Re: [PATCH v5 00/39] i.MX Media Driver
From: Philipp Zabel <hidden>
Date: 2017-03-20 13:16:25
Also in:
linux-arm-kernel, linux-media, lkml
On Sat, 2017-03-18 at 12:58 -0700, Steve Longerbeam wrote:
On 03/18/2017 12:22 PM, Russell King - ARM Linux wrote:quoted
Hi Steve, I've just been trying to get gstreamer to capture and h264 encode video from my camera at various frame rates, and what I've discovered does not look good. 1) when setting frame rates, media-ctl _always_ calls VIDIOC_SUBDEV_S_FRAME_INTERVAL with pad=0.
To allow setting pad > 0: https://patchwork.linuxtv.org/patch/39348/
quoted
2) media-ctl never retrieves the frame interval information, so there's no way to read it back with standard tools, and no indication that this is going on...I think Philipp Zabel submitted a patch which addresses these in media-ctl. Check with him.
To read back and propagate the frame interval: https://patchwork.linuxtv.org/patch/39349/ https://patchwork.linuxtv.org/patch/39351/ regards Philipp -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html