mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-03 16:09:39 +00:00
138 lines
4.6 KiB
C
138 lines
4.6 KiB
C
/* GStreamer Intel MSDK plugin
|
|
* Copyright (c) 2016, Intel Corporation
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
|
|
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/**
|
|
* SECTION: element-msdkmjpegdec
|
|
* @title: msdkmjpegdec
|
|
* @short_description: Intel MSDK MJPEG decoder
|
|
*
|
|
* MJPEG video decoder based on Intel MFX
|
|
*
|
|
* ## Example launch line
|
|
* ```
|
|
* gst-launch-1.0 filesrc location=sample.jpg ! jpegparse ! msdkmjpegdec ! glimagesink
|
|
* ```
|
|
*
|
|
* Since: 1.12
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#include <mfxstructures.h>
|
|
#include <mfxjpeg.h>
|
|
|
|
#include "gstmsdkmjpegdec.h"
|
|
#include "gstmsdkvideomemory.h"
|
|
|
|
#include <gst/pbutils/pbutils.h>
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (gst_msdkmjpegdec_debug);
|
|
#define GST_CAT_DEFAULT gst_msdkmjpegdec_debug
|
|
|
|
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("image/jpeg, "
|
|
"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], parsed = true ")
|
|
);
|
|
|
|
static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS (GST_MSDK_CAPS_STR ("{ NV12, YUY2 }", "{ NV12, YUY2 }"))
|
|
);
|
|
|
|
#define gst_msdkmjpegdec_parent_class parent_class
|
|
G_DEFINE_TYPE (GstMsdkMJPEGDec, gst_msdkmjpegdec, GST_TYPE_MSDKDEC);
|
|
|
|
static gboolean
|
|
gst_msdkmjpegdec_configure (GstMsdkDec * decoder)
|
|
{
|
|
decoder->param.mfx.CodecId = MFX_CODEC_JPEG;
|
|
|
|
/* HACK to make sure MSDK won't crash while handling non-interleaved samples */
|
|
/* setting MFX_SCANTYPE_UNKNOWN (== 0) causing issues for
|
|
non-interleaved samples. Usage of MFXVideoDECODE_DecodeHeader
|
|
also doesn't seems to fix the issue. But even if we hardcode
|
|
the InterleaveDec to MFX_SCANTYPE_NONINTERLEAVED, msdk seems to be taking care
|
|
of Interleaved samples, so let's hardcode it for now */
|
|
decoder->param.mfx.InterleavedDec = MFX_SCANTYPE_NONINTERLEAVED;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_msdkmjpegdec_post_configure (GstMsdkDec * decoder)
|
|
{
|
|
/* Set the output color format based on the input color format */
|
|
switch (decoder->param.mfx.JPEGChromaFormat) {
|
|
case MFX_CHROMAFORMAT_YUV422:
|
|
decoder->param.mfx.FrameInfo.FourCC = MFX_FOURCC_YUY2;
|
|
decoder->param.mfx.FrameInfo.ChromaFormat =
|
|
decoder->param.mfx.JPEGChromaFormat;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_msdkmjpegdec_class_init (GstMsdkMJPEGDecClass * klass)
|
|
{
|
|
GstElementClass *element_class;
|
|
GstMsdkDecClass *decoder_class;
|
|
|
|
element_class = GST_ELEMENT_CLASS (klass);
|
|
decoder_class = GST_MSDKDEC_CLASS (klass);
|
|
|
|
decoder_class->configure = GST_DEBUG_FUNCPTR (gst_msdkmjpegdec_configure);
|
|
decoder_class->post_configure =
|
|
GST_DEBUG_FUNCPTR (gst_msdkmjpegdec_post_configure);
|
|
|
|
gst_element_class_set_static_metadata (element_class,
|
|
"Intel MSDK MJPEG decoder",
|
|
"Codec/Decoder/Video/Hardware",
|
|
"MJPEG video decoder based on " MFX_API_SDK,
|
|
"Scott D Phillips <scott.d.phillips@intel.com>");
|
|
|
|
gst_element_class_add_static_pad_template (element_class, &sink_factory);
|
|
gst_element_class_add_static_pad_template (element_class, &src_factory);
|
|
}
|
|
|
|
static void
|
|
gst_msdkmjpegdec_init (GstMsdkMJPEGDec * thiz)
|
|
{
|
|
}
|