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Renamed ERR to SNDERR. Added s16 pseudo meter scope. Fixed plug hw_refine/params

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This commit is contained in:
Abramo Bagnara 2001-03-04 20:39:02 +00:00
parent 84732560a9
commit bbaeb29a74
26 changed files with 503 additions and 313 deletions
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63
src/pcm/pcm_meter.h Normal file
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/*
* PCM - Meter plugin
* Copyright (c) 2001 by Abramo Bagnara <abramo@alsa-project.org>
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <pthread.h>
#include <asm/atomic.h>
#include "list.h"
#include "pcm_local.h"
#include "pcm_plugin.h"
typedef struct _snd_pcm_meter_scope snd_pcm_meter_scope_t;
struct _snd_pcm_meter_scope {
snd_pcm_t *pcm;
int active;
char *name;
int (*open)(snd_pcm_meter_scope_t *scope);
void (*start)(snd_pcm_meter_scope_t *scope);
void (*stop)(snd_pcm_meter_scope_t *scope);
void (*update)(snd_pcm_meter_scope_t *scope);
void (*reset)(snd_pcm_meter_scope_t *scope);
void (*close)(snd_pcm_meter_scope_t *scope);
void *private_data;
struct list_head list;
};
typedef struct _snd_pcm_meter {
snd_pcm_t *slave;
int close_slave;
snd_pcm_uframes_t rptr;
snd_pcm_uframes_t buf_size;
snd_pcm_channel_area_t *buf_areas;
snd_pcm_uframes_t now;
unsigned char *buf;
struct list_head scopes;
int closed;
int running;
atomic_t reset;
pthread_t thread;
pthread_mutex_t update_mutex;
pthread_mutex_t running_mutex;
pthread_cond_t running_cond;
int16_t *buf16;
snd_pcm_channel_area_t *buf16_areas;
struct timespec delay;
} snd_pcm_meter_t;