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Add "prod" function, to get audio moving

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@856 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2003-04-16 02:47:03 +00:00
parent 7ba7ec9c97
commit 40fe8aa533
2 changed files with 16 additions and 0 deletions
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13
channel.c
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@@ -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;

3
include/asterisk/channel.h
View File

@@ -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