On Thu, 11 Jun 2009, Karicheri, Muralidharan wrote: > >On Wed, 10 Jun 2009, Karicheri, Muralidharan wrote: > > > >> So how do I know what frame-rate I get? Sensor output frame rate depends > >> on the resolution of the frame, blanking, exposure time etc. > > > >This is not supported. > > > I am still not clear. You had said in an earlier email that it can > support streaming. That means application can stream frames from the > capture device. > I know you don't have support for setting a specific frame rate, but it > must be outputting frame at some rate right? I am sorry, I do not know how I can explain myself clearer. Yes, you can stream video with mt9t031. No, you neither get the framerate measured by the driver nor can you set a specific framerate. Frames are produced as fast as it goes, depending on clock settings, frame size, black areas, autoexposure. Thanks Guennadi > > Here is my usecase. > > open capture device, > set resolutions (say VGA) for capture (S_FMT ???) > request buffer for streaming & mmap & QUERYBUF > start streaming (STREAMON) > DQBUF/QBUF in a loop -> get VGA buffers at some fps. > STREAMOFF > close device > > Is this possible with mt9t031 available currently in the tree? This requires sensor device output frames continuously on the bus using PCLK/HSYNC/VSYNC timing to the bridge device connected to the bus. Can you give a use case like above that you are using. I just want to estimate how much effort is required to add this support in the mt9t031 driver. > > Thanks > > Murali > > >Thanks > >Guennadi > >--- > >Guennadi Liakhovetski, Ph.D. > >Freelance Open-Source Software Developer > >http://www.open-technology.de/ > --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- 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
