2 * Copyright 2002 Dmitry Timoshkov for CodeWeavers
3 * Copyright 2005 Maarten Lankhorst
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "wine/port.h"
26 #ifdef HAVE_SYS_IOCTL_H
27 # include <sys/ioctl.h>
29 #ifdef HAVE_SYS_STAT_H
30 # include <sys/stat.h>
32 #ifdef HAVE_SYS_ERRNO_H
33 # include <sys/errno.h>
35 #ifdef HAVE_SYS_TIME_H
36 # include <sys/time.h>
38 #ifdef HAVE_ASM_TYPES_H
39 # include <asm/types.h>
41 #ifdef HAVE_LINUX_VIDEODEV_H
42 # include <linux/videodev.h>
56 #include "wine/debug.h"
58 #define CAP_DESC_MAX 32
60 WINE_DEFAULT_DEBUG_CHANNEL(avicap);
63 /***********************************************************************
64 * capCreateCaptureWindowW (AVICAP32.@)
66 HWND VFWAPI capCreateCaptureWindowW(LPCWSTR lpszWindowName, DWORD dwStyle, INT x,
67 INT y, INT nWidth, INT nHeight, HWND hWnd,
70 FIXME("%s, %08x, %08x, %08x, %08x, %08x, %p, %08x\n",
71 debugstr_w(lpszWindowName), dwStyle,
72 x, y, nWidth, nHeight, hWnd, nID);
76 /***********************************************************************
77 * capCreateCaptureWindowA (AVICAP32.@)
79 HWND VFWAPI capCreateCaptureWindowA(LPCSTR lpszWindowName, DWORD dwStyle, INT x,
80 INT y, INT nWidth, INT nHeight, HWND hWnd,
82 { UNICODE_STRING nameW;
85 if (lpszWindowName) RtlCreateUnicodeStringFromAsciiz(&nameW, lpszWindowName);
86 else nameW.Buffer = NULL;
88 retW = capCreateCaptureWindowW(nameW.Buffer, dwStyle, x, y, nWidth, nHeight,
90 RtlFreeUnicodeString(&nameW);
95 #ifdef HAVE_LINUX_VIDEODEV_H
97 static int xioctl(int fd, int request, void * arg)
101 do r = ioctl (fd, request, arg);
102 while (-1 == r && EINTR == errno);
107 static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
112 struct video_capability capa;
114 struct v4l2_capability caps;
117 snprintf(device, sizeof(device), "/dev/video%i", devnum);
119 if (stat (device, &st) == -1) {
120 /* This is probably because the device does not exist */
121 WARN("%s: %s\n", device, strerror(errno));
125 if (!S_ISCHR (st.st_mode)) {
126 ERR("%s: Not a device\n", device);
130 fd = open(device, O_RDWR | O_NONBLOCK);
132 ERR("%s: Failed to open: %s\n", device, strerror(errno));
137 memset(&caps, 0, sizeof(caps));
138 if (xioctl(fd, VIDIOC_QUERYCAP, &caps) != -1) {
139 lstrcpynA(name, (char *)caps.card, namesize);
140 snprintf(version, versionsize, "%s v%u.%u.%u", (char *)caps.driver, (caps.version >> 16) & 0xFF,
141 (caps.version >> 8) & 0xFF, caps.version & 0xFF);
146 if (errno != EINVAL && errno != 515)
147 WARN("%s: ioctl failed: %s -- Falling back to V4L\n", device, strerror(errno));
148 else WARN("%s: Not a V4L2 compatible device, trying V4l 1\n", device);
149 #endif /* HAVE_V4L2 */
151 memset(&capa, 0, sizeof(capa));
152 if (xioctl(fd, VIDIOCGCAP, &capa) == -1) {
153 /* errno 515 is used by some webcam drivers for unknown IOICTL command */
154 if (errno != EINVAL && errno != 515)
155 ERR("%s: Querying failed: %s\n", device, strerror(errno));
156 else ERR("%s: Querying failed: Not a V4L compatible device\n", device);
161 lstrcpynA(name, capa.name, namesize);
162 lstrcpynA(version, device, versionsize);
167 #else /* HAVE_LINUX_VIDEODEV_H */
169 static BOOL query_video_device(int devnum, char *name, int namesize, char *version, int versionsize)
171 ERR("Video 4 Linux support not enabled\n");
175 #endif /* HAVE_LINUX_VIDEODEV_H */
177 /***********************************************************************
178 * capGetDriverDescriptionA (AVICAP32.@)
180 BOOL VFWAPI capGetDriverDescriptionA(WORD wDriverIndex, LPSTR lpszName,
181 INT cbName, LPSTR lpszVer, INT cbVer)
184 WCHAR devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
185 TRACE("--> capGetDriverDescriptionW\n");
186 retval = capGetDriverDescriptionW(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX);
188 WideCharToMultiByte(CP_ACP, 0, devname, -1, lpszName, cbName, NULL, NULL);
189 WideCharToMultiByte(CP_ACP, 0, devver, -1, lpszVer, cbVer, NULL, NULL);
194 /***********************************************************************
195 * capGetDriverDescriptionW (AVICAP32.@)
197 BOOL VFWAPI capGetDriverDescriptionW(WORD wDriverIndex, LPWSTR lpszName,
198 INT cbName, LPWSTR lpszVer, INT cbVer)
200 char devname[CAP_DESC_MAX], devver[CAP_DESC_MAX];
202 if (!query_video_device(wDriverIndex, devname, CAP_DESC_MAX, devver, CAP_DESC_MAX)) return FALSE;
204 MultiByteToWideChar(CP_UNIXCP, 0, devname, -1, lpszName, cbName);
205 MultiByteToWideChar(CP_UNIXCP, 0, devver, -1, lpszVer, cbVer);
206 TRACE("Version: %s - Name: %s\n", debugstr_w(lpszVer), debugstr_w(lpszName));