First pass at LPC10

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@3785 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/rtp.c b/rtp.c
index 41f1aef6b721400c39295b17b43a71a3e6abd501..60951008b39eac12a2c84f7cb1b73d7e2d2c190c 100755 (executable)
--- a/rtp.c
+++ b/rtp.c
@@ -549,8 +549,12 @@ struct ast_frame *ast_rtp_read(struct ast_rtp *rtp)
                        rtp->f.samples = g723_samples(rtp->f.data, rtp->f.datalen);
                        break;
                case AST_FORMAT_SPEEX:
-                       rtp->f.samples = 160;
                        /* assumes that the RTP packet contained one Speex frame */
+               rtp->f.samples = 160;
+                       break;
+               case AST_FORMAT_LPC10:
+                   rtp->f.samples = 22 * 8;
+                       rtp->f.samples += (((char *)(f->data))[7] & 0x1) * 8;
                        break;
                default:
                        ast_log(LOG_NOTICE, "Unable to calculate samples for format %s\n", ast_getformatname(rtp->f.subclass));
@@ -1082,6 +1086,11 @@ static int ast_rtp_raw_write(struct ast_rtp *rtp, struct ast_frame *f, int codec
                    pred = rtp->lastts + 160;
                        /* assumes that the RTP packet contains one Speex frame */
                        break;
+               case AST_FORMAT_LPC10:
+                       /* assumes that the RTP packet contains one LPC10 frame */
+                   pred = rtp->lastts + 22 * 8;
+                       pred += (((char *)(f->data))[7] & 0x1) * 8;
+                       break;
                default:
                        ast_log(LOG_WARNING, "Not sure about timestamp format for codec format %s\n", ast_getformatname(f->subclass));
                }
@@ -1245,6 +1254,7 @@ int ast_rtp_write(struct ast_rtp *rtp, struct ast_frame *_f)
        case AST_FORMAT_H261:
        case AST_FORMAT_H263:
        case AST_FORMAT_G723_1:
+       case AST_FORMAT_LPC10:
        case AST_FORMAT_SPEEX:
                /* Don't buffer outgoing frames; send them one-per-packet: */
                if (_f->offset < hdrlen) {