On Thu, Nov 3, 2016 at 8:11 AM, Luca Barbato <lu_zero@xxxxxxxxxx> wrote: > On 03/11/2016 14:21, Attila Kinali wrote: >> On Wed, 2 Nov 2016 23:10:41 -0700 >> Matt Ranostay <matt@ranostay.consulting> wrote: >> >>> >>> So does anyone know of any software that is using V4L2_PIX_FMT_Y12 >>> currently? Want to test my driver but seems there isn't anything that >>> uses that format (ffmpeg, mplayer, etc). >>> >>> Raw data seems correct but would like to visualize it :). Suspect I'll >>> need to write a test case application though >> >> I was pretty sure that MPlayer supports 12bit greyscale, but I cannot >> find where it was handled. You can of course pass it to the MPlayer >> internas as 8bit greyscale, which would be IMGFMT_Y8 or just pass >> it on as 16bit which would be IMGFMT_Y16_LE (LE = little endian). >> >> You can find the internal #defines of the image formats in >> libmpcodecs/img_format.h and can use https://www.fourcc.org/yuv.php >> to decode their meaning. >> >> The equivalent for libav would be libavutil/pixfmt.h >> >> Luca Barbato tells me that adding Y12 support to libav would be easy. >> >> Attila Kinali >> > > So easy that is [done][1], it still needs to be tested/reviewed/polished > though. Cool. Although needs to be processed since it is signed value, and because it it is really just 0C based readings with 0.25C steps.. But will look into that when I get a chance. Anyway did hack in basic support so v4l2grab so I could test the sensor, and seems to work well but needs some colorized processing to be useful of course. Soldering iron about 1 meter from sensor -> http://imgur.com/a/8totG > > [1]:https://github.com/lu-zero/libav/commits/gray12 > > lu -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
