雖然這篇Snd_pcm_open鄉民發文沒有被收入到精華區：在Snd_pcm_open這個話題中，我們另外找到其它相關的精選爆讚文章
[爆卦]Snd_pcm_open是什麼？優點缺點精華區懶人包
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#1snd_pcm_open
The snd_pcm_open() function creates a handle and opens a connection to the audio interface for sound card number card and audio device number device. It also ...
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#2雜記asla-lib庫函式snd_pcm_open開啟流程- IT閱讀
snd_pcm_open (&handle, pcm_name, stream, open_mode);. // 開啟一路pcm,重新整理config配置如果是"default",同時type等於SND_CONFIG_TYPE_COMPOUND ...
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#3snd_pcm_open 函数分析一_这个冬天有点酷 - CSDN博客
snd_pcm_open 函数分析一1. 参数和返回值2. 调用流程1. 参数和返回值int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, ...
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#4the C library reference: PCM Interface - ALSA project
int, snd_pcm_open (snd_pcm_t **pcm, const char *name, snd_pcm_stream_t stream, int mode). Opens a PCM. More... int, snd_pcm_open_lconf (snd_pcm_t **pcm, ...
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#5如何調用snd_pcm_open函數 - 台部落
2018年8月27日 — 之前確定到當打開pcm設備的時候，會執行到snd_pcm_open,這個open會導致substream->ops->open(substream)的調用。 這個open函數在snd_pcm_set_ops函數 ...
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#6C++ (Cpp) snd_pcm_open Examples - HotExamples
C++ (Cpp) snd_pcm_open - 30 examples found. These are the top rated real world C++ (Cpp) examples of snd_pcm_open extracted from open source projects.
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#7android audio/linux alsa音訊-應用層基礎
snd_pcm_open. 1. 引數和返回值. int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode).
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#8笔记： C 音频采集捕捉的小实验 - 知乎专栏
rc = snd_pcm_open(&handle, "default", SND_PCM_STREAM_CAPTURE, 0); if (rc < 0) { fprintf(stderr, "unable to open pcm device: %s\n", snd_strerror(rc)); ...
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#9ALSA snd_pcm_hw_params_any crashed when run the ...
The call to snd_pcm_open() open fails. The error code check then fails because pcm is unsigned. snd_pcm_hw_params_any() then crashes because ...
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#10snd_pcm_open
The snd_pcm_open() function creates a new handle and opens a connection to the audio interface for soundcard number card (0-N) and audio device number ...
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#11除了“默认”外，我还必须在snd_pcm_open中提供什么设备名称
内部麦克风; 外部USB网络摄像头麦克风. 使用 pulseaudio 声音控制器，我将这些设备中的任何一个设置为默认设备，并可以使用录制声音 snd_pcm_open(&handle ...
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#12Simple sound playback using ALSA API and libasound - gists ...
if (pcm = snd_pcm_open(&pcm_handle, PCM_DEVICE,. SND_PCM_STREAM_PLAYBACK, 0) < 0). printf("ERROR: Can't open \"%s\" PCM device. %s\n",.
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#13snd_pcm_open identifier - Linux source code (v4.5) - Elixir ...
Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders, ...
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#14snd_pcm_open 函数分析一_这个冬天有点酷-程序员资料
snd_pcm_open 函数分析一1. 参数和返回值2. 调用流程1. 参数和返回值int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode)pcmp ...
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#15全志R329如何解决蓝牙播放无声（snd_pcm_open error
从log来看，播放时没有成功打开蓝牙虚拟声卡，所以播放没有声音是必然的。其中打开蓝牙声卡是使用标准函数snd_pcm_open， 而错误信息是Out of memory。显然从日志来看，此 ...
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#16linux alsa-lib snd_pcm_open 源代码详细分析_i826056899的 ...
linux alsa-lib snd_pcm_open函数源码分析（六): https://blog.whatsroot.xyz/2020/08/16/alsa_snd_open-analysis-6/. 版权声明：本文为博主原创文章，遵循 CC 4.0 ...
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#17snd_pcm_open 函数分析一_这个冬天有点酷-程序员秘密
snd_pcm_open 函数分析一1. 参数和返回值2. 调用流程1. 参数和返回值int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode)pcmp ...
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#18【ALSA】snd_pcm_open解析 - 极客分享
接口声明[code]int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode)； 参数含义： pcmp 打开的pcm句柄name 要 ...
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#19使用ALSA 库的音频捕获- snd_pcm_open => 没有这样的文件或 ...
int returnCode; snd_pcm_t *pcm_Handle; char *pcm_device_name = "hw:0,0"; returnCode = snd_pcm_open(&pcm_Handle, pcm_device_name, SND_PCM_STREAM_CAPTURE, 0);
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#20ALSA error: snd_pcm_open failed: No such file or directory
Maybe related to recent upgrade to new kernel & reboot: 5.10.2-2-MANJARO Audio was allright after reboot, but suddenly stopped: system ...
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#21What is the PulseAudio virtual sink name for ALSA ...
I loaded a PulseAudio module-null-sink , when I set it as system default output device, the ALSA snd_pcm_open(&pcm_handle, "default", ...
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#22如何调用snd_pcm_open函数- 代码先锋网
之前确定到当打开pcm设备的时候，会执行到snd_pcm_open,这个open会导致substream->ops->open(substream)的调用。 这个open函数在snd_pcm_set_ops函数设置 ...
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#23undefined reference to `snd_pcm_open'_爱唠叨的老鱼
但是在编译程序的时候有个比较奇怪的问题。 undefined reference to `snd_pcm_open' 一般来说，这肯定是程序链接的时候，找不到链接库。 可我明明在gcc的参数里面加 ...
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#24what device name should I have to ... - Unix Stack Exchange
external usb webcam mic. Using pulseaudio sound controller, I set either of these devices as default and could record sound with snd_pcm_open(&handle, "default" ...
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#255.ALSA录放音 - 简书
int err; if ((err = snd_pcm_open(&chandle, device, SND_PCM_STREAM_CAPTURE, 0)) < 0) { std::cout << "Capture device open failed.
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#26如何在Linux中以程式設計方式發現ALSA音訊裝置功能而無需 ...
問題是，我需要向 snd_pcm_open() 函式提供引數才能使用對我來說很愚蠢的測試函式。為什麼必須先將其告知開啟功能，才問這是回放裝置還是錄音裝置？
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#27ubuntu：undefined reference to `snd_pcm_open - 51CTO博客
ubuntu：undefined reference to `snd_pcm_open'，这几天在做一个局域网的对讲机和广播系统。需要用到alsa的库来进行音频采集和播放。
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#28C++ snd_pcm_sw_params_alloca函數代碼示例- 純淨天空
snd_pcm_t *open_pcm(char *pcm_name) { snd_pcm_t *playback_handle; snd_pcm_hw_params_t *hw_params; snd_pcm_sw_params_t *sw_params; if (snd_pcm_open ...
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#29ALSA聲音編程介紹 - 立你斯學習記錄
snd_pcm_open 打開默認的PCM 設備並設置訪問模式為PLAYBACK。這個函數返回一個控制碼，這個控制碼保存在第一個函數參數中。該控制碼會在隨後的函數中用到 ...
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#30Linux ALSA詳解 - IT145.com
snd_pcm_open ("default", SND_PCM_STREAM_PLAYBACK) // alsa-lib介面open("/dev/snd/controlC0") // 開啟控制裝置; 主裝置116, 次裝置0 open("/dev/snd/pcmC0D0p") ...
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#31Threadloop_write到snd_pcm_open-白红宇的个人博客
如图所示，audiotrack的start函数进行一系列操作，最终调用了broadcast_l()函数，发送广播，唤醒了MixerThread::threadloop。 MixerThread线程环接收到 ...
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#32AW: snd_pcm_open hangs intermittently?
Use SND_PCM_NONBLOCK flag for snd_pcm_open(). Jaroslav ----- Jaroslav Kysela <***@suse.cz> Linux Kernel Sound Maintainer ALSA Project http://www ...
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#33snd_pcm_open 函数分析一_这个冬天有点酷 - 程序员ITS404
snd_pcm_open 函数分析一1. 参数和返回值2. 调用流程1. 参数和返回值int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode)pcmp ...
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#34What device name should I have to give in ... - iTecTec
external usb webcam mic. Using pulseaudio sound controller, I set either of these devices as default and could record sound with snd_pcm_open(&handle, "default" ...
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#35snd_pcm_open,杂记alsa-lib库函数snd_pcm - 简明教程
aplay.c==> main==> snd_pcm_open(&handle, pcm_name, stream, open_mode);. // 打开一路pcm,刷新config配置如果是"default", ...
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#36Raspberry Pi ALSA输入错误(snd_pcm_open) 没有这样的文件 ...
我是树莓派的新手，所以如果我有什么不清楚的地方，请原谅。 我正试图设置Raspberry Pi 3运行Pure Data补丁，同时与两个Arduino UNO进行通信，
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#37undefined reference to `snd_pcm_open' - CodeAntenna
关于本文更详细的内容，欢迎关注我的个人网站《程序员网》这几天在做一个局域网的对讲机和广播系统。需要用到alsa的库来进行音频...,CodeAntenna技术文章技术问题代码 ...
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#38alsa-lib: pcm: segmentation fault snd_pcm_open - Patchwork
Previously, calling snd_pcm_open with a null pointer argument for "name" caused a segmentation fault in snd_config_search_definition.
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#39ALSA：以共享模式打开PCM设备 - 中国服务器网
我假设 snd_pcm_open 获得设备资源的专有权，以便其他进程不能使用它。 但我不想那样我想在audio设备上播放声音，而不需要任何专有权限，以便PC中的其他进程可以共享 ...
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#40undefined reference to `snd_pcm_open' - 程序员大本营
undefined reference to `snd_pcm_open'，程序员大本营，技术文章内容聚合第一站。
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#41Linux下Alsa编程snd_pcm_open函数返回-111 - 百度知道
Linux下Alsa编程snd_pcm_open函数返回-111，说是connect refused，这是为什么啊 200 · 其他类似问题 · 为你推荐： · 等你来答.
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#42asla-lib库函数snd_pcm_open打开流程_zgp2917的专栏
本文转自：http://blog.chinaunix.net/uid-20564848-id-74356.html《alsa声卡/dev/snd /pcmC0D0p的open打开流程》杂记asla-lib库函数snd_pcm_open打开流程浅析ac97 ...
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#43ALSA發聲從class到功能模組 - 程序員學院
snd_pcm_open. snd_pcm_close. snd_pcm_open. 每次送來的資料大小不可以太小. 原來1/10秒現在1/4秒. 希望以後調整音量做成. fade in fade out.
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#44通过SSH的ALSA(snd_pcm_open)吗？ | 码农家园
ALSA (snd_pcm_open) over SSH?我已经使用ALSA(snd_pcm_open，snd_pcm_readi等)编写了一个应用程序。 该应用程序在我的机器上本地完美运行。
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#46ALSA lib open分析 - 博客园
int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode)；. 先解一下各个参数的函义：. pcmp: 是带回的pcm流 ...
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#47Miscellaneous asla-lib library function snd_pcm_open to open ...
snd_pcm_open (&handle, pcm_name, stream, open_mode);. //Open all the way to pcm, refresh the config configuration if it is "default", and the type is equal ...
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#48snd_pcm_open函数分析二_这个冬天有点酷 - 程序员ITS201
snd_pcm_open 函数分析二. 版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
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#49Golang snd_pcm_open示例- zhblog - 编程生活
golang snd_pcm_open示例是从最受好评的开源项目中提取的实现代码，你可以参考下面示例的使用方式。
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#50ALSA (snd_pcm_open) over SSH? - TipsForDev
I have written an application using ALSA (snd_pcm_open, snd_pcm_readi, etc). The application works perfect locally on my machine. However, when I SSH to ...
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#51puredata ALSA output error (snd_pcm_open): No such file or ...
ALSA output error (snd_pcm_open): No such file or directory // list sound card device $ aplay -l // try the correct sound device
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#52snd_pcm_open和snd_ctl_open有什么区别？
snd_pcm_open 和snd_ctl_open有什么区别？ 18 views. Skip to first unread message.. com lee's profile photo ...
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#53ALSA output error (snd\_pcm\_open) Device or resource busy
But it doesn't work for me. After I click on ALSA (like the guy in the video) I get this error: "ALSA output error (snd_pcm_open): Device or ...
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#54c++ - Захват звука с использованием библиотеки ALSA
Теперь у меня есть int returnCode; snd_pcm_t *pcm_Handle; char *pcm_device_name = "hw:0,0"; returnCode = snd_pcm_open(&pcm_Handle, pcm_de....
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#55snd_pcm_open => No such file or directory - Stackify
Audio capturing using ALSA library - snd_pcm_open => No such file or directory. alsac-audiocapture · Banner shop stackify.dev ...
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#56Alsa snd_pcm_open segmentation fault - Ubuntu Forums
Alsa snd_pcm_open segmentation fault. I am trying to open an audio interface on my desktop device, by calling the ALSA Api function:.
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#57Threadloop_write到snd_pcm_open-爱代码爱编程
... 故执行在AudioFlinger::PlaybackThread::threadLoop中。此版本的线程环包含了其他线程的判断。... Threadloop_write到snd_pcm_open.
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#58Linux&音訊】Alsa音訊程式設計【精華】 | 程式前沿
rc = snd_pcm_open(&handle, “default”,; SND_PCM_STREAM_PLAYBACK, 0);; if (rc < 0) {; fprintf(stderr,; “unable to open pcm device: %s\n”, ...
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#59How to call the snd_pcm_open function - Programmer Sought
So to see how snd_pcm_open is called, then you need to see who called the alsa character device. Here you can know that under \external\tinyalsa\pcm.c, there is.
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#60sox default device - Raspberry Pi Forums
rec FAIL formats: can't open input `default': snd_pcm_open error: No such file or directory. AUDIODEV=hw:1 rec samples/temp.flac
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#61[Alsa-devel] Re: snd_pcm_open not threadsafe? - The Mail ...
On Mon, 3 Dec 2001, Alexander Ehlert wrote: > Hi, > > can it be, that snd_pcm_open in the alsa lib is not threadsafe?
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#62ALSA (snd_pcm_open) over SSH? - py4u
I have written an application using ALSA (snd_pcm_open, snd_pcm_readi, etc). The application works perfect locally on my machine. However, when I SSH to ...
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#63alsa programing example - San Song Daddy :)
... mode */ if (pcm = snd_pcm_open(&pcm_handle, PCM_DEVICE, SND_PCM_STREAM_PLAYBACK, 0) < 0) printf("ERROR: Can't open \"%s\" PCM device.
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#64ALSA API - snd_pcm_open: Assertion `pcmp && name' failed.
ALSA API - snd_pcm_open: Assertion `pcmp && name' failed. [Log in to get rid of this advertisement]. Hi all. I am starting with alsa development ...
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#65ALSA庫程式設計要點 - w3c學習教程
1、snd_pcm_open，開啟控制代碼。 2、配置引數，可能用到的介面：snd_pcm_hw_params_alloca、snd_pcm_hw_params_any、snd_pcm_hw_params_set_rate_near、 ...
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#66【转】杂记alsa-lib库函数snd_pcm_open打开流程 - 新浪博客
【转】杂记alsa-lib库函数snd_pcm_open打开流程_wyzhit_新浪博客,wyzhit,
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#672.00 DaVinci Linux Audio Driver - User's Guide - Texas ...
snd_pcm_open. Opens a PCM stream snd_pcm_close. Closes a previously opened PCM stream snd_pcm_hw_params_any. Fills params with a full configuration space ...
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#68RtApiAlsa snd_pcm_open error (during STK real time test)
./configure and make worked without any problems. ... RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (hw:0,0), Device or resource busy.
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#69Alsa Library: Error opening PCM playback device - NXP ...
retVal = snd_pcm_open( &pcm_playback, playback_device, SND_PCM_STREAM_PLAYBACK, 0);. The Navigation device which I have is a USB device.
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#70undefined reference to `snd_pcm_open - ALSA User - spinics ...
/tmp/cciOZb0m.o: In function `main': pcm_min.c:(.text+0x6c): undefined reference to `snd_pcm_open' pcm_min.c:(.text+0x88): undefined ...
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#71Alsa Audio Capture - 史丹利部落格
rc = snd_pcm_open(&handle, "default", SND_PCM_STREAM_CAPTURE, 0); if (rc < 0) { fprintf(stderr, "unable to open pcm device: %s\n", ...
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#72android audio/linux alsa音频-应用层基础转 - OSCHINA
snd_pcm_open 1. 参数和返回值int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode) pcmp 打开的pcm句柄name ...
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#73snd_pcm_open open process - Titan Wolf
snd_pcm_open (&handle, pcm_name, stream, open_mode);//Open a pcm and refresh the config configuration. If it is "default" and the type is equal to ...
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#74ALSA: open a PCM device in shared mode - Genera Codice
Looking at the source code of this example I could say that the snd_pcm_open function at line 882 is throwing this error. It finds the device busy since ...
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#75programs that call snd_pcm_open segfault if debugged inside ...
\n",argv[1]); i = 0; if ((err = snd_pcm_open (&capture_handle, argv[1], SND_PCM_STREAM_CAPTURE, 0)) < 0) { fprintf (stderr, "cannot open audio device %s ...
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#76[solved] RPi + sound synthesis - arm - OpenFrameworks Forum
RtApiAlsa::getDeviceInfo: snd_pcm_open error for device (default), No such file or directory using soundStream.setDeviceID(1); works for the ...
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#77[SOLVED] ALSA sound not working - Arch Linux Forums
ALSA error: snd_pcm_open failed: No such file or directory. Here's my system: $ aplay -l **** List of PLAYBACK Hardware Devices **** ALSA ...
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#78alsa sample rate跟蹤<4> - 开发者知识库
snd_pcm_open 中將snd_pcm_t指針的地址直接傳給了函數snd_pcm_open_noupdate： return snd_pcm_open_noupdate(pcmp, snd_config, name, stream, mode, 0);.
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#792010-10-05 03:01:32 ALSA snd_pcm_open error - Documents
2010-10-05 03:01:32 ALSA snd_pcm_open error Chandrashekhar Lavania (INDIA) Message: 94179 Hi, I am creating a simple test code to read ...
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#80查找我可以用ALSA播放PCM的所有設備 - 優文庫
我使用ALSA播放PCM樣本。我打開這個功能的PCM流： int snd_pcm_open(snd_pcm_t** pcmp, const char* name, snd_pcm_stream_t stream, int mode); 我目前使用「默認」 ...
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#81使用ALSA库进行音频捕获-snd_pcm_open =>没有这样的文件 ...
使用ALSA库进行音频捕获-snd_pcm_open =>没有这样的文件或目录. 问题描述 投票：8回答：2. 我正在尝试使用ALSA库在SoC上实现音频捕获。我已经将 libasound.so.2.0.0 和 ...
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#82Linux ALSA音效卡驅動之三：PCM裝置的建立- ITW01
2) snd_pcm_open(struct file *file,struct snd_pcm *pcm, int stream)->. 3) static intsnd_pcm_open_file(struct file *file, struct snd_pcm *pcm, ...
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#83使用ALSA库进行音频捕获- snd_pcm_open =＆gt;没有相应的 ...
使用ALSA库进行音频捕获- snd_pcm_open =＆gt;没有相应的文件和目录. 时间：2015-10-13 17:07:17. 标签： c++ audio capture alsa. 我尝试使用ALSA库在SoC上实现音频 ...
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#842014年 2月 12日 - コグノスケ
snd_pcm_open : サウンドカードを開く。 snd_pcm_set_params: どのような音を鳴らすか決める。 snd_pcm_writei: 音のデータをサウンドカードに書き込む ...
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#85Linux高级程序设计（第三版） - Google 圖書結果
(1)snd_pcm_open打开默认(“default”)的PCM设备并设访问模式为PLAYBACK。这个回一个句柄,这个句柄保存在一个中。该句柄在随后的中用。其他一样,这个回一个整。
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#86ALSAの作法とか - gununuの日記
自分で試してみた限りのことを書きます。snd_pcm_openの引数に"hw:0,0"を渡す例が多くみられるがこれはデバイスを独占してしまうためお行儀がよろしく ...
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#87Game Audio Programming 2: Principles and Practices
buffer_ ( float * ) malloc ( sizeof ( float ) * channels * frames ) ; snd_pcm_open ( & handle_ , " default " , SND_PCM_STREAM_PLAYBACK , SND_PCM_NONBLOCK ...
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#88Multimedia and Signal Processing: Second International ...
A typical audio capturing program [9][10] implemented by calling API functions in libasound is regularly as follows: (1) Open audio device: snd_pcm_open(); ...
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#89Internet of Things Security: Principles and Practice
... corresponding error code rc = snd_pcm_open(&handle, "hw:0,0", SND_PCM_STREAM_PLAYBACK, 0); //Assign a hardware parameter 90 3 Basic Knowledge of Firmware.
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#90Programming Linux Games - 第 190 頁 - Google 圖書結果
alsa_pcm = NULL; for (alsa_device = 0; alsa_device < alsa_hw_info.pcmdevs; alsa_device++) { if (snd_pcm_open(&alsa_pcm,alsa_card, alsa_device ...
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#91ざっくりとALSAとPulseAudioの関係(の続きのようなもの)
main'2 から snd_pcm_open が呼び出されていることがわかる。 コールグラフ中の関数をダブルクリックすると、注目する関数を切り替えることができる。
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#92使用ALSA 库的音频捕获- snd_pcm_open => 没有这样的文件或 ...
c++ - 使用ALSA 库的音频捕获- snd_pcm_open => 没有这样的文件或目录-最牛程序员. 我正在尝试使用ALSA 库在SoC 上实现音频捕获。 我有一个预编译 libasound.so.2.0.0 ...
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#93UbuntuでALSAライブラリを使って音のプログラミング
nBlockAlign); if(buffer == NULL) { printf("malloc error¥n"); goto End; } /* 再生用PCMストリームを開く */ ret = snd_pcm_open(&hndl, device, ...
snd_pcm_open 在 コバにゃんチャンネル Youtube 的精選貼文
snd_pcm_open 在 大象中醫 Youtube 的最佳貼文
snd_pcm_open 在 大象中醫 Youtube 的精選貼文