| /* |
| The mediastreamer library aims at providing modular media processing and I/O |
| for linphone, but also for any telephony application. |
| Copyright (C) 2001 Simon MORLAT simon.morlat@linphone.org |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #ifndef MSRINGPLAYER_H |
| #define MSRINGPLAYER_H |
| |
| #include "msfilter.h" |
| #include "mssync.h" |
| |
| |
| /*this is the class that implements file reading source filter*/ |
| |
| #define MS_RING_PLAYER_MAX_OUTPUTS 1 /* max output per filter*/ |
| |
| #define MS_RING_PLAYER_DEF_GRAN 8192 /* the default granularity*/ |
| |
| #define MS_RING_PLAYER_END_OF_RING_EVENT 1 |
| |
| struct _MSRingPlayer |
| { |
| /* the MSRingPlayer derivates from MSFilter, so the MSFilter object MUST be the first of the MSRingPlayer object |
| in order to the object mechanism to work*/ |
| MSFilter filter; |
| MSFifo *foutputs[MS_RING_PLAYER_MAX_OUTPUTS]; |
| MSQueue *qoutputs[MS_RING_PLAYER_MAX_OUTPUTS];\ |
| MSSync *sync; |
| gint gran; |
| gint freq; |
| gint rate; |
| gint channel; /* number of interleaved channels */ |
| gint silence; /* silence time between each ring, in seconds */ |
| gint state; |
| gint fd; /* the file descriptor of the file being read*/ |
| gint silence_bytes; /*silence in number of bytes between each ring */ |
| gint current_pos; |
| gint need_swap; |
| }; |
| |
| typedef struct _MSRingPlayer MSRingPlayer; |
| |
| struct _MSRingPlayerClass |
| { |
| /* the MSRingPlayer derivates from MSFilter, so the MSFilter class MUST be the first of the MSRingPlayer class |
| in order to the class mechanism to work*/ |
| MSFilterClass parent_class; |
| }; |
| |
| typedef struct _MSRingPlayerClass MSRingPlayerClass; |
| |
| /* PUBLIC */ |
| #define MS_RING_PLAYER(filter) ((MSRingPlayer*)(filter)) |
| #define MS_RING_PLAYER_CLASS(klass) ((MSRingPlayerClass*)(klass)) |
| MSFilter * ms_ring_player_new(char *name, gint seconds); |
| gint ms_ring_player_get_sample_freq(MSRingPlayer *obj); |
| |
| |
| /* FOR INTERNAL USE*/ |
| void ms_ring_player_init(MSRingPlayer *r); |
| void ms_ring_player_class_init(MSRingPlayerClass *klass); |
| void ms_ring_player_destroy( MSRingPlayer *obj); |
| void ms_ring_player_process(MSRingPlayer *r); |
| #define ms_ring_player_set_bufsize(filter,sz) (filter)->gran=(sz) |
| void ms_ring_player_setup(MSRingPlayer *r,MSSync *sync); |
| #endif |