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173b07ba11
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
131 lines
4.6 KiB
C
131 lines
4.6 KiB
C
/* GStreamer Intel MSDK plugin
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* Copyright (c) 2018, Intel Corporation
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* All rights reserved.
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*
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* Sreerenj Balachandran <sreerenj.balachandran@intel.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* sample pipeline: gst-launch-1.0 filesrc location=video.wmv ! asfdemux ! vc1parse ! msdkvc1dec ! videoconvert ! xvimagesink */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "gstmsdkvc1dec.h"
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GST_DEBUG_CATEGORY_EXTERN (gst_msdkvc1dec_debug);
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#define GST_CAT_DEFAULT gst_msdkvc1dec_debug
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static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-wmv, "
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"framerate = (fraction) [0/1, MAX], "
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"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
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"wmvversion= (int) 3, "
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"format= (string) WMV3, "
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"header-format= (string) none, "
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"stream-format= (string) sequence-layer-frame-layer, "
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"profile = (string) {simple, main}" ";"
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"video/x-wmv, "
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"framerate = (fraction) [0/1, MAX], "
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"width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
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"wmvversion= (int) 3, "
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"format= (string) WVC1, "
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"header-format= (string) asf, "
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"stream-format= (string) bdu, " "profile = (string) advanced" ";")
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);
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#define gst_msdkvc1dec_parent_class parent_class
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G_DEFINE_TYPE (GstMsdkVC1Dec, gst_msdkvc1dec, GST_TYPE_MSDKDEC);
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static gboolean
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gst_msdkvc1dec_configure (GstMsdkDec * decoder)
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{
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GstBuffer *buffer;
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GstCaps *caps;
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GstStructure *structure;
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const gchar *profile_str;
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caps = decoder->input_state->caps;
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if (!caps)
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return FALSE;
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structure = gst_caps_get_structure (caps, 0);
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if (!structure)
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return FALSE;
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decoder->param.mfx.CodecId = MFX_CODEC_VC1;
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profile_str = gst_structure_get_string (structure, "profile");
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if (!strcmp (profile_str, "simple"))
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decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_SIMPLE;
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else if (!strcmp (profile_str, "main"))
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decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_MAIN;
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else {
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decoder->param.mfx.CodecProfile = MFX_PROFILE_VC1_ADVANCED;
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/* asf advanced profile codec-data has 1 byte in the begining
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* which is the ASF binding byte. MediaSDK can't recognize this
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* byte, so discard it */
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buffer = gst_buffer_copy_region (decoder->input_state->codec_data,
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GST_BUFFER_COPY_DEEP | GST_BUFFER_COPY_MEMORY, 1,
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gst_buffer_get_size (decoder->input_state->codec_data) - 1);
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gst_adapter_push (decoder->adapter, buffer);
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decoder->is_packetized = FALSE;
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}
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return TRUE;
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}
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static void
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gst_msdkvc1dec_class_init (GstMsdkVC1DecClass * klass)
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{
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GstElementClass *element_class;
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GstMsdkDecClass *decoder_class;
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element_class = GST_ELEMENT_CLASS (klass);
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decoder_class = GST_MSDKDEC_CLASS (klass);
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decoder_class->configure = GST_DEBUG_FUNCPTR (gst_msdkvc1dec_configure);
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gst_element_class_set_static_metadata (element_class,
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"Intel MSDK VC1 decoder",
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"Codec/Decoder/Video",
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"VC1/WMV video decoder based on Intel Media SDK",
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"Sreerenj Balachandran <sreerenj.balachandran@intel.com>");
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gst_element_class_add_static_pad_template (element_class, &sink_factory);
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}
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static void
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gst_msdkvc1dec_init (GstMsdkVC1Dec * thiz)
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{
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}
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