-

[sound-tools/hdrec.git] / hdrec.c

diff --git a/hdrec.c b/hdrec.c
index 42d86a7..c6945f5 100644 (file)
--- a/hdrec.c
+++ b/hdrec.c
@@ -11,6 +11,8 @@
 #include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <sys/select.h>
+#include <sys/time.h>
 #include <sys/soundcard.h>
 #include <fcntl.h>
 #include <unistd.h>
@@ -23,6 +25,8 @@ int usage(void) {
        printf("usage:\n\n");
        printf("-h \t\t print this help\n");
        printf("-i \t\t use/print file info\n");
+       printf("-R \t\t play reversed :)\n");
+       printf("-d <device> \t sound device (eg: /dev/dsp)\n");
        printf("-r <file> \t record to <file>\n");
        printf("-p <file> \t play from <file>\n");
        printf("-s \t\t stereo\n");
@@ -47,10 +51,15 @@ int main(int argc,char **argv) {
        char play_file[MAX_C_FILE];
        dsp_set set;
        unsigned char *buf;
+       unsigned char *buf2=NULL;
        unsigned char print_info=0;
        unsigned char info[8];
        int info_int;
        int tmp;
+       char is_wav=0;
+       fd_set read_fds,write_fds;
+       struct timeval fds_tv;
+       char c;
 
        /* defaults */
        strcpy(device,"");
@@ -69,13 +78,16 @@ int main(int argc,char **argv) {
                                        print_info=1;
                                        break;
                                case 'r':
-                                       mode=RECORD;
+                                       mode|=RECORD;
                                        strcpy(record_file,argv[++i]);
                                        break;
                                case 'p':
-                                       mode=PLAY;
+                                       mode|=PLAY;
                                        strcpy(play_file,argv[++i]);
                                        break;
+                               case 'R':
+                                       mode|=REVERSED;
+                                       break;
                                case 's':
                                        set.channel=STEREO;
                                        break;
@@ -180,17 +192,46 @@ int main(int argc,char **argv) {
                perror("malloc");
                return -1;
        }
+       if((mode&RECORD) && (mode&PLAY)) {
+               if((buf2=malloc(set.bufsize*sizeof(unsigned char)))==NULL) {
+                       printf("allocating 2nd memory failed :(\n");
+                       perror("malloc");
+                       return -1;
+               }
+       }
 
-       if(mode&PLAY) {
+       if((mode&PLAY) && (!(mode&RECORD))) {
                printf("playing file %s ...\n",play_file);
+               if(mode&REVERSED) printf("but we do it reversed!\n");
                rw=1;
-               while(rw) {
-                       rw=read(pfile_fd,buf,set.bufsize);
-                       write(audio_fd,buf,set.bufsize);
+               if(!(mode&REVERSED)) {
+                       while(rw) {
+                               rw=read(pfile_fd,buf,set.bufsize);
+                               write(audio_fd,buf,set.bufsize);
+                       }
+               } else {
+                       i=0;
+                       read(pfile_fd,info,4);
+                       if(!strncmp(info,"RIFF",4)) {
+                               is_wav=1;
+                               printf("\nassuming wav file according to header ...\n");
+                               i=44;
+                       }
+                       lseek(pfile_fd,0,SEEK_SET);
+                       tmp=lseek(pfile_fd,0,SEEK_END);
+                       // if(set.format==AFMT_U8) i=set.channel;
+                       // if(set.format==AFMT_S16_LE) i=set.channel*2;
+                       for(j=0;j<(tmp-i);j++) {
+                               for(k=0;k<set.bufsize;k++) {
+                                       lseek(pfile_fd,tmp-(j+1)*set.bufsize+k,SEEK_SET);
+                                       read(pfile_fd,buf+k,1);
+                               }
+                               write(audio_fd,buf,set.bufsize);
+                       }
                }
        }
 
-       if(mode&RECORD) {
+       if((mode&RECORD) && (!(mode&PLAY))) {
                printf("recording to file %s ...\n",record_file);
                rw=1;
                while(rw) {
@@ -199,6 +240,42 @@ int main(int argc,char **argv) {
                }
        }
 
+       if((mode&RECORD) && (mode&PLAY)) {
+               FD_ZERO(&read_fds);
+               FD_ZERO(&write_fds);
+               /* read_fds */
+               FD_SET(0,&read_fds);
+               FD_SET(pfile_fd,&read_fds);
+               FD_SET(audio_fd,&read_fds);
+               /* write_fds */
+               FD_SET(sfile_fd,&write_fds);
+               FD_SET(audio_fd,&write_fds);
+               while(c!='q') {
+                       fds_tv.tv_sec=0;
+                       fds_tv.tv_usec=1000;
+                       k=select(sfile_fd+1,&read_fds,&write_fds,NULL,&fds_tv);
+                       if(k==0) printf("itz zZzero :p\n");
+                       if(k) {
+                               printf("returned after %ld usecs\n",1000-fds_tv.tv_usec);
+                               if(FD_ISSET(0,&read_fds)) {
+                                       read(0,&c,1);
+                               }
+                               if(FD_ISSET(pfile_fd,&read_fds)) {
+                                       read(pfile_fd,buf2,set.bufsize);
+                               }
+                               if(FD_ISSET(audio_fd,&read_fds)) {
+                                       read(audio_fd,buf,set.bufsize);
+                               }
+                               if(FD_ISSET(sfile_fd,&write_fds)) {
+                                       write(sfile_fd,buf,set.bufsize);
+                               }
+                               if(FD_ISSET(audio_fd,&write_fds)) {
+                                       write(audio_fd,buf2,set.bufsize);
+                               }
+                       }
+               }
+       }
+
        if(mode&CONVERT) {
                if((tmp=lseek(pfile_fd,0,SEEK_END))==-1) {
                        printf("cannot determine filesize :(\n");