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-rw-r--r--dvbdevice.c121
1 files changed, 55 insertions, 66 deletions
diff --git a/dvbdevice.c b/dvbdevice.c
index 533a65ff..17b18cd1 100644
--- a/dvbdevice.c
+++ b/dvbdevice.c
@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: dvbdevice.c 1.142 2005/12/29 11:24:02 kls Exp $
+ * $Id: dvbdevice.c 1.143 2005/12/29 13:49:09 kls Exp $
*/
#include "dvbdevice.h"
@@ -480,95 +480,84 @@ cSpuDecoder *cDvbDevice::GetSpuDecoder(void)
return spuDecoder;
}
-bool cDvbDevice::GrabImage(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY)
+uchar *cDvbDevice::GrabImage(int &Size, bool Jpeg, int Quality, int SizeX, int SizeY)
{
if (devVideoIndex < 0)
- return false;
+ return NULL;
char buffer[PATH_MAX];
snprintf(buffer, sizeof(buffer), "%s%d", DEV_VIDEO, devVideoIndex);
int videoDev = open(buffer, O_RDWR);
- if (videoDev < 0)
- LOG_ERROR_STR(buffer);
if (videoDev >= 0) {
- int result = 0;
+ uchar *result = NULL;
struct video_mbuf mbuf;
- result |= ioctl(videoDev, VIDIOCGMBUF, &mbuf);
- if (result == 0) {
+ 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;
- result |= ioctl(videoDev, VIDIOCGCAP, &vc);
- 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;
- result |= ioctl(videoDev, VIDIOCMCAPTURE, &vm);
- result |= ioctl(videoDev, VIDIOCSYNC, &vm.frame);
- // 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 (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;
-
- isyslog("grabbing to %s (%s %d %d %d)", FileName, Jpeg ? "JPEG" : "PNM", Quality, vm.width, vm.height);
- FILE *f = fopen(FileName, "wb");
- if (f) {
- if (Jpeg) {
- // write JPEG file:
- int JpegImageSize;
- uchar *JpegImage = RgbToJpeg(mem, vm.width, vm.height, JpegImageSize, Quality);
- if (JpegImage) {
- if (fwrite(JpegImage, JpegImageSize, 1, f) != 1) {
- LOG_ERROR_STR(FileName);
- result |= 1;
- }
- delete JpegImage;
+ if (Quality < 0)
+ Quality = 100;
+
+ isyslog("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 {
- esyslog("ERROR: failed to convert image to JPEG");
- result |= 1;
- }
- }
- else {
- // write PNM file:
- if (fprintf(f, "P6\n%d\n%d\n255\n", vm.width, vm.height) < 0 ||
- fwrite(mem, vm.width * vm.height * 3, 1, f) != 1) {
- LOG_ERROR_STR(FileName);
- result |= 1;
+ // 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);
+ }
+ else
+ esyslog("ERROR: failed to convert image to PNM");
}
}
- fclose(f);
- }
- else {
- LOG_ERROR_STR(FileName);
- result |= 1;
}
munmap(mem, msize);
}
else
- result |= 1;
+ esyslog("ERROR: failed to memmap video device");
}
close(videoDev);
- return result == 0;
+ return result;
}
- return false;
+ else
+ LOG_ERROR_STR(buffer);
+ return NULL;
}
void cDvbDevice::SetVideoDisplayFormat(eVideoDisplayFormat VideoDisplayFormat)