params->audio_sampling_freq = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_ENCODING:
params->audio_encoding = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_L2_BITRATE:
params->audio_sampling_freq = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_ENCODING:
params->audio_encoding = ctrl->value;
break;
case V4L2_CID_MPEG_AUDIO_L2_BITRATE: