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125 lines
4.1 KiB
C
125 lines
4.1 KiB
C
/*
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* libInstPatch
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* Copyright (C) 1999-2014 Element Green <element@elementsofsound.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; version 2.1
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* of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA or on the web at http://www.gnu.org.
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*/
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#ifndef __IPATCH_SAMPLE_STORE_H__
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#define __IPATCH_SAMPLE_STORE_H__
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/* forward type declarations */
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typedef struct _IpatchSampleStore IpatchSampleStore;
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typedef struct _IpatchSampleStoreClass IpatchSampleStoreClass;
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#include <stdarg.h>
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#include <glib.h>
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#include <glib-object.h>
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#include <libinstpatch/IpatchSample.h>
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#include <libinstpatch/IpatchItem.h>
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#include <libinstpatch/IpatchSampleTransform.h>
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#include <libinstpatch/sample.h>
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#define IPATCH_TYPE_SAMPLE_STORE (ipatch_sample_store_get_type ())
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#define IPATCH_SAMPLE_STORE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), IPATCH_TYPE_SAMPLE_STORE, \
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IpatchSampleStore))
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#define IPATCH_SAMPLE_STORE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), IPATCH_TYPE_SAMPLE_STORE, \
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IpatchSampleStoreClass))
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#define IPATCH_IS_SAMPLE_STORE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), IPATCH_TYPE_SAMPLE_STORE))
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#define IPATCH_IS_SAMPLE_STORE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), IPATCH_TYPE_SAMPLE_STORE))
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#define IPATCH_SAMPLE_STORE_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS ((obj), IPATCH_TYPE_SAMPLE_STORE, \
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IpatchSampleStoreClass))
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/* sample store base instance */
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struct _IpatchSampleStore
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{
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IpatchItem parent_instance;
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guint32 size; /* size of sample data (in samples) */
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guint32 rate; /* sample rate in hz */
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};
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/* sample store base class */
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struct _IpatchSampleStoreClass
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{
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IpatchItemClass parent_class;
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};
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/* IpatchSampleWidth | sign | endian | channels stored in flags field
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(9 bits) - see sample.h */
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/* flags bit shift value to sample format field */
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#define IPATCH_SAMPLE_STORE_FORMAT_SHIFT IPATCH_ITEM_UNUSED_FLAG_SHIFT
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/**
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* ipatch_sample_store_get_format:
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*
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* Macro for getting the sample format from a sample store. No lock is required
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* since format can only be set prior to the store being actively used.
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*
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* Returns: Sample format field. See #sample.
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*/
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#define ipatch_sample_store_get_format(store) \
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((ipatch_item_get_flags (store) >> IPATCH_SAMPLE_STORE_FORMAT_SHIFT) \
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& IPATCH_SAMPLE_FORMAT_MASK)
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/**
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* ipatch_sample_store_get_size:
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*
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* Macro for getting the sample size in frames of a sample store. No lock is required
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* since size can only be set prior to the store being actively used.
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*
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* Returns: Sample store size in frames.
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*/
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#define ipatch_sample_store_get_size(store) ((store)->size)
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/**
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* ipatch_sample_store_get_rate:
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*
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* Macro for getting the sample rate from a sample store. No lock is required
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* since rate can only be set prior to the store being actively used.
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*
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* Returns: Sample rate in HZ.
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*/
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#define ipatch_sample_store_get_rate(store) ((store)->rate)
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/**
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* ipatch_sample_store_get_size_bytes:
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*
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* Macro for getting the sample store data size in bytes. No lock is required
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* since format and size can only be set prior to the store being actively used.
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*
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* Returns: Sample store size in bytes.
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*/
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#define ipatch_sample_store_get_size_bytes(store) \
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(ipatch_sample_format_size (ipatch_sample_store_get_format (store)) * (store)->size)
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/* we reserve flags for format and 3 for expansion */
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#define IPATCH_SAMPLE_STORE_UNUSED_FLAG_SHIFT \
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(IPATCH_ITEM_UNUSED_FLAG_SHIFT + IPATCH_SAMPLE_FORMAT_BITCOUNT + 3)
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GType ipatch_sample_store_get_type(void);
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IpatchSampleStore *ipatch_sample_store_first(IpatchIter *iter);
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IpatchSampleStore *ipatch_sample_store_next(IpatchIter *iter);
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#endif
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