From fd2045584f7084d209607f4d717a66bea9afe88e Mon Sep 17 00:00:00 2001 From: Super User Date: Tue, 15 May 2007 22:59:29 +0200 Subject: backup --- port.cpp | 1113 ++------------------------------------------------------------ 1 file changed, 22 insertions(+), 1091 deletions(-) (limited to 'port.cpp') diff --git a/port.cpp b/port.cpp index a68ca59..a3a33c8 100644 --- a/port.cpp +++ b/port.cpp @@ -141,6 +141,7 @@ Port::Port(int type, char *portname, struct port_settings *settings) } SCPY(p_name, portname); SCPY(p_tone_dir, p_settings.tones_dir); // just to be sure + p_clock = 0; p_type = type; p_serial = port_serial++; p_debug_nothingtosend = 0; @@ -261,25 +262,6 @@ void Port::new_state(int state) } -/* - * find the port using h323 token - */ -class Port *find_port_with_token(char *name) -{ - class Port *port = port_first; - - while(port) - { -//printf("comparing: '%s' with '%s'\n", name, p_name); - if ((port->p_type==PORT_TYPE_H323_IN || port->p_type==PORT_TYPE_H323_OUT) && !strcmp(port->p_name, name)) - return(port); - port = port->next; - } - - return(NULL); -} - - /* * find the port with port_id */ @@ -298,47 +280,6 @@ class Port *find_port_id(unsigned long port_id) return(NULL); } -#if 0 -/* - * open the knock sound - */ -void Port::set_knock(char *tones_dir_epoint) -{ - char filename[128], *tones_dir; - - /* check if we have the epoint override the tones_dir of options.conf */ - tones_dir = options.tones_dir; - if (tones_dir_epoint[0]) - { - tones_dir = tones_dir_epoint; - } - - if (p_knock_fh >= 0) - { - close(p_knock_fh); - p_knock_fh = -1; - fhuse--; - } - p_knock_fetched = NULL; - - if ((p_knock_fetched=open_tone_fetched(tones_dir, "knock", &p_knock_codec, &p_knock_size, &p_knock_left))) - { - PDEBUG(DEBUG_PORT, "PORT(%s) opening fetched tone: %s\n", p_name, "knock"); - return; - } - - SPRINT(filename, "%s/%s/knock", INSTALL_DATA, tones_dir); - if ((p_knock_fh=open_tone(filename, &p_knock_codec, &p_knock_size, &p_knock_left)) >= 0) - { - PDEBUG(DEBUG_PORT, "PORT(%s) opening tone: %s\n", p_name, filename); - fhuse++; - } else - { - p_knock_fh = -1; - } -} -#endif - /* * set echotest @@ -348,6 +289,7 @@ void Port::set_echotest(int echotest) p_echotest = echotest; } + /* * set the file in the tone directory with the given name */ @@ -359,15 +301,6 @@ void Port::set_tone(char *dir, char *name) if (name == NULL) name = ""; -#if 0 - /* knocking ? */ - if (!strcmp(name, "knock")) - { - set_knock(tones_dir_epoint); - return; - } -#endif - /* no counter, no eof, normal speed */ p_tone_counter = 0; p_tone_eof = 0; @@ -518,45 +451,6 @@ void Port::set_vbox_play(char *name, int offset) /* seek */ if (p_tone_name[0]) { -//printf("\n\n\n tone_codec = %d\n\n\n\n",p_tone_codec); -#if 0 - switch(p_tone_codec) - { - case CODEC_LAW: - case CODEC_8BIT: - lseek(p_tone_fh, offset*8000L, SEEK_SET); - size = p_tone_size / 8000L; - if (offset*8000L <= p_tone_left) - p_tone_left -= offset*8000L; - break; - - case CODEC_MONO: - lseek(p_tone_fh, offset*16000L, SEEK_SET); - size = p_tone_size / 16000L; - if (offset*16000L <= p_tone_left) - p_tone_left -= offset*16000L; -//printf("\n\n\n size = %d\n\n\n\n",size); - break; - - case CODEC_STEREO: - lseek(p_tone_fh, offset*32000L, SEEK_SET); - size = p_tone_size / 32000L; - if (offset*32000L <= p_tone_left) - p_tone_left -= offset*32000L; - break; - - default: - PERROR("no codec specified! exitting...\n"); - exit(-1); - } -#else - lseek(p_tone_fh, offset*8000L, SEEK_SET); - size = p_tone_size / 8000L; - if (offset*8000L <= p_tone_left) - p_tone_left -= offset*8000L; -#endif - - /* send message with counter value */ if (p_tone_size>=0 && ACTIVE_EPOINT(p_epointlist)) { @@ -578,274 +472,30 @@ void Port::set_vbox_speed(int speed) p_tone_speed = speed; } -/* write data to port's mixer buffer - * it will be read by the port using read_audio - * synchronisation is also done when writing is too fast and buffer is full - * the mixer buffer will only mix what cannot be mixed by kernel mixer - * - * also write data to the record buffer. the record buffer will mix everything. - */ -void Port::mixer(union parameter *param) -{ - struct mixer_relation *relation, **relationpointer; - int len; - unsigned char *data; - signed short *data_16; - int writep; - signed long *buffer, *record; - int must_mix = 1; /* set, if we need to mix (not done by kernel) */ - - /* we do not mix if we have audio from ourself but we need to record - * unless we have a local echo enabled - */ - if (param->data.port_id==p_serial && !p_echotest) - must_mix = 0; - - if ((param->data.port_type&PORT_CLASS_MASK)==PORT_CLASS_mISDN - && (p_type&PORT_CLASS_MASK)==PORT_CLASS_mISDN) - { - must_mix = 0; - } - if (!p_record && !must_mix) /* if we do not record AND no need to mix */ - { - return; - } - - /* get the relation to the write pointer. if no relation exists - * for the given source port, we create one. - */ - relation = p_mixer_rel; - relationpointer = &(p_mixer_rel); - if (!relation) /* there is no relation at all */ - { - /* clear buffer to 0-volume and reset writep */ - memset(p_mixer_buffer, 0, sizeof(p_mixer_buffer)); - memset(p_record_buffer, 0, sizeof(p_record_buffer)); - memset(p_stereo_buffer, 0, sizeof(p_stereo_buffer)); - } else /* else because we do not need to run a 0-loop */ - while(relation) - { - if (relation->port_id == param->data.port_id) - break; - relationpointer = &(relation->next); - relation = relation->next; - } - if (!relation) - { - relation = *relationpointer = (struct mixer_relation *)calloc(1, sizeof(struct mixer_relation)); - if (!relation) - { - PERROR("fatal error: cannot alloc memory for port mixer relation\n"); - return; /* no mem */ - } - pmemuse++; - memset(relation, 0, sizeof(struct mixer_relation)); - relation->port_id = param->data.port_id; - /* put write buffer in front of read buffer */ -#ifndef BETTERDELAY - relation->mixer_writep = (p_mixer_readp+(PORT_BUFFER/2))%PORT_BUFFER; -#else - relation->mixer_writep = p_mixer_readp; -#endif -#ifdef MIXER_DEBUG - PDEBUG(DEBUG_PORT, "PORT(%s) Adding new mixer relation from port #%d (readp=%d, writep=%d, PORT_BUFFER=%d).\n", p_name, param->data.port_id, p_mixer_readp, relation->mixer_writep, PORT_BUFFER); -#endif - } - - /* adding remote's audio data to our mixer_buffer / record_buffer */ - len = param->data.len; - if (param->data.compressed == 0) /* in case of 16 bit data */ - len >>= 1; - if (len>PORT_BUFFER) - PERROR("fatal error: audio data from remote port #%d is larger than mixer buffer %d>%d\n", param->data.port_id, len, PORT_BUFFER); - writep = relation->mixer_writep; - buffer = p_mixer_buffer; - record = p_record_buffer; - /* if stereo should be recorded */ - if (param->data.port_id == p_serial) - if (p_record_type == CODEC_STEREO) - record = p_stereo_buffer; - /* NOTE: if read and write pointer are equal, the buffer is full */ - if ((p_mixer_readp-writep+PORT_BUFFER)%PORT_BUFFER < len) /* we would overrun the read pointer */ - { -#ifdef MIXER_DEBUG - PERROR("PORT(%s) buffer overrun, source port #%d is sending too fast. (dropping %d samples)\n", p_name, param->data.port_id, len); -#endif - // we do not resync since dropping causes slowing writepointer down anyway... - //relation->mixer_writep = (p_mixer_readp+(PORT_BUFFER/2))%PORT_BUFFER; - return; - } - - if (!p_record && must_mix) - { - /* WE MUST MIX BUT DO NOT RECORD */ - if (param->data.compressed) - { - /* compressed data */ - data = param->data.data; - if (len+writep >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+writep-PORT_BUFFER; /* rest to write in front of buffer */ - while(writep < PORT_BUFFER) /* write till buffer end */ - buffer[writep++] += audio_law_to_s32[*(data++)]; - writep = 0; - } - while(len--) /* write rest */ - buffer[writep++] += audio_law_to_s32[*(data++)]; - } else - { - /* uncompressed data */ - data_16 = (signed short *)param->data.data; - if (len+writep >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+writep-PORT_BUFFER; /* rest to write in front of buffer */ - while(writep < PORT_BUFFER) /* write till buffer end */ - buffer[writep++] += *(data_16++); - writep = 0; - } - while(len--) /* write rest */ - buffer[writep++] += *(data_16++); - } - } else /* else */ - if (p_record && !must_mix) - { - /* WE MUST RECORD BUT DO NOT MIX */ - if (param->data.compressed) - { - /* compressed data */ - data = param->data.data; - if (len+writep >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+writep-PORT_BUFFER; /* rest to write in front of buffer */ - while(writep < PORT_BUFFER) /* write till buffer end */ - record[writep++] += audio_law_to_s32[*(data++)]; - writep = 0; - } - while(len--) /* write rest */ - record[writep++] += audio_law_to_s32[*(data++)]; - } else - { - /* uncompressed data */ - data_16 = (signed short *)param->data.data; - if (len+writep >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+writep-PORT_BUFFER; /* rest to write in front of buffer */ - while(writep < PORT_BUFFER) /* write till buffer end */ - record[writep++] += *(data_16++); - writep = 0; - } - while(len--) /* write rest */ - record[writep++] += *(data_16++); - } - } else - { - /* WE MUST MIX AND MUST RECORD */ - if (param->data.compressed) - { - /* compressed data */ - data = param->data.data; - if (len+writep >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+writep-PORT_BUFFER; /* rest to write in front of buffer */ - while(writep < PORT_BUFFER) /* write till buffer end */ - { - buffer[writep] += audio_law_to_s32[*data]; - record[writep++] += audio_law_to_s32[*(data++)]; - } - writep = 0; - } - while(len--) /* write rest */ - { - buffer[writep] += audio_law_to_s32[*data]; - record[writep++] += audio_law_to_s32[*(data++)]; - } - } else - { - /* uncompressed data */ - data_16 = (signed short *)param->data.data; - if (len+writep >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+writep-PORT_BUFFER; /* rest to write in front of buffer */ - while(writep < PORT_BUFFER) /* write till buffer end */ - { - buffer[writep] += *data_16; - record[writep++] += *(data_16++); - } - writep = 0; - } - while(len--) /* write rest */ - { - buffer[writep] += *data_16; - record[writep++] += *(data_16++); - } - } - } - relation->mixer_writep = writep; /* new write pointer */ -// PDEBUG(DEBUG_PORT "written data len=%d port=%d (readp=%d, writep=%d, PORT_BUFFER=%d).\n", param->data.len, param->data.port_id, p_mixer_readp, relation->mixer_writep, PORT_BUFFER); -} - - /* * read from the given file as specified in port_set_tone and return sample data - * this data is mixed with the user space mixer (if anything mixed) and - * filled into the buffer as many as given by length. - * if compressed is true, the result in buffer is alaw/ulaw-compressed - * otherwhise it is 16 bit audio. in this case the buffer size must be twice the lenght. - * the length is the number of samples, not bytes in buffer! */ -int Port::read_audio(unsigned char *buffer, int length, int compressed) +int Port::read_audio(unsigned char *buffer, int length) { int l,len; - unsigned short temp_buffer[PORT_BUFFER]; /* buffer for up to 32 bit of data */ - int codec_in; /* current codec to use */ - unsigned char *buf_in8; /* buffer pointer for alaw/ulaw/8bit data */ - signed short *buf_in16; /* buffer pointer for alaw/ulaw/8bit data */ - signed short *buf_out16; /* buffer pointer for outgoing audio data */ - signed long *mix_buffer, *mix_buffer2, sample; /* pointer to mixer buffer */ - struct mixer_relation *relation, **relationpointer; int readp; - int nodata=0; /* to detect 0-length files */ + int nodata=0; /* to detect 0-length files and avoid endless reopen */ char filename[128]; - signed short record_buffer[PORT_BUFFER<<1], *rec_buffer; /* buffer of recorded part which will be written (*2 for stereo) */ - unsigned char *rec8_buffer; /* used to send 8-bit audio (wave-8bit, law) */ int tone_left_before; /* temp variable to determine the change in p_tone_left */ /* nothing */ if (length == 0) return(0); - /* just in case, we get too much to do */ - if (length > PORT_BUFFER-1) - length = PORT_BUFFER-1; - len = length; - buf_in8 = (unsigned char *)temp_buffer; - buf_in16 = (signed short *)temp_buffer; - codec_in = p_tone_codec; /* if there is no tone set, use silence */ if (p_tone_name[0] == 0) { - codec_in = CODEC_LAW; rest_is_silence: - switch(codec_in) - { - case CODEC_LAW: - memset(buf_in8, (options.law=='a')?0x2a:0xff, len); /* silence */ - break; - - case CODEC_MONO: - case CODEC_8BIT: - case CODEC_STEREO: - memset(buf_in16, 0, len<<1); /* silence */ - break; - - default: - PERROR("Software error: no codec during silence\n"); - exit(-1); - } - goto mix_to_buffer; + memset(buffer, (options.law=='a')?0x2a:0xff, len); /* silence */ + goto done; } /* if the file pointer is not open, we open it */ @@ -877,8 +527,6 @@ rest_is_silence: } fhuse++; } - codec_in = p_tone_codec; -//printf("\n\ncodec=%d\n\n\n", p_tone_codec); PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename); } @@ -887,69 +535,19 @@ read_more: tone_left_before = p_tone_left; if (p_tone_fh >= 0) { - switch(codec_in) - { - case CODEC_LAW: - l = read_tone(p_tone_fh, buf_in8, codec_in, len, p_tone_size, &p_tone_left, p_tone_speed); - if (l<0 || l>len) /* paranoia */ - l=0; - buf_in8 += l; - len -= l; - break; - - case CODEC_8BIT: - l = read_tone(p_tone_fh, buf_in16, codec_in, len, p_tone_size, &p_tone_left, p_tone_speed); - if (l<0 || l>len) /* paranoia */ - l=0; - buf_in16 += l; - len -= l; - break; - - case CODEC_MONO: - l = read_tone(p_tone_fh, buf_in16, codec_in, len, p_tone_size, &p_tone_left, p_tone_speed); - if (l<0 || l>len) /* paranoia */ - l=0; - buf_in16 += l; - len -= l; - break; - - case CODEC_STEREO: - l = read_tone(p_tone_fh, buf_in16, codec_in, len, p_tone_size, &p_tone_left, p_tone_speed); - if (l<0 || l>len) /* paranoia */ - l=0; - buf_in16 += l; - len -= l; - break; - - default: - PERROR("Software error: current tone reading has no codec\n"); - exit(-1); - } + l = read_tone(p_tone_fh, buffer, p_tone_codec, len, p_tone_size, &p_tone_left, p_tone_speed); + if (l<0 || l>len) /* paranoia */ + l=0; + buffer += l; + len -= l; } if (p_tone_fetched) { - switch(codec_in) - { - case CODEC_LAW: - l = read_tone_fetched(&p_tone_fetched, buf_in8, codec_in, len, p_tone_size, &p_tone_left, p_tone_speed); - if (l<0 || l>len) /* paranoia */ - l=0; - buf_in8 += l; - len -= l; - break; - - case CODEC_MONO: - l = read_tone_fetched(&p_tone_fetched, buf_in16, codec_in, len, p_tone_size, &p_tone_left, p_tone_speed); - if (l<0 || l>len) /* paranoia */ - l=0; - buf_in16 += l; - len -= l; - break; - - default: - PERROR("Software error: current tone reading has no codec\n"); - exit(-1); - } + l = read_tone_fetched(&p_tone_fetched, buffer, len, p_tone_size, &p_tone_left, p_tone_speed); + if (l<0 || l>len) /* paranoia */ + l=0; + buffer += l; + len -= l; } /* if counter is enabled, we check if we have a change */ @@ -968,7 +566,7 @@ read_more: } if (len==0) - goto mix_to_buffer; + goto done; if (p_tone_fh >= 0) { @@ -1031,690 +629,23 @@ try_loop: } fhuse++; } - codec_in = p_tone_codec; nodata++; PDEBUG(DEBUG_PORT, "PORT(%s) opening %stone: %s\n", p_name, p_tone_fetched?"fetched ":"", filename); /* now we have opened the loop */ goto read_more; - /* ********** - * now we mix - * we take the buffer content and mix the mixer_buffer to what we got - */ -mix_to_buffer: - /* release all writepointer which will underrun, since writing of - * remote port data is too slow - */ - relation = p_mixer_rel; - readp = p_mixer_readp; - relationpointer = &(p_mixer_rel); - while(relation) /* if no relation, this is skipped */ - { - /* NOTE: if writep and readp are equal, the distance ist max - * == PORT_BUFFER - */ - if (((relation->mixer_writep-readp-1+PORT_BUFFER)%PORT_BUFFER)+1 <= length) /* underrun */ - { - /* remove port relation in order to resync. - * this is also caused by ports which do not transmit - * anymore. - */ -#ifdef MIXER_DEBUG - PERROR("PORT(%s) Buffer underrun, source port is sending too slow or stopped sending, removing relation. (readp=%d, writep=%d, PORT_BUFFER=%d)\n", p_name, readp, relation->mixer_writep, PORT_BUFFER); -#endif - - *relationpointer = relation->next; - memset(relation, 0, sizeof(struct mixer_relation)); - free(relation); - pmemuse--; - relation = *relationpointer; - continue; - } - relationpointer = &(relation->next); - relation = relation->next; - } - - /* if we do recording, we write the record data and the buffer data to the record fp and increment record_count */ - if (p_record) - switch (p_record_type) - { - case CODEC_MONO: - /* convert from mixer to uncompressed 16 bit mono audio */ - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - len = length; - mix_buffer = p_record_buffer; - rec_buffer = record_buffer; - buf_in16 = (signed short *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length<<1), 1, p_record); - p_record_length = (length<<1) + p_record_length; - } - break; - - case CODEC_LAW: - len = length; - mix_buffer = p_record_buffer; - rec_buffer = record_buffer; - buf_in8 = (unsigned char *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length<<1), 1, p_record); - p_record_length = (length<<1) + p_record_length; - } - break; - - } - break; - - case CODEC_STEREO: - /* convert from mixer to uncompressed 16 bit stereo audio */ - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - len = length; - mix_buffer = p_record_buffer; - mix_buffer2 = p_stereo_buffer; - rec_buffer = record_buffer; - buf_in16 = (signed short *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - - *(rec_buffer++) = mix_buffer2[readp]; - mix_buffer2[readp++] = 0; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - *(rec_buffer++) = mix_buffer2[readp]; - mix_buffer2[readp++] = 0; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length<<2), 1, p_record); - p_record_length = (length<<2) + p_record_length; - } - break; - - case CODEC_LAW: - len = length; - mix_buffer = p_record_buffer; - mix_buffer2 = p_stereo_buffer; - rec_buffer = record_buffer; - buf_in8 = (unsigned char *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - - *(rec_buffer++) = mix_buffer2[readp]; - mix_buffer2[readp++] = 0; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec_buffer++) = sample; - *(rec_buffer++) = mix_buffer2[readp]; - mix_buffer2[readp++] = 0; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length<<2), 1, p_record); - p_record_length = (length<<2) + p_record_length; - } - break; - } - break; - - case CODEC_8BIT: - /* convert from mixer to uncompressed 8 bit mono audio */ - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - len = length; - mix_buffer = p_record_buffer; - rec8_buffer = (unsigned char *)record_buffer; - buf_in16 = (signed short *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = (sample>>8)+0x80; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = (sample>>8)+0x80; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length), 1, p_record); - p_record_length = (length) + p_record_length; - } - break; - - case CODEC_LAW: - len = length; - mix_buffer = p_record_buffer; - rec8_buffer = (unsigned char *)record_buffer; - buf_in8 = (unsigned char *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = (sample>>8)+0x80; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = (sample>>8)+0x80; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length), 1, p_record); - p_record_length = (length) + p_record_length; - } - break; - - } - break; - - case CODEC_LAW: - case CODEC_OFF: /* if no codec is specified, the recorded data will be stored as LAW */ - /* convert from mixer to law */ - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - len = length; - mix_buffer = p_record_buffer; - rec8_buffer = (unsigned char *)record_buffer; - buf_in16 = (signed short *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = audio_s16_to_law[sample & 0xffff]; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = audio_s16_to_law[sample & 0xffff]; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length), 1, p_record); - p_record_length = (length) + p_record_length; - } - break; - - case CODEC_LAW: - len = length; - mix_buffer = p_record_buffer; - rec8_buffer = (unsigned char *)record_buffer; - buf_in8 = (unsigned char *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = audio_s16_to_law[sample & 0xffff]; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(rec8_buffer++) = audio_s16_to_law[sample & 0xffff]; - } - - /* restore (changed) read pointer for further use */ - readp = p_mixer_readp; - - /* now write the rec_buffer to the file */ - if (p_record_skip) - { - p_record_skip -= length; - if (p_record_skip < 0) - p_record_skip = 0; - } else - { - fwrite(record_buffer, (length), 1, p_record); - p_record_length = (length) + p_record_length; - } - break; - } - break; - } - - /* if we have no transmitting relation, we do not need read mixer */ - if (!p_mixer_rel) - { /* nothing mixed to(no rel), so we are just done */ - if (compressed) - { - /* compress to law */ - len = length; - buf_in8 = (unsigned char *)temp_buffer; - buf_in16 = (signed short *)temp_buffer; - buf_out16 = (signed short *)buffer; - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - while(len--) - *(buffer++) = audio_s16_to_law[*(buf_in16++) & 0xffff]; - break; - - case CODEC_LAW: - memcpy(buffer, temp_buffer, length); - break; - - default: - PERROR("Software error: current tone for unmixed & uncompressed, has no codec\n"); - exit(-1); - } - } else - { - /* uncompress law files */ - len = length; - buf_in8 = (unsigned char *)temp_buffer; - buf_in16 = (signed short *)temp_buffer; - buf_out16 = (signed short *)buffer; - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - while(len--) - (*(buf_out16++)) = *(buf_in16++); - break; - - case CODEC_LAW: - while(len--) - (*(buf_out16++)) = audio_law_to_s32[*(buf_in8++)]; - break; - - default: - PERROR("Software error: current tone for unmixed & uncompressed, has no codec\n"); - exit(-1); - } - } - return(length); - } - -// PDEBUG(DEBUG_PORT, "PORT(%s) mixing %d bytes. (readp=%d, PORT_BUFFER=%d)\n", p_name, length, readp, PORT_BUFFER); - /* now we got our stuff and we'll mix it baby */ - - len = length; - mix_buffer = p_mixer_buffer; - if (compressed) - { - /* convert from mixer to compressed law data */ - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - buf_in16 = (signed short *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buffer++) = audio_s16_to_law[sample & 0xffff]; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buffer++) = audio_s16_to_law[sample & 0xffff]; - } - break; - - case CODEC_LAW: - buf_in8 = (unsigned char *)temp_buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buffer++) = audio_s16_to_law[sample & 0xffff]; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buffer++) = audio_s16_to_law[sample & 0xffff]; - } - break; - - default: - PERROR("Software error: current tone for compressed data has no codec\n"); - exit(-1); - } - } else - { - /* convert from mixer to uncompressed 16 bit audio */ - switch(codec_in) - { - case CODEC_MONO: - case CODEC_STEREO: - case CODEC_8BIT: - buf_in16 = (signed short *)temp_buffer; - buf_out16 = (signed short *)buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buf_out16++) = sample; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+*(buf_in16++); - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buf_out16++) = sample; - } - break; - - case CODEC_LAW: - buf_in8 = (unsigned char *)temp_buffer; - buf_out16 = (signed short *)buffer; - if (len+readp >= PORT_BUFFER) /* data hits the buffer end */ - { - len = len+readp-PORT_BUFFER; /* rest to read from buffer start */ - while(readp < PORT_BUFFER) - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buf_out16++) = sample; - } - readp = 0; - } - while(len--) /* write rest */ - { /* mix till buffer end */ - sample = mix_buffer[readp]+audio_law_to_s32[*(buf_in8++)]; - mix_buffer[readp++] = 0; - if (sample < -32767) - sample = -32767; - if (sample > 32767) - sample = 32767; - *(buf_out16++) = sample; - } - break; - - default: - PERROR("Software error: current tone for uncompressed data has no codec\n"); - exit(-1); - } - } - - p_mixer_readp = readp; /* new read pointer */ - +done: return(length); } -/* dummy handler */ +/* port handler: + * process transmission clock */ int Port::handler(void) { + port + return(0); } -- cgit v1.2.3-55-g7522