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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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255 lines
8.2 KiB
C
255 lines
8.2 KiB
C
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/*
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* gstvaapidecodedoc.c - VA-API video decoders documentation
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*
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* Copyright (C) 2016 Intel Corporation
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* Author: Victor Jaquez <victorx.jaquez@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:element-vaapijpegdec
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* @short_description: A VA-API based JPEG image decoder
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*
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* vaapijpegdec decodes a JPEG image to surfaces suitable for the
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* vaapisink or vaapipostproc elements using the installed <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=~/image.jpeg ! jpegparse ! vaapijpegdec ! imagefreeze ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapimpeg2dec
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* @short_description: A VA-API based MPEG2 video decoder
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*
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* vaapimpeg2dec decodes from MPEG2 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=~/sample.mpg ! mpegpsdemux ! vaapimpeg2dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapimpeg4dec
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* @short_description: A VA-API based MPEG4 video decoder
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*
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* vaapimpeg4dec decodes from MPEG4 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=~/sample.mpeg4 ! mpeg4videoparse ! vaapimpeg4dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapih263dec
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* @short_description: A VA-API based H263 video decoder
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*
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* vaapih263dec decodes from H263 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=~/sample.h263 ! h263parse ! vaapih263dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapih264dec
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* @short_description: A VA-API based H264 video decoder
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*
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* vaapih264dec decodes from H264 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=~/big_buck_bunny.mov ! qtdemux ! h264parse ! vaapih264dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapih265dec
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* @short_description: A VA-API based H265 video decoder
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*
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* vaapih265dec decodes from H265 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=./sample.bin ! h265parse ! vaapih265dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapivc1dec
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* @short_description: A VA-API based VC1 video decoder
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*
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* vaapivc1dec decodes from VC1 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=~/elephants_dream.wmv ! asfdemux ! vaapivc1dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapivp8dec
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* @short_description: A VA-API based VP8 video decoder
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*
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* vaapivp8dec decodes from VP8 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=./sample.webm ! matroskademux ! vaapivp8dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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/**
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* SECTION:element-vaapivp9dec
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* @short_description: A VA-API based VP9 video decoder
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*
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* vaapivp9dec decodes from VP9 bitstreams to surfaces suitable
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* for the vaapisink or vaapipostproc elements using the installed
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* <ulink
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* url="https://wiki.freedesktop.org/www/Software/vaapi/">VA-API</ulink>
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* back-end.
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*
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* In the case of OpenGL based elements, the buffers have the
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* #GstVideoGLTextureUploadMeta meta, which efficiently copies the
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* content of the VA-API surface into a GL texture.
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*
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* Also it can deliver normal video buffers that can be rendered or
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* processed by other elements, but the performance would be rather
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* bad.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch-1.0 filesrc location=./sample.vp9.webm ! ivfparse ! vaapivp9dec ! vaapisink
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* ]|
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* </refsect2>
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*/
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