diff options
| -rwxr-xr-x | channel.c | 13 | ||||
| -rwxr-xr-x | include/asterisk/channel.h | 3 |
2 files changed, 16 insertions, 0 deletions
@@ -726,6 +726,7 @@ int ast_activate_generator(struct ast_channel *chan, struct ast_generator *gen, chan->generator->release(chan, chan->generatordata); chan->generatordata = NULL; } + ast_prod(chan); if ((chan->generatordata = gen->alloc(chan, params))) { chan->generator = gen; } else { @@ -1210,6 +1211,18 @@ static int do_senddigit(struct ast_channel *chan, char digit) return 0; } +int ast_prod(struct ast_channel *chan) +{ + struct ast_frame a = { AST_FRAME_VOICE }; + char nothing[128]; + /* Send an empty audio frame to get things moving */ + if (chan->_state != AST_STATE_UP) { + a.subclass = chan->pvt->rawwriteformat; + a.data = nothing + AST_FRIENDLY_OFFSET; + } + return 0; +} + int ast_write(struct ast_channel *chan, struct ast_frame *fr) { int res = -1; diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h index 73ecc8b29..da849c899 100755 --- a/include/asterisk/channel.h +++ b/include/asterisk/channel.h @@ -462,6 +462,9 @@ struct ast_frame *ast_read(struct ast_channel *chan); */ int ast_write(struct ast_channel *chan, struct ast_frame *frame); +/* Send empty audio to prime a channel driver */ +int ast_prod(struct ast_channel *chan); + //! Sets read format on channel chan /*! * \param chan channel to change |