We have collected the most relevant information on Pulseaudio Stream Buffer Under Flow. Open the URLs, which are collected below, and you will find all the info you are interested in.
PulseAudio: Audio Streams - freedesktop.org
https://freedesktop.org/software/pulseaudio/doxygen/streams.html
In case of a buffer underrun the read index is equal or larger than the write index. Unless the prebuf value is 0, PulseAudio will temporarily pause playback in such a case, and wait until the buffer is filled up to prebuf bytes again. If prebuf is 0, the read index may be larger than the write index, in which case silence is played.
PulseAudio: stream.h File Reference - freedesktop.org
https://freedesktop.org/software/pulseaudio/doxygen/stream_8h.html
Return the per-stream server-side buffer metrics of the stream. Only valid after the stream has been connected successfully and if the server is at least PulseAudio 0.9. This will return the actual configured buffering metrics, which may differ from what was requested during pa_stream_connect_record() or pa_stream_connect_playback(). This call will always return the …
PulseAudio under the hood - Victor Gaydov
https://gavv.github.io/articles/pulseaudio-under-the-hood/
If adjust latency mode is disabled, tlength specifies target size of the stream buffer. PulseAudio server requests or sends samples to the client in such way that there is always about tlength bytes in the stream buffer. If adjust latency mode is enabled, tlength specifies desired size of the stream buffer plus the device buffer. Device buffer size is controlled by the source or sink …
PulseAudio: pa_buffer_attr Struct Reference
https://freedesktop.org/software/pulseaudio/doxygen/structpa__buffer__attr.html
Should underrun occur, the read index of the output buffer overtakes the write index, and hence the fill level of the buffer is negative. Start of playback can be forced using pa_stream_trigger() even though the prebuffer size hasn't been reached. If a buffer underrun occurs, this prebuffering will be again enabled.
PROTOCOL - pulseaudio/pulseaudio - PulseAudio Sound Server ...
https://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/PROTOCOL?id=a7667b990ecf475bb9ad3faaf334cd650da36a9d
Pulseaudio fdsem (wrappers around event file descriptors) are used for signalling new data. The protocol has a new SHM flag telling whether a SHM memblock is writable by both sides. PA_COMMAND_ENABLE_SRBCHANNEL First sent from server to client, tells the client to start listening on the additional SHM ringbuffer channel.
PROTOCOL - pulseaudio/pulseaudio - PulseAudio Sound Server ...
https://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/PROTOCOL?h=v15.0
### v9, implemented by >= 0.9.0 Reply for PA_COMMAND_CREATE_PLAYBACK_STREAM, PA_COMMAND_CREATE_RECORD_STREAM now returns buffer_attrs that are used: Four new fields in reply of PA_COMMAND_CREATE_PLAYBACK_STREAM: maxlength tlength prebuf minreq Two new …
Async Playback – Developer Documentation – PulseAudio
https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/Developer/Clients/Samples/AsyncPlayback/
This code is not made by any PulseAudio developer. It may not be best practice, but it seems to work and could be used as a start for a playback application that uses the async API. This simple application plays a constant note and uses a low latency setup (20 ms) that should be suitable for games.
PulseAudio example with callbacks · GitHub
https://gist.github.com/toroidal-code/8798775
PulseAudio example with callbacks. GitHub Gist: instantly share code, notes, and snippets.
c - How can the PulseAudio asynchronous library be used …
https://stackoverflow.com/questions/29977651/how-can-the-pulseaudio-asynchronous-library-be-used-to-play-raw-pcm-data
1 Answer1. Active Oldest Votes. This answer is useful. 12. This answer is not useful. Show activity on this post. Like so. /* pcm-playback: pcm-playback.c gcc -o pcm-playback pcm-playback.c `pkg-config --cflags --libs libpulse` */ #include <stdio.h> #include <assert.h> #include <pulse/pulseaudio.h> #define FORMAT PA_SAMPLE_U8 #define RATE 44100 ...
Now you know Pulseaudio Stream Buffer Under Flow
Now that you know Pulseaudio Stream Buffer Under Flow, we suggest that you familiarize yourself with information on similar questions.
