mirror of
https://github.com/servalproject/serval-dna.git
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316 lines
8.1 KiB
C
316 lines
8.1 KiB
C
/*
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Copyright (C) 2012 Paul Gardner-Stephen
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <poll.h>
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#include <fcntl.h>
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#include "serval.h"
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char cmd[1024];
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int cmdLen=0;
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int cmdOfs=0;
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int dataBytesExpected=0;
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unsigned char data[65536];
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int dataBytes=0;
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#define STATE_CMD 1
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#define STATE_DATA 2
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int state=STATE_CMD;
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int fd;
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int writeLine(char *msg)
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{
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write(fd,msg,strlen(msg));
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return 0;
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}
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int processChar(int c);
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int autoAnswerP=1;
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int pipeAudio=1;
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int reflectAudio=0;
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int syntheticAudio=0;
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int showReceived=1;
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int interactiveP=1;
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int recordCodec=VOMP_CODEC_PCM;
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int recordCodecBlockSamples=320;
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int recordCodecTimespan=20;
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int callSessionToken=0;
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int fast_audio=0;
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int app_monitor_cli(int argc, const char *const *argv, struct command_line_option *o)
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{
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const char *sid=NULL;
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cli_arg(argc, argv, o, "sid", &sid, NULL, "");
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struct sockaddr_un addr;
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if (!strcasecmp(sid,"reflect")) {
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pipeAudio=1; reflectAudio=1;
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sid="";
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}
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if ( (fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
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perror("socket");
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exit(-1);
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}
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memset(&addr, 0, sizeof(addr));
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addr.sun_family = AF_UNIX;
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addr.sun_path[0]=0;
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snprintf(&addr.sun_path[1],100,"org.servalproject.servald.monitor.socket");
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int len = 1+strlen(&addr.sun_path[1]) + sizeof(addr.sun_family);
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char *p=(char *)&addr;
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printf("last char='%c' %02x\n",p[len-1],p[len-1]);
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if (connect(fd, (struct sockaddr*)&addr, len) == -1) {
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perror("connect");
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exit(-1);
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}
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if (pipeAudio) {
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if (reflectAudio)
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audev=audio_reflector_detect();
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else
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detectAudioDevice();
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char *name=audev?audev->name:NULL;
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if (!name) {
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WHY("Could not detect any audio device. Will not pipe audio.");
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pipeAudio=0;
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}
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}
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struct pollfd fds[128];
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int fdcount=0;
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fds[fdcount].fd=fd;
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fds[fdcount].events=POLLIN;
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fdcount++;
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if (interactiveP) {
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fds[fdcount].fd=STDIN_FILENO;
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fds[fdcount].events=POLLIN;
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fdcount++;
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}
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writeLine("monitor vomp\n");
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writeLine("monitor rhizome\n");
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if (sid!=NULL&&sid[0]) {
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char msg[1024];
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snprintf(msg,1024,"call %s 5551 5552\n",argv[1]);
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writeLine(msg);
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}
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char line[1024];
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/* Allow for up to one second of audio read from the microphone
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to be buffered. This is probably more than we will ever need.
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The primary purpose of the buffer is in fact to handle the fact
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that we are unlikely to ever read exaclty the number of samples
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we need, so we need to keep any left over ones from the previous
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read. */
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int audioRecordBufferBytes=0;
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int audioRecordBufferSize=8000*2;
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unsigned char audioRecordBuffer[8000*2];
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int base_fd_count=fdcount;
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while(1) {
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fdcount=base_fd_count;
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if (audev&&audev->poll_fds) fdcount+=audev->poll_fds(&fds[fdcount],128-fdcount);
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poll(fds,fdcount,1000);
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fcntl(fd,F_SETFL,
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fcntl(fd, F_GETFL, NULL)|O_NONBLOCK);
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if (interactiveP)
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fcntl(STDIN_FILENO,F_SETFL,
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fcntl(STDIN_FILENO, F_GETFL, NULL)|O_NONBLOCK);
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int bytes;
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int i;
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line[0]=0;
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bytes=read(fd,line,1024);
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if (bytes>0)
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for(i=0;i<bytes;i++) processChar(line[i]);
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if (interactiveP) {
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bytes=read(STDIN_FILENO,line,1024);
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if (bytes>0) {
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line[bytes]=0;
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printf("< %s",line);
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write(fd,line,bytes);
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}
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}
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if (audev&&audev->read)
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{
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WHY("about to read");
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int bytesRead=audev->read(&audioRecordBuffer[audioRecordBufferBytes],
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audioRecordBufferSize-audioRecordBufferBytes);
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WHY("read");
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if (bytesRead>0) audioRecordBufferBytes+=bytesRead;
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/* 8KHz 16 bit samples = 16000 bytes per second.
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Thus one 1ms of audio = 16 bytes. */
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int audioRecordBufferOffset=0;
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while ((audioRecordBufferBytes-audioRecordBufferOffset)
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>recordCodecTimespan*16) {
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/* encode and deliver audio block to servald via monitor interface */
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encodeAndDispatchRecordedAudio(fd,callSessionToken,recordCodec,
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&audioRecordBuffer[audioRecordBufferOffset],
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recordCodecTimespan*16);
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WHY("sample block sent");
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/* skip over the samples we have already processed */
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audioRecordBufferOffset+=recordCodecTimespan*16;
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}
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/* copy the remaining buffered bytes down and correct buffer length */
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if (audioRecordBufferOffset<0) audioRecordBufferOffset=0;
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if (audioRecordBufferOffset>audioRecordBufferBytes)
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audioRecordBufferOffset=audioRecordBufferBytes;
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bcopy(&audioRecordBuffer[audioRecordBufferOffset],
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&audioRecordBuffer[0],
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audioRecordBufferBytes-audioRecordBufferOffset);
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audioRecordBufferBytes-=audioRecordBufferOffset;
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}
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fcntl(fd,F_SETFL,
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fcntl(fd, F_GETFL, NULL)&~O_NONBLOCK);
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fcntl(STDIN_FILENO,F_SETFL,
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fcntl(STDIN_FILENO, F_GETFL, NULL)&~O_NONBLOCK);
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}
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return 0;
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}
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int counter=0;
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int callState=0;
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int processLine(char *cmd,unsigned char *data,int dataLen)
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{
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int l_id,r_id,l_state,r_state,codec;
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long long start_time,end_time;
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if (showReceived) {
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printf("> %s\n",cmd);
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if (data) {
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int i,j;
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for(i=0;i<dataLen;i+=16) {
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printf(" %04x :",i);
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for(j=0;j<16;j++)
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if (i+j<dataLen) printf(" %02x",data[i+j]); else printf(" ");
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printf(" ");
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for(j=0;j<16;j++)
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if (i+j<dataLen) {
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if (data[i+j]>=0x20&&data[i+j]<0x7e)
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printf("%c",data[i+j]); else printf(".");
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}
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printf("\n");
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}
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}
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}
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if (sscanf(cmd,"AUDIOPACKET:%x:%x:%d:%d:%d:%lld:%lld",
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&l_id,&r_id,&l_state,&r_state,
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&codec,&start_time,&end_time)==7)
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{
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if (pipeAudio&&audev&&fast_audio) {
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bufferAudioForPlayback(codec,start_time,end_time,data,dataLen);
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}
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}
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char msg[1024];
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if (sscanf(cmd,"CALLSTATUS:%x:%x:%d:%d:%d",
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&l_id,&r_id,&l_state,&r_state,&fast_audio)==5)
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{
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if (l_state<5&&l_id&&pipeAudio) {
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// Take control of audio for this call, and let the java side know
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snprintf(msg,1024,"FASTAUDIO:%x:1\n",l_id);
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writeLine(msg);
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}
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if (l_state==4&&autoAnswerP) {
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// We are ringing, so pickup
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sprintf(msg,"pickup %x\n",l_id);
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writeLine(msg);
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}
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if (l_state==5) {
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if (fast_audio) {
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startAudio();
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}
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callSessionToken=l_id;
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} else {
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stopAudio();
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callSessionToken=0;
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}
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callState=l_state;
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}
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if (sscanf(cmd,"KEEPALIVE:%x",&l_id)==1) {
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if (callState==5&&syntheticAudio) {
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/* Send synthetic audio packet */
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char buffer[1024];
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sprintf(buffer,"*320:AUDIO:%x:8\n"
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"%08d pasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456"
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"qwertyuiopasdfghjklzxcvbnm123456",l_id,counter++);
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writeLine(buffer);
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printf("< *320:AUDIO:%x:8\\n<320 bytes>\n",l_id);
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}
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}
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cmd[0]=0;
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cmdLen=0;
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dataBytes=0;
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dataBytesExpected=0;
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state=STATE_CMD;
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return 0;
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}
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int processChar(int c)
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{
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switch(state) {
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case STATE_CMD:
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if (c!='\n') {
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if (cmdLen<1000) {
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cmd[cmdLen++]=c;
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}
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} else {
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if (!cmdLen) return 0;
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cmd[cmdLen]=0;
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if (sscanf(cmd,"*%d:%n",&dataBytesExpected,&cmdOfs)==1) {
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if (dataBytesExpected<0) dataBytesExpected=0;
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if (dataBytesExpected>65535) dataBytesExpected=65535;
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state=STATE_DATA;
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} else {
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processLine(cmd,NULL,0);
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cmdLen=0;
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}
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}
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break;
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case STATE_DATA:
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if (dataBytes<dataBytesExpected)
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data[dataBytes++]=c;
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if (dataBytes>=dataBytesExpected) {
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processLine(&cmd[cmdOfs],data,dataBytes);
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cmdLen=0;
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}
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}
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return 0;
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}
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