diff options
Diffstat (limited to 'kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/jackcard.c')
-rw-r--r-- | kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/jackcard.c | 574 |
1 files changed, 574 insertions, 0 deletions
diff --git a/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/jackcard.c b/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/jackcard.c new file mode 100644 index 00000000..b929cce9 --- /dev/null +++ b/kopete/protocols/jabber/jingle/libjingle/talk/third_party/mediastreamer/jackcard.c @@ -0,0 +1,574 @@ +/* + 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 + + JACK support + Copyright (C) 2004 Tobias Gehrig tobias@gehrig.tk +*/ + +#include "jackcard.h" + +#ifdef __JACK_ENABLED__ + +#include "msossread.h" +#include "msosswrite.h" + +#include <signal.h> + +#define READBUFFERSIZE 524288 +#define WRITEBUFFERSIZE 524288 +#define BSIZE 512 + +/** + * jack_shutdown: + * @arg: + * + * This is the shutdown callback for this JACK application. + * It is called by JACK if the server ever shuts down or + * decides to disconnect the client. + * + */ +void +jack_shutdown (void *arg) +{ + JackCard* obj = (JackCard*) arg; + + obj->jack_running = FALSE; + obj->jack_active = FALSE; + obj->read.port = NULL; + if (obj->read.open) + obj->read.init = TRUE; + obj->write.port = NULL; + if (obj->write.open) + obj->write.init = TRUE; +} + +int samplerate(jack_nframes_t rate, void *arg) +{ + JackCard* obj = (JackCard*) arg; + int error; + + obj->rate = rate; + if (obj->read.open) { + obj->read.data.src_ratio = (double)obj->read.rate / (double)obj->rate; + obj->read.data.input_frames = (long)((double)obj->read.frames/obj->read.data.src_ratio); + g_free(obj->read.data.data_in); + obj->read.data.data_in = malloc(obj->read.data.input_frames*sizeof(float)); + if (obj->read.src_state) + if ((error = src_set_ratio(obj->read.src_state, obj->read.data.src_ratio)) != 0) + g_warning("Error while resetting the write samplerate: %s", src_strerror(error)); + } + if (obj->write.open) { + obj->write.data.src_ratio = (double)obj->rate / (double)obj->write.rate; + obj->write.data.output_frames = (long)((double)obj->write.frames*obj->write.data.src_ratio); + g_free(obj->write.data.data_out); + obj->write.data.data_out = malloc(obj->write.data.output_frames*sizeof(float)); + if (obj->write.src_state) + if ((error = src_set_ratio(obj->write.src_state, obj->write.data.src_ratio)) != 0) + g_warning("Error while resetting the write samplerate: %s", src_strerror(error)); + } + return 0; +} + +/* + * The process callback for this JACK application. + * It is called by JACK at the appropriate times. + * @nframes : + * @arg : + */ +int +process (jack_nframes_t nframes, void *arg) +{ + JackCard* obj = (JackCard*) arg; + sample_t *out; + sample_t *in; + + if (obj->clear && !obj->write.can_process) { + out = (sample_t *) jack_port_get_buffer (obj->write.port, nframes); + memset (out, 0, nframes * sizeof(sample_t)); + obj->clear = FALSE; + } + + if (!obj->can_process) + return 0; + + if(obj->read.can_process) { + in = (sample_t *) jack_port_get_buffer (obj->read.port, nframes); + jack_ringbuffer_write (obj->read.buffer, (void *) in, sizeof(sample_t) * nframes); + } + + if (obj->write.can_process) { + out = (sample_t *) jack_port_get_buffer (obj->write.port, nframes); + memset (out, 0, nframes * sizeof(sample_t)); + if (obj->clear && jack_ringbuffer_read_space(obj->write.buffer) == 0) { + obj->write.can_process = FALSE; + if (!obj->read.open) + obj->can_process = FALSE; + obj->clear = FALSE; + return 0; + } + jack_ringbuffer_read (obj->write.buffer, (void *) out, sizeof(sample_t) * nframes); + } + return 0; +} + +int jack_init(JackCard* obj) +{ + char* client_name; + int error; + + if (!obj->jack_running) { + obj->client = NULL; + client_name = g_strdup_printf("linphone-%u", g_random_int()); + if ((obj->client = jack_client_new (client_name)) == NULL) { + g_warning("cannot create jack client"); + g_free(client_name); + return -1; + } + g_message("Found Jack Daemon"); + g_free(client_name); + + /* tell the JACK server to call `process()' whenever + there is work to be done. + */ + jack_set_process_callback (obj->client, process, obj); + + /* tell the JACK server to call `jack_shutdown()' if + it ever shuts down, either entirely, or if it + just decides to stop calling us. + */ + jack_on_shutdown (obj->client, jack_shutdown, obj); + jack_set_sample_rate_callback (obj->client, samplerate, obj); + obj->rate = jack_get_sample_rate (obj->client); + if (obj->rate == 0) { + g_warning ("rate is 0???"); + if (jack_client_close(obj->client) != 0) + g_warning("could not close client"); + return -1; + } + obj->buffer_size = jack_get_buffer_size(obj->client); + obj->jack_running = TRUE; + } + + if (!obj->jack_active) { + if (jack_activate (obj->client)) { + g_warning("cannot activate jack client"); + return -1; + } else obj->jack_active = TRUE; + } + + if (obj->read.init) { + if (!obj->read.port && (obj->read.port = jack_port_register (obj->client, "input", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0))==NULL) { + g_warning("error while trying to register input port"); + return -1; + } + if (!obj->read.phys_ports && (obj->read.phys_ports = jack_get_ports (obj->client, NULL, NULL, JackPortIsPhysical|JackPortIsOutput)) == NULL) { + g_warning("Cannot find any physical capture ports\n"); + jack_port_unregister(obj->client, obj->read.port); + obj->read.port = NULL; + return -1; + } + if (!jack_port_connected(obj->read.port)) + if ((error = jack_connect (obj->client, obj->read.phys_ports[0], jack_port_name (obj->read.port))) != 0) { + g_warning("cannot connect input ports: %s -> %s\n", jack_port_name (obj->read.port), obj->read.phys_ports[0]); + if (error == EEXIST) g_warning("connection already made"); + else { + jack_port_unregister(obj->client, obj->read.port); + obj->read.port = NULL; + return -1; + } + } + obj->read.init = FALSE; + } + + if (obj->write.init) { + if (!obj->write.port && (obj->write.port = jack_port_register (obj->client, "output", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0))==NULL) { + g_warning("error while trying to register output port"); + return -1; + } + if (!obj->write.phys_ports && (obj->write.phys_ports = jack_get_ports (obj->client, NULL, NULL, JackPortIsPhysical|JackPortIsInput)) == NULL) { + g_warning("Cannot find any physical playback ports\n"); + jack_port_unregister(obj->client, obj->write.port); + obj->write.port = NULL; + return -1; + } + if (!jack_port_connected(obj->write.port)) { + if ((error = jack_connect (obj->client, jack_port_name (obj->write.port), obj->write.phys_ports[0])) != 0) { + g_warning("cannot connect output ports: %s -> %s\n", jack_port_name (obj->write.port), obj->write.phys_ports[0]); + if (error == EEXIST) g_warning("connection already made"); + else { + jack_port_unregister(obj->client, obj->write.port); + obj->write.port = NULL; + return -1; + } + } + if ((error = jack_connect (obj->client, jack_port_name (obj->write.port), obj->write.phys_ports[1])) != 0) { + g_warning("cannot connect output ports: %s -> %s\n", jack_port_name (obj->write.port), obj->write.phys_ports[1]); + if (error == EEXIST) g_warning("connection already made"); + else { + jack_port_unregister(obj->client, obj->write.port); + obj->write.port = NULL; + return -1; + } + } + } + obj->write.init = FALSE; + } + return 0; +} + +int jack_card_open_r(JackCard *obj,int bits,int stereo,int rate) +{ + int channels = stereo + 1, bsize, error; + obj->read.init = TRUE; + if (jack_init(obj) != 0) return -1; + + obj->read.rate = rate; + obj->sample_size = bits / 8; + obj->frame_size = channels * obj->sample_size; + bsize = BSIZE; + obj->read.frames = bsize / 2; + SND_CARD(obj)->bsize = bsize; + SND_CARD(obj)->flags |= SND_CARD_FLAGS_OPENED; + obj->read.channels = channels; + if ((obj->read.src_state = src_new (SRC_SINC_FASTEST, channels, &error)) == NULL) + g_warning("Error while initializing the samplerate converter: %s", src_strerror(error)); + obj->read.data.src_ratio = (double)rate / (double)obj->rate; + obj->read.data.input_frames = (long)((double)obj->read.frames/obj->read.data.src_ratio); + obj->read.data.data_in = malloc(obj->read.data.input_frames*sizeof(float)); + obj->read.data.data_out = malloc(obj->read.frames*sizeof(float)); + obj->read.data.end_of_input = 0; + if (!obj->read.buffer) + obj->read.buffer = jack_ringbuffer_create(READBUFFERSIZE); + obj->read.can_process = TRUE; + obj->can_process = TRUE; + obj->read.open = TRUE; + obj->read.init = FALSE; + return 0; +} + +int jack_card_open_w(JackCard *obj,int bits,int stereo,int rate) +{ + int channels = stereo + 1, bsize, err; + obj->write.init = TRUE; + if (jack_init(obj) != 0) return -1; + + obj->write.rate = rate; + obj->sample_size = bits / 8; + obj->frame_size = channels * obj->sample_size; + bsize = BSIZE; + obj->write.frames = bsize / 2; + SND_CARD(obj)->bsize = bsize; + SND_CARD(obj)->flags |= SND_CARD_FLAGS_OPENED; + obj->write.channels = channels; + if ((obj->write.src_state = src_new (SRC_SINC_FASTEST, channels, &err)) == NULL) + g_warning("Error while initializing the samplerate converter: %s", src_strerror(err)); + obj->write.data.src_ratio = (double)obj->rate / (double)rate; + obj->write.data.data_in = malloc(obj->write.frames*sizeof(float)); + obj->write.data.end_of_input = 0; + obj->write.data.output_frames = (long)((double)obj->write.frames*obj->write.data.src_ratio); + obj->write.data.data_out = malloc(obj->write.data.output_frames*sizeof(float)); + if (!obj->write.buffer) + obj->write.buffer = jack_ringbuffer_create(WRITEBUFFERSIZE); + obj->write.can_process = TRUE; + obj->can_process = TRUE; + obj->write.open = TRUE; + obj->write.init = FALSE; + return 0; +} + +void jack_card_set_blocking_mode(JackCard *obj, gboolean yesno) +{ +} + +void jack_card_close_r(JackCard *obj) +{ + obj->read.open = FALSE; + obj->read.init = FALSE; + obj->read.can_process = FALSE; + if (!obj->write.open) + obj->can_process = FALSE; + if (obj->read.src_state) + obj->read.src_state = src_delete (obj->read.src_state); + g_free(obj->read.data.data_in); + g_free(obj->read.data.data_out); +} + +void jack_card_close_w(JackCard *obj) +{ + obj->write.open = FALSE; + obj->write.init = FALSE; + obj->clear = TRUE; + if (!obj->jack_running) { + obj->write.can_process = FALSE; + obj->can_process = FALSE; + } + if (obj->write.src_state) + obj->write.src_state = src_delete (obj->write.src_state); + g_free(obj->write.data.data_in); + g_free(obj->write.data.data_out); +} + +int jack_card_probe(JackCard *obj,int bits,int stereo,int rate) +{ + if (obj->jack_running) return BSIZE; + else if (jack_init(obj) == 0) return BSIZE; + else return -1; +} + +void jack_card_destroy(JackCard *obj) +{ + if (obj->jack_running) jack_client_close (obj->client); + snd_card_uninit(SND_CARD(obj)); + if (obj->read.buffer) { + jack_ringbuffer_free(obj->read.buffer); + obj->read.buffer = NULL; + } + if (obj->write.buffer) { + jack_ringbuffer_free(obj->write.buffer); + obj->write.buffer = NULL; + } + if (obj->read.phys_ports) { + g_free(obj->read.phys_ports); + obj->read.phys_ports = NULL; + } + if (obj->write.phys_ports) { + g_free(obj->write.phys_ports); + obj->write.phys_ports = NULL; + } +} + +gboolean jack_card_can_read(JackCard *obj) +{ + g_return_val_if_fail(obj->read.buffer!=NULL,0); + if (jack_ringbuffer_read_space(obj->read.buffer)>=(long)((double)obj->read.frames/obj->read.data.src_ratio)*sizeof(sample_t)) return TRUE; + else return FALSE; +} + +int jack_card_read(JackCard *obj,char *buf,int size) +{ + size_t bytes, can_read, i; + int error; + float norm, value; + + g_return_val_if_fail((obj->read.buffer!=NULL)&&(obj->read.src_state!=NULL),-1); + if (jack_init(obj) != 0) return -1; + size /= 2; + can_read = MIN(size, obj->read.frames); + // can_read = MIN(((long)((double)can_read / obj->read.data.src_ratio))*sizeof(sample_t), jack_ringbuffer_read_space(obj->read.buffer)); + can_read = ((long)((double)can_read / obj->read.data.src_ratio))*sizeof(sample_t); + obj->read.can_process = FALSE; + bytes = jack_ringbuffer_read (obj->read.buffer, (void *)obj->read.data.data_in, can_read); + obj->read.can_process = TRUE; + obj->read.data.input_frames = bytes / sizeof(sample_t); + can_read = MIN(size, obj->read.frames); + obj->read.data.output_frames = can_read; + if ((error = src_process(obj->read.src_state, &(obj->read.data))) != 0) + g_warning("error while samplerate conversion. error: %s", src_strerror(error)); + norm = obj->read.level*obj->level*(float)0x8000; + for (i=0; i < obj->read.data.output_frames_gen; i++) { + value = obj->read.data.data_out[i]*norm; + if (value >= 32767.0) + ((short*)buf)[i] = 32767; + else if (value <= -32768.0) + ((short*)buf)[i] = -32768; + else + ((short*)buf)[i] = (short)value; + } + bytes = obj->read.data.output_frames_gen * 2; + return bytes; +} + +int jack_card_write(JackCard *obj,char *buf,int size) +{ + size_t bytes, can_write, i; + int error; + float norm; + + g_return_val_if_fail((obj->write.buffer!=NULL)&&(obj->write.src_state!=NULL),-1); + if (jack_init(obj) != 0) return -1; + size /= 2; + can_write = MIN(size, obj->write.frames); + norm = obj->write.level*obj->level/(float)0x8000; + for (i=0; i<can_write; i++) { + obj->write.data.data_in[i] = (float)((short*)buf)[i]*norm; + } + obj->write.data.input_frames = can_write; + if ((error = src_process(obj->write.src_state, &(obj->write.data))) != 0) + g_warning("error while samplerate conversion. error: %s", src_strerror(error)); + obj->write.can_process = FALSE; + bytes = jack_ringbuffer_write (obj->write.buffer, (void *) obj->write.data.data_out, sizeof(sample_t)*obj->write.data.output_frames_gen); + obj->write.can_process = TRUE; + return bytes; +} + +void jack_card_set_level(JackCard *obj,gint way,gint a) +{ + switch(way){ + case SND_CARD_LEVEL_GENERAL: + obj->level = (float)a / 100.0; + break; + case SND_CARD_LEVEL_INPUT: + obj->read.level = (float)a / 100.0; + break; + case SND_CARD_LEVEL_OUTPUT: + obj->write.level = (float)a / 100.0; + break; + default: + g_warning("jack_card_set_level: unsupported command."); + } +} + +gint jack_card_get_level(JackCard *obj,gint way) +{ + gint value = 0; + + switch(way){ + case SND_CARD_LEVEL_GENERAL: + value = (gint)(obj->level*100.0); + break; + case SND_CARD_LEVEL_INPUT: + value = (gint)(obj->read.level*100.0); + break; + case SND_CARD_LEVEL_OUTPUT: + value = (gint)(obj->write.level*100.0); + break; + default: + g_warning("jack_card_get_level: unsupported command."); + } + return value; +} + +void jack_card_set_source(JackCard *obj,int source) +{ +} + +MSFilter *jack_card_create_read_filter(JackCard *card) +{ + MSFilter *f=ms_oss_read_new(); + ms_oss_read_set_device(MS_OSS_READ(f),SND_CARD(card)->index); + return f; +} + +MSFilter *jack_card_create_write_filter(JackCard *card) +{ + MSFilter *f=ms_oss_write_new(); + ms_oss_write_set_device(MS_OSS_WRITE(f),SND_CARD(card)->index); + return f; +} +SndCard * jack_card_new(jack_client_t *client) +{ + JackCard * obj; + SndCard *base; + + obj= g_new0(JackCard,1); + + if (!client) return NULL; + obj->client = client; + obj->jack_running = TRUE; + obj->jack_active = FALSE; + obj->can_process = FALSE; + obj->clear = TRUE; + obj->write.can_process = FALSE; + obj->write.open = FALSE; + obj->write.init = TRUE; + obj->write.port = NULL; + obj->write.phys_ports = NULL; + obj->write.buffer = NULL; + obj->read.can_process = FALSE; + obj->read.open = FALSE; + obj->read.init = TRUE; + obj->read.port = NULL; + obj->read.phys_ports = NULL; + obj->read.buffer = NULL; + + /* tell the JACK server to call `process()' whenever + there is work to be done. + */ + jack_set_process_callback (client, process, obj); + + /* tell the JACK server to call `jack_shutdown()' if + it ever shuts down, either entirely, or if it + just decides to stop calling us. + */ + jack_on_shutdown (client, jack_shutdown, obj); + + jack_set_sample_rate_callback (client, samplerate, obj); + + obj->rate = jack_get_sample_rate (client); + obj->buffer_size = jack_get_buffer_size(obj->client); + + jack_init(obj); + + base= SND_CARD(obj); + snd_card_init(base); + +#ifdef HAVE_GLIB + base->card_name=g_strdup_printf("JACK client"); +#else + base->card_name=malloc(100); + snprintf(base->card_name, 100, "JACK client"); +#endif + + base->_probe=(SndCardOpenFunc)jack_card_probe; + base->_open_r=(SndCardOpenFunc)jack_card_open_r; + base->_open_w=(SndCardOpenFunc)jack_card_open_w; + base->_can_read=(SndCardPollFunc)jack_card_can_read; + base->_set_blocking_mode=(SndCardSetBlockingModeFunc)jack_card_set_blocking_mode; + base->_read=(SndCardIOFunc)jack_card_read; + base->_write=(SndCardIOFunc)jack_card_write; + base->_close_r=(SndCardCloseFunc)jack_card_close_r; + base->_close_w=(SndCardCloseFunc)jack_card_close_w; + base->_set_rec_source=(SndCardMixerSetRecSourceFunc)jack_card_set_source; + base->_set_level=(SndCardMixerSetLevelFunc)jack_card_set_level; + base->_get_level=(SndCardMixerGetLevelFunc)jack_card_get_level; + base->_destroy=(SndCardDestroyFunc)jack_card_destroy; + base->_create_read_filter=(SndCardCreateFilterFunc)jack_card_create_read_filter; + base->_create_write_filter=(SndCardCreateFilterFunc)jack_card_create_write_filter; + + obj->read.buffer=NULL; + obj->write.buffer=NULL; + obj->buffer_size = 0; + obj->level = 1.0; + obj->write.level = 1.0; + obj->read.level = 1.0; + + return base; +} + + +gint jack_card_manager_init(SndCardManager *m, gint index) +{ + jack_client_t *client = NULL; + char* client_name; + + client_name=g_strdup_printf("linphone-%u", g_random_int()); + if ((client = jack_client_new (client_name))!= NULL) + { + g_message("Found Jack Daemon"); + g_free(client_name); + m->cards[index]=jack_card_new(client); + m->cards[index]->index=index; + return 1; + } else { + g_free(client_name); + return 0; + } +} + +#endif |