alsa-lib | ALSA library

 by   tiwai C Version: v1.0.26 License: LGPL-2.1

kandi X-RAY | alsa-lib Summary

kandi X-RAY | alsa-lib Summary

alsa-lib is a C library typically used in Internet of Things (IoT), Raspberry Pi applications. alsa-lib has no bugs, it has a Weak Copyleft License and it has low support. However alsa-lib has 1 vulnerabilities. You can download it from GitHub.

ALSA library
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            kandi-support Support

              alsa-lib has a low active ecosystem.
              It has 10 star(s) with 8 fork(s). There are 4 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 2 open issues and 1 have been closed. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of alsa-lib is v1.0.26

            kandi-Quality Quality

              alsa-lib has no bugs reported.

            kandi-Security Security

              alsa-lib has 1 vulnerability issues reported (0 critical, 0 high, 1 medium, 0 low).

            kandi-License License

              alsa-lib is licensed under the LGPL-2.1 License. This license is Weak Copyleft.
              Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

            kandi-Reuse Reuse

              alsa-lib releases are not available. You will need to build from source code and install.

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            alsa-lib Key Features

            No Key Features are available at this moment for alsa-lib.

            alsa-lib Examples and Code Snippets

            No Code Snippets are available at this moment for alsa-lib.

            Community Discussions

            QUESTION

            ALSA in C++ - Making the minimal working code
            Asked 2020-Aug-22 at 10:32
            Topic

            I would like to make the minimal working code to generate any kind of PCM sound using ALSA in C++ for a Linux computer.

            Setup

            I'm coding in C++ on Code::Blocks with Ubuntu 20.04.

            Background

            I used to make simple Arduino UNO programs doing sound processing and just needed to play raw PCM samples.

            Issues

            ALSA Project's Website is not very easy to understand.

            I looked at c - ALSA tutorial required to find out that many links are expired.

            I copy pasted the code of the minimal PCM example in C directly into a empty Code::Blocks project and I got that error:

            ...

            ANSWER

            Answered 2020-Aug-21 at 18:00

            Follow these steps:

            1. Install the ALSA development package, or make sure it is already installed. The name depends on your distribution. In my case (OpenSUSE Tumbleweed) it is alsa-devel. This will install the file asoundlib.h under the directory /usr/include/alsa.
            2. Change the line in your code from #include "../include/asoundlib.h" to #include . Notice the angular brackets instead of quotation marks.
            3. The library which you want to link against is named libsound.so, so compile the program with a command like gcc -Wall pcm_min.c -lasound -o pcm_min
            4. Run the program: ./pcm_min

            Source https://stackoverflow.com/questions/63527700

            QUESTION

            Running apt-get install within Docker container: "Unable to connect to deb.debian.org" part-way through installing dependencies
            Asked 2020-Jun-20 at 13:58

            I'm trying to build a docker container on a Raspberry Pi 3B. I need to install gpac for MP4Box.

            Dockerfile

            ...

            ANSWER

            Answered 2020-Jun-20 at 13:58

            It ended up being wifi issues. Switching to a wired connection fixed the issues I was having.

            Source https://stackoverflow.com/questions/62480272

            QUESTION

            VBA Display in a listbox based on two dynamic comboboxes
            Asked 2020-Jan-03 at 13:39

            I would like to display the result of 2 comboboxes in a listbox but I don't know how to do it...

            Here's what I've got so far :

            Depending on the left-hand combobox, it implies the results of the right-hand combobox.

            1/ I would like to display the package version ($E) and the package release ($F) of the package name selected on the right-hand combobox for the project selected on the left combobox, ("monitoring" in this example).

            2/ If I select "ALL" package name, I would like to display $E and $F.

            Here is my current code :

            ...

            ANSWER

            Answered 2020-Jan-02 at 17:27

            My rule is never use RowSource. Generally, if you can put the information in an array, then you can assign that array to the Lisbtobx.List property. The other method is to add a new item with AddItem and then fill out the rest of the columns with the List() property. Below is an example. I made some minor changes to your existing code and the ComboBox2_Change code I think is what you're interested in.

            Source https://stackoverflow.com/questions/59564513

            QUESTION

            docker alpine with node js and chromium headless - puppeter - failed to launch chrome
            Asked 2019-Dec-25 at 18:34

            I'm trying to run a custom node command from within an Alpine linux docker container.

            Installed packages:

            ...

            ANSWER

            Answered 2018-Jan-17 at 07:08

            If you want to get puppeteer to work on alpine, try using an older version of puppeteer that works with an older version of Chrome. The newest version of Chrome supported on Alpine is 63, which was the version of Chrome used during the development of puppeteer version 0.11.0.

            Source https://stackoverflow.com/questions/48230901

            QUESTION

            R error: argument to 'which' is not logical
            Asked 2019-Sep-03 at 03:58

            I have a vector with file names. Several of the files in the vector are repeated with different versions. For example

            "ConsoleKit2-1.0.0-x86_64-3"

            "ConsoleKit2-1.0.0-x86_64-4"

            "Cython-0.23.4-x86_64-1"

            "Cython-0.29.12-x86_64-1"

            "GConf-3.2.6-x86_64-3"

            "GConf-3.2.6-x86_64-4"

            "LibRaw-0.17.2-x86_64-1"

            "LibRaw-0.18.12-x86_64-1"

            "M2Crypto-0.23.0-x86_64-1"

            "M2Crypto-0.35.2-x86_64-1"

            "MPlayer-1.2_20160125-x86_64-3"

            "MPlayer-20190418-x86_64-1"

            "Mako-1.0.13-x86_64-1"

            "ModemManager-1.10.4-x86_64-1"

            "ModemManager-1.4.14-x86_64-1"

            "NetworkManager-1.18.1-x86_64-1"

            "NetworkManager-1.2.2-x86_64-2"

            "PyQt-4.11.4-x86_64-1"

            "PyQt-4.12.1-x86_64-3"

            "QScintilla-2.10.8-x86_64-2"

            ...

            ANSWER

            Answered 2019-Sep-03 at 02:03

            Your code doesn't fail in the same way for me. If I run:

            Source https://stackoverflow.com/questions/57764062

            QUESTION

            Why does "php --version" return "Segmentation fault (core dumped)" after installing phpLDAPadmin?
            Asked 2019-Aug-29 at 16:30

            I'm running Apache 2.4 on FreeBSD (FAMP stack) and had Wordpress successfully hosting a website. However I recently tried to install phpLDAPadmin in order to manage an LDAP server and now whenever Apache is running, any page on my site displays the following:

            Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /usr/local/www/apache24/data/wp-includes/wp-db.php:1643 Stack trace: #0 /usr/local/www/apache24/data/wp-includes/wp-db.php(639): wpdb->db_connect() #1 /usr/local/www/apache24/data/wp-includes/load.php(427): wpdb->__construct('user', 'pass', 'wordpressdb', 'localhost') #2 /usr/local/www/apache24/data/wp-settings.php(120): require_wp_db() #3 /usr/local/www/apache24/data/wp-config.php(92): require_once('/usr/local/www/...') #4 /usr/local/www/apache24/data/wp-load.php(37): require_once('/usr/local/www/...') #5 /usr/local/www/apache24/data/wp-blog-header.php(13): require_once('/usr/local/www/...') #6 /usr/local/www/apache24/data/index.php(17): require('/usr/local/www/...') #7 {main} thrown in /usr/local/www/apache24/data/wp-includes/wp-db.php on line 1643

            The site is experiencing technical difficulties.

            Furthermore, when I went to check the version of php, this happens:

            ...

            ANSWER

            Answered 2019-Aug-29 at 16:30

            Ok, I finally fixed this!

            The problem must have been related to upgrading PHP, probably from PHP 7.1 to PHP 7.2. I'm assuming this happened when I installed phpLDAPadmin, which is what triggered the issue.

            Firstly, I was able to solve the segmentation fault/core dump issue by running the following:

            Source https://stackoverflow.com/questions/57618320

            QUESTION

            Passing params from alsa application to kernel driver
            Asked 2019-May-27 at 06:54

            I try to follow the path of parameters setting from linux user space (arecord/aplay) down to kernel driver. Let's take arecords --period-size as an example.

            It all starts in set_params function in aplay.c:

            ...

            ANSWER

            Answered 2019-May-27 at 06:54

            The hw_params structure contains a configuration space, which is a description of all possible configurations that the device can support. Numeric parameters are described as intervals (i.e., min and max), access and format as bitmasks.

            When you change one parameter, the library calls the kernel driver (SNDRV_PCM_IOCTL_HW_REFINE) to adjust all the other parameters in the hw_params structure that depend on the changed parameter.

            After you have reduced the configuration space to the configuration you actually want, you call snd_pcm_hw_params() (→ SNDRV_PCM_IOCTL_HW_PARAMS) to actually configure the device for those parameters. (If some parameter has not been reduced to a single value, snd_pcm_hw_params() will choose a random one.)

            snd_pcm_hw_params_set_xxx_near() is more complex because there is no SET_NEAR ioctl. This function tries to adjust the interval so that either its maximum or its minimum is the desired value, and then check whether the actual maximum or minimum is nearer.

            For example, assume a device that supports period sizes of 1024, 2048, 4096, and 8192 frames. Initially, the interval is described as [1024, 8192]. When you call snd_pcm_hw_params_set_period_size_near(4000), the snd_pcm_hw_param_set_near() helper function calls set_min(4000) and set_max(4000) (on separate copies of the hw_params structure), so the intervals are [1024, 4000] and [4000, 8192]; after refining, the driver returns the intervals [1024, 2048] and [4096, 8192]. snd_pcm_hw_param_set_near() then sees that 4096 is nearest to the desired calue, so it then calls set_first on the second interval, which results in [4096, 4096].

            Source https://stackoverflow.com/questions/56318054

            QUESTION

            How to build Qt5 sdk in Yocto for Raspberry PI?
            Asked 2019-May-22 at 21:21

            I am trying to build meta-toolchain-qt5. However, I am getting these errors. I am following the guide - Guide Qt5 build

            Here are the things I have done so far -

            Inside poky -

            ...

            ANSWER

            Answered 2019-May-22 at 02:23

            You have two options

            First

            tslib is provided by meta-oe layer so you need to get that layer and add that to your BBLAYERS so inside your poky tree

            Source https://stackoverflow.com/questions/56247173

            QUESTION

            ModuleNotFoundError When Copying a Host Directory to Container in DockerFile
            Asked 2019-Apr-01 at 01:12

            I'm going crazy trying to ADD a directory from my host machine to my docker container. When building the container with docker-compose up --build, it seems to ADD just fine, but when I try to access module in my app.py file, I get the ModuleNotFoundError

            My DockerFile contains the following:

            ...

            ANSWER

            Answered 2019-Apr-01 at 01:12

            I may be missing some context but I think you've several issues:

            • You COPY /scraper... and ADD /common... -- are these directories hanging from root on your local machine?
            • You set WORKDIR after COPY and ADD but generally (although not required), you'd set this first as a default destination and then you could COPY something . and ADD something . and these destinations (.) would refer to your WORKDIR
            • You use /home/scraper as your WORKDIR but you don't copy and add your files into it. It will be empty at this point.
            • Your ENTRYPOINT references app.py but your file is called test.py

            One useful debugging tool is to shell into containers to e.g. examine the directory structure to confirm it's as expected. Assuming your image is called scraper, you could:

            Source https://stackoverflow.com/questions/55446046

            QUESTION

            Installing chrome driver with version docker
            Asked 2019-Mar-26 at 16:06

            I have one docker file which setup chromium browser and chromium driver using alpine base image. Currently it is setting up latest version? Is there any way to specify version here?

            ...

            ANSWER

            Answered 2019-Mar-26 at 16:06

            Unfortunately this is not possible. In theory you could use something like

            Source https://stackoverflow.com/questions/55361153

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install alsa-lib

            You can download it from GitHub.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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          • HTTPS

            https://github.com/tiwai/alsa-lib.git

          • CLI

            gh repo clone tiwai/alsa-lib

          • sshUrl

            git@github.com:tiwai/alsa-lib.git

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