mpc mixer

register value and found that the volume register value did not change at all, but the volume actually changed. At that time, we suspected that our android volume adjustment was not implemented by hardware, but by its own SW mixer mechanism. When I had dinner with vic in the evening, I had a chat about it. When we continue to track the android audio system today, we find that no matter what the connection between Android and snd_kcontrol is found, wh

The newest gcc-5.1.0 was released and couldn't wait to put it on the test.Download gcc-5.1.0 in http://ftp.gnu.org/gnu/gcc/Then extract to directory gcc-5.1.0/Run Download dependent packages required for compilationGCC dependency packages are: m4-1.4.17.tar.gz,gmp-5.1.3.tar.gz mpfr-3.1.2.tar.gz mpc-1.0.3.tar.gzBut these packages are too new, these dependencies are too new, too old to be able to use only the appropriate version, so the use of GCC's

blocking.Default Value: 8-bit unsigned data, single channel, 8 KHz sampling rate. /Dev/AudioSimilar to/dev/DSP, for compatibility purposes, it is compatible with audio devices on SUN workstations and uses the Mu-Law encoding method. For applications, only one of/dev/DSP or/dev/Audio can be used at the same time, because they are different software interfaces of the same hardware. /Dev/MixerThe software interface of the application to the mixer. The

being independent from the network address. All packages from the synchronization source form the same time and sequence number intervals, so that the receiver can combine the synchronization source package into a group during playback. A synchronization source can change its data format, such as audio encoding. The synchronization source identifier is a randomly selected value. It must be unique throughout the RTP session. In multimedia sessions, a participant does not need to use the same SSR

found that the volume register value did not change at all, but the volume actually changed. At that time, we suspected that our Android volume adjustment was not implemented by hardware, but by its own sw mixer mechanism. When I had dinner with Vic in the evening, I had a chat about it. When we continue to track the Android audio system today, we find that no matter what the connection between Android and snd_kcontrol is found, whether it is the na

MARS_REQUEST information. MARS returns the MARS_MULTI information, this information contains the addresses of multicast servers or group members in the group. If the Group supports multicast servers, the request node establishes a connection with the server, send data to the server, which forwards the data to nodes in the group. In the multicast network solution, the request node establishes a point-to-multiple connection with the node in the group and sends data through the connection.　4. MPOA

GMP (GNU multiple Precision Arithmetic library, the GNU High Precision Arithmetic database), is an open source high-precision computing library, which not only has ordinary integers, real numbers, floating-point numbers of high-precision operations, as well as random number generation, In particular, it provides a very complete computational interface in number theory, such as miller-rabin Prime number test algorithm, large prime number generation, Euclidean algorithm, inverse of elements in the

package directly (although this can be done )) Currently, the gcc configuration phase cannot be started, because the system lacks a library (I have encountered an error before knowing) I would like to declare it first (I do not know what to do with c in the absence of the gmp mpfr MCM three libraries) Specifically, there are three libraries of the source package on google download unzip and then install them in a directory through compilation (My gmp-5.0.1,

# Compile GCC 4.8.2 in Ubuntu-x64bit # Install necessary software packagesSudo apt-get updateSudo apt-get install gccSudo apt-get install g ++Sudo apt-get install gawkSudo apt-get instll m4Sudo apt-get install gcc-multilibSudo apt-get install binutilsSudo apt-get install lzip # Creating a GCC directoryCd ~Mkdir GCC cd GCC # Download GCC-4.8.2 source code: http://gcc.gnu.org/mirrors.html# Download three required libraries: gmp, mpfr, and nm5. depending on the dependency: mpfr depends on gmp, and

For Linux small white, only need to know how to install, as for why wait for the study of Linux again. Knowledge is not the disadvantage of the system Ah!First of all, the low-level version of GCC is preinstalled on Ubuntu, which can handle the C+class+stl style of the brush OJ, but because the coldThe fake is very stubborn to see C++primer, so only the compiler to upgrade to the latest version to meet the C++11/14 standard.There are a few things you must do to install GCC :1. GCC5.3.0 source co

syntax error does not support else ifeqCxxflags = $ (cxxflags_debug)Libname: = $ (Libname_debug)ElseCxxflags? = $ (Cxxflags_default)endifendifYou can set the Build_type by setting the environment variable, such as: Export Build_type=debugYou can also set the installation directory for make install by using environment variables, such as: Export Prefix=/usr/local/libjsonRelated Small Knowledge:In the makefile file, PREFIX=/USR and prefix?=/usr are different, the former assignment cannot be overr

configuration commands for the following two libraries are as follows: /Usr/local/mpfr-2.3.1/configure -- prefix =/usr/local/mpfr-2.3.1 -- with-gmp =/usr/local/gmp-4.2 /Usr/local/mpc-0.8/configure -- prefix =/usr/local/mpc-0.8 -- with-gmp =/usr/local/gmp-4.2 -- with-mpfr =/usr/local/mpfr-2.3.1 After these three libraries are installed, you can officially start to install gcc. 3.As before, first create a t

Since the launch of shooter audio and video, more and more times have been drowned by Code and various bugs-fix. It takes too long to bury yourself in the field and often forgets where you are. So occasionally, we will share some experiences and experiences with you. Media Playback tools mainly refer to video playback. Due to the huge compatibility and complicated algorithms, there are only a few systems that stand out from the architecture. Generally, there are three major architectures in the

DAPM is the acronym for Dynamic Audio Power management, which means that the audio subsystem on a Linux based mobile device is designed to work in a minimum power state at all times. DAPM is transparent to user-space applications, and all power-related switches are done in ASOC core. User-space Applications do not need to modify the code, and do not need to recompile, DAPM the power switch of the audio control is turned on or off, depending on the configuration of the current active audio stream

. The receiver will distinguish the different sources according to the SSRC identifier and carry out the grouping of RTP packets. A special source means that when the mixer receives the RTP message of one or more synchronous sources, a new combined RTP message is generated by a mixed process, and the mixer is used as the ssrc of the combined RTP message, and all the original SSRC are transmitted to the rece

First download the source code: Release First download the source code:Ftp://ftp.dti.ad.jp/pub/lang/gcc/releases/gcc-4.6.1/# Download gcc-4.6.1.tar.bz2 Ftp://ftp.dti.ad.jp/pub/lang/gcc/infrastructure/# Download gmp-4.3.2.tar.bz2 mpfr-2.4.2.tar.bz2 mpc-0.8.1.tar.gz Step 0: 123 $sudo apt-get install build-essential$sudo apt-get install zlibc$sudo apt-get install zlib1g-dev Step 1: Install gmp-4.3.2 1234 #cd to src_dir$./con

the above address, respectively download MPFR/GMP/MPC three files, and unzip the installation. Since the MPC relies on MPFR and GMP,MPFR relies on GMP, the installation order is GMP, MPFR, MPC.gmp-4.3.2.tar.bz2mpfr-2.4.2.tar.bz2Mpc-0.8.1.tar.gz5. Compile and install GMP$tar-JVXF ~/gmp-4.3.2.tar.bz2$CD gmp-4.3.2$./configure--prefix=~ /gcclib/gmp432 (Custom configuration path)$make make Install6. Compile an

:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:‘;export LS_COLORS Simply put, the file is compressed into a variable, and each configuration is separated by a colon. We can see that the second di = 01; 35 is our configuration.Finally, export ls_colors sets this variable as a global v

Solemnly declare: This article is written by the author based on my personal understanding. errors are inevitable. Please be prepared! You can reprint, modify, and indicate the source when reprinting! System Environment Operating System: Ubuntu 10.04 LTS-Lucid lynxKernel version: 2.6.35-32-generic i686 GNU/LinuxSystem GCC version: GCC (Ubuntu/linaro 4.4.4-14ubuntu5. 1) 4.4.5 I. PreparationsThree software packages are required for GCC Compilation: GMP, mpfr, and

The following is a compilation script (For details, refer to LFS and GCC-configure)# Downloadwget http://www.multiprecision.org/mpc/download/mpc-0.8.1.tar.gzwget http://ftp.gnu.org/gnu/gcc/gcc-4.5.0/gcc-4.5.0.tar.bz2wget http://ftp.gnu.org/gnu/gmp/gmp-5.0.1.tar.bz2wget http://www.mpfr.org/mpfr-2.4.2/mpfr-2.4.2.tar.bz2 # Tools path; use your own settingrootdir =/work/tools/stesen/toolsmkdir-PV $ rootdirln-SV