On Mon, 29 Dec 2014 11:00:03 -0400 Joe Howse <josephho...@nummist.com> wrote:
> Add support in the PS3 Eye driver for QVGA capture at higher > frame rates: 187, 150, and 137 FPS. This functionality is valuable > because the PS3 Eye is popular for computer vision projects and no > other camera in its price range supports such high frame rates. > > Correct a QVGA mode that was listed as 40 FPS. It is really 37 FPS > (half of 75 FPS). > > Tests confirm that the nominal frame rates are achieved. > > Signed-off-by: Joe Howse <josephho...@nummist.com> Tested-by: Antonio Ospite <a...@ao2.it> Thanks Joe. I noticed that qv4l2 displays max 60fps even though from the video I can perceive the higher framerate, and same happens in guvcview. gst-inspect-1.0 won't even let me set framerates higher than 75 so I didn't test with GStreamer. I know that the camera is also able to stream raw Bayer data which requires less bandwidth than the default YUYV, although the driver does not currently expose that; maybe some higher framerates can be achieved also at VGA with Bayer output. In case you wanted to explore that remember to set supported framerates appropriately in ov772x_framerates for the 4 combinations of formats and resolutions (i.e. Bayer outputs will support more framerates). Ciao, Antonio > --- > drivers/media/usb/gspca/ov534.c | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c > index 90f0d63..a9c866d 100644 > --- a/drivers/media/usb/gspca/ov534.c > +++ b/drivers/media/usb/gspca/ov534.c > @@ -12,6 +12,8 @@ > * PS3 Eye camera enhanced by Richard Kaswy http://kaswy.free.fr > * PS3 Eye camera - brightness, contrast, awb, agc, aec controls > * added by Max Thrun <bear2...@gmail.com> > + * PS3 Eye camera - FPS range extended by Joseph Howse > + * <josephho...@nummist.com> http://nummist.com > * > * This program is free software; you can redistribute it and/or modify > * it under the terms of the GNU General Public License as published by > @@ -116,7 +118,7 @@ static const struct v4l2_pix_format ov767x_mode[] = { > .colorspace = V4L2_COLORSPACE_JPEG}, > }; > > -static const u8 qvga_rates[] = {125, 100, 75, 60, 50, 40, 30}; > +static const u8 qvga_rates[] = {187, 150, 137, 125, 100, 75, 60, 50, 37, 30}; > static const u8 vga_rates[] = {60, 50, 40, 30, 15}; > > static const struct framerates ov772x_framerates[] = { > @@ -769,12 +771,16 @@ static void set_frame_rate(struct gspca_dev *gspca_dev) > {15, 0x03, 0x41, 0x04}, > }; > static const struct rate_s rate_1[] = { /* 320x240 */ > +/* {205, 0x01, 0xc1, 0x02}, * 205 FPS: video is partly corrupt */ > + {187, 0x01, 0x81, 0x02}, /* 187 FPS or below: video is valid */ > + {150, 0x01, 0xc1, 0x04}, > + {137, 0x02, 0xc1, 0x02}, > {125, 0x02, 0x81, 0x02}, > {100, 0x02, 0xc1, 0x04}, > {75, 0x03, 0xc1, 0x04}, > {60, 0x04, 0xc1, 0x04}, > {50, 0x02, 0x41, 0x04}, > - {40, 0x03, 0x41, 0x04}, > + {37, 0x03, 0x41, 0x04}, > {30, 0x04, 0x41, 0x04}, > }; > > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Antonio Ospite http://ao2.it A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
