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"
28 #define NONAMELESSSTRUCT
29 #define NONAMELESSUNION
35 #ifdef HAVE_SYS_IOCTL_H
36 #include <sys/ioctl.h>
38 #ifdef HAVE_SYS_MMAN_H
42 #ifdef HAVE_SYS_TIME_H
45 #ifdef HAVE_ASM_TYPES_H
46 #include <asm/types.h>
48 #ifdef HAVE_LINUX_VIDEODEV_H
49 #include <linux/videodev.h>
63 #include "wine/debug.h"
64 #include "wine/library.h"
67 #include "qcap_main.h"
69 WINE_DEFAULT_DEBUG_CHANNEL(qcap_v4l);
71 #ifdef HAVE_LINUX_VIDEODEV_H
73 static typeof(open) *video_open = open;
74 static typeof(close) *video_close = close;
75 static typeof(ioctl) *video_ioctl = ioctl;
76 static typeof(read) *video_read = read;
77 static typeof(mmap) *video_mmap = mmap;
78 static typeof(munmap) *video_munmap = munmap;
80 static void video_init(void)
83 static void *video_lib;
87 video_lib = wine_dlopen(SONAME_LIBV4L1, RTLD_NOW, NULL, 0);
90 video_open = wine_dlsym(video_lib, "v4l1_open", NULL, 0);
91 video_close = wine_dlsym(video_lib, "v4l1_close", NULL, 0);
92 video_ioctl = wine_dlsym(video_lib, "v4l1_ioctl", NULL, 0);
93 video_read = wine_dlsym(video_lib, "v4l1_read", NULL, 0);
94 video_mmap = wine_dlsym(video_lib, "v4l1_mmap", NULL, 0);
95 video_munmap = wine_dlsym(video_lib, "v4l1_munmap", NULL, 0);
99 typedef void (* Renderer)(const Capture *, LPBYTE bufferin, const BYTE *stream);
103 UINT width, height, bitDepth, fps, outputwidth, outputheight;
106 CRITICAL_SECTION CritSect;
110 int iscommitted, stopped;
111 struct video_picture pict;
112 int dbrightness, dhue, dcolour, dcontrast;
115 struct video_mmap *grab_buf;
116 struct video_mbuf gb_buffers;
137 static void renderer_RGB(const Capture *capBox, LPBYTE bufferin, const BYTE *stream);
138 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *stream);
140 static const struct renderlist renderlist_V4l[] = {
141 { 0, "NULL renderer", NULL },
142 { 8, "Gray scales", NULL }, /* 1, Don't support */
143 { 0, "High 240 cube (BT848)", NULL }, /* 2, Don't support */
144 { 16, "16 bit RGB (565)", NULL }, /* 3, Don't support */
145 { 24, "24 bit RGB values", renderer_RGB }, /* 4, Supported, */
146 { 32, "32 bit RGB values", renderer_RGB }, /* 5, Supported */
147 { 16, "15 bit RGB (555)", NULL }, /* 6, Don't support */
148 { 16, "YUV 422 (Not P)", renderer_YUV }, /* 7, Supported */
149 { 16, "YUYV (Not P)", renderer_YUV }, /* 8, Supported */
150 { 16, "UYVY (Not P)", renderer_YUV }, /* 9, Supported */
151 { 16, "YUV 420 (Not P)", NULL }, /* 10, Not supported, if I had to guess it's YYUYYV */
152 { 12, "YUV 411 (Not P)", renderer_YUV }, /* 11, Supported */
153 { 0, "Raw capturing (BT848)", NULL }, /* 12, Don't support */
154 { 16, "YUV 422 (Planar)", renderer_YUV }, /* 13, Supported */
155 { 12, "YUV 411 (Planar)", renderer_YUV }, /* 14, Supported */
156 { 12, "YUV 420 (Planar)", renderer_YUV }, /* 15, Supported */
157 { 10, "YUV 410 (Planar)", renderer_YUV }, /* 16, Supported */
158 /* FIXME: add YUV420 support */
162 static const int fallback_V4l[] = { 4, 5, 7, 8, 9, 13, 15, 14, 16, 11, -1 };
163 /* Fallback: First try raw formats (Should try yuv first perhaps?), then yuv */
165 /* static const Capture defbox; */
167 static int xioctl(int fd, int request, void * arg)
172 r = video_ioctl (fd, request, arg);
173 } while (-1 == r && EINTR == errno);
178 /* Prepare the capture buffers */
179 static HRESULT V4l_Prepare(Capture *capBox)
181 TRACE("%p: Preparing for %dx%d resolution\n", capBox, capBox->width, capBox->height);
185 if (xioctl(capBox->fd, VIDIOCGMBUF, &capBox->gb_buffers) != -1 &&
186 capBox->gb_buffers.frames)
188 capBox->buffers = capBox->gb_buffers.frames;
189 if (capBox->gb_buffers.frames > 1)
191 TRACE("%p: Using %d/%d buffers\n", capBox,
192 capBox->buffers, capBox->gb_buffers.frames);
194 capBox->pmap = video_mmap( 0, capBox->gb_buffers.size, PROT_READ|PROT_WRITE,
195 MAP_SHARED, capBox->fd, 0 );
196 if (capBox->pmap != MAP_FAILED)
200 capBox->grab_buf = CoTaskMemAlloc(sizeof(struct video_mmap) * capBox->buffers);
201 if (!capBox->grab_buf)
203 video_munmap(capBox->pmap, capBox->gb_buffers.size);
204 return E_OUTOFMEMORY;
207 /* Setup mmap capture buffers. */
208 for (i = 0; i < capBox->buffers; i++)
210 capBox->grab_buf[i].format = capBox->pict.palette;
211 capBox->grab_buf[i].frame = i;
212 capBox->grab_buf[i].width = capBox->width;
213 capBox->grab_buf[i].height = capBox->height;
221 capBox->imagesize = renderlist_V4l[capBox->pict.palette].depth *
222 capBox->height * capBox->width / 8;
223 capBox->grab_data = CoTaskMemAlloc(capBox->imagesize);
224 if (!capBox->grab_data)
225 return E_OUTOFMEMORY;
227 TRACE("Using mmap: %d\n", capBox->mmap);
231 static void V4l_Unprepare(Capture *capBox)
235 for (capBox->curframe = 0; capBox->curframe < capBox->buffers; capBox->curframe++)
236 xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]);
237 video_munmap(capBox->pmap, capBox->gb_buffers.size);
238 CoTaskMemFree(capBox->grab_buf);
241 CoTaskMemFree(capBox->grab_data);
244 HRESULT qcap_driver_destroy(Capture *capBox)
246 TRACE("%p\n", capBox);
248 if( capBox->fd != -1 )
249 video_close(capBox->fd);
250 capBox->CritSect.DebugInfo->Spare[0] = 0;
251 DeleteCriticalSection(&capBox->CritSect);
252 CoTaskMemFree(capBox);
256 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
258 int newheight, newwidth;
259 struct video_window window;
260 VIDEOINFOHEADER *format;
262 TRACE("%p\n", capBox);
264 format = (VIDEOINFOHEADER *) mT->pbFormat;
265 if (format->bmiHeader.biBitCount != 24 ||
266 format->bmiHeader.biCompression != BI_RGB)
268 FIXME("unsupported media type %d %d\n", format->bmiHeader.biBitCount,
269 format->bmiHeader.biCompression );
270 return VFW_E_INVALIDMEDIATYPE;
273 newwidth = format->bmiHeader.biWidth;
274 newheight = format->bmiHeader.biHeight;
276 TRACE("%p -> (%p) - %d %d\n", capBox, mT, newwidth, newheight);
278 if (capBox->height == newheight && capBox->width == newwidth)
281 if(-1 == xioctl(capBox->fd, VIDIOCGWIN, &window))
283 ERR("ioctl(VIDIOCGWIN) failed (%d)\n", errno);
286 window.width = newwidth;
287 window.height = newheight;
288 if (xioctl(capBox->fd, VIDIOCSWIN, &window) == -1)
290 TRACE("using software resize: %dx%d -> %dx%d\n",
291 window.width, window.height, capBox->width, capBox->height);
292 capBox->swresize = TRUE;
296 capBox->height = window.height;
297 capBox->width = window.width;
298 capBox->swresize = FALSE;
300 capBox->outputwidth = window.width;
301 capBox->outputheight = window.height;
305 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
309 mT[0] = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
311 return E_OUTOFMEMORY;
312 vi = CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));
313 mT[0]->cbFormat = sizeof(VIDEOINFOHEADER);
316 CoTaskMemFree(mT[0]);
317 return E_OUTOFMEMORY;
319 mT[0]->majortype = MEDIATYPE_Video;
320 mT[0]->subtype = MEDIASUBTYPE_RGB24;
321 mT[0]->formattype = FORMAT_VideoInfo;
322 mT[0]->bFixedSizeSamples = TRUE;
323 mT[0]->bTemporalCompression = FALSE;
325 mT[0]->lSampleSize = capBox->outputwidth * capBox->outputheight * capBox->bitDepth / 8;
326 TRACE("Output format: %dx%d - %d bits = %u KB\n", capBox->outputwidth,
327 capBox->outputheight, capBox->bitDepth, mT[0]->lSampleSize/1024);
328 vi->rcSource.left = 0; vi->rcSource.top = 0;
329 vi->rcTarget.left = 0; vi->rcTarget.top = 0;
330 vi->rcSource.right = capBox->width; vi->rcSource.bottom = capBox->height;
331 vi->rcTarget.right = capBox->outputwidth; vi->rcTarget.bottom = capBox->outputheight;
332 vi->dwBitRate = capBox->fps * mT[0]->lSampleSize;
333 vi->dwBitErrorRate = 0;
334 vi->AvgTimePerFrame = (LONGLONG)10000000.0 / (LONGLONG)capBox->fps;
335 vi->bmiHeader.biSize = 40;
336 vi->bmiHeader.biWidth = capBox->outputwidth;
337 vi->bmiHeader.biHeight = capBox->outputheight;
338 vi->bmiHeader.biPlanes = 1;
339 vi->bmiHeader.biBitCount = 24;
340 vi->bmiHeader.biCompression = BI_RGB;
341 vi->bmiHeader.biSizeImage = mT[0]->lSampleSize;
342 vi->bmiHeader.biClrUsed = vi->bmiHeader.biClrImportant = 0;
343 vi->bmiHeader.biXPelsPerMeter = 100;
344 vi->bmiHeader.biYPelsPerMeter = 100;
345 mT[0]->pbFormat = (void *)vi;
346 dump_AM_MEDIA_TYPE(mT[0]);
350 HRESULT qcap_driver_get_prop_range( Capture *capBox,
351 VideoProcAmpProperty Property, LONG *pMin, LONG *pMax,
352 LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
354 TRACE("%p -> %d %p %p %p %p %p\n", capBox, Property,
355 pMin, pMax, pSteppingDelta, pDefault, pCapsFlags);
359 case VideoProcAmp_Brightness:
360 *pDefault = capBox->dbrightness;
362 case VideoProcAmp_Contrast:
363 *pDefault = capBox->dcontrast;
365 case VideoProcAmp_Hue:
366 *pDefault = capBox->dhue;
368 case VideoProcAmp_Saturation:
369 *pDefault = capBox->dcolour;
372 FIXME("Not implemented %d\n", Property);
377 *pSteppingDelta = 65536/256;
378 *pCapsFlags = VideoProcAmp_Flags_Manual;
382 HRESULT qcap_driver_get_prop( Capture *capBox,
383 VideoProcAmpProperty Property, LONG *lValue, LONG *Flags )
385 TRACE("%p -> %d %p %p\n", capBox, Property, lValue, Flags);
389 case VideoProcAmp_Brightness:
390 *lValue = capBox->pict.brightness;
392 case VideoProcAmp_Contrast:
393 *lValue = capBox->pict.contrast;
395 case VideoProcAmp_Hue:
396 *lValue = capBox->pict.hue;
398 case VideoProcAmp_Saturation:
399 *lValue = capBox->pict.colour;
402 FIXME("Not implemented %d\n", Property);
405 *Flags = VideoProcAmp_Flags_Manual;
409 HRESULT qcap_driver_set_prop(Capture *capBox, VideoProcAmpProperty Property,
410 LONG lValue, LONG Flags)
412 TRACE("%p -> %d %d %d\n", capBox, Property, lValue, Flags);
416 case VideoProcAmp_Brightness:
417 capBox->pict.brightness = lValue;
419 case VideoProcAmp_Contrast:
420 capBox->pict.contrast = lValue;
422 case VideoProcAmp_Hue:
423 capBox->pict.hue = lValue;
425 case VideoProcAmp_Saturation:
426 capBox->pict.colour = lValue;
429 FIXME("Not implemented %d\n", Property);
433 if (xioctl(capBox->fd, VIDIOCSPICT, &capBox->pict) == -1)
435 ERR("ioctl(VIDIOCSPICT) failed (%d)\n",errno);
441 static void renderer_RGB(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
443 int depth = renderlist_V4l[capBox->pict.palette].depth;
444 int size = capBox->height * capBox->width * depth / 8;
450 memcpy(bufferin, stream, size);
455 while (pointer + offset <= size)
457 bufferin[pointer] = stream[pointer + offset];
459 bufferin[pointer] = stream[pointer + offset];
461 bufferin[pointer] = stream[pointer + offset];
467 ERR("Unknown bit depth %d\n", depth);
472 static void renderer_YUV(const Capture *capBox, LPBYTE bufferin, const BYTE *stream)
474 enum YUV_Format format;
476 switch (capBox->pict.palette)
478 case 7: /* YUV422 - same as YUYV */
485 case 11: /* YUV411 */
488 case 13: /* YUV422P */
491 case 14: /* YUV411P */
494 case 15: /* YUV420P */
497 case 16: /* YUV410P */
501 ERR("Unknown palette %d\n", capBox->pict.palette);
504 YUV_To_RGB24(format, bufferin, stream, capBox->width, capBox->height);
507 static void Resize(const Capture * capBox, LPBYTE output, const BYTE *input)
509 /* the whole image needs to be reversed,
510 because the dibs are messed up in windows */
511 if (!capBox->swresize)
513 int depth = capBox->bitDepth / 8;
514 int inoffset = 0, outoffset = capBox->height * capBox->width * depth;
515 int ow = capBox->width * depth;
516 while (outoffset > 0)
520 for (x = 0; x < ow; x++)
521 output[outoffset + x] = input[inoffset + x];
528 HBITMAP bmp_s, bmp_d;
529 int depth = capBox->bitDepth / 8;
530 int inoffset = 0, outoffset = (capBox->outputheight) * capBox->outputwidth * depth;
531 int ow = capBox->outputwidth * depth;
534 /* FIXME: Improve software resizing: add error checks and optimize */
536 myarray = CoTaskMemAlloc(capBox->outputwidth * capBox->outputheight * depth);
537 dc_s = CreateCompatibleDC(NULL);
538 dc_d = CreateCompatibleDC(NULL);
539 bmp_s = CreateBitmap(capBox->width, capBox->height, 1, capBox->bitDepth, input);
540 bmp_d = CreateBitmap(capBox->outputwidth, capBox->outputheight, 1, capBox->bitDepth, NULL);
541 SelectObject(dc_s, bmp_s);
542 SelectObject(dc_d, bmp_d);
543 StretchBlt(dc_d, 0, 0, capBox->outputwidth, capBox->outputheight,
544 dc_s, 0, 0, capBox->width, capBox->height, SRCCOPY);
545 GetBitmapBits(bmp_d, capBox->outputwidth * capBox->outputheight * depth, myarray);
546 while (outoffset > 0)
551 for (i = 0; i < ow; i++)
552 output[outoffset + i] = myarray[inoffset + i];
555 CoTaskMemFree(myarray);
563 static void V4l_GetFrame(Capture * capBox, unsigned char ** pInput)
567 if (xioctl(capBox->fd, VIDIOCSYNC, &capBox->grab_buf[capBox->curframe]) == -1)
568 WARN("Syncing ioctl failed: %d\n", errno);
570 *pInput = capBox->pmap + capBox->gb_buffers.offsets[capBox->curframe];
575 while ((retval = video_read(capBox->fd, capBox->grab_data, capBox->imagesize)) == -1)
576 if (errno != EAGAIN) break;
578 WARN("Error occurred while reading from device: %s\n", strerror(errno));
579 *pInput = (unsigned char*) capBox->grab_data;
583 static void V4l_FreeFrame(Capture * capBox)
588 if (xioctl(capBox->fd, VIDIOCMCAPTURE, &capBox->grab_buf[capBox->curframe]) == -1)
589 ERR("Freeing frame for capture failed: %s\n", strerror(errno));
591 if (++capBox->curframe == capBox->buffers)
592 capBox->curframe = 0;
595 static DWORD WINAPI ReadThread(LPVOID lParam)
597 Capture * capBox = lParam;
599 IMediaSample *pSample = NULL;
600 ULONG framecount = 0;
601 unsigned char *pTarget, *pInput, *pOutput;
603 hr = V4l_Prepare(capBox);
607 pOutput = CoTaskMemAlloc(capBox->width * capBox->height * capBox->bitDepth / 8);
608 capBox->curframe = 0;
610 V4l_FreeFrame(capBox);
611 } while (capBox->curframe != 0);
615 EnterCriticalSection(&capBox->CritSect);
618 hr = BaseOutputPinImpl_GetDeliveryBuffer((BaseOutputPin *)capBox->pOut, &pSample, NULL, NULL, 0);
623 if (!capBox->swresize)
624 len = capBox->height * capBox->width * capBox->bitDepth / 8;
626 len = capBox->outputheight * capBox->outputwidth * capBox->bitDepth / 8;
627 IMediaSample_SetActualDataLength(pSample, len);
629 len = IMediaSample_GetActualDataLength(pSample);
630 TRACE("Data length: %d KB\n", len / 1024);
632 IMediaSample_GetPointer(pSample, &pTarget);
633 /* FIXME: Check return values.. */
634 V4l_GetFrame(capBox, &pInput);
635 capBox->renderer(capBox, pOutput, pInput);
636 Resize(capBox, pTarget, pOutput);
637 hr = BaseOutputPinImpl_Deliver((BaseOutputPin *)capBox->pOut, pSample);
638 TRACE("%p -> Frame %u: %x\n", capBox, ++framecount, hr);
639 IMediaSample_Release(pSample);
640 V4l_FreeFrame(capBox);
642 LeaveCriticalSection(&capBox->CritSect);
643 if (FAILED(hr) && hr != VFW_E_NOT_CONNECTED)
645 ERR("Received error: %x\n", hr);
649 LeaveCriticalSection(&capBox->CritSect);
650 CoTaskMemFree(pOutput);
655 CoTaskMemFree(pOutput);
656 V4l_Unprepare(capBox);
657 LeaveCriticalSection(&capBox->CritSect);
660 capBox->thread = 0; capBox->stopped = 1;
661 FIXME("Stop IFilterGraph\n");
665 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
670 TRACE("%p -> (%p)\n", capBox, state);
672 if (*state == State_Running) return S_OK;
674 EnterCriticalSection(&capBox->CritSect);
678 if (*state == State_Stopped)
680 *state = State_Running;
681 if (!capBox->iscommitted++)
683 IMemAllocator * pAlloc = NULL;
684 ALLOCATOR_PROPERTIES ap, actual;
688 if (!capBox->swresize)
689 ap.cbBuffer = capBox->width * capBox->height;
691 ap.cbBuffer = capBox->outputwidth * capBox->outputheight;
692 ap.cbBuffer = (ap.cbBuffer * capBox->bitDepth) / 8;
696 out = (BaseOutputPin *)capBox->pOut;
697 hr = IMemInputPin_GetAllocator(out->pMemInputPin, &pAlloc);
700 hr = IMemAllocator_SetProperties(pAlloc, &ap, &actual);
703 hr = IMemAllocator_Commit(pAlloc);
706 IMemAllocator_Release(pAlloc);
708 TRACE("Committing allocator: %x\n", hr);
711 thread = CreateThread(NULL, 0, ReadThread, capBox, 0, NULL);
714 capBox->thread = thread;
715 SetThreadPriority(thread, THREAD_PRIORITY_LOWEST);
716 LeaveCriticalSection(&capBox->CritSect);
719 ERR("Creating thread failed.. %u\n", GetLastError());
720 LeaveCriticalSection(&capBox->CritSect);
724 ResumeThread(capBox->thread);
725 *state = State_Running;
726 LeaveCriticalSection(&capBox->CritSect);
730 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
732 TRACE("%p -> (%p)\n", capBox, state);
734 if (*state == State_Paused)
736 if (*state == State_Stopped)
737 qcap_driver_run(capBox, state);
739 EnterCriticalSection(&capBox->CritSect);
740 *state = State_Paused;
741 SuspendThread(capBox->thread);
742 LeaveCriticalSection(&capBox->CritSect);
747 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
749 TRACE("%p -> (%p)\n", capBox, state);
751 if (*state == State_Stopped)
754 EnterCriticalSection(&capBox->CritSect);
758 if (*state == State_Paused)
759 ResumeThread(capBox->thread);
762 if (capBox->iscommitted)
764 IMemInputPin *pMem = NULL;
765 IMemAllocator * pAlloc = NULL;
766 IPin *pConnect = NULL;
769 capBox->iscommitted = 0;
771 hr = IPin_ConnectedTo(capBox->pOut, &pConnect);
774 hr = IPin_QueryInterface(pConnect, &IID_IMemInputPin, (void **) &pMem);
777 hr = IMemInputPin_GetAllocator(pMem, &pAlloc);
780 hr = IMemAllocator_Decommit(pAlloc);
783 IMemAllocator_Release(pAlloc);
786 IMemInputPin_Release(pMem);
789 IPin_Release(pConnect);
791 if (hr != S_OK && hr != VFW_E_NOT_COMMITTED)
792 WARN("Decommitting allocator: %x\n", hr);
794 V4l_Unprepare(capBox);
797 *state = State_Stopped;
798 LeaveCriticalSection(&capBox->CritSect);
802 Capture * qcap_driver_init( IPin *pOut, USHORT card )
804 Capture * capBox = NULL;
806 struct video_capability capa;
807 struct video_picture pict;
808 struct video_window window;
813 capBox = CoTaskMemAlloc(sizeof(Capture));
817 /* capBox->vtbl = &defboxVtbl; */
819 InitializeCriticalSection( &capBox->CritSect );
820 capBox->CritSect.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": Capture.CritSect");
822 sprintf(device, "/dev/video%i", card);
823 TRACE("opening %s\n", device);
824 capBox->fd = video_open(device, O_RDWR | O_NONBLOCK);
825 if (capBox->fd == -1)
827 WARN("open failed (%d)\n", errno);
831 memset(&capa, 0, sizeof(capa));
833 if (xioctl(capBox->fd, VIDIOCGCAP, &capa) == -1)
835 WARN("ioctl(VIDIOCGCAP) failed (%d)\n", errno);
839 if (!(capa.type & VID_TYPE_CAPTURE))
841 WARN("not a video capture device\n");
845 TRACE("%d inputs on %s\n", capa.channels, capa.name );
847 if (xioctl(capBox->fd, VIDIOCGPICT, &pict) == -1)
849 ERR("ioctl(VIDIOCGPICT) failed (%d)\n", errno );
853 TRACE("depth %d palette %d (%s) hue %d color %d contrast %d\n",
854 pict.depth, pict.palette, renderlist_V4l[pict.palette].name,
855 pict.hue, pict.colour, pict.contrast );
857 capBox->dbrightness = pict.brightness;
858 capBox->dcolour = pict.colour;
859 capBox->dhue = pict.hue;
860 capBox->dcontrast = pict.contrast;
862 if (!renderlist_V4l[pict.palette].renderer)
864 int palet = pict.palette, i;
866 TRACE("No renderer available for %s, falling back to defaults\n",
867 renderlist_V4l[pict.palette].name);
868 capBox->renderer = NULL;
869 for (i = 0; fallback_V4l[i] >=0 ; i++)
871 int n = fallback_V4l[i];
873 if (renderlist_V4l[n].renderer == NULL)
876 pict.depth = renderlist_V4l[n].depth;
878 if (xioctl(capBox->fd, VIDIOCSPICT, &pict) == -1)
880 TRACE("Could not render with %s (%d)\n",
881 renderlist_V4l[n].name, n);
884 TRACE("using renderer %s (%d)\n",
885 renderlist_V4l[n].name, n);
886 capBox->renderer = renderlist_V4l[n].renderer;
890 if (!capBox->renderer)
892 ERR("video format %s isn't available\n",
893 renderlist_V4l[palet].name);
899 TRACE("Using the suggested format\n");
900 capBox->renderer = renderlist_V4l[pict.palette].renderer;
902 memcpy(&capBox->pict, &pict, sizeof(struct video_picture));
904 memset(&window, 0, sizeof(window));
905 if (xioctl(capBox->fd, VIDIOCGWIN, &window) == -1)
907 WARN("VIDIOCGWIN failed (%d)\n", errno);
911 capBox->height = capBox->outputheight = window.height;
912 capBox->width = capBox->outputwidth = window.width;
913 capBox->swresize = FALSE;
914 capBox->bitDepth = 24;
918 capBox->curframe = 0;
919 capBox->iscommitted = 0;
921 TRACE("format: %d bits - %d x %d\n", capBox->bitDepth, capBox->width, capBox->height);
927 qcap_driver_destroy( capBox );
934 Capture * qcap_driver_init( IPin *pOut, USHORT card )
937 "The v4l headers were not available at compile time,\n"
938 "so video capture support is not available.\n";
943 #define FAIL_WITH_ERR \
944 ERR("v4l absent: shouldn't be called\n"); \
947 HRESULT qcap_driver_destroy(Capture *capBox)
952 HRESULT qcap_driver_set_format(Capture *capBox, AM_MEDIA_TYPE * mT)
957 HRESULT qcap_driver_get_format(const Capture *capBox, AM_MEDIA_TYPE ** mT)
962 HRESULT qcap_driver_get_prop_range( Capture *capBox,
963 VideoProcAmpProperty Property, LONG *pMin, LONG *pMax,
964 LONG *pSteppingDelta, LONG *pDefault, LONG *pCapsFlags )
969 HRESULT qcap_driver_get_prop(Capture *capBox,
970 VideoProcAmpProperty Property, LONG *lValue, LONG *Flags)
975 HRESULT qcap_driver_set_prop(Capture *capBox, VideoProcAmpProperty Property,
976 LONG lValue, LONG Flags)
981 HRESULT qcap_driver_run(Capture *capBox, FILTER_STATE *state)
986 HRESULT qcap_driver_pause(Capture *capBox, FILTER_STATE *state)
991 HRESULT qcap_driver_stop(Capture *capBox, FILTER_STATE *state)
996 #endif /* HAVE_LINUX_VIDEODEV_H */