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 #include "wine/library.h"
  28
  29 #define NONAMELESSSTRUCT
  30 #define NONAMELESSUNION
  31 #define COBJMACROS
  32
  33 #include <stdarg.h>
  34 #include "windef.h"
  35 #include "winbase.h"
  36 #include "wtypes.h"
  37 #include "wingdi.h"
  38 #include "winuser.h"
  39 #include "dshow.h"
  40 #include "vfwmsgs.h"
  41 #include "amvideo.h"
  42 #include "wine/debug.h"
  43
  44 #include "capture.h"
  45 #include "qcap_main.h"
  46 #include "pin.h"
  47
  48 #include <stdio.h>
  49 #include <fcntl.h>
  50
  51 #ifdef HAVE_SYS_IOCTL_H
  52 #include <sys/ioctl.h>
  53 #endif
  54 #ifdef HAVE_SYS_MMAN_H
  55 #include <sys/mman.h>
  56 #endif
  57 #ifdef HAVE_SYS_ERRNO_H
  58 #include <sys/errno.h>
  59 #endif
  60 #ifdef HAVE_SYS_TIME_H
  61 #include <sys/time.h>
  62 #endif
  63 #ifdef HAVE_ASM_TYPES_H
  64 #include <asm/types.h>
  65 #endif
  66 #ifdef HAVE_LINUX_VIDEODEV_H
  67 #include <linux/videodev.h>
  68 #endif
  69 #ifdef HAVE_UNISTD_H
  70 #include <unistd.h>
  71 #endif
  72
  73 WINE_DEFAULT_DEBUG_CHANNEL(qcap_v4l);
  74
  75 #ifdef HAVE_LINUX_VIDEODEV_H
  76
  77 static typeof(open) *video_open = open;
  78 static typeof(close) *video_close = close;
  79 static typeof(ioctl) *video_ioctl = ioctl;
  80 static typeof(read) *video_read = read;
  81 static typeof(mmap) *video_mmap = mmap;
  82 static typeof(munmap) *video_munmap = munmap;
  83
  84 static void video_init(void)
  85 {
  86 #ifdef SONAME_LIBV4L1
  87     static void *video_lib;
  88
  89     if (video_lib)
  90         return;
  91     video_lib = wine_dlopen(SONAME_LIBV4L1, RTLD_NOW, NULL, 0);
  92     if (!video_lib)
  93         return;
  94     video_open = wine_dlsym(video_lib, "v4l1_open", NULL, 0);
  95     video_close = wine_dlsym(video_lib, "v4l1_close", NULL, 0);
  96     video_ioctl = wine_dlsym(video_lib, "v4l1_ioctl", NULL, 0);
  97     video_read = wine_dlsym(video_lib, "v4l1_read", NULL, 0);
  98     video_mmap = wine_dlsym(video_lib, "v4l1_mmap", NULL, 0);
  99     video_munmap = wine_dlsym(video_lib, "v4l1_munmap", NULL, 0);
 100 #endif
 101 }
 102
 103 typedef void (* Renderer)(const Capture *, LPBYTE bufferin, const BYTE *stream);
 104
 105 struct _Capture
 106 {
 107     UINT width, height, bitDepth, fps, outputwidth, outputheight;
 108     BOOL swresize;
 109
 110     CRITICAL_SECTION CritSect;
 111
 112     IPin *pOut;
 113     int fd, mmap;
 114     int iscommitted, stopped;
 115     struct video_picture pict;
 116     int dbrightness, dhue, dcolour, dcontrast;
 117
 118     /* mmap (V4l1) */
 119     struct video_mmap *grab_buf;
 120     struct video_mbuf gb_buffers;
 121     unsigned char *pmap;
 122     int buffers;
 123
 124     /* read (V4l1) */
 125     int imagesize;
 126     char * grab_data;
 127
 128     int curframe;
 129
 130     HANDLE thread;
 131     Renderer renderer;
 132 };
 133
 134 struct renderlist
 135 {
 136     int depth;
 137     const char* name;
 138     Renderer renderer;
 139 };
 140
 141 static void renderer_RGB(const Capture *capBox, LPBYTE bufferin, const BYTE *stream);
 142 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *stream);
 143
 144 static const struct renderlist renderlist_V4l[] = {
 145     {  0, "NULL renderer",               NULL },
 146     {  8, "Gray scales",                 NULL }, /* 1,  Don't support  */
 147     {  0, "High 240 cube (BT848)",       NULL }, /* 2,  Don't support  */
 148     { 16, "16 bit RGB (565)",            NULL }, /* 3,  Don't support  */
 149     { 24, "24 bit RGB values",   renderer_RGB }, /* 4,  Supported,     */
 150     { 32, "32 bit RGB values",   renderer_RGB }, /* 5,  Supported      */
 151     { 16, "15 bit RGB (555)",            NULL }, /* 6,  Don't support  */
 152     { 16, "YUV 422 (Not P)",     renderer_YUV }, /* 7,  Supported */
 153     { 16, "YUYV (Not P)",        renderer_YUV }, /* 8,  Supported */
 154     { 16, "UYVY (Not P)",        renderer_YUV }, /* 9,  Supported */
 155     { 16, "YUV 420 (Not P)", NULL }, /* 10, Not supported, if I had to guess it's YYUYYV */
 156     { 12, "YUV 411 (Not P)",     renderer_YUV }, /* 11, Supported */
 157     {  0, "Raw capturing (BT848)",       NULL }, /* 12, Don't support  */
 158     { 16, "YUV 422 (Planar)",    renderer_YUV }, /* 13, Supported */
 159     { 12, "YUV 411 (Planar)",    renderer_YUV }, /* 14, Supported */
 160     { 12, "YUV 420 (Planar)",    renderer_YUV }, /* 15, Supported */
 161     { 10, "YUV 410 (Planar)",    renderer_YUV }, /* 16, Supported */
 162     /* FIXME: add YUV420 support */
 163     {  0, NULL,                          NULL },
 164 };
 165
 166 static const int fallback_V4l[] = { 4, 5, 7, 8, 9, 13, 15, 14, 16, 11, -1 };
 167 /* Fallback: First try raw formats (Should try yuv first perhaps?), then yuv */
 168
 169 /* static const Capture defbox; */
 170
 171 static int xioctl(int fd, int request, void * arg)
 172 {
 173     int r;
 174
 175     do {
 176         r = video_ioctl (fd, request, arg);
 177     } while (-1 == r && EINTR == errno);
 178
 179     return r;
 180 }
 181
 182 /* Prepare the capture buffers */
 183 static HRESULT V4l_Prepare(Capture *capBox)
 184 {
 185     TRACE("%p: Preparing for %dx%d resolution\n", capBox, capBox->width, capBox->height);
 186
 187     /* Try mmap */
 188     capBox->mmap = 0;
 189     if (xioctl(capBox->fd, VIDIOCGMBUF, &capBox->gb_buffers) != -1 &&
 190         capBox->gb_buffers.frames)
 191     {
 192         capBox->buffers = capBox->gb_buffers.frames;
 193         if (capBox->gb_buffers.frames > 1)
 194             capBox->buffers = 1;
 195         TRACE("%p: Using %d/%d buffers\n", capBox,
 196               capBox->buffers, capBox->gb_buffers.frames);
 197
 198         capBox->pmap = video_mmap( 0, capBox->gb_buffers.size, PROT_READ|PROT_WRITE,
 199                                    MAP_SHARED, capBox->fd, 0 );
 200         if (capBox->pmap != MAP_FAILED)
 201         {
 202             int i;
 203
 204             capBox->grab_buf = CoTaskMemAlloc(sizeof(struct video_mmap) * capBox->buffers);
 205             if (!capBox->grab_buf)
 206             {
 207                 video_munmap(capBox->pmap, capBox->gb_buffers.size);
 208                 return E_OUTOFMEMORY;
 209             }
 210
 211             /* Setup mmap capture buffers. */
 212             for (i = 0; i < capBox->buffers; i++)
 213             {
 214                 capBox->grab_buf[i].format = capBox->pict.palette;
 215                 capBox->grab_buf[i].frame = i;
 216                 capBox->grab_buf[i].width = capBox->width;
 217                 capBox->grab_buf[i].height = capBox->height;
 218             }
 219             capBox->mmap = 1;
 220         }
 221     }
 222     if (!capBox->mmap)
 223     {
 224         capBox->buffers = 1;
 225         capBox->imagesize = renderlist_V4l[capBox->pict.palette].depth *
 226                                 capBox->height * capBox->width / 8;
 227         capBox->grab_data = CoTaskMemAlloc(capBox->imagesize);
 228         if (!capBox->grab_data)
 229             return E_OUTOFMEMORY;
 230     }
 231     TRACE("Using mmap: %d\n", capBox->mmap);
 232     return S_OK;
 233 }
 234
 235 static void V4l_Unprepare(Capture *capBox)
 236 {
 237     if (capBox->mmap)
 238     {
 239         for (capBox->curframe = 0; capBox->curframe < capBox->buffers; capBox->curframe++)
 240             xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]);
 241         video_munmap(capBox->pmap, capBox->gb_buffers.size);
 242         CoTaskMemFree(capBox->grab_buf);
 243     }
 244     else
 245         CoTaskMemFree(capBox->grab_data);
 246 }
 247
 248 HRESULT qcap_driver_destroy(Capture *capBox)
 249 {
 250     TRACE("%p\n", capBox);
 251
 252     if( capBox->fd != -1 )
 253         video_close(capBox->fd);
 254     capBox->CritSect.DebugInfo->Spare[0] = 0;
 255     DeleteCriticalSection(&capBox->CritSect);
 256     CoTaskMemFree(capBox);
 257     return S_OK;
 258 }
 259
 260 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
 261 {
 262     int newheight, newwidth;
 263     struct video_window window;
 264     VIDEOINFOHEADER *format;
 265
 266     TRACE("%p\n", capBox);
 267
 268     format = (VIDEOINFOHEADER *) mT->pbFormat;
 269     if (format->bmiHeader.biBitCount != 24 ||
 270         format->bmiHeader.biCompression != BI_RGB)
 271     {
 272         FIXME("unsupported media type %d %d\n", format->bmiHeader.biBitCount,
 273               format->bmiHeader.biCompression );
 274         return VFW_E_INVALIDMEDIATYPE;
 275     }
 276
 277     newwidth = format->bmiHeader.biWidth;
 278     newheight = format->bmiHeader.biHeight;
 279
 280     TRACE("%p -> (%p) - %d %d\n", capBox, mT, newwidth, newheight);
 281
 282     if (capBox->height == newheight && capBox->width == newwidth)
 283         return S_OK;
 284
 285     if(-1 == xioctl(capBox->fd, VIDIOCGWIN, &window))
 286     {
 287         ERR("ioctl(VIDIOCGWIN) failed (%d)\n", errno);
 288         return E_FAIL;
 289     }
 290     window.width = newwidth;
 291     window.height = newheight;
 292     if (xioctl(capBox->fd, VIDIOCSWIN, &window) == -1)
 293     {
 294         TRACE("using software resize: %dx%d -> %dx%d\n",
 295                window.width, window.height, capBox->width, capBox->height);
 296         capBox->swresize = TRUE;
 297     }
 298     else
 299     {
 300         capBox->height = window.height;
 301         capBox->width = window.width;
 302         capBox->swresize = FALSE;
 303     }
 304     capBox->outputwidth = window.width;
 305     capBox->outputheight = window.height;
 306     return S_OK;
 307 }
 308
 309 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
 310 {
 311     VIDEOINFOHEADER *vi;
 312
 313     mT[0] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 314     if (!mT[0])
 315         return E_OUTOFMEMORY;
 316     vi = CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));
 317     mT[0]->cbFormat = sizeof(VIDEOINFOHEADER);
 318     if (!vi)
 319     {
 320         CoTaskMemFree(mT[0]);
 321         return E_OUTOFMEMORY;
 322     }
 323     mT[0]->majortype = MEDIATYPE_Video;
 324     mT[0]->subtype = MEDIASUBTYPE_RGB24;
 325     mT[0]->formattype = FORMAT_VideoInfo;
 326     mT[0]->bFixedSizeSamples = TRUE;
 327     mT[0]->bTemporalCompression = FALSE;
 328     mT[0]->pUnk = NULL;
 329     mT[0]->lSampleSize = capBox->outputwidth * capBox->outputheight * capBox->bitDepth / 8;
 330     TRACE("Output format: %dx%d - %d bits = %u KB\n", capBox->outputwidth,
 331           capBox->outputheight, capBox->bitDepth, mT[0]->lSampleSize/1024);
 332     vi->rcSource.left = 0; vi->rcSource.top = 0;
 333     vi->rcTarget.left = 0; vi->rcTarget.top = 0;
 334     vi->rcSource.right = capBox->width; vi->rcSource.bottom = capBox->height;
 335     vi->rcTarget.right = capBox->outputwidth; vi->rcTarget.bottom = capBox->outputheight;
 336     vi->dwBitRate = capBox->fps * mT[0]->lSampleSize;
 337     vi->dwBitErrorRate = 0;
 338     vi->AvgTimePerFrame = (LONGLONG)10000000.0 / (LONGLONG)capBox->fps;
 339     vi->bmiHeader.biSize = 40;
 340     vi->bmiHeader.biWidth = capBox->outputwidth;
 341     vi->bmiHeader.biHeight = capBox->outputheight;
 342     vi->bmiHeader.biPlanes = 1;
 343     vi->bmiHeader.biBitCount = 24;
 344     vi->bmiHeader.biCompression = BI_RGB;
 345     vi->bmiHeader.biSizeImage = mT[0]->lSampleSize;
 346     vi->bmiHeader.biClrUsed = vi->bmiHeader.biClrImportant = 0;
 347     vi->bmiHeader.biXPelsPerMeter = 100;
 348     vi->bmiHeader.biYPelsPerMeter = 100;
 349     mT[0]->pbFormat = (void *)vi;
 350     dump_AM_MEDIA_TYPE(mT[0]);
 351     return S_OK;
 352 }
 353
 354 HRESULT qcap_driver_get_prop_range( Capture *capBox, LONG Property, LONG *pMin,
 355             LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
 356 {
 357     TRACE("%p -> %d %p %p %p %p %p\n", capBox, Property,
 358           pMin, pMax, pSteppingDelta, pDefault, pCapsFlags);
 359
 360     switch (Property)
 361     {
 362     case VideoProcAmp_Brightness:
 363         *pDefault = capBox->dbrightness;
 364         break;
 365     case VideoProcAmp_Contrast:
 366         *pDefault = capBox->dcontrast;
 367         break;
 368     case VideoProcAmp_Hue:
 369         *pDefault = capBox->dhue;
 370         break;
 371     case VideoProcAmp_Saturation:
 372         *pDefault = capBox->dcolour;
 373         break;
 374     default:
 375         FIXME("Not implemented %d\n", Property);
 376         return E_NOTIMPL;
 377     }
 378     *pMin = 0;
 379     *pMax = 65535;
 380     *pSteppingDelta = 65536/256;
 381     *pCapsFlags = VideoProcAmp_Flags_Manual;
 382     return S_OK;
 383 }
 384
 385 HRESULT qcap_driver_get_prop( Capture *capBox, LONG Property, LONG *lValue, LONG *Flags )
 386 {
 387     TRACE("%p -> %d %p %p\n", capBox, Property, lValue, Flags);
 388
 389     switch (Property)
 390     {
 391     case VideoProcAmp_Brightness:
 392         *lValue = capBox->pict.brightness;
 393         break;
 394     case VideoProcAmp_Contrast:
 395         *lValue = capBox->pict.contrast;
 396         break;
 397     case VideoProcAmp_Hue:
 398         *lValue = capBox->pict.hue;
 399         break;
 400     case VideoProcAmp_Saturation:
 401         *lValue = capBox->pict.colour;
 402         break;
 403     default:
 404         FIXME("Not implemented %d\n", Property);
 405         return E_NOTIMPL;
 406     }
 407     *Flags = VideoProcAmp_Flags_Manual;
 408     return S_OK;
 409 }
 410
 411 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
 412 {
 413     TRACE("%p -> %ld %ld %ld\n", capBox, Property, lValue, Flags);
 414
 415     switch (Property)
 416     {
 417     case VideoProcAmp_Brightness:
 418         capBox->pict.brightness = lValue;
 419         break;
 420     case VideoProcAmp_Contrast:
 421         capBox->pict.contrast = lValue;
 422         break;
 423     case VideoProcAmp_Hue:
 424         capBox->pict.hue = lValue;
 425         break;
 426     case VideoProcAmp_Saturation:
 427         capBox->pict.colour = lValue;
 428         break;
 429     default:
 430         FIXME("Not implemented %ld\n", Property);
 431         return E_NOTIMPL;
 432     }
 433
 434     if (xioctl(capBox->fd, VIDIOCSPICT, &capBox->pict) == -1)
 435     {
 436         ERR("ioctl(VIDIOCSPICT) failed (%d)\n",errno);
 437         return E_FAIL;
 438     }
 439     return S_OK;
 440 }
 441
 442 static void renderer_RGB(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
 443 {
 444     int depth = renderlist_V4l[capBox->pict.palette].depth;
 445     int size = capBox->height * capBox->width * depth / 8;
 446     int pointer, offset;
 447
 448     switch (depth)
 449     {
 450     case 24:
 451         memcpy(bufferin, stream, size);
 452         break;
 453     case 32:
 454         pointer = 0;
 455         offset = 1;
 456         while (pointer + offset <= size)
 457         {
 458             bufferin[pointer] = stream[pointer + offset];
 459             pointer++;
 460             bufferin[pointer] = stream[pointer + offset];
 461             pointer++;
 462             bufferin[pointer] = stream[pointer + offset];
 463             pointer++;
 464             offset++;
 465         }
 466         break;
 467     default:
 468         ERR("Unknown bit depth %d\n", depth);
 469         return;
 470     }
 471 }
 472
 473 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
 474 {
 475     enum YUV_Format format;
 476
 477     switch (capBox->pict.palette)
 478     {
 479     case  7: /* YUV422  -  same as YUYV */
 480     case  8: /* YUYV    */
 481         format = YUYV;
 482         break;
 483     case  9: /* UYVY    */
 484         format = UYVY;
 485         break;
 486     case 11: /* YUV411  */
 487         format = UYYVYY;
 488         break;
 489     case 13: /* YUV422P */
 490         format = YUVP_421;
 491         break;
 492     case 14: /* YUV411P */
 493         format = YUVP_441;
 494         break;
 495     case 15: /* YUV420P */
 496         format = YUVP_422;
 497         break;
 498     case 16: /* YUV410P */
 499         format = YUVP_444;
 500         break;
 501     default:
 502         ERR("Unknown palette %d\n", capBox->pict.palette);
 503         return;
 504     }
 505     YUV_To_RGB24(format, bufferin, stream, capBox->width, capBox->height);
 506 }
 507
 508 static void Resize(const Capture * capBox, LPBYTE output, const BYTE *input)
 509 {
 510     /* the whole image needs to be reversed,
 511        because the dibs are messed up in windows */
 512     if (!capBox->swresize)
 513     {
 514         int depth = capBox->bitDepth / 8;
 515         int inoffset = 0, outoffset = capBox->height * capBox->width * depth;
 516         int ow = capBox->width * depth;
 517         while (outoffset > 0)
 518         {
 519             int x;
 520             outoffset -= ow;
 521             for (x = 0; x < ow; x++)
 522                 output[outoffset + x] = input[inoffset + x];
 523             inoffset += ow;
 524         }
 525     }
 526     else
 527     {
 528         HDC dc_s, dc_d;
 529         HBITMAP bmp_s, bmp_d;
 530         int depth = capBox->bitDepth / 8;
 531         int inoffset = 0, outoffset = (capBox->outputheight) * capBox->outputwidth * depth;
 532         int ow = capBox->outputwidth * depth;
 533         LPBYTE myarray;
 534
 535         /* FIXME: Improve software resizing: add error checks and optimize */
 536
 537         myarray = CoTaskMemAlloc(capBox->outputwidth * capBox->outputheight * depth);
 538         dc_s = CreateCompatibleDC(NULL);
 539         dc_d = CreateCompatibleDC(NULL);
 540         bmp_s = CreateBitmap(capBox->width, capBox->height, 1, capBox->bitDepth, input);
 541         bmp_d = CreateBitmap(capBox->outputwidth, capBox->outputheight, 1, capBox->bitDepth, NULL);
 542         SelectObject(dc_s, bmp_s);
 543         SelectObject(dc_d, bmp_d);
 544         StretchBlt(dc_d, 0, 0, capBox->outputwidth, capBox->outputheight,
 545                    dc_s, 0, 0, capBox->width, capBox->height, SRCCOPY);
 546         GetBitmapBits(bmp_d, capBox->outputwidth * capBox->outputheight * depth, myarray);
 547         while (outoffset > 0)
 548         {
 549             int i;
 550
 551             outoffset -= ow;
 552             for (i = 0; i < ow; i++)
 553                 output[outoffset + i] = myarray[inoffset + i];
 554             inoffset += ow;
 555         }
 556         CoTaskMemFree(myarray);
 557         DeleteObject(dc_s);
 558         DeleteObject(dc_d);
 559         DeleteObject(bmp_s);
 560         DeleteObject(bmp_d);
 561     }
 562 }
 563
 564 static void V4l_GetFrame(Capture * capBox, unsigned char ** pInput)
 565 {
 566     if (capBox->mmap)
 567     {
 568         if (xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]) == -1)
 569             WARN("Syncing ioctl failed: %d\n", errno);
 570
 571         *pInput = capBox->pmap + capBox->gb_buffers.offsets[capBox->curframe];
 572     }
 573     else
 574     {
 575         int retval;
 576         while ((retval = video_read(capBox->fd, capBox->grab_data, capBox->imagesize)) == -1)
 577             if (errno != EAGAIN) break;
 578         if (retval == -1)
 579             WARN("Error occurred while reading from device: %s\n", strerror(errno));
 580         *pInput = (unsigned char*) capBox->grab_data;
 581     }
 582 }
 583
 584 static void V4l_FreeFrame(Capture * capBox)
 585 {
 586     TRACE("\n");
 587     if (capBox->mmap)
 588     {
 589         if (xioctl(capBox->fd, VIDIOCMCAPTURE, &capBox->grab_buf[capBox->curframe]) == -1)
 590            ERR("Freeing frame for capture failed: %s\n", strerror(errno));
 591     }
 592     if (++capBox->curframe == capBox->buffers)
 593         capBox->curframe = 0;
 594 }
 595
 596 static DWORD WINAPI ReadThread(LPVOID lParam)
 597 {
 598     Capture * capBox = lParam;
 599     HRESULT hr;
 600     IMediaSample *pSample = NULL;
 601     unsigned long framecount = 0;
 602     unsigned char *pTarget, *pInput, *pOutput;
 603
 604     hr = V4l_Prepare(capBox);
 605     if (FAILED(hr))
 606         goto fail;
 607
 608     pOutput = CoTaskMemAlloc(capBox->width * capBox->height * capBox->bitDepth / 8);
 609     capBox->curframe = 0;
 610     do {
 611         V4l_FreeFrame(capBox);
 612     } while (capBox->curframe != 0);
 613
 614     while (1)
 615     {
 616         EnterCriticalSection(&capBox->CritSect);
 617         if (capBox->stopped)
 618             break;
 619         hr = OutputPin_GetDeliveryBuffer((OutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
 620         if (SUCCEEDED(hr))
 621         {
 622             int len;
 623
 624             if (!capBox->swresize)
 625                 len = capBox->height * capBox->width * capBox->bitDepth / 8;
 626             else
 627                 len = capBox->outputheight * capBox->outputwidth * capBox->bitDepth / 8;
 628             IMediaSample_SetActualDataLength(pSample, len);
 629
 630             len = IMediaSample_GetActualDataLength(pSample);
 631             TRACE("Data length: %d KB\n", len / 1024);
 632
 633             IMediaSample_GetPointer(pSample, &pTarget);
 634             /* FIXME: Check return values.. */
 635             V4l_GetFrame(capBox, &pInput);
 636             capBox->renderer(capBox, pOutput, pInput);
 637             Resize(capBox, pTarget, pOutput);
 638             hr = OutputPin_SendSample((OutputPin *)capBox->pOut, pSample);
 639             TRACE("%p -> Frame %lu: %x\n", capBox, ++framecount, hr);
 640             IMediaSample_Release(pSample);
 641             V4l_FreeFrame(capBox);
 642         }
 643         LeaveCriticalSection(&capBox->CritSect);
 644         if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
 645         {
 646             ERR("Received error: %x\n", hr);
 647             goto cfail;
 648         }
 649     }
 650     LeaveCriticalSection(&capBox->CritSect);
 651     CoTaskMemFree(pOutput);
 652
 653     return 0;
 654
 655 cfail:
 656     CoTaskMemFree(pOutput);
 657     V4l_Unprepare(capBox);
 658     LeaveCriticalSection(&capBox->CritSect);
 659
 660 fail:
 661     capBox->thread = 0; capBox->stopped = 1;
 662     FIXME("Stop IFilterGraph\n");
 663     return 0;
 664 }
 665
 666 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
 667 {
 668     HANDLE thread;
 669     HRESULT hr;
 670
 671     TRACE("%p -> (%p)\n", capBox, state);
 672
 673     if (*state == State_Running) return S_OK;
 674
 675     EnterCriticalSection(&capBox->CritSect);
 676
 677     capBox->stopped = 0;
 678
 679     if (*state == State_Stopped)
 680     {
 681         *state = State_Running;
 682         if (!capBox->iscommitted++)
 683         {
 684             IMemAllocator * pAlloc = NULL;
 685             ALLOCATOR_PROPERTIES ap, actual;
 686             OutputPin *out;
 687
 688             ap.cBuffers = 3;
 689             if (!capBox->swresize)
 690                 ap.cbBuffer = capBox->width * capBox->height;
 691             else
 692                 ap.cbBuffer = capBox->outputwidth * capBox->outputheight;
 693             ap.cbBuffer = (ap.cbBuffer * capBox->bitDepth) / 8;
 694             ap.cbAlign = 1;
 695             ap.cbPrefix = 0;
 696
 697             out = (OutputPin *)capBox->pOut;
 698             hr = IMemInputPin_GetAllocator(out->pMemInputPin, &pAlloc);
 699
 700             if (SUCCEEDED(hr))
 701                 hr = IMemAllocator_SetProperties(pAlloc, &ap, &actual);
 702
 703             if (SUCCEEDED(hr))
 704                 hr = IMemAllocator_Commit(pAlloc);
 705
 706             if (pAlloc)
 707                 IMemAllocator_Release(pAlloc);
 708
 709             TRACE("Committing allocator: %x\n", hr);
 710         }
 711
 712         thread = CreateThread(NULL, 0, ReadThread, capBox, 0, NULL);
 713         if (thread)
 714         {
 715             capBox->thread = thread;
 716             SetThreadPriority(thread, THREAD_PRIORITY_LOWEST);
 717             LeaveCriticalSection(&capBox->CritSect);
 718             return S_OK;
 719         }
 720         ERR("Creating thread failed.. %u\n", GetLastError());
 721         LeaveCriticalSection(&capBox->CritSect);
 722         return E_FAIL;
 723     }
 724
 725     ResumeThread(capBox->thread);
 726     *state = State_Running;
 727     LeaveCriticalSection(&capBox->CritSect);
 728     return S_OK;
 729 }
 730
 731 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
 732 {
 733     TRACE("%p -> (%p)\n", capBox, state);
 734
 735     if (*state == State_Paused)
 736         return S_OK;
 737     if (*state == State_Stopped)
 738         qcap_driver_run(capBox, state);
 739
 740     EnterCriticalSection(&capBox->CritSect);
 741     *state = State_Paused;
 742     SuspendThread(capBox->thread);
 743     LeaveCriticalSection(&capBox->CritSect);
 744
 745     return S_OK;
 746 }
 747
 748 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
 749 {
 750     TRACE("%p -> (%p)\n", capBox, state);
 751
 752     if (*state == State_Stopped)
 753         return S_OK;
 754
 755     EnterCriticalSection(&capBox->CritSect);
 756
 757     if (capBox->thread)
 758     {
 759         if (*state == State_Paused)
 760             ResumeThread(capBox->thread);
 761         capBox->stopped = 1;
 762         capBox->thread = 0;
 763         if (capBox->iscommitted)
 764         {
 765             IMemInputPin *pMem = NULL;
 766             IMemAllocator * pAlloc = NULL;
 767             IPin *pConnect = NULL;
 768             HRESULT hr;
 769
 770             capBox->iscommitted = 0;
 771
 772             hr = IPin_ConnectedTo(capBox->pOut, &pConnect);
 773
 774             if (SUCCEEDED(hr))
 775                 hr = IPin_QueryInterface(pConnect, &IID_IMemInputPin, (void **) &pMem);
 776
 777             if (SUCCEEDED(hr))
 778                 hr = IMemInputPin_GetAllocator(pMem, &pAlloc);
 779
 780             if (SUCCEEDED(hr))
 781                 hr = IMemAllocator_Decommit(pAlloc);
 782
 783             if (pAlloc)
 784                 IMemAllocator_Release(pAlloc);
 785
 786             if (pMem)
 787                 IMemInputPin_Release(pMem);
 788
 789             if (pConnect)
 790                 IPin_Release(pConnect);
 791
 792             if (hr != S_OK && hr != VFW_E_NOT_COMMITTED)
 793                 WARN("Decommitting allocator: %x\n", hr);
 794         }
 795         V4l_Unprepare(capBox);
 796     }
 797
 798     *state = State_Stopped;
 799     LeaveCriticalSection(&capBox->CritSect);
 800     return S_OK;
 801 }
 802
 803 Capture * qcap_driver_init( IPin *pOut, USHORT card )
 804 {
 805     Capture * capBox = NULL;
 806     char device[20];
 807     struct video_capability capa;
 808     struct video_picture pict;
 809     struct video_window window;
 810
 811     YUV_Init();
 812     video_init();
 813
 814     capBox = CoTaskMemAlloc(sizeof(Capture));
 815     if (!capBox)
 816         goto error;
 817
 818     /* capBox->vtbl = &defboxVtbl; */
 819
 820     InitializeCriticalSection( &capBox->CritSect );
 821     capBox->CritSect.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": Capture.CritSect");
 822
 823     sprintf(device, "/dev/video%i", card);
 824     TRACE("opening %s\n", device);
 825     capBox->fd = video_open(device, O_RDWR | O_NONBLOCK);
 826     if (capBox->fd == -1)
 827     {
 828         WARN("open failed (%d)\n", errno);
 829         goto error;
 830     }
 831
 832     memset(&capa, 0, sizeof(capa));
 833
 834     if (xioctl(capBox->fd, VIDIOCGCAP, &capa) == -1)
 835     {
 836         WARN("ioctl(VIDIOCGCAP) failed (%d)\n", errno);
 837         goto error;
 838     }
 839
 840     if (!(capa.type & VID_TYPE_CAPTURE))
 841     {
 842         WARN("not a video capture device\n");
 843         goto error;
 844     }
 845
 846     TRACE("%d inputs on %s\n", capa.channels, capa.name );
 847
 848     if (xioctl(capBox->fd, VIDIOCGPICT, &pict) == -1)
 849     {
 850         ERR("ioctl(VIDIOCGPICT) failed (%d)\n", errno );
 851         goto error;
 852     }
 853
 854     TRACE("depth %d palette %d (%s) hue %d color %d contrast %d\n",
 855           pict.depth, pict.palette, renderlist_V4l[pict.palette].name,
 856           pict.hue, pict.colour, pict.contrast );
 857
 858     capBox->dbrightness = pict.brightness;
 859     capBox->dcolour = pict.colour;
 860     capBox->dhue = pict.hue;
 861     capBox->dcontrast = pict.contrast;
 862
 863     if (!renderlist_V4l[pict.palette].renderer)
 864     {
 865         int palet = pict.palette, i;
 866
 867         TRACE("No renderer available for %s, falling back to defaults\n",
 868              renderlist_V4l[pict.palette].name);
 869         capBox->renderer = NULL;
 870         for (i = 0; fallback_V4l[i] >=0 ; i++)
 871         {
 872             int n = fallback_V4l[i];
 873
 874             if (renderlist_V4l[n].renderer == NULL)
 875                 continue;
 876
 877             pict.depth = renderlist_V4l[n].depth;
 878             pict.palette = n;
 879             if (xioctl(capBox->fd, VIDIOCSPICT, &pict) == -1)
 880             {
 881                 TRACE("Could not render with %s (%d)\n",
 882                       renderlist_V4l[n].name, n);
 883                 continue;
 884             }
 885             TRACE("using renderer %s (%d)\n",
 886                   renderlist_V4l[n].name, n);
 887             capBox->renderer = renderlist_V4l[n].renderer;
 888             break;
 889         }
 890
 891         if (!capBox->renderer)
 892         {
 893             ERR("video format %s isn't available\n",
 894                  renderlist_V4l[palet].name);
 895             goto error;
 896         }
 897     }
 898     else
 899     {
 900         TRACE("Using the suggested format\n");
 901         capBox->renderer = renderlist_V4l[pict.palette].renderer;
 902     }
 903     memcpy(&capBox->pict, &pict, sizeof(struct video_picture));
 904
 905     memset(&window, 0, sizeof(window));
 906     if (xioctl(capBox->fd, VIDIOCGWIN, &window) == -1)
 907     {
 908         WARN("VIDIOCGWIN failed (%d)\n", errno);
 909         goto error;
 910     }
 911
 912     capBox->height = capBox->outputheight = window.height;
 913     capBox->width = capBox->outputwidth = window.width;
 914     capBox->swresize = FALSE;
 915     capBox->bitDepth = 24;
 916     capBox->pOut = pOut;
 917     capBox->fps = 3;
 918     capBox->stopped = 0;
 919     capBox->curframe = 0;
 920     capBox->iscommitted = 0;
 921
 922     TRACE("format: %d bits - %d x %d\n", capBox->bitDepth, capBox->width, capBox->height);
 923
 924     return capBox;
 925
 926 error:
 927     if (capBox)
 928         qcap_driver_destroy( capBox );
 929
 930     return NULL;
 931 }
 932
 933 #else
 934
 935 Capture * qcap_driver_init( IPin *pOut, USHORT card )
 936 {
 937     const char msg[] =
 938         "The v4l headers were not available at compile time,\n"
 939         "so video capture support is not available.\n";
 940     MESSAGE(msg);
 941     return NULL;
 942 }
 943
 944 #define FAIL_WITH_ERR \
 945     ERR("v4l absent: shouldn't be called\n"); \
 946     return E_NOTIMPL
 947
 948 HRESULT qcap_driver_destroy(Capture *capBox)
 949 {
 950     FAIL_WITH_ERR;
 951 }
 952
 953 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
 954 {
 955     FAIL_WITH_ERR;
 956 }
 957
 958 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
 959 {
 960     FAIL_WITH_ERR;
 961 }
 962
 963 HRESULT qcap_driver_get_prop_range( Capture *capBox, LONG Property, LONG *pMin,
 964           LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
 965 {
 966     FAIL_WITH_ERR;
 967 }
 968
 969 HRESULT qcap_driver_get_prop(Capture *capBox, LONG Property, LONG *lValue, LONG *Flags)
 970 {
 971     FAIL_WITH_ERR;
 972 }
 973
 974 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
 975 {
 976     FAIL_WITH_ERR;
 977 }
 978
 979 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
 980 {
 981     FAIL_WITH_ERR;
 982 }
 983
 984 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
 985 {
 986     FAIL_WITH_ERR;
 987 }
 988
 989 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
 990 {
 991     FAIL_WITH_ERR;
 992 }
 993
 994 #endif /* HAVE_LINUX_VIDEODEV_H */