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param: add more generic port params

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Remove port properties and replace them with port params. Move the
params from the PortInfo to enum_params.
Use the Param ranges to specify possible sizes etc.
This commit is contained in:
Wim Taymans 2017-05-22 13:06:18 +02:00
parent 12effccb06
commit d1a6d6e03f
37 changed files with 1044 additions and 755 deletions
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81
spa/include/spa/param.h Normal file
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/* Simple Plugin API
* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
*
* 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 library 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SPA_PARAM_H__
#define __SPA_PARAM_H__
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _SpaParam SpaParam;
#include <spa/defs.h>
#include <spa/pod-utils.h>
#define SPA_TYPE__Param SPA_TYPE_POD_OBJECT_BASE "Param"
#define SPA_TYPE_PARAM_BASE SPA_TYPE__Param ":"
typedef struct {
SpaPODObjectBody body;
/* SpaPODProp follow */
} SpaParamBody;
struct _SpaParam {
SpaPOD pod;
SpaParamBody body;
};
static inline uint32_t
spa_param_query (const SpaParam *param, uint32_t key, ...)
{
uint32_t count;
va_list args;
va_start (args, key);
count = spa_pod_contents_queryv (&param->pod, sizeof (SpaParam), key, args);
va_end (args);
return count;
}
#define SPA_PARAM_BODY_FOREACH(body, size, iter) \
for ((iter) = SPA_MEMBER ((body), sizeof (SpaParamBody), SpaPODProp); \
(iter) < SPA_MEMBER ((body), (size), SpaPODProp); \
(iter) = SPA_MEMBER ((iter), SPA_ROUND_UP_N (SPA_POD_SIZE (iter), 8), SpaPODProp))
#define SPA_PARAM_FOREACH(param, iter) \
SPA_PARAM_BODY_FOREACH(&param->body, SPA_POD_BODY_SIZE(param), iter)
static inline SpaResult
spa_param_fixate (SpaParam *param)
{
SpaPODProp *prop;
SPA_PARAM_FOREACH (param, prop)
prop->body.flags &= ~SPA_POD_PROP_FLAG_UNSET;
return SPA_RESULT_OK;
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __SPA_PARAM_H__ */