SND_PCM_ACCESS_RW_INTERLEAVED);/* Signed 16-bit little-endian format */snd_pcm_hw_params_set_format(handle, params,SND_PCM_FORMAT_U8);/* Two channels (stereo) */snd_pcm_hw_params_set_channels(handle, params,1);/* 44100 bits/second sampling rate (CD quality) */val =44100; snd_pcm...
err = snd_pcm_hw_params_set_format(pcm->pcm, pcm->hw_params, fmt);if(err) PERROR_GOTO(snd_strerror(err), on_error_2); err = snd_pcm_hw_params_set_rate (pcm->pcm, pcm->hw_params, desc->fsampl,0);if(err) PERROR_GOTO(snd_strerror(err), on_error_2); pcm->nchan = desc...
libswresample 3.1.100 ffmpeg version: 4.0.2 [indy@localhost ~]$ rpm -q mpv | mpv-0.29.0-1.fc28.armv7hl [indy@localhost ~]$ aplay --list-devices *** List of PLAYBACK Hardware Devices *** card 0: PAZ00 [Compal PAZ00], device 0: ALC5632 PCM alc5632-hifi-0 [] Sub...
示例3: set_hwparams ▲点赞 5▼ 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", snd_...
r = snd_pcm_hw_params_set_rate_near(m_audio_handle, hw_params, &rate,0); r = snd_pcm_hw_params_set_channels(m_audio_handle, hw_params,2); r = snd_pcm_hw_params(m_audio_handle, hw_params); snd_pcm_hw_params_free(hw_params); ...
}if((err = set_hwparams(handle, hwparams,SND_PCM_ACCESS_RW_INTERLEAVED, rate, channels, period, nperiods )) <0) {printf("Setting of hwparams failed: %s\n", snd_strerror(err));returnNULL; }if((err = set_swparams(handle, swparams, period)) <0) {printf("Setting of swparams fail...
}/* set the stream rate */err = snd_pcm_hw_params_set_rate_near(handle, params, rate,0);if(err <0) {printf("Rate %iHz not available for playback: %s\n", rate, snd_strerror(err));returnerr; }if(err != rate) {printf("Rate doesn't match (requested %iHz, get %iHz)\n...
SND_PCM_ACCESS_RW_INTERLEAVED);if(err <0)gotoerror; ad->writei = snd_pcm_writei; } err = alsa_output_setup_format(ad->pcm, hwparams, audio_format);if(err <0) { g_set_error(error, alsa_output_quark(), err,"ALSA device \"%s\" does not support format %s: %s", ...
perror("\nsnd_pcm_hw_params_set_rate_near:");exit(1); } rc = snd_pcm_hw_params(handle, params);if(rc <0) { perror("\nsnd_pcm_hw_params: ");exit(1); }return0; } 开发者ID:SilunWang,项目名称:xv6,代码行数:61,代码来源:mp3player.c ...
staticvoidCheckXRUN(IDsDriverBufferImpl* This){snd_pcm_state_tstate = snd_pcm_state(This->pcm);snd_pcm_sframes_tdelay;interr; snd_pcm_hwsync(This->pcm);snd_pcm_delay(This->pcm, &delay);if( state == SND_PCM_STATE_XRUN )