diff options
Diffstat (limited to 'TamTamMini.activity/common/Util/Clooper/audio.cpp')
| -rw-r--r-- | TamTamMini.activity/common/Util/Clooper/audio.cpp | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/TamTamMini.activity/common/Util/Clooper/audio.cpp b/TamTamMini.activity/common/Util/Clooper/audio.cpp deleted file mode 100644 index 6f5a271..0000000 --- a/TamTamMini.activity/common/Util/Clooper/audio.cpp +++ /dev/null @@ -1,237 +0,0 @@ -#ifndef AUDIO_HXX -#define AUDIO_HXX - -/* - * Latency test program - * - * Author: Jaroslav Kysela <perex@suse.cz> - * - * This small demo program can be used for measuring latency between - * capture and playback. This latency is measured from driver (diff when - * playback and capture was started). Scheduler is set to SCHED_RR. - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sched.h> -#include <errno.h> -#include <getopt.h> -#include <sys/time.h> -#include <math.h> - -#include <string> -#include <alsa/asoundlib.h> - -#define ERROR_HERE ll->printf("ERROR_HERE: %s %i\n", __FILE__, __LINE__) - -struct SystemStuff -{ - log_t * ll; - - snd_pcm_t *phandle; - snd_pcm_uframes_t period_size; - unsigned int rate; - const snd_pcm_format_t sample_format; - SystemStuff(log_t * ll) : ll(ll), phandle(NULL), period_size(0), rate(0), sample_format(SND_PCM_FORMAT_S16) - { - } - ~SystemStuff() - { - if (phandle) close(0); - } - - void setscheduler(void) - { - struct sched_param sched_param; - - if (sched_getparam(0, &sched_param) < 0) { - ll->printf( "Scheduler getparam failed...\n"); - return; - } - sched_param.sched_priority = sched_get_priority_max(SCHED_RR); - if (!sched_setscheduler(0, SCHED_RR, &sched_param)) { - ll->printf( "Scheduler set to Round Robin with priority %i...\n", sched_param.sched_priority); - return; - } - ll->printf( "!!!Scheduler set to Round Robin with priority %i FAILED!!!\n", sched_param.sched_priority); - } - - int open(unsigned int rate0, int upsample_max, snd_pcm_uframes_t period0, unsigned int p_per_buff) - { - snd_pcm_hw_params_t *hw; - - if (phandle) - { - ll->printf( "ERROR: open called twice! First close the sound device\n"); - return -1; - } - - if ( 0 > snd_pcm_open(&phandle, "default", SND_PCM_STREAM_PLAYBACK, 0)) { ERROR_HERE; return -1; } - if ( 0 > snd_pcm_hw_params_malloc(&hw)) { ERROR_HERE; snd_pcm_close(phandle); phandle = NULL; return -1; } - - //now we can be a bit flexible with the buffer size and the sample-rate... - - int upsample; - for (upsample = 1; upsample < upsample_max; ++upsample) - { - rate = rate0 * upsample; - - if ( 0 > snd_pcm_hw_params_any(phandle, hw)) { ERROR_HERE; goto open_error;} - - //first do the compulsory steps... interleaved float, 2 channel - if ( 0 > snd_pcm_hw_params_set_rate_resample(phandle, hw, 0)) { ERROR_HERE; goto open_error;} - if ( 0 > snd_pcm_hw_params_test_access(phandle, hw, SND_PCM_ACCESS_RW_INTERLEAVED)){ ERROR_HERE; goto open_error;} - if ( 0 > snd_pcm_hw_params_set_access(phandle, hw, SND_PCM_ACCESS_RW_INTERLEAVED)){ ERROR_HERE; goto open_error;} - if ( 0 > snd_pcm_hw_params_test_format(phandle, hw, sample_format)) { ERROR_HERE; goto open_error;} - if ( 0 > snd_pcm_hw_params_set_format(phandle, hw, sample_format)) { ERROR_HERE; goto open_error;} - if ( 0 > snd_pcm_hw_params_set_channels(phandle, hw, 2)) { ERROR_HERE; goto open_error;} - - if ( snd_pcm_hw_params_set_rate_near(phandle, hw, &rate, 0)) - { - ll->printf("test_rate failed( %i\n", rate); - continue; - } - else - { - ll->printf(1, "success! setting rate : %i\n", rate); - - snd_pcm_uframes_t minb=0, maxb= 0; - int mind=0, maxd=0; - snd_pcm_hw_params_get_period_size_min(hw, &minb,&mind); - snd_pcm_hw_params_get_period_size_max(hw, &maxb,&maxd); - ll->printf(2, "FYI: period size range is [%li/%i,%li/%i]\n", minb,mind, maxb, maxd); - - if ((mind != 0) || (maxd == 0)) - { - ll->printf(2, "watch out, mind and maxd non-zero... you didn't set rate_resample to 0 did you...\n"); - } - - if (period0 < minb) - { - ll->printf(1, "requested period size (%li) < min (%li), adjusting to min\n", period_size, minb); - period_size = minb; - } - else if (period0 > maxb) - { - ll->printf(2, "requested period size (%li) < max (%li), adjusting to min\n", period_size, maxb); - period_size = maxb; - } - else - { - period_size = period0; - } - - ll->printf(1, "testing period size : %li\n", period_size); - if ( 0 > snd_pcm_hw_params_test_period_size(phandle, hw, period_size, 0)){ ERROR_HERE; goto open_error;} - - - ll->printf(1, "setting period size : %li\n", period_size); - if ( 0 > snd_pcm_hw_params_set_period_size_near(phandle, hw, &period_size, 0)){ ERROR_HERE; goto open_error;} - - ll->printf(1, "setting buffer size : %i * %li = %li\n", p_per_buff, period_size, p_per_buff * period_size); - snd_pcm_uframes_t buff_size = p_per_buff * period_size; - if ( 0 > snd_pcm_hw_params_set_buffer_size_near(phandle, hw, &buff_size)) { ERROR_HERE; goto open_error;} - - break; - } - } - - if (upsample_max == upsample) { ERROR_HERE; goto open_error; } - - if (0 > snd_pcm_hw_params(phandle, hw)) { ERROR_HERE; goto open_error; } - - snd_pcm_hw_params_free (hw); - return 0; - -open_error: - snd_pcm_hw_params_free (hw); - snd_pcm_close(phandle); - phandle = NULL; - return -1; - } - void close(int drain = 0) - { - if (!phandle) - { - ll->printf(0, "WARNING: attempt to close already-closed pcm\n"); - return; - } - ll->printf(1, "INFO: closing phandle device\n"); - if (drain) snd_pcm_drain(phandle); - snd_pcm_close(phandle); - phandle = NULL; - } - void prepare() - { - if (!phandle) - { - ll->printf(0, "ERROR: attempt to prepare a closed pcm\n"); - return; - } - if (0 > snd_pcm_prepare(phandle)) { ERROR_HERE; } - } - int writebuf(snd_pcm_uframes_t frame_count, short int * frame_data) - { - if (!phandle) - { - ll->printf(0, "ERROR: attempt to write a closed phandle\n"); - return -1; - } - int err = 0; - while (frame_count > 0) { - err = snd_pcm_writei (phandle, frame_data, frame_count ); - if (err == (signed)frame_count) return 0; //success - if (err == -EAGAIN) - continue; - if (err < 0) - break; - frame_data += err * 4; - frame_count -= err; - } - - if (err >= 0) - { - ll->printf(0, "madness on line %s:%i\n", __FILE__, __LINE__); - return -1; - } - - const char * msg = NULL; - snd_pcm_state_t state = snd_pcm_state(phandle); - switch (state) - { - case SND_PCM_STATE_OPEN: msg = "open"; break; - case SND_PCM_STATE_SETUP: msg = "setup"; break; - case SND_PCM_STATE_PREPARED:msg = "prepared"; break; - case SND_PCM_STATE_RUNNING: msg = "running"; break; - case SND_PCM_STATE_XRUN: msg = "xrun"; break; - case SND_PCM_STATE_DRAINING: msg = "draining"; break; - case SND_PCM_STATE_PAUSED: msg = "paused"; break; - case SND_PCM_STATE_SUSPENDED: msg = "suspended"; break; - case SND_PCM_STATE_DISCONNECTED: msg = "disconnected"; break; - } - ll->printf(1, "WARNING: write failed (%s)\tstate = %s\ttime=%lf\n", snd_strerror (err), msg, pytime(NULL)); - if (0 > snd_pcm_recover(phandle, err, 0)) { ERROR_HERE; return err;} - if (0 > snd_pcm_prepare(phandle)) { ERROR_HERE; return err;} - return 1; //warning - } -}; -#undef ERROR_HERE - -#endif |