diff options
author | Matthew Jordan <mjordan@digium.com> | 2014-06-26 12:43:05 +0000 |
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committer | Matthew Jordan <mjordan@digium.com> | 2014-06-26 12:43:05 +0000 |
commit | 22e62ac6f640f6442968e5ab9146d3a7fe496f95 (patch) | |
tree | c0a567f7ef54b3a2129401f997f2d06b346602de /main/channel.c | |
parent | f27074eeb7319e5c12771fe76d81951c730ded46 (diff) |
app_jack: Support audio with a sampling rate higher than 8kHz
This patch enables the jack-audiohook to cope with dynamic sampling rates from
and to Asterisk. Information from the channel is taken to derive the channel's
sampling rate, suiting SLINxx format and frame->datalen.
There are stil a few limitations after this patch:
* Required information is taken from the channel during initialization as
the audiohook does not provide this information.
Audiohook.internal_sampl_rate(...) is set later, but no callback is available
to inform app_jack.
* Frame.datalen is computed using "rate / 50" assuming a ptime of 20ms.
There is no internal API available to determine datalen for a SLINxx.
* Ringbuffer size is now dynamic depending on the value of frame.datalen
(see above) and the number of frames, which are in RINGBUFFER_FRAME_CAPACITY,
that need to fit.
Review: https://reviewboard.asterisk.org/r/3618
Note that the patch being committed here is based on the patch posted on
ASTERISK-23836. However, Matthis Schmieder also provided a patch to enable
this functionality, and that patch is noted below.
ASTERISK-20696 #close
Reported by: Matthis Schmieder
patches:
app_jack.patch uploaded by Matthis Schmieder (License 6445)
ASTERISK-23836 #close
Reported by: Dennis Guse
patches:
patch-app_jack.c uploaded by Dennis Guse (License 6513)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@417360 65c4cc65-6c06-0410-ace0-fbb531ad65f3
Diffstat (limited to 'main/channel.c')
0 files changed, 0 insertions, 0 deletions