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The Advanced Linux Sound Architecture (ALSA) - utilities
58c83ae239
In current aplay, several files can be handled as source of data frames for playback, or destination of captured data frames by an option '--separate-channels' (-I). On the other hand, in ALSA PCM kernel/user interface, several types of buffer are used to communicate between application/hardware; - mapped page frame for data frames with interleaved alignment - mapped page frame for data frames with non-interleaved alignment - buffer in user space for data frames with interleaved alignment - a list of buffer in user space for data frames with non-interleaved alignment This commit adds a common interface, named as 'mapper' to convert frame alignment between these two sides. This interface includes two types; 'muxer' and 'demuxer'. The 'muxer' is for playback direction, to construct playback buffer with PCM frames from several files. The 'demuxer' is for capture direction, to split PCM frames from capture buffer to each of file. Unlike multimedia containers such as MPEG 2/4 Systems, the 'muxer' and 'demuxer' are for playback/capture buffer, not for file contents. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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|---|---|---|
| alsa-info | ||
| alsaconf | ||
| alsactl | ||
| alsaloop | ||
| alsamixer | ||
| alsaucm | ||
| amidi | ||
| amixer | ||
| aplay | ||
| axfer | ||
| bat | ||
| iecset | ||
| include | ||
| m4 | ||
| po | ||
| seq | ||
| speaker-test | ||
| topology | ||
| utils | ||
| .gitignore | ||
| .travis.yml | ||
| acinclude.m4 | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| gitcompile | ||
| INSTALL | ||
| Makefile.am | ||
| README.md | ||
| TODO | ||
alsa-utils
Advanced Linux Sound Architecture - Utilities
This package contains the command line utilities for the ALSA project. The package can be compiled only with the installed ALSA driver and the ALSA C library (alsa-lib).
| Utility | Description |
|---|---|
| alsaconf | the ALSA driver configurator script |
| alsa-info | a script to gather information about ALSA subsystem |
| alsactl | an utility for soundcard settings management |
| aplay/arecord | an utility for the playback / capture of .wav,.voc,.au files |
| amixer | a command line mixer |
| alsamixer | a ncurses mixer |
| amidi | a utility to send/receive sysex dumps or other MIDI data |
| iecset | a utility to show/set the IEC958 status bits |
| speaker-test | a speaker test utility |
| alsaloop | a software loopback for PCM devices |
| alsaucm | Use Case Manager utility |
| alsabat | a sound tester for ALSA sound card driver |
| alsatplg | ALSA topology compiler |
You may give a look for more information about the ALSA project to URL http://www.alsa-project.org.