sample_size = format.nSamplesPerSec;#else#ifdefHAVE_ALSA_ASOUNDLIB_Hhandle =NULL;if(snd_pcm_open(&handle,"default", SND_PCM_STREAM_PLAYBACK,0) >=0) {// Initialize PCM sound stuff...snd_pcm_hw_params_t*params;snd_pcm_hw_params_alloca(¶ms); snd_pcm_hw_params_any(handle, params...
示例1: snd_pcm_hw_params_alloca ▲点赞 6▼ voidPCMThread::init() {snd_pcm_t* pcm_handle;snd_pcm_hw_params_t* hwparams;snd_pcm_uframes_tbuffersize_return;unsignedinttmp;interr;std::unique_ptr<PCMHandle> spPCMHandle {newPCMHandle {spSettings_->pcmName_, SND_PCM_STREAM_CAPTURE}}; ...
同时有些是用到其他资源，jvm也不会进行回收，类似Io流中的FileInputStream使用到了硬盘资源，垃圾回收器...
打开PCM设备 设置硬件参数 读/写数据 PCM播放示例代码 PCM录音示例代码 使用异步方法 snd_async_add_pcm_handler()函数 snd_pcm_avail_update()函数 PCM异步播放示例 PCM异步录音示例 使用poll()函数 使用poll I/O多路复用实现读写 PCM播放示例 PCM录音示例 PCM设备状态 PCM播放——加入状态控制 snd_pcm_readi/...
If you set the params - snd_pcm_hw_params(), the driver may restrict the future configuration space depending on this settings (for example to lock the playback and capture rates to identical value). Do you see this behaviour without snd_pcm_hw_params() in the chain?
在调用snd_pcm_writei之前,确保已经正确地初始化和配置了音频设备。这通常包括打开设备、设置参数(如采样率、格式、通道数等)以及准备设备: c snd_pcm_t *pcm; snd_pcm_open(&pcm, "default", SND_PCM_STREAM_PLAYBACK, 0); snd_pcm_hw_params_t *params; snd_pcm_hw_params_alloca(¶ms...
在每次snd_xxx函数调用之前添加日志记录后,发现应用程序在调用snd_pcm_hw_params_any之后停止,这意味着它在snd_pcm_open和snd_pcm_hw_params_alloca收集核心转储文件并使用gdb "bt full“进行检查后,结果为: root@linaro-ubuntu-desktop:/test# gdb .This GDB was configured as "arm-linux-gnueabi".() ...
wav_params(pcm_container *sound, wav_format *wav) { snd_pcm_hw_params_t *hwparams; snd_pcm_hw_params_alloca(&hwparams); snd_pcm_hw_params_any(sound->handle, hwparams); snd_pcm_hw_params_set_access(sound->handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED); snd_pcm_format_t pcm_...
示例2: set_hwparams ▲点赞 7▼ staticintset_hwparams(snd_pcm_t*handle,snd_pcm_hw_params_t*params,snd_pcm_access_taccess){interr, dir;/* choose all parameters */err = snd_pcm_hw_params_any(handle,params);if(err <0) {printf("Access type not available for playback: %s\n", s...
InterlockedExchange((LONG*)&wwo->dwPlayedTotal, wwo->dwWrittenTotal - snd_pcm_frames_to_bytes(wwo->pcm, delay));returnTRUE; } 开发者ID:mikekap,项目名称:wine,代码行数:33,代码来源:waveout.c 示例2: alsa_log ▲点赞 7▼ staticvoidalsa_log(snd_pcm_hw_params_t* hw_params,snd_pcm_sw_...