diff options
author | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-11-01 21:10:07 +0000 |
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committer | russell <russell@f38db490-d61c-443f-a65b-d21fe96a405b> | 2008-11-01 21:10:07 +0000 |
commit | b1f91b97d2085cc845d0f57bd9907de50c995105 (patch) | |
tree | 9c836ac808552d20be6bd2baa3a3c29f642eda53 /funcs/func_speex.c | |
parent | c5d084051f21e943fcbcc347fc80b166885f298d (diff) |
Merge changes from team/group/appdocsxml
This commit introduces the first phase of an effort to manage documentation of the
interfaces in Asterisk in an XML format. Currently, a new format is available for
applications and dialplan functions. A good number of conversions to the new format
are also included.
For more information, see the following message to asterisk-dev:
http://lists.digium.com/pipermail/asterisk-dev/2008-October/034968.html
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@153365 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'funcs/func_speex.c')
-rw-r--r-- | funcs/func_speex.c | 73 |
1 files changed, 46 insertions, 27 deletions
diff --git a/funcs/func_speex.c b/funcs/func_speex.c index 4ddfab80b..6858cf7a3 100644 --- a/funcs/func_speex.c +++ b/funcs/func_speex.c @@ -48,6 +48,52 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$") #define DEFAULT_AGC_LEVEL 8000.0 +/*** DOCUMENTATION + <function name="AGC" language="en_US"> + <synopsis> + Apply automatic gain control to audio on a channel. + </synopsis> + <syntax> + <parameter name="channeldirection" required="true"> + <para>This can be either <literal>rx</literal> or <literal>tx</literal></para> + </parameter> + </syntax> + <description> + <para>The AGC function will apply automatic gain control to the audio on the + channel that it is executed on. Using <literal>rx</literal> for audio recieved + and <literal>tx</literal> for audio transmitted to the channel. When using this + function you set a target audio level. It is primarly intended for use with + analog lines, but could be useful for other channels as well. The target volume + is set with a number between <literal>1-32768</literal>. The larger the number + the louder (more gain) the channel will recieve.</para> + <para>Examples:</para> + <para>exten => 1,1,Set(AGC(rx)=8000)</para> + <para>exten => 1,2,Set(AGC(tx)=off)</para> + </description> + </function> + <function name="DENOISE" language="en_US"> + <synopsis> + Apply noise reduction to audio on a channel. + </synopsis> + <syntax> + <parameter name="channeldirection" required="true"> + <para>This can be either <literal>rx</literal> or <literal>tx</literal> + the values that can be set to this are either <literal>on</literal> and + <literal>off</literal></para> + </parameter> + </syntax> + <description> + <para>The DENOISE function will apply noise reduction to audio on the channel + that it is executed on. It is very useful for noisy analog lines, especially + when adjusting gains or using AGC. Use <literal>rx</literal> for audio received from the channel + and <literal>tx</literal> to apply the filter to the audio being sent to the channel.</para> + <para>Examples:</para> + <para>exten => 1,1,Set(DENOISE(rx)=on)</para> + <para>exten => 1,2,Set(DENOISE(tx)=off)</para> + </description> + </function> + ***/ + struct speex_direction_info { SpeexPreprocessState *state; /*!< speex preprocess state object */ int agc; /*!< audio gain control is enabled or not */ @@ -290,39 +336,12 @@ static int speex_read(struct ast_channel *chan, const char *cmd, char *data, cha static struct ast_custom_function agc_function = { .name = "AGC", - .synopsis = "Apply automatic gain control to audio on a channel", - .desc = - " The AGC function will apply automatic gain control to audio on the channel\n" - "that this function is executed on. Use rx for audio received from the channel\n" - "and tx to apply AGC to the audio being sent to the channel. When using this\n" - "function, you set a target audio level. It is primarily intended for use with\n" - "analog lines, but could be useful for other channels, as well. The target volume\n" - "is set with a number between 1 and 32768. Larger numbers are louder.\n" - " Example Usage:\n" - " Set(AGC(rx)=8000)\n" - " Set(AGC(tx)=8000)\n" - " Set(AGC(rx)=off)\n" - " Set(AGC(tx)=off)\n" - "", .write = speex_write, .read = speex_read }; static struct ast_custom_function denoise_function = { .name = "DENOISE", - .synopsis = "Apply noise reduction to audio on a channel", - .desc = - " The DENOISE function will apply noise reduction to audio on the channel\n" - "that this function is executed on. It is especially useful for noisy analog\n" - "lines, especially when adjusting gains or using AGC. Use rx for audio\n" - "received from the channel and tx to apply the filter to the audio being sent\n" - "to the channel.\n" - " Example Usage:\n" - " Set(DENOISE(rx)=on)\n" - " Set(DENOISE(tx)=on)\n" - " Set(DENOISE(rx)=off)\n" - " Set(DENOISE(tx)=off)\n" - "", .write = speex_write, .read = speex_read }; |