- pcm:用于指定音频设备句柄,已打开的PCM设备。 - params:用于指定音频设备的软件参数句柄。 - val:用于指定起始阈值的值,单位为frame。 在调用该函数之前,需要先通过snd_pcm_open函数打开音频设备,并通过snd_pcm_sw_params_malloc函数分配软件参数句柄,然后通过snd_pcm_sw_params_current函数将当前参数配置装载到参...
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...
snd_pcm_hw_params_t *pcm_params; // 分配 PCM 参数结构 err = snd_pcm_hw_params_malloc(&pcm_params); // 检查参数结构分配是否成功 if (err < 0) { fprintf(stderr, "Error allocating PCM parameters: %s\n", snd_strerror(err)); exit(EXIT_FAILURE); } ``` ### 步骤 3:初始化 PCM ...
snd_pcm_hw_params_malloc( ) 在栈中分配 snd_pcm_hw_params_t 结构的空间,然后使用 snd_pcm_hw_params_any( ) 函数用声卡的全配置空间参数初始化已经分配的 snd_pcm_hw_params_t 结构。snd_pcm_hw_params_set_access ( ) 设置访问类型,常用访问类型的宏定义有: SND_PCM_ACCESS_RW_INTERLEAVED 交错访问。
snd_pcm_sw_params_set_avail_min(playback_handle, sw_params, BUFSIZE);snd_pcm_sw_params(playback_handle, sw_params);return(playback_handle); } 开发者ID:babycool111,项目名称:Learn,代码行数:25,代码来源:miniFMsynth.c 示例2: snd_pcm_ioctl_sw_params_compat ...
示例1: snd_pcm_hw_params_malloc ▲点赞 7▼ boolPokeLaunchApplication::sound() {#ifJUCE_LINUXinterr;intfreq =44100, channels =2;snd_pcm_hw_params_t*hw_params;snd_pcm_sw_params_t*sw_params; snd_pcm_hw_params_malloc( &hw_params ); ...
我们进行手动的编写close()方法进行关闭,然而,每次这些写会造成代码冗余不优雅,JDK中对于释放资源有...
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_...
* Set up the snd_pcm_t object which was opened by the caller. Set up * the configured settings and the audio format. */staticboolalsa_setup(struct alsa_data *ad, struct audio_format *audio_format, GError **error){snd_pcm_hw_params_t*hwparams;snd_pcm_sw_params_t*swparams;unsigned...
示例4: set_params ▲点赞 2▼ staticvoidset_params(void){ hwparams.format=SND_PCM_FORMAT_S16_LE; hwparams.channels=2; hwparams.rate=44100;snd_pcm_hw_params_t*params;snd_pcm_sw_params_t*swparams; snd_pcm_hw_params_alloca(¶ms); ...