[asterisk-bugs] [Asterisk 0017934]: [patch] downsampling slinear16 to slinear (or ulaw or alaw or g729) results in truncation

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=17934 
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Reported By:                palbrecht
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17934
Category:                   Codecs/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           1.6.2.11 
JIRA:                       SWP-2136 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-08-31 13:33 CDT
Last Modified:              2010-08-31 17:43 CDT
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Summary:                    [patch] downsampling slinear16 to slinear (or ulaw
or alaw or g729) results in truncation
Description: 
When I translate from AST_FORMAT_SLINEAR16 to AST_FORMAT_SLINEAR the output
frame is truncated, specifically, instead of 160 samples I get 137 samples.
The result is the same for ulaw and alaw. For g729, the output is truncated
to 80 samples.
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 (0126513) qwell (administrator) - 2010-08-31 17:43
 https://issues.asterisk.org/view.php?id=17934#c126513 
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so, I reversed that test, just because, and it's also wrong (it upconverted
via g722 first, so I had to remove that).  Perhaps not very useful, but...

slin16>slin is off by 23 samples (160 - 137)
slin>slin16 is off by 56 samples (320 - 264)

obvious note: 56 is not 23 * 2 

Issue History 
Date Modified    Username       Field                    Change               
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2010-08-31 17:43 qwell          Note Added: 0126513                          
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