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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: https://origsvn.digium.com/svn/asterisk/trunk@153365 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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@@ -48,6 +48,52 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#define DEFAULT_AGC_LEVEL 8000.0
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/*** DOCUMENTATION
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<function name="AGC" language="en_US">
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<synopsis>
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Apply automatic gain control to audio on a channel.
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</synopsis>
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<syntax>
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<parameter name="channeldirection" required="true">
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<para>This can be either <literal>rx</literal> or <literal>tx</literal></para>
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</parameter>
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</syntax>
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<description>
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<para>The AGC function will apply automatic gain control to the audio on the
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channel that it is executed on. Using <literal>rx</literal> for audio recieved
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and <literal>tx</literal> for audio transmitted to the channel. When using this
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function you set a target audio level. It is primarly intended for use with
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analog lines, but could be useful for other channels as well. The target volume
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is set with a number between <literal>1-32768</literal>. The larger the number
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the louder (more gain) the channel will recieve.</para>
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<para>Examples:</para>
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<para>exten => 1,1,Set(AGC(rx)=8000)</para>
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<para>exten => 1,2,Set(AGC(tx)=off)</para>
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</description>
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</function>
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<function name="DENOISE" language="en_US">
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<synopsis>
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Apply noise reduction to audio on a channel.
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</synopsis>
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<syntax>
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<parameter name="channeldirection" required="true">
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<para>This can be either <literal>rx</literal> or <literal>tx</literal>
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the values that can be set to this are either <literal>on</literal> and
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<literal>off</literal></para>
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</parameter>
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</syntax>
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<description>
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<para>The DENOISE function will apply noise reduction to audio on the channel
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that it is executed on. It is very useful for noisy analog lines, especially
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when adjusting gains or using AGC. Use <literal>rx</literal> for audio received from the channel
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and <literal>tx</literal> to apply the filter to the audio being sent to the channel.</para>
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<para>Examples:</para>
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<para>exten => 1,1,Set(DENOISE(rx)=on)</para>
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<para>exten => 1,2,Set(DENOISE(tx)=off)</para>
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</description>
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</function>
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***/
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struct speex_direction_info {
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SpeexPreprocessState *state; /*!< speex preprocess state object */
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int agc; /*!< audio gain control is enabled or not */
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@@ -290,39 +336,12 @@ static int speex_read(struct ast_channel *chan, const char *cmd, char *data, cha
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static struct ast_custom_function agc_function = {
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.name = "AGC",
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.synopsis = "Apply automatic gain control to audio on a channel",
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.desc =
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" The AGC function will apply automatic gain control to audio on the channel\n"
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"that this function is executed on. Use rx for audio received from the channel\n"
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"and tx to apply AGC to the audio being sent to the channel. When using this\n"
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"function, you set a target audio level. It is primarily intended for use with\n"
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"analog lines, but could be useful for other channels, as well. The target volume\n"
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"is set with a number between 1 and 32768. Larger numbers are louder.\n"
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" Example Usage:\n"
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" Set(AGC(rx)=8000)\n"
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" Set(AGC(tx)=8000)\n"
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" Set(AGC(rx)=off)\n"
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" Set(AGC(tx)=off)\n"
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"",
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.write = speex_write,
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.read = speex_read
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};
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static struct ast_custom_function denoise_function = {
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.name = "DENOISE",
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.synopsis = "Apply noise reduction to audio on a channel",
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.desc =
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" The DENOISE function will apply noise reduction to audio on the channel\n"
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"that this function is executed on. It is especially useful for noisy analog\n"
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"lines, especially when adjusting gains or using AGC. Use rx for audio\n"
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"received from the channel and tx to apply the filter to the audio being sent\n"
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"to the channel.\n"
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" Example Usage:\n"
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" Set(DENOISE(rx)=on)\n"
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" Set(DENOISE(tx)=on)\n"
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" Set(DENOISE(rx)=off)\n"
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" Set(DENOISE(tx)=off)\n"
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"",
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.write = speex_write,
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.read = speex_read
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};
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