_ST_NO_CARRIER = 0x00040000 + +V4L2_IN_ST_MACROVISION = 0x01000000 +V4L2_IN_ST_NO_ACCESS = 0x02000000 +V4L2_IN_ST_VTR = 0x04000000 + +V4L2_IN_CAP_PRESETS = 0x00000001 +V4L2_IN_CAP_CUSTOM_TIMINGS = 0x00000002 +V4L2_IN_CAP_STD = 0x00000004 + +# +# Video outputs +# + +class v4l2_output(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('type', ctypes.c_uint32), + ('audioset', ctypes.c_uint32), + ('modulator', ctypes.c_uint32), + ('std', v4l2_std_id), + ('reserved', ctypes.c_uint32 * 4), + ] + + +V4L2_OUTPUT_TYPE_MODULATOR = 1 +V4L2_OUTPUT_TYPE_ANALOG = 2 +V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY = 3 + +V4L2_OUT_CAP_PRESETS = 0x00000001 +V4L2_OUT_CAP_CUSTOM_TIMINGS = 0x00000002 +V4L2_OUT_CAP_STD = 0x00000004 + +# +# Controls +# + +class v4l2_control(ctypes.Structure): + _fields_ = [ + ('id', ctypes.c_uint32), + ('value', ctypes.c_int32), + ] + + +class v4l2_ext_control(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('value', ctypes.c_int32), + ('value64', ctypes.c_int64), + ('reserved', ctypes.c_void_p), + ] + + _fields_ = [ + ('id', ctypes.c_uint32), + ('reserved2', ctypes.c_uint32 * 2), + ('_u', _u) + ] + + _anonymous_ = ('_u',) + _pack_ = True + + +class v4l2_ext_controls(ctypes.Structure): + _fields_ = [ + ('ctrl_class', ctypes.c_uint32), + ('count', ctypes.c_uint32), + ('error_idx', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ('controls', ctypes.POINTER(v4l2_ext_control)), + ] + + +V4L2_CTRL_CLASS_USER = 0x00980000 +V4L2_CTRL_CLASS_MPEG = 0x00990000 +V4L2_CTRL_CLASS_CAMERA = 0x009a0000 +V4L2_CTRL_CLASS_FM_TX = 0x009b0000 + + +def V4L2_CTRL_ID_MASK(): + return 0x0fffffff + + +def V4L2_CTRL_ID2CLASS(id_): + return id_ & 0x0fff0000 # unsigned long + + +def V4L2_CTRL_DRIVER_PRIV(id_): + return (id_ & 0xffff) >= 0x1000 + + +class v4l2_queryctrl(ctypes.Structure): + _fields_ = [ + ('id', ctypes.c_uint32), + ('type', v4l2_ctrl_type), + ('name', ctypes.c_char * 32), + ('minimum', ctypes.c_int32), + ('maximum', ctypes.c_int32), + ('step', ctypes.c_int32), + ('default', ctypes.c_int32), + ('flags', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ] + + +class v4l2_querymenu(ctypes.Structure): + _fields_ = [ + ('id', ctypes.c_uint32), + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('reserved', ctypes.c_uint32), + ] + + +V4L2_CTRL_FLAG_DISABLED = 0x0001 +V4L2_CTRL_FLAG_GRABBED = 0x0002 +V4L2_CTRL_FLAG_READ_ONLY = 0x0004 +V4L2_CTRL_FLAG_UPDATE = 0x0008 +V4L2_CTRL_FLAG_INACTIVE = 0x0010 +V4L2_CTRL_FLAG_SLIDER = 0x0020 +V4L2_CTRL_FLAG_WRITE_ONLY = 0x0040 + +V4L2_CTRL_FLAG_NEXT_CTRL = 0x80000000 + +V4L2_CID_BASE = V4L2_CTRL_CLASS_USER | 0x900 +V4L2_CID_USER_BASE = V4L2_CID_BASE +V4L2_CID_PRIVATE_BASE = 0x08000000 + +V4L2_CID_USER_CLASS = V4L2_CTRL_CLASS_USER | 1 +V4L2_CID_BRIGHTNESS = V4L2_CID_BASE + 0 +V4L2_CID_CONTRAST = V4L2_CID_BASE + 1 +V4L2_CID_SATURATION = V4L2_CID_BASE + 2 +V4L2_CID_HUE = V4L2_CID_BASE + 3 +V4L2_CID_AUDIO_VOLUME = V4L2_CID_BASE + 5 +V4L2_CID_AUDIO_BALANCE = V4L2_CID_BASE + 6 +V4L2_CID_AUDIO_BASS = V4L2_CID_BASE + 7 +V4L2_CID_AUDIO_TREBLE = V4L2_CID_BASE + 8 +V4L2_CID_AUDIO_MUTE = V4L2_CID_BASE + 9 +V4L2_CID_AUDIO_LOUDNESS = V4L2_CID_BASE + 10 +V4L2_CID_BLACK_LEVEL = V4L2_CID_BASE + 11 # Deprecated +V4L2_CID_AUTO_WHITE_BALANCE = V4L2_CID_BASE + 12 +V4L2_CID_DO_WHITE_BALANCE = V4L2_CID_BASE + 13 +V4L2_CID_RED_BALANCE = V4L2_CID_BASE + 14 +V4L2_CID_BLUE_BALANCE = V4L2_CID_BASE + 15 +V4L2_CID_GAMMA = V4L2_CID_BASE + 16 +V4L2_CID_WHITENESS = V4L2_CID_GAMMA # Deprecated +V4L2_CID_EXPOSURE = V4L2_CID_BASE + 17 +V4L2_CID_AUTOGAIN = V4L2_CID_BASE + 18 +V4L2_CID_GAIN = V4L2_CID_BASE + 19 +V4L2_CID_HFLIP = V4L2_CID_BASE + 20 +V4L2_CID_VFLIP = V4L2_CID_BASE + 21 + +# Deprecated; use V4L2_CID_PAN_RESET and V4L2_CID_TILT_RESET +V4L2_CID_HCENTER = V4L2_CID_BASE + 22 +V4L2_CID_VCENTER = V4L2_CID_BASE + 23 + +V4L2_CID_POWER_LINE_FREQUENCY = V4L2_CID_BASE + 24 + +v4l2_power_line_frequency = enum +( + V4L2_CID_POWER_LINE_FREQUENCY_DISABLED, + V4L2_CID_POWER_LINE_FREQUENCY_50HZ, + V4L2_CID_POWER_LINE_FREQUENCY_60HZ, +) = range(3) + +V4L2_CID_HUE_AUTO = V4L2_CID_BASE + 25 +V4L2_CID_WHITE_BALANCE_TEMPERATURE = V4L2_CID_BASE + 26 +V4L2_CID_SHARPNESS = V4L2_CID_BASE + 27 +V4L2_CID_BACKLIGHT_COMPENSATION = V4L2_CID_BASE + 28 +V4L2_CID_CHROMA_AGC = V4L2_CID_BASE + 29 +V4L2_CID_COLOR_KILLER = V4L2_CID_BASE + 30 +V4L2_CID_COLORFX = V4L2_CID_BASE + 31 + +v4l2_colorfx = enum +( + V4L2_COLORFX_NONE, + V4L2_COLORFX_BW, + V4L2_COLORFX_SEPIA, +) = range(3) + +V4L2_CID_AUTOBRIGHTNESS = V4L2_CID_BASE + 32 +V4L2_CID_BAND_STOP_FILTER = V4L2_CID_BASE + 33 + +V4L2_CID_ROTATE = V4L2_CID_BASE + 34 +V4L2_CID_BG_COLOR = V4L2_CID_BASE + 35 +V4L2_CID_LASTP1 = V4L2_CID_BASE + 36 + +V4L2_CID_MPEG_BASE = V4L2_CTRL_CLASS_MPEG | 0x900 +V4L2_CID_MPEG_CLASS = V4L2_CTRL_CLASS_MPEG | 1 + +# MPEG streams +V4L2_CID_MPEG_STREAM_TYPE = V4L2_CID_MPEG_BASE + 0 + +v4l2_mpeg_stream_type = enum +( + V4L2_MPEG_STREAM_TYPE_MPEG2_PS, + V4L2_MPEG_STREAM_TYPE_MPEG2_TS, + V4L2_MPEG_STREAM_TYPE_MPEG1_SS, + V4L2_MPEG_STREAM_TYPE_MPEG2_DVD, + V4L2_MPEG_STREAM_TYPE_MPEG1_VCD, + V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD, +) = range(6) + +V4L2_CID_MPEG_STREAM_PID_PMT = V4L2_CID_MPEG_BASE + 1 +V4L2_CID_MPEG_STREAM_PID_AUDIO = V4L2_CID_MPEG_BASE + 2 +V4L2_CID_MPEG_STREAM_PID_VIDEO = V4L2_CID_MPEG_BASE + 3 +V4L2_CID_MPEG_STREAM_PID_PCR = V4L2_CID_MPEG_BASE + 4 +V4L2_CID_MPEG_STREAM_PES_ID_AUDIO = V4L2_CID_MPEG_BASE + 5 +V4L2_CID_MPEG_STREAM_PES_ID_VIDEO = V4L2_CID_MPEG_BASE + 6 +V4L2_CID_MPEG_STREAM_VBI_FMT = V4L2_CID_MPEG_BASE + 7 + +v4l2_mpeg_stream_vbi_fmt = enum +( + V4L2_MPEG_STREAM_VBI_FMT_NONE, + V4L2_MPEG_STREAM_VBI_FMT_IVTV, +) = range(2) + +V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ = V4L2_CID_MPEG_BASE + 100 + +v4l2_mpeg_audio_sampling_freq = enum +( + V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100, + V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000, + V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000, +) = range(3) + +V4L2_CID_MPEG_AUDIO_ENCODING = V4L2_CID_MPEG_BASE + 101 + +v4l2_mpeg_audio_encoding = enum +( + V4L2_MPEG_AUDIO_ENCODING_LAYER_1, + V4L2_MPEG_AUDIO_ENCODING_LAYER_2, + V4L2_MPEG_AUDIO_ENCODING_LAYER_3, + V4L2_MPEG_AUDIO_ENCODING_AAC, + V4L2_MPEG_AUDIO_ENCODING_AC3, +) = range(5) + +V4L2_CID_MPEG_AUDIO_L1_BITRATE = V4L2_CID_MPEG_BASE + 102 + +v4l2_mpeg_audio_l1_bitrate = enum +( + V4L2_MPEG_AUDIO_L1_BITRATE_32K, + V4L2_MPEG_AUDIO_L1_BITRATE_64K, + V4L2_MPEG_AUDIO_L1_BITRATE_96K, + V4L2_MPEG_AUDIO_L1_BITRATE_128K, + V4L2_MPEG_AUDIO_L1_BITRATE_160K, + V4L2_MPEG_AUDIO_L1_BITRATE_192K, + V4L2_MPEG_AUDIO_L1_BITRATE_224K, + V4L2_MPEG_AUDIO_L1_BITRATE_256K, + V4L2_MPEG_AUDIO_L1_BITRATE_288K, + V4L2_MPEG_AUDIO_L1_BITRATE_320K, + V4L2_MPEG_AUDIO_L1_BITRATE_352K, + V4L2_MPEG_AUDIO_L1_BITRATE_384K, + V4L2_MPEG_AUDIO_L1_BITRATE_416K, + V4L2_MPEG_AUDIO_L1_BITRATE_448K, +) = range(14) + +V4L2_CID_MPEG_AUDIO_L2_BITRATE = V4L2_CID_MPEG_BASE + 103 + +v4l2_mpeg_audio_l2_bitrate = enum +( + V4L2_MPEG_AUDIO_L2_BITRATE_32K, + V4L2_MPEG_AUDIO_L2_BITRATE_48K, + V4L2_MPEG_AUDIO_L2_BITRATE_56K, + V4L2_MPEG_AUDIO_L2_BITRATE_64K, + V4L2_MPEG_AUDIO_L2_BITRATE_80K, + V4L2_MPEG_AUDIO_L2_BITRATE_96K, + V4L2_MPEG_AUDIO_L2_BITRATE_112K, + V4L2_MPEG_AUDIO_L2_BITRATE_128K, + V4L2_MPEG_AUDIO_L2_BITRATE_160K, + V4L2_MPEG_AUDIO_L2_BITRATE_192K, + V4L2_MPEG_AUDIO_L2_BITRATE_224K, + V4L2_MPEG_AUDIO_L2_BITRATE_256K, + V4L2_MPEG_AUDIO_L2_BITRATE_320K, + V4L2_MPEG_AUDIO_L2_BITRATE_384K, +) = range(14) + +V4L2_CID_MPEG_AUDIO_L3_BITRATE = V4L2_CID_MPEG_BASE + 104 + +v4l2_mpeg_audio_l3_bitrate = enum +( + V4L2_MPEG_AUDIO_L3_BITRATE_32K, + V4L2_MPEG_AUDIO_L3_BITRATE_40K, + V4L2_MPEG_AUDIO_L3_BITRATE_48K, + V4L2_MPEG_AUDIO_L3_BITRATE_56K, + V4L2_MPEG_AUDIO_L3_BITRATE_64K, + V4L2_MPEG_AUDIO_L3_BITRATE_80K, + V4L2_MPEG_AUDIO_L3_BITRATE_96K, + V4L2_MPEG_AUDIO_L3_BITRATE_112K, + V4L2_MPEG_AUDIO_L3_BITRATE_128K, + V4L2_MPEG_AUDIO_L3_BITRATE_160K, + V4L2_MPEG_AUDIO_L3_BITRATE_192K, + V4L2_MPEG_AUDIO_L3_BITRATE_224K, + V4L2_MPEG_AUDIO_L3_BITRATE_256K, + V4L2_MPEG_AUDIO_L3_BITRATE_320K, +) = range(14) + +V4L2_CID_MPEG_AUDIO_MODE = V4L2_CID_MPEG_BASE + 105 + +v4l2_mpeg_audio_mode = enum +( + V4L2_MPEG_AUDIO_MODE_STEREO, + V4L2_MPEG_AUDIO_MODE_JOINT_STEREO, + V4L2_MPEG_AUDIO_MODE_DUAL, + V4L2_MPEG_AUDIO_MODE_MONO, +) = range(4) + +V4L2_CID_MPEG_AUDIO_MODE_EXTENSION = V4L2_CID_MPEG_BASE + 106 + +v4l2_mpeg_audio_mode_extension = enum +( + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4, + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_8, + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_12, + V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16, +) = range(4) + +V4L2_CID_MPEG_AUDIO_EMPHASIS = V4L2_CID_MPEG_BASE + 107 + +v4l2_mpeg_audio_emphasis = enum +( + V4L2_MPEG_AUDIO_EMPHASIS_NONE, + V4L2_MPEG_AUDIO_EMPHASIS_50_DIV_15_uS, + V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17, +) = range(3) + +V4L2_CID_MPEG_AUDIO_CRC = V4L2_CID_MPEG_BASE + 108 + +v4l2_mpeg_audio_crc = enum +( + V4L2_MPEG_AUDIO_CRC_NONE, + V4L2_MPEG_AUDIO_CRC_CRC16, +) = range(2) + +V4L2_CID_MPEG_AUDIO_MUTE = V4L2_CID_MPEG_BASE + 109 +V4L2_CID_MPEG_AUDIO_AAC_BITRATE = V4L2_CID_MPEG_BASE + 110 +V4L2_CID_MPEG_AUDIO_AC3_BITRATE = V4L2_CID_MPEG_BASE + 111 + +v4l2_mpeg_audio_ac3_bitrate = enum +( + V4L2_MPEG_AUDIO_AC3_BITRATE_32K, + V4L2_MPEG_AUDIO_AC3_BITRATE_40K, + V4L2_MPEG_AUDIO_AC3_BITRATE_48K, + V4L2_MPEG_AUDIO_AC3_BITRATE_56K, + V4L2_MPEG_AUDIO_AC3_BITRATE_64K, + V4L2_MPEG_AUDIO_AC3_BITRATE_80K, + V4L2_MPEG_AUDIO_AC3_BITRATE_96K, + V4L2_MPEG_AUDIO_AC3_BITRATE_112K, + V4L2_MPEG_AUDIO_AC3_BITRATE_128K, + V4L2_MPEG_AUDIO_AC3_BITRATE_160K, + V4L2_MPEG_AUDIO_AC3_BITRATE_192K, + V4L2_MPEG_AUDIO_AC3_BITRATE_224K, + V4L2_MPEG_AUDIO_AC3_BITRATE_256K, + V4L2_MPEG_AUDIO_AC3_BITRATE_320K, + V4L2_MPEG_AUDIO_AC3_BITRATE_384K, + V4L2_MPEG_AUDIO_AC3_BITRATE_448K, + V4L2_MPEG_AUDIO_AC3_BITRATE_512K, + V4L2_MPEG_AUDIO_AC3_BITRATE_576K, + V4L2_MPEG_AUDIO_AC3_BITRATE_640K, +) = range(19) + +V4L2_CID_MPEG_VIDEO_ENCODING = V4L2_CID_MPEG_BASE + 200 + +v4l2_mpeg_video_encoding = enum +( + V4L2_MPEG_VIDEO_ENCODING_MPEG_1, + V4L2_MPEG_VIDEO_ENCODING_MPEG_2, + V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC, +) = range(3) + +V4L2_CID_MPEG_VIDEO_ASPECT = V4L2_CID_MPEG_BASE + 201 + +v4l2_mpeg_video_aspect = enum +( + V4L2_MPEG_VIDEO_ASPECT_1x1, + V4L2_MPEG_VIDEO_ASPECT_4x3, + V4L2_MPEG_VIDEO_ASPECT_16x9, + V4L2_MPEG_VIDEO_ASPECT_221x100, +) = range(4) + +V4L2_CID_MPEG_VIDEO_B_FRAMES = V4L2_CID_MPEG_BASE + 202 +V4L2_CID_MPEG_VIDEO_GOP_SIZE = V4L2_CID_MPEG_BASE + 203 +V4L2_CID_MPEG_VIDEO_GOP_CLOSURE = V4L2_CID_MPEG_BASE + 204 +V4L2_CID_MPEG_VIDEO_PULLDOWN = V4L2_CID_MPEG_BASE + 205 +V4L2_CID_MPEG_VIDEO_BITRATE_MODE = V4L2_CID_MPEG_BASE + 206 + +v4l2_mpeg_video_bitrate_mode = enum +( + V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, + V4L2_MPEG_VIDEO_BITRATE_MODE_CBR, +) = range(2) + +V4L2_CID_MPEG_VIDEO_BITRATE = V4L2_CID_MPEG_BASE + 207 +V4L2_CID_MPEG_VIDEO_BITRATE_PEAK = V4L2_CID_MPEG_BASE + 208 +V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION = V4L2_CID_MPEG_BASE + 209 +V4L2_CID_MPEG_VIDEO_MUTE = V4L2_CID_MPEG_BASE + 210 +V4L2_CID_MPEG_VIDEO_MUTE_YUV = V4L2_CID_MPEG_BASE + 211 + +V4L2_CID_MPEG_CX2341X_BASE = V4L2_CTRL_CLASS_MPEG | 0x1000 +V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE = V4L2_CID_MPEG_CX2341X_BASE + 0 + +v4l2_mpeg_cx2341x_video_spatial_filter_mode = enum +( + V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL, + V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO, +) = range(2) + +V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER = V4L2_CID_MPEG_CX2341X_BASE + 1 +V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE = V4L2_CID_MPEG_CX2341X_BASE + 2 + +v4l2_mpeg_cx2341x_video_luma_spatial_filter_type = enum +( + V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_OFF, + V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_HOR, + V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_VERT, + V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_HV_SEPARABLE, + V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_SYM_NON_SEPARABLE, +) = range(5) + +V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE = V4L2_CID_MPEG_CX2341X_BASE + 3 + +v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type = enum +( + V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_OFF, + V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR, +) = range(2) + +V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE = V4L2_CID_MPEG_CX2341X_BASE + 4 + +v4l2_mpeg_cx2341x_video_temporal_filter_mode = enum +( + V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL, + V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_AUTO, +) = range(2) + +V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER = V4L2_CID_MPEG_CX2341X_BASE + 5 +V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE = V4L2_CID_MPEG_CX2341X_BASE + 6 + +v4l2_mpeg_cx2341x_video_median_filter_type = enum +( + V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF, + V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR, + V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_VERT, + V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR_VERT, + V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_DIAG, +) = range(5) + +V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM = V4L2_CID_MPEG_CX2341X_BASE + 7 +V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP = V4L2_CID_MPEG_CX2341X_BASE + 8 +V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM = V4L2_CID_MPEG_CX2341X_BASE + 9 +V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP = V4L2_CID_MPEG_CX2341X_BASE + 10 +V4L2_CID_MPEG_CX2341X_STREAM_INSERT_NAV_PACKETS = V4L2_CID_MPEG_CX2341X_BASE + 11 + +V4L2_CID_CAMERA_CLASS_BASE = V4L2_CTRL_CLASS_CAMERA | 0x900 +V4L2_CID_CAMERA_CLASS = V4L2_CTRL_CLASS_CAMERA | 1 + +V4L2_CID_EXPOSURE_AUTO = V4L2_CID_CAMERA_CLASS_BASE + 1 + +v4l2_exposure_auto_type = enum +( + V4L2_EXPOSURE_AUTO, + V4L2_EXPOSURE_MANUAL, + V4L2_EXPOSURE_SHUTTER_PRIORITY, + V4L2_EXPOSURE_APERTURE_PRIORITY, +) = range(4) + +V4L2_CID_EXPOSURE_ABSOLUTE = V4L2_CID_CAMERA_CLASS_BASE + 2 +V4L2_CID_EXPOSURE_AUTO_PRIORITY = V4L2_CID_CAMERA_CLASS_BASE + 3 + +V4L2_CID_PAN_RELATIVE = V4L2_CID_CAMERA_CLASS_BASE + 4 +V4L2_CID_TILT_RELATIVE = V4L2_CID_CAMERA_CLASS_BASE + 5 +V4L2_CID_PAN_RESET = V4L2_CID_CAMERA_CLASS_BASE + 6 +V4L2_CID_TILT_RESET = V4L2_CID_CAMERA_CLASS_BASE + 7 + +V4L2_CID_PAN_ABSOLUTE = V4L2_CID_CAMERA_CLASS_BASE + 8 +V4L2_CID_TILT_ABSOLUTE = V4L2_CID_CAMERA_CLASS_BASE + 9 + +V4L2_CID_FOCUS_ABSOLUTE = V4L2_CID_CAMERA_CLASS_BASE + 10 +V4L2_CID_FOCUS_RELATIVE = V4L2_CID_CAMERA_CLASS_BASE + 11 +V4L2_CID_FOCUS_AUTO = V4L2_CID_CAMERA_CLASS_BASE + 12 + +V4L2_CID_ZOOM_ABSOLUTE = V4L2_CID_CAMERA_CLASS_BASE + 13 +V4L2_CID_ZOOM_RELATIVE = V4L2_CID_CAMERA_CLASS_BASE + 14 +V4L2_CID_ZOOM_CONTINUOUS = V4L2_CID_CAMERA_CLASS_BASE + 15 + +V4L2_CID_PRIVACY = V4L2_CID_CAMERA_CLASS_BASE + 16 + +V4L2_CID_FM_TX_CLASS_BASE = V4L2_CTRL_CLASS_FM_TX | 0x900 +V4L2_CID_FM_TX_CLASS = V4L2_CTRL_CLASS_FM_TX | 1 + +V4L2_CID_RDS_TX_DEVIATION = V4L2_CID_FM_TX_CLASS_BASE + 1 +V4L2_CID_RDS_TX_PI = V4L2_CID_FM_TX_CLASS_BASE + 2 +V4L2_CID_RDS_TX_PTY = V4L2_CID_FM_TX_CLASS_BASE + 3 +V4L2_CID_RDS_TX_PS_NAME = V4L2_CID_FM_TX_CLASS_BASE + 5 +V4L2_CID_RDS_TX_RADIO_TEXT = V4L2_CID_FM_TX_CLASS_BASE + 6 + +V4L2_CID_AUDIO_LIMITER_ENABLED = V4L2_CID_FM_TX_CLASS_BASE + 64 +V4L2_CID_AUDIO_LIMITER_RELEASE_TIME = V4L2_CID_FM_TX_CLASS_BASE + 65 +V4L2_CID_AUDIO_LIMITER_DEVIATION = V4L2_CID_FM_TX_CLASS_BASE + 66 + +V4L2_CID_AUDIO_COMPRESSION_ENABLED = V4L2_CID_FM_TX_CLASS_BASE + 80 +V4L2_CID_AUDIO_COMPRESSION_GAIN = V4L2_CID_FM_TX_CLASS_BASE + 81 +V4L2_CID_AUDIO_COMPRESSION_THRESHOLD = V4L2_CID_FM_TX_CLASS_BASE + 82 +V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME = V4L2_CID_FM_TX_CLASS_BASE + 83 +V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME = V4L2_CID_FM_TX_CLASS_BASE + 84 + +V4L2_CID_PILOT_TONE_ENABLED = V4L2_CID_FM_TX_CLASS_BASE + 96 +V4L2_CID_PILOT_TONE_DEVIATION = V4L2_CID_FM_TX_CLASS_BASE + 97 +V4L2_CID_PILOT_TONE_FREQUENCY = V4L2_CID_FM_TX_CLASS_BASE + 98 + +V4L2_CID_TUNE_PREEMPHASIS = V4L2_CID_FM_TX_CLASS_BASE + 112 + +v4l2_preemphasis = enum +( + V4L2_PREEMPHASIS_DISABLED, + V4L2_PREEMPHASIS_50_uS, + V4L2_PREEMPHASIS_75_uS, +) = range(3) + +V4L2_CID_TUNE_POWER_LEVEL = V4L2_CID_FM_TX_CLASS_BASE + 113 +V4L2_CID_TUNE_ANTENNA_CAPACITOR = V4L2_CID_FM_TX_CLASS_BASE + 114 + + +# +# Tuning +# + +class v4l2_tuner(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('type', v4l2_tuner_type), + ('capability', ctypes.c_uint32), + ('rangelow', ctypes.c_uint32), + ('rangehigh', ctypes.c_uint32), + ('rxsubchans', ctypes.c_uint32), + ('audmode', ctypes.c_uint32), + ('signal', ctypes.c_int32), + ('afc', ctypes.c_int32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +class v4l2_modulator(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('capability', ctypes.c_uint32), + ('rangelow', ctypes.c_uint32), + ('rangehigh', ctypes.c_uint32), + ('txsubchans', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ] + + +V4L2_TUNER_CAP_LOW = 0x0001 +V4L2_TUNER_CAP_NORM = 0x0002 +V4L2_TUNER_CAP_STEREO = 0x0010 +V4L2_TUNER_CAP_LANG2 = 0x0020 +V4L2_TUNER_CAP_SAP = 0x0020 +V4L2_TUNER_CAP_LANG1 = 0x0040 +V4L2_TUNER_CAP_RDS = 0x0080 + +V4L2_TUNER_SUB_MONO = 0x0001 +V4L2_TUNER_SUB_STEREO = 0x0002 +V4L2_TUNER_SUB_LANG2 = 0x0004 +V4L2_TUNER_SUB_SAP = 0x0004 +V4L2_TUNER_SUB_LANG1 = 0x0008 +V4L2_TUNER_SUB_RDS = 0x0010 + +V4L2_TUNER_MODE_MONO = 0x0000 +V4L2_TUNER_MODE_STEREO = 0x0001 +V4L2_TUNER_MODE_LANG2 = 0x0002 +V4L2_TUNER_MODE_SAP = 0x0002 +V4L2_TUNER_MODE_LANG1 = 0x0003 +V4L2_TUNER_MODE_LANG1_LANG2 = 0x0004 + + +class v4l2_frequency(ctypes.Structure): + _fields_ = [ + ('tuner', ctypes.c_uint32), + ('type', v4l2_tuner_type), + ('frequency', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 8), + ] + + +class v4l2_hw_freq_seek(ctypes.Structure): + _fields_ = [ + ('tuner', ctypes.c_uint32), + ('type', v4l2_tuner_type), + ('seek_upward', ctypes.c_uint32), + ('wrap_around', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 8), + ] + + +# +# RDS +# + +class v4l2_rds_data(ctypes.Structure): + _fields_ = [ + ('lsb', ctypes.c_char), + ('msb', ctypes.c_char), + ('block', ctypes.c_char), + ] + + _pack_ = True + + +V4L2_RDS_BLOCK_MSK = 0x7 +V4L2_RDS_BLOCK_A = 0 +V4L2_RDS_BLOCK_B = 1 +V4L2_RDS_BLOCK_C = 2 +V4L2_RDS_BLOCK_D = 3 +V4L2_RDS_BLOCK_C_ALT = 4 +V4L2_RDS_BLOCK_INVALID = 7 + +V4L2_RDS_BLOCK_CORRECTED = 0x40 +V4L2_RDS_BLOCK_ERROR = 0x80 + + +# +# Audio +# + +class v4l2_audio(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('capability', ctypes.c_uint32), + ('mode', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ] + + +V4L2_AUDCAP_STEREO = 0x00001 +V4L2_AUDCAP_AVL = 0x00002 + +V4L2_AUDMODE_AVL = 0x00001 + + +class v4l2_audioout(ctypes.Structure): + _fields_ = [ + ('index', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ('capability', ctypes.c_uint32), + ('mode', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ] + + +# +# Mpeg services (experimental) +# + +V4L2_ENC_IDX_FRAME_I = 0 +V4L2_ENC_IDX_FRAME_P = 1 +V4L2_ENC_IDX_FRAME_B = 2 +V4L2_ENC_IDX_FRAME_MASK = 0xf + + +class v4l2_enc_idx_entry(ctypes.Structure): + _fields_ = [ + ('offset', ctypes.c_uint64), + ('pts', ctypes.c_uint64), + ('length', ctypes.c_uint32), + ('flags', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ] + + +V4L2_ENC_IDX_ENTRIES = 64 + + +class v4l2_enc_idx(ctypes.Structure): + _fields_ = [ + ('entries', ctypes.c_uint32), + ('entries_cap', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 4), + ('entry', v4l2_enc_idx_entry * V4L2_ENC_IDX_ENTRIES), + ] + + +V4L2_ENC_CMD_START = 0 +V4L2_ENC_CMD_STOP = 1 +V4L2_ENC_CMD_PAUSE = 2 +V4L2_ENC_CMD_RESUME = 3 + +V4L2_ENC_CMD_STOP_AT_GOP_END = 1 << 0 + + +class v4l2_encoder_cmd(ctypes.Structure): + class _u(ctypes.Union): + class _s(ctypes.Structure): + _fields_ = [ + ('data', ctypes.c_uint32 * 8), + ] + + _fields_ = [ + ('raw', _s), + ] + + _fields_ = [ + ('cmd', ctypes.c_uint32), + ('flags', ctypes.c_uint32), + ('_u', _u), + ] + + _anonymous_ = ('_u',) + + +# +# Data services (VBI) +# + +class v4l2_vbi_format(ctypes.Structure): + _fields_ = [ + ('sampling_rate', ctypes.c_uint32), + ('offset', ctypes.c_uint32), + ('samples_per_line', ctypes.c_uint32), + ('sample_format', ctypes.c_uint32), + ('start', ctypes.c_int32 * 2), + ('count', ctypes.c_uint32 * 2), + ('flags', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ] + + +V4L2_VBI_UNSYNC = 1 << 0 +V4L2_VBI_INTERLACED = 1 << 1 + + +class v4l2_sliced_vbi_format(ctypes.Structure): + _fields_ = [ + ('service_set', ctypes.c_uint16), + ('service_lines', ctypes.c_uint16 * 2 * 24), + ('io_size', ctypes.c_uint32), + ('reserved', ctypes.c_uint32 * 2), + ] + + +V4L2_SLICED_TELETEXT_B = 0x0001 +V4L2_SLICED_VPS = 0x0400 +V4L2_SLICED_CAPTION_525 = 0x1000 +V4L2_SLICED_WSS_625 = 0x4000 +V4L2_SLICED_VBI_525 = V4L2_SLICED_CAPTION_525 +V4L2_SLICED_VBI_625 = ( + V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625) + + +class v4l2_sliced_vbi_cap(ctypes.Structure): + _fields_ = [ + ('service_set', ctypes.c_uint16), + ('service_lines', ctypes.c_uint16 * 2 * 24), + ('type', v4l2_buf_type), + ('reserved', ctypes.c_uint32 * 3), + ] + + +class v4l2_sliced_vbi_data(ctypes.Structure): + _fields_ = [ + ('id', ctypes.c_uint32), + ('field', ctypes.c_uint32), + ('line', ctypes.c_uint32), + ('reserved', ctypes.c_uint32), + ('data', ctypes.c_char * 48), + ] + + +# +# Sliced VBI data inserted into MPEG Streams +# + + +V4L2_MPEG_VBI_IVTV_TELETEXT_B = 1 +V4L2_MPEG_VBI_IVTV_CAPTION_525 = 4 +V4L2_MPEG_VBI_IVTV_WSS_625 = 5 +V4L2_MPEG_VBI_IVTV_VPS = 7 + + +class v4l2_mpeg_vbi_itv0_line(ctypes.Structure): + _fields_ = [ + ('id', ctypes.c_char), + ('data', ctypes.c_char * 42), + ] + + _pack_ = True + + +class v4l2_mpeg_vbi_itv0(ctypes.Structure): + _fields_ = [ + ('linemask', ctypes.c_uint32 * 2), # how to define __le32 in ctypes? + ('line', v4l2_mpeg_vbi_itv0_line * 35), + ] + + _pack_ = True + + +class v4l2_mpeg_vbi_ITV0(ctypes.Structure): + _fields_ = [ + ('line', v4l2_mpeg_vbi_itv0_line * 36), + ] + + _pack_ = True + + +V4L2_MPEG_VBI_IVTV_MAGIC0 = "itv0" +V4L2_MPEG_VBI_IVTV_MAGIC1 = "ITV0" + + +class v4l2_mpeg_vbi_fmt_ivtv(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('itv0', v4l2_mpeg_vbi_itv0), + ('ITV0', v4l2_mpeg_vbi_ITV0), + ] + + _fields_ = [ + ('magic', ctypes.c_char * 4), + ('_u', _u) + ] + + _anonymous_ = ('_u',) + _pack_ = True + + +# +# Aggregate structures +# + +class v4l2_format(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('pix', v4l2_pix_format), + ('win', v4l2_window), + ('vbi', v4l2_vbi_format), + ('sliced', v4l2_sliced_vbi_format), + ('raw_data', ctypes.c_char * 200), + ] + + _fields_ = [ + ('type', v4l2_buf_type), + ('fmt', _u), + ] + + +class v4l2_streamparm(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('capture', v4l2_captureparm), + ('output', v4l2_outputparm), + ('raw_data', ctypes.c_char * 200), + ] + + _fields_ = [ + ('type', v4l2_buf_type), + ('parm', _u) + ] + + +# +# Advanced debugging +# + +V4L2_CHIP_MATCH_HOST = 0 +V4L2_CHIP_MATCH_I2C_DRIVER = 1 +V4L2_CHIP_MATCH_I2C_ADDR = 2 +V4L2_CHIP_MATCH_AC97 = 3 + + +class v4l2_dbg_match(ctypes.Structure): + class _u(ctypes.Union): + _fields_ = [ + ('addr', ctypes.c_uint32), + ('name', ctypes.c_char * 32), + ] + + _fields_ = [ + ('type', ctypes.c_uint32), + ('_u', _u), + ] + + _anonymous_ = ('_u',) + _pack_ = True + + +class v4l2_dbg_register(ctypes.Structure): + _fields_ = [ + ('match', v4l2_dbg_match), + ('size', ctypes.c_uint32), + ('reg', ctypes.c_uint64), + ('val', ctypes.c_uint64), + ] + + _pack_ = True + + +class v4l2_dbg_chip_ident(ctypes.Structure): + _fields_ = [ + ('match', v4l2_dbg_match), + ('ident', ctypes.c_uint32), + ('revision', ctypes.c_uint32), + ] + + _pack_ = True + + +# +# ioctl codes for video devices +# + +VIDIOC_QUERYCAP = _IOR('V', 0, v4l2_capability) +VIDIOC_RESERVED = _IO('V', 1) +VIDIOC_ENUM_FMT = _IOWR('V', 2, v4l2_fmtdesc) +VIDIOC_G_FMT = _IOWR('V', 4, v4l2_format) +VIDIOC_S_FMT = _IOWR('V', 5, v4l2_format) +VIDIOC_REQBUFS = _IOWR('V', 8, v4l2_requestbuffers) +VIDIOC_QUERYBUF = _IOWR('V', 9, v4l2_buffer) +VIDIOC_G_FBUF = _IOR('V', 10, v4l2_framebuffer) +VIDIOC_S_FBUF = _IOW('V', 11, v4l2_framebuffer) +VIDIOC_OVERLAY = _IOW('V', 14, ctypes.c_int) +VIDIOC_QBUF = _IOWR('V', 15, v4l2_buffer) +VIDIOC_DQBUF = _IOWR('V', 17, v4l2_buffer) +VIDIOC_STREAMON = _IOW('V', 18, ctypes.c_int) +VIDIOC_STREAMOFF = _IOW('V', 19, ctypes.c_int) +VIDIOC_G_PARM = _IOWR('V', 21, v4l2_streamparm) +VIDIOC_S_PARM = _IOWR('V', 22, v4l2_streamparm) +VIDIOC_G_STD = _IOR('V', 23, v4l2_std_id) +VIDIOC_S_STD = _IOW('V', 24, v4l2_std_id) +VIDIOC_ENUMSTD = _IOWR('V', 25, v4l2_standard) +VIDIOC_ENUMINPUT = _IOWR('V', 26, v4l2_input) +VIDIOC_G_CTRL = _IOWR('V', 27, v4l2_control) +VIDIOC_S_CTRL = _IOWR('V', 28, v4l2_control) +VIDIOC_G_TUNER = _IOWR('V', 29, v4l2_tuner) +VIDIOC_S_TUNER = _IOW('V', 30, v4l2_tuner) +VIDIOC_G_AUDIO = _IOR('V', 33, v4l2_audio) +VIDIOC_S_AUDIO = _IOW('V', 34, v4l2_audio) +VIDIOC_QUERYCTRL = _IOWR('V', 36, v4l2_queryctrl) +VIDIOC_QUERYMENU = _IOWR('V', 37, v4l2_querymenu) +VIDIOC_G_INPUT = _IOR('V', 38, ctypes.c_int) +VIDIOC_S_INPUT = _IOWR('V', 39, ctypes.c_int) +VIDIOC_G_OUTPUT = _IOR('V', 46, ctypes.c_int) +VIDIOC_S_OUTPUT = _IOWR('V', 47, ctypes.c_int) +VIDIOC_ENUMOUTPUT = _IOWR('V', 48, v4l2_output) +VIDIOC_G_AUDOUT = _IOR('V', 49, v4l2_audioout) +VIDIOC_S_AUDOUT = _IOW('V', 50, v4l2_audioout) +VIDIOC_G_MODULATOR = _IOWR('V', 54, v4l2_modulator) +VIDIOC_S_MODULATOR = _IOW('V', 55, v4l2_modulator) +VIDIOC_G_FREQUENCY = _IOWR('V', 56, v4l2_frequency) +VIDIOC_S_FREQUENCY = _IOW('V', 57, v4l2_frequency) +VIDIOC_CROPCAP = _IOWR('V', 58, v4l2_cropcap) +VIDIOC_G_CROP = _IOWR('V', 59, v4l2_crop) +VIDIOC_S_CROP = _IOW('V', 60, v4l2_crop) +VIDIOC_G_JPEGCOMP = _IOR('V', 61, v4l2_jpegcompression) +VIDIOC_S_JPEGCOMP = _IOW('V', 62, v4l2_jpegcompression) +VIDIOC_QUERYSTD = _IOR('V', 63, v4l2_std_id) +VIDIOC_TRY_FMT = _IOWR('V', 64, v4l2_format) +VIDIOC_ENUMAUDIO = _IOWR('V', 65, v4l2_audio) +VIDIOC_ENUMAUDOUT = _IOWR('V', 66, v4l2_audioout) +VIDIOC_G_PRIORITY = _IOR('V', 67, v4l2_priority) +VIDIOC_S_PRIORITY = _IOW('V', 68, v4l2_priority) +VIDIOC_G_SLICED_VBI_CAP = _IOWR('V', 69, v4l2_sliced_vbi_cap) +VIDIOC_LOG_STATUS = _IO('V', 70) +VIDIOC_G_EXT_CTRLS = _IOWR('V', 71, v4l2_ext_controls) +VIDIOC_S_EXT_CTRLS = _IOWR('V', 72, v4l2_ext_controls) +VIDIOC_TRY_EXT_CTRLS = _IOWR('V', 73, v4l2_ext_controls) + +VIDIOC_ENUM_FRAMESIZES = _IOWR('V', 74, v4l2_frmsizeenum) +VIDIOC_ENUM_FRAMEINTERVALS = _IOWR('V', 75, v4l2_frmivalenum) +VIDIOC_G_ENC_INDEX = _IOR('V', 76, v4l2_enc_idx) +VIDIOC_ENCODER_CMD = _IOWR('V', 77, v4l2_encoder_cmd) +VIDIOC_TRY_ENCODER_CMD = _IOWR('V', 78, v4l2_encoder_cmd) + +VIDIOC_DBG_S_REGISTER = _IOW('V', 79, v4l2_dbg_register) +VIDIOC_DBG_G_REGISTER = _IOWR('V', 80, v4l2_dbg_register) + +VIDIOC_DBG_G_CHIP_IDENT = _IOWR('V', 81, v4l2_dbg_chip_ident) + +VIDIOC_S_HW_FREQ_SEEK = _IOW('V', 82, v4l2_hw_freq_seek) +VIDIOC_ENUM_DV_PRESETS = _IOWR('V', 83, v4l2_dv_enum_preset) +VIDIOC_S_DV_PRESET = _IOWR('V', 84, v4l2_dv_preset) +VIDIOC_G_DV_PRESET = _IOWR('V', 85, v4l2_dv_preset) +VIDIOC_QUERY_DV_PRESET = _IOR('V', 86, v4l2_dv_preset) +VIDIOC_S_DV_TIMINGS = _IOWR('V', 87, v4l2_dv_timings) +VIDIOC_G_DV_TIMINGS = _IOWR('V', 88, v4l2_dv_timings) + +VIDIOC_OVERLAY_OLD = _IOWR('V', 14, ctypes.c_int) +VIDIOC_S_PARM_OLD = _IOW('V', 22, v4l2_streamparm) +VIDIOC_S_CTRL_OLD = _IOW('V', 28, v4l2_control) +VIDIOC_G_AUDIO_OLD = _IOWR('V', 33, v4l2_audio) +VIDIOC_G_AUDOUT_OLD = _IOWR('V', 49, v4l2_audioout) +VIDIOC_CROPCAP_OLD = _IOR('V', 58, v4l2_cropcap) + +BASE_VIDIOC_PRIVATE = 192 -- cgit v0.9.1