2 * DirectShow capture services (QCAP.DLL)
4 * Copyright 2005 Maarten Lankhorst
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..
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.
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.
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
26 #include "wine/port.h"
27 #include "wine/library.h"
29 #define NONAMELESSSTRUCT
30 #define NONAMELESSUNION
42 #include "wine/debug.h"
45 #include "qcap_main.h"
51 #ifdef HAVE_SYS_IOCTL_H
52 #include <sys/ioctl.h>
54 #ifdef HAVE_SYS_MMAN_H
57 #ifdef HAVE_SYS_ERRNO_H
58 #include <sys/errno.h>
60 #ifdef HAVE_SYS_TIME_H
63 #ifdef HAVE_ASM_TYPES_H
64 #include <asm/types.h>
66 #ifdef HAVE_LINUX_VIDEODEV_H
67 #include <linux/videodev.h>
73 WINE_DEFAULT_DEBUG_CHANNEL(qcap_v4l);
75 #ifdef HAVE_LINUX_VIDEODEV_H
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;
84 static void video_init(void)
87 static void *video_lib;
91 video_lib = wine_dlopen(SONAME_LIBV4L1, RTLD_NOW, NULL, 0);
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);
103 typedef void (* Renderer)(const Capture *, LPBYTE bufferin, const BYTE *stream);
107 UINT width, height, bitDepth, fps, outputwidth, outputheight;
110 CRITICAL_SECTION CritSect;
114 int iscommitted, stopped;
115 struct video_picture pict;
116 int dbrightness, dhue, dcolour, dcontrast;
119 struct video_mmap *grab_buf;
120 struct video_mbuf gb_buffers;
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);
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 */
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 */
169 /* static const Capture defbox; */
171 static int xioctl(int fd, int request, void * arg)
176 r = video_ioctl (fd, request, arg);
177 } while (-1 == r && EINTR == errno);
182 /* Prepare the capture buffers */
183 static HRESULT V4l_Prepare(Capture *capBox)
185 TRACE("%p: Preparing for %dx%d resolution\n", capBox, capBox->width, capBox->height);
189 if (xioctl(capBox->fd, VIDIOCGMBUF, &capBox->gb_buffers) != -1 &&
190 capBox->gb_buffers.frames)
192 capBox->buffers = capBox->gb_buffers.frames;
193 if (capBox->gb_buffers.frames > 1)
195 TRACE("%p: Using %d/%d buffers\n", capBox,
196 capBox->buffers, capBox->gb_buffers.frames);
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)
204 capBox->grab_buf = CoTaskMemAlloc(sizeof(struct video_mmap) * capBox->buffers);
205 if (!capBox->grab_buf)
207 video_munmap(capBox->pmap, capBox->gb_buffers.size);
208 return E_OUTOFMEMORY;
211 /* Setup mmap capture buffers. */
212 for (i = 0; i < capBox->buffers; i++)
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;
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;
231 TRACE("Using mmap: %d\n", capBox->mmap);
235 static void V4l_Unprepare(Capture *capBox)
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);
245 CoTaskMemFree(capBox->grab_data);
248 HRESULT qcap_driver_destroy(Capture *capBox)
250 TRACE("%p\n", capBox);
252 if( capBox->fd != -1 )
253 video_close(capBox->fd);
254 capBox->CritSect.DebugInfo->Spare[0] = 0;
255 DeleteCriticalSection(&capBox->CritSect);
256 CoTaskMemFree(capBox);
260 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
262 int newheight, newwidth;
263 struct video_window window;
264 VIDEOINFOHEADER *format;
266 TRACE("%p\n", capBox);
268 format = (VIDEOINFOHEADER *) mT->pbFormat;
269 if (format->bmiHeader.biBitCount != 24 ||
270 format->bmiHeader.biCompression != BI_RGB)
272 FIXME("unsupported media type %d %d\n", format->bmiHeader.biBitCount,
273 format->bmiHeader.biCompression );
274 return VFW_E_INVALIDMEDIATYPE;
277 newwidth = format->bmiHeader.biWidth;
278 newheight = format->bmiHeader.biHeight;
280 TRACE("%p -> (%p) - %d %d\n", capBox, mT, newwidth, newheight);
282 if (capBox->height == newheight && capBox->width == newwidth)
285 if(-1 == xioctl(capBox->fd, VIDIOCGWIN, &window))
287 ERR("ioctl(VIDIOCGWIN) failed (%d)\n", errno);
290 window.width = newwidth;
291 window.height = newheight;
292 if (xioctl(capBox->fd, VIDIOCSWIN, &window) == -1)
294 TRACE("using software resize: %dx%d -> %dx%d\n",
295 window.width, window.height, capBox->width, capBox->height);
296 capBox->swresize = TRUE;
300 capBox->height = window.height;
301 capBox->width = window.width;
302 capBox->swresize = FALSE;
304 capBox->outputwidth = window.width;
305 capBox->outputheight = window.height;
309 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
313 mT[0] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
315 return E_OUTOFMEMORY;
316 vi = CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));
317 mT[0]->cbFormat = sizeof(VIDEOINFOHEADER);
320 CoTaskMemFree(mT[0]);
321 return E_OUTOFMEMORY;
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;
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]);
354 HRESULT qcap_driver_get_prop_range( Capture *capBox, LONG Property, LONG *pMin,
355 LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
357 TRACE("%p -> %d %p %p %p %p %p\n", capBox, Property,
358 pMin, pMax, pSteppingDelta, pDefault, pCapsFlags);
362 case VideoProcAmp_Brightness:
363 *pDefault = capBox->dbrightness;
365 case VideoProcAmp_Contrast:
366 *pDefault = capBox->dcontrast;
368 case VideoProcAmp_Hue:
369 *pDefault = capBox->dhue;
371 case VideoProcAmp_Saturation:
372 *pDefault = capBox->dcolour;
375 FIXME("Not implemented %d\n", Property);
380 *pSteppingDelta = 65536/256;
381 *pCapsFlags = VideoProcAmp_Flags_Manual;
385 HRESULT qcap_driver_get_prop( Capture *capBox, LONG Property, LONG *lValue, LONG *Flags )
387 TRACE("%p -> %d %p %p\n", capBox, Property, lValue, Flags);
391 case VideoProcAmp_Brightness:
392 *lValue = capBox->pict.brightness;
394 case VideoProcAmp_Contrast:
395 *lValue = capBox->pict.contrast;
397 case VideoProcAmp_Hue:
398 *lValue = capBox->pict.hue;
400 case VideoProcAmp_Saturation:
401 *lValue = capBox->pict.colour;
404 FIXME("Not implemented %d\n", Property);
407 *Flags = VideoProcAmp_Flags_Manual;
411 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
413 TRACE("%p -> %ld %ld %ld\n", capBox, Property, lValue, Flags);
417 case VideoProcAmp_Brightness:
418 capBox->pict.brightness = lValue;
420 case VideoProcAmp_Contrast:
421 capBox->pict.contrast = lValue;
423 case VideoProcAmp_Hue:
424 capBox->pict.hue = lValue;
426 case VideoProcAmp_Saturation:
427 capBox->pict.colour = lValue;
430 FIXME("Not implemented %ld\n", Property);
434 if (xioctl(capBox->fd, VIDIOCSPICT, &capBox->pict) == -1)
436 ERR("ioctl(VIDIOCSPICT) failed (%d)\n",errno);
442 static void renderer_RGB(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
444 int depth = renderlist_V4l[capBox->pict.palette].depth;
445 int size = capBox->height * capBox->width * depth / 8;
451 memcpy(bufferin, stream, size);
456 while (pointer + offset <= size)
458 bufferin[pointer] = stream[pointer + offset];
460 bufferin[pointer] = stream[pointer + offset];
462 bufferin[pointer] = stream[pointer + offset];
468 ERR("Unknown bit depth %d\n", depth);
473 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
475 enum YUV_Format format;
477 switch (capBox->pict.palette)
479 case 7: /* YUV422 - same as YUYV */
486 case 11: /* YUV411 */
489 case 13: /* YUV422P */
492 case 14: /* YUV411P */
495 case 15: /* YUV420P */
498 case 16: /* YUV410P */
502 ERR("Unknown palette %d\n", capBox->pict.palette);
505 YUV_To_RGB24(format, bufferin, stream, capBox->width, capBox->height);
508 static void Resize(const Capture * capBox, LPBYTE output, const BYTE *input)
510 /* the whole image needs to be reversed,
511 because the dibs are messed up in windows */
512 if (!capBox->swresize)
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)
521 for (x = 0; x < ow; x++)
522 output[outoffset + x] = input[inoffset + x];
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;
535 /* FIXME: Improve software resizing: add error checks and optimize */
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)
552 for (i = 0; i < ow; i++)
553 output[outoffset + i] = myarray[inoffset + i];
556 CoTaskMemFree(myarray);
564 static void V4l_GetFrame(Capture * capBox, unsigned char ** pInput)
568 if (xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]) == -1)
569 WARN("Syncing ioctl failed: %d\n", errno);
571 *pInput = capBox->pmap + capBox->gb_buffers.offsets[capBox->curframe];
576 while ((retval = video_read(capBox->fd, capBox->grab_data, capBox->imagesize)) == -1)
577 if (errno != EAGAIN) break;
579 WARN("Error occurred while reading from device: %s\n", strerror(errno));
580 *pInput = (unsigned char*) capBox->grab_data;
584 static void V4l_FreeFrame(Capture * capBox)
589 if (xioctl(capBox->fd, VIDIOCMCAPTURE, &capBox->grab_buf[capBox->curframe]) == -1)
590 ERR("Freeing frame for capture failed: %s\n", strerror(errno));
592 if (++capBox->curframe == capBox->buffers)
593 capBox->curframe = 0;
596 static DWORD WINAPI ReadThread(LPVOID lParam)
598 Capture * capBox = lParam;
600 IMediaSample *pSample = NULL;
601 unsigned long framecount = 0;
602 unsigned char *pTarget, *pInput, *pOutput;
604 hr = V4l_Prepare(capBox);
608 pOutput = CoTaskMemAlloc(capBox->width * capBox->height * capBox->bitDepth / 8);
609 capBox->curframe = 0;
611 V4l_FreeFrame(capBox);
612 } while (capBox->curframe != 0);
616 EnterCriticalSection(&capBox->CritSect);
619 hr = OutputPin_GetDeliveryBuffer((OutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
624 if (!capBox->swresize)
625 len = capBox->height * capBox->width * capBox->bitDepth / 8;
627 len = capBox->outputheight * capBox->outputwidth * capBox->bitDepth / 8;
628 IMediaSample_SetActualDataLength(pSample, len);
630 len = IMediaSample_GetActualDataLength(pSample);
631 TRACE("Data length: %d KB\n", len / 1024);
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);
643 LeaveCriticalSection(&capBox->CritSect);
644 if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
646 ERR("Received error: %x\n", hr);
650 LeaveCriticalSection(&capBox->CritSect);
651 CoTaskMemFree(pOutput);
656 CoTaskMemFree(pOutput);
657 V4l_Unprepare(capBox);
658 LeaveCriticalSection(&capBox->CritSect);
661 capBox->thread = 0; capBox->stopped = 1;
662 FIXME("Stop IFilterGraph\n");
666 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
671 TRACE("%p -> (%p)\n", capBox, state);
673 if (*state == State_Running) return S_OK;
675 EnterCriticalSection(&capBox->CritSect);
679 if (*state == State_Stopped)
681 *state = State_Running;
682 if (!capBox->iscommitted++)
684 IMemAllocator * pAlloc = NULL;
685 ALLOCATOR_PROPERTIES ap, actual;
689 if (!capBox->swresize)
690 ap.cbBuffer = capBox->width * capBox->height;
692 ap.cbBuffer = capBox->outputwidth * capBox->outputheight;
693 ap.cbBuffer = (ap.cbBuffer * capBox->bitDepth) / 8;
697 out = (OutputPin *)capBox->pOut;
698 hr = IMemInputPin_GetAllocator(out->pMemInputPin, &pAlloc);
701 hr = IMemAllocator_SetProperties(pAlloc, &ap, &actual);
704 hr = IMemAllocator_Commit(pAlloc);
707 IMemAllocator_Release(pAlloc);
709 TRACE("Committing allocator: %x\n", hr);
712 thread = CreateThread(NULL, 0, ReadThread, capBox, 0, NULL);
715 capBox->thread = thread;
716 SetThreadPriority(thread, THREAD_PRIORITY_LOWEST);
717 LeaveCriticalSection(&capBox->CritSect);
720 ERR("Creating thread failed.. %u\n", GetLastError());
721 LeaveCriticalSection(&capBox->CritSect);
725 ResumeThread(capBox->thread);
726 *state = State_Running;
727 LeaveCriticalSection(&capBox->CritSect);
731 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
733 TRACE("%p -> (%p)\n", capBox, state);
735 if (*state == State_Paused)
737 if (*state == State_Stopped)
738 qcap_driver_run(capBox, state);
740 EnterCriticalSection(&capBox->CritSect);
741 *state = State_Paused;
742 SuspendThread(capBox->thread);
743 LeaveCriticalSection(&capBox->CritSect);
748 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
750 TRACE("%p -> (%p)\n", capBox, state);
752 if (*state == State_Stopped)
755 EnterCriticalSection(&capBox->CritSect);
759 if (*state == State_Paused)
760 ResumeThread(capBox->thread);
763 if (capBox->iscommitted)
765 IMemInputPin *pMem = NULL;
766 IMemAllocator * pAlloc = NULL;
767 IPin *pConnect = NULL;
770 capBox->iscommitted = 0;
772 hr = IPin_ConnectedTo(capBox->pOut, &pConnect);
775 hr = IPin_QueryInterface(pConnect, &IID_IMemInputPin, (void **) &pMem);
778 hr = IMemInputPin_GetAllocator(pMem, &pAlloc);
781 hr = IMemAllocator_Decommit(pAlloc);
784 IMemAllocator_Release(pAlloc);
787 IMemInputPin_Release(pMem);
790 IPin_Release(pConnect);
792 if (hr != S_OK && hr != VFW_E_NOT_COMMITTED)
793 WARN("Decommitting allocator: %x\n", hr);
795 V4l_Unprepare(capBox);
798 *state = State_Stopped;
799 LeaveCriticalSection(&capBox->CritSect);
803 Capture * qcap_driver_init( IPin *pOut, USHORT card )
805 Capture * capBox = NULL;
807 struct video_capability capa;
808 struct video_picture pict;
809 struct video_window window;
814 capBox = CoTaskMemAlloc(sizeof(Capture));
818 /* capBox->vtbl = &defboxVtbl; */
820 InitializeCriticalSection( &capBox->CritSect );
821 capBox->CritSect.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": Capture.CritSect");
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)
828 WARN("open failed (%d)\n", errno);
832 memset(&capa, 0, sizeof(capa));
834 if (xioctl(capBox->fd, VIDIOCGCAP, &capa) == -1)
836 WARN("ioctl(VIDIOCGCAP) failed (%d)\n", errno);
840 if (!(capa.type & VID_TYPE_CAPTURE))
842 WARN("not a video capture device\n");
846 TRACE("%d inputs on %s\n", capa.channels, capa.name );
848 if (xioctl(capBox->fd, VIDIOCGPICT, &pict) == -1)
850 ERR("ioctl(VIDIOCGPICT) failed (%d)\n", errno );
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 );
858 capBox->dbrightness = pict.brightness;
859 capBox->dcolour = pict.colour;
860 capBox->dhue = pict.hue;
861 capBox->dcontrast = pict.contrast;
863 if (!renderlist_V4l[pict.palette].renderer)
865 int palet = pict.palette, i;
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++)
872 int n = fallback_V4l[i];
874 if (renderlist_V4l[n].renderer == NULL)
877 pict.depth = renderlist_V4l[n].depth;
879 if (xioctl(capBox->fd, VIDIOCSPICT, &pict) == -1)
881 TRACE("Could not render with %s (%d)\n",
882 renderlist_V4l[n].name, n);
885 TRACE("using renderer %s (%d)\n",
886 renderlist_V4l[n].name, n);
887 capBox->renderer = renderlist_V4l[n].renderer;
891 if (!capBox->renderer)
893 ERR("video format %s isn't available\n",
894 renderlist_V4l[palet].name);
900 TRACE("Using the suggested format\n");
901 capBox->renderer = renderlist_V4l[pict.palette].renderer;
903 memcpy(&capBox->pict, &pict, sizeof(struct video_picture));
905 memset(&window, 0, sizeof(window));
906 if (xioctl(capBox->fd, VIDIOCGWIN, &window) == -1)
908 WARN("VIDIOCGWIN failed (%d)\n", errno);
912 capBox->height = capBox->outputheight = window.height;
913 capBox->width = capBox->outputwidth = window.width;
914 capBox->swresize = FALSE;
915 capBox->bitDepth = 24;
919 capBox->curframe = 0;
920 capBox->iscommitted = 0;
922 TRACE("format: %d bits - %d x %d\n", capBox->bitDepth, capBox->width, capBox->height);
928 qcap_driver_destroy( capBox );
935 Capture * qcap_driver_init( IPin *pOut, USHORT card )
938 "The v4l headers were not available at compile time,\n"
939 "so video capture support is not available.\n";
944 #define FAIL_WITH_ERR \
945 ERR("v4l absent: shouldn't be called\n"); \
948 HRESULT qcap_driver_destroy(Capture *capBox)
953 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
958 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
963 HRESULT qcap_driver_get_prop_range( Capture *capBox, LONG Property, LONG *pMin,
964 LONG *pMax, LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
969 HRESULT qcap_driver_get_prop(Capture *capBox, LONG Property, LONG *lValue, LONG *Flags)
974 HRESULT qcap_driver_set_prop(Capture *capBox, long Property, long lValue, long Flags)
979 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
984 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
989 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
994 #endif /* HAVE_LINUX_VIDEODEV_H */