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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* |
| 2 | * Control interface to front ends. |
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| 3 | * written/copyrights 1997 by Michael Hipp |
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| 4 | */ |
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| 5 | |||
| 6 | #include <stdio.h> |
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| 7 | |||
| 8 | #include <sys/time.h> |
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| 9 | #include <sys/types.h> |
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| 10 | #include <unistd.h> |
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| 11 | |||
| 12 | #include <linux/socket.h> |
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| 13 | /* <sys/socket.h> */ |
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| 14 | |||
| 15 | #include "jukebox/controldata.h" |
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| 16 | #include "mpg123.h" |
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| 17 | |||
| 18 | #define MODE_STOPPED 0 |
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| 19 | #define MODE_PLAYING 1 |
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| 20 | #define MODE_PAUSED 2 |
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| 21 | |||
| 22 | extern FILE *filept; |
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| 23 | extern int tabsel_123[2][3][16]; |
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| 24 | |||
| 25 | int sajber_sendmsg(int type,int data) |
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| 26 | { |
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| 27 | TControlMsg msg; |
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| 28 | msg.type = type; |
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| 29 | msg.data = data; |
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| 30 | return write(1,&msg,sizeof(TControlMsg)); |
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| 31 | } |
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| 32 | |||
| 33 | void control_sajber(struct frame *fr) |
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| 34 | { |
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| 35 | struct timeval timeout; |
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| 36 | fd_set readfds; |
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| 37 | int n; |
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| 38 | int mode = MODE_STOPPED; |
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| 39 | TControlMsg smsg,rmsg; |
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| 40 | struct msghdr msghdr; |
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| 41 | struct m_cmsghdr cmsghdr; |
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| 42 | struct iovec iovec[1]; |
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| 43 | char buf[2]; |
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| 44 | int init = 0; |
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| 45 | int framecnt = 0; |
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| 46 | |||
| 47 | while(1) { |
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| 48 | timeout.tv_sec = 0; |
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| 49 | timeout.tv_usec = 0; |
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| 50 | FD_ZERO(&readfds); |
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| 51 | FD_SET(0,&readfds); |
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| 52 | |||
| 53 | if(mode == MODE_PLAYING) { |
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| 54 | n = select(32,&readfds,NULL,NULL,&timeout); |
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| 55 | if(n == 0) { |
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| 56 | if(!read_frame(fr)) { |
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| 57 | mode = MODE_STOPPED; |
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| 58 | close_stream(); |
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| 59 | sajber_sendmsg(MSG_NEXT,0); |
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| 60 | continue; |
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| 61 | } |
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| 62 | play_frame(init,fr); |
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| 63 | if(init) { |
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| 64 | AudioInfo sai; |
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| 65 | sai.bitrate = tabsel_123[fr->lsf][fr->lay-1][fr->bitrate_index] * 1000; |
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| 66 | sai.frequency = freqs[fr->sampling_frequency]; |
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| 67 | sai.stereo = fr->stereo; |
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| 68 | sai.type = fr->lay; |
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| 69 | sai.sample = 16; |
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| 70 | sajber_sendmsg(MSG_INFO,TRUE); |
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| 71 | write(1,&sai,sizeof(AudioInfo)); |
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| 72 | init = 0; |
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| 73 | |||
| 74 | } |
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| 75 | framecnt++; |
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| 76 | if(!(framecnt & 0xf)) { |
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| 77 | sajber_sendmsg(MSG_FRAMES,framecnt); |
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| 78 | sajber_sendmsg(MSG_POSITION,tell_stream()); |
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| 79 | } |
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| 80 | } |
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| 81 | } |
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| 82 | else { |
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| 83 | while(1) { |
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| 84 | n = select(32,&readfds,NULL,NULL,NULL); |
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| 85 | if(n > 0) |
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| 86 | break; |
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| 87 | } |
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| 88 | } |
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| 89 | if(n < 0) { |
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| 90 | exit(1); |
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| 91 | } |
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| 92 | if(n > 0) { |
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| 93 | int len; |
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| 94 | len = read(0,&rmsg,sizeof(TControlMsg)); |
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| 95 | if(len != sizeof(TControlMsg)) { |
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| 96 | fprintf(stderr,"Error reading control message!\n"); |
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| 97 | exit(1); |
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| 98 | } |
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| 99 | #if 0 |
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| 100 | fprintf(stderr,"%d.%d\n",rmsg.type,rmsg.data); |
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| 101 | #endif |
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| 102 | switch(rmsg.type) { |
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| 103 | case MSG_CTRL: |
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| 104 | switch(rmsg.data) { |
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| 105 | case FORWARD_STEP: |
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| 106 | if(mode != MODE_STOPPED) { |
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| 107 | int i; |
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| 108 | for(i=0;i<16;i++) { |
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| 109 | read_frame(fr); |
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| 110 | if(framecnt && fr->lay == 3) |
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| 111 | set_pointer(512); |
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| 112 | framecnt++; |
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| 113 | } |
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| 114 | } |
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| 115 | sajber_sendmsg(MSG_RESPONSE,FORWARD_STEP); |
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| 116 | break; |
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| 117 | case FORWARD_BEGIN: |
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| 118 | sajber_sendmsg(MSG_RESPONSE,FORWARD_BEGIN); |
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| 119 | break; |
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| 120 | case FORWARD_END: |
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| 121 | sajber_sendmsg(MSG_RESPONSE,FORWARD_END); |
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| 122 | break; |
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| 123 | case REWIND_BEGIN: |
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| 124 | sajber_sendmsg(MSG_RESPONSE,REWIND_BEGIN); |
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| 125 | break; |
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| 126 | case REWIND_STEP: |
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| 127 | if(back_frame(fr,16) == 0) |
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| 128 | framecnt -= 16; |
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| 129 | else |
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| 130 | framecnt = 0; |
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| 131 | sajber_sendmsg(MSG_RESPONSE,REWIND_STEP); |
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| 132 | break; |
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| 133 | case REWIND_END: |
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| 134 | sajber_sendmsg(MSG_RESPONSE,REWIND_END); |
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| 135 | break; |
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| 136 | case PLAY_STOP: |
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| 137 | mode = MODE_STOPPED; |
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| 138 | close_stream(); |
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| 139 | break; |
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| 140 | case PLAY_PAUSE: |
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| 141 | mode = MODE_PAUSED; |
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| 142 | break; |
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| 143 | } |
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| 144 | break; |
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| 145 | case MSG_BUFFER: |
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| 146 | break; |
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| 147 | case MSG_SONG: |
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| 148 | if(mode == MODE_PLAYING) { |
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| 149 | close_stream(); |
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| 150 | mode = MODE_STOPPED; |
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| 151 | } |
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| 152 | |||
| 153 | iovec[0].iov_base = buf; |
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| 154 | iovec[0].iov_len = 2; |
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| 155 | /* |
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| 156 | * this control message 'delivers' a given file |
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| 157 | * descriptor to another process .. |
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| 158 | * the sent descriptor can then be accesed by the |
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| 159 | * child process. |
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| 160 | */ |
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| 161 | cmsghdr.cmsg_len = sizeof(cmsghdr); |
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| 162 | cmsghdr.cmsg_level = SOL_SOCKET; |
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| 163 | cmsghdr.cmsg_type = SCM_RIGHTS; |
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| 164 | |||
| 165 | msghdr.msg_name = NULL; |
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| 166 | msghdr.msg_namelen = 0; |
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| 167 | msghdr.msg_iov = iovec; |
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| 168 | msghdr.msg_iovlen = 1; |
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| 169 | msghdr.msg_control = &cmsghdr; |
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| 170 | msghdr.msg_controllen = sizeof(cmsghdr); |
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| 171 | |||
| 172 | if(recvmsg(0,&msghdr,0) < 0) { |
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| 173 | perror("recvmsg"); |
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| 174 | exit(1); |
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| 175 | } |
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| 176 | |||
| 177 | open_stream(NULL,cmsghdr.fd); |
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| 178 | mode = MODE_PLAYING; |
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| 179 | init = 1; |
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| 180 | framecnt = 0; |
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| 181 | read_frame_init(); |
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| 182 | break; |
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| 183 | case MSG_QUIT: |
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| 184 | exit(0); |
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| 185 | break; |
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| 186 | case MSG_QUERY: |
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| 187 | smsg.type = MSG_RESPONSE; |
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| 188 | smsg.data = FALSE; |
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| 189 | switch(rmsg.data) { |
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| 190 | case QUERY_PLAYING: |
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| 191 | if(mode == MODE_PLAYING) |
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| 192 | smsg.data = TRUE; |
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| 193 | break; |
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| 194 | case QUERY_PAUSED: |
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| 195 | if(mode == MODE_PAUSED) |
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| 196 | smsg.data = TRUE; |
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| 197 | break; |
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| 198 | } |
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| 199 | write(1,&smsg,sizeof(TControlMsg)); |
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| 200 | break; |
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| 201 | case MSG_BUFAHEAD: |
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| 202 | break; |
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| 203 | case MSG_SEEK: |
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| 204 | break; |
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| 205 | case MSG_PRIORITY: |
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| 206 | break; |
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| 207 | case MSG_RELEASE: |
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| 208 | break; |
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| 209 | } |
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| 210 | |||
| 211 | } |
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| 212 | } |
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| 213 | } |
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| 214 | |||
| 215 | void control_tk3play(struct frame *fr) |
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| 216 | { |
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| 217 | |||
| 218 | } |
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| 219 | |||
| 220 |