- Committer: Takashi Iwai
- Date: 2018-03-16 14:27:00 UTC
- Revision ID: git-v1:a08336cd889512dd3f1060c68724ab81f15fb21c
jack: Report Xruns to user application
Only increasing the hw_ptr is not sufficient
because it will not be evaluated by the ALSA library
to detect an Xrun.
In addition there is a raise where an Xrun detected by the JACK thread
could not be detected in the ALSA thread.
- In playback use case
- The hw_ptr will be increased by the JACK thread
(hw_ptr > appl_ptr => Xrun)
- But the ALSA thread increases the appl_ptr before evaluating the
hw_ptr
- Therefore the hw_ptr < appl_ptr again
- ALSA will not detect the Xrun which was already detected by the
JACK thread
Therefore an additional variable is required to report an Xrun from the
JACK thread to ALSA.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Only increasing the hw_ptr is not sufficient
because it will not be evaluated by the ALSA library
to detect an Xrun.
In addition there is a raise where an Xrun detected by the JACK thread
could not be detected in the ALSA thread.
- In playback use case
- The hw_ptr will be increased by the JACK thread
(hw_ptr > appl_ptr => Xrun)
- But the ALSA thread increases the appl_ptr before evaluating the
hw_ptr
- Therefore the hw_ptr < appl_ptr again
- ALSA will not detect the Xrun which was already detected by the
JACK thread
Therefore an additional variable is required to report an Xrun from the
JACK thread to ALSA.
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| Filename | Latest Rev | Last Changed | Committer | Comment | Size | ||
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a52
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38 | 18 years ago | Takashi Iwai | Add a52 output plugin Added (experimental) a52 ou |
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arcam-av
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194 | 15 years ago | Takashi Iwai | Add arcam-av plugin Added arcam-av control plugin |
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doc
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20 | 18 years ago | Takashi Iwai | Structure reorganziation, added polyp plugin - Re |
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jack
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20 | 18 years ago | Takashi Iwai | Structure reorganziation, added polyp plugin - Re |
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m4
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181 | 15 years ago | Diego E. 'Flameeyes' Pettenò | Add the attributes.m4 macro file from xine/lscube. |
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maemo
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68 | 17 years ago | Takashi Iwai | Alsa support for Maemo SDK (n770): Header files T |
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mix
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31 | 18 years ago | Takashi Iwai | Add upmix and vdownmix plugins Added PCM upmix an |
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oss
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20 | 18 years ago | Takashi Iwai | Structure reorganziation, added polyp plugin - Re |
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pph
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88 | 17 years ago | Takashi Iwai | Add rate resampler plugin based on speex Added an |
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pulse
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57 | 17 years ago | Takashi Iwai | Follow Polypaudio/PulseAudio name change Polypaud |
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rate
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35 | 18 years ago | Takashi Iwai | Add samplerate rate converter plugin Added a rate |
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rate-lavc
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86 | 17 years ago | Takashi Iwai | Add livavcodec resampler plugin Add a new pcm_rat |
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speex
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192 | 15 years ago | Takashi Iwai | Add Speex pre-processing plugin Added Speex pre-p |
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usb_stream
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141 | 15 years ago | Takashi Iwai | Add usb_stream PCM plugin usb_stream PCM plugin i |
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.gitignore |
181 | 15 years ago | Diego E. 'Flameeyes' Pettenò | Add the attributes.m4 macro file from xine/lscube. | 373 bytes |
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acinclude.m4 |
6 | 19 years ago | Jaroslav Kysela | packaging related changes | 172 bytes |
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configure.ac |
284 | 6 years ago | Jaroslav Kysela | Release v1.1.5 Signed-off-by: Jaroslav Kysela <pe | 7.8 KB |
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COPYING |
285 | 6 years ago | Jaroslav Kysela | Change FSF address (Franklin Street) Signed-off-b | 25.8 KB |
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COPYING.GPL |
285 | 6 years ago | Jaroslav Kysela | Change FSF address (Franklin Street) Signed-off-b | 17.5 KB |
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cvscompile |
35 | 18 years ago | Takashi Iwai | Add samplerate rate converter plugin Added a rate | 370 bytes |
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gitcompile |
126 | 15 years ago | Jaroslav Kysela | removed .hg* files and renamed hgcompile to gitcom | 370 bytes |
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Makefile.am |
195 | 15 years ago | Takashi Iwai | Clean up Makefile.am Avoid unnecessary substituti | 692 bytes |
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