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)(const Capture *, LPBYTE bufferin, const BYTE *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(const Capture *capBox, LPBYTE bufferin, const BYTE *stream);
 115 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *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 static 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     capBox->CritSect.DebugInfo->Spare[0] = 0;
 228     DeleteCriticalSection(&capBox->CritSect);
 229     CoTaskMemFree(capBox);
 230     return S_OK;
 231 }
 232
 233 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
 234 {
 235     int newheight, newwidth;
 236     struct video_window window;
 237     VIDEOINFOHEADER *format;
 238
 239     TRACE("%p\n", capBox);
 240
 241     format = (VIDEOINFOHEADER *) mT->pbFormat;
 242     if (format->bmiHeader.biBitCount != 24 ||
 243         format->bmiHeader.biCompression != BI_RGB)
 244     {
 245         FIXME("unsupported media type %d %d\n", format->bmiHeader.biBitCount,
 246               format->bmiHeader.biCompression );
 247         return VFW_E_INVALIDMEDIATYPE;
 248     }
 249
 250     newwidth = format->bmiHeader.biWidth;
 251     newheight = format->bmiHeader.biHeight;
 252
 253     TRACE("%p -> (%p) - %d %d\n", capBox, mT, newwidth, newheight);
 254
 255     if (capBox->height == newheight && capBox->width == newwidth)
 256         return S_OK;
 257
 258     if(-1 == xioctl(capBox->fd, VIDIOCGWIN, &window))
 259     {
 260         ERR("ioctl(VIDIOCGWIN) failed (%d)\n", errno);
 261         return E_FAIL;
 262     }
 263     window.width = newwidth;
 264     window.height = newheight;
 265     if (xioctl(capBox->fd, VIDIOCSWIN, &window) == -1)
 266     {
 267         TRACE("using software resize: %dx%d -> %dx%d\n",
 268                window.width, window.height, capBox->width, capBox->height);
 269         capBox->swresize = TRUE;
 270     }
 271     else
 272     {
 273         capBox->height = window.height;
 274         capBox->width = window.width;
 275         capBox->swresize = FALSE;
 276     }
 277     capBox->outputwidth = window.width;
 278     capBox->outputheight = window.height;
 279     return S_OK;
 280 }
 281
 282 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
 283 {
 284     VIDEOINFOHEADER *vi;
 285
 286     mT[0] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 287     if (!mT[0])
 288         return E_OUTOFMEMORY;
 289     vi = CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));
 290     mT[0]->cbFormat = sizeof(VIDEOINFOHEADER);
 291     if (!vi)
 292     {
 293         CoTaskMemFree(mT[0]);
 294         return E_OUTOFMEMORY;
 295     }
 296     mT[0]->majortype = MEDIATYPE_Video;
 297     mT[0]->subtype = MEDIASUBTYPE_RGB24;
 298     mT[0]->formattype = FORMAT_VideoInfo;
 299     mT[0]->bFixedSizeSamples = TRUE;
 300     mT[0]->bTemporalCompression = FALSE;
 301     mT[0]->pUnk = NULL;
 302     mT[0]->lSampleSize = capBox->outputwidth * capBox->outputheight * capBox->bitDepth / 8;
 303     TRACE("Output format: %dx%d - %d bits = %u KB\n", capBox->outputwidth,
 304           capBox->outputheight, capBox->bitDepth, mT[0]->lSampleSize/1024);
 305     vi->rcSource.left = 0; vi->rcSource.top = 0;
 306     vi->rcTarget.left = 0; vi->rcTarget.top = 0;
 307     vi->rcSource.right = capBox->width; vi->rcSource.bottom = capBox->height;
 308     vi->rcTarget.right = capBox->outputwidth; vi->rcTarget.bottom = capBox->outputheight;
 309     vi->dwBitRate = capBox->fps * mT[0]->lSampleSize;
 310     vi->dwBitErrorRate = 0;
 311     vi->AvgTimePerFrame = (LONGLONG)10000000.0 / (LONGLONG)capBox->fps;
 312     vi->bmiHeader.biSize = 40;
 313     vi->bmiHeader.biWidth = capBox->outputwidth;
 314     vi->bmiHeader.biHeight = capBox->outputheight;
 315     vi->bmiHeader.biPlanes = 1;
 316     vi->bmiHeader.biBitCount = 24;
 317     vi->bmiHeader.biCompression = BI_RGB;
 318     vi->bmiHeader.biSizeImage = mT[0]->lSampleSize;
 319     vi->bmiHeader.biClrUsed = vi->bmiHeader.biClrImportant = 0;
 320     vi->bmiHeader.biXPelsPerMeter = 100;
 321     vi->bmiHeader.biYPelsPerMeter = 100;
 322     mT[0]->pbFormat = (void *)vi;
 323     dump_AM_MEDIA_TYPE(mT[0]);
 324     return S_OK;
 325 }
 326
 327 HRESULT qcap_driver_get_prop_range( Capture *capBox, LONG Property, LONG *pMin,
 328             LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
 329 {
 330     TRACE("%p -> %d %p %p %p %p %p\n", capBox, Property,
 331           pMin, pMax, pSteppingDelta, pDefault, pCapsFlags);
 332
 333     switch (Property)
 334     {
 335     case VideoProcAmp_Brightness:
 336         *pDefault = capBox->dbrightness;
 337         break;
 338     case VideoProcAmp_Contrast:
 339         *pDefault = capBox->dcontrast;
 340         break;
 341     case VideoProcAmp_Hue:
 342         *pDefault = capBox->dhue;
 343         break;
 344     case VideoProcAmp_Saturation:
 345         *pDefault = capBox->dcolour;
 346         break;
 347     default:
 348         FIXME("Not implemented %d\n", Property);
 349         return E_NOTIMPL;
 350     }
 351     *pMin = 0;
 352     *pMax = 65535;
 353     *pSteppingDelta = 65536/256;
 354     *pCapsFlags = VideoProcAmp_Flags_Manual;
 355     return S_OK;
 356 }
 357
 358 HRESULT qcap_driver_get_prop( Capture *capBox, LONG Property, LONG *lValue, LONG *Flags )
 359 {
 360     TRACE("%p -> %d %p %p\n", capBox, Property, lValue, Flags);
 361
 362     switch (Property)
 363     {
 364     case VideoProcAmp_Brightness:
 365         *lValue = capBox->pict.brightness;
 366         break;
 367     case VideoProcAmp_Contrast:
 368         *lValue = capBox->pict.contrast;
 369         break;
 370     case VideoProcAmp_Hue:
 371         *lValue = capBox->pict.hue;
 372         break;
 373     case VideoProcAmp_Saturation:
 374         *lValue = capBox->pict.colour;
 375         break;
 376     default:
 377         FIXME("Not implemented %d\n", Property);
 378         return E_NOTIMPL;
 379     }
 380     *Flags = VideoProcAmp_Flags_Manual;
 381     return S_OK;
 382 }
 383
 384 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
 385 {
 386     TRACE("%p -> %ld %ld %ld\n", capBox, Property, lValue, Flags);
 387
 388     switch (Property)
 389     {
 390     case VideoProcAmp_Brightness:
 391         capBox->pict.brightness = lValue;
 392         break;
 393     case VideoProcAmp_Contrast:
 394         capBox->pict.contrast = lValue;
 395         break;
 396     case VideoProcAmp_Hue:
 397         capBox->pict.hue = lValue;
 398         break;
 399     case VideoProcAmp_Saturation:
 400         capBox->pict.colour = lValue;
 401         break;
 402     default:
 403         FIXME("Not implemented %ld\n", Property);
 404         return E_NOTIMPL;
 405     }
 406
 407     if (xioctl(capBox->fd, VIDIOCSPICT, &capBox->pict) == -1)
 408     {
 409         ERR("ioctl(VIDIOCSPICT) failed (%d)\n",errno);
 410         return E_FAIL;
 411     }
 412     return S_OK;
 413 }
 414
 415 static void renderer_RGB(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
 416 {
 417     int depth = renderlist_V4l[capBox->pict.palette].depth;
 418     int size = capBox->height * capBox->width * depth / 8;
 419     int pointer, offset;
 420
 421     switch (depth)
 422     {
 423     case 24:
 424         memcpy(bufferin, stream, size);
 425         break;
 426     case 32:
 427         pointer = 0;
 428         offset = 1;
 429         while (pointer + offset <= size)
 430         {
 431             bufferin[pointer] = stream[pointer + offset];
 432             pointer++;
 433             bufferin[pointer] = stream[pointer + offset];
 434             pointer++;
 435             bufferin[pointer] = stream[pointer + offset];
 436             pointer++;
 437             offset++;
 438         }
 439         break;
 440     default:
 441         ERR("Unknown bit depth %d\n", depth);
 442         return;
 443     }
 444 }
 445
 446 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
 447 {
 448     enum YUV_Format format;
 449
 450     switch (capBox->pict.palette)
 451     {
 452     case  7: /* YUV422  -  same as YUYV */
 453     case  8: /* YUYV    */
 454         format = YUYV;
 455         break;
 456     case  9: /* UYVY    */
 457         format = UYVY;
 458         break;
 459     case 11: /* YUV411  */
 460         format = UYYVYY;
 461         break;
 462     case 13: /* YUV422P */
 463         format = YUVP_421;
 464         break;
 465     case 14: /* YUV411P */
 466         format = YUVP_441;
 467         break;
 468     case 15: /* YUV420P */
 469         format = YUVP_422;
 470         break;
 471     case 16: /* YUV410P */
 472         format = YUVP_444;
 473         break;
 474     default:
 475         ERR("Unknown palette %d\n", capBox->pict.palette);
 476         return;
 477     }
 478     YUV_To_RGB24(format, bufferin, stream, capBox->width, capBox->height);
 479 }
 480
 481 static void Resize(const Capture * capBox, LPBYTE output, const BYTE *input)
 482 {
 483     /* the whole image needs to be reversed,
 484        because the dibs are messed up in windows */
 485     if (!capBox->swresize)
 486     {
 487         int depth = capBox->bitDepth / 8;
 488         int inoffset = 0, outoffset = capBox->height * capBox->width * depth;
 489         int ow = capBox->width * depth;
 490         while (outoffset > 0)
 491         {
 492             int x;
 493             outoffset -= ow;
 494             for (x = 0; x < ow; x++)
 495                 output[outoffset + x] = input[inoffset + x];
 496             inoffset += ow;
 497         }
 498     }
 499     else
 500     {
 501         HDC dc_s, dc_d;
 502         HBITMAP bmp_s, bmp_d;
 503         int depth = capBox->bitDepth / 8;
 504         int inoffset = 0, outoffset = (capBox->outputheight) * capBox->outputwidth * depth;
 505         int ow = capBox->outputwidth * depth;
 506         LPBYTE myarray;
 507
 508         /* FIXME: Improve software resizing: add error checks and optimize */
 509
 510         myarray = CoTaskMemAlloc(capBox->outputwidth * capBox->outputheight * depth);
 511         dc_s = CreateCompatibleDC(NULL);
 512         dc_d = CreateCompatibleDC(NULL);
 513         bmp_s = CreateBitmap(capBox->width, capBox->height, 1, capBox->bitDepth, input);
 514         bmp_d = CreateBitmap(capBox->outputwidth, capBox->outputheight, 1, capBox->bitDepth, NULL);
 515         SelectObject(dc_s, bmp_s);
 516         SelectObject(dc_d, bmp_d);
 517         StretchBlt(dc_d, 0, 0, capBox->outputwidth, capBox->outputheight,
 518                    dc_s, 0, 0, capBox->width, capBox->height, SRCCOPY);
 519         GetBitmapBits(bmp_d, capBox->outputwidth * capBox->outputheight * depth, myarray);
 520         while (outoffset > 0)
 521         {
 522             int i;
 523
 524             outoffset -= ow;
 525             for (i = 0; i < ow; i++)
 526                 output[outoffset + i] = myarray[inoffset + i];
 527             inoffset += ow;
 528         }
 529         CoTaskMemFree(myarray);
 530         DeleteObject(dc_s);
 531         DeleteObject(dc_d);
 532         DeleteObject(bmp_s);
 533         DeleteObject(bmp_d);
 534     }
 535 }
 536
 537 static void V4l_GetFrame(Capture * capBox, unsigned char ** pInput)
 538 {
 539     if (capBox->pmap)
 540     {
 541         if (xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]) == -1)
 542             WARN("Syncing ioctl failed: %d\n", errno);
 543
 544         *pInput = capBox->pmap + capBox->gb_buffers.offsets[capBox->curframe];
 545     }
 546     else
 547     {
 548         int retval;
 549         while ((retval = read(capBox->fd, capBox->grab_data, capBox->imagesize)) == -1)
 550             if (errno != EAGAIN) break;
 551         if (retval == -1)
 552             WARN("Error occurred while reading from device: %s\n", strerror(errno));
 553         *pInput = (unsigned char*) capBox->grab_data;
 554     }
 555 }
 556
 557 static void V4l_FreeFrame(Capture * capBox)
 558 {
 559     TRACE("\n");
 560     if (capBox->mmap)
 561     {
 562         if (xioctl(capBox->fd, VIDIOCMCAPTURE, &capBox->grab_buf[capBox->curframe]) == -1)
 563            ERR("Freeing frame for capture failed: %s\n", strerror(errno));
 564     }
 565     if (++capBox->curframe == capBox->buffers)
 566         capBox->curframe = 0;
 567 }
 568
 569 static DWORD WINAPI ReadThread(LPVOID lParam)
 570 {
 571     Capture * capBox = lParam;
 572     HRESULT hr;
 573     IMediaSample *pSample = NULL;
 574     unsigned long framecount = 0;
 575     unsigned char *pTarget, *pInput, *pOutput;
 576
 577     hr = V4l_Prepare(capBox);
 578     if (FAILED(hr))
 579         goto fail;
 580
 581     pOutput = CoTaskMemAlloc(capBox->width * capBox->height * capBox->bitDepth / 8);
 582     capBox->curframe = 0;
 583     do {
 584         V4l_FreeFrame(capBox);
 585     } while (capBox->curframe != 0);
 586
 587     while (1)
 588     {
 589         EnterCriticalSection(&capBox->CritSect);
 590         if (capBox->stopped)
 591             break;
 592         hr = OutputPin_GetDeliveryBuffer((OutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
 593         if (SUCCEEDED(hr))
 594         {
 595             int len;
 596
 597             if (!capBox->swresize)
 598                 len = capBox->height * capBox->width * capBox->bitDepth / 8;
 599             else
 600                 len = capBox->outputheight * capBox->outputwidth * capBox->bitDepth / 8;
 601             IMediaSample_SetActualDataLength(pSample, len);
 602
 603             len = IMediaSample_GetActualDataLength(pSample);
 604             TRACE("Data length: %d KB\n", len / 1024);
 605
 606             IMediaSample_GetPointer(pSample, &pTarget);
 607             /* FIXME: Check return values.. */
 608             V4l_GetFrame(capBox, &pInput);
 609             capBox->renderer(capBox, pOutput, pInput);
 610             Resize(capBox, pTarget, pOutput);
 611             hr = OutputPin_SendSample((OutputPin *)capBox->pOut, pSample);
 612             TRACE("%p -> Frame %lu: %x\n", capBox, ++framecount, hr);
 613             IMediaSample_Release(pSample);
 614             V4l_FreeFrame(capBox);
 615         }
 616         LeaveCriticalSection(&capBox->CritSect);
 617         if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
 618         {
 619             ERR("Received error: %x\n", hr);
 620             goto cfail;
 621         }
 622     }
 623     LeaveCriticalSection(&capBox->CritSect);
 624     CoTaskMemFree(pOutput);
 625
 626     return 0;
 627
 628 cfail:
 629     CoTaskMemFree(pOutput);
 630     V4l_Unprepare(capBox);
 631     LeaveCriticalSection(&capBox->CritSect);
 632
 633 fail:
 634     capBox->thread = 0; capBox->stopped = 1;
 635     FIXME("Stop IFilterGraph\n");
 636     return 0;
 637 }
 638
 639 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
 640 {
 641     HANDLE thread;
 642     HRESULT hr;
 643
 644     TRACE("%p -> (%p)\n", capBox, state);
 645
 646     if (*state == State_Running) return S_OK;
 647
 648     EnterCriticalSection(&capBox->CritSect);
 649
 650     capBox->stopped = 0;
 651
 652     if (*state == State_Stopped)
 653     {
 654         *state = State_Running;
 655         if (!capBox->iscommitted++)
 656         {
 657             IMemAllocator * pAlloc = NULL;
 658             ALLOCATOR_PROPERTIES ap, actual;
 659             OutputPin *out;
 660
 661             ap.cBuffers = 3;
 662             if (!capBox->swresize)
 663                 ap.cbBuffer = capBox->width * capBox->height;
 664             else
 665                 ap.cbBuffer = capBox->outputwidth * capBox->outputheight;
 666             ap.cbBuffer = (ap.cbBuffer * capBox->bitDepth) / 8;
 667             ap.cbAlign = 1;
 668             ap.cbPrefix = 0;
 669
 670             out = (OutputPin *)capBox->pOut;
 671             hr = IMemInputPin_GetAllocator(out->pMemInputPin, &pAlloc);
 672
 673             if (SUCCEEDED(hr))
 674                 hr = IMemAllocator_SetProperties(pAlloc, &ap, &actual);
 675
 676             if (SUCCEEDED(hr))
 677                 hr = IMemAllocator_Commit(pAlloc);
 678
 679             if (pAlloc)
 680                 IMemAllocator_Release(pAlloc);
 681
 682             TRACE("Committing allocator: %x\n", hr);
 683         }
 684
 685         thread = CreateThread(NULL, 0, ReadThread, capBox, 0, NULL);
 686         if (thread)
 687         {
 688             capBox->thread = thread;
 689             SetThreadPriority(thread, THREAD_PRIORITY_LOWEST);
 690             LeaveCriticalSection(&capBox->CritSect);
 691             return S_OK;
 692         }
 693         ERR("Creating thread failed.. %u\n", GetLastError());
 694         LeaveCriticalSection(&capBox->CritSect);
 695         return E_FAIL;
 696     }
 697
 698     ResumeThread(capBox->thread);
 699     *state = State_Running;
 700     LeaveCriticalSection(&capBox->CritSect);
 701     return S_OK;
 702 }
 703
 704 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
 705 {
 706     TRACE("%p -> (%p)\n", capBox, state);
 707
 708     if (*state == State_Paused)
 709         return S_OK;
 710     if (*state == State_Stopped)
 711         qcap_driver_run(capBox, state);
 712
 713     EnterCriticalSection(&capBox->CritSect);
 714     *state = State_Paused;
 715     SuspendThread(capBox->thread);
 716     LeaveCriticalSection(&capBox->CritSect);
 717
 718     return S_OK;
 719 }
 720
 721 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
 722 {
 723     TRACE("%p -> (%p)\n", capBox, state);
 724
 725     if (*state == State_Stopped)
 726         return S_OK;
 727
 728     EnterCriticalSection(&capBox->CritSect);
 729
 730     if (capBox->thread)
 731     {
 732         if (*state == State_Paused)
 733             ResumeThread(capBox->thread);
 734         capBox->stopped = 1;
 735         capBox->thread = 0;
 736         if (capBox->iscommitted)
 737         {
 738             IMemInputPin *pMem = NULL;
 739             IMemAllocator * pAlloc = NULL;
 740             IPin *pConnect = NULL;
 741             HRESULT hr;
 742
 743             capBox->iscommitted = 0;
 744
 745             hr = IPin_ConnectedTo(capBox->pOut, &pConnect);
 746
 747             if (SUCCEEDED(hr))
 748                 hr = IPin_QueryInterface(pConnect, &IID_IMemInputPin, (void **) &pMem);
 749
 750             if (SUCCEEDED(hr))
 751                 hr = IMemInputPin_GetAllocator(pMem, &pAlloc);
 752
 753             if (SUCCEEDED(hr))
 754                 hr = IMemAllocator_Decommit(pAlloc);
 755
 756             if (pAlloc)
 757                 IMemAllocator_Release(pAlloc);
 758
 759             if (pMem)
 760                 IMemInputPin_Release(pMem);
 761
 762             if (pConnect)
 763                 IPin_Release(pConnect);
 764
 765             if (hr != S_OK && hr != VFW_E_NOT_COMMITTED)
 766                 WARN("Decommitting allocator: %x\n", hr);
 767         }
 768         V4l_Unprepare(capBox);
 769     }
 770
 771     *state = State_Stopped;
 772     LeaveCriticalSection(&capBox->CritSect);
 773     return S_OK;
 774 }
 775
 776 Capture * qcap_driver_init( IPin *pOut, USHORT card )
 777 {
 778     Capture * capBox = NULL;
 779     char device[20];
 780     struct video_capability capa;
 781     struct video_picture pict;
 782     struct video_window window;
 783
 784     YUV_Init();
 785
 786     capBox = CoTaskMemAlloc(sizeof(Capture));
 787     if (!capBox)
 788         goto error;
 789
 790     /* capBox->vtbl = &defboxVtbl; */
 791
 792     InitializeCriticalSection( &capBox->CritSect );
 793     capBox->CritSect.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": Capture.CritSect");
 794
 795     sprintf(device, "/dev/video%i", card);
 796     TRACE("opening %s\n", device);
 797     capBox->fd = open(device, O_RDWR | O_NONBLOCK);
 798     if (capBox->fd == -1)
 799     {
 800         WARN("open failed (%d)\n", errno);
 801         goto error;
 802     }
 803
 804     memset(&capa, 0, sizeof(capa));
 805
 806     if (xioctl(capBox->fd, VIDIOCGCAP, &capa) == -1)
 807     {
 808         WARN("ioctl(VIDIOCGCAP) failed (%d)\n", errno);
 809         goto error;
 810     }
 811
 812     if (!(capa.type & VID_TYPE_CAPTURE))
 813     {
 814         WARN("not a video capture device\n");
 815         goto error;
 816     }
 817
 818     TRACE("%d inputs on %s\n", capa.channels, capa.name );
 819
 820     if (xioctl(capBox->fd, VIDIOCGPICT, &pict) == -1)
 821     {
 822         ERR("ioctl(VIDIOCGPICT) failed (%d)\n", errno );
 823         goto error;
 824     }
 825
 826     TRACE("depth %d palette %d (%s) hue %d color %d contrast %d\n",
 827           pict.depth, pict.palette, renderlist_V4l[pict.palette].name,
 828           pict.hue, pict.colour, pict.contrast );
 829
 830     capBox->dbrightness = pict.brightness;
 831     capBox->dcolour = pict.colour;
 832     capBox->dhue = pict.hue;
 833     capBox->dcontrast = pict.contrast;
 834
 835     if (!renderlist_V4l[pict.palette].renderer)
 836     {
 837         int palet = pict.palette, i;
 838
 839         TRACE("No renderer available for %s, falling back to defaults\n",
 840              renderlist_V4l[pict.palette].name);
 841         capBox->renderer = NULL;
 842         for (i = 0; fallback_V4l[i] >=0 ; i++)
 843         {
 844             int n = fallback_V4l[i];
 845
 846             if (renderlist_V4l[n].renderer == NULL)
 847                 continue;
 848
 849             pict.depth = renderlist_V4l[n].depth;
 850             pict.palette = n;
 851             if (xioctl(capBox->fd, VIDIOCSPICT, &pict) == -1)
 852             {
 853                 TRACE("Could not render with %s (%d)\n",
 854                       renderlist_V4l[n].name, n);
 855                 continue;
 856             }
 857             TRACE("using renderer %s (%d)\n",
 858                   renderlist_V4l[n].name, n);
 859             capBox->renderer = renderlist_V4l[n].renderer;
 860             break;
 861         }
 862
 863         if (!capBox->renderer)
 864         {
 865             ERR("video format %s isn't available\n",
 866                  renderlist_V4l[palet].name);
 867             goto error;
 868         }
 869     }
 870     else
 871     {
 872         TRACE("Using the suggested format\n");
 873         capBox->renderer = renderlist_V4l[pict.palette].renderer;
 874     }
 875     memcpy(&capBox->pict, &pict, sizeof(struct video_picture));
 876
 877     memset(&window, 0, sizeof(window));
 878     if (xioctl(capBox->fd, VIDIOCGWIN, &window) == -1)
 879     {
 880         WARN("VIDIOCGWIN failed (%d)\n", errno);
 881         goto error;
 882     }
 883
 884     capBox->height = capBox->outputheight = window.height;
 885     capBox->width = capBox->outputwidth = window.width;
 886     capBox->swresize = FALSE;
 887     capBox->bitDepth = 24;
 888     capBox->pOut = pOut;
 889     capBox->fps = 3;
 890     capBox->stopped = 0;
 891     capBox->curframe = 0;
 892     capBox->iscommitted = 0;
 893
 894     TRACE("format: %d bits - %d x %d\n", capBox->bitDepth, capBox->width, capBox->height);
 895
 896     return capBox;
 897
 898 error:
 899     if (capBox)
 900         qcap_driver_destroy( capBox );
 901
 902     return NULL;
 903 }
 904
 905 #else
 906
 907 Capture * qcap_driver_init( IPin *pOut, USHORT card )
 908 {
 909     const char msg[] =
 910         "The v4l headers were not available at compile time,\n"
 911         "so video capture support is not available.\n";
 912     MESSAGE(msg);
 913     return NULL;
 914 }
 915
 916 #define FAIL_WITH_ERR \
 917     ERR("v4l absent: shouldn't be called\n"); \
 918     return E_NOTIMPL
 919
 920 HRESULT qcap_driver_destroy(Capture *capBox)
 921 {
 922     FAIL_WITH_ERR;
 923 }
 924
 925 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
 926 {
 927     FAIL_WITH_ERR;
 928 }
 929
 930 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
 931 {
 932     FAIL_WITH_ERR;
 933 }
 934
 935 HRESULT qcap_driver_get_prop_range( Capture *capBox, LONG Property, LONG *pMin,
 936           LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
 937 {
 938     FAIL_WITH_ERR;
 939 }
 940
 941 HRESULT qcap_driver_get_prop(Capture *capBox, LONG Property, LONG *lValue, LONG *Flags)
 942 {
 943     FAIL_WITH_ERR;
 944 }
 945
 946 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
 947 {
 948     FAIL_WITH_ERR;
 949 }
 950
 951 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
 952 {
 953     FAIL_WITH_ERR;
 954 }
 955
 956 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
 957 {
 958     FAIL_WITH_ERR;
 959 }
 960
 961 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
 962 {
 963     FAIL_WITH_ERR;
 964 }
 965
 966 #endif /* HAVE_LINUX_VIDEODEV_H */