diff options
Diffstat (limited to 'kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msossread.c')
-rw-r--r-- | kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msossread.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msossread.c b/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msossread.c new file mode 100644 index 00000000..2486c736 --- /dev/null +++ b/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msossread.c @@ -0,0 +1,148 @@ +/* + 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 +*/ + +#include "msossread.h" +#include "mssync.h" +#include <unistd.h> +#include <errno.h> +#include <sys/time.h> +#include <sys/types.h> + +MSFilterInfo oss_read_info={ + "OSS read", + 0, + MS_FILTER_AUDIO_IO, + ms_oss_read_new, + NULL +}; + +static MSOssReadClass *msossreadclass=NULL; + +MSFilter * ms_oss_read_new() +{ + MSOssRead *w; + + if (msossreadclass==NULL) + { + msossreadclass=g_new(MSOssReadClass,1); + ms_oss_read_class_init( msossreadclass ); + } + + w=g_new(MSOssRead,1); + MS_FILTER(w)->klass=MS_FILTER_CLASS(msossreadclass); + ms_oss_read_init(w); + + return(MS_FILTER(w)); +} + +/* FOR INTERNAL USE*/ +void ms_oss_read_init(MSOssRead *w) +{ + ms_sound_read_init(MS_SOUND_READ(w)); + MS_FILTER(w)->outfifos=w->f_outputs; + MS_FILTER(w)->outfifos[0]=NULL; + w->devid=0; + w->sndcard=NULL; + w->freq=8000; +} + +gint ms_oss_read_set_property(MSOssRead *f,MSFilterProperty prop, void *value) +{ + switch(prop){ + case MS_FILTER_PROPERTY_FREQ: + f->freq=((gint*)value)[0]; + break; + } + return 0; +} +void ms_oss_read_class_init(MSOssReadClass *klass) +{ + ms_sound_read_class_init(MS_SOUND_READ_CLASS(klass)); + MS_FILTER_CLASS(klass)->max_foutputs=1; /* one fifo output only */ + MS_FILTER_CLASS(klass)->setup=(MSFilterSetupFunc)ms_oss_read_setup; + MS_FILTER_CLASS(klass)->unsetup=(MSFilterSetupFunc)ms_oss_read_stop; + MS_FILTER_CLASS(klass)->process= (MSFilterProcessFunc)ms_oss_read_process; + MS_FILTER_CLASS(klass)->set_property=(MSFilterPropertyFunc)ms_oss_read_set_property; + MS_FILTER_CLASS(klass)->destroy= (MSFilterDestroyFunc)ms_oss_read_destroy; + MS_FILTER_CLASS(klass)->w_maxgran=MS_OSS_READ_MAX_GRAN; + MS_FILTER_CLASS(klass)->info=&oss_read_info; + MS_SOUND_READ_CLASS(klass)->set_device=(gint (*)(MSSoundRead*,gint))ms_oss_read_set_device; + MS_SOUND_READ_CLASS(klass)->start=(void (*)(MSSoundRead*))ms_oss_read_start; + MS_SOUND_READ_CLASS(klass)->stop=(void (*)(MSSoundRead*))ms_oss_read_stop; + ms_filter_class_set_name(MS_FILTER_CLASS(klass),"OssRead"); + /* //ms_filter_class_set_attr( MS_FILTER_CLASS(klass),FILTER_CAN_SYNC|FILTER_IS_SOURCE); */ +} + +void ms_oss_read_destroy( MSOssRead *obj) +{ + g_free(obj); +} + +void ms_oss_read_process(MSOssRead *f) +{ + MSFifo *fifo; + char *p; + fifo=f->f_outputs[0]; + + g_return_if_fail(f->sndcard!=NULL); + g_return_if_fail(f->gran>0); + + if (snd_card_can_read(f->sndcard)){ + int got; + ms_fifo_get_write_ptr(fifo,f->gran,(void**)&p); + g_return_if_fail(p!=NULL); + got=snd_card_read(f->sndcard,p,f->gran); + if (got>=0 && got!=f->gran) ms_fifo_update_write_ptr(fifo,got); + } +} + + +void ms_oss_read_start(MSOssRead *r) +{ + g_return_if_fail(r->devid!=-1); + r->sndcard=snd_card_manager_get_card(snd_card_manager,r->devid); + g_return_if_fail(r->sndcard!=NULL); + /* open the device for an audio telephony signal with minimum latency */ + snd_card_open_r(r->sndcard,16,0,r->freq); + r->gran=(512*r->freq)/8000; + +} + +void ms_oss_read_stop(MSOssRead *w) +{ + g_return_if_fail(w->devid!=-1); + g_return_if_fail(w->sndcard!=NULL); + snd_card_close_r(w->sndcard); + w->sndcard=NULL; +} + + +void ms_oss_read_setup(MSOssRead *f, MSSync *sync) +{ + f->sync=sync; + ms_oss_read_start(f); +} + + +gint ms_oss_read_set_device(MSOssRead *r,gint devid) +{ + r->devid=devid; + return 0; +} |