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82 lines
2.5 KiB
82 lines
2.5 KiB
/*
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The mediastreamer library aims at providing modular media processing and I/O
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for linphone, but also for any telephony application.
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Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef MSREAD_H
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#define MSREAD_H
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#include "msfilter.h"
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#include "mssync.h"
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/*this is the class that implements file reading source filter*/
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#define MSREAD_MAX_OUTPUTS 1 /* max output per filter*/
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#define MSREAD_DEF_GRAN 640 /* the default granularity*/
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typedef enum{
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MS_READ_STATE_STARTED,
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MS_READ_STATE_STOPPED,
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MS_READ_STATE_EOF
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}MSReadState;
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typedef struct _MSRead
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{
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/* the MSRead derivates from MSFilter, so the MSFilter object MUST be the first of the MSRead object
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in order to the object mechanism to work*/
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MSFilter filter;
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MSFifo *foutputs[MSREAD_MAX_OUTPUTS];
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MSQueue *qoutputs[MSREAD_MAX_OUTPUTS];
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MSSync *sync;
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gint rate;
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gint fd; /* the file descriptor of the file being read*/
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gint gran; /*granularity*/ /* for use with queues */
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gint need_swap;
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gint state;
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} MSRead;
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typedef struct _MSReadClass
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{
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/* the MSRead derivates from MSFilter, so the MSFilter class MUST be the first of the MSRead class
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in order to the class mechanism to work*/
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MSFilterClass parent_class;
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} MSReadClass;
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/* PUBLIC */
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#define MS_READ(filter) ((MSRead*)(filter))
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#define MS_READ_CLASS(klass) ((MSReadClass*)(klass))
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MSFilter * ms_read_new(char *name);
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gint ms_read_open(MSRead *r, gchar *name);
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/* set the granularity for reading file on disk */
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#define ms_read_set_bufsize(filter,sz) (filter)->gran=(sz)
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/* FOR INTERNAL USE*/
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void ms_read_init(MSRead *r);
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void ms_read_class_init(MSReadClass *klass);
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void ms_read_destroy( MSRead *obj);
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void ms_read_process(MSRead *r);
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void ms_read_setup(MSRead *r, MSSync *sync);
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typedef enum{
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MS_READ_EVENT_EOF /* end of file */
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} MSReadEvent;
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#endif
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