dlls/qcap/v4l.c

   1 /*
   2  * DirectShow capture services (QCAP.DLL)
   3  *
   4  * Copyright 2005 Maarten Lankhorst
   5  *
   6  * This file contains the part of the vfw capture interface that
   7  * does the actual Video4Linux(1/2) stuff required for capturing
   8  * and setting/getting media format..
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #define NONAMELESSSTRUCT
  29 #define NONAMELESSUNION
  30 #define COBJMACROS
  31
  32 #include <stdarg.h>
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "wtypes.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38 #include "dshow.h"
  39 #include "vfwmsgs.h"
  40 #include "amvideo.h"
  41 #include "wine/debug.h"
  42
  43 #include "capture.h"
  44 #include "qcap_main.h"
  45 #include "pin.h"
  46
  47 #include <stdio.h>
  48 #include <fcntl.h>
  49
  50 #ifdef HAVE_SYS_IOCTL_H
  51 #include <sys/ioctl.h>
  52 #endif
  53 #ifdef HAVE_SYS_MMAN_H
  54 #include <sys/mman.h>
  55 #endif
  56 #ifdef HAVE_SYS_ERRNO_H
  57 #include <sys/errno.h>
  58 #endif
  59 #ifdef HAVE_SYS_TIME_H
  60 #include <sys/time.h>
  61 #endif
  62 #ifdef HAVE_ASM_TYPES_H
  63 #include <asm/types.h>
  64 #endif
  65 #ifdef HAVE_LINUX_VIDEODEV_H
  66 #include <linux/videodev.h>
  67 #endif
  68 #ifdef HAVE_UNISTD_H
  69 #include <unistd.h>
  70 #endif
  71
  72 WINE_DEFAULT_DEBUG_CHANNEL(qcap_v4l);
  73
  74 #ifdef HAVE_LINUX_VIDEODEV_H
  75
  76 typedef void (* Renderer)(Capture *, LPBYTE bufferin, LPBYTE stream);
  77
  78 struct _Capture
  79 {
  80     UINT width, height, bitDepth, fps, outputwidth, outputheight;
  81     BOOL swresize;
  82
  83     CRITICAL_SECTION CritSect;
  84
  85     IPin *pOut;
  86     int fd, mmap;
  87     int iscommitted, stopped;
  88     struct video_picture pict;
  89     int dbrightness, dhue, dcolour, dcontrast;
  90
  91     /* mmap (V4l1) */
  92     struct video_mmap *grab_buf;
  93     struct video_mbuf gb_buffers;
  94     unsigned char *pmap;
  95     int buffers;
  96
  97     /* read (V4l1) */
  98     int imagesize;
  99     char * grab_data;
 100
 101     int curframe;
 102
 103     HANDLE thread;
 104     Renderer renderer;
 105 };
 106
 107 struct renderlist
 108 {
 109     int depth;
 110     const char* name;
 111     Renderer renderer;
 112 };
 113
 114 static void renderer_RGB(Capture *capBox, LPBYTE bufferin, LPBYTE stream);
 115 static void renderer_YUV(Capture *capBox, LPBYTE bufferin, LPBYTE stream);
 116
 117 static const struct renderlist renderlist_V4l[] = {
 118     {  0, "NULL renderer",               NULL },
 119     {  8, "Gray scales",                 NULL }, /* 1,  Don't support  */
 120     {  0, "High 240 cube (BT848)",       NULL }, /* 2,  Don't support  */
 121     { 16, "16 bit RGB (565)",            NULL }, /* 3,  Don't support  */
 122     { 24, "24 bit RGB values",   renderer_RGB }, /* 4,  Supported,     */
 123     { 32, "32 bit RGB values",   renderer_RGB }, /* 5,  Supported      */
 124     { 16, "15 bit RGB (555)",            NULL }, /* 6,  Don't support  */
 125     { 16, "YUV 422 (Not P)",     renderer_YUV }, /* 7,  Supported */
 126     { 16, "YUYV (Not P)",        renderer_YUV }, /* 8,  Supported */
 127     { 16, "UYVY (Not P)",        renderer_YUV }, /* 9,  Supported */
 128     { 16, "YUV 420 (Not P)", NULL }, /* 10, Not supported, if I had to guess it's YYUYYV */
 129     { 12, "YUV 411 (Not P)",     renderer_YUV }, /* 11, Supported */
 130     {  0, "Raw capturing (BT848)",       NULL }, /* 12, Don't support  */
 131     { 16, "YUV 422 (Planar)",    renderer_YUV }, /* 13, Supported */
 132     { 12, "YUV 411 (Planar)",    renderer_YUV }, /* 14, Supported */
 133     { 12, "YUV 420 (Planar)",    renderer_YUV }, /* 15, Supported */
 134     { 10, "YUV 410 (Planar)",    renderer_YUV }, /* 16, Supported */
 135     /* FIXME: add YUV420 support */
 136     {  0, NULL,                          NULL },
 137 };
 138
 139 const int fallback_V4l[] = { 4, 5, 7, 8, 9, 13, 15, 14, 16, 11, -1 };
 140 /* Fallback: First try raw formats (Should try yuv first perhaps?), then yuv */
 141
 142 /* static const Capture defbox; */
 143
 144 static int xioctl(int fd, int request, void * arg)
 145 {
 146     int r;
 147
 148     do {
 149         r = ioctl (fd, request, arg);
 150     } while (-1 == r && EINTR == errno);
 151
 152     return r;
 153 }
 154
 155 /* Prepare the capture buffers */
 156 static HRESULT V4l_Prepare(Capture *capBox)
 157 {
 158     TRACE("%p: Preparing for %dx%d resolution\n", capBox, capBox->width, capBox->height);
 159
 160     /* Try mmap */
 161     capBox->mmap = 0;
 162     if (xioctl(capBox->fd, VIDIOCGMBUF, &capBox->gb_buffers) != -1 &&
 163         capBox->gb_buffers.frames)
 164     {
 165         capBox->buffers = capBox->gb_buffers.frames;
 166         if (capBox->gb_buffers.frames > 1)
 167             capBox->buffers = 1;
 168         TRACE("%p: Using %d/%d buffers\n", capBox,
 169               capBox->buffers, capBox->gb_buffers.frames);
 170
 171         capBox->pmap = mmap( 0, capBox->gb_buffers.size, PROT_READ|PROT_WRITE,
 172                              MAP_SHARED, capBox->fd, 0 );
 173         if (capBox->pmap != MAP_FAILED)
 174         {
 175             int i;
 176
 177             capBox->grab_buf = CoTaskMemAlloc(sizeof(struct video_mmap) * capBox->buffers);
 178             if (!capBox->grab_buf)
 179             {
 180                 munmap(capBox->pmap, capBox->gb_buffers.size);
 181                 return E_OUTOFMEMORY;
 182             }
 183
 184             /* Setup mmap capture buffers. */
 185             for (i = 0; i < capBox->buffers; i++)
 186             {
 187                 capBox->grab_buf[i].format = capBox->pict.palette;
 188                 capBox->grab_buf[i].frame = i;
 189                 capBox->grab_buf[i].width = capBox->width;
 190                 capBox->grab_buf[i].height = capBox->height;
 191             }
 192             capBox->mmap = 1;
 193         }
 194     }
 195     if (!capBox->mmap)
 196     {
 197         capBox->buffers = 1;
 198         capBox->imagesize = renderlist_V4l[capBox->pict.palette].depth *
 199                                 capBox->height * capBox->width / 8;
 200         capBox->grab_data = CoTaskMemAlloc(capBox->imagesize);
 201         if (!capBox->grab_data)
 202             return E_OUTOFMEMORY;
 203     }
 204     TRACE("Using mmap: %d\n", capBox->mmap);
 205     return S_OK;
 206 }
 207
 208 static void V4l_Unprepare(Capture *capBox)
 209 {
 210     if (capBox->mmap)
 211     {
 212         for (capBox->curframe = 0; capBox->curframe < capBox->buffers; capBox->curframe++)
 213             xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]);
 214         munmap(capBox->pmap, capBox->gb_buffers.size);
 215         CoTaskMemFree(capBox->grab_buf);
 216     }
 217     else
 218         CoTaskMemFree(capBox->grab_data);
 219 }
 220
 221 HRESULT qcap_driver_destroy(Capture *capBox)
 222 {
 223     TRACE("%p\n", capBox);
 224
 225     if( capBox->fd != -1 )
 226         close(capBox->fd);
 227     DeleteCriticalSection(&capBox->CritSect);
 228     CoTaskMemFree(capBox);
 229     return S_OK;
 230 }
 231
 232 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
 233 {
 234     int newheight, newwidth;
 235     struct video_window window;
 236     VIDEOINFOHEADER *format;
 237
 238     TRACE("%p\n", capBox);
 239
 240     format = (VIDEOINFOHEADER *) mT->pbFormat;
 241     if (format->bmiHeader.biBitCount != 24 ||
 242         format->bmiHeader.biCompression != BI_RGB)
 243     {
 244         FIXME("unsupported media type %d %ld\n", format->bmiHeader.biBitCount,
 245               format->bmiHeader.biCompression );
 246         return VFW_E_INVALIDMEDIATYPE;
 247     }
 248
 249     newwidth = format->bmiHeader.biWidth;
 250     newheight = format->bmiHeader.biHeight;
 251
 252     TRACE("%p -> (%p) - %d %d\n", capBox, mT, newwidth, newheight);
 253
 254     if (capBox->height == newheight && capBox->width == newwidth)
 255         return S_OK;
 256
 257     if(-1 == xioctl(capBox->fd, VIDIOCGWIN, &window))
 258     {
 259         ERR("ioctl(VIDIOCGWIN) failed (%d)\n", errno);
 260         return E_FAIL;
 261     }
 262     window.width = newwidth;
 263     window.height = newheight;
 264     if (xioctl(capBox->fd, VIDIOCSWIN, &window) == -1)
 265     {
 266         TRACE("using software resize: %dx%d -> %dx%d\n",
 267                window.width, window.height, capBox->width, capBox->height);
 268         capBox->swresize = TRUE;
 269     }
 270     else
 271     {
 272         capBox->height = window.height;
 273         capBox->width = window.width;
 274         capBox->swresize = FALSE;
 275     }
 276     capBox->outputwidth = window.width;
 277     capBox->outputheight = window.height;
 278     return S_OK;
 279 }
 280
 281 HRESULT qcap_driver_get_format(Capture *capBox, AM_MEDIA_TYPE ** mT)
 282 {
 283     VIDEOINFOHEADER *vi;
 284
 285     mT[0] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 286     if (!mT[0])
 287         return E_OUTOFMEMORY;
 288     vi = CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));
 289     mT[0]->cbFormat = sizeof(VIDEOINFOHEADER);
 290     if (!vi)
 291     {
 292         CoTaskMemFree(mT[0]);
 293         return E_OUTOFMEMORY;
 294     }
 295     memcpy(&mT[0]->majortype, &MEDIATYPE_Video, sizeof(GUID));
 296     memcpy(&mT[0]->subtype, &MEDIASUBTYPE_RGB24, sizeof(GUID));
 297     memcpy(&mT[0]->formattype, &FORMAT_VideoInfo, sizeof(GUID));
 298     mT[0]->bFixedSizeSamples = TRUE;
 299     mT[0]->bTemporalCompression = FALSE;
 300     mT[0]->pUnk = NULL;
 301     mT[0]->lSampleSize = capBox->outputwidth * capBox->outputheight * capBox->bitDepth / 8;
 302     TRACE("Output format: %dx%d - %d bits = %lu KB\n", capBox->outputwidth,
 303           capBox->outputheight, capBox->bitDepth, mT[0]->lSampleSize/1024);
 304     vi->rcSource.left = 0; vi->rcSource.top = 0;
 305     vi->rcTarget.left = 0; vi->rcTarget.top = 0;
 306     vi->rcSource.right = capBox->width; vi->rcSource.bottom = capBox->height;
 307     vi->rcTarget.right = capBox->outputwidth; vi->rcTarget.bottom = capBox->outputheight;
 308     vi->dwBitRate = capBox->fps * mT[0]->lSampleSize;
 309     vi->dwBitErrorRate = 0;
 310     vi->AvgTimePerFrame = (LONGLONG)10000000.0 / (LONGLONG)capBox->fps;
 311     vi->bmiHeader.biSize = 40;
 312     vi->bmiHeader.biWidth = capBox->outputwidth;
 313     vi->bmiHeader.biHeight = capBox->outputheight;
 314     vi->bmiHeader.biPlanes = 1;
 315     vi->bmiHeader.biBitCount = 24;
 316     vi->bmiHeader.biCompression = BI_RGB;
 317     vi->bmiHeader.biSizeImage = mT[0]->lSampleSize;
 318     vi->bmiHeader.biClrUsed = vi->bmiHeader.biClrImportant = 0;
 319     vi->bmiHeader.biXPelsPerMeter = 100;
 320     vi->bmiHeader.biYPelsPerMeter = 100;
 321     mT[0]->pbFormat = (void *)vi;
 322     dump_AM_MEDIA_TYPE(mT[0]);
 323     return S_OK;
 324 }
 325
 326 HRESULT qcap_driver_get_prop_range( Capture *capBox, long Property, long *pMin,
 327             long *pMax, long *pSteppingDelta, long *pDefault, long *pCapsFlags )
 328 {
 329     TRACE("%p -> %ld %p %p %p %p %p\n", capBox, Property,
 330           pMin, pMax, pSteppingDelta, pDefault, pCapsFlags);
 331
 332     switch (Property)
 333     {
 334     case VideoProcAmp_Brightness:
 335         *pDefault = capBox->dbrightness;
 336         break;
 337     case VideoProcAmp_Contrast:
 338         *pDefault = capBox->dcontrast;
 339         break;
 340     case VideoProcAmp_Hue:
 341         *pDefault = capBox->dhue;
 342         break;
 343     case VideoProcAmp_Saturation:
 344         *pDefault = capBox->dcolour;
 345         break;
 346     default:
 347         FIXME("Not implemented %ld\n", Property);
 348         return E_NOTIMPL;
 349     }
 350     *pMin = 0;
 351     *pMax = 65535;
 352     *pSteppingDelta = 65536/256;
 353     *pCapsFlags = VideoProcAmp_Flags_Manual;
 354     return S_OK;
 355 }
 356
 357 HRESULT qcap_driver_get_prop( Capture *capBox, long Property, long *lValue, long *Flags )
 358 {
 359     TRACE("%p -> %ld %p %p\n", capBox, Property, lValue, Flags);
 360
 361     switch (Property)
 362     {
 363     case VideoProcAmp_Brightness:
 364         *lValue = capBox->pict.brightness;
 365         break;
 366     case VideoProcAmp_Contrast:
 367         *lValue = capBox->pict.contrast;
 368         break;
 369     case VideoProcAmp_Hue:
 370         *lValue = capBox->pict.hue;
 371         break;
 372     case VideoProcAmp_Saturation:
 373         *lValue = capBox->pict.colour;
 374         break;
 375     default:
 376         FIXME("Not implemented %ld\n", Property);
 377         return E_NOTIMPL;
 378     }
 379     *Flags = VideoProcAmp_Flags_Manual;
 380     return S_OK;
 381 }
 382
 383 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
 384 {
 385     TRACE("%p -> %ld %ld %ld\n", capBox, Property, lValue, Flags);
 386
 387     switch (Property)
 388     {
 389     case VideoProcAmp_Brightness:
 390         capBox->pict.brightness = lValue;
 391         break;
 392     case VideoProcAmp_Contrast:
 393         capBox->pict.contrast = lValue;
 394         break;
 395     case VideoProcAmp_Hue:
 396         capBox->pict.hue = lValue;
 397         break;
 398     case VideoProcAmp_Saturation:
 399         capBox->pict.colour = lValue;
 400         break;
 401     default:
 402         FIXME("Not implemented %ld\n", Property);
 403         return E_NOTIMPL;
 404     }
 405
 406     if (xioctl(capBox->fd, VIDIOCSPICT, &capBox->pict) == -1)
 407     {
 408         ERR("ioctl(VIDIOCSPICT) failed (%d)\n",errno);
 409         return E_FAIL;
 410     }
 411     return S_OK;
 412 }
 413
 414 static void renderer_RGB(Capture *capBox, LPBYTE bufferin, LPBYTE stream)
 415 {
 416     int depth = renderlist_V4l[capBox->pict.palette].depth;
 417     int size = capBox->height * capBox->width * depth / 8;
 418     int pointer, offset;
 419
 420     switch (depth)
 421     {
 422     case 24:
 423         memcpy(bufferin, stream, size);
 424         break;
 425     case 32:
 426         pointer = 0;
 427         offset = 1;
 428         while (pointer + offset <= size)
 429         {
 430             bufferin[pointer] = stream[pointer + offset];
 431             pointer++;
 432             bufferin[pointer] = stream[pointer + offset];
 433             pointer++;
 434             bufferin[pointer] = stream[pointer + offset];
 435             pointer++;
 436             offset++;
 437         }
 438         break;
 439     default:
 440         ERR("Unknown bit depth %d\n", depth);
 441         return;
 442     }
 443 }
 444
 445 static void renderer_YUV(Capture *capBox, LPBYTE bufferin, LPBYTE stream)
 446 {
 447     enum YUV_Format format;
 448
 449     switch (capBox->pict.palette)
 450     {
 451     case  7: /* YUV422  -  same as YUYV */
 452     case  8: /* YUYV    */
 453         format = YUYV;
 454         break;
 455     case  9: /* UYVY    */
 456         format = UYVY;
 457         break;
 458     case 11: /* YUV411  */
 459         format = UYYVYY;
 460         break;
 461     case 13: /* YUV422P */
 462         format = YUVP_421;
 463         break;
 464     case 14: /* YUV411P */
 465         format = YUVP_441;
 466         break;
 467     case 15: /* YUV420P */
 468         format = YUVP_422;
 469         break;
 470     case 16: /* YUV410P */
 471         format = YUVP_444;
 472         break;
 473     default:
 474         ERR("Unknown palette %d\n", capBox->pict.palette);
 475         return;
 476     }
 477     YUV_To_RGB24(format, bufferin, stream, capBox->width, capBox->height);
 478 }
 479
 480 static void Resize(Capture * capBox, LPBYTE output, LPBYTE input)
 481 {
 482     /* the whole image needs to be reversed,
 483        because the dibs are messed up in windows */
 484     if (!capBox->swresize)
 485     {
 486         int depth = capBox->bitDepth / 8;
 487         int inoffset = 0, outoffset = capBox->height * capBox->width * depth;
 488         int ow = capBox->width * depth;
 489         while (outoffset > 0)
 490         {
 491             int x;
 492             outoffset -= ow;
 493             for (x = 0; x < ow; x++)
 494                 output[outoffset + x] = input[inoffset + x];
 495             inoffset += ow;
 496         }
 497     }
 498     else
 499     {
 500         HDC dc_s, dc_d;
 501         HBITMAP bmp_s, bmp_d;
 502         int depth = capBox->bitDepth / 8;
 503         int inoffset = 0, outoffset = (capBox->outputheight) * capBox->outputwidth * depth;
 504         int ow = capBox->outputwidth * depth;
 505         LPBYTE myarray;
 506
 507         /* FIXME: Improve software resizing: add error checks and optimize */
 508
 509         myarray = CoTaskMemAlloc(capBox->outputwidth * capBox->outputheight * depth);
 510         dc_s = CreateCompatibleDC(NULL);
 511         dc_d = CreateCompatibleDC(NULL);
 512         bmp_s = CreateBitmap(capBox->width, capBox->height, 1, capBox->bitDepth, input);
 513         bmp_d = CreateBitmap(capBox->outputwidth, capBox->outputheight, 1, capBox->bitDepth, NULL);
 514         SelectObject(dc_s, bmp_s);
 515         SelectObject(dc_d, bmp_d);
 516         StretchBlt(dc_d, 0, 0, capBox->outputwidth, capBox->outputheight,
 517                    dc_s, 0, 0, capBox->width, capBox->height, SRCCOPY);
 518         GetBitmapBits(bmp_d, capBox->outputwidth * capBox->outputheight * depth, myarray);
 519         while (outoffset > 0)
 520         {
 521             int i;
 522
 523             outoffset -= ow;
 524             for (i = 0; i < ow; i++)
 525                 output[outoffset + i] = myarray[inoffset + i];
 526             inoffset += ow;
 527         }
 528         CoTaskMemFree(myarray);
 529         DeleteObject(dc_s);
 530         DeleteObject(dc_d);
 531         DeleteObject(bmp_s);
 532         DeleteObject(bmp_d);
 533     }
 534 }
 535
 536 static void V4l_GetFrame(Capture * capBox, unsigned char ** pInput)
 537 {
 538     if (capBox->pmap)
 539     {
 540         if (xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]) == -1)
 541             WARN("Syncing ioctl failed: %d\n", errno);
 542
 543         *pInput = capBox->pmap + capBox->gb_buffers.offsets[capBox->curframe];
 544     }
 545     else
 546     {
 547         int retval;
 548         while ((retval = read(capBox->fd, capBox->grab_data, capBox->imagesize)) == -1)
 549             if (errno != EAGAIN) break;
 550         if (retval == -1)
 551             WARN("Error occurred while reading from device: %s\n", strerror(errno));
 552         *pInput = (unsigned char*) capBox->grab_data;
 553     }
 554 }
 555
 556 static void V4l_FreeFrame(Capture * capBox)
 557 {
 558     TRACE("\n");
 559     if (capBox->mmap)
 560     {
 561         if (xioctl(capBox->fd, VIDIOCMCAPTURE, &capBox->grab_buf[capBox->curframe]) == -1)
 562            ERR("Freeing frame for capture failed: %s\n", strerror(errno));
 563     }
 564     if (++capBox->curframe == capBox->buffers)
 565         capBox->curframe = 0;
 566 }
 567
 568 static DWORD WINAPI ReadThread(LPVOID lParam)
 569 {
 570     Capture * capBox = (Capture *)lParam;
 571     HRESULT hr;
 572     IMediaSample *pSample = NULL;
 573     unsigned long framecount = 0;
 574     unsigned char *pTarget, *pInput, *pOutput;
 575
 576     hr = V4l_Prepare(capBox);
 577     if (FAILED(hr))
 578         goto fail;
 579
 580     pOutput = CoTaskMemAlloc(capBox->width * capBox->height * capBox->bitDepth / 8);
 581     capBox->curframe = 0;
 582     do {
 583         V4l_FreeFrame(capBox);
 584     } while (capBox->curframe != 0);
 585
 586     while (1)
 587     {
 588         EnterCriticalSection(&capBox->CritSect);
 589         if (capBox->stopped)
 590             break;
 591         hr = OutputPin_GetDeliveryBuffer((OutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
 592         if (SUCCEEDED(hr))
 593         {
 594             int len;
 595
 596             if (!capBox->swresize)
 597                 len = capBox->height * capBox->width * capBox->bitDepth / 8;
 598             else
 599                 len = capBox->outputheight * capBox->outputwidth * capBox->bitDepth / 8;
 600             IMediaSample_SetActualDataLength(pSample, len);
 601
 602             len = IMediaSample_GetActualDataLength(pSample);
 603             TRACE("Data length: %d KB\n", len / 1024);
 604
 605             IMediaSample_GetPointer(pSample, &pTarget);
 606             /* FIXME: Check return values.. */
 607             V4l_GetFrame(capBox, &pInput);
 608             capBox->renderer(capBox, pOutput, pInput);
 609             Resize(capBox, pTarget, pOutput);
 610             hr = OutputPin_SendSample((OutputPin *)capBox->pOut, pSample);
 611             TRACE("%p -> Frame %lu: %lx\n", capBox, ++framecount, hr);
 612             IMediaSample_Release(pSample);
 613             V4l_FreeFrame(capBox);
 614         }
 615         LeaveCriticalSection(&capBox->CritSect);
 616         if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
 617         {
 618             ERR("Received error: %lx\n", hr);
 619             goto cfail;
 620         }
 621     }
 622     LeaveCriticalSection(&capBox->CritSect);
 623     CoTaskMemFree(pOutput);
 624
 625     return 0;
 626
 627 cfail:
 628     CoTaskMemFree(pOutput);
 629     V4l_Unprepare(capBox);
 630     LeaveCriticalSection(&capBox->CritSect);
 631
 632 fail:
 633     capBox->thread = 0; capBox->stopped = 1;
 634     FIXME("Stop IFilterGraph\n");
 635     return 0;
 636 }
 637
 638 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
 639 {
 640     HANDLE thread;
 641     HRESULT hr;
 642
 643     TRACE("%p -> (%p)\n", capBox, state);
 644
 645     if (*state == State_Running) return S_OK;
 646
 647     EnterCriticalSection(&capBox->CritSect);
 648
 649     capBox->stopped = 0;
 650
 651     if (*state == State_Stopped)
 652     {
 653         *state = State_Running;
 654         if (!capBox->iscommitted++)
 655         {
 656             IMemAllocator * pAlloc = NULL;
 657             ALLOCATOR_PROPERTIES ap, actual;
 658             OutputPin *out;
 659
 660             ap.cBuffers = 3;
 661             if (!capBox->swresize)
 662                 ap.cbBuffer = capBox->width * capBox->height;
 663             else
 664                 ap.cbBuffer = capBox->outputwidth * capBox->outputheight;
 665             ap.cbBuffer = (ap.cbBuffer * capBox->bitDepth) / 8;
 666             ap.cbAlign = 1;
 667             ap.cbPrefix = 0;
 668
 669             out = (OutputPin *)capBox->pOut;
 670             hr = IMemInputPin_GetAllocator(out->pMemInputPin, &pAlloc);
 671
 672             if (SUCCEEDED(hr))
 673                 hr = IMemAllocator_SetProperties(pAlloc, &ap, &actual);
 674
 675             if (SUCCEEDED(hr))
 676                 hr = IMemAllocator_Commit(pAlloc);
 677
 678             if (pAlloc)
 679                 IMemAllocator_Release(pAlloc);
 680
 681             TRACE("Committing allocator: %lx\n", hr);
 682         }
 683
 684         thread = CreateThread(NULL, 0, ReadThread, capBox, 0, NULL);
 685         if (thread)
 686         {
 687             capBox->thread = thread;
 688             SetThreadPriority(thread, THREAD_PRIORITY_LOWEST);
 689             LeaveCriticalSection(&capBox->CritSect);
 690             return S_OK;
 691         }
 692         ERR("Creating thread failed.. %lx\n", GetLastError());
 693         LeaveCriticalSection(&capBox->CritSect);
 694         return E_FAIL;
 695     }
 696
 697     ResumeThread(capBox->thread);
 698     *state = State_Running;
 699     LeaveCriticalSection(&capBox->CritSect);
 700     return S_OK;
 701 }
 702
 703 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
 704 {
 705     TRACE("%p -> (%p)\n", capBox, state);
 706
 707     if (*state == State_Paused)
 708         return S_OK;
 709     if (*state == State_Stopped)
 710         qcap_driver_run(capBox, state);
 711
 712     EnterCriticalSection(&capBox->CritSect);
 713     *state = State_Paused;
 714     SuspendThread(capBox->thread);
 715     LeaveCriticalSection(&capBox->CritSect);
 716
 717     return S_OK;
 718 }
 719
 720 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
 721 {
 722     TRACE("%p -> (%p)\n", capBox, state);
 723
 724     if (*state == State_Stopped)
 725         return S_OK;
 726
 727     EnterCriticalSection(&capBox->CritSect);
 728
 729     if (capBox->thread)
 730     {
 731         if (*state == State_Paused)
 732             ResumeThread(capBox->thread);
 733         capBox->stopped = 1;
 734         capBox->thread = 0;
 735         if (capBox->iscommitted)
 736         {
 737             IMemInputPin *pMem = NULL;
 738             IMemAllocator * pAlloc = NULL;
 739             IPin *pConnect = NULL;
 740             HRESULT hr;
 741
 742             capBox->iscommitted = 0;
 743
 744             hr = IPin_ConnectedTo(capBox->pOut, &pConnect);
 745
 746             if (SUCCEEDED(hr))
 747                 hr = IPin_QueryInterface(pConnect, &IID_IMemInputPin, (void **) &pMem);
 748
 749             if (SUCCEEDED(hr))
 750                 hr = IMemInputPin_GetAllocator(pMem, &pAlloc);
 751
 752             if (SUCCEEDED(hr))
 753                 hr = IMemAllocator_Decommit(pAlloc);
 754
 755             if (pAlloc)
 756                 IMemAllocator_Release(pAlloc);
 757
 758             if (pMem)
 759                 IMemInputPin_Release(pMem);
 760
 761             if (pConnect)
 762                 IPin_Release(pConnect);
 763
 764             if (hr != S_OK && hr != VFW_E_NOT_COMMITTED)
 765                 WARN("Decommitting allocator: %lx\n", hr);
 766         }
 767         V4l_Unprepare(capBox);
 768     }
 769
 770     *state = State_Stopped;
 771     LeaveCriticalSection(&capBox->CritSect);
 772     return S_OK;
 773 }
 774
 775 Capture * qcap_driver_init( IPin *pOut, USHORT card )
 776 {
 777     Capture * capBox = NULL;
 778     char device[20];
 779     struct video_capability capa;
 780     struct video_picture pict;
 781     struct video_window window;
 782
 783     YUV_Init();
 784
 785     capBox = CoTaskMemAlloc(sizeof(Capture));
 786     if (!capBox)
 787         goto error;
 788
 789     /* capBox->vtbl = &defboxVtbl; */
 790
 791     InitializeCriticalSection( &capBox->CritSect );
 792
 793     sprintf(device, "/dev/video%i", card);
 794     TRACE("opening %s\n", device);
 795     capBox->fd = open(device, O_RDWR | O_NONBLOCK);
 796     if (capBox->fd == -1)
 797     {
 798         WARN("open failed (%d)\n", errno);
 799         goto error;
 800     }
 801
 802     memset(&capa, 0, sizeof(capa));
 803
 804     if (xioctl(capBox->fd, VIDIOCGCAP, &capa) == -1)
 805     {
 806         WARN("ioctl(VIDIOCGCAP) failed (%d)\n", errno);
 807         goto error;
 808     }
 809
 810     if (!(capa.type & VID_TYPE_CAPTURE))
 811     {
 812         WARN("not a video capture device\n");
 813         goto error;
 814     }
 815
 816     TRACE("%d inputs on %s\n", capa.channels, capa.name );
 817
 818     if (xioctl(capBox->fd, VIDIOCGPICT, &pict) == -1)
 819     {
 820         ERR("ioctl(VIDIOCGPICT) failed (%d)\n", errno );
 821         goto error;
 822     }
 823
 824     TRACE("depth %d palette %d (%s) hue %d color %d contrast %d\n",
 825           pict.depth, pict.palette, renderlist_V4l[pict.palette].name,
 826           pict.hue, pict.colour, pict.contrast );
 827
 828     capBox->dbrightness = pict.brightness;
 829     capBox->dcolour = pict.colour;
 830     capBox->dhue = pict.hue;
 831     capBox->dcontrast = pict.contrast;
 832
 833     if (!renderlist_V4l[pict.palette].renderer)
 834     {
 835         int palet = pict.palette, i;
 836
 837         TRACE("No renderer available for %s, falling back to defaults\n",
 838              renderlist_V4l[pict.palette].name);
 839         capBox->renderer = NULL;
 840         for (i = 0; fallback_V4l[i] >=0 ; i++)
 841         {
 842             int n = fallback_V4l[i];
 843
 844             if (renderlist_V4l[n].renderer == NULL)
 845                 continue;
 846
 847             pict.depth = renderlist_V4l[n].depth;
 848             pict.palette = n;
 849             if (xioctl(capBox->fd, VIDIOCSPICT, &pict) == -1)
 850             {
 851                 TRACE("Could not render with %s (%d)\n",
 852                       renderlist_V4l[n].name, n);
 853                 continue;
 854             }
 855             TRACE("using renderer %s (%d)\n",
 856                   renderlist_V4l[n].name, n);
 857             capBox->renderer = renderlist_V4l[n].renderer;
 858             break;
 859         }
 860
 861         if (!capBox->renderer)
 862         {
 863             ERR("video format %s isn't available\n",
 864                  renderlist_V4l[palet].name);
 865             goto error;
 866         }
 867     }
 868     else
 869     {
 870         TRACE("Using the suggested format\n");
 871         capBox->renderer = renderlist_V4l[pict.palette].renderer;
 872     }
 873     memcpy(&capBox->pict, &pict, sizeof(struct video_picture));
 874
 875     memset(&window, 0, sizeof(window));
 876     if (xioctl(capBox->fd, VIDIOCGWIN, &window) == -1)
 877     {
 878         WARN("VIDIOCGWIN failed (%d)\n", errno);
 879         goto error;
 880     }
 881
 882     capBox->height = capBox->outputheight = window.height;
 883     capBox->width = capBox->outputwidth = window.width;
 884     capBox->swresize = FALSE;
 885     capBox->bitDepth = 24;
 886     capBox->pOut = pOut;
 887     capBox->fps = 3;
 888     capBox->stopped = 0;
 889     capBox->curframe = 0;
 890     capBox->iscommitted = 0;
 891
 892     TRACE("format: %d bits - %d x %d\n", capBox->bitDepth, capBox->width, capBox->height);
 893
 894     return (Capture*) capBox;
 895
 896 error:
 897     if (capBox)
 898         qcap_driver_destroy( (Capture*) capBox );
 899
 900     return NULL;
 901 }
 902
 903 #else
 904
 905 Capture * qcap_driver_init( IPin *pOut, USHORT card )
 906 {
 907     const char msg[] =
 908         "The v4l headers were not available at compile time,\n"
 909         "so video capture support is not available.\n";
 910     MESSAGE(msg);
 911     return NULL;
 912 }
 913
 914 #define FAIL_WITH_ERR \
 915     ERR("v4l absent: shouldn't be called\n"); \
 916     return E_NOTIMPL
 917
 918 HRESULT qcap_driver_destroy(Capture *capBox)
 919 {
 920     FAIL_WITH_ERR;
 921 }
 922
 923 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
 924 {
 925     FAIL_WITH_ERR;
 926 }
 927
 928 HRESULT qcap_driver_get_format(Capture *capBox, AM_MEDIA_TYPE ** mT)
 929 {
 930     FAIL_WITH_ERR;
 931 }
 932
 933 HRESULT qcap_driver_get_prop_range( Capture *capBox, long Property, long *pMin,
 934           long *pMax, long *pSteppingDelta, long *pDefault, long *pCapsFlags )
 935 {
 936     FAIL_WITH_ERR;
 937 }
 938
 939 HRESULT qcap_driver_get_prop(Capture *capBox, long Property, long *lValue, long *Flags)
 940 {
 941     FAIL_WITH_ERR;
 942 }
 943
 944 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
 945 {
 946     FAIL_WITH_ERR;
 947 }
 948
 949 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
 950 {
 951     FAIL_WITH_ERR;
 952 }
 953
 954 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
 955 {
 956     FAIL_WITH_ERR;
 957 }
 958
 959 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
 960 {
 961     FAIL_WITH_ERR;
 962 }
 963
 964 #endif /* HAVE_LINUX_VIDEODEV_H */