gstreamer/sys/msdk/gstmsdkvc1dec.c
Sreerenj Balachandran 173b07ba11 msdk: vc1_dec: Add Advanced profile (WVC1) support
Only supporting asf header-format having BDUs with startcode.
It might be possible to support other formats too, but haven't tested.

https://bugzilla.gnome.org/show_bug.cgi?id=792589
2018-02-13 14:41:52 -09:00

131 lines
4.6 KiB
C

/* GStreamer Intel MSDK plugin
* Copyright (c) 2018, Intel Corporation
* All rights reserved.
*
* Sreerenj Balachandran <sreerenj.balachandran@intel.com>
*
* 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.
*/
/* sample pipeline: gst-launch-1.0 filesrc location=video.wmv ! asfdemux ! vc1parse ! msdkvc1dec ! videoconvert ! xvimagesink */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "gstmsdkvc1dec.h"
GST_DEBUG_CATEGORY_EXTERN (gst_msdkvc1dec_debug);
#define GST_CAT_DEFAULT gst_msdkvc1dec_debug
static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-wmv, "
"framerate = (fraction) [0/1, MAX], "
"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
"wmvversion= (int) 3, "
"format= (string) WMV3, "
"header-format= (string) none, "
"stream-format= (string) sequence-layer-frame-layer, "
"profile = (string) {simple, main}" ";"
"video/x-wmv, "
"framerate = (fraction) [0/1, MAX], "
"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
"wmvversion= (int) 3, "
"format= (string) WVC1, "
"header-format= (string) asf, "
"stream-format= (string) bdu, " "profile = (string) advanced" ";")
);
#define gst_msdkvc1dec_parent_class parent_class
G_DEFINE_TYPE (GstMsdkVC1Dec, gst_msdkvc1dec, GST_TYPE_MSDKDEC);
static gboolean
gst_msdkvc1dec_configure (GstMsdkDec * decoder)
{
GstBuffer *buffer;
GstCaps *caps;
GstStructure *structure;
const gchar *profile_str;
caps = decoder->input_state->caps;
if (!caps)
return FALSE;
structure = gst_caps_get_structure (caps, 0);
if (!structure)
return FALSE;
decoder->param.mfx.CodecId = MFX_CODEC_VC1;
profile_str = gst_structure_get_string (structure, "profile");
if (!strcmp (profile_str, "simple"))
decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_SIMPLE;
else if (!strcmp (profile_str, "main"))
decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_MAIN;
else {
decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_ADVANCED;
/* asf advanced profile codec-data has 1 byte in the begining
* which is the ASF binding byte. MediaSDK can't recognize this
* byte, so discard it */
buffer = gst_buffer_copy_region (decoder->input_state->codec_data,
GST_BUFFER_COPY_DEEP | GST_BUFFER_COPY_MEMORY, 1,
gst_buffer_get_size (decoder->input_state->codec_data) - 1);
gst_adapter_push (decoder->adapter, buffer);
decoder->is_packetized = FALSE;
}
return TRUE;
}
static void
gst_msdkvc1dec_class_init (GstMsdkVC1DecClass * 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_msdkvc1dec_configure);
gst_element_class_set_static_metadata (element_class,
"Intel MSDK VC1 decoder",
"Codec/Decoder/Video",
"VC1/WMV video decoder based on Intel Media SDK",
"Sreerenj Balachandran <sreerenj.balachandran@intel.com>");
gst_element_class_add_static_pad_template (element_class, &sink_factory);
}
static void
gst_msdkvc1dec_init (GstMsdkVC1Dec * thiz)
{
}