Update
This commit is contained in:
Akkariin Meiko
@@ -0,0 +1,856 @@
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/* GStreamer
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* Copyright (C) 2021 Seungha Yang <seungha@centricular.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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, 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-d3d11mpeg2dec
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* @title: d3d11mpeg2dec
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*
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* A Direct3D11/DXVA based MPEG-2 video decoder
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*
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* ## Example launch line
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* ```
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* gst-launch-1.0 filesrc location=/path/to/mpeg2/file ! parsebin ! d3d11mpeg2dec ! d3d11videosink
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* ```
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*
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* Since: 1.20
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*
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*/
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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 "gstd3d11mpeg2dec.h"
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#include <gst/codecs/gstmpeg2decoder.h>
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#include <string.h>
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#include <vector>
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/* HACK: to expose dxva data structure on UWP */
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#ifdef WINAPI_PARTITION_DESKTOP
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#undef WINAPI_PARTITION_DESKTOP
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#endif
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#define WINAPI_PARTITION_DESKTOP 1
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#include <d3d9.h>
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#include <dxva.h>
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GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_mpeg2_dec_debug);
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#define GST_CAT_DEFAULT gst_d3d11_mpeg2_dec_debug
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/* reference list 2 + 4 margin */
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#define NUM_OUTPUT_VIEW 6
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/* *INDENT-OFF* */
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typedef struct _GstD3D11Mpeg2DecInner
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{
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GstD3D11Device *device = nullptr;
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GstD3D11Decoder *d3d11_decoder = nullptr;
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DXVA_PictureParameters pic_params;
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DXVA_QmatrixData iq_matrix;
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std::vector<DXVA_SliceInfo> slice_list;
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std::vector<guint8> bitstream_buffer;
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gboolean submit_iq_data;
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gint width = 0;
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gint height = 0;
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guint width_in_mb = 0;
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guint height_in_mb = 0;
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GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN;
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GstMpegVideoSequenceHdr seq;
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GstMpegVideoProfile profile = GST_MPEG_VIDEO_PROFILE_MAIN;
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gboolean interlaced = FALSE;
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} GstD3D11Mpeg2DecInner;
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/* *INDENT-ON* */
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typedef struct _GstD3D11Mpeg2Dec
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{
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GstMpeg2Decoder parent;
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GstD3D11Mpeg2DecInner *inner;
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} GstD3D11Mpeg2Dec;
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typedef struct _GstD3D11Mpeg2DecClass
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{
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GstMpeg2DecoderClass parent_class;
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GstD3D11DecoderSubClassData class_data;
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} GstD3D11Mpeg2DecClass;
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static GstElementClass *parent_class = NULL;
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#define GST_D3D11_MPEG2_DEC(object) ((GstD3D11Mpeg2Dec *) (object))
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#define GST_D3D11_MPEG2_DEC_GET_CLASS(object) \
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(G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstD3D11Mpeg2DecClass))
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static void gst_d3d11_mpeg2_dec_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec);
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static void gst_d3d11_mpeg2_dec_finalize (GObject * object);
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static void gst_d3d11_mpeg2_dec_set_context (GstElement * element,
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GstContext * context);
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static gboolean gst_d3d11_mpeg2_dec_open (GstVideoDecoder * decoder);
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static gboolean gst_d3d11_mpeg2_dec_close (GstVideoDecoder * decoder);
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static gboolean gst_d3d11_mpeg2_dec_negotiate (GstVideoDecoder * decoder);
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static gboolean gst_d3d11_mpeg2_dec_decide_allocation (GstVideoDecoder *
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decoder, GstQuery * query);
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static gboolean gst_d3d11_mpeg2_dec_src_query (GstVideoDecoder * decoder,
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GstQuery * query);
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static gboolean gst_d3d11_mpeg2_dec_sink_event (GstVideoDecoder * decoder,
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GstEvent * event);
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/* GstMpeg2Decoder */
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static GstFlowReturn gst_d3d11_mpeg2_dec_new_sequence (GstMpeg2Decoder *
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decoder, const GstMpegVideoSequenceHdr * seq,
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const GstMpegVideoSequenceExt * seq_ext,
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const GstMpegVideoSequenceDisplayExt * seq_display_ext,
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const GstMpegVideoSequenceScalableExt * seq_scalable_ext);
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static GstFlowReturn gst_d3d11_mpeg2_dec_new_picture (GstMpeg2Decoder * decoder,
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GstVideoCodecFrame * frame, GstMpeg2Picture * picture);
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static GstFlowReturn
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gst_d3d11_mpeg2_dec_new_field_picture (GstMpeg2Decoder * decoder,
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GstMpeg2Picture * first_field, GstMpeg2Picture * second_field);
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static GstFlowReturn gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder *
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decoder, GstMpeg2Picture * picture, GstMpeg2Slice * slice,
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GstMpeg2Picture * prev_picture, GstMpeg2Picture * next_picture);
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static GstFlowReturn gst_d3d11_mpeg2_dec_decode_slice (GstMpeg2Decoder *
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decoder, GstMpeg2Picture * picture, GstMpeg2Slice * slice);
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static GstFlowReturn gst_d3d11_mpeg2_dec_end_picture (GstMpeg2Decoder * decoder,
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GstMpeg2Picture * picture);
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static GstFlowReturn gst_d3d11_mpeg2_dec_output_picture (GstMpeg2Decoder *
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decoder, GstVideoCodecFrame * frame, GstMpeg2Picture * picture);
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static void
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gst_d3d11_mpeg2_dec_class_init (GstD3D11Mpeg2DecClass * klass, gpointer data)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
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GstMpeg2DecoderClass *mpeg2decoder_class = GST_MPEG2_DECODER_CLASS (klass);
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GstD3D11DecoderClassData *cdata = (GstD3D11DecoderClassData *) data;
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gobject_class->get_property = gst_d3d11_mpeg2_dec_get_property;
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gobject_class->finalize = gst_d3d11_mpeg2_dec_finalize;
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element_class->set_context =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_set_context);
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parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
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gst_d3d11_decoder_class_data_fill_subclass_data (cdata, &klass->class_data);
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/**
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* GstD3D11Mpeg2Dec:adapter-luid:
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*
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* DXGI Adapter LUID for this element
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*
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* Since: 1.20
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*/
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gst_d3d11_decoder_proxy_class_init (element_class, cdata,
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"Seungha Yang <seungha@centricular.com>");
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decoder_class->open = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_open);
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decoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_close);
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decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_negotiate);
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decoder_class->decide_allocation =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_decide_allocation);
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decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_src_query);
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decoder_class->sink_event =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_sink_event);
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mpeg2decoder_class->new_sequence =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_new_sequence);
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mpeg2decoder_class->new_picture =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_new_picture);
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mpeg2decoder_class->new_field_picture =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_new_field_picture);
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mpeg2decoder_class->start_picture =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_start_picture);
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mpeg2decoder_class->decode_slice =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_decode_slice);
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mpeg2decoder_class->end_picture =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_end_picture);
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mpeg2decoder_class->output_picture =
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GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_output_picture);
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}
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static void
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gst_d3d11_mpeg2_dec_init (GstD3D11Mpeg2Dec * self)
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{
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self->inner = new GstD3D11Mpeg2DecInner ();
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}
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static void
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gst_d3d11_mpeg2_dec_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstD3D11Mpeg2DecClass *klass = GST_D3D11_MPEG2_DEC_GET_CLASS (object);
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GstD3D11DecoderSubClassData *cdata = &klass->class_data;
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gst_d3d11_decoder_proxy_get_property (object, prop_id, value, pspec, cdata);
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}
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static void
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gst_d3d11_mpeg2_dec_finalize (GObject * object)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (object);
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delete self->inner;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_d3d11_mpeg2_dec_set_context (GstElement * element, GstContext * context)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (element);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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GstD3D11Mpeg2DecClass *klass = GST_D3D11_MPEG2_DEC_GET_CLASS (self);
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GstD3D11DecoderSubClassData *cdata = &klass->class_data;
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gst_d3d11_handle_set_context_for_adapter_luid (element,
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context, cdata->adapter_luid, &inner->device);
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GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
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}
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static gboolean
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gst_d3d11_mpeg2_dec_open (GstVideoDecoder * decoder)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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GstD3D11Mpeg2DecClass *klass = GST_D3D11_MPEG2_DEC_GET_CLASS (self);
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GstD3D11DecoderSubClassData *cdata = &klass->class_data;
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if (!gst_d3d11_decoder_proxy_open (decoder,
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cdata, &inner->device, &inner->d3d11_decoder)) {
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GST_ERROR_OBJECT (self, "Failed to open decoder");
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return FALSE;
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}
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return TRUE;
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}
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static gboolean
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gst_d3d11_mpeg2_dec_close (GstVideoDecoder * decoder)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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gst_clear_object (&inner->d3d11_decoder);
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gst_clear_object (&inner->device);
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return TRUE;
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}
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static gboolean
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gst_d3d11_mpeg2_dec_negotiate (GstVideoDecoder * decoder)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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if (!gst_d3d11_decoder_negotiate (inner->d3d11_decoder, decoder))
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return FALSE;
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return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder);
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}
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static gboolean
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gst_d3d11_mpeg2_dec_decide_allocation (GstVideoDecoder * decoder,
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GstQuery * query)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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if (!gst_d3d11_decoder_decide_allocation (inner->d3d11_decoder,
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decoder, query)) {
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return FALSE;
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}
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return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation
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(decoder, query);
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}
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static gboolean
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gst_d3d11_mpeg2_dec_src_query (GstVideoDecoder * decoder, GstQuery * query)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CONTEXT:
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if (gst_d3d11_handle_context_query (GST_ELEMENT (decoder),
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query, inner->device)) {
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return TRUE;
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}
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break;
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default:
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break;
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}
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return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query);
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}
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static gboolean
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gst_d3d11_mpeg2_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_FLUSH_START:
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if (inner->d3d11_decoder)
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gst_d3d11_decoder_set_flushing (inner->d3d11_decoder, decoder, TRUE);
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break;
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case GST_EVENT_FLUSH_STOP:
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if (inner->d3d11_decoder)
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gst_d3d11_decoder_set_flushing (inner->d3d11_decoder, decoder, FALSE);
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default:
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break;
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}
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return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (decoder, event);
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}
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static GstFlowReturn
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gst_d3d11_mpeg2_dec_new_sequence (GstMpeg2Decoder * decoder,
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const GstMpegVideoSequenceHdr * seq,
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const GstMpegVideoSequenceExt * seq_ext,
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const GstMpegVideoSequenceDisplayExt * seq_display_ext,
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const GstMpegVideoSequenceScalableExt * seq_scalable_ext)
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{
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GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
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GstD3D11Mpeg2DecInner *inner = self->inner;
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gboolean interlaced;
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gboolean modified = FALSE;
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gint width, height;
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GstMpegVideoProfile mpeg_profile;
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GST_LOG_OBJECT (self, "new sequence");
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interlaced = seq_ext ? !seq_ext->progressive : FALSE;
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if (inner->interlaced != interlaced) {
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GST_INFO_OBJECT (self, "interlaced sequence change");
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inner->interlaced = interlaced;
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modified = TRUE;
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}
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width = seq->width;
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height = seq->height;
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if (seq_ext) {
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width = (width & 0x0fff) | ((guint32) seq_ext->horiz_size_ext << 12);
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height = (height & 0x0fff) | ((guint32) seq_ext->vert_size_ext << 12);
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}
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if (inner->width != width || inner->height != height) {
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GST_INFO_OBJECT (self, "resolution change %dx%d -> %dx%d",
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inner->width, inner->height, width, height);
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inner->width = width;
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inner->height = height;
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inner->width_in_mb = GST_ROUND_UP_16 (width) >> 4;
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inner->height_in_mb = GST_ROUND_UP_16 (height) >> 4;
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modified = TRUE;
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}
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mpeg_profile = GST_MPEG_VIDEO_PROFILE_MAIN;
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if (seq_ext)
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mpeg_profile = (GstMpegVideoProfile) seq_ext->profile;
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if (mpeg_profile != GST_MPEG_VIDEO_PROFILE_MAIN &&
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mpeg_profile != GST_MPEG_VIDEO_PROFILE_SIMPLE) {
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GST_ERROR_OBJECT (self, "Cannot support profile %d", mpeg_profile);
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return GST_FLOW_NOT_NEGOTIATED;
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}
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if (inner->profile != mpeg_profile) {
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GST_INFO_OBJECT (self, "Profile change %d -> %d",
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inner->profile, mpeg_profile);
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inner->profile = mpeg_profile;
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modified = TRUE;
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}
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if (modified || !gst_d3d11_decoder_is_configured (inner->d3d11_decoder)) {
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GstVideoInfo info;
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/* FIXME: support I420 */
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inner->out_format = GST_VIDEO_FORMAT_NV12;
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gst_video_info_set_format (&info,
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inner->out_format, inner->width, inner->height);
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if (inner->interlaced)
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GST_VIDEO_INFO_INTERLACE_MODE (&info) = GST_VIDEO_INTERLACE_MODE_MIXED;
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if (!gst_d3d11_decoder_configure (inner->d3d11_decoder,
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decoder->input_state, &info,
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inner->width, inner->height, NUM_OUTPUT_VIEW)) {
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GST_ERROR_OBJECT (self, "Failed to create decoder");
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return GST_FLOW_NOT_NEGOTIATED;
|
||||
}
|
||||
|
||||
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
|
||||
GST_ERROR_OBJECT (self, "Failed to negotiate with downstream");
|
||||
return GST_FLOW_NOT_NEGOTIATED;
|
||||
}
|
||||
}
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_d3d11_mpeg2_dec_new_picture (GstMpeg2Decoder * decoder,
|
||||
GstVideoCodecFrame * frame, GstMpeg2Picture * picture)
|
||||
{
|
||||
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
||||
GstD3D11Mpeg2DecInner *inner = self->inner;
|
||||
GstBuffer *view_buffer;
|
||||
|
||||
view_buffer = gst_d3d11_decoder_get_output_view_buffer (inner->d3d11_decoder,
|
||||
GST_VIDEO_DECODER (decoder));
|
||||
if (!view_buffer) {
|
||||
GST_DEBUG_OBJECT (self, "No available output view buffer");
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
GST_LOG_OBJECT (self, "New output view buffer %" GST_PTR_FORMAT, view_buffer);
|
||||
|
||||
gst_mpeg2_picture_set_user_data (picture,
|
||||
view_buffer, (GDestroyNotify) gst_buffer_unref);
|
||||
|
||||
GST_LOG_OBJECT (self, "New MPEG2 picture %p", picture);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_d3d11_mpeg2_dec_new_field_picture (GstMpeg2Decoder * decoder,
|
||||
GstMpeg2Picture * first_field, GstMpeg2Picture * second_field)
|
||||
{
|
||||
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
||||
GstBuffer *view_buffer;
|
||||
|
||||
view_buffer = (GstBuffer *)
|
||||
gst_mpeg2_picture_get_user_data (first_field);
|
||||
|
||||
if (!view_buffer) {
|
||||
GST_WARNING_OBJECT (self, "First picture does not have output view buffer");
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
GST_LOG_OBJECT (self, "New field picture with buffer %" GST_PTR_FORMAT,
|
||||
view_buffer);
|
||||
|
||||
gst_mpeg2_picture_set_user_data (second_field,
|
||||
gst_buffer_ref (view_buffer), (GDestroyNotify) gst_buffer_unref);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static ID3D11VideoDecoderOutputView *
|
||||
gst_d3d11_mpeg2_dec_get_output_view_from_picture (GstD3D11Mpeg2Dec * self,
|
||||
GstMpeg2Picture * picture, guint8 * view_id)
|
||||
{
|
||||
GstD3D11Mpeg2DecInner *inner = self->inner;
|
||||
GstBuffer *view_buffer;
|
||||
ID3D11VideoDecoderOutputView *view;
|
||||
|
||||
if (!picture)
|
||||
return NULL;
|
||||
|
||||
view_buffer = (GstBuffer *) gst_mpeg2_picture_get_user_data (picture);
|
||||
if (!view_buffer) {
|
||||
GST_DEBUG_OBJECT (self, "current picture does not have output view buffer");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
view =
|
||||
gst_d3d11_decoder_get_output_view_from_buffer (inner->d3d11_decoder,
|
||||
view_buffer, view_id);
|
||||
if (!view) {
|
||||
GST_DEBUG_OBJECT (self, "current picture does not have output view handle");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return view;
|
||||
}
|
||||
|
||||
static inline WORD
|
||||
_pack_f_codes (guint8 f_code[2][2])
|
||||
{
|
||||
return (((WORD) f_code[0][0] << 12)
|
||||
| ((WORD) f_code[0][1] << 8)
|
||||
| ((WORD) f_code[1][0] << 4)
|
||||
| (f_code[1][1]));
|
||||
}
|
||||
|
||||
static inline WORD
|
||||
_pack_pce_elements (GstMpeg2Slice * slice)
|
||||
{
|
||||
return (((WORD) slice->pic_ext->intra_dc_precision << 14)
|
||||
| ((WORD) slice->pic_ext->picture_structure << 12)
|
||||
| ((WORD) slice->pic_ext->top_field_first << 11)
|
||||
| ((WORD) slice->pic_ext->frame_pred_frame_dct << 10)
|
||||
| ((WORD) slice->pic_ext->concealment_motion_vectors << 9)
|
||||
| ((WORD) slice->pic_ext->q_scale_type << 8)
|
||||
| ((WORD) slice->pic_ext->intra_vlc_format << 7)
|
||||
| ((WORD) slice->pic_ext->alternate_scan << 6)
|
||||
| ((WORD) slice->pic_ext->repeat_first_field << 5)
|
||||
| ((WORD) slice->pic_ext->chroma_420_type << 4)
|
||||
| ((WORD) slice->pic_ext->progressive_frame << 3));
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder * decoder,
|
||||
GstMpeg2Picture * picture, GstMpeg2Slice * slice,
|
||||
GstMpeg2Picture * prev_picture, GstMpeg2Picture * next_picture)
|
||||
{
|
||||
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
||||
GstD3D11Mpeg2DecInner *inner = self->inner;
|
||||
DXVA_PictureParameters *pic_params = &inner->pic_params;
|
||||
DXVA_QmatrixData *iq_matrix = &inner->iq_matrix;
|
||||
ID3D11VideoDecoderOutputView *view;
|
||||
ID3D11VideoDecoderOutputView *other_view;
|
||||
guint8 view_id = 0xff;
|
||||
guint8 other_view_id = 0xff;
|
||||
gboolean is_field =
|
||||
picture->structure != GST_MPEG_VIDEO_PICTURE_STRUCTURE_FRAME;
|
||||
|
||||
view = gst_d3d11_mpeg2_dec_get_output_view_from_picture (self, picture,
|
||||
&view_id);
|
||||
if (!view) {
|
||||
GST_ERROR_OBJECT (self, "current picture does not have output view handle");
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
memset (pic_params, 0, sizeof (DXVA_PictureParameters));
|
||||
memset (iq_matrix, 0, sizeof (DXVA_QmatrixData));
|
||||
|
||||
/* Fill DXVA_PictureParameters */
|
||||
pic_params->wDecodedPictureIndex = view_id;
|
||||
pic_params->wForwardRefPictureIndex = 0xffff;
|
||||
pic_params->wBackwardRefPictureIndex = 0xffff;
|
||||
|
||||
switch (picture->type) {
|
||||
case GST_MPEG_VIDEO_PICTURE_TYPE_B:{
|
||||
if (next_picture) {
|
||||
other_view =
|
||||
gst_d3d11_mpeg2_dec_get_output_view_from_picture (self,
|
||||
next_picture, &other_view_id);
|
||||
if (other_view)
|
||||
pic_params->wBackwardRefPictureIndex = other_view_id;
|
||||
}
|
||||
}
|
||||
/* fall-through */
|
||||
case GST_MPEG_VIDEO_PICTURE_TYPE_P:{
|
||||
if (prev_picture) {
|
||||
other_view =
|
||||
gst_d3d11_mpeg2_dec_get_output_view_from_picture (self,
|
||||
prev_picture, &other_view_id);
|
||||
if (other_view)
|
||||
pic_params->wForwardRefPictureIndex = other_view_id;
|
||||
}
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
pic_params->wPicWidthInMBminus1 = inner->width_in_mb - 1;
|
||||
pic_params->wPicHeightInMBminus1 = (inner->height_in_mb >> is_field) - 1;
|
||||
pic_params->bMacroblockWidthMinus1 = 15;
|
||||
pic_params->bMacroblockHeightMinus1 = 15;
|
||||
pic_params->bBlockWidthMinus1 = 7;
|
||||
pic_params->bBlockHeightMinus1 = 7;
|
||||
pic_params->bBPPminus1 = 7;
|
||||
pic_params->bPicStructure = (BYTE) picture->structure;
|
||||
if (picture->first_field && is_field) {
|
||||
pic_params->bSecondField = TRUE;
|
||||
}
|
||||
pic_params->bPicIntra = picture->type == GST_MPEG_VIDEO_PICTURE_TYPE_I;
|
||||
pic_params->bPicBackwardPrediction =
|
||||
picture->type == GST_MPEG_VIDEO_PICTURE_TYPE_B;
|
||||
/* FIXME: 1 -> 4:2:0, 2 -> 4:2:2, 3 -> 4:4:4 */
|
||||
pic_params->bChromaFormat = 1;
|
||||
pic_params->bPicScanFixed = 1;
|
||||
pic_params->bPicScanMethod = slice->pic_ext->alternate_scan;
|
||||
pic_params->wBitstreamFcodes = _pack_f_codes (slice->pic_ext->f_code);
|
||||
pic_params->wBitstreamPCEelements = _pack_pce_elements (slice);
|
||||
|
||||
/* Fill DXVA_QmatrixData */
|
||||
if (slice->quant_matrix &&
|
||||
/* The value in bNewQmatrix[0] and bNewQmatrix[1] must not both be zero.
|
||||
* https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/dxva/ns-dxva-_dxva_qmatrixdata
|
||||
*/
|
||||
(slice->quant_matrix->load_intra_quantiser_matrix ||
|
||||
slice->quant_matrix->load_non_intra_quantiser_matrix)) {
|
||||
GstMpegVideoQuantMatrixExt *quant_matrix = slice->quant_matrix;
|
||||
|
||||
if (quant_matrix->load_intra_quantiser_matrix) {
|
||||
iq_matrix->bNewQmatrix[0] = 1;
|
||||
for (guint i = 0; i < 64; i++) {
|
||||
iq_matrix->Qmatrix[0][i] = quant_matrix->intra_quantiser_matrix[i];
|
||||
}
|
||||
}
|
||||
|
||||
if (quant_matrix->load_non_intra_quantiser_matrix) {
|
||||
iq_matrix->bNewQmatrix[1] = 1;
|
||||
for (guint i = 0; i < 64; i++) {
|
||||
iq_matrix->Qmatrix[1][i] = quant_matrix->non_intra_quantiser_matrix[i];
|
||||
}
|
||||
}
|
||||
|
||||
if (quant_matrix->load_chroma_intra_quantiser_matrix) {
|
||||
iq_matrix->bNewQmatrix[2] = 1;
|
||||
for (guint i = 0; i < 64; i++) {
|
||||
iq_matrix->Qmatrix[2][i] =
|
||||
quant_matrix->chroma_intra_quantiser_matrix[i];
|
||||
}
|
||||
}
|
||||
|
||||
if (quant_matrix->load_chroma_non_intra_quantiser_matrix) {
|
||||
iq_matrix->bNewQmatrix[3] = 1;
|
||||
for (guint i = 0; i < 64; i++) {
|
||||
iq_matrix->Qmatrix[3][i] =
|
||||
quant_matrix->chroma_non_intra_quantiser_matrix[i];
|
||||
}
|
||||
}
|
||||
|
||||
inner->submit_iq_data = TRUE;
|
||||
} else {
|
||||
inner->submit_iq_data = FALSE;
|
||||
}
|
||||
|
||||
inner->slice_list.resize (0);
|
||||
inner->bitstream_buffer.resize (0);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_d3d11_mpeg2_dec_decode_slice (GstMpeg2Decoder * decoder,
|
||||
GstMpeg2Picture * picture, GstMpeg2Slice * slice)
|
||||
{
|
||||
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
||||
GstD3D11Mpeg2DecInner *inner = self->inner;
|
||||
GstMpegVideoSliceHdr *header = &slice->header;
|
||||
GstMpegVideoPacket *packet = &slice->packet;
|
||||
DXVA_SliceInfo slice_info = { 0, };
|
||||
|
||||
g_assert (packet->offset >= 4);
|
||||
|
||||
slice_info.wHorizontalPosition = header->mb_column;
|
||||
slice_info.wVerticalPosition = header->mb_row;
|
||||
/* including start code 4 bytes */
|
||||
slice_info.dwSliceBitsInBuffer = 8 * (packet->size + 4);
|
||||
slice_info.dwSliceDataLocation = inner->bitstream_buffer.size ();
|
||||
/* XXX: We don't have information about the number of MBs in this slice.
|
||||
* Just store offset here, and actual number will be calculated later */
|
||||
slice_info.wNumberMBsInSlice =
|
||||
(header->mb_row * inner->width_in_mb) + header->mb_column;
|
||||
slice_info.wQuantizerScaleCode = header->quantiser_scale_code;
|
||||
slice_info.wMBbitOffset = header->header_size + 32;
|
||||
|
||||
inner->slice_list.push_back (slice_info);
|
||||
|
||||
size_t pos = inner->bitstream_buffer.size ();
|
||||
inner->bitstream_buffer.resize (pos + packet->size + 4);
|
||||
memcpy (&inner->bitstream_buffer[0] + pos, packet->data + packet->offset - 4,
|
||||
packet->size + 4);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_d3d11_mpeg2_dec_end_picture (GstMpeg2Decoder * decoder,
|
||||
GstMpeg2Picture * picture)
|
||||
{
|
||||
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
||||
GstD3D11Mpeg2DecInner *inner = self->inner;
|
||||
ID3D11VideoDecoderOutputView *view;
|
||||
guint8 view_id = 0xff;
|
||||
GstD3D11DecodeInputStreamArgs input_args;
|
||||
gboolean is_field =
|
||||
picture->structure != GST_MPEG_VIDEO_PICTURE_STRUCTURE_FRAME;
|
||||
guint mb_count = inner->width_in_mb * (inner->height_in_mb >> is_field);
|
||||
|
||||
if (inner->bitstream_buffer.empty ()) {
|
||||
GST_ERROR_OBJECT (self, "No bitstream buffer to submit");
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
view = gst_d3d11_mpeg2_dec_get_output_view_from_picture (self, picture,
|
||||
&view_id);
|
||||
if (!view) {
|
||||
GST_ERROR_OBJECT (self, "current picture does not have output view handle");
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
memset (&input_args, 0, sizeof (GstD3D11DecodeInputStreamArgs));
|
||||
|
||||
DXVA_SliceInfo *first = &inner->slice_list[0];
|
||||
for (size_t i = 0; i < inner->slice_list.size (); i++) {
|
||||
DXVA_SliceInfo *slice = first + i;
|
||||
|
||||
/* Update the number of MBs per slice */
|
||||
if (i == inner->slice_list.size () - 1) {
|
||||
slice->wNumberMBsInSlice = mb_count - slice->wNumberMBsInSlice;
|
||||
} else {
|
||||
DXVA_SliceInfo *next = first + i + 1;
|
||||
slice->wNumberMBsInSlice =
|
||||
next->wNumberMBsInSlice - slice->wNumberMBsInSlice;
|
||||
}
|
||||
}
|
||||
|
||||
input_args.picture_params = &inner->pic_params;
|
||||
input_args.picture_params_size = sizeof (DXVA_PictureParameters);
|
||||
input_args.slice_control = &inner->slice_list[0];
|
||||
input_args.slice_control_size =
|
||||
sizeof (DXVA_SliceInfo) * inner->slice_list.size ();
|
||||
input_args.bitstream = &inner->bitstream_buffer[0];
|
||||
input_args.bitstream_size = inner->bitstream_buffer.size ();
|
||||
if (inner->submit_iq_data) {
|
||||
input_args.inverse_quantization_matrix = &inner->iq_matrix;
|
||||
input_args.inverse_quantization_matrix_size = sizeof (DXVA_QmatrixData);
|
||||
}
|
||||
|
||||
if (!gst_d3d11_decoder_decode_frame (inner->d3d11_decoder, view, &input_args))
|
||||
return GST_FLOW_ERROR;
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_d3d11_mpeg2_dec_output_picture (GstMpeg2Decoder * decoder,
|
||||
GstVideoCodecFrame * frame, GstMpeg2Picture * picture)
|
||||
{
|
||||
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
||||
GstD3D11Mpeg2DecInner *inner = self->inner;
|
||||
GstVideoDecoder *vdec = GST_VIDEO_DECODER (decoder);
|
||||
GstBuffer *view_buffer;
|
||||
|
||||
GST_LOG_OBJECT (self, "Outputting picture %p", picture);
|
||||
|
||||
view_buffer = (GstBuffer *) gst_mpeg2_picture_get_user_data (picture);
|
||||
|
||||
if (!view_buffer) {
|
||||
GST_ERROR_OBJECT (self, "Could not get output view");
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (!gst_d3d11_decoder_process_output (inner->d3d11_decoder, vdec,
|
||||
inner->width, inner->height, view_buffer, &frame->output_buffer)) {
|
||||
GST_ERROR_OBJECT (self, "Failed to copy buffer");
|
||||
goto error;
|
||||
}
|
||||
|
||||
if (picture->buffer_flags != 0) {
|
||||
gboolean interlaced =
|
||||
(picture->buffer_flags & GST_VIDEO_BUFFER_FLAG_INTERLACED) != 0;
|
||||
gboolean tff = (picture->buffer_flags & GST_VIDEO_BUFFER_FLAG_TFF) != 0;
|
||||
|
||||
GST_TRACE_OBJECT (self,
|
||||
"apply buffer flags 0x%x (interlaced %d, top-field-first %d)",
|
||||
picture->buffer_flags, interlaced, tff);
|
||||
GST_BUFFER_FLAG_SET (frame->output_buffer, picture->buffer_flags);
|
||||
}
|
||||
|
||||
gst_mpeg2_picture_unref (picture);
|
||||
|
||||
return gst_video_decoder_finish_frame (vdec, frame);
|
||||
|
||||
error:
|
||||
gst_mpeg2_picture_unref (picture);
|
||||
gst_video_decoder_release_frame (vdec, frame);
|
||||
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
|
||||
void
|
||||
gst_d3d11_mpeg2_dec_register (GstPlugin * plugin, GstD3D11Device * device,
|
||||
guint rank)
|
||||
{
|
||||
GType type;
|
||||
gchar *type_name;
|
||||
gchar *feature_name;
|
||||
guint index = 0;
|
||||
GTypeInfo type_info = {
|
||||
sizeof (GstD3D11Mpeg2DecClass),
|
||||
NULL,
|
||||
NULL,
|
||||
(GClassInitFunc) gst_d3d11_mpeg2_dec_class_init,
|
||||
NULL,
|
||||
NULL,
|
||||
sizeof (GstD3D11Mpeg2Dec),
|
||||
0,
|
||||
(GInstanceInitFunc) gst_d3d11_mpeg2_dec_init,
|
||||
};
|
||||
const GUID *supported_profile = NULL;
|
||||
GstCaps *sink_caps = NULL;
|
||||
GstCaps *src_caps = NULL;
|
||||
|
||||
if (!gst_d3d11_decoder_get_supported_decoder_profile (device,
|
||||
GST_DXVA_CODEC_MPEG2, GST_VIDEO_FORMAT_NV12, &supported_profile)) {
|
||||
GST_INFO_OBJECT (device, "device does not support MPEG-2 video decoding");
|
||||
return;
|
||||
}
|
||||
|
||||
sink_caps = gst_caps_from_string ("video/mpeg, "
|
||||
"mpegversion = (int)2, systemstream = (boolean) false, "
|
||||
"profile = (string) { main, simple }");
|
||||
src_caps = gst_caps_from_string ("video/x-raw("
|
||||
GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY "); video/x-raw");
|
||||
|
||||
/* NOTE: We are supporting only 4:2:0, main or simple profiles */
|
||||
gst_caps_set_simple (src_caps, "format", G_TYPE_STRING, "NV12", NULL);
|
||||
|
||||
gst_caps_set_simple (sink_caps,
|
||||
"width", GST_TYPE_INT_RANGE, 1, 1920,
|
||||
"height", GST_TYPE_INT_RANGE, 1, 1920, NULL);
|
||||
gst_caps_set_simple (src_caps,
|
||||
"width", GST_TYPE_INT_RANGE, 1, 1920,
|
||||
"height", GST_TYPE_INT_RANGE, 1, 1920, NULL);
|
||||
|
||||
type_info.class_data =
|
||||
gst_d3d11_decoder_class_data_new (device, GST_DXVA_CODEC_MPEG2,
|
||||
sink_caps, src_caps);
|
||||
|
||||
type_name = g_strdup ("GstD3D11Mpeg2Dec");
|
||||
feature_name = g_strdup ("d3d11mpeg2dec");
|
||||
|
||||
while (g_type_from_name (type_name)) {
|
||||
index++;
|
||||
g_free (type_name);
|
||||
g_free (feature_name);
|
||||
type_name = g_strdup_printf ("GstD3D11Mpeg2Device%dDec", index);
|
||||
feature_name = g_strdup_printf ("d3d11mpeg2device%ddec", index);
|
||||
}
|
||||
|
||||
type = g_type_register_static (GST_TYPE_MPEG2_DECODER,
|
||||
type_name, &type_info, (GTypeFlags) 0);
|
||||
|
||||
/* make lower rank than default device */
|
||||
if (rank > 0 && index != 0)
|
||||
rank--;
|
||||
|
||||
if (index != 0)
|
||||
gst_element_type_set_skip_documentation (type);
|
||||
|
||||
if (!gst_element_register (plugin, feature_name, rank, type))
|
||||
GST_WARNING ("Failed to register plugin '%s'", type_name);
|
||||
|
||||
g_free (type_name);
|
||||
g_free (feature_name);
|
||||
}
|
||||
Reference in New Issue
Block a user