/* GStreamer * Copyright (C) 2020 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. */ #ifdef HAVE_CONFIG_H #include #endif #include "gstd3d11vp8dec.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_vp8_dec_debug); #define GST_CAT_DEFAULT gst_d3d11_vp8_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_VP8_VLD, 0x90b899ea, 0x3a62, 0x4705, 0x88, 0xb3, 0x8d, 0xf0, 0x4b, 0x27, 0x44, 0xe7); /* reference list 4 + 4 margin */ #define NUM_OUTPUT_VIEW 8 typedef struct _GstD3D11Vp8Dec { GstVp8Decoder parent; GstVideoCodecState *output_state; GstD3D11Device *device; GstD3D11Decoder *d3d11_decoder; guint width, height; GstVideoFormat out_format; gboolean use_d3d11_output; } GstD3D11Vp8Dec; typedef struct _GstD3D11Vp8DecClass { GstVp8DecoderClass parent_class; guint adapter; guint device_id; guint vendor_id; } GstD3D11Vp8DecClass; static GstElementClass *parent_class = NULL; #define GST_D3D11_VP8_DEC(object) ((GstD3D11Vp8Dec *) (object)) #define GST_D3D11_VP8_DEC_GET_CLASS(object) \ (G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstD3D11Vp8DecClass)) static void gst_d3d11_vp8_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static void gst_d3d11_vp8_dec_set_context (GstElement * element, GstContext * context); static gboolean gst_d3d11_vp8_dec_open (GstVideoDecoder * decoder); static gboolean gst_d3d11_vp8_dec_close (GstVideoDecoder * decoder); static gboolean gst_d3d11_vp8_dec_negotiate (GstVideoDecoder * decoder); static gboolean gst_d3d11_vp8_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query); static gboolean gst_d3d11_vp8_dec_src_query (GstVideoDecoder * decoder, GstQuery * query); /* GstVp8Decoder */ static gboolean gst_d3d11_vp8_dec_new_sequence (GstVp8Decoder * decoder, const GstVp8FrameHdr * frame_hdr); static gboolean gst_d3d11_vp8_dec_new_picture (GstVp8Decoder * decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture); static GstFlowReturn gst_d3d11_vp8_dec_output_picture (GstVp8Decoder * decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture); static gboolean gst_d3d11_vp8_dec_start_picture (GstVp8Decoder * decoder, GstVp8Picture * picture); static gboolean gst_d3d11_vp8_dec_decode_picture (GstVp8Decoder * decoder, GstVp8Picture * picture, GstVp8Parser * parser); static gboolean gst_d3d11_vp8_dec_end_picture (GstVp8Decoder * decoder, GstVp8Picture * picture); static void gst_d3d11_vp8_dec_class_init (GstD3D11Vp8DecClass * 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); GstVp8DecoderClass *vp8decoder_class = GST_VP8_DECODER_CLASS (klass); GstD3D11DecoderClassData *cdata = (GstD3D11DecoderClassData *) data; gchar *long_name; gobject_class->get_property = gst_d3d11_vp8_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_vp8_dec_set_context); long_name = g_strdup_printf ("Direct3D11 VP8 %s Decoder", cdata->description); gst_element_class_set_metadata (element_class, long_name, "Codec/Decoder/Video/Hardware", "A Direct3D11 based VP8 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_vp8_dec_open); decoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_close); decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_negotiate); decoder_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_decide_allocation); decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_src_query); vp8decoder_class->new_sequence = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_new_sequence); vp8decoder_class->new_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_new_picture); vp8decoder_class->output_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_output_picture); vp8decoder_class->start_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_start_picture); vp8decoder_class->decode_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_decode_picture); vp8decoder_class->end_picture = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_end_picture); } static void gst_d3d11_vp8_dec_init (GstD3D11Vp8Dec * self) { } static void gst_d3d11_vp8_dec_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstD3D11Vp8DecClass *klass = GST_D3D11_VP8_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_vp8_dec_set_context (GstElement * element, GstContext * context) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (element); GstD3D11Vp8DecClass *klass = GST_D3D11_VP8_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_vp8_dec_open (GstVideoDecoder * decoder) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); GstD3D11Vp8DecClass *klass = GST_D3D11_VP8_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_vp8_dec_close (GstVideoDecoder * decoder) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); gst_clear_object (&self->d3d11_decoder); gst_clear_object (&self->device); return TRUE; } static gboolean gst_d3d11_vp8_dec_negotiate (GstVideoDecoder * decoder) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); GstVp8Decoder *vp8dec = GST_VP8_DECODER (decoder); if (!gst_d3d11_decoder_negotiate (decoder, vp8dec->input_state, self->out_format, self->width, self->height, GST_VIDEO_INTERLACE_MODE_PROGRESSIVE, &self->output_state, &self->use_d3d11_output)) return FALSE; return GST_VIDEO_DECODER_CLASS (parent_class)->negotiate (decoder); } static gboolean gst_d3d11_vp8_dec_decide_allocation (GstVideoDecoder * decoder, GstQuery * query) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); if (!gst_d3d11_decoder_decide_allocation (decoder, query, self->device, GST_D3D11_CODEC_VP8, self->use_d3d11_output)) return FALSE; return GST_VIDEO_DECODER_CLASS (parent_class)->decide_allocation (decoder, query); } static gboolean gst_d3d11_vp8_dec_src_query (GstVideoDecoder * decoder, GstQuery * query) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_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_vp8_dec_new_sequence (GstVp8Decoder * decoder, const GstVp8FrameHdr * frame_hdr) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); static const GUID *profile_guid = &GST_GUID_D3D11_DECODER_PROFILE_VP8_VLD; GstVideoInfo info; GST_LOG_OBJECT (self, "new sequence"); /* FIXME: support I420 */ self->out_format = GST_VIDEO_FORMAT_NV12; self->width = frame_hdr->width; self->height = frame_hdr->height; 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_VP8, &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_vp8_dec_new_picture (GstVp8Decoder * decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); GstBuffer *view_buffer; 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; } GST_LOG_OBJECT (self, "New output view buffer %" GST_PTR_FORMAT, view_buffer); gst_vp8_picture_set_user_data (picture, view_buffer, (GDestroyNotify) gst_buffer_unref); GST_LOG_OBJECT (self, "New VP8 picture %p", picture); return TRUE; } static GstFlowReturn gst_d3d11_vp8_dec_output_picture (GstVp8Decoder * decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); GstVideoDecoder *vdec = GST_VIDEO_DECODER (decoder); GstBuffer *output_buffer = NULL; GstBuffer *view_buffer; g_assert (picture->frame_hdr.show_frame); GST_LOG_OBJECT (self, "Outputting picture %p", picture); view_buffer = (GstBuffer *) gst_vp8_picture_get_user_data (picture); if (!view_buffer) { GST_ERROR_OBJECT (self, "Could not get output view"); goto error; } /* 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) && vdec->input_segment.rate > 0) { 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 (vdec); } if (!output_buffer) { GST_ERROR_OBJECT (self, "Couldn't allocate output buffer"); goto error; } frame->output_buffer = output_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"); goto error; } gst_vp8_picture_unref (picture); return gst_video_decoder_finish_frame (vdec, frame); error: gst_video_decoder_drop_frame (vdec, frame); gst_vp8_picture_unref (picture); return GST_FLOW_ERROR; } static ID3D11VideoDecoderOutputView * gst_d3d11_vp8_dec_get_output_view_from_picture (GstD3D11Vp8Dec * self, GstVp8Picture * picture) { GstBuffer *view_buffer; ID3D11VideoDecoderOutputView *view; view_buffer = (GstBuffer *) gst_vp8_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_vp8_dec_start_picture (GstVp8Decoder * decoder, GstVp8Picture * picture) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); ID3D11VideoDecoderOutputView *view; view = gst_d3d11_vp8_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_vp8_dec_copy_frame_params (GstD3D11Vp8Dec * self, GstVp8Picture * picture, GstVp8Parser * parser, DXVA_PicParams_VP8 * params) { const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr; gint i; /* 0: keyframe, 1: inter */ params->frame_type = !frame_hdr->key_frame; params->version = frame_hdr->version; params->show_frame = frame_hdr->show_frame; params->clamp_type = frame_hdr->clamping_type; params->filter_type = frame_hdr->filter_type; params->filter_level = frame_hdr->loop_filter_level; params->sharpness_level = frame_hdr->sharpness_level; params->mode_ref_lf_delta_enabled = parser->mb_lf_adjust.loop_filter_adj_enable; params->mode_ref_lf_delta_update = parser->mb_lf_adjust.mode_ref_lf_delta_update; for (i = 0; i < 4; i++) { params->ref_lf_deltas[i] = parser->mb_lf_adjust.ref_frame_delta[i]; params->mode_lf_deltas[i] = parser->mb_lf_adjust.mb_mode_delta[i]; } params->log2_nbr_of_dct_partitions = frame_hdr->log2_nbr_of_dct_partitions; params->base_qindex = frame_hdr->quant_indices.y_ac_qi; params->y1dc_delta_q = frame_hdr->quant_indices.y_dc_delta; params->y2dc_delta_q = frame_hdr->quant_indices.y2_dc_delta; params->y2ac_delta_q = frame_hdr->quant_indices.y2_ac_delta; params->uvdc_delta_q = frame_hdr->quant_indices.uv_dc_delta; params->uvac_delta_q = frame_hdr->quant_indices.uv_ac_delta; params->ref_frame_sign_bias_golden = frame_hdr->sign_bias_golden; params->ref_frame_sign_bias_altref = frame_hdr->sign_bias_alternate; params->refresh_entropy_probs = frame_hdr->refresh_entropy_probs; memcpy (params->vp8_coef_update_probs, frame_hdr->token_probs.prob, sizeof (frame_hdr->token_probs.prob)); params->mb_no_coeff_skip = frame_hdr->mb_no_skip_coeff; params->prob_skip_false = frame_hdr->prob_skip_false; params->prob_intra = frame_hdr->prob_intra; params->prob_last = frame_hdr->prob_last; params->prob_golden = frame_hdr->prob_gf; memcpy (params->intra_16x16_prob, frame_hdr->mode_probs.y_prob, sizeof (frame_hdr->mode_probs.y_prob)); memcpy (params->intra_chroma_prob, frame_hdr->mode_probs.uv_prob, sizeof (frame_hdr->mode_probs.uv_prob)); memcpy (params->vp8_mv_update_probs, frame_hdr->mv_probs.prob, sizeof (frame_hdr->mv_probs.prob)); } static void gst_d3d11_vp8_dec_copy_reference_frames (GstD3D11Vp8Dec * self, DXVA_PicParams_VP8 * params) { GstVp8Decoder *decoder = GST_VP8_DECODER (self); ID3D11VideoDecoderOutputView *view; if (decoder->alt_ref_picture) { view = gst_d3d11_vp8_dec_get_output_view_from_picture (self, decoder->alt_ref_picture); if (!view) { GST_ERROR_OBJECT (self, "picture does not have output view handle"); return; } params->alt_fb_idx.Index7Bits = gst_d3d11_decoder_get_output_view_index (view); } else { params->alt_fb_idx.bPicEntry = 0xff; } if (decoder->golden_ref_picture) { view = gst_d3d11_vp8_dec_get_output_view_from_picture (self, decoder->golden_ref_picture); if (!view) { GST_ERROR_OBJECT (self, "picture does not have output view handle"); return; } params->gld_fb_idx.Index7Bits = gst_d3d11_decoder_get_output_view_index (view); } else { params->gld_fb_idx.bPicEntry = 0xff; } if (decoder->last_picture) { view = gst_d3d11_vp8_dec_get_output_view_from_picture (self, decoder->last_picture); if (!view) { GST_ERROR_OBJECT (self, "picture does not have output view handle"); return; } params->lst_fb_idx.Index7Bits = gst_d3d11_decoder_get_output_view_index (view); } else { params->lst_fb_idx.bPicEntry = 0xff; } } static void gst_d3d11_vp8_dec_copy_segmentation_params (GstD3D11Vp8Dec * self, GstVp8Parser * parser, DXVA_PicParams_VP8 * params) { const GstVp8Segmentation *seg = &parser->segmentation; gint i; params->stVP8Segments.segmentation_enabled = seg->segmentation_enabled; params->stVP8Segments.update_mb_segmentation_map = seg->update_mb_segmentation_map; params->stVP8Segments.update_mb_segmentation_data = seg->update_segment_feature_data; params->stVP8Segments.mb_segement_abs_delta = seg->segment_feature_mode; for (i = 0; i < 4; i++) { params->stVP8Segments.segment_feature_data[0][i] = seg->quantizer_update_value[i]; } for (i = 0; i < 4; i++) { params->stVP8Segments.segment_feature_data[1][i] = seg->lf_update_value[i]; } for (i = 0; i < 3; i++) { params->stVP8Segments.mb_segment_tree_probs[i] = seg->segment_prob[i]; } } static gboolean gst_d3d11_vp8_dec_submit_picture_data (GstD3D11Vp8Dec * self, GstVp8Picture * picture, DXVA_PicParams_VP8 * 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_VP8)); 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_VP8); 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_vp8_dec_decode_picture (GstVp8Decoder * decoder, GstVp8Picture * picture, GstVp8Parser * parser) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder); DXVA_PicParams_VP8 pic_params = { 0, }; ID3D11VideoDecoderOutputView *view; const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr; view = gst_d3d11_vp8_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.first_part_size = frame_hdr->first_part_size; pic_params.width = self->width; pic_params.height = self->height; pic_params.CurrPic.Index7Bits = gst_d3d11_decoder_get_output_view_index (view); pic_params.StatusReportFeedbackNumber = 1; gst_d3d11_vp8_dec_copy_frame_params (self, picture, parser, &pic_params); gst_d3d11_vp8_dec_copy_reference_frames (self, &pic_params); gst_d3d11_vp8_dec_copy_segmentation_params (self, parser, &pic_params); return gst_d3d11_vp8_dec_submit_picture_data (self, picture, &pic_params); } static gboolean gst_d3d11_vp8_dec_end_picture (GstVp8Decoder * decoder, GstVp8Picture * picture) { GstD3D11Vp8Dec *self = GST_D3D11_VP8_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; } GstD3D11Vp8DecResolution; void gst_d3d11_vp8_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 (GstD3D11Vp8DecClass), NULL, NULL, (GClassInitFunc) gst_d3d11_vp8_dec_class_init, NULL, NULL, sizeof (GstD3D11Vp8Dec), 0, (GInstanceInitFunc) gst_d3d11_vp8_dec_init, }; static const GUID *profile_guid = &GST_GUID_D3D11_DECODER_PROFILE_VP8_VLD; /* values were taken from chromium. See supported_profile_helper.cc */ GstD3D11Vp8DecResolution resolutions_to_check[] = { {1920, 1088}, {2560, 1440}, {3840, 2160}, {4096, 2160}, {4096, 2304} }; GstCaps *sink_caps = NULL; GstCaps *src_caps = NULL; guint max_width = 0; guint max_height = 0; guint resolution; DXGI_FORMAT format = DXGI_FORMAT_NV12; if (!gst_d3d11_decoder_get_supported_decoder_profile (decoder, &profile_guid, 1, &profile)) { GST_INFO_OBJECT (device, "device does not support VP8 decoding"); return; } 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-vp8"); src_caps = gst_caps_from_string ("video/x-raw(" GST_CAPS_FEATURE_MEMORY_D3D11_MEMORY "); video/x-raw"); 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 ("GstD3D11Vp8Dec"); feature_name = g_strdup ("d3d11vp8dec"); while (g_type_from_name (type_name)) { index++; g_free (type_name); g_free (feature_name); type_name = g_strdup_printf ("GstD3D11Vp8Device%dDec", index); feature_name = g_strdup_printf ("d3d11vp8device%ddec", index); } type = g_type_register_static (GST_TYPE_VP8_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); }