Can you make a small test : nmake webcam-test-visu-c
... launch webcam-test-visu-c.exe Is it the same result ? Laurent 张源 a écrit : > > > 2009/7/1 Laurent Tarrisse <laur...@mbdsys.com <mailto:laur...@mbdsys.com>> > > Laurent Tarrisse a écrit : > > 张源 a écrit : > > > >> I have built qutecom-2-2-3faed9597730(debug),with vs 2005 on > windows > >> xp Chinese simplified but there are some problems with Qutecom when > >> making a webcam preview or a video call . > >> > >> The problems are as follows: when entering Video settings ,then > click > >> Webcam Preview button ,after a while ,the Label on the right > side just > >> shows a gray rectangle. The Video call is also just shows a gray > >> rectangle,and after a while it crashed . > >> Webcam Preview.png (/image/png/) 5K > >> > <?ui=2&ik=ab85a7e087&view=att&th=1223455e9356b51f&attid=0.1&disp=attd> > >> The piximage has been sucessfully catched by WebcamDriver. > >> I found the problem may lie in this code section: > >> pixertool.cpp > >> > >> *...* > >> pixerrorcode* pix_convert*(int flags, piximage * img_dst, > piximage * > >> img_src) { > >> *...* > >> if (*img_convert*(&avp_target, pix_fmt_target, > >> &avp_tmp_target, pix_fmt_source, > >> img_dst->width, img_dst->height) *== -1*) { > >> av_free(buf_tmp_target); > >> return PIX_NOK; > >> } > >> * ...* > >> } > >> > > Can you give me img_src->palette and img_src->dst ? > > > Oups, > > it is img_src->palette and img_dst->palette. > > Laurent > >> *...* > >> when calling * pix_convert*() ,the function *img_convert()* allways > >> return -1 which means the image conversion fails. > >> > >> Has anyone face the same problem ,please help me > >> > >> > ------------------------------------------------------------------------ > >> > >> > ------------------------------------------------------------------------ > >> > >> _______________________________________________ > >> QuteCom-dev mailing list > >> QuteCom-dev@lists.qutecom.org > <mailto:QuteCom-dev@lists.qutecom.org> > >> http://lists.qutecom.org/mailman/listinfo/qutecom-dev > >> > >> > > > > _______________________________________________ > > QuteCom-dev mailing list > > QuteCom-dev@lists.qutecom.org <mailto:QuteCom-dev@lists.qutecom.org> > > http://lists.qutecom.org/mailman/listinfo/qutecom-dev > > > > _______________________________________________ > QuteCom-dev mailing list > QuteCom-dev@lists.qutecom.org <mailto:QuteCom-dev@lists.qutecom.org> > http://lists.qutecom.org/mailman/listinfo/qutecom-dev > > > Thank you ! > the functions are called as follows:1――>2――>3 > *1 *void QtVideoSettings::frameCapturedEventHandler (IWebcamDriver * > sender, piximage * image) {//重要函数 > > * ...* > QSize qs(_ui->webcamPreviewLabel->width(), > _ui->webcamPreviewLabel->height()); > QImage tmpRgbImage(qs, QImage::Format_RGB32); > *QtVideoQt::convertPixImageToQImage(image, qs, &tmpRgbImage);* > QPixmap tmp = QPixmap::fromImage(tmpRgbImage); > * ...* > > } > *2 * void QtVideoQt::convertPixImageToQImage(piximage* pixImage, const > QSize& size, QImage* image) { > * ...* > piximage resizedPixImage; > resizedPixImage.palette = PIX_OSI_RGB32; > resizedPixImage.width = image->width(); > resizedPixImage.height = image->height(); > resizedPixImage.data = image->bits(); > > * pix_convert(PIX_NO_FLAG, &resizedPixImage, pixImage); > * //测试// > } > > * so the img_dst->palette == PIX_OSI_RGB32 img_src->palette == > PIX_OSI_YUV420P* > *3* pixerrorcode pix_convert(int flags, piximage * img_dst, piximage * > img_src) { > > * ...* > enum PixelFormat pix_fmt_source > =(PixelFormat)pix_ffmpeg_from_pix_osi(img_src->palette); > enum PixelFormat pix_fmt_target = > (PixelFormat)pix_ffmpeg_from_pix_osi(img_dst->palette); > > > *...* > > > #ifndef HAVE_SWSCALE > //TODO optimize this part but will need the preparation of contexts > ImgReSampleContext * resample_context = > img_resample_init(img_dst->width, img_dst->height, > img_src->width, img_src->height); > > if (!resample_context) { > return PIX_NOK; > } > > AVPicture avp_tmp_target; > > //we need to prepare a tmp buffer > uint8_t * buf_tmp_target = (uint8_t > *)av_malloc(avpicture_get_size(pix_fmt_source, img_dst->width, > img_dst->height) * sizeof(uint8_t)); > avpicture_fill(&avp_tmp_target, buf_tmp_target, pix_fmt_source, > img_dst->width, img_dst->height); > // > > //do the resampling > img_resample(resample_context, &avp_tmp_target, &avp_source); > img_resample_close(resample_context); > // > > //do the conversion > if (*img_convert*(&avp_target, pix_fmt_target, > &avp_tmp_target, pix_fmt_source, > img_dst->width, img_dst->height) == -1) { > av_free(buf_tmp_target); > return PIX_NOK;//转换没有成功 > } > * ...* > } > *img_dst->palette ： PIX_OSI_RGB32* > * img_src->palette ： PIX_OSI_YUV420P* > pix_fmt_target : *PIX_FMT_BGR32* > pix_fmt_source : *PIX_FMT_YUV420P* > img_convert()is a function in ffmpeg library,so the problems might be > in parameters passed into it .It involves encoding and decoding which > I totally don't know how to deal with . > Thanks again ! > > _______________________________________________ QuteCom-dev mailing list QuteCom-dev@lists.qutecom.org http://lists.qutecom.org/mailman/listinfo/qutecom-dev
