From 7b2085b575777d1fbcf93acd03a96ae307847611 Mon Sep 17 00:00:00 2001 From: Klaus Schmidinger Date: Mon, 22 Dec 2008 10:26:16 +0100 Subject: Changed cDvbDevice::GrabImage() to use V4L2 --- CONTRIBUTORS | 1 + HISTORY | 3 +- dvbdevice.c | 148 ++++++++++++++++++++++++++++++++++++----------------------- 3 files changed, 94 insertions(+), 58 deletions(-) diff --git a/CONTRIBUTORS b/CONTRIBUTORS index 5de7402a..ff452acf 100644 --- a/CONTRIBUTORS +++ b/CONTRIBUTORS @@ -1478,6 +1478,7 @@ Marco Schl for a patch that was used to implement handling of DVB-S2 for fixing setting the date in the channel display of the classic and sttng skins, to avoid unnecessary OSD access + for changing cDvbDevice::GrabImage() to use V4L2 Jürgen Schmitz for reporting a bug in displaying the current channel when switching via the SVDRP diff --git a/HISTORY b/HISTORY index d2adef99..35a66b50 100644 --- a/HISTORY +++ b/HISTORY @@ -5849,9 +5849,10 @@ Video Disk Recorder Revision History the patch from ftp://ftp.cadsoft.de/vdr/Developer/av7110_v4ldvb_api5_audiobuf_test_1.diff to the driver (thanks to Oliver Endriss). -2008-12-20: Version 1.7.3 +2008-12-22: Version 1.7.3 - Updated the Russian OSD texts (thanks to Oleg Roitburd). - Fixed handling the 'pointer field' in generating and parsing PAT/PMT (thanks to Frank Schmirler). - Fixed handling modulation types for DVB-S transponders when processing the NIT. +- Changed cDvbDevice::GrabImage() to use V4L2 (thanks to Marco Schlüßler). diff --git a/dvbdevice.c b/dvbdevice.c index e0b05a15..c3fe6868 100644 --- a/dvbdevice.c +++ b/dvbdevice.c @@ -4,13 +4,13 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: dvbdevice.c 2.6 2008/12/13 14:38:07 kls Exp $ + * $Id: dvbdevice.c 2.7 2008/12/22 10:24:10 kls Exp $ */ #include "dvbdevice.h" #include #include -#include +#include #include #include #include @@ -604,69 +604,103 @@ uchar *cDvbDevice::GrabImage(int &Size, bool Jpeg, int Quality, int SizeX, int S int videoDev = open(buffer, O_RDWR); if (videoDev >= 0) { uchar *result = NULL; - struct video_mbuf mbuf; - if (ioctl(videoDev, VIDIOCGMBUF, &mbuf) == 0) { - int msize = mbuf.size; - unsigned char *mem = (unsigned char *)mmap(0, msize, PROT_READ | PROT_WRITE, MAP_SHARED, videoDev, 0); - if (mem && mem != (unsigned char *)-1) { - // set up the size and RGB - struct video_capability vc; - if (ioctl(videoDev, VIDIOCGCAP, &vc) == 0) { - struct video_mmap vm; - vm.frame = 0; - if ((SizeX > 0) && (SizeX <= vc.maxwidth) && - (SizeY > 0) && (SizeY <= vc.maxheight)) { - vm.width = SizeX; - vm.height = SizeY; - } - else { - vm.width = vc.maxwidth; - vm.height = vc.maxheight; - } - vm.format = VIDEO_PALETTE_RGB24; - if (ioctl(videoDev, VIDIOCMCAPTURE, &vm) == 0 && ioctl(videoDev, VIDIOCSYNC, &vm.frame) == 0) { - // make RGB out of BGR: - int memsize = vm.width * vm.height; - unsigned char *mem1 = mem; - for (int i = 0; i < memsize; i++) { - unsigned char tmp = mem1[2]; - mem1[2] = mem1[0]; - mem1[0] = tmp; - mem1 += 3; - } - - if (Quality < 0) - Quality = 100; - - dsyslog("grabbing to %s %d %d %d", Jpeg ? "JPEG" : "PNM", Quality, vm.width, vm.height); - if (Jpeg) { - // convert to JPEG: - result = RgbToJpeg(mem, vm.width, vm.height, Size, Quality); - if (!result) - esyslog("ERROR: failed to convert image to JPEG"); - } - else { - // convert to PNM: - char buf[32]; - snprintf(buf, sizeof(buf), "P6\n%d\n%d\n255\n", vm.width, vm.height); - int l = strlen(buf); - int bytes = memsize * 3; - Size = l + bytes; - result = MALLOC(uchar, Size); - if (result) { - memcpy(result, buf, l); - memcpy(result + l, mem, bytes); + // set up the size and RGB + v4l2_format fmt; + memset(&fmt, 0, sizeof(fmt)); + fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + fmt.fmt.pix.width = SizeX; + fmt.fmt.pix.height = SizeY; + fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_BGR24; + fmt.fmt.pix.field = V4L2_FIELD_ANY; + if (ioctl(videoDev, VIDIOC_S_FMT, &fmt) == 0) { + v4l2_requestbuffers reqBuf; + memset(&reqBuf, 0, sizeof(reqBuf)); + reqBuf.count = 2; + reqBuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + reqBuf.memory = V4L2_MEMORY_MMAP; + if (ioctl(videoDev, VIDIOC_REQBUFS, &reqBuf) >= 0) { + v4l2_buffer mbuf; + memset(&mbuf, 0, sizeof(mbuf)); + mbuf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + mbuf.memory = V4L2_MEMORY_MMAP; + if (ioctl(videoDev, VIDIOC_QUERYBUF, &mbuf) == 0) { + int msize = mbuf.length; + unsigned char *mem = (unsigned char *)mmap(0, msize, PROT_READ | PROT_WRITE, MAP_SHARED, videoDev, 0); + if (mem && mem != (unsigned char *)-1) { + v4l2_buffer buf; + memset(&buf, 0, sizeof(buf)); + buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + buf.memory = V4L2_MEMORY_MMAP; + buf.index = 0; + if (ioctl(videoDev, VIDIOC_QBUF, &buf) == 0) { + v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + if (ioctl (videoDev, VIDIOC_STREAMON, &type) == 0) { + memset(&buf, 0, sizeof(buf)); + buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + buf.memory = V4L2_MEMORY_MMAP; + buf.index = 0; + if (ioctl(videoDev, VIDIOC_DQBUF, &buf) == 0) { + if (ioctl(videoDev, VIDIOC_STREAMOFF, &type) == 0) { + // make RGB out of BGR: + int memsize = fmt.fmt.pix.width * fmt.fmt.pix.height; + unsigned char *mem1 = mem; + for (int i = 0; i < memsize; i++) { + unsigned char tmp = mem1[2]; + mem1[2] = mem1[0]; + mem1[0] = tmp; + mem1 += 3; + } + + if (Quality < 0) + Quality = 100; + + dsyslog("grabbing to %s %d %d %d", Jpeg ? "JPEG" : "PNM", Quality, fmt.fmt.pix.width, fmt.fmt.pix.height); + if (Jpeg) { + // convert to JPEG: + result = RgbToJpeg(mem, fmt.fmt.pix.width, fmt.fmt.pix.height, Size, Quality); + if (!result) + esyslog("ERROR: failed to convert image to JPEG"); + } + else { + // convert to PNM: + char buf[32]; + snprintf(buf, sizeof(buf), "P6\n%d\n%d\n255\n", fmt.fmt.pix.width, fmt.fmt.pix.height); + int l = strlen(buf); + int bytes = memsize * 3; + Size = l + bytes; + result = MALLOC(uchar, Size); + if (result) { + memcpy(result, buf, l); + memcpy(result + l, mem, bytes); + } + else + esyslog("ERROR: failed to convert image to PNM"); + } + } + else + esyslog("ERROR: video device VIDIOC_STREAMOFF failed"); + } + else + esyslog("ERROR: video device VIDIOC_DQBUF failed"); } else - esyslog("ERROR: failed to convert image to PNM"); + esyslog("ERROR: video device VIDIOC_STREAMON failed"); } + else + esyslog("ERROR: video device VIDIOC_QBUF failed"); + munmap(mem, msize); } + else + esyslog("ERROR: failed to memmap video device"); } - munmap(mem, msize); + else + esyslog("ERROR: video device VIDIOC_QUERYBUF failed"); } else - esyslog("ERROR: failed to memmap video device"); + esyslog("ERROR: video device VIDIOC_REQBUFS failed"); } + else + esyslog("ERROR: video device VIDIOC_S_FMT failed"); close(videoDev); return result; } -- cgit v1.2.3