/* GStreamer * Copyright (C) 2019 Seungha Yang * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. * * NOTE: some of implementations are copied/modified from Chromium code * * Copyright 2015 The Chromium Authors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Google Inc. 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 * OWNER 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 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H #include #endif #include "gstd3d11vp9dec.h" #include "gstd3d11memory.h" #include "gstd3d11bufferpool.h" #include #include /* HACK: to expose dxva data structure on UWP */ #ifdef WINAPI_PARTITION_DESKTOP #undef WINAPI_PARTITION_DESKTOP #endif #define WINAPI_PARTITION_DESKTOP 1 #include #include GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_vp9_dec_debug); #define GST_CAT_DEFAULT gst_d3d11_vp9_dec_debug enum { PROP_0, PROP_ADAPTER, PROP_DEVICE_ID, PROP_VENDOR_ID, }; /* copied from d3d11.h since mingw header doesn't define them */ DEFINE_GUID (GST_GUID_D3D11_DECODER_PROFILE_VP9_VLD_PROFILE0, 0x463707f8, 0xa1d0, 0x4585, 0x87, 0x6d, 0x83, 0xaa, 0x6d, 0x60, 0xb8, 0x9e); DEFINE_GUID (GST_GUID_D3D11_DECODER_PROFILE_VP9_VLD_10BIT_PROFILE2, 0xa4c749ef, 0x6ecf, 0x48aa, 0x84, 0x48, 0x50, 0xa7, 0xa1, 0x16, 0x5f, 0xf7); /* reference list 8 + 4 margin */ #define NUM_OUTPUT_VIEW 12 typedef struct _GstD3D11Vp9Dec { GstVp9Decoder parent; GstVideoCodecState *output_state; GstD3D11Device *device; GstD3D11Decoder *d3d11_decoder; guint width, height; GstVP9Profile profile; GstVideoFormat out_format; gboolean use_d3d11_output; } GstD3D11Vp9Dec; typedef struct _GstD3D11Vp9DecClass { GstVp9DecoderClass parent_class; guint adapter; guint device_id; guint vendor_id; } GstD3D11Vp9DecClass; static GstElementClass *parent_class = NULL; #define GST_D3D11_VP9_DEC(object) ((GstD3D11Vp9Dec *) (object)) #define GST_D3D11_VP9_DEC_GET_CLASS(object) \ (G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstD3D11Vp9DecClass)) static void gst_d3d11_vp9_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_d3d11_vp9_dec_set_context (GstElement * element, GstContext * context); static gboolean gst_d3d11_vp9_dec_open (GstVideoDecoder * decoder); static gboolean gst_d3d11_vp9_dec_close (GstVideoDecoder * decoder); static gboolean gst_d3d11_vp9_dec_negotiate (GstVideoDecoder * decoder); static gboolean gst_d3d11_vp9_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query); static gboolean gst_d3d11_vp9_dec_src_query (GstVideoDecoder * decoder, GstQuery * query); /* GstVp9Decoder */ static gboolean gst_d3d11_vp9_dec_new_sequence (GstVp9Decoder * decoder, const GstVp9FrameHdr * frame_hdr); static gboolean gst_d3d11_vp9_dec_new_picture (GstVp9Decoder * decoder, GstVp9Picture * picture); static GstVp9Picture *gst_d3d11_vp9_dec_duplicate_picture (GstVp9Decoder * decoder, GstVp9Picture * picture); static GstFlowReturn gst_d3d11_vp9_dec_output_picture (GstVp9Decoder * decoder, GstVp9Picture * picture); static gboolean gst_d3d11_vp9_dec_start_picture (GstVp9Decoder * decoder, GstVp9Picture * picture); static gboolean gst_d3d11_vp9_dec_decode_picture (GstVp9Decoder * decoder, GstVp9Picture * picture, GstVp9Dpb * dpb); static gboolean gst_d3d11_vp9_dec_end_picture (GstVp9Decoder * decoder, GstVp9Picture * picture); static void gst_d3d11_vp9_dec_class_init (GstD3D11Vp9DecClass * klass, gpointer data) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GstElementClass *element_class = GST_ELEMENT_CLASS (klass); GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass); GstVp9DecoderClass *vp9decoder_class = GST_VP9_DECODER_CLASS (klass); GstD3D11DecoderClassData *cdata = (GstD3D11DecoderClassData *) data; gchar *long_name; gobject_class->get_property = gst_d3d11_vp9_dec_get_property; g_object_class_install_property (gobject_class, PROP_ADAPTER, g_param_spec_uint ("adapter", "Adapter", "DXGI Adapter index for creating device", 0, G_MAXUINT32, cdata->adapter, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_DEVICE_ID, g_param_spec_uint ("device-id", "Device Id", "DXGI Device ID", 0, G_MAXUINT32, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_VENDOR_ID, g_param_spec_uint ("vendor-id", "Vendor Id", "DXGI Vendor ID", 0, G_MAXUINT32, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); parent_class = g_type_class_peek_parent (klass); klass->adapter = cdata->adapter; klass->device_id = cdata->device_id; klass->vendor_id = cdata->vendor_id; element_class->set_context = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_set_context); long_name = g_strdup_printf ("Direct3D11 VP9 %s Decoder", cdata->description); gst_element_class_set_metadata (element_class, long_name, "Codec/Decoder/Video/Hardware", "A Direct3D11 based VP9 video decoder", "Seungha Yang "); g_free (long_name); gst_element_class_add_pad_template (element_class, gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, cdata->sink_caps)); gst_element_class_add_pad_template (element_class, gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, cdata->src_caps)); gst_d3d11_decoder_class_data_free (cdata); decoder_class->open = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_open); decoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_close); decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_negotiate); decoder_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_decide_allocation); decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_src_query); vp9decoder_class->new_sequence = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_new_sequence); vp9decoder_class->new_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_new_picture); vp9decoder_class->duplicate_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_duplicate_picture); vp9decoder_class->output_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_output_picture); vp9decoder_class->start_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_start_picture); vp9decoder_class->decode_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_decode_picture); vp9decoder_class->end_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp9_dec_end_picture); } static void gst_d3d11_vp9_dec_init (GstD3D11Vp9Dec * self) { } static void gst_d3d11_vp9_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstD3D11Vp9DecClass *klass = GST_D3D11_VP9_DEC_GET_CLASS (object); switch (prop_id) { case PROP_ADAPTER: g_value_set_uint (value, klass->adapter); break; case PROP_DEVICE_ID: g_value_set_uint (value, klass->device_id); break; case PROP_VENDOR_ID: g_value_set_uint (value, klass->vendor_id); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_d3d11_vp9_dec_set_context (GstElement * element, GstContext * context) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (element); GstD3D11Vp9DecClass *klass = GST_D3D11_VP9_DEC_GET_CLASS (self); gst_d3d11_handle_set_context (element, context, klass->adapter, &self->device); GST_ELEMENT_CLASS (parent_class)->set_context (element, context); } static gboolean gst_d3d11_vp9_dec_open (GstVideoDecoder * decoder) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); GstD3D11Vp9DecClass *klass = GST_D3D11_VP9_DEC_GET_CLASS (self); if (!gst_d3d11_ensure_element_data (GST_ELEMENT_CAST (self), klass->adapter, &self->device)) { GST_ERROR_OBJECT (self, "Cannot create d3d11device"); return FALSE; } self->d3d11_decoder = gst_d3d11_decoder_new (self->device); if (!self->d3d11_decoder) { GST_ERROR_OBJECT (self, "Cannot create d3d11 decoder"); gst_clear_object (&self->device); return FALSE; } return TRUE; } static gboolean gst_d3d11_vp9_dec_close (GstVideoDecoder * decoder) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); gst_clear_object (&self->d3d11_decoder); gst_clear_object (&self->device); return TRUE; } static gboolean gst_d3d11_vp9_dec_negotiate (GstVideoDecoder * decoder) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); GstVp9Decoder *vp9dec = GST_VP9_DECODER (decoder); if (!gst_d3d11_decoder_negotiate (decoder, vp9dec->input_state, self->out_format, self->width, self->height, &self->output_state, &self->use_d3d11_output)) return FALSE; return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder); } static gboolean gst_d3d11_vp9_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); if (!gst_d3d11_decoder_decide_allocation (decoder, query, self->device, GST_D3D11_CODEC_VP9, self->use_d3d11_output)) return FALSE; return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder, query); } static gboolean gst_d3d11_vp9_dec_src_query (GstVideoDecoder * decoder, GstQuery * query) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CONTEXT: if (gst_d3d11_handle_context_query (GST_ELEMENT (decoder), query, self->device)) { return TRUE; } break; default: break; } return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query); } static gboolean gst_d3d11_vp9_dec_new_sequence (GstVp9Decoder * decoder, const GstVp9FrameHdr * frame_hdr) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); gboolean modified = FALSE; static const GUID *profile0_guid = &GST_GUID_D3D11_DECODER_PROFILE_VP9_VLD_PROFILE0; static const GUID *profile2_guid = &GST_GUID_D3D11_DECODER_PROFILE_VP9_VLD_10BIT_PROFILE2; GST_LOG_OBJECT (self, "new sequence"); if (self->width < frame_hdr->width || self->height < frame_hdr->height) { self->width = frame_hdr->width; self->height = frame_hdr->height; GST_INFO_OBJECT (self, "resolution changed %dx%d", self->width, self->height); modified = TRUE; } if (self->profile != frame_hdr->profile) { self->profile = frame_hdr->profile; GST_INFO_OBJECT (self, "profile changed %d", self->profile); modified = TRUE; } if (modified || !self->d3d11_decoder->opened) { const GUID *profile_guid = NULL; GstVideoInfo info; self->out_format = GST_VIDEO_FORMAT_UNKNOWN; if (self->profile == GST_VP9_PROFILE_0) { self->out_format = GST_VIDEO_FORMAT_NV12; profile_guid = profile0_guid; } else if (self->profile == GST_VP9_PROFILE_2) { self->out_format = GST_VIDEO_FORMAT_P010_10LE; profile_guid = profile2_guid; } if (self->out_format == GST_VIDEO_FORMAT_UNKNOWN) { GST_ERROR_OBJECT (self, "Could not support profile %d", self->profile); return FALSE; } gst_video_info_set_format (&info, self->out_format, self->width, self->height); gst_d3d11_decoder_reset (self->d3d11_decoder); if (!gst_d3d11_decoder_open (self->d3d11_decoder, GST_D3D11_CODEC_VP9, &info, self->width, self->height, NUM_OUTPUT_VIEW, &profile_guid, 1)) { GST_ERROR_OBJECT (self, "Failed to create decoder"); return FALSE; } if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) { GST_ERROR_OBJECT (self, "Failed to negotiate with downstream"); return FALSE; } } return TRUE; } static gboolean gst_d3d11_vp9_dec_new_picture (GstVp9Decoder * decoder, GstVp9Picture * picture) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); GstBuffer *view_buffer; GstD3D11Memory *mem; view_buffer = gst_d3d11_decoder_get_output_view_buffer (self->d3d11_decoder); if (!view_buffer) { GST_ERROR_OBJECT (self, "No available output view buffer"); return FALSE; } mem = (GstD3D11Memory *) gst_buffer_peek_memory (view_buffer, 0); GST_LOG_OBJECT (self, "New output view buffer %" GST_PTR_FORMAT " (index %d)", view_buffer, mem->subresource_index); gst_vp9_picture_set_user_data (picture, view_buffer, (GDestroyNotify) gst_buffer_unref); GST_LOG_OBJECT (self, "New VP9 picture %p", picture); return TRUE; } static GstVp9Picture * gst_d3d11_vp9_dec_duplicate_picture (GstVp9Decoder * decoder, GstVp9Picture * picture) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); GstBuffer *view_buffer; GstD3D11Memory *mem; GstVp9Picture *new_picture; view_buffer = gst_vp9_picture_get_user_data (picture); if (!view_buffer) { GST_ERROR_OBJECT (self, "Parent picture does not have output view buffer"); return NULL; } new_picture = gst_vp9_picture_new (); new_picture->frame_hdr = picture->frame_hdr; mem = (GstD3D11Memory *) gst_buffer_peek_memory (view_buffer, 0); GST_LOG_OBJECT (self, "Duplicate output with buffer %" GST_PTR_FORMAT " (index %d)", view_buffer, mem->subresource_index); gst_vp9_picture_set_user_data (new_picture, gst_buffer_ref (view_buffer), (GDestroyNotify) gst_buffer_unref); return new_picture; } static GstFlowReturn gst_d3d11_vp9_dec_output_picture (GstVp9Decoder * decoder, GstVp9Picture * picture) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); GstVideoCodecFrame *frame = NULL; GstBuffer *output_buffer = NULL; GstFlowReturn ret; GstBuffer *view_buffer; GST_LOG_OBJECT (self, "Outputting picture %p", picture); view_buffer = (GstBuffer *) gst_vp9_picture_get_user_data (picture); if (!view_buffer) { GST_ERROR_OBJECT (self, "Could not get output view"); return GST_FLOW_ERROR; } frame = gst_video_decoder_get_frame (GST_VIDEO_DECODER (self), picture->system_frame_number); if (!picture->frame_hdr.show_frame) { GST_LOG_OBJECT (self, "Decode only picture %p", picture); if (frame) { GST_VIDEO_CODEC_FRAME_SET_DECODE_ONLY (frame); return gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame); } else { GST_WARNING_OBJECT (self, "Failed to find codec frame for picture %p", picture); return GST_FLOW_OK; } } /* if downstream is d3d11 element and forward playback case, * expose our decoder view without copy. In case of reverse playback, however, * we cannot do that since baseclass will store the decoded buffer * up to gop size but our dpb pool cannot be increased */ if (self->use_d3d11_output && gst_d3d11_decoder_supports_direct_rendering (self->d3d11_decoder) && GST_VIDEO_DECODER (self)->input_segment.rate > 0 && GST_VIDEO_INFO_WIDTH (&self->output_state->info) == picture->frame_hdr.width && GST_VIDEO_INFO_HEIGHT (&self->output_state->info) == picture->frame_hdr.height) { GstMemory *mem; output_buffer = gst_buffer_ref (view_buffer); mem = gst_buffer_peek_memory (output_buffer, 0); GST_MINI_OBJECT_FLAG_SET (mem, GST_D3D11_MEMORY_TRANSFER_NEED_DOWNLOAD); } else { output_buffer = gst_video_decoder_allocate_output_buffer (GST_VIDEO_DECODER (self)); } if (!output_buffer) { GST_ERROR_OBJECT (self, "Couldn't allocate output buffer"); return GST_FLOW_ERROR; } if (!frame) { GST_WARNING_OBJECT (self, "Failed to find codec frame for picture %p", picture); GST_BUFFER_PTS (output_buffer) = picture->pts; GST_BUFFER_DTS (output_buffer) = GST_CLOCK_TIME_NONE; GST_BUFFER_DURATION (output_buffer) = GST_CLOCK_TIME_NONE; } else { frame->output_buffer = output_buffer; GST_BUFFER_PTS (output_buffer) = GST_BUFFER_PTS (frame->input_buffer); GST_BUFFER_DTS (output_buffer) = GST_CLOCK_TIME_NONE; GST_BUFFER_DURATION (output_buffer) = GST_BUFFER_DURATION (frame->input_buffer); } if (!gst_d3d11_decoder_process_output (self->d3d11_decoder, &self->output_state->info, picture->frame_hdr.width, picture->frame_hdr.height, view_buffer, output_buffer)) { GST_ERROR_OBJECT (self, "Failed to copy buffer"); if (frame) gst_video_decoder_drop_frame (GST_VIDEO_DECODER (self), frame); else gst_buffer_unref (output_buffer); return GST_FLOW_ERROR; } GST_LOG_OBJECT (self, "Finish frame %" GST_TIME_FORMAT, GST_TIME_ARGS (GST_BUFFER_PTS (output_buffer))); if (frame) { ret = gst_video_decoder_finish_frame (GST_VIDEO_DECODER (self), frame); } else { ret = gst_pad_push (GST_VIDEO_DECODER_SRC_PAD (self), output_buffer); } return ret; } static GstD3D11DecoderOutputView * gst_d3d11_vp9_dec_get_output_view_from_picture (GstD3D11Vp9Dec * self, GstVp9Picture * picture) { GstBuffer *view_buffer; GstD3D11DecoderOutputView *view; view_buffer = (GstBuffer *) gst_vp9_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 (self->d3d11_decoder, view_buffer); if (!view) { GST_DEBUG_OBJECT (self, "current picture does not have output view handle"); return NULL; } return view; } static gboolean gst_d3d11_vp9_dec_start_picture (GstVp9Decoder * decoder, GstVp9Picture * picture) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); GstD3D11DecoderOutputView *view; view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, picture); if (!view) { GST_ERROR_OBJECT (self, "current picture does not have output view handle"); return FALSE; } GST_TRACE_OBJECT (self, "Begin frame"); if (!gst_d3d11_decoder_begin_frame (self->d3d11_decoder, view, 0, NULL)) { GST_ERROR_OBJECT (self, "Failed to begin frame"); return FALSE; } return TRUE; } static void gst_d3d11_vp9_dec_copy_frame_params (GstD3D11Vp9Dec * self, GstVp9Picture * picture, DXVA_PicParams_VP9 * params) { const GstVp9FrameHdr *frame_hdr = &picture->frame_hdr; params->profile = frame_hdr->profile; params->frame_type = frame_hdr->frame_type; params->show_frame = frame_hdr->show_frame; params->error_resilient_mode = frame_hdr->error_resilient_mode; params->subsampling_x = picture->subsampling_x; params->subsampling_y = picture->subsampling_y; params->refresh_frame_context = frame_hdr->refresh_frame_context; params->frame_parallel_decoding_mode = frame_hdr->frame_parallel_decoding_mode; params->intra_only = frame_hdr->intra_only; params->frame_context_idx = frame_hdr->frame_context_idx; params->reset_frame_context = frame_hdr->reset_frame_context; if (frame_hdr->frame_type == GST_VP9_KEY_FRAME) params->allow_high_precision_mv = 0; else params->allow_high_precision_mv = frame_hdr->allow_high_precision_mv; params->width = frame_hdr->width; params->height = frame_hdr->height; params->BitDepthMinus8Luma = picture->bit_depth - 8; params->BitDepthMinus8Chroma = picture->bit_depth - 8; params->interp_filter = frame_hdr->mcomp_filter_type; params->log2_tile_cols = frame_hdr->log2_tile_columns; params->log2_tile_rows = frame_hdr->log2_tile_rows; #ifndef GST_DISABLE_GST_DEBUG GST_TRACE_OBJECT (self, "Dump frame params"); /* set before calling this function */ GST_TRACE_OBJECT (self, "\tCurrPic.Index7Bits: %d", params->CurrPic.Index7Bits); GST_TRACE_OBJECT (self, "\tuncompressed_header_size_byte_aligned: %d", params->uncompressed_header_size_byte_aligned); GST_TRACE_OBJECT (self, "\tfirst_partition_size: %d", params->first_partition_size); GST_TRACE_OBJECT (self, "\tprofile: %d", params->profile); GST_TRACE_OBJECT (self, "\tframe_type: %d", params->frame_type); GST_TRACE_OBJECT (self, "\tshow_frame: %d", params->show_frame); GST_TRACE_OBJECT (self, "\terror_resilient_mode: %d", params->error_resilient_mode); GST_TRACE_OBJECT (self, "\tsubsampling_x: %d", params->subsampling_x); GST_TRACE_OBJECT (self, "\tsubsampling_t: %d", params->subsampling_y); GST_TRACE_OBJECT (self, "\trefresh_frame_context: %d", params->refresh_frame_context); GST_TRACE_OBJECT (self, "\tframe_parallel_decoding_mode: %d", params->frame_parallel_decoding_mode); GST_TRACE_OBJECT (self, "\tintra_only: %d", params->intra_only); GST_TRACE_OBJECT (self, "\tframe_context_idx: %d", params->frame_context_idx); GST_TRACE_OBJECT (self, "\treset_frame_context: %d", params->reset_frame_context); GST_TRACE_OBJECT (self, "\tallow_high_precision_mv: %d", params->allow_high_precision_mv); GST_TRACE_OBJECT (self, "\twidth: %d", params->width); GST_TRACE_OBJECT (self, "\theight: %d", params->height); GST_TRACE_OBJECT (self, "\tBitDepthMinus8Luma: %d", params->BitDepthMinus8Luma); GST_TRACE_OBJECT (self, "\tBitDepthMinus8Chroma: %d", params->BitDepthMinus8Chroma); GST_TRACE_OBJECT (self, "\tinterp_filter: %d", params->interp_filter); GST_TRACE_OBJECT (self, "\tlog2_tile_cols: %d", params->log2_tile_cols); GST_TRACE_OBJECT (self, "\tlog2_tile_rows: %d", params->log2_tile_rows); #endif } static void gst_d3d11_vp9_dec_copy_reference_frames (GstD3D11Vp9Dec * self, GstVp9Picture * picture, GstVp9Dpb * dpb, DXVA_PicParams_VP9 * params) { gint i; for (i = 0; i < GST_VP9_REF_FRAMES; i++) { if (dpb->pic_list[i]) { GstVp9Picture *other_pic = dpb->pic_list[i]; GstD3D11DecoderOutputView *view; view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, other_pic); if (!view) { GST_ERROR_OBJECT (self, "picture does not have output view handle"); return; } params->ref_frame_map[i].Index7Bits = view->view_id; params->ref_frame_coded_width[i] = picture->frame_hdr.width; params->ref_frame_coded_height[i] = picture->frame_hdr.height; } else { params->ref_frame_map[i].bPicEntry = 0xff; params->ref_frame_coded_width[i] = 0; params->ref_frame_coded_height[i] = 0; } } #ifndef GST_DISABLE_GST_DEBUG GST_TRACE_OBJECT (self, "Dump reference frames"); for (i = 0; i < GST_VP9_REF_FRAMES; i++) { GST_TRACE_OBJECT (self, "\t[%d] ref_frame_map.Index7Bits: %d", i, params->ref_frame_map[i].Index7Bits); GST_TRACE_OBJECT (self, "\t[%d] ref_frame_coded_width: %d", i, params->ref_frame_coded_width[i]); GST_TRACE_OBJECT (self, "\t[%d] ref_frame_coded_height: %d", i, params->ref_frame_coded_height[i]); } #endif } static void gst_d3d11_vp9_dec_copy_frame_refs (GstD3D11Vp9Dec * self, GstVp9Picture * picture, DXVA_PicParams_VP9 * params) { const GstVp9FrameHdr *frame_hdr = &picture->frame_hdr; gint i; for (i = 0; i < GST_VP9_REFS_PER_FRAME; i++) { params->frame_refs[i] = params->ref_frame_map[frame_hdr->ref_frame_indices[i]]; } for (i = 0; i < GST_VP9_REFS_PER_FRAME; i++) { params->ref_frame_sign_bias[i + 1] = frame_hdr->ref_frame_sign_bias[i]; } #ifndef GST_DISABLE_GST_DEBUG GST_TRACE_OBJECT (self, "Dump frame refs"); for (i = 0; i < GST_VP9_REFS_PER_FRAME; i++) { GST_TRACE_OBJECT (self, "\t[%d] ref_frame_indices: %d", i, frame_hdr->ref_frame_indices[i]); GST_TRACE_OBJECT (self, "\t[%d] frame_refs.Index7Bits: %d", i, params->frame_refs[i].Index7Bits); GST_TRACE_OBJECT (self, "\t[%d] ref_frame_sign_bias: %d", i, params->ref_frame_sign_bias[i + 1]); } #endif } static void gst_d3d11_vp9_dec_copy_loop_filter_params (GstD3D11Vp9Dec * self, GstVp9Picture * picture, DXVA_PicParams_VP9 * params) { const GstVp9FrameHdr *frame_hdr = &picture->frame_hdr; const GstVp9LoopFilter *loopfilter = &frame_hdr->loopfilter; gint i; params->filter_level = loopfilter->filter_level; params->sharpness_level = loopfilter->sharpness_level; params->mode_ref_delta_enabled = loopfilter->mode_ref_delta_enabled; params->mode_ref_delta_update = loopfilter->mode_ref_delta_update; for (i = 0; i < GST_VP9_MAX_REF_LF_DELTAS; i++) { params->ref_deltas[i] = loopfilter->ref_deltas[i]; } for (i = 0; i < GST_VP9_MAX_MODE_LF_DELTAS; i++) { params->mode_deltas[i] = loopfilter->mode_deltas[i]; } #ifndef GST_DISABLE_GST_DEBUG GST_TRACE_OBJECT (self, "Dump loop filter params"); GST_TRACE_OBJECT (self, "\tfilter_level: %d", params->filter_level); GST_TRACE_OBJECT (self, "\tsharpness_level: %d", params->sharpness_level); GST_TRACE_OBJECT (self, "\tmode_ref_delta_enabled: %d", params->mode_ref_delta_enabled); GST_TRACE_OBJECT (self, "\tmode_ref_delta_update: %d", params->mode_ref_delta_update); for (i = 0; i < GST_VP9_MAX_REF_LF_DELTAS; i++) GST_TRACE_OBJECT (self, "\tref_deltas[%d]: %d", i, params->ref_deltas[i]); for (i = 0; i < GST_VP9_MAX_MODE_LF_DELTAS; i++) GST_TRACE_OBJECT (self, "\tmode_deltas[%d]: %d", i, params->mode_deltas[i]); #endif } static void gst_d3d11_vp9_dec_copy_quant_params (GstD3D11Vp9Dec * self, GstVp9Picture * picture, DXVA_PicParams_VP9 * params) { const GstVp9FrameHdr *frame_hdr = &picture->frame_hdr; const GstVp9QuantIndices *quant_indices = &frame_hdr->quant_indices; params->base_qindex = quant_indices->y_ac_qi; params->y_dc_delta_q = quant_indices->y_dc_delta; params->uv_dc_delta_q = quant_indices->uv_dc_delta; params->uv_ac_delta_q = quant_indices->uv_ac_delta; #ifndef GST_DISABLE_GST_DEBUG GST_TRACE_OBJECT (self, "Dump quantization params"); GST_TRACE_OBJECT (self, "\tbase_qindex: %d", params->base_qindex); GST_TRACE_OBJECT (self, "\ty_dc_delta_q: %d", params->y_dc_delta_q); GST_TRACE_OBJECT (self, "\tuv_dc_delta_q: %d", params->uv_dc_delta_q); GST_TRACE_OBJECT (self, "\tuv_ac_delta_q: %d", params->uv_ac_delta_q); #endif } static void gst_d3d11_vp9_dec_copy_segmentation_params (GstD3D11Vp9Dec * self, GstVp9Picture * picture, DXVA_PicParams_VP9 * params) { const GstVp9FrameHdr *frame_hdr = &picture->frame_hdr; const GstVp9SegmentationInfo *seg = &frame_hdr->segmentation; gint i; params->stVP9Segments.enabled = seg->enabled; params->stVP9Segments.update_map = seg->update_map; params->stVP9Segments.temporal_update = seg->temporal_update; params->stVP9Segments.abs_delta = seg->abs_delta; for (i = 0; i < GST_VP9_SEG_TREE_PROBS; i++) params->stVP9Segments.tree_probs[i] = seg->tree_probs[i]; for (i = 0; i < GST_VP9_PREDICTION_PROBS; i++) params->stVP9Segments.pred_probs[i] = seg->pred_probs[i]; for (i = 0; i < GST_VP9_MAX_SEGMENTS; i++) { params->stVP9Segments.feature_mask[i] = 0; if (seg->data[i].alternate_quantizer_enabled) params->stVP9Segments.feature_mask[i] |= (1 << 0); if (seg->data[i].alternate_loop_filter_enabled) params->stVP9Segments.feature_mask[i] |= (1 << 1); if (seg->data[i].reference_frame_enabled) params->stVP9Segments.feature_mask[i] |= (1 << 2); if (seg->data[i].reference_skip) params->stVP9Segments.feature_mask[i] |= (1 << 3); params->stVP9Segments.feature_data[i][0] = seg->data[i].alternate_quantizer; params->stVP9Segments.feature_data[i][1] = seg->data[i].alternate_loop_filter; params->stVP9Segments.feature_data[i][2] = seg->data[i].reference_frame; params->stVP9Segments.feature_data[i][3] = 0; } #ifndef GST_DISABLE_GST_DEBUG GST_TRACE_OBJECT (self, "Dump segmentation params"); GST_TRACE_OBJECT (self, "\tenabled: %d", params->stVP9Segments.enabled); GST_TRACE_OBJECT (self, "\tupdate_map: %d", params->stVP9Segments.update_map); GST_TRACE_OBJECT (self, "\ttemporal_update: %d", params->stVP9Segments.temporal_update); GST_TRACE_OBJECT (self, "\tabs_delta: %d", params->stVP9Segments.abs_delta); for (i = 0; i < GST_VP9_SEG_TREE_PROBS; i++) GST_TRACE_OBJECT (self, "\ttree_probs[%d]: %d", i, params->stVP9Segments.tree_probs[i]); for (i = 0; i < GST_VP9_PREDICTION_PROBS; i++) GST_TRACE_OBJECT (self, "\tpred_probs[%d]: %d", i, params->stVP9Segments.pred_probs[i]); for (i = 0; i < GST_VP9_MAX_SEGMENTS; i++) { gint j; GST_TRACE_OBJECT (self, "\tfeature_mask[%d]: 0x%x", i, params->stVP9Segments.feature_mask[i]); for (j = 0; j < 4; j++) GST_TRACE_OBJECT (self, "\tfeature_data[%d][%d]: %d", i, j, params->stVP9Segments.feature_data[i][j]); } #endif } static gboolean gst_d3d11_vp9_dec_submit_picture_data (GstD3D11Vp9Dec * self, GstVp9Picture * picture, DXVA_PicParams_VP9 * params) { guint d3d11_buffer_size; gpointer d3d11_buffer; gsize buffer_offset = 0; gboolean is_first = TRUE; GST_TRACE_OBJECT (self, "Getting picture params buffer"); if (!gst_d3d11_decoder_get_decoder_buffer (self->d3d11_decoder, D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS, &d3d11_buffer_size, &d3d11_buffer)) { GST_ERROR_OBJECT (self, "Failed to get decoder buffer for picture parameters"); return FALSE; } memcpy (d3d11_buffer, params, sizeof (DXVA_PicParams_VP9)); GST_TRACE_OBJECT (self, "Release picture param decoder buffer"); if (!gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder, D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS)) { GST_ERROR_OBJECT (self, "Failed to release decoder buffer"); return FALSE; } if (!picture->data || !picture->size) { GST_ERROR_OBJECT (self, "No data to submit"); return FALSE; } GST_TRACE_OBJECT (self, "Submit total %" G_GSIZE_FORMAT " bytes", picture->size); while (buffer_offset < picture->size) { gsize bytes_to_copy = picture->size - buffer_offset; gsize written_buffer_size; gboolean is_last = TRUE; DXVA_Slice_VPx_Short slice_short = { 0, }; D3D11_VIDEO_DECODER_BUFFER_DESC buffer_desc[3] = { 0, }; gboolean bad_aligned_bitstream_buffer = FALSE; GST_TRACE_OBJECT (self, "Getting bitstream buffer"); if (!gst_d3d11_decoder_get_decoder_buffer (self->d3d11_decoder, D3D11_VIDEO_DECODER_BUFFER_BITSTREAM, &d3d11_buffer_size, &d3d11_buffer)) { GST_ERROR_OBJECT (self, "Couldn't get bitstream buffer"); goto error; } if ((d3d11_buffer_size & 127) != 0) { GST_WARNING_OBJECT (self, "The size of bitstream buffer is not 128 bytes aligned"); bad_aligned_bitstream_buffer = TRUE; } if (bytes_to_copy > d3d11_buffer_size) { /* if the size of this slice is larger than the size of remaining d3d11 * decoder bitstream memory, write the data up to the remaining d3d11 * decoder bitstream memory size and the rest would be written to the * next d3d11 bitstream memory */ bytes_to_copy = d3d11_buffer_size; is_last = FALSE; } memcpy (d3d11_buffer, picture->data + buffer_offset, bytes_to_copy); written_buffer_size = bytes_to_copy; /* DXVA2 spec is saying that written bitstream data must be 128 bytes * aligned if the bitstream buffer contains end of frame * (i.e., wBadSliceChopping == 0 or 2) */ if (is_last) { guint padding = MIN (GST_ROUND_UP_128 (bytes_to_copy) - bytes_to_copy, d3d11_buffer_size - bytes_to_copy); if (padding) { GST_TRACE_OBJECT (self, "Written bitstream buffer size %" G_GSIZE_FORMAT " is not 128 bytes aligned, add padding %d bytes", bytes_to_copy, padding); memset ((guint8 *) d3d11_buffer + bytes_to_copy, 0, padding); written_buffer_size += padding; } } GST_TRACE_OBJECT (self, "Release bitstream buffer"); if (!gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder, D3D11_VIDEO_DECODER_BUFFER_BITSTREAM)) { GST_ERROR_OBJECT (self, "Failed to release bitstream buffer"); goto error; } slice_short.BSNALunitDataLocation = 0; slice_short.SliceBytesInBuffer = (UINT) written_buffer_size; /* wBadSliceChopping: (dxva spec.) * 0: All bits for the slice are located within the corresponding * bitstream data buffer * 1: The bitstream data buffer contains the start of the slice, * but not the entire slice, because the buffer is full * 2: The bitstream data buffer contains the end of the slice. * It does not contain the start of the slice, because the start of * the slice was located in the previous bitstream data buffer. * 3: The bitstream data buffer does not contain the start of the slice * (because the start of the slice was located in the previous * bitstream data buffer), and it does not contain the end of the slice * (because the current bitstream data buffer is also full). */ if (is_last && is_first) { slice_short.wBadSliceChopping = 0; } else if (!is_last && is_first) { slice_short.wBadSliceChopping = 1; } else if (is_last && !is_first) { slice_short.wBadSliceChopping = 2; } else { slice_short.wBadSliceChopping = 3; } GST_TRACE_OBJECT (self, "Getting slice control buffer"); if (!gst_d3d11_decoder_get_decoder_buffer (self->d3d11_decoder, D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL, &d3d11_buffer_size, &d3d11_buffer)) { GST_ERROR_OBJECT (self, "Couldn't get slice control buffer"); goto error; } memcpy (d3d11_buffer, &slice_short, sizeof (DXVA_Slice_VPx_Short)); GST_TRACE_OBJECT (self, "Release slice control buffer"); if (!gst_d3d11_decoder_release_decoder_buffer (self->d3d11_decoder, D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL)) { GST_ERROR_OBJECT (self, "Failed to release slice control buffer"); goto error; } buffer_desc[0].BufferType = D3D11_VIDEO_DECODER_BUFFER_PICTURE_PARAMETERS; buffer_desc[0].DataOffset = 0; buffer_desc[0].DataSize = sizeof (DXVA_PicParams_VP9); buffer_desc[1].BufferType = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL; buffer_desc[1].DataOffset = 0; buffer_desc[1].DataSize = sizeof (DXVA_Slice_VPx_Short); if (!bad_aligned_bitstream_buffer && (written_buffer_size & 127) != 0) { GST_WARNING_OBJECT (self, "Written bitstream buffer size %" G_GSIZE_FORMAT " is not 128 bytes aligned", written_buffer_size); } buffer_desc[2].BufferType = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM; buffer_desc[2].DataOffset = 0; buffer_desc[2].DataSize = written_buffer_size; if (!gst_d3d11_decoder_submit_decoder_buffers (self->d3d11_decoder, 3, buffer_desc)) { GST_ERROR_OBJECT (self, "Couldn't submit decoder buffers"); goto error; } buffer_offset += bytes_to_copy; is_first = FALSE; } return TRUE; error: return FALSE; } static gboolean gst_d3d11_vp9_dec_decode_picture (GstVp9Decoder * decoder, GstVp9Picture * picture, GstVp9Dpb * dpb) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); DXVA_PicParams_VP9 pic_params = { 0, }; GstD3D11DecoderOutputView *view; view = gst_d3d11_vp9_dec_get_output_view_from_picture (self, picture); if (!view) { GST_ERROR_OBJECT (self, "current picture does not have output view handle"); return FALSE; } pic_params.CurrPic.Index7Bits = view->view_id; pic_params.uncompressed_header_size_byte_aligned = picture->frame_hdr.frame_header_length_in_bytes; pic_params.first_partition_size = picture->frame_hdr.first_partition_size; pic_params.StatusReportFeedbackNumber = 1; gst_d3d11_vp9_dec_copy_frame_params (self, picture, &pic_params); gst_d3d11_vp9_dec_copy_reference_frames (self, picture, dpb, &pic_params); gst_d3d11_vp9_dec_copy_frame_refs (self, picture, &pic_params); gst_d3d11_vp9_dec_copy_loop_filter_params (self, picture, &pic_params); gst_d3d11_vp9_dec_copy_quant_params (self, picture, &pic_params); gst_d3d11_vp9_dec_copy_segmentation_params (self, picture, &pic_params); return gst_d3d11_vp9_dec_submit_picture_data (self, picture, &pic_params); } static gboolean gst_d3d11_vp9_dec_end_picture (GstVp9Decoder * decoder, GstVp9Picture * picture) { GstD3D11Vp9Dec *self = GST_D3D11_VP9_DEC (decoder); if (!gst_d3d11_decoder_end_frame (self->d3d11_decoder)) { GST_ERROR_OBJECT (self, "Failed to EndFrame"); return FALSE; } return TRUE; } typedef struct { guint width; guint height; } GstD3D11Vp9DecResolution; void gst_d3d11_vp9_dec_register (GstPlugin * plugin, GstD3D11Device * device, GstD3D11Decoder * decoder, guint rank) { GType type; gchar *type_name; gchar *feature_name; guint index = 0; guint i; GUID profile; GTypeInfo type_info = { sizeof (GstD3D11Vp9DecClass), NULL, NULL, (GClassInitFunc) gst_d3d11_vp9_dec_class_init, NULL, NULL, sizeof (GstD3D11Vp9Dec), 0, (GInstanceInitFunc) gst_d3d11_vp9_dec_init, }; static const GUID *profile2_guid = &GST_GUID_D3D11_DECODER_PROFILE_VP9_VLD_10BIT_PROFILE2; static const GUID *profile0_guid = &GST_GUID_D3D11_DECODER_PROFILE_VP9_VLD_PROFILE0; /* values were taken from chromium. See supported_profile_helper.cc */ GstD3D11Vp9DecResolution resolutions_to_check[] = { {4096, 2160}, {4096, 2304}, {7680, 4320}, {8192, 4320}, {8192, 8192} }; GstCaps *sink_caps = NULL; GstCaps *src_caps = NULL; guint max_width = 0; guint max_height = 0; guint resolution; gboolean have_profile2 = FALSE; gboolean have_profile0 = FALSE; DXGI_FORMAT format = DXGI_FORMAT_UNKNOWN; have_profile2 = gst_d3d11_decoder_get_supported_decoder_profile (decoder, &profile2_guid, 1, &profile); if (!have_profile2) { GST_DEBUG_OBJECT (device, "decoder does not support VP9_VLD_10BIT_PROFILE2"); } else { have_profile2 &= gst_d3d11_decoder_supports_format (decoder, &profile, DXGI_FORMAT_P010); have_profile2 &= gst_d3d11_decoder_supports_format (decoder, &profile, DXGI_FORMAT_NV12); if (!have_profile2) { GST_FIXME_OBJECT (device, "device does not support P010 and/or NV12 format"); } } have_profile0 = gst_d3d11_decoder_get_supported_decoder_profile (decoder, &profile0_guid, 1, &profile); if (!have_profile0) { GST_DEBUG_OBJECT (device, "decoder does not support VP9_VLD_PROFILE0"); } else { have_profile0 = gst_d3d11_decoder_supports_format (decoder, &profile, DXGI_FORMAT_NV12); if (!have_profile0) { GST_FIXME_OBJECT (device, "device does not support NV12 format"); } } if (!have_profile2 && !have_profile0) { GST_INFO_OBJECT (device, "device does not support VP9 decoding"); return; } if (have_profile0) { profile = *profile0_guid; format = DXGI_FORMAT_NV12; } else { profile = *profile2_guid; format = DXGI_FORMAT_P010; } for (i = 0; i < G_N_ELEMENTS (resolutions_to_check); i++) { if (gst_d3d11_decoder_supports_resolution (decoder, &profile, format, resolutions_to_check[i].width, resolutions_to_check[i].height)) { max_width = resolutions_to_check[i].width; max_height = resolutions_to_check[i].height; GST_DEBUG_OBJECT (device, "device support resolution %dx%d", max_width, max_height); } else { break; } } if (max_width == 0 || max_height == 0) { GST_WARNING_OBJECT (device, "Couldn't query supported resolution"); return; } sink_caps = gst_caps_from_string ("video/x-vp9, " "framerate = " GST_VIDEO_FPS_RANGE); src_caps = gst_caps_from_string ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY "), " "framerate = " GST_VIDEO_FPS_RANGE ";" "video/x-raw, " "framerate = " GST_VIDEO_FPS_RANGE); if (have_profile2) { GValue format_list = G_VALUE_INIT; GValue format_value = G_VALUE_INIT; g_value_init (&format_list, GST_TYPE_LIST); g_value_init (&format_value, G_TYPE_STRING); g_value_set_string (&format_value, "NV12"); gst_value_list_append_and_take_value (&format_list, &format_value); g_value_init (&format_value, G_TYPE_STRING); g_value_set_string (&format_value, "P010_10LE"); gst_value_list_append_and_take_value (&format_list, &format_value); gst_caps_set_value (src_caps, "format", &format_list); g_value_unset (&format_list); } else { gst_caps_set_simple (src_caps, "format", G_TYPE_STRING, "NV12", NULL); } /* To cover both landscape and portrait, select max value */ resolution = MAX (max_width, max_height); gst_caps_set_simple (sink_caps, "width", GST_TYPE_INT_RANGE, 64, resolution, "height", GST_TYPE_INT_RANGE, 64, resolution, NULL); gst_caps_set_simple (src_caps, "width", GST_TYPE_INT_RANGE, 64, resolution, "height", GST_TYPE_INT_RANGE, 64, resolution, NULL); type_info.class_data = gst_d3d11_decoder_class_data_new (device, sink_caps, src_caps); type_name = g_strdup ("GstD3D11Vp9Dec"); feature_name = g_strdup ("d3d11vp9dec"); while (g_type_from_name (type_name)) { index++; g_free (type_name); g_free (feature_name); type_name = g_strdup_printf ("GstD3D11Vp9Device%dDec", index); feature_name = g_strdup_printf ("d3d11vp9device%ddec", index); } type = g_type_register_static (GST_TYPE_VP9_DECODER, type_name, &type_info, 0); /* make lower rank than default device */ if (rank > 0 && index != 0) rank--; 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); }