diff options
Diffstat (limited to 'res/res_fax.c')
| -rw-r--r-- | res/res_fax.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/res/res_fax.c b/res/res_fax.c index 5202e6323..2b3fec194 100644 --- a/res/res_fax.c +++ b/res/res_fax.c @@ -2977,8 +2977,21 @@ static struct ast_frame *fax_gateway_framehook(struct ast_channel *chan, struct /* force silence on the line if T.38 negotiation might be taking place */ if (!ast_tvzero(gateway->ced_timeout_start) || (gateway->t38_state != T38_STATE_UNAVAILABLE && gateway->t38_state != T38_STATE_REJECTED)) { - /* XXX may need to return a silence frame here */ - return &ast_null_frame; + if (f->frametype == AST_FRAME_VOICE && f->subclass.format.id == AST_FORMAT_SLINEAR) { + short silence_buf[f->samples]; + struct ast_frame silence_frame = { + .frametype = AST_FRAME_VOICE, + .data.ptr = silence_buf, + .samples = f->samples, + .datalen = sizeof(silence_buf), + }; + ast_format_set(&silence_frame.subclass.format, AST_FORMAT_SLINEAR, 0); + memset(silence_buf, 0, sizeof(silence_buf)); + + return ast_frisolate(&silence_frame); + } else { + return &ast_null_frame; + } } return f; |