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<h1>snd_pcm_extplug_callback Struct Reference<br>
<small>
[<a class="el" href="group___p_c_m___ext_plug.html">External Filter plugin SDK</a>]</small>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="group___p_c_m.html#g842d603aa3a4bc5b4596b42490104da3">snd_pcm_sframes_t</a>(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html#d5dfcb0803420d056d08124b57a38822">transfer</a> )(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, const <a class="el" href="struct__snd__pcm__channel__area.html">snd_pcm_channel_area_t</a> *dst_areas, <a class="el" href="group___p_c_m.html#g2c6283616ba424092089264ae7e193e6">snd_pcm_uframes_t</a> dst_offset, const <a class="el" href="struct__snd__pcm__channel__area.html">snd_pcm_channel_area_t</a> *src_areas, <a class="el" href="group___p_c_m.html#g2c6283616ba424092089264ae7e193e6">snd_pcm_uframes_t</a> src_offset, <a class="el" href="group___p_c_m.html#g2c6283616ba424092089264ae7e193e6">snd_pcm_uframes_t</a> size)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html#ec5493555886926e4f579d341c3dc5dd">close</a> )(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html#97d0bfcf60ed0e1b14593166f9a34d9d">hw_params</a> )(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, <a class="el" href="group___p_c_m.html#g232a2e2b6bb7bb2dca2885eec2e095b3">snd_pcm_hw_params_t</a> *params)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html#6071524a7ad6af297cc6c097faf1420f">hw_free</a> )(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html#2443752fbce22a69b0d0b5a67f2b6f9c">dump</a> )(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, <a class="el" href="group___output.html#gfcb4f6ed600e8daf18d5d5d8623dda50">snd_output_t</a> *out)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structsnd__pcm__extplug__callback.html#8e2728cda8ea1f5c7401fb50c62883d8">init</a> )(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext)</td></tr>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
Callback table of extplug
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<hr><h2>Field Documentation</h2>
<a class="anchor" name="ec5493555886926e4f579d341c3dc5dd"></a><!-- doxytag: member="snd_pcm_extplug_callback::close" ref="ec5493555886926e4f579d341c3dc5dd" args=")(snd_pcm_extplug_t *ext)" -->
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<td class="memname">int(* <a class="el" href="structsnd__pcm__extplug__callback.html#ec5493555886926e4f579d341c3dc5dd">snd_pcm_extplug_callback::close</a>)(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext) </td>
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close the PCM; optional
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<a class="anchor" name="2443752fbce22a69b0d0b5a67f2b6f9c"></a><!-- doxytag: member="snd_pcm_extplug_callback::dump" ref="2443752fbce22a69b0d0b5a67f2b6f9c" args=")(snd_pcm_extplug_t *ext, snd_output_t *out)" -->
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<td class="memname">void(* <a class="el" href="structsnd__pcm__extplug__callback.html#2443752fbce22a69b0d0b5a67f2b6f9c">snd_pcm_extplug_callback::dump</a>)(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, <a class="el" href="group___output.html#gfcb4f6ed600e8daf18d5d5d8623dda50">snd_output_t</a> *out) </td>
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dump; optional
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<a class="anchor" name="6071524a7ad6af297cc6c097faf1420f"></a><!-- doxytag: member="snd_pcm_extplug_callback::hw_free" ref="6071524a7ad6af297cc6c097faf1420f" args=")(snd_pcm_extplug_t *ext)" -->
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<td class="memname">int(* <a class="el" href="structsnd__pcm__extplug__callback.html#6071524a7ad6af297cc6c097faf1420f">snd_pcm_extplug_callback::hw_free</a>)(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext) </td>
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hw_free; optional
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<a class="anchor" name="97d0bfcf60ed0e1b14593166f9a34d9d"></a><!-- doxytag: member="snd_pcm_extplug_callback::hw_params" ref="97d0bfcf60ed0e1b14593166f9a34d9d" args=")(snd_pcm_extplug_t *ext, snd_pcm_hw_params_t *params)" -->
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<td class="memname">int(* <a class="el" href="structsnd__pcm__extplug__callback.html#97d0bfcf60ed0e1b14593166f9a34d9d">snd_pcm_extplug_callback::hw_params</a>)(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, <a class="el" href="group___p_c_m.html#g232a2e2b6bb7bb2dca2885eec2e095b3">snd_pcm_hw_params_t</a> *params) </td>
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hw_params; optional
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<a class="anchor" name="8e2728cda8ea1f5c7401fb50c62883d8"></a><!-- doxytag: member="snd_pcm_extplug_callback::init" ref="8e2728cda8ea1f5c7401fb50c62883d8" args=")(snd_pcm_extplug_t *ext)" -->
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<td class="memname">int(* <a class="el" href="structsnd__pcm__extplug__callback.html#8e2728cda8ea1f5c7401fb50c62883d8">snd_pcm_extplug_callback::init</a>)(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext) </td>
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init; optional initialization called at prepare or reset
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<a class="anchor" name="d5dfcb0803420d056d08124b57a38822"></a><!-- doxytag: member="snd_pcm_extplug_callback::transfer" ref="d5dfcb0803420d056d08124b57a38822" args=")(snd_pcm_extplug_t *ext, const snd_pcm_channel_area_t *dst_areas, snd_pcm_uframes_t dst_offset, const snd_pcm_channel_area_t *src_areas, snd_pcm_uframes_t src_offset, snd_pcm_uframes_t size)" -->
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<td class="memname"><a class="el" href="group___p_c_m.html#g842d603aa3a4bc5b4596b42490104da3">snd_pcm_sframes_t</a>(* <a class="el" href="structsnd__pcm__extplug__callback.html#d5dfcb0803420d056d08124b57a38822">snd_pcm_extplug_callback::transfer</a>)(<a class="el" href="structsnd__pcm__extplug.html">snd_pcm_extplug_t</a> *ext, const <a class="el" href="struct__snd__pcm__channel__area.html">snd_pcm_channel_area_t</a> *dst_areas, <a class="el" href="group___p_c_m.html#g2c6283616ba424092089264ae7e193e6">snd_pcm_uframes_t</a> dst_offset, const <a class="el" href="struct__snd__pcm__channel__area.html">snd_pcm_channel_area_t</a> *src_areas, <a class="el" href="group___p_c_m.html#g2c6283616ba424092089264ae7e193e6">snd_pcm_uframes_t</a> src_offset, <a class="el" href="group___p_c_m.html#g2c6283616ba424092089264ae7e193e6">snd_pcm_uframes_t</a> size) </td>
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transfer between source and destination; this is a required callback
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<hr>The documentation for this struct was generated from the following file:<ul>
<li>/builddir/build/BUILD/alsa-lib-1.0.17a/include/<a class="el" href="pcm__extplug_8h-source.html">pcm_extplug.h</a></ul>
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