gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11vp8dec.cpp

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/* GStreamer
* Copyright (C) 2020 Seungha Yang <seungha@centricular.com>
*
* 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.
*/
/**
* SECTION:element-d3d11vp8dec
* @title: d3d11vp8dec
*
* A Direct3D11/DXVA based VP8 video decoder
*
* ## Example launch line
* ```
* gst-launch-1.0 filesrc location=/path/to/vp8/file ! parsebin ! d3d11vp8dec ! d3d11videosink
* ```
*
* Since: 1.18
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gstd3d11vp8dec.h"
#include <gst/codecs/gstvp8decoder.h>
#include <string.h>
#include <vector>
/* HACK: to expose dxva data structure on UWP */
#ifdef WINAPI_PARTITION_DESKTOP
#undef WINAPI_PARTITION_DESKTOP
#endif
#define WINAPI_PARTITION_DESKTOP 1
#include <d3d9.h>
#include <dxva.h>
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_vp8_dec_debug);
#define GST_CAT_DEFAULT gst_d3d11_vp8_dec_debug
/* *INDENT-OFF* */
typedef struct _GstD3D11Vp8DecInner
{
GstD3D11Device *device = nullptr;
GstD3D11Decoder *d3d11_decoder = nullptr;
DXVA_PicParams_VP8 pic_params;
DXVA_Slice_VPx_Short slice;
/* In case of VP8, there's only one slice per picture so we don't
* need this bitstream buffer, but this will be used for 128 bytes alignment */
std::vector<guint8> bitstream_buffer;
guint width = 0;
guint height = 0;
GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN;
} GstD3D11Vp8DecInner;
/* *INDENT-ON* */
typedef struct _GstD3D11Vp8Dec
{
GstVp8Decoder parent;
GstD3D11Vp8DecInner *inner;
} GstD3D11Vp8Dec;
typedef struct _GstD3D11Vp8DecClass
{
GstVp8DecoderClass parent_class;
GstD3D11DecoderSubClassData class_data;
} 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_finalize (GObject * object);
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);
static gboolean gst_d3d11_vp8_sink_event (GstVideoDecoder * decoder,
GstEvent * event);
/* GstVp8Decoder */
static GstFlowReturn gst_d3d11_vp8_dec_new_sequence (GstVp8Decoder * decoder,
const GstVp8FrameHdr * frame_hdr, gint max_dpb_size);
static GstFlowReturn gst_d3d11_vp8_dec_new_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture);
static GstFlowReturn gst_d3d11_vp8_dec_start_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture);
static GstFlowReturn gst_d3d11_vp8_dec_decode_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture, GstVp8Parser * parser);
static GstFlowReturn gst_d3d11_vp8_dec_end_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture);
static GstFlowReturn gst_d3d11_vp8_dec_output_picture (GstVp8Decoder *
decoder, GstVideoCodecFrame * frame, 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;
gobject_class->get_property = gst_d3d11_vp8_dec_get_property;
gobject_class->finalize = gst_d3d11_vp8_dec_finalize;
element_class->set_context =
GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_set_context);
parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
gst_d3d11_decoder_class_data_fill_subclass_data (cdata, &klass->class_data);
/**
* GstD3D11Vp8Dec:adapter-luid:
*
* DXGI Adapter LUID for this element
*
* Since: 1.20
*/
gst_d3d11_decoder_proxy_class_init (element_class, cdata,
"Seungha Yang <seungha.yang@navercorp.com>");
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);
decoder_class->sink_event = GST_DEBUG_FUNCPTR (gst_d3d11_vp8_sink_event);
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->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);
vp8decoder_class->output_picture =
GST_DEBUG_FUNCPTR (gst_d3d11_vp8_dec_output_picture);
}
static void
gst_d3d11_vp8_dec_init (GstD3D11Vp8Dec * self)
{
self->inner = new GstD3D11Vp8DecInner ();
}
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);
GstD3D11DecoderSubClassData *cdata = &klass->class_data;
gst_d3d11_decoder_proxy_get_property (object, prop_id, value, pspec, cdata);
}
static void
gst_d3d11_vp8_dec_finalize (GObject * object)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (object);
delete self->inner;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_d3d11_vp8_dec_set_context (GstElement * element, GstContext * context)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (element);
GstD3D11Vp8DecInner *inner = self->inner;
GstD3D11Vp8DecClass *klass = GST_D3D11_VP8_DEC_GET_CLASS (self);
GstD3D11DecoderSubClassData *cdata = &klass->class_data;
gst_d3d11_handle_set_context_for_adapter_luid (element,
context, cdata->adapter_luid, &inner->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);
GstD3D11Vp8DecInner *inner = self->inner;
GstD3D11Vp8DecClass *klass = GST_D3D11_VP8_DEC_GET_CLASS (self);
GstD3D11DecoderSubClassData *cdata = &klass->class_data;
if (!gst_d3d11_decoder_proxy_open (decoder,
cdata, &inner->device, &inner->d3d11_decoder)) {
GST_ERROR_OBJECT (self, "Failed to open decoder");
return FALSE;
}
return TRUE;
}
static gboolean
gst_d3d11_vp8_dec_close (GstVideoDecoder * decoder)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
gst_clear_object (&inner->d3d11_decoder);
gst_clear_object (&inner->device);
return TRUE;
}
static gboolean
gst_d3d11_vp8_dec_negotiate (GstVideoDecoder * decoder)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
if (!gst_d3d11_decoder_negotiate (inner->d3d11_decoder, decoder))
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);
GstD3D11Vp8DecInner *inner = self->inner;
if (!gst_d3d11_decoder_decide_allocation (inner->d3d11_decoder, decoder,
query)) {
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);
GstD3D11Vp8DecInner *inner = self->inner;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:
if (gst_d3d11_handle_context_query (GST_ELEMENT (decoder),
query, inner->device)) {
return TRUE;
}
break;
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->src_query (decoder, query);
}
static gboolean
gst_d3d11_vp8_sink_event (GstVideoDecoder * decoder, GstEvent * event)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
if (inner->d3d11_decoder)
gst_d3d11_decoder_set_flushing (inner->d3d11_decoder, decoder, TRUE);
break;
case GST_EVENT_FLUSH_STOP:
if (inner->d3d11_decoder)
gst_d3d11_decoder_set_flushing (inner->d3d11_decoder, decoder, FALSE);
default:
break;
}
return GST_VIDEO_DECODER_CLASS (parent_class)->sink_event (decoder, event);
}
static GstFlowReturn
gst_d3d11_vp8_dec_new_sequence (GstVp8Decoder * decoder,
const GstVp8FrameHdr * frame_hdr, gint max_dpb_size)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
GstVideoInfo info;
GST_LOG_OBJECT (self, "new sequence");
/* FIXME: support I420 */
inner->out_format = GST_VIDEO_FORMAT_NV12;
inner->width = frame_hdr->width;
inner->height = frame_hdr->height;
gst_video_info_set_format (&info,
inner->out_format, inner->width, inner->height);
if (!gst_d3d11_decoder_configure (inner->d3d11_decoder,
decoder->input_state, &info, 0, 0, inner->width, inner->height,
max_dpb_size)) {
GST_ERROR_OBJECT (self, "Failed to create decoder");
return GST_FLOW_NOT_NEGOTIATED;
}
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
GST_WARNING_OBJECT (self, "Failed to negotiate with downstream");
return GST_FLOW_NOT_NEGOTIATED;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d11_vp8_dec_new_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *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_FLUSHING;
}
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 GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d11_vp8_dec_start_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
inner->bitstream_buffer.resize (0);
return GST_FLOW_OK;
}
static ID3D11VideoDecoderOutputView *
gst_d3d11_vp8_dec_get_output_view_from_picture (GstD3D11Vp8Dec * self,
GstVp8Picture * picture, guint8 * view_id)
{
GstD3D11Vp8DecInner *inner = self->inner;
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 (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 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;
guint8 view_id = 0xff;
if (decoder->alt_ref_picture) {
view = gst_d3d11_vp8_dec_get_output_view_from_picture (self,
decoder->alt_ref_picture, &view_id);
if (!view) {
GST_ERROR_OBJECT (self, "picture does not have output view handle");
return;
}
params->alt_fb_idx.Index7Bits = view_id;
} 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, &view_id);
if (!view) {
GST_ERROR_OBJECT (self, "picture does not have output view handle");
return;
}
params->gld_fb_idx.Index7Bits = view_id;
} 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, &view_id);
if (!view) {
GST_ERROR_OBJECT (self, "picture does not have output view handle");
return;
}
params->lst_fb_idx.Index7Bits = view_id;
} 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 GstFlowReturn
gst_d3d11_vp8_dec_decode_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture, GstVp8Parser * parser)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
DXVA_PicParams_VP8 *pic_params = &inner->pic_params;
DXVA_Slice_VPx_Short *slice = &inner->slice;
ID3D11VideoDecoderOutputView *view;
guint8 view_id = 0xff;
const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr;
view = gst_d3d11_vp8_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_PicParams_VP8));
pic_params->first_part_size = frame_hdr->first_part_size;
pic_params->width = inner->width;
pic_params->height = inner->height;
pic_params->CurrPic.Index7Bits = view_id;
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);
inner->bitstream_buffer.resize (picture->size);
memcpy (&inner->bitstream_buffer[0], picture->data, picture->size);
slice->BSNALunitDataLocation = 0;
slice->SliceBytesInBuffer = inner->bitstream_buffer.size ();
slice->wBadSliceChopping = 0;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_d3d11_vp8_dec_end_picture (GstVp8Decoder * decoder, GstVp8Picture * picture)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
ID3D11VideoDecoderOutputView *view;
guint8 view_id = 0xff;
size_t bitstream_buffer_size;
size_t bitstream_pos;
GstD3D11DecodeInputStreamArgs input_args;
if (inner->bitstream_buffer.empty ()) {
GST_ERROR_OBJECT (self, "No bitstream buffer to submit");
return GST_FLOW_ERROR;
}
view = gst_d3d11_vp8_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));
bitstream_pos = inner->bitstream_buffer.size ();
bitstream_buffer_size = GST_ROUND_UP_128 (bitstream_pos);
if (bitstream_buffer_size > bitstream_pos) {
size_t padding = bitstream_buffer_size - bitstream_pos;
/* As per DXVA spec, total amount of bitstream buffer size should be
* 128 bytes aligned. If actual data is not multiple of 128 bytes,
* the last slice data needs to be zero-padded */
inner->bitstream_buffer.resize (bitstream_buffer_size, 0);
inner->slice.SliceBytesInBuffer += padding;
}
input_args.picture_params = &inner->pic_params;
input_args.picture_params_size = sizeof (DXVA_PicParams_VP8);
input_args.slice_control = &inner->slice;
input_args.slice_control_size = sizeof (DXVA_Slice_VPx_Short);
input_args.bitstream = &inner->bitstream_buffer[0];
input_args.bitstream_size = inner->bitstream_buffer.size ();
return gst_d3d11_decoder_decode_frame (inner->d3d11_decoder,
view, &input_args);
}
static GstFlowReturn
gst_d3d11_vp8_dec_output_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture)
{
GstD3D11Vp8Dec *self = GST_D3D11_VP8_DEC (decoder);
GstD3D11Vp8DecInner *inner = self->inner;
GstVideoDecoder *vdec = GST_VIDEO_DECODER (decoder);
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 (!gst_d3d11_decoder_process_output (inner->d3d11_decoder, vdec,
picture->discont_state, inner->width, inner->height, view_buffer,
&frame->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_vp8_picture_unref (picture);
gst_video_decoder_release_frame (vdec, frame);
return GST_FLOW_ERROR;
}
void
gst_d3d11_vp8_dec_register (GstPlugin * plugin, GstD3D11Device * device,
guint rank)
{
GType type;
gchar *type_name;
gchar *feature_name;
guint index = 0;
guint i;
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,
};
const GUID *profile_guid = NULL;
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 (device,
GST_DXVA_CODEC_VP8, GST_VIDEO_FORMAT_NV12, &profile_guid)) {
GST_INFO_OBJECT (device, "device does not support VP8 decoding");
return;
}
for (i = 0; i < G_N_ELEMENTS (gst_dxva_resolutions); i++) {
if (gst_d3d11_decoder_supports_resolution (device, profile_guid,
format, gst_dxva_resolutions[i].width,
gst_dxva_resolutions[i].height)) {
max_width = gst_dxva_resolutions[i].width;
max_height = gst_dxva_resolutions[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);
type_info.class_data =
gst_d3d11_decoder_class_data_new (device, GST_DXVA_CODEC_VP8,
sink_caps, src_caps, resolution);
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, (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);
}