diff options
Diffstat (limited to 'kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msosswrite.c')
| -rw-r--r-- | kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msosswrite.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msosswrite.c b/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msosswrite.c new file mode 100644 index 00000000..cc86cd6b --- /dev/null +++ b/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/msosswrite.c @@ -0,0 +1,247 @@ +/* + 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 "msosswrite.h" +#include "mssync.h" +#include <unistd.h> +#include <math.h> + +MSFilterInfo oss_write_info={ + "OSS write", + 0, + MS_FILTER_OTHER, + ms_oss_write_new, + NULL +}; + + +static MSOssWriteClass *msosswriteclass=NULL; + +MSFilter * ms_oss_write_new() +{ + MSOssWrite *w; + + if (msosswriteclass==NULL) + { + msosswriteclass=g_new(MSOssWriteClass,1); + ms_oss_write_class_init( msosswriteclass ); + } + w=g_new(MSOssWrite,1); + MS_FILTER(w)->klass=MS_FILTER_CLASS(msosswriteclass); + ms_oss_write_init(w); + return(MS_FILTER(w)); +} + +/* FOR INTERNAL USE*/ +void ms_oss_write_init(MSOssWrite *w) +{ + ms_sound_write_init(MS_SOUND_WRITE(w)); + MS_FILTER(w)->infifos=w->f_inputs; + MS_FILTER(w)->infifos[0]=NULL; + MS_FILTER(w)->r_mingran=512; /* very few cards can do that...*/ + w->devid=0; + w->sndcard=NULL; + w->freq=8000; + w->channels=1; + w->dtmf_time=-1; +} + +gint ms_oss_write_set_property(MSOssWrite *f,MSFilterProperty prop, void *value) +{ + switch(prop){ + case MS_FILTER_PROPERTY_FREQ: + f->freq=((gint*)value)[0]; + break; + case MS_FILTER_PROPERTY_CHANNELS: + f->channels=((gint*)value)[0]; + break; + } + return 0; +} + +void ms_oss_write_class_init(MSOssWriteClass *klass) +{ + ms_sound_write_class_init(MS_SOUND_WRITE_CLASS(klass)); + MS_FILTER_CLASS(klass)->max_finputs=1; /* one fifo input only */ + MS_FILTER_CLASS(klass)->r_maxgran=MS_OSS_WRITE_DEF_GRAN; + MS_FILTER_CLASS(klass)->process= (MSFilterProcessFunc)ms_oss_write_process; + MS_FILTER_CLASS(klass)->destroy= (MSFilterDestroyFunc)ms_oss_write_destroy; + MS_FILTER_CLASS(klass)->setup= (MSFilterSetupFunc)ms_oss_write_setup; + MS_FILTER_CLASS(klass)->unsetup= (MSFilterSetupFunc)ms_oss_write_stop; + MS_FILTER_CLASS(klass)->set_property=(MSFilterPropertyFunc)ms_oss_write_set_property; + MS_FILTER_CLASS(klass)->info=&oss_write_info; + MS_SOUND_WRITE_CLASS(klass)->set_device=(gint (*)(MSSoundWrite*,gint))ms_oss_write_set_device; + MS_SOUND_WRITE_CLASS(klass)->start=(void (*)(MSSoundWrite*))ms_oss_write_start; + MS_SOUND_WRITE_CLASS(klass)->stop=(void (*)(MSSoundWrite*))ms_oss_write_stop; + MS_SOUND_WRITE_CLASS(klass)->set_level=(void (*)(MSSoundWrite*, gint))ms_oss_write_set_level; + ms_filter_class_set_name(MS_FILTER_CLASS(klass),"OssWrite"); +} + +void ms_oss_write_destroy( MSOssWrite *obj) +{ + + g_free(obj); +} + +void ms_oss_write_process(MSOssWrite *f) +{ + MSFifo *fifo; + void *p; + int i; + gint gran=ms_filter_get_mingran(MS_FILTER(f)); + + /* always consume something */ + fifo=f->f_inputs[0]; + ms_fifo_get_read_ptr(fifo,gran,&p); + if (p==NULL) { + g_warning("Not enough data: gran=%i.",gran); + return; + } + g_return_if_fail(f->sndcard!=NULL); + if (f->dtmf_time!=-1){ + gint16 *buf=(gint16*)p; + /* generate a DTMF*/ + for(i=0;i<gran/2;i++){ + buf[i]=(gint16)(10000.0*sin(2*M_PI*(double)f->dtmf_time*f->lowfreq)); + buf[i]+=(gint16)(10000.0*sin(2*M_PI*(double)f->dtmf_time*f->highfreq)); + f->dtmf_time++; + /* //printf("buf[%i]=%i\n",i,buf[i]); */ + } + if (f->dtmf_time>f->dtmf_duration) f->dtmf_time=-1; /*finished*/ + } + snd_card_write(f->sndcard,p,gran); +} + +void ms_oss_write_start(MSOssWrite *w) +{ + gint bsize; + g_return_if_fail(w->devid!=-1); + w->sndcard=snd_card_manager_get_card(snd_card_manager,w->devid); + g_return_if_fail(w->sndcard!=NULL); + /* open the device for an audio telephony signal with minimum latency */ + snd_card_open_w(w->sndcard,16,w->channels==2,w->freq); + w->bsize=snd_card_get_bsize(w->sndcard); + /* //MS_FILTER(w)->r_mingran=w->bsize; */ + /* //ms_sync_set_samples_per_tick(MS_FILTER(w)->sync,bsize); */ +} + +void ms_oss_write_stop(MSOssWrite *w) +{ + g_return_if_fail(w->devid!=-1); + g_return_if_fail(w->sndcard!=NULL); + snd_card_close_w(w->sndcard); + w->sndcard=NULL; +} + +void ms_oss_write_set_level(MSOssWrite *w,gint a) +{ + +} + +gint ms_oss_write_set_device(MSOssWrite *w, gint devid) +{ + w->devid=devid; + return 0; +} + +void ms_oss_write_setup(MSOssWrite *r) +{ + /* //g_message("starting MSOssWrite.."); */ + ms_oss_write_start(r); +} + + + +void ms_oss_write_play_dtmf(MSOssWrite *w, char dtmf){ + + w->dtmf_duration=0.1*w->freq; + switch(dtmf){ + case '0': + w->lowfreq=941; + w->highfreq=1336; + break; + case '1': + w->lowfreq=697; + w->highfreq=1209; + break; + case '2': + w->lowfreq=697; + w->highfreq=1336; + break; + case '3': + w->lowfreq=697; + w->highfreq=1477; + break; + case '4': + w->lowfreq=770; + w->highfreq=1209; + break; + case '5': + w->lowfreq=770; + w->highfreq=1336; + break; + case '6': + w->lowfreq=770; + w->highfreq=1477; + break; + case '7': + w->lowfreq=852; + w->highfreq=1209; + break; + case '8': + w->lowfreq=852; + w->highfreq=1336; + break; + case '9': + w->lowfreq=852; + w->highfreq=1477; + break; + case '*': + w->lowfreq=941; + w->highfreq=1209; + break; + case '#': + w->lowfreq=941; + w->highfreq=1477; + break; + case 'A': + w->lowfreq=697; + w->highfreq=1633; + break; + case 'B': + w->lowfreq=770; + w->highfreq=1633; + break; + case 'C': + w->lowfreq=852; + w->highfreq=1633; + break; + case 'D': + w->lowfreq=941; + w->highfreq=1633; + break; + default: + g_warning("Not a dtmf key."); + return; + } + w->lowfreq=w->lowfreq/w->freq; + w->highfreq=w->highfreq/w->freq; + w->dtmf_time=0; +} |