This post is to give the people from Telestream and IPEVO some extra information about the problem I have using our excellent IPEVO P2V camera with Telestream’s fantastic Screenflow software. Hopefully you can help me sort this problem out.
I use Screenflow and my IPEVO camera as a mobile guerrilla usability testing lab which I can carry around in my backpack. I’ve used it for almost 3 years – I’ve used it for my dissertation, for commercial usability testing, and most recently for my current project with the UK Passport Office.
With so many of us trying to demo our smartphones, iPads, or other devices to an audience of educators, the IPEVO Point 2 View ($69) is something to consider for your toolbox! It easily connects to a computer to project to a large group using an LCD projector for real-time viewing of the screens of the electronic devices we are trying to show. Item 7 IPEVO POINT 2 VIEW USB WEB / DOCUMENT CAMERA with BOX, STAND & SOFTWARE 7 -IPEVO POINT 2 VIEW USB WEB / DOCUMENT CAMERA with BOX, STAND & SOFTWARE. +$13.55 shipping. IPEVO DO-CAM USB Document Camera V4K PRO Ultra High Definition USB Document Camera IPEVO Uplift Multi-angle Arm for Smartphones IPEVO Mirror-Cam VZ-X Wireless, HDMI & USB 8MP Document Camera VZ-R HDMI/USB Dual Mode 8MP Document Camera. Screenflow with IPevo Point 2 View camera Posted by bernard 22 April 2014 27 April 2014 This post is to give the people from Telestream and IPEVO some extra information about the problem I have using our excellent IPEVO P2V camera with Telestream’s fantastic Screenflow software.
The problem
Making a Screenflow recording with 1) the screen of my computer, 2) the video feed from the IPEVO camera does not work, and 3) the audio recorded from my computer.
Update
The nice people in IPEVO and Telestream have been in touch and suggested some tests – rebooting, changing USB ports, making sure no other software application is using the camera. All of these were unsuccessful, at which point I had a look in the system log.
This is my test procedure:
- Plug in the P2V camera
- Start Screenflow
- The P2V camera feed is shown on the “monitor” screen
- Start Screenflow recording
- Record for 5-6 seconds
- Stop and play back
Observed symptoms
As mentioned below there is an ~ 9 second delay between me clicking the record button and the 2 second countdown beginning. Then following is then written in my /var/log/system.log:
Apr 23 09:19:56 screenflowrecorder[734]: Camera resize: 800,600
Apr 23 09:19:58 screenflowrecorder[734]: Camera resize: 1280,720
Apr 23 09:20:02 screenflowrecorder[734]: Camera resize: 960,720
Apr 23 09:20:05 screenflowrecorder[734]: Camera resize: 720,480
Apr 23 09:20:09 screenflowrecorder[734]: Camera resize: 640,480
Apr 23 09:20:12 screenflowrecorder[734]: Cannot set camera resolution.
Apr 23 09:20:29 ScreenFlow[701]: CoreText performance note: Client called CTFontCreateWithName() using name 'Eurostile' and got font with PostScript name 'EurostileRegular'. For best performance, only use PostScript names when calling this API.
Repeating the test once more shows the same:
Apr 23 09:22:35 --- last message repeated 1 time ---
Apr 23 09:22:35 USB Prober[322]: USB Prober: USBDeviceOpen() failed 0xe00002c5
Apr 23 09:23:05 --- last message repeated 3 times ---
Apr 23 09:23:07 screenflowrecorder[744]: Camera resize: 800,600
Apr 23 09:23:09 screenflowrecorder[744]: Camera resize: 1280,720
Apr 23 09:23:13 screenflowrecorder[744]: Camera resize: 960,720
Apr 23 09:23:16 screenflowrecorder[744]: Camera resize: 720,480
Apr 23 09:23:20 screenflowrecorder[744]: Camera resize: 640,480
Apr 23 09:23:23 screenflowrecorder[744]: Cannot set camera resolution.
Apr 23 09:23:41 ScreenFlow[701]: CoreText performance note: Client called CTFontCreateWithName() using name 'Eurostile' and got font with PostScript name 'EurostileRegular'. For best performance, only use PostScript names when calling this API.
Apr 23 09:23:43 ScreenFlow[701]: -writeToURL file://localhost/private/var/folders/19/9lf5c2c13nl1qf608zp62jpr0000gn/T/TemporaryItems/(A%20Document%20Being%20Saved%20By%20ScreenFlow)/Unsaved%20ScreenFlow%20Document%203.screenflow
Apr 23 09:23:45 mdworker[746]: Cannot find function pointer MetadataImporterPluginFactory for factory 2CBD2771-5EE8-4623-9C95-7A275A28C255 in CFBundle/CFPlugIn 0x7fb710d13270 (bundle, loaded)
Apr 23 09:23:45 mdworker[746]: (Error) Import: Could not create instance for plugIn 'file:///Applications/ScreenFlow.app/Contents/Library/Spotlight/ScreenFlow.mdimporter/'
Apr 23 09:23:45 mdworker[746]: (Error) Import: BAD IMPORTER ~~~~~~~~~~~~~~~~~~ file:///Applications/ScreenFlow.app/Contents/Library/Spotlight/ScreenFlow.mdimporter/
And once more:
Apr 23 09:24:19 screenflowrecorder[748]: Camera resize: 800,600
Apr 23 09:24:21 screenflowrecorder[748]: Camera resize: 1280,720
Apr 23 09:24:25 screenflowrecorder[748]: Camera resize: 960,720
Apr 23 09:24:28 screenflowrecorder[748]: Camera resize: 720,480
Apr 23 09:24:32 screenflowrecorder[748]: Camera resize: 640,480
Apr 23 09:24:35 screenflowrecorder[748]: Cannot set camera resolution.
Apr 23 09:24:52 ScreenFlow[701]: CoreText performance note: Client called CTFontCreateWithName() using name 'Eurostile' and got font with PostScript name 'EurostileRegular'. For best performance, only use PostScript names when calling this API.
Apr 23 09:24:54 ScreenFlow[701]: -writeToURL file://localhost/private/var/folders/19/9lf5c2c13nl1qf608zp62jpr0000gn/T/TemporaryItems/(A%20Document%20Being%20Saved%20By%20ScreenFlow)/Unsaved%20ScreenFlow%20Document%204.screenflow
Apr 23 09:24:55 mdworker[754]: Cannot find function pointer MetadataImporterPluginFactory for factory 2CBD2771-5EE8-4623-9C95-7A275A28C255 in CFBundle/CFPlugIn 0x7fb098f21440 (bundle, loaded)
Apr 23 09:24:55 mdworker[754]: (Error) Import: Could not create instance for plugIn 'file:///Applications/ScreenFlow.app/Contents/Library/Spotlight/ScreenFlow.mdimporter/'
Apr 23 09:24:55 mdworker[754]: (Error) Import: BAD IMPORTER ~~~~~~~~~~~~~~~~~~ file:///Applications/ScreenFlow.app/Contents/Library/Spotlight/ScreenFlow.mdimporter/
(Original post continued)
Has anyone else had this problem? If so, did you resolve it? How?
I’d appreciate any help from the people in IPEVO or Screenflow. Please get in touch with me!
The symptons
The Screenflow recording is successfully made, with 1) the screen of my computer, and 3) the audio from the computer but not with the video feed from the IPEVO camera.
How to reproduce the problem
- Open Screenflow
- Select “new recording”
- Screenflow source pop-up appears
- Confirm “record desktop from your colour LCD screen”
- Select “Record video from” checkbox and choose “IPEVO Point 2 View” camera from dropdown
- Select “Record Audio from” checkbox and choose “Built-In Input” from dropdown
- Click the big RED button to start the recording
I have Screenflow setup with a 2 second countdown: after clicking the red record button, Screenflow is supposed to immediately countdown 2, 1, and then begin the recording.
In the case of using the IPEVO camera, Screenflow waits for approx. 9 seconds, before it begins the 2 second countdown. I believe this is not expected behaviour and maybe be connected.
After this 9 second delay, Screenflow then begins the 2 second countdown as expected.
When the recording has been stopped, Screenflow then presents the recorded video. As can be seen in this test video, the IPEVO camera feed is not present.
When the captures video using Screenflow is played back, the IPEVO camera feed is missing.
This is the issue.
Need to discover
Telestream states Screenflow does not support “cameras using the HDV codec are not supported”
Ipevo Point 2 View Software Download
I need to find out what codec does the IPEVO camera use?
Ipevo Point 2 View Software Download
Any help appreciated!
Technical information about the set-up
some information about the machine I am using with Screenflow and the IPEVO camera.
Computer hardware info
MacBook Pro 13-inch, Early 2011
OS: OS X 10.9.2 (13C64)
Memory: 16 GB 1333 MHz DDR3
Graphics: Intel HD Graphics 3000 512 MB
Processor 2.7 GHz Intel Core i7
IPEVO camera
The computer identifies the IPEVO camera as:
IPEVO Point 2 View:
Product ID: 0x0204
Vendor ID: 0x1778
Version: 10.12
Speed: Up to 480 Mb/sec
Manufacturer: IPEVO corp
Location ID: 0xfd120000 / 4
Current Available (mA): 500
Current Required (mA): 300
Screenflow information
Screenflow version: Version 4.5 (20888)