Portsdown Webcams - Revision history

G8GKQ: /* Logitech C930e */

2021-09-11T19:39:28Z

Logitech C930e

G8GKQ: /* Logitech C170 */

2021-08-25T09:09:31Z

Logitech C170

G8GKQ: /* Providing WebCam Support */

2021-08-25T09:03:32Z

Providing WebCam Support

G8GKQ: /* Streaming from WebCams */

2021-08-25T09:02:39Z

Streaming from WebCams

G8GKQ at 08:58, 25 August 2021

2021-08-25T08:58:58Z

G8GKQ: /* Introduction */

2021-08-25T08:45:01Z

Introduction

G8GKQ: /* Logitech C920 */

2021-08-25T08:44:48Z

Logitech C920

G8GKQ: /* Logitech C920 */

2021-08-25T08:44:31Z

Logitech C920

G8GKQ: /* Logitech C920 */

2021-08-25T08:42:29Z

Logitech C920

G8GKQ at 08:41, 25 August 2021

2021-08-25T08:41:50Z

@@ Line 27: / Line 27: @@
 ===Logitech C930e===
-The Logitech C930e is supported by the Portsdown 4 for transmission with the LimeSDR.  It also works with the Pluto for DVB-T transmission, but not for DVB-S or DVB-S2.
+The Logitech C930e is partially supported by the Portsdown 4 for transmission with the LimeSDR; some users have reported that the audio does not work.  It works in a simialr fashion with the Pluto for DVB-T transmission, but not at all for DVB-S or DVB-S2.
 ===Testing WebCams===

@@ Line 19: / Line 19: @@
 ===Logitech C170===
-The Logitech C170 is a cheaper standard definition, mone sound webcam and is supported by the Portsdown 4.
+The Logitech C170 is a cheaper, standard definition, mono sound webcam and is supported by the Portsdown 4.
 ===Logitech C525===

← Older revision		Revision as of 09:03, 25 August 2021
Line 41:		Line 41:
	===Providing WebCam Support===		===Providing WebCam Support===

−	It is very difficult to configure Portsdown to work with a particular webcam. Usually, physical testing and incremental development is required with the actual webcam. Hence good support will always be provided for the original C920 and the C170, as these are available to the Portsdown developer. Support for other webcams relies on loan of examples and then ~~amintenance~~ of capability cannot be ~~gauranteed~~ as changes to the software ~~are made~~.	+	It is very difficult to configure Portsdown to work with a particular webcam. Usually, physical testing and incremental development is required with the actual webcam. Hence good support will always be provided for the original C920 and the C170, as these are available to the Portsdown developer. Support for other webcams relies on loan of examples and then maintenance of capability cannot be guaranteed as changes to the software may have adverse effects that cannot be tested before release.

← Older revision		Revision as of 09:02, 25 August 2021
Line 38:		Line 38:

	The Portsdown 4 will stream vision and audio from a connected C920 (all versions) or a C170.		The Portsdown 4 will stream vision and audio from a connected C920 (all versions) or a C170.
		+
		+	===Providing WebCam Support===
		+
		+	It is very difficult to configure Portsdown to work with a particular webcam. Usually, physical testing and incremental development is required with the actual webcam. Hence good support will always be provided for the original C920 and the C170, as these are available to the Portsdown developer. Support for other webcams relies on loan of examples and then amintenance of capability cannot be gauranteed as changes to the software are made.

← Older revision		Revision as of 08:58, 25 August 2021
Line 16:		Line 16:
	* The latest version does not include a hardware H264 encoder and is only supported by the Portsdown 4. It responds to the lsusb command with:		* The latest version does not include a hardware H264 encoder and is only supported by the Portsdown 4. It responds to the lsusb command with:
	Bus 001 Device 00x: ID 046d:08e5 Logitech, Inc.		Bus 001 Device 00x: ID 046d:08e5 Logitech, Inc.
		+
		+	===Logitech C170===
		+
		+	The Logitech C170 is a cheaper standard definition, mone sound webcam and is supported by the Portsdown 4.
		+
		+	===Logitech C525===
		+
		+	The Logitech C525 is supported by the Portsdown 4 for transmission with the Pluto. '''HOWEVER''', after ceasing transmission the touchscreen is unresponsive for 5 seconds while the webcam drivers are reloaded.
		+
		+	===Logitech C930e===
		+
		+	The Logitech C930e is supported by the Portsdown 4 for transmission with the LimeSDR. It also works with the Pluto for DVB-T transmission, but not for DVB-S or DVB-S2.
		+
		+	===Testing WebCams===
		+
		+	The Info Screen (accessible from Menu 2) on the Portsdown 4 will report the variant of C920 that is connected to the Portsdown.
		+
		+	The C920 monitor (again from Menu 2) will show the image from many connected WebCams. However, the fact that an image is shown does not mean that Portsdown supports that WebCam. The Monitor display uses different drivers from the transmitting software.
		+
		+	===Streaming from WebCams===
		+
		+	The Portsdown 4 will stream vision and audio from a connected C920 (all versions) or a C170.

@@ Line 5: / Line 5: @@
 The recommended WebCam is the Logitech C920, but this has 3 versions with identical external hardware, but with different elctronics and drivers.  Only the oldest version is supported by the Portsdown 2020, but all 3 versions are supported by the Portsdown 4.
-===Logitech C920===[[File:Logitech C920.jpg|400px]]
+===Logitech C920===
 The Logitech C920 has 3 versions:

@@ Line 11: / Line 11: @@
 * The original version, marketed from first introduction until early 2019, included a hardware H264 encoder, and is supported for DATV transmissions by both the Portsdown 2020 and the Portsdown 4.  This version responds the the Linux lsusb command with
   Bus 001 Device 00x: ID 046d:082d Logitech, Inc. HD Pro Webcam C920
-* The second version used electronics manufactured by Orbicom and is only supported by the Portsdown 4.  It was marketed from 2019 through to the end of 2020.  It does not include a hardware H264 encoder, and responds to the lsusb command with:
+* The second version used electronics manufactured by Orbicam and is only supported by the Portsdown 4.  It was marketed from 2019 through to the end of 2020.  It does not include a hardware H264 encoder, and responds to the lsusb command with:
   Bus 001 Device 00x: ID 046d:0892 Logitech, Inc. OrbiCam
 * The latest version does not include a hardware H264 encoder and is only supported by the Portsdown 4.  It responds to the lsusb command with:
   Bus 001 Device 00x: ID 046d:08e5 Logitech, Inc.

← Older revision		Revision as of 08:41, 25 August 2021
Line 3:		Line 3:
	Webcams have proved difficult to support on the Portsdown as manufacturers spend a lot of effort in developing Windows drivers (for their major market), but very little effort in developing Linux drivers as it does not bring them much revenue.		Webcams have proved difficult to support on the Portsdown as manufacturers spend a lot of effort in developing Windows drivers (for their major market), but very little effort in developing Linux drivers as it does not bring them much revenue.

−	The recommended WebCam is the Logitech C920, but this has 3 versions with identical external hardware, but different elctronics and drivers. Only the oldest version is supported by the Portsdown 2020, but all 3 versions are supported by the Portsdown 4.	+	The recommended WebCam is the Logitech C920, but this has 3 versions with identical external hardware, but with different elctronics and drivers. Only the oldest version is supported by the Portsdown 2020, but all 3 versions are supported by the Portsdown 4.
		+
		+	===Logitech C920===
		+
		+	The Logitech C920 has 3 versions:
		+
		+	* The original version, marketed from first introduction until early 2019, included a hardware H264 encoder, and is supported for DATV transmissions by both the Portsdown 2020 and the Portsdown 4. This version responds the the Linux lsusb command with
		+	Bus 001 Device 00x: ID 046d:082d Logitech, Inc. HD Pro Webcam C920
		+	* The second version used electronics manufactured by Orbicom and is only supported by the Portsdown 4. It was marketed from 2019 through to the end of 2020. It does not include a hardware H264 encoder, and responds to the lsusb command with:
		+	Bus 001 Device 00x: ID 046d:0892 Logitech, Inc. OrbiCam
		+	* The latest version does not include a hardware H264 encoder and is only supported by the Portsdown 4. It responds to the lsusb command with:
		+	Bus 001 Device 00x: ID 046d:08e5 Logitech, Inc.