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mjpg-streamer: fix YUV capture mode 

Update to r182-experimental (071481e626) broke YUV
capture mode in input_uvc. This patch fixes it.

Tested on ar71xx with Logitech C170

Signed-off-by: Mantas Pucka <mantas@8devices.com>
This commit is contained in:
Mantas Pucka 2015-03-11 14:23:35 +02:00
parent b17a973f14
commit 84f3028036
1 changed files with 58 additions and 0 deletions
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58
multimedia/mjpg-streamer/patches/050-fix-yuv-capture.patch Normal file
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@ -0,0 +1,58 @@
Binary files a/ipkg-ar71xx/mjpg-streamer/usr/lib/input_uvc.so and b/ipkg-ar71xx/mjpg-streamer/usr/lib/input_uvc.so differ
diff -ur a/plugins/input_uvc/input_uvc.c b/plugins/input_uvc/input_uvc.c
--- a/plugins/input_uvc/input_uvc.c 2015-03-02 09:14:05.000000000 +0200
+++ b/plugins/input_uvc/input_uvc.c 2015-03-02 09:18:22.000000000 +0200
@@ -311,6 +311,10 @@
}
memset(cams[id].videoIn, 0, sizeof(struct vdIn));
+ /* Non-MJPEG formats seem to fail with unlimited FPS */
+ if (format != V4L2_PIX_FMT_MJPEG && fps == -1)
+ fps = 15;
+
/* display the parsed values */
IPRINT("Using V4L2 device.: %s\n", dev);
IPRINT("Desired Resolution: %i x %i\n", width, height);
diff -ur a/plugins/input_uvc/jpeg_utils.c b/plugins/input_uvc/jpeg_utils.c
--- a/plugins/input_uvc/jpeg_utils.c 2015-03-02 09:17:02.000000000 +0300
+++ b/plugins/input_uvc/jpeg_utils.c 2015-03-02 09:25:18.000000000 +0200
@@ -198,7 +198,7 @@
}
row_pointer = (JSAMPROW*)line_buffer;
- jpeg_write_scanlines(&cinfo, row_pointer, 1);
+ jpeg_write_scanlines(&cinfo, &row_pointer, 1);
}
} else if (vd->formatIn == V4L2_PIX_FMT_RGB565) {
while(cinfo.next_scanline < vd->height) {
@@ -220,7 +220,7 @@
}
row_pointer = (JSAMPROW*)line_buffer;
- jpeg_write_scanlines(&cinfo, row_pointer, 1);
+ jpeg_write_scanlines(&cinfo, &row_pointer, 1);
}
} else if (vd->formatIn == V4L2_PIX_FMT_RGB24) {
jpeg_write_scanlines(&cinfo, (JSAMPROW*)vd->framebuffer, vd->height);
diff -ur a/plugins/input_uvc/v4l2uvc.c b/plugins/input_uvc/v4l2uvc.c
--- a/plugins/input_uvc/v4l2uvc.c 2015-03-02 09:14:05.000000000 +0200
+++ b/plugins/input_uvc/v4l2uvc.c 2015-03-02 09:22:09.000000000 +0200
@@ -338,11 +338,15 @@
vd->frame_period_time = 1000/vd->fps; // calcualate frame period time in ms
IPRINT("Frame period time ......: %ld ms\n", vd->frame_period_time);
- // set FPS to maximum in order to minimize the lagging
memset(setfps, 0, sizeof(struct v4l2_streamparm));
setfps->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
setfps->parm.capture.timeperframe.numerator = 1;
- setfps->parm.capture.timeperframe.denominator = 255;
+ if (vd->formatIn == V4L2_PIX_FMT_MJPEG)
+ // set FPS to maximum in order to minimize the lagging
+ setfps->parm.capture.timeperframe.denominator = 255;
+ else
+ setfps->parm.capture.timeperframe.denominator = vd->fps;
+
ret = xioctl(vd->fd, VIDIOC_S_PARM, setfps);
if (ret) {
perror("Unable to set the FPS\n");