FreeCalypso > hg > freecalypso-sw
diff rvinterf/asyncshell/tchplay.c @ 1030:194967e11b2b
fc-shell: tch record and tch play reworked for libgsm-compatible file format
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 31 May 2016 18:39:06 +0000 |
| parents | 333015c662bc |
| children |
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--- a/rvinterf/asyncshell/tchplay.c Tue May 31 01:53:04 2016 +0000 +++ b/rvinterf/asyncshell/tchplay.c Tue May 31 18:39:06 2016 +0000 @@ -31,13 +31,13 @@ fill_uplink(msgout) void (*msgout)(); { - u_char sendpkt[35]; + u_char readbytes[33], sendpkt[35]; int cc; sendpkt[0] = RVT_TCH_HEADER; sendpkt[1] = TCH_ULBITS_REQ; while (queued_frames < QUEUE_LIMIT) { - cc = fread(sendpkt + 2, 1, 33, gsm_data_file); + cc = fread(readbytes, 1, 33, gsm_data_file); if (cc < 33) { if (cc) msgout("TCH UL: extra bytes at the end of the file"); @@ -45,6 +45,12 @@ gsm_data_file = 0; return; } + if ((readbytes[0] & 0xF0) != 0xD0) { + msgout("TCH UL: bad file input, play aborted"); + gsm_data_file = 0; + return; + } + gsm0610_libgsm_to_tidsp(readbytes, sendpkt + 2); send_pkt_to_target(sendpkt, 35); queued_frames++; }