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Feature #2045

closed

streamdev-client filter socketpair() buffer overflow and resulting streaming unreliability

Added by te36 over 9 years ago. Updated over 9 years ago.

Status:
Closed
Priority:
Normal
Assignee:
schmirl
Category:
Client
Target version:
0.6.1
Start date:
12/30/2014
Due date:
% Done:

100%

Estimated time:

Description

With "Filter Streaming" enabled in streamdev-client, client-VDRs can become unreliably streaming programs, such as described in the following and other threads.

The appended patch is a suggested solution to the problem and includes a description of the analysis.

http://www.vdr-portal.de/board16-video-disk-recorder/board55-vdr-plugins/125237-streamdev-client-filter-daten-streamen-ndr-raspberry-haengt/

http://www.vdr-portal.de/board16-video-disk-recorder/board5-vdr-konfiguration/121751-vdr-streaming-client-und-kan%C3%A4le-mit-regionalfenstern/

http://www.vdr-portal.de/board16-video-disk-recorder/board55-vdr-plugins/103786-streamdev-server-client-verbindung-times-out/

Files

Download all files
vdr-plugin-streamdev-filter-patch.diff (19.5 KB) vdr-plugin-streamdev-filter-patch.diff vdr-plugin-streamdev-filter-patch.diff te36, 12/30/2014 11:53 PM
vdr-plugin-streamdev-filter-patch2.diff (2.48 KB) vdr-plugin-streamdev-filter-patch2.diff te36, 01/08/2015 05:32 PM
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 #1

Updated by te36 over 9 years ago

Second patch, additional to the first one. This improves the behavior of TimedWrite and reduces errors and stream breakage. See more details in the patch itself.

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 #2

Updated by te36 over 9 years ago

Unrelated problem:

size 4096 for m_Buffer seems to be too small is too small for some programs. The following is output when watching Anixe HD. Doubling the size to 8192 did solve this problem.

Jan 9 14:13:29 ras-pi2 vdr: [7627] cStreamdevFilter::Reset skipping 4026 bytes
Jan 9 14:13:39 ras-pi2 vdr: [7627] ERROR: Streamdev: Section handler buffer overflow (70 bytes lost)
Jan 9 14:13:39 ras-pi2 vdr: [7627] cStreamdevFilter::Reset skipping 4026 bytes
Jan 9 14:13:49 ras-pi2 vdr: [7627] ERROR: Streamdev: Section handler buffer overflow (70 bytes lost)
Jan 9 14:13:49 ras-pi2 vdr: [7627] cStreamdevFilter::Reset skipping 4026 bytes
Jan 9 14:13:59 ras-pi2 vdr: [7627] ERROR: Streamdev: Section handler buffer overflow (70 bytes lost)
Jan 9 14:13:59 ras-pi2 vdr: [7627] cStreamdevFilter::Reset skipping 4026 bytes
Jan 9 14:14:09 ras-pi2 vdr: [7627] ERROR: Streamdev: Section handler buffer overflow (70 bytes lost)
Jan 9 14:14:09 ras-pi2 vdr: [7627] cStreamdevFilter::Reset skipping 4026 bytes

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 #3

Updated by schmirl over 9 years ago

  • Status changed from New to Closed
  • % Done changed from 90 to 100
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