From e969712c6ffdcf3ea7fb66f865da4331a776c139 Mon Sep 17 00:00:00 2001 From: Mark Spencer Date: Fri, 21 Jan 2005 21:27:17 +0000 Subject: [PATCH] Add optional one way playback (bug #3397) git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@4871 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/chan_oss.c | 9 +++++++-- configs/oss.conf.sample | 7 +++++++ 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/channels/chan_oss.c b/channels/chan_oss.c index 4e4b4aa586..0219e360dd 100755 --- a/channels/chan_oss.c +++ b/channels/chan_oss.c @@ -70,6 +70,7 @@ static struct timeval lasttime; static int usecnt; static int silencesuppression = 0; static int silencethreshold = 1000; +static int playbackonly = 0; AST_MUTEX_DEFINE_STATIC(usecnt_lock); @@ -565,9 +566,11 @@ static int oss_write(struct ast_channel *chan, struct ast_frame *f) return 0; /* Stop any currently playing sound */ cursound = -1; - if (!full_duplex) { + if (!full_duplex && !playbackonly) { /* If we're half duplex, we have to switch to read mode - to honor immediate needs if necessary */ + to honor immediate needs if necessary. But if we are in play + back only mode, then we don't switch because the console + is only being used one way -- just to playback something. */ res = soundcard_setinput(1); if (res < 0) { ast_log(LOG_WARNING, "Unable to set device to input mode\n"); @@ -1038,6 +1041,8 @@ int load_module() strncpy(language, v->value, sizeof(language)-1); else if (!strcasecmp(v->name, "extension")) strncpy(exten, v->value, sizeof(exten)-1); + else if (!strcasecmp(v->name, "playbackonly")) + playbackonly = ast_true(v->value); v=v->next; } ast_destroy(cfg); diff --git a/configs/oss.conf.sample b/configs/oss.conf.sample index 25c89ab4bf..9d605ceb5a 100755 --- a/configs/oss.conf.sample +++ b/configs/oss.conf.sample @@ -25,3 +25,10 @@ extension=s ; but your mileage may vary. Use the echo test to evaluate the best setting. ;silencesuppression = yes ;silencethreshold = 1000 +; +; On half-duplex cards, the driver attempts to switch back and forth between +; read and write modes. Unfortunately, this fails sometimes on older hardware. +; To prevent the driver from switching (ie. only play files on your speakers), +; then set the playbackonly option to yes. Default is no. Note this option has +; no effect on full-duplex cards. +;playbackonly=no