172 lines
6.0 KiB
C
172 lines
6.0 KiB
C
|
/*
|
|||
|
|
* Copyright (c) 2019-2025 Allwinner Technology Co., Ltd. ALL rights reserved.
|
|||
|
|
*
|
|||
|
|
* Allwinner is a trademark of Allwinner Technology Co.,Ltd., registered in
|
|||
|
|
* the the people's Republic of China and other countries.
|
|||
|
|
* All Allwinner Technology Co.,Ltd. trademarks are used with permission.
|
|||
|
|
*
|
|||
|
|
* DISCLAIMER
|
|||
|
|
* THIRD PARTY LICENCES MAY BE REQUIRED TO IMPLEMENT THE SOLUTION/PRODUCT.
|
|||
|
|
* IF YOU NEED TO INTEGRATE THIRD PARTY’S TECHNOLOGY (SONY, DTS, DOLBY, AVS OR MPEGLA, ETC.)
|
|||
|
|
* IN ALLWINNERS’SDK OR PRODUCTS, YOU SHALL BE SOLELY RESPONSIBLE TO OBTAIN
|
|||
|
|
* ALL APPROPRIATELY REQUIRED THIRD PARTY LICENCES.
|
|||
|
|
* ALLWINNER SHALL HAVE NO WARRANTY, INDEMNITY OR OTHER OBLIGATIONS WITH RESPECT TO MATTERS
|
|||
|
|
* COVERED UNDER ANY REQUIRED THIRD PARTY LICENSE.
|
|||
|
|
* YOU ARE SOLELY RESPONSIBLE FOR YOUR USAGE OF THIRD PARTY’S TECHNOLOGY.
|
|||
|
|
*
|
|||
|
|
*
|
|||
|
|
* THIS SOFTWARE IS PROVIDED BY ALLWINNER"AS IS" AND TO THE MAXIMUM EXTENT
|
|||
|
|
* PERMITTED BY LAW, ALLWINNER EXPRESSLY DISCLAIMS ALL WARRANTIES OF ANY KIND,
|
|||
|
|
* WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING WITHOUT LIMITATION REGARDING
|
|||
|
|
* THE TITLE, NON-INFRINGEMENT, ACCURACY, CONDITION, COMPLETENESS, PERFORMANCE
|
|||
|
|
* OR MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|||
|
|
* IN NO EVENT SHALL ALLWINNER BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|||
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|||
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|||
|
|
* LOSS OF USE, DATA, OR PROFITS, OR BUSINESS INTERRUPTION)
|
|||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|||
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|||
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|||
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|||
|
|
*/
|
|||
|
|
|
|||
|
|
#ifndef __AW_ALSA_PCM_EXTPLUG_H
|
|||
|
|
#define __AW_ALSA_PCM_EXTPLUG_H
|
|||
|
|
|
|||
|
|
#include <aw-alsa-lib/pcm.h>
|
|||
|
|
|
|||
|
|
/** hw constraints for extplug */
|
|||
|
|
enum {
|
|||
|
|
SND_PCM_EXTPLUG_HW_FORMAT, /**< format */
|
|||
|
|
SND_PCM_EXTPLUG_HW_CHANNELS, /**< channels */
|
|||
|
|
SND_PCM_EXTPLUG_HW_PARAMS /**< max number of hw constraints */
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
/** Handle of external filter plugin */
|
|||
|
|
typedef struct snd_pcm_extplug snd_pcm_extplug_t;
|
|||
|
|
/** Callback table of extplug */
|
|||
|
|
typedef struct snd_pcm_extplug_callback snd_pcm_extplug_callback_t;
|
|||
|
|
|
|||
|
|
/** Handle of extplug */
|
|||
|
|
struct snd_pcm_extplug {
|
|||
|
|
/**
|
|||
|
|
* name of this plugin; must be filled before calling #snd_pcm_extplug_create()
|
|||
|
|
*/
|
|||
|
|
const char *name;
|
|||
|
|
/**
|
|||
|
|
* callbacks of this plugin; must be filled before calling #snd_pcm_extplug_create()
|
|||
|
|
*/
|
|||
|
|
const snd_pcm_extplug_callback_t *callback;
|
|||
|
|
/**
|
|||
|
|
* private data, which can be used freely in the driver callbacks
|
|||
|
|
*/
|
|||
|
|
void *private_data;
|
|||
|
|
/**
|
|||
|
|
* PCM handle filled by #snd_pcm_extplug_create()
|
|||
|
|
*/
|
|||
|
|
snd_pcm_t *pcm;
|
|||
|
|
/**
|
|||
|
|
* stream direction; read-only status
|
|||
|
|
*/
|
|||
|
|
snd_pcm_stream_t stream;
|
|||
|
|
/**
|
|||
|
|
* format hw parameter; filled after hw_params is caled
|
|||
|
|
*/
|
|||
|
|
snd_pcm_format_t format;
|
|||
|
|
/**
|
|||
|
|
* subformat hw parameter; filled after hw_params is caled
|
|||
|
|
*/
|
|||
|
|
//snd_pcm_subformat_t subformat;
|
|||
|
|
/**
|
|||
|
|
* channels hw parameter; filled after hw_params is caled
|
|||
|
|
*/
|
|||
|
|
unsigned int channels;
|
|||
|
|
/**
|
|||
|
|
* rate hw parameter; filled after hw_params is caled
|
|||
|
|
*/
|
|||
|
|
unsigned int rate;
|
|||
|
|
/**
|
|||
|
|
* slave_format hw parameter; filled after hw_params is caled
|
|||
|
|
*/
|
|||
|
|
snd_pcm_format_t slave_format;
|
|||
|
|
/**
|
|||
|
|
* slave_channels hw parameter; filled after hw_params is caled
|
|||
|
|
*/
|
|||
|
|
unsigned int slave_channels;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
/** Callback table of extplug */
|
|||
|
|
struct snd_pcm_extplug_callback {
|
|||
|
|
/**
|
|||
|
|
* transfer between source and destination; this is a required callback
|
|||
|
|
*/
|
|||
|
|
snd_pcm_sframes_t (*transfer)(snd_pcm_extplug_t *ext,
|
|||
|
|
const snd_pcm_channel_area_t *dst_areas,
|
|||
|
|
snd_pcm_uframes_t dst_offset,
|
|||
|
|
const snd_pcm_channel_area_t *src_areas,
|
|||
|
|
snd_pcm_uframes_t src_offset,
|
|||
|
|
snd_pcm_uframes_t size);
|
|||
|
|
/**
|
|||
|
|
* close the PCM; optional
|
|||
|
|
*/
|
|||
|
|
int (*close)(snd_pcm_extplug_t *ext);
|
|||
|
|
/**
|
|||
|
|
* hw_params; optional
|
|||
|
|
*/
|
|||
|
|
int (*hw_params)(snd_pcm_extplug_t *ext, snd_pcm_hw_params_t *params);
|
|||
|
|
/**
|
|||
|
|
* hw_free; optional
|
|||
|
|
*/
|
|||
|
|
int (*hw_free)(snd_pcm_extplug_t *ext);
|
|||
|
|
/**
|
|||
|
|
* dump; optional
|
|||
|
|
*/
|
|||
|
|
void (*dump)(snd_pcm_extplug_t *ext);
|
|||
|
|
/**
|
|||
|
|
* init; optional initialization called at prepare or reset
|
|||
|
|
*/
|
|||
|
|
int (*init)(snd_pcm_extplug_t *ext);
|
|||
|
|
/**
|
|||
|
|
* query the channel maps; optional; since v1.0.2
|
|||
|
|
*/
|
|||
|
|
//snd_pcm_chmap_query_t **(*query_chmaps)(snd_pcm_extplug_t *ext);
|
|||
|
|
/**
|
|||
|
|
* get the channel map; optional; since v1.0.2
|
|||
|
|
*/
|
|||
|
|
//snd_pcm_chmap_t *(*get_chmap)(snd_pcm_extplug_t *ext);
|
|||
|
|
/**
|
|||
|
|
* set the channel map; optional; since v1.0.2
|
|||
|
|
*/
|
|||
|
|
//int (*set_chmap)(snd_pcm_extplug_t *ext, const snd_pcm_chmap_t *map);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
int snd_pcm_extplug_create(snd_pcm_extplug_t *extplug, const char *name,
|
|||
|
|
const char *spcm_name, snd_pcm_stream_t stream, int mode);
|
|||
|
|
|
|||
|
|
/* clear hw_parameter setting */
|
|||
|
|
void snd_pcm_extplug_params_reset(snd_pcm_extplug_t *ext);
|
|||
|
|
|
|||
|
|
/* hw_parameter setting */
|
|||
|
|
int snd_pcm_extplug_set_param_list(snd_pcm_extplug_t *extplug, int type, unsigned int num_list, const unsigned int *list);
|
|||
|
|
int snd_pcm_extplug_set_param_minmax(snd_pcm_extplug_t *extplug, int type, unsigned int min, unsigned int max);
|
|||
|
|
int snd_pcm_extplug_set_slave_param_list(snd_pcm_extplug_t *extplug, int type, unsigned int num_list, const unsigned int *list);
|
|||
|
|
int snd_pcm_extplug_set_slave_param_minmax(snd_pcm_extplug_t *extplug, int type, unsigned int min, unsigned int max);
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* set the parameter constraint with a single value
|
|||
|
|
*/
|
|||
|
|
static __inline__ int snd_pcm_extplug_set_param(snd_pcm_extplug_t *extplug, int type, unsigned int val)
|
|||
|
|
{
|
|||
|
|
return snd_pcm_extplug_set_param_list(extplug, type, 1, &val);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* set the parameter constraint for slave PCM with a single value
|
|||
|
|
*/
|
|||
|
|
static __inline__ int snd_pcm_extplug_set_slave_param(snd_pcm_extplug_t *extplug, int type, unsigned int val)
|
|||
|
|
{
|
|||
|
|
return snd_pcm_extplug_set_slave_param_list(extplug, type, 1, &val);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
#endif /* __AW_ALSA_PCM_EXTPLUG_H */
|