dlls/qcap/v4l.c

   1 /*
   2  * v4l2 backend to the VFW Capture filter
   3  *
   4  * Copyright 2005 Maarten Lankhorst
   5  * Copyright 2019 Zebediah Figura
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #if 0
  23 #pragma makedep unix
  24 #endif
  25
  26 #define BIONIC_IOCTL_NO_SIGNEDNESS_OVERLOAD  /* work around ioctl breakage on Android */
  27
  28 #include "config.h"
  29
  30 #include <stdarg.h>
  31 #include <stdio.h>
  32 #include <stdlib.h>
  33 #include <fcntl.h>
  34 #include <dlfcn.h>
  35 #include <sys/ioctl.h>
  36 #include <sys/mman.h>
  37 #include <errno.h>
  38 #include <sys/time.h>
  39 #ifdef HAVE_ASM_TYPES_H
  40 #include <asm/types.h>
  41 #endif
  42 #ifdef HAVE_LINUX_VIDEODEV2_H
  43 #include <linux/videodev2.h>
  44 #endif
  45 #include <unistd.h>
  46
  47 #include "ntstatus.h"
  48 #define WIN32_NO_STATUS
  49 #include "initguid.h"
  50 #include "qcap_private.h"
  51 #include "winternl.h"
  52
  53 #ifdef HAVE_LINUX_VIDEODEV2_H
  54
  55 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  56 WINE_DECLARE_DEBUG_CHANNEL(winediag);
  57
  58 static typeof(open) *video_open = open;
  59 static typeof(close) *video_close = close;
  60 static typeof(ioctl) *video_ioctl = ioctl;
  61 static typeof(read) *video_read = read;
  62
  63 static BOOL video_init(void)
  64 {
  65 #ifdef SONAME_LIBV4L2
  66     static void *video_lib;
  67
  68     if (video_lib)
  69         return TRUE;
  70     if (!(video_lib = dlopen(SONAME_LIBV4L2, RTLD_NOW)))
  71         return FALSE;
  72     video_open = dlsym(video_lib, "v4l2_open");
  73     video_close = dlsym(video_lib, "v4l2_close");
  74     video_ioctl = dlsym(video_lib, "v4l2_ioctl");
  75     video_read = dlsym(video_lib, "v4l2_read");
  76
  77     return TRUE;
  78 #else
  79     return FALSE;
  80 #endif
  81 }
  82
  83 struct caps
  84 {
  85     __u32 pixelformat;
  86     AM_MEDIA_TYPE media_type;
  87     VIDEOINFOHEADER video_info;
  88     VIDEO_STREAM_CONFIG_CAPS config;
  89 };
  90
  91 struct video_capture_device
  92 {
  93     const struct caps *current_caps;
  94     struct caps *caps;
  95     LONG caps_count;
  96
  97     int image_size, image_pitch;
  98     BYTE *image_data;
  99
 100     int fd, mmap;
 101 };
 102
 103 static int xioctl(int fd, int request, void * arg)
 104 {
 105     int r;
 106
 107     do {
 108         r = video_ioctl (fd, request, arg);
 109     } while (-1 == r && EINTR == errno);
 110
 111     return r;
 112 }
 113
 114 static struct video_capture_device *get_device( video_capture_device_t dev )
 115 {
 116     return (struct video_capture_device *)(ULONG_PTR)dev;
 117 }
 118
 119 static void device_destroy(struct video_capture_device *device)
 120 {
 121     if (device->fd != -1)
 122         video_close(device->fd);
 123     if (device->caps_count)
 124         free(device->caps);
 125     free(device->image_data);
 126     free(device);
 127 }
 128
 129 static const struct caps *find_caps(struct video_capture_device *device, const AM_MEDIA_TYPE *mt)
 130 {
 131     const VIDEOINFOHEADER *video_info = (VIDEOINFOHEADER *)mt->pbFormat;
 132     LONG index;
 133
 134     if (mt->cbFormat < sizeof(VIDEOINFOHEADER) || !video_info)
 135         return NULL;
 136
 137     for (index = 0; index < device->caps_count; index++)
 138     {
 139         struct caps *caps = &device->caps[index];
 140
 141         if (IsEqualGUID(&mt->formattype, &caps->media_type.formattype)
 142                 && video_info->bmiHeader.biWidth == caps->video_info.bmiHeader.biWidth
 143                 && video_info->bmiHeader.biHeight == caps->video_info.bmiHeader.biHeight)
 144             return caps;
 145     }
 146     return NULL;
 147 }
 148
 149 static NTSTATUS v4l_device_check_format( void *args )
 150 {
 151     const struct check_format_params *params = args;
 152     struct video_capture_device *device = get_device(params->device);
 153
 154     TRACE("device %p, mt %p.\n", device, params->mt);
 155
 156     if (!IsEqualGUID(&params->mt->majortype, &MEDIATYPE_Video))
 157         return E_FAIL;
 158
 159     if (find_caps(device, params->mt))
 160         return S_OK;
 161
 162     return E_FAIL;
 163 }
 164
 165 static HRESULT set_caps(struct video_capture_device *device, const struct caps *caps)
 166 {
 167     struct v4l2_format format = {0};
 168     LONG width, height, image_size;
 169     BYTE *image_data;
 170
 171     width = caps->video_info.bmiHeader.biWidth;
 172     height = caps->video_info.bmiHeader.biHeight;
 173     image_size = width * height * caps->video_info.bmiHeader.biBitCount / 8;
 174
 175     if (!(image_data = malloc(image_size)))
 176     {
 177         ERR("Failed to allocate memory.\n");
 178         return E_OUTOFMEMORY;
 179     }
 180
 181     format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 182     format.fmt.pix.pixelformat = caps->pixelformat;
 183     format.fmt.pix.width = width;
 184     format.fmt.pix.height = height;
 185     if (xioctl(device->fd, VIDIOC_S_FMT, &format) == -1
 186             || format.fmt.pix.pixelformat != caps->pixelformat
 187             || format.fmt.pix.width != width
 188             || format.fmt.pix.height != height)
 189     {
 190         ERR("Failed to set pixel format: %s.\n", strerror(errno));
 191         free(image_data);
 192         return VFW_E_TYPE_NOT_ACCEPTED;
 193     }
 194
 195     device->current_caps = caps;
 196     device->image_size = image_size;
 197     device->image_pitch = width * caps->video_info.bmiHeader.biBitCount / 8;
 198     free(device->image_data);
 199     device->image_data = image_data;
 200     return S_OK;
 201 }
 202
 203 static NTSTATUS v4l_device_set_format( void *args )
 204 {
 205     const struct set_format_params *params = args;
 206     struct video_capture_device *device = get_device(params->device);
 207     const struct caps *caps;
 208
 209     caps = find_caps(device, params->mt);
 210     if (!caps)
 211         return E_FAIL;
 212
 213     if (device->current_caps == caps)
 214         return S_OK;
 215
 216     return set_caps(device, caps);
 217 }
 218
 219 static NTSTATUS v4l_device_get_format( void *args )
 220 {
 221     const struct get_format_params *params = args;
 222     struct video_capture_device *device = get_device(params->device);
 223
 224     *params->mt = device->current_caps->media_type;
 225     *params->format = device->current_caps->video_info;
 226     return S_OK;
 227 }
 228
 229 static NTSTATUS v4l_device_get_media_type( void *args )
 230 {
 231     const struct get_media_type_params *params = args;
 232     struct video_capture_device *device = get_device(params->device);
 233     unsigned int caps_count = (device->current_caps) ? 1 : device->caps_count;
 234
 235     if (params->index >= caps_count)
 236         return VFW_S_NO_MORE_ITEMS;
 237
 238     if (device->current_caps)
 239     {
 240         *params->mt = device->current_caps->media_type;
 241         *params->format = device->current_caps->video_info;
 242     }
 243     else
 244     {
 245         *params->mt = device->caps[params->index].media_type;
 246         *params->format = device->caps[params->index].video_info;
 247     }
 248     return S_OK;
 249 }
 250
 251 static __u32 v4l2_cid_from_qcap_property(VideoProcAmpProperty property)
 252 {
 253     switch (property)
 254     {
 255     case VideoProcAmp_Brightness:
 256         return V4L2_CID_BRIGHTNESS;
 257     case VideoProcAmp_Contrast:
 258         return V4L2_CID_CONTRAST;
 259     case VideoProcAmp_Hue:
 260         return V4L2_CID_HUE;
 261     case VideoProcAmp_Saturation:
 262         return V4L2_CID_SATURATION;
 263     default:
 264         FIXME("Unhandled property %d.\n", property);
 265         return 0;
 266     }
 267 }
 268
 269 static NTSTATUS v4l_device_get_prop_range( void *args )
 270 {
 271     const struct get_prop_range_params *params = args;
 272     struct video_capture_device *device = get_device(params->device);
 273     struct v4l2_queryctrl ctrl;
 274
 275     ctrl.id = v4l2_cid_from_qcap_property(params->property);
 276
 277     if (xioctl(device->fd, VIDIOC_QUERYCTRL, &ctrl) == -1)
 278     {
 279         WARN("Failed to query control: %s\n", strerror(errno));
 280         return E_PROP_ID_UNSUPPORTED;
 281     }
 282
 283     *params->min = ctrl.minimum;
 284     *params->max = ctrl.maximum;
 285     *params->step = ctrl.step;
 286     *params->default_value = ctrl.default_value;
 287     *params->flags = VideoProcAmp_Flags_Manual;
 288     return S_OK;
 289 }
 290
 291 static NTSTATUS v4l_device_get_prop( void *args )
 292 {
 293     const struct get_prop_params *params = args;
 294     struct video_capture_device *device = get_device(params->device);
 295     struct v4l2_control ctrl;
 296
 297     ctrl.id = v4l2_cid_from_qcap_property(params->property);
 298
 299     if (xioctl(device->fd, VIDIOC_G_CTRL, &ctrl) == -1)
 300     {
 301         WARN("Failed to get property: %s\n", strerror(errno));
 302         return E_FAIL;
 303     }
 304
 305     *params->value = ctrl.value;
 306     *params->flags = VideoProcAmp_Flags_Manual;
 307
 308     return S_OK;
 309 }
 310
 311 static NTSTATUS v4l_device_set_prop( void *args )
 312 {
 313     const struct set_prop_params *params = args;
 314     struct video_capture_device *device = get_device(params->device);
 315     struct v4l2_control ctrl;
 316
 317     ctrl.id = v4l2_cid_from_qcap_property(params->property);
 318     ctrl.value = params->value;
 319
 320     if (xioctl(device->fd, VIDIOC_S_CTRL, &ctrl) == -1)
 321     {
 322         WARN("Failed to set property: %s\n", strerror(errno));
 323         return E_FAIL;
 324     }
 325
 326     return S_OK;
 327 }
 328
 329 static void reverse_image(struct video_capture_device *device, LPBYTE output, const BYTE *input)
 330 {
 331     int inoffset, outoffset, pitch;
 332
 333     /* the whole image needs to be reversed,
 334        because the dibs are messed up in windows */
 335     outoffset = device->image_size;
 336     pitch = device->image_pitch;
 337     inoffset = 0;
 338     while (outoffset > 0)
 339     {
 340         int x;
 341         outoffset -= pitch;
 342         for (x = 0; x < pitch; x++)
 343             output[outoffset + x] = input[inoffset + x];
 344         inoffset += pitch;
 345     }
 346 }
 347
 348 static NTSTATUS v4l_device_read_frame( void *args )
 349 {
 350     const struct read_frame_params *params = args;
 351     struct video_capture_device *device = get_device(params->device);
 352
 353     while (video_read(device->fd, device->image_data, device->image_size) < 0)
 354     {
 355         if (errno != EAGAIN)
 356         {
 357             ERR("Failed to read frame: %s\n", strerror(errno));
 358             return FALSE;
 359         }
 360     }
 361
 362     reverse_image(device, params->data, device->image_data);
 363     return TRUE;
 364 }
 365
 366 static void fill_caps(__u32 pixelformat, __u32 width, __u32 height,
 367         __u32 max_fps, __u32 min_fps, struct caps *caps)
 368 {
 369     LONG depth = 24;
 370
 371     memset(caps, 0, sizeof(*caps));
 372     caps->video_info.dwBitRate = width * height * depth * max_fps;
 373     caps->video_info.bmiHeader.biSize = sizeof(caps->video_info.bmiHeader);
 374     caps->video_info.bmiHeader.biWidth = width;
 375     caps->video_info.bmiHeader.biHeight = height;
 376     caps->video_info.bmiHeader.biPlanes = 1;
 377     caps->video_info.bmiHeader.biBitCount = depth;
 378     caps->video_info.bmiHeader.biCompression = BI_RGB;
 379     caps->video_info.bmiHeader.biSizeImage = width * height * depth / 8;
 380     caps->media_type.majortype = MEDIATYPE_Video;
 381     caps->media_type.subtype = MEDIASUBTYPE_RGB24;
 382     caps->media_type.bFixedSizeSamples = TRUE;
 383     caps->media_type.bTemporalCompression = FALSE;
 384     caps->media_type.lSampleSize = width * height * depth / 8;
 385     caps->media_type.formattype = FORMAT_VideoInfo;
 386     caps->media_type.pUnk = NULL;
 387     caps->media_type.cbFormat = sizeof(VIDEOINFOHEADER);
 388     /* We reallocate the caps array, so pbFormat has to be set after all caps
 389      * have been enumerated. */
 390     caps->config.MaxFrameInterval = 10000000 * max_fps;
 391     caps->config.MinFrameInterval = 10000000 * min_fps;
 392     caps->config.MaxOutputSize.cx = width;
 393     caps->config.MaxOutputSize.cy = height;
 394     caps->config.MinOutputSize.cx = width;
 395     caps->config.MinOutputSize.cy = height;
 396     caps->config.guid = FORMAT_VideoInfo;
 397     caps->config.MinBitsPerSecond = width * height * depth * min_fps;
 398     caps->config.MaxBitsPerSecond = width * height * depth * max_fps;
 399     caps->pixelformat = pixelformat;
 400 }
 401
 402 static NTSTATUS v4l_device_get_caps( void *args )
 403 {
 404     const struct get_caps_params *params = args;
 405     struct video_capture_device *device = get_device(params->device);
 406
 407     *params->caps   = device->caps[params->index].config;
 408     *params->mt     = device->caps[params->index].media_type;
 409     *params->format = device->caps[params->index].video_info;
 410     return S_OK;
 411 }
 412
 413 static NTSTATUS v4l_device_get_caps_count( void *args )
 414 {
 415     const struct get_caps_count_params *params = args;
 416     struct video_capture_device *device = get_device(params->device);
 417
 418     *params->count = device->caps_count;
 419     return S_OK;
 420 }
 421
 422 static NTSTATUS v4l_device_create( void *args )
 423 {
 424     const struct create_params *params = args;
 425     struct v4l2_frmsizeenum frmsize = {0};
 426     struct video_capture_device *device;
 427     struct v4l2_capability caps = {{0}};
 428     struct v4l2_format format = {0};
 429     BOOL have_libv4l2;
 430     char path[20];
 431     HRESULT hr;
 432     int fd, i;
 433
 434     have_libv4l2 = video_init();
 435
 436     if (!(device = calloc(1, sizeof(*device))))
 437         return E_OUTOFMEMORY;
 438
 439     sprintf(path, "/dev/video%i", params->index);
 440     TRACE("Opening device %s.\n", path);
 441 #ifdef O_CLOEXEC
 442     if ((fd = video_open(path, O_RDWR | O_NONBLOCK | O_CLOEXEC)) == -1 && errno == EINVAL)
 443 #endif
 444         fd = video_open(path, O_RDWR | O_NONBLOCK);
 445     if (fd == -1)
 446     {
 447         WARN("Failed to open video device: %s\n", strerror(errno));
 448         goto error;
 449     }
 450     fcntl(fd, F_SETFD, FD_CLOEXEC);  /* in case O_CLOEXEC isn't supported */
 451     device->fd = fd;
 452
 453     if (xioctl(fd, VIDIOC_QUERYCAP, &caps) == -1)
 454     {
 455         WARN("Failed to query device capabilities: %s\n", strerror(errno));
 456         goto error;
 457     }
 458
 459 #ifdef V4L2_CAP_DEVICE_CAPS
 460     if (caps.capabilities & V4L2_CAP_DEVICE_CAPS)
 461         caps.capabilities = caps.device_caps;
 462 #endif
 463
 464     if (!(caps.capabilities & V4L2_CAP_VIDEO_CAPTURE))
 465     {
 466         WARN("Device does not support single-planar video capture.\n");
 467         goto error;
 468     }
 469
 470     if (!(caps.capabilities & V4L2_CAP_READWRITE))
 471     {
 472         WARN("Device does not support read().\n");
 473         if (!have_libv4l2)
 474 #ifdef SONAME_LIBV4L2
 475             ERR_(winediag)("Reading from %s requires libv4l2, but it could not be loaded.\n", path);
 476 #else
 477             ERR_(winediag)("Reading from %s requires libv4l2, but Wine was compiled without libv4l2 support.\n", path);
 478 #endif
 479         goto error;
 480     }
 481
 482     format.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 483     if (xioctl(fd, VIDIOC_G_FMT, &format) == -1)
 484     {
 485         ERR("Failed to get device format: %s\n", strerror(errno));
 486         goto error;
 487     }
 488
 489     format.fmt.pix.pixelformat = V4L2_PIX_FMT_BGR24;
 490     if (xioctl(fd, VIDIOC_TRY_FMT, &format) == -1
 491             || format.fmt.pix.pixelformat != V4L2_PIX_FMT_BGR24)
 492     {
 493         ERR("This device doesn't support V4L2_PIX_FMT_BGR24 format.\n");
 494         goto error;
 495     }
 496
 497     frmsize.pixel_format = V4L2_PIX_FMT_BGR24;
 498     while (xioctl(fd, VIDIOC_ENUM_FRAMESIZES, &frmsize) != -1)
 499     {
 500         struct v4l2_frmivalenum frmival = {0};
 501         __u32 max_fps = 30, min_fps = 30;
 502         struct caps *new_caps;
 503
 504         frmival.pixel_format = format.fmt.pix.pixelformat;
 505         if (frmsize.type == V4L2_FRMSIZE_TYPE_DISCRETE)
 506         {
 507             frmival.width = frmsize.discrete.width;
 508             frmival.height = frmsize.discrete.height;
 509         }
 510         else if (frmsize.type == V4L2_FRMSIZE_TYPE_STEPWISE)
 511         {
 512             frmival.width = frmsize.stepwise.max_width;
 513             frmival.height = frmsize.stepwise.min_height;
 514         }
 515         else
 516         {
 517             FIXME("Unhandled frame size type: %d.\n", frmsize.type);
 518             continue;
 519         }
 520
 521         if (xioctl(fd, VIDIOC_ENUM_FRAMEINTERVALS, &frmival) != -1)
 522         {
 523             if (frmival.type == V4L2_FRMIVAL_TYPE_DISCRETE)
 524             {
 525                 max_fps = frmival.discrete.denominator / frmival.discrete.numerator;
 526                 min_fps = max_fps;
 527             }
 528             else if (frmival.type == V4L2_FRMIVAL_TYPE_STEPWISE
 529                     || frmival.type == V4L2_FRMIVAL_TYPE_CONTINUOUS)
 530             {
 531                 max_fps = frmival.stepwise.max.denominator / frmival.stepwise.max.numerator;
 532                 min_fps = frmival.stepwise.min.denominator / frmival.stepwise.min.numerator;
 533             }
 534         }
 535         else
 536             ERR("Failed to get fps: %s.\n", strerror(errno));
 537
 538         new_caps = realloc(device->caps, (device->caps_count + 1) * sizeof(*device->caps));
 539         if (!new_caps)
 540             goto error;
 541         device->caps = new_caps;
 542         fill_caps(format.fmt.pix.pixelformat, frmsize.discrete.width, frmsize.discrete.height,
 543                 max_fps, min_fps, &device->caps[device->caps_count]);
 544         device->caps_count++;
 545
 546         frmsize.index++;
 547     }
 548
 549     /* We reallocate the caps array, so we have to delay setting pbFormat. */
 550     for (i = 0; i < device->caps_count; ++i)
 551         device->caps[i].media_type.pbFormat = (BYTE *)&device->caps[i].video_info;
 552
 553     if (FAILED(hr = set_caps(device, &device->caps[0])))
 554     {
 555         if (hr == VFW_E_TYPE_NOT_ACCEPTED && !have_libv4l2)
 556             ERR_(winediag)("You may need libv4l2 to use this device.\n");
 557         goto error;
 558     }
 559
 560     TRACE("Format: %d bpp - %dx%d.\n", device->current_caps->video_info.bmiHeader.biBitCount,
 561             (int)device->current_caps->video_info.bmiHeader.biWidth,
 562             (int)device->current_caps->video_info.bmiHeader.biHeight);
 563
 564     *params->device = (ULONG_PTR)device;
 565     return S_OK;
 566
 567 error:
 568     device_destroy(device);
 569     return E_FAIL;
 570 }
 571
 572 static NTSTATUS v4l_device_destroy( void *args )
 573 {
 574     const struct destroy_params *params = args;
 575
 576     device_destroy( get_device(params->device) );
 577     return S_OK;
 578 }
 579
 580 const unixlib_entry_t __wine_unix_call_funcs[] =
 581 {
 582     v4l_device_create,
 583     v4l_device_destroy,
 584     v4l_device_check_format,
 585     v4l_device_set_format,
 586     v4l_device_get_format,
 587     v4l_device_get_media_type,
 588     v4l_device_get_caps,
 589     v4l_device_get_caps_count,
 590     v4l_device_get_prop_range,
 591     v4l_device_get_prop,
 592     v4l_device_set_prop,
 593     v4l_device_read_frame,
 594 };
 595
 596 #ifdef _WIN64
 597
 598 typedef ULONG PTR32;
 599
 600 struct am_media_type32
 601 {
 602     GUID       majortype;
 603     GUID       subtype;
 604     BOOL       bFixedSizeSamples;
 605     BOOL       bTemporalCompression;
 606     ULONG      lSampleSize;
 607     GUID       formattype;
 608     PTR32      pUnk;
 609     ULONG      cbFormat;
 610     PTR32      pbFormat;
 611 };
 612
 613 static AM_MEDIA_TYPE *get_media_type( const struct am_media_type32 *mt32, AM_MEDIA_TYPE *mt )
 614 {
 615     mt->majortype            = mt32->majortype;
 616     mt->subtype              = mt32->subtype;
 617     mt->bFixedSizeSamples    = mt32->bFixedSizeSamples;
 618     mt->bTemporalCompression = mt32->bTemporalCompression;
 619     mt->lSampleSize          = mt32->lSampleSize;
 620     mt->formattype           = mt32->formattype;
 621     mt->pUnk                 = NULL;
 622     mt->cbFormat             = mt32->cbFormat;
 623     mt->pbFormat             = ULongToPtr(mt32->pbFormat);
 624     return mt;
 625 }
 626
 627 static void put_media_type( const AM_MEDIA_TYPE *mt, struct am_media_type32 *mt32 )
 628 {
 629     mt32->majortype            = mt->majortype;
 630     mt32->subtype              = mt->subtype;
 631     mt32->bFixedSizeSamples    = mt->bFixedSizeSamples;
 632     mt32->bTemporalCompression = mt->bTemporalCompression;
 633     mt32->lSampleSize          = mt->lSampleSize;
 634     mt32->formattype           = mt->formattype;
 635 }
 636
 637 static NTSTATUS wow64_v4l_device_create( void *args )
 638 {
 639     struct
 640     {
 641         unsigned int index;
 642         PTR32 device;
 643     } const *params32 = args;
 644
 645     struct create_params params =
 646     {
 647         params32->index,
 648         ULongToPtr(params32->device)
 649     };
 650
 651     return v4l_device_create( &params );
 652 }
 653
 654 static NTSTATUS wow64_v4l_device_check_format( void *args )
 655 {
 656     struct
 657     {
 658         video_capture_device_t device;
 659         PTR32                  mt;
 660     } const *params32 = args;
 661
 662     AM_MEDIA_TYPE mt;
 663     struct check_format_params params =
 664     {
 665         params32->device,
 666         get_media_type( ULongToPtr(params32->mt), &mt )
 667     };
 668
 669     return v4l_device_check_format( &params );
 670 }
 671
 672 static NTSTATUS wow64_v4l_device_set_format( void *args )
 673 {
 674     struct
 675     {
 676         video_capture_device_t device;
 677         PTR32                  mt;
 678     } const *params32 = args;
 679
 680     AM_MEDIA_TYPE mt;
 681     struct set_format_params params =
 682     {
 683         params32->device,
 684         get_media_type( ULongToPtr(params32->mt), &mt )
 685     };
 686
 687     return v4l_device_set_format( &params );
 688 }
 689
 690 static NTSTATUS wow64_v4l_device_get_format( void *args )
 691 {
 692     struct
 693     {
 694         video_capture_device_t device;
 695         PTR32                  mt;
 696         PTR32                  format;
 697     } const *params32 = args;
 698
 699     AM_MEDIA_TYPE mt;
 700     struct get_format_params params =
 701     {
 702         params32->device,
 703         &mt,
 704         ULongToPtr(params32->format)
 705     };
 706
 707     NTSTATUS status = v4l_device_get_format( &params );
 708     if (!status) put_media_type( &mt, ULongToPtr(params32->mt) );
 709     return status;
 710 }
 711
 712 static NTSTATUS wow64_v4l_device_get_media_type( void *args )
 713 {
 714     struct
 715     {
 716         video_capture_device_t device;
 717         unsigned int           index;
 718         PTR32                  mt;
 719         PTR32                  format;
 720     } const *params32 = args;
 721
 722     AM_MEDIA_TYPE mt;
 723     struct get_media_type_params params =
 724     {
 725         params32->device,
 726         params32->index,
 727         &mt,
 728         ULongToPtr(params32->format)
 729     };
 730
 731     NTSTATUS status = v4l_device_get_media_type( &params );
 732     if (!status) put_media_type( &mt, ULongToPtr(params32->mt) );
 733     return status;
 734 }
 735
 736 static NTSTATUS wow64_v4l_device_get_caps( void *args )
 737 {
 738     struct
 739     {
 740         video_capture_device_t device;
 741         unsigned int           index;
 742         PTR32                  mt;
 743         PTR32                  format;
 744         PTR32                  caps;
 745     } const *params32 = args;
 746
 747     AM_MEDIA_TYPE mt;
 748     struct get_caps_params params =
 749     {
 750         params32->device,
 751         params32->index,
 752         &mt,
 753         ULongToPtr(params32->format),
 754         ULongToPtr(params32->caps)
 755     };
 756
 757     NTSTATUS status = v4l_device_get_caps( &params );
 758     if (!status) put_media_type( &mt, ULongToPtr(params32->mt) );
 759     return status;
 760 }
 761
 762 static NTSTATUS wow64_v4l_device_get_caps_count( void *args )
 763 {
 764     struct
 765     {
 766         video_capture_device_t device;
 767         PTR32                  count;
 768     } const *params32 = args;
 769
 770     struct get_caps_count_params params =
 771     {
 772         params32->device,
 773         ULongToPtr(params32->count)
 774     };
 775
 776     return v4l_device_get_caps_count( &params );
 777 }
 778
 779 static NTSTATUS wow64_v4l_device_get_prop_range( void *args )
 780 {
 781     struct
 782     {
 783         video_capture_device_t device;
 784         VideoProcAmpProperty   property;
 785         PTR32                  min;
 786         PTR32                  max;
 787         PTR32                  step;
 788         PTR32                  default_value;
 789         PTR32                  flags;
 790     } const *params32 = args;
 791
 792     struct get_prop_range_params params =
 793     {
 794         params32->device,
 795         params32->property,
 796         ULongToPtr(params32->min),
 797         ULongToPtr(params32->max),
 798         ULongToPtr(params32->step),
 799         ULongToPtr(params32->default_value),
 800         ULongToPtr(params32->flags)
 801     };
 802
 803     return v4l_device_get_prop_range( &params );
 804 }
 805
 806 static NTSTATUS wow64_v4l_device_get_prop( void *args )
 807 {
 808     struct
 809     {
 810         video_capture_device_t device;
 811         VideoProcAmpProperty   property;
 812         PTR32                  value;
 813         PTR32                  flags;
 814     } const *params32 = args;
 815
 816     struct get_prop_params params =
 817     {
 818         params32->device,
 819         params32->property,
 820         ULongToPtr(params32->value),
 821         ULongToPtr(params32->flags)
 822     };
 823
 824     return v4l_device_get_prop( &params );
 825 }
 826
 827 static NTSTATUS wow64_v4l_device_read_frame( void *args )
 828 {
 829     struct
 830     {
 831         video_capture_device_t device;
 832         PTR32                  data;
 833     } const *params32 = args;
 834
 835     struct read_frame_params params =
 836     {
 837         params32->device,
 838         ULongToPtr(params32->data)
 839     };
 840
 841     return v4l_device_read_frame( &params );
 842 }
 843
 844 const unixlib_entry_t __wine_unix_call_wow64_funcs[] =
 845 {
 846     wow64_v4l_device_create,
 847     v4l_device_destroy,
 848     wow64_v4l_device_check_format,
 849     wow64_v4l_device_set_format,
 850     wow64_v4l_device_get_format,
 851     wow64_v4l_device_get_media_type,
 852     wow64_v4l_device_get_caps,
 853     wow64_v4l_device_get_caps_count,
 854     wow64_v4l_device_get_prop_range,
 855     wow64_v4l_device_get_prop,
 856     v4l_device_set_prop,
 857     wow64_v4l_device_read_frame,
 858 };
 859
 860 #endif /* _WIN64 */
 861
 862 #endif /* HAVE_LINUX_VIDEODEV2_H */