Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2015-03-29 Thread Milos Ivanovic
On 8/12/2014 10:23 am, Grazvydas Ignotas wrote: Hi, On Sun, Dec 7, 2014 at 9:23 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: Hi Grazvydas, (CC'ing Paulo Assis) On Saturday 06 December 2014 02:25:25 Grazvydas Ignotas wrote: On Fri, Dec 5, 2014 at 1:46 PM, Laurent Pinchart

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-12-07 Thread Laurent Pinchart
Hi Grazvydas, (CC'ing Paulo Assis) On Saturday 06 December 2014 02:25:25 Grazvydas Ignotas wrote: On Fri, Dec 5, 2014 at 1:46 PM, Laurent Pinchart wrote: On Thursday 06 November 2014 00:29:53 Grazvydas Ignotas wrote: On Wed, Nov 5, 2014 at 4:05 PM, Laurent Pinchart wrote: Would you be

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-12-07 Thread Grazvydas Ignotas
Hi, On Sun, Dec 7, 2014 at 9:23 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: Hi Grazvydas, (CC'ing Paulo Assis) On Saturday 06 December 2014 02:25:25 Grazvydas Ignotas wrote: On Fri, Dec 5, 2014 at 1:46 PM, Laurent Pinchart wrote: On Thursday 06 November 2014 00:29:53

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-12-05 Thread Laurent Pinchart
Hi Grazvydas, On Thursday 06 November 2014 00:29:53 Grazvydas Ignotas wrote: On Wed, Nov 5, 2014 at 4:05 PM, Laurent Pinchart wrote: On Tuesday 04 November 2014 22:41:44 Rémi Denis-Courmont wrote: Le mardi 04 novembre 2014, 15:42:37 Rémi Denis-Courmont a écrit : Le 2014-11-04 14:58,

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-12-05 Thread Laurent Pinchart
Hi Sakari, On Wednesday 05 November 2014 18:11:47 Sakari Ailus wrote: On Wed, Nov 05, 2014 at 10:13:45AM +, Paulo Assis wrote: 2014-11-04 23:32 GMT+00:00 Sakari Ailus sakari.ai...@iki.fi: Sakari Ailus wrote: yavta does, for example, print both the monotonic timestamp from the buffer

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-12-05 Thread Grazvydas Ignotas
Hi, On Fri, Dec 5, 2014 at 1:46 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: Hi Grazvydas, On Thursday 06 November 2014 00:29:53 Grazvydas Ignotas wrote: On Wed, Nov 5, 2014 at 4:05 PM, Laurent Pinchart wrote: Would you be able to capture images from the C920 using yavta,

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-18 Thread Hans Verkuil
On 11/17/14 16:36, Grazvydas Ignotas wrote: On Thu, Nov 6, 2014 at 12:29 AM, Grazvydas Ignotas nota...@gmail.com wrote: On Wed, Nov 5, 2014 at 4:05 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: Hi Rémi, On Tuesday 04 November 2014 22:41:44 Rémi Denis-Courmont wrote: Le mardi

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-17 Thread Grazvydas Ignotas
On Thu, Nov 6, 2014 at 12:29 AM, Grazvydas Ignotas nota...@gmail.com wrote: On Wed, Nov 5, 2014 at 4:05 PM, Laurent Pinchart laurent.pinch...@ideasonboard.com wrote: Hi Rémi, On Tuesday 04 November 2014 22:41:44 Rémi Denis-Courmont wrote: Le mardi 04 novembre 2014, 15:42:37 Rémi

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-05 Thread Paulo Assis
Hi, 2014-11-04 23:32 GMT+00:00 Sakari Ailus sakari.ai...@iki.fi: Sakari Ailus wrote: yavta does, for example, print both the monotonic timestamp from the buffer and the time when the buffer has been dequeued: URL:http://git.ideasonboard.org/yavta.git $ yavta -c /dev/video0 should

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-05 Thread Sakari Ailus
Hi Paolo, On Wed, Nov 05, 2014 at 10:13:45AM +, Paulo Assis wrote: Hi, 2014-11-04 23:32 GMT+00:00 Sakari Ailus sakari.ai...@iki.fi: Sakari Ailus wrote: yavta does, for example, print both the monotonic timestamp from the buffer and the time when the buffer has been dequeued:

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-05 Thread Laurent Pinchart
Hi Paulo, On Wednesday 05 November 2014 10:13:45 Paulo Assis wrote: 2014-11-04 23:32 GMT+00:00 Sakari Ailus sakari.ai...@iki.fi: Sakari Ailus wrote: yavta does, for example, print both the monotonic timestamp from the buffer and the time when the buffer has been dequeued:

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-05 Thread Laurent Pinchart
Hi Rémi, On Tuesday 04 November 2014 22:41:44 Rémi Denis-Courmont wrote: Le mardi 04 novembre 2014, 15:42:37 Rémi Denis-Courmont a écrit : Le 2014-11-04 14:58, Sakari Ailus a écrit : Have you tried with a different application to see if the problem persists? Tried mplayer and

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-05 Thread Paulo Assis
Laurent, see below yavta output and matching syslog ./yavta -c -s 800x600 -t 1/30 -f mjpeg /dev/video0 Device /dev/video0 opened. Device `Logitech Webcam C930e' on `usb-:00:1a.7-1' is a video output (without mplanes) device. Video format set: MJPEG (47504a4d) 800x600 (stride 0) field none

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-04 Thread Sakari Ailus
Hi Grazvydas, On Tue, Nov 04, 2014 at 01:16:03AM +0200, Grazvydas Ignotas wrote: Hi, On Mon, Nov 3, 2014 at 12:57 AM, Sakari Ailus sakari.ai...@iki.fi wrote: Hi Grazvydas, On Sun, Nov 02, 2014 at 04:03:55AM +0200, Grazvydas Ignotas wrote: There is periodic stutter (seen in vlc, for

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-04 Thread Rémi Denis-Courmont
Le 2014-11-04 14:58, Sakari Ailus a écrit : Have you tried with a different application to see if the problem persists? Tried mplayer and cheese now, and it seems they are not affected, so it's an issue with vlc. I wonder why it doesn't like newer flags.. Ohwell, sorry for the noise. I

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-04 Thread Paulo Assis
I've add to change guvcview so that it now generates it's own monotonic timestamps, kernel timestamps (uvcvideo at least), caused a similar problem, e.g: I would get a couple of frames with correct timestamps, then I would get at least one with a value lower than the rest, this caused playback to

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-04 Thread Sakari Ailus
Hi, On Tue, Nov 04, 2014 at 03:02:58PM +, Paulo Assis wrote: I've add to change guvcview so that it now generates it's own monotonic timestamps, kernel timestamps (uvcvideo at least), caused a similar problem, e.g: I would get a couple of frames with correct timestamps, then I would get

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-04 Thread Rémi Denis-Courmont
Le mardi 04 novembre 2014, 15:42:37 Rémi Denis-Courmont a écrit : Le 2014-11-04 14:58, Sakari Ailus a écrit : Have you tried with a different application to see if the problem persists? Tried mplayer and cheese now, and it seems they are not affected, so it's an issue with vlc. I

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-04 Thread Sakari Ailus
Sakari Ailus wrote: yavta does, for example, print both the monotonic timestamp from the buffer and the time when the buffer has been dequeued: URL:http://git.ideasonboard.org/yavta.git $ yavta -c /dev/video0 should do it. The first timestamp is the buffer timestamp, and the

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-03 Thread Grazvydas Ignotas
Hi, On Mon, Nov 3, 2014 at 12:57 AM, Sakari Ailus sakari.ai...@iki.fi wrote: Hi Grazvydas, On Sun, Nov 02, 2014 at 04:03:55AM +0200, Grazvydas Ignotas wrote: There is periodic stutter (seen in vlc, for example) since 3.9 where the stream stops for around half a second every 3-5 seconds or

Re: (bisected) Logitech C920 (uvcvideo) stutters since 3.9

2014-11-02 Thread Sakari Ailus
Hi Grazvydas, On Sun, Nov 02, 2014 at 04:03:55AM +0200, Grazvydas Ignotas wrote: There is periodic stutter (seen in vlc, for example) since 3.9 where the stream stops for around half a second every 3-5 seconds or so. Bisecting points to 1b18e7a0be859911b22138ce27258687efc528b8 v4l: Tell user