Date: Tue, 3 Oct 2017 10:00:37 +0200 From: Hans Petter Selasky <hps@selasky.org> To: Curtis Villamizar <curtis@orleans.occnc.com>, freebsd-multimedia@freebsd.org Subject: Re: video using webcamd on Raspberry Pi 3 Message-ID: <23bc6bc5-d255-4e9b-ab46-aa712cfe6673@selasky.org> In-Reply-To: <d358e905-d44b-009c-4d1d-7f70e3943b7e@orleans.occnc.com> References: <20170930021251.CA4232606DD@mail.turbocat.net> <bb64b7c9-2bb7-4a33-5577-c31e09051d48@selasky.org> <70f306cd-cc6b-7eaf-7146-bbc6cf0f8567@orleans.occnc.com> <07d55c94-e4f3-61c0-1582-85dc74724c2e@selasky.org> <d358e905-d44b-009c-4d1d-7f70e3943b7e@orleans.occnc.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 09/30/17 22:49, Curtis Villamizar wrote: > On 09/30/17 14:11, Hans Petter Selasky wrote: >> lsusb -v > > The output is 740 lines long. Here are the bDescriptorSubtype lines: > > bDescriptorSubtype 1 (HEADER) > bDescriptorSubtype 3 (OUTPUT_TERMINAL) > bDescriptorSubtype 6 (EXTENSION_UNIT) > bDescriptorSubtype 2 (INPUT_TERMINAL) > bDescriptorSubtype 5 (PROCESSING_UNIT) > bDescriptorSubtype 1 (INPUT_HEADER) > bDescriptorSubtype 6 (FORMAT_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 7 (FRAME_MJPEG) > bDescriptorSubtype 3 (STILL_IMAGE_FRAME) > bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bDescriptorSubtype 3 (STILL_IMAGE_FRAME) > bDescriptorSubtype 13 (COLORFORMAT) > bDescriptorSubtype 1 (HEADER) > bDescriptorSubtype 2 (INPUT_TERMINAL) > bDescriptorSubtype 6 (FEATURE_UNIT) > bDescriptorSubtype 3 (OUTPUT_TERMINAL) > bDescriptorSubtype 1 (AS_GENERAL) > bDescriptorSubtype 2 (FORMAT_TYPE) > bDescriptorSubtype 1 (EP_GENERAL) > > The format is MJPEG or raw. > > For the resolution of 320x240 we have: > > VideoStreaming Interface Descriptor: > bLength 30 > bDescriptorType 36 > bDescriptorSubtype 7 (FRAME_MJPEG) > bFrameIndex 4 > bmCapabilities 0x00 > Still image unsupported > wWidth 320 > wHeight 240 > dwMinBitRate 37005360 > dwMaxBitRate 37005360 > dwMaxVideoFrameBufferSize 154189 > dwDefaultFrameInterval 333333 > bFrameIntervalType 1 > dwFrameInterval( 0) 333333 > > VideoStreaming Interface Descriptor: > bLength 30 > bDescriptorType 36 > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED) > bFrameIndex 4 > bmCapabilities 0x00 > Still image unsupported > wWidth 320 > wHeight 240 > dwMinBitRate 36864000 > dwMaxBitRate 36864000 > dwMaxVideoFrameBufferSize 153600 > dwDefaultFrameInterval 333333 > bFrameIntervalType 1 > dwFrameInterval( 0) 333333 > > This still doesn't work with 160x120 and 5 fps so probably not a CPU > issue, but I could be wrong. OTOH I just got a kernel panic while > running 160x120. It doesn't seem related based on where it was. I'm > running that again and no panic so far but also nothing on the screen > even after quite a few minutes. > Hi, Can you check dmesg if there are any errors? Can you further check "top" for CPU usage. --HPS
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?23bc6bc5-d255-4e9b-ab46-aa712cfe6673>