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Bug 142903 - [PATCH] fdsrc element never resets buffer offset to zero
[PATCH] fdsrc element never resets buffer offset to zero
Status: RESOLVED FIXED
Product: GStreamer
Classification: Platform
Component: gstreamer (core)
0.8.1
Other Linux
: Normal normal
: 0.8.4
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2004-05-21 14:25 UTC by David Moore
Modified: 2004-12-22 21:47 UTC
See Also:
GNOME target: ---
GNOME version: 2.3/2.4

Attachments
Patch to fix issue (1.52 KB, patch)
2004-05-21 14:28 UTC, David Moore 		none Details | Review

Description David Moore 2004-05-21 14:25:24 UTC 
The fdsrc element will always increment its buffer offset after being created,
and will never reset this offset to zero.  This poses a problem, for example,
with spider, which requires the offset to be zero for type detection to occur.

This pipeline:

fdsrc ! spider ! osssink

Will work the first time it is used -- but if spider is removed and replaced
with a new spider for detecting a new audio file, the type detection will fail.
Comment 1 David Moore 2004-05-21 14:28:02 UTC 
Created attachment 27906 [details] [review]
Patch to fix issue

This patch resets the buffer offset to zero during the READY_TO_PAUSED
transition.  I chose this behavior because it roughly duplicates the
functionality of the filesrc element, which opens a the file during the
READY_TO_PAUSED transition.  This seemed like the best solution to me, although
another option would be to reset the offset whenever the filedescriptor of the
fdsrc is set.
Comment 2 Benjamin Otte (Company) 2004-06-06 21:11:53 UTC 
applied