基于RTP的linux实时语音通信系统的设计与实现(6)

嘉应学院毕业论文(设计)

if ((result = snd_mixer_load(mixer)) < 0) { }

for (elem = snd_mixer_first_elem(mixer); elem; elem = snd_mixer_elem_next(elem))

{

if (snd_mixer_elem_get_type(elem) == SND_MIXER_ELEM_SIMPLE && std::cerr << \snd_mixer_close(mixer); mixer = NULL;

snd_mixer_selem_is_active(elem))

{

snd_mixer_selem_get_playback_volume_range(elem, &minVolume,

&maxVolume);

snd_mixer_selem_get_capture_volume_range(elem, &minVolume,

snd_mixer_selem_set_playback_switch_all(elem, 1);

snd_mixer_selem_set_playback_volume_all(elem, maxVolume);

&maxVolume);

} }

}

snd_mixer_selem_set_capture_switch_all(elem, 1);

snd_mixer_selem_set_capture_volume_all(elem, maxVolume);

22

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