voidplayback(){interr;unsignedinti;snd_pcm_t*handle;// for (i = 0; i < sizeof(buffer); i++)// buffer[i] = random() & 0xff;if((err =snd_pcm_open(&handle,"default", SND_PCM_STREAM_PLAYBACK,0)) <0) {printf("Playback open error: %s\n", snd_strerror(err));exit(EXIT_F...
_snd_pcm_empty_open和snd_pcm_open_named_slave ==> snd_pcm_open_conf(pcmp, name, root, conf, stream, mode); ==> open_func = snd_dlobj_cache_lookup(open_name);将获得lib库中_snd_pcm_empty_open函数 所以open_func将等于_snd_pcm_empty_open _snd_pcm_empty_open _snd_pcm_asym_open _...
1，首先需要确认你的声卡驱动是否正常，2，确认函数参数是否正确 3，确认构建配置树是否配置成功 由于提主提供的资料有限，没法提供更多建议！
9.XDemuxThread的Open接口完成12分钟10.XDemuxThread音视频播放测试完成(源码)9分钟10.XPlay2.0 播放器项目实战开发三(10节)1.音视频同步策略分析并计算当前音频播放pts18分钟2.播放rtmp香港卫视直播解决视频显示行对齐10分钟3.通过QT界面选择打开视频文件(源码)15分钟4.抽象出XDecodeThread类添加Push和Pop函数20分钟...
snd_pcm_open 函数原型如下 int snd_pcm_open(snd_pcm_t **pcmp, const char *name, snd_pcm_stream_t stream, int mode) { snd_config_t *top; int err; assert(pcmp && name); if (_snd_is_ucm_device(name)) { name = uc_mgr_alibcfg_by_device(&top, name); if (name == NULL) ...