https://bugs.freedesktop.org/show_bug.cgi?id=88503
Bug ID: 88503
Summary: ALSA application gets no timestamp information when
using pulse plugin
Product: PulseAudio
Version: unspecified
Hardware: Other
OS: All
Status: NEW
Severity: normal
Priority: medium
Component: alsa
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected]
In normal ALSA operation, you can enable timestamps on an audio stream using
the SND_PCM_TSTAMP_ENABLE flag to alsa_snd_pcm_sw_params_set_tstamp_mode().
Subsequently, calling alsa_snd_pcm_status_get_tstamp() (or the higher precision
get_htstamp) gives timing information.
On my machine this works fine with vanilla ALSA, but once I install an asoundrc
which specifies "type pulse" for pcm.!default and ctl.!default timing
information is no longer available (get_tstamp and get_htstamp always return
zero).
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