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<a href="#pub-attribs">Data Fields</a> </div>
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<div class="title">AVHWAccel Struct Reference<div class="ingroups"><a class="el" href="group__libavc.html">libavcodec</a> » <a class="el" href="group__lavc__core.html">Core functions/structures.</a> » <a class="el" href="group__lavc__hwaccel.html">AVHWAccel</a></div></div> </div>
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<p><code>#include <<a class="el" href="avcodec_8h_source.html">libavcodec/avcodec.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:a9cc735be128cb62ff4cb594d3e3bdb92"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a9cc735be128cb62ff4cb594d3e3bdb92">name</a></td></tr>
<tr class="memdesc:a9cc735be128cb62ff4cb594d3e3bdb92"><td class="mdescLeft"> </td><td class="mdescRight">Name of the hardware accelerated codec. <a href="#a9cc735be128cb62ff4cb594d3e3bdb92">More...</a><br /></td></tr>
<tr class="separator:a9cc735be128cb62ff4cb594d3e3bdb92"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af962ad3e15697454ba312d1254e5a423"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="group__lavu__misc.html#ga9a84bba4713dfced21a1a56163be1f48">AVMediaType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#af962ad3e15697454ba312d1254e5a423">type</a></td></tr>
<tr class="memdesc:af962ad3e15697454ba312d1254e5a423"><td class="mdescLeft"> </td><td class="mdescRight">Type of codec implemented by the hardware accelerator. <a href="#af962ad3e15697454ba312d1254e5a423">More...</a><br /></td></tr>
<tr class="separator:af962ad3e15697454ba312d1254e5a423"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3c93d40193e9178eb7408295c6c2b2f2"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="group__lavc__core.html#gaadca229ad2c20e060a14fec08a5cc7ce">AVCodecID</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a3c93d40193e9178eb7408295c6c2b2f2">id</a></td></tr>
<tr class="memdesc:a3c93d40193e9178eb7408295c6c2b2f2"><td class="mdescLeft"> </td><td class="mdescRight">Codec implemented by the hardware accelerator. <a href="#a3c93d40193e9178eb7408295c6c2b2f2">More...</a><br /></td></tr>
<tr class="separator:a3c93d40193e9178eb7408295c6c2b2f2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac5692f044266af8c1c33b7ac549df338"><td class="memItemLeft" align="right" valign="top">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#ac5692f044266af8c1c33b7ac549df338">pix_fmt</a></td></tr>
<tr class="memdesc:ac5692f044266af8c1c33b7ac549df338"><td class="mdescLeft"> </td><td class="mdescRight">Supported pixel format. <a href="#ac5692f044266af8c1c33b7ac549df338">More...</a><br /></td></tr>
<tr class="separator:ac5692f044266af8c1c33b7ac549df338"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa1da71a1cc27b60294023a893759e60a"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#aa1da71a1cc27b60294023a893759e60a">capabilities</a></td></tr>
<tr class="memdesc:aa1da71a1cc27b60294023a893759e60a"><td class="mdescLeft"> </td><td class="mdescRight">Hardware accelerated codec capabilities. <a href="#aa1da71a1cc27b60294023a893759e60a">More...</a><br /></td></tr>
<tr class="separator:aa1da71a1cc27b60294023a893759e60a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaca69ddfacfa72b642007b5ab4b89424"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structAVHWAccel.html">AVHWAccel</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#aaca69ddfacfa72b642007b5ab4b89424">next</a></td></tr>
<tr class="separator:aaca69ddfacfa72b642007b5ab4b89424"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0b800e0b878f67b81d17d269249b8a0f"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a0b800e0b878f67b81d17d269249b8a0f">alloc_frame</a> )(<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, <a class="el" href="structAVFrame.html">AVFrame</a> *<a class="el" href="extract__mvs_8c.html#ad7d33d579a8d4241a5e643e39287a209">frame</a>)</td></tr>
<tr class="memdesc:a0b800e0b878f67b81d17d269249b8a0f"><td class="mdescLeft"> </td><td class="mdescRight">Allocate a custom buffer. <a href="#a0b800e0b878f67b81d17d269249b8a0f">More...</a><br /></td></tr>
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<tr class="memitem:a40b92f781dbaaecc9c82f636b790629b"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a40b92f781dbaaecc9c82f636b790629b">start_frame</a> )(<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, const uint8_t *buf, uint32_t buf_size)</td></tr>
<tr class="memdesc:a40b92f781dbaaecc9c82f636b790629b"><td class="mdescLeft"> </td><td class="mdescRight">Called at the beginning of each frame or field picture. <a href="#a40b92f781dbaaecc9c82f636b790629b">More...</a><br /></td></tr>
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<tr class="memitem:ab1effeed94fc20e372a60fec7c4d741b"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#ab1effeed94fc20e372a60fec7c4d741b">decode_slice</a> )(<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, const uint8_t *buf, uint32_t buf_size)</td></tr>
<tr class="memdesc:ab1effeed94fc20e372a60fec7c4d741b"><td class="mdescLeft"> </td><td class="mdescRight">Callback for each slice. <a href="#ab1effeed94fc20e372a60fec7c4d741b">More...</a><br /></td></tr>
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<tr class="memitem:ae7f4bdfa848f4c38bb6d9d059c11a297"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#ae7f4bdfa848f4c38bb6d9d059c11a297">end_frame</a> )(<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td></tr>
<tr class="memdesc:ae7f4bdfa848f4c38bb6d9d059c11a297"><td class="mdescLeft"> </td><td class="mdescRight">Called at the end of each frame or field picture. <a href="#ae7f4bdfa848f4c38bb6d9d059c11a297">More...</a><br /></td></tr>
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<tr class="memitem:aecd7bfd22ce294f1ae5073164bb90d65"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#aecd7bfd22ce294f1ae5073164bb90d65">frame_priv_data_size</a></td></tr>
<tr class="memdesc:aecd7bfd22ce294f1ae5073164bb90d65"><td class="mdescLeft"> </td><td class="mdescRight">Size of per-frame hardware accelerator private data. <a href="#aecd7bfd22ce294f1ae5073164bb90d65">More...</a><br /></td></tr>
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<tr class="memitem:a78303ba4f7601306141d5f8bfe05d00e"><td class="memItemLeft" align="right" valign="top">void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a78303ba4f7601306141d5f8bfe05d00e">decode_mb</a> )(struct MpegEncContext *s)</td></tr>
<tr class="memdesc:a78303ba4f7601306141d5f8bfe05d00e"><td class="mdescLeft"> </td><td class="mdescRight">Called for every Macroblock in a slice. <a href="#a78303ba4f7601306141d5f8bfe05d00e">More...</a><br /></td></tr>
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<tr class="memitem:a8acb795f85f9852a98663e0944797d24"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a8acb795f85f9852a98663e0944797d24">init</a> )(<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td></tr>
<tr class="memdesc:a8acb795f85f9852a98663e0944797d24"><td class="mdescLeft"> </td><td class="mdescRight">Initialize the hwaccel private data. <a href="#a8acb795f85f9852a98663e0944797d24">More...</a><br /></td></tr>
<tr class="separator:a8acb795f85f9852a98663e0944797d24"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a19115ab5af7bf9e638889ffee0b4e232"><td class="memItemLeft" align="right" valign="top">int(* </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a19115ab5af7bf9e638889ffee0b4e232">uninit</a> )(<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td></tr>
<tr class="memdesc:a19115ab5af7bf9e638889ffee0b4e232"><td class="mdescLeft"> </td><td class="mdescRight">Uninitialize the hwaccel private data. <a href="#a19115ab5af7bf9e638889ffee0b4e232">More...</a><br /></td></tr>
<tr class="separator:a19115ab5af7bf9e638889ffee0b4e232"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a0094df5ea13d644ebcba1237d45055be"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#a0094df5ea13d644ebcba1237d45055be">priv_data_size</a></td></tr>
<tr class="memdesc:a0094df5ea13d644ebcba1237d45055be"><td class="mdescLeft"> </td><td class="mdescRight">Size of the private data to allocate in AVCodecInternal.hwaccel_priv_data. <a href="#a0094df5ea13d644ebcba1237d45055be">More...</a><br /></td></tr>
<tr class="separator:a0094df5ea13d644ebcba1237d45055be"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ac86c35478948dd4c3ee5619db982ee0d"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="structAVHWAccel.html#ac86c35478948dd4c3ee5619db982ee0d">caps_internal</a></td></tr>
<tr class="memdesc:ac86c35478948dd4c3ee5619db982ee0d"><td class="mdescLeft"> </td><td class="mdescRight">Internal hwaccel capabilities. <a href="#ac86c35478948dd4c3ee5619db982ee0d">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03867">3867</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9cc735be128cb62ff4cb594d3e3bdb92">◆ </a></span>name</h2>
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<p>Name of the hardware accelerated codec. </p>
<p>The name is globally unique among encoders and among decoders (but an encoder and a decoder can share the same name). </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03873">3873</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">enum <a class="el" href="group__lavu__misc.html#ga9a84bba4713dfced21a1a56163be1f48">AVMediaType</a> AVHWAccel::type</td>
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<p>Type of codec implemented by the hardware accelerator. </p>
<p>See AVMEDIA_TYPE_xxx </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03880">3880</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">enum <a class="el" href="group__lavc__core.html#gaadca229ad2c20e060a14fec08a5cc7ce">AVCodecID</a> AVHWAccel::id</td>
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<p>Codec implemented by the hardware accelerator. </p>
<p>See AV_CODEC_ID_xxx </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03887">3887</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">enum <a class="el" href="pixfmt_8h.html#a9a8e335cf3be472042bc9f0cf80cd4c5">AVPixelFormat</a> AVHWAccel::pix_fmt</td>
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<p>Supported pixel format. </p>
<p>Only hardware accelerated formats are supported here. </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03894">3894</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<p>Hardware accelerated codec capabilities. </p>
<p>see AV_HWACCEL_CODEC_CAP_* </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03900">3900</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">struct <a class="el" href="structAVHWAccel.html">AVHWAccel</a>* AVHWAccel::next</td>
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<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03909">3909</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">int(* AVHWAccel::alloc_frame) (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, <a class="el" href="structAVFrame.html">AVFrame</a> *<a class="el" href="extract__mvs_8c.html#ad7d33d579a8d4241a5e643e39287a209">frame</a>)</td>
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<p>Allocate a custom buffer. </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03914">3914</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">int(* AVHWAccel::start_frame) (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, const uint8_t *buf, uint32_t buf_size)</td>
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<p>Called at the beginning of each frame or field picture. </p>
<p>Meaningful frame information (codec specific) is guaranteed to be parsed at this point. This function is mandatory.</p>
<p>Note that buf can be NULL along with buf_size set to 0. Otherwise, this means the whole frame is available at this point.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">avctx</td><td>the codec context </td></tr>
<tr><td class="paramname">buf</td><td>the frame data buffer base </td></tr>
<tr><td class="paramname">buf_size</td><td>the size of the frame in bytes </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>zero if successful, a negative value otherwise </dd></dl>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03930">3930</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ab1effeed94fc20e372a60fec7c4d741b">◆ </a></span>decode_slice</h2>
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<td class="memname">int(* AVHWAccel::decode_slice) (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx, const uint8_t *buf, uint32_t buf_size)</td>
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<p>Callback for each slice. </p>
<p>Meaningful slice information (codec specific) is guaranteed to be parsed at this point. This function is mandatory. The only exception is XvMC, that works on MB level.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">avctx</td><td>the codec context </td></tr>
<tr><td class="paramname">buf</td><td>the slice data buffer base </td></tr>
<tr><td class="paramname">buf_size</td><td>the size of the slice in bytes </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>zero if successful, a negative value otherwise </dd></dl>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03944">3944</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ae7f4bdfa848f4c38bb6d9d059c11a297">◆ </a></span>end_frame</h2>
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<td class="memname">int(* AVHWAccel::end_frame) (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td>
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<p>Called at the end of each frame or field picture. </p>
<p>The whole picture is parsed at this point and can now be sent to the hardware accelerator. This function is mandatory.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">avctx</td><td>the codec context </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>zero if successful, a negative value otherwise </dd></dl>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03955">3955</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aecd7bfd22ce294f1ae5073164bb90d65">◆ </a></span>frame_priv_data_size</h2>
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<td class="memname">int AVHWAccel::frame_priv_data_size</td>
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<p>Size of per-frame hardware accelerator private data. </p>
<p>Private data is allocated with <a class="el" href="group__lavu__mem__funcs.html#ga6a42cc41278e2f5a5b658d2202d1650d" title="Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...">av_mallocz()</a> before AVCodecContext.get_buffer() and deallocated after AVCodecContext.release_buffer(). </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03964">3964</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">void(* AVHWAccel::decode_mb) (struct MpegEncContext *s)</td>
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<p>Called for every Macroblock in a slice. </p>
<p>XvMC uses it to replace the ff_mpv_reconstruct_mb(). Instead of decoding to raw picture, MB parameters are stored in an array provided by the video driver.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">s</td><td>the mpeg context </td></tr>
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<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03975">3975</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8acb795f85f9852a98663e0944797d24">◆ </a></span>init</h2>
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<td class="memname">int(* AVHWAccel::init) (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td>
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<p>Initialize the hwaccel private data. </p>
<p>This will be called from ff_get_format(), after hwaccel and hwaccel_context are set and the hwaccel private data in AVCodecInternal is allocated. </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03984">3984</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<td class="memname">int(* AVHWAccel::uninit) (<a class="el" href="structAVCodecContext.html">AVCodecContext</a> *avctx)</td>
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<p>Uninitialize the hwaccel private data. </p>
<p>This will be called from get_format() or <a class="el" href="group__lavc__core.html#gaf4daa92361efb3523ef5afeb0b54077f" title="Close a given AVCodecContext and free all the data associated with it (but not the AVCodecContext its...">avcodec_close()</a>, after hwaccel and hwaccel_context are already uninitialized. </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03992">3992</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0094df5ea13d644ebcba1237d45055be">◆ </a></span>priv_data_size</h2>
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<td class="memname">int AVHWAccel::priv_data_size</td>
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<p>Size of the private data to allocate in AVCodecInternal.hwaccel_priv_data. </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l03998">3998</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ac86c35478948dd4c3ee5619db982ee0d">◆ </a></span>caps_internal</h2>
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<td class="memname">int AVHWAccel::caps_internal</td>
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<p>Internal hwaccel capabilities. </p>
<p class="definition">Definition at line <a class="el" href="avcodec_8h_source.html#l04003">4003</a> of file <a class="el" href="avcodec_8h_source.html">avcodec.h</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>libavcodec/<a class="el" href="avcodec_8h_source.html">avcodec.h</a></li>
</ul>
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