mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-16 21:36:35 +00:00
e1fd0f620f
AVC and HEVC define crop rectangle and the x/y coordinates might not be zero. This commit will address the non-zero x/y offset coordinates via GstVideoCropMeta if downstream supports the meta and d3d11 memory. Otherwise decoder will copy decoded texture into output frame. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/2624>
847 lines
27 KiB
C++
847 lines
27 KiB
C++
/* GStreamer
|
|
* Copyright (C) 2021 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-d3d11mpeg2dec
|
|
* @title: d3d11mpeg2dec
|
|
*
|
|
* A Direct3D11/DXVA based MPEG-2 video decoder
|
|
*
|
|
* ## Example launch line
|
|
* ```
|
|
* gst-launch-1.0 filesrc location=/path/to/mpeg2/file ! parsebin ! d3d11mpeg2dec ! d3d11videosink
|
|
* ```
|
|
*
|
|
* Since: 1.20
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include "gstd3d11mpeg2dec.h"
|
|
|
|
#include <gst/codecs/gstmpeg2decoder.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_mpeg2_dec_debug);
|
|
#define GST_CAT_DEFAULT gst_d3d11_mpeg2_dec_debug
|
|
|
|
/* *INDENT-OFF* */
|
|
typedef struct _GstD3D11Mpeg2DecInner
|
|
{
|
|
GstD3D11Device *device = nullptr;
|
|
GstD3D11Decoder *d3d11_decoder = nullptr;
|
|
|
|
DXVA_PictureParameters pic_params;
|
|
DXVA_QmatrixData iq_matrix;
|
|
|
|
std::vector<DXVA_SliceInfo> slice_list;
|
|
std::vector<guint8> bitstream_buffer;
|
|
|
|
gboolean submit_iq_data;
|
|
|
|
gint width = 0;
|
|
gint height = 0;
|
|
guint width_in_mb = 0;
|
|
guint height_in_mb = 0;
|
|
GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN;
|
|
GstMpegVideoSequenceHdr seq;
|
|
GstMpegVideoProfile profile = GST_MPEG_VIDEO_PROFILE_MAIN;
|
|
gboolean interlaced = FALSE;
|
|
} GstD3D11Mpeg2DecInner;
|
|
/* *INDENT-ON* */
|
|
|
|
typedef struct _GstD3D11Mpeg2Dec
|
|
{
|
|
GstMpeg2Decoder parent;
|
|
GstD3D11Mpeg2DecInner *inner;
|
|
} GstD3D11Mpeg2Dec;
|
|
|
|
typedef struct _GstD3D11Mpeg2DecClass
|
|
{
|
|
GstMpeg2DecoderClass parent_class;
|
|
GstD3D11DecoderSubClassData class_data;
|
|
} GstD3D11Mpeg2DecClass;
|
|
|
|
static GstElementClass *parent_class = NULL;
|
|
|
|
#define GST_D3D11_MPEG2_DEC(object) ((GstD3D11Mpeg2Dec *) (object))
|
|
#define GST_D3D11_MPEG2_DEC_GET_CLASS(object) \
|
|
(G_TYPE_INSTANCE_GET_CLASS ((object),G_TYPE_FROM_INSTANCE (object),GstD3D11Mpeg2DecClass))
|
|
|
|
static void gst_d3d11_mpeg2_dec_get_property (GObject * object,
|
|
guint prop_id, GValue * value, GParamSpec * pspec);
|
|
static void gst_d3d11_mpeg2_dec_finalize (GObject * object);
|
|
static void gst_d3d11_mpeg2_dec_set_context (GstElement * element,
|
|
GstContext * context);
|
|
|
|
static gboolean gst_d3d11_mpeg2_dec_open (GstVideoDecoder * decoder);
|
|
static gboolean gst_d3d11_mpeg2_dec_close (GstVideoDecoder * decoder);
|
|
static gboolean gst_d3d11_mpeg2_dec_negotiate (GstVideoDecoder * decoder);
|
|
static gboolean gst_d3d11_mpeg2_dec_decide_allocation (GstVideoDecoder *
|
|
decoder, GstQuery * query);
|
|
static gboolean gst_d3d11_mpeg2_dec_src_query (GstVideoDecoder * decoder,
|
|
GstQuery * query);
|
|
static gboolean gst_d3d11_mpeg2_dec_sink_event (GstVideoDecoder * decoder,
|
|
GstEvent * event);
|
|
|
|
/* GstMpeg2Decoder */
|
|
static GstFlowReturn gst_d3d11_mpeg2_dec_new_sequence (GstMpeg2Decoder *
|
|
decoder, const GstMpegVideoSequenceHdr * seq,
|
|
const GstMpegVideoSequenceExt * seq_ext,
|
|
const GstMpegVideoSequenceDisplayExt * seq_display_ext,
|
|
const GstMpegVideoSequenceScalableExt * seq_scalable_ext,
|
|
gint max_dpb_size);
|
|
static GstFlowReturn gst_d3d11_mpeg2_dec_new_picture (GstMpeg2Decoder * decoder,
|
|
GstVideoCodecFrame * frame, GstMpeg2Picture * picture);
|
|
static GstFlowReturn
|
|
gst_d3d11_mpeg2_dec_new_field_picture (GstMpeg2Decoder * decoder,
|
|
GstMpeg2Picture * first_field, GstMpeg2Picture * second_field);
|
|
static GstFlowReturn gst_d3d11_mpeg2_dec_start_picture (GstMpeg2Decoder *
|
|
decoder, GstMpeg2Picture * picture, GstMpeg2Slice * slice,
|
|
GstMpeg2Picture * prev_picture, GstMpeg2Picture * next_picture);
|
|
static GstFlowReturn gst_d3d11_mpeg2_dec_decode_slice (GstMpeg2Decoder *
|
|
decoder, GstMpeg2Picture * picture, GstMpeg2Slice * slice);
|
|
static GstFlowReturn gst_d3d11_mpeg2_dec_end_picture (GstMpeg2Decoder * decoder,
|
|
GstMpeg2Picture * picture);
|
|
static GstFlowReturn gst_d3d11_mpeg2_dec_output_picture (GstMpeg2Decoder *
|
|
decoder, GstVideoCodecFrame * frame, GstMpeg2Picture * picture);
|
|
|
|
static void
|
|
gst_d3d11_mpeg2_dec_class_init (GstD3D11Mpeg2DecClass * 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);
|
|
GstMpeg2DecoderClass *mpeg2decoder_class = GST_MPEG2_DECODER_CLASS (klass);
|
|
GstD3D11DecoderClassData *cdata = (GstD3D11DecoderClassData *) data;
|
|
|
|
gobject_class->get_property = gst_d3d11_mpeg2_dec_get_property;
|
|
gobject_class->finalize = gst_d3d11_mpeg2_dec_finalize;
|
|
|
|
element_class->set_context =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_set_context);
|
|
|
|
parent_class = (GstElementClass *) g_type_class_peek_parent (klass);
|
|
gst_d3d11_decoder_class_data_fill_subclass_data (cdata, &klass->class_data);
|
|
|
|
/**
|
|
* GstD3D11Mpeg2Dec:adapter-luid:
|
|
*
|
|
* DXGI Adapter LUID for this element
|
|
*
|
|
* Since: 1.20
|
|
*/
|
|
gst_d3d11_decoder_proxy_class_init (element_class, cdata,
|
|
"Seungha Yang <seungha@centricular.com>");
|
|
|
|
decoder_class->open = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_open);
|
|
decoder_class->close = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_close);
|
|
decoder_class->negotiate = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_negotiate);
|
|
decoder_class->decide_allocation =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_decide_allocation);
|
|
decoder_class->src_query = GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_src_query);
|
|
decoder_class->sink_event =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_sink_event);
|
|
|
|
mpeg2decoder_class->new_sequence =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_new_sequence);
|
|
mpeg2decoder_class->new_picture =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_new_picture);
|
|
mpeg2decoder_class->new_field_picture =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_new_field_picture);
|
|
mpeg2decoder_class->start_picture =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_start_picture);
|
|
mpeg2decoder_class->decode_slice =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_decode_slice);
|
|
mpeg2decoder_class->end_picture =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_end_picture);
|
|
mpeg2decoder_class->output_picture =
|
|
GST_DEBUG_FUNCPTR (gst_d3d11_mpeg2_dec_output_picture);
|
|
}
|
|
|
|
static void
|
|
gst_d3d11_mpeg2_dec_init (GstD3D11Mpeg2Dec * self)
|
|
{
|
|
self->inner = new GstD3D11Mpeg2DecInner ();
|
|
}
|
|
|
|
static void
|
|
gst_d3d11_mpeg2_dec_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstD3D11Mpeg2DecClass *klass = GST_D3D11_MPEG2_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_mpeg2_dec_finalize (GObject * object)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (object);
|
|
|
|
delete self->inner;
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_d3d11_mpeg2_dec_set_context (GstElement * element, GstContext * context)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (element);
|
|
GstD3D11Mpeg2DecInner *inner = self->inner;
|
|
GstD3D11Mpeg2DecClass *klass = GST_D3D11_MPEG2_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_mpeg2_dec_open (GstVideoDecoder * decoder)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *inner = self->inner;
|
|
GstD3D11Mpeg2DecClass *klass = GST_D3D11_MPEG2_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_mpeg2_dec_close (GstVideoDecoder * decoder)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *inner = self->inner;
|
|
|
|
gst_clear_object (&inner->d3d11_decoder);
|
|
gst_clear_object (&inner->device);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_d3d11_mpeg2_dec_negotiate (GstVideoDecoder * decoder)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *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_mpeg2_dec_decide_allocation (GstVideoDecoder * decoder,
|
|
GstQuery * query)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *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_mpeg2_dec_src_query (GstVideoDecoder * decoder, GstQuery * query)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *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_mpeg2_dec_sink_event (GstVideoDecoder * decoder, GstEvent * event)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *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_mpeg2_dec_new_sequence (GstMpeg2Decoder * decoder,
|
|
const GstMpegVideoSequenceHdr * seq,
|
|
const GstMpegVideoSequenceExt * seq_ext,
|
|
const GstMpegVideoSequenceDisplayExt * seq_display_ext,
|
|
const GstMpegVideoSequenceScalableExt * seq_scalable_ext, gint max_dpb_size)
|
|
{
|
|
GstD3D11Mpeg2Dec *self = GST_D3D11_MPEG2_DEC (decoder);
|
|
GstD3D11Mpeg2DecInner *inner = self->inner;
|
|
gboolean interlaced;
|
|
gboolean modified = FALSE;
|
|
gint width, height;
|
|
GstMpegVideoProfile mpeg_profile;
|
|
|
|
GST_LOG_OBJECT (self, "new sequence");
|
|
|
|
interlaced = seq_ext ? !seq_ext->progressive : FALSE;
|
|
if (inner->interlaced != interlaced) {
|
|
GST_INFO_OBJECT (self, "interlaced sequence change");
|
|
inner->interlaced = interlaced;
|
|
modified = TRUE;
|
|
}
|
|
|
|
width = seq->width;
|
|
height = seq->height;
|
|
if (seq_ext) {
|
|
width = (width & 0x0fff) | ((guint32) seq_ext->horiz_size_ext << 12);
|
|
height = (height & 0x0fff) | ((guint32) seq_ext->vert_size_ext << 12);
|
|
}
|
|
|
|
if (inner->width != width || inner->height != height) {
|
|
GST_INFO_OBJECT (self, "resolution change %dx%d -> %dx%d",
|
|
inner->width, inner->height, width, height);
|
|
inner->width = width;
|
|
inner->height = height;
|
|
inner->width_in_mb = GST_ROUND_UP_16 (width) >> 4;
|
|
inner->height_in_mb = GST_ROUND_UP_16 (height) >> 4;
|
|
modified = TRUE;
|
|
}
|
|
|
|
mpeg_profile = GST_MPEG_VIDEO_PROFILE_MAIN;
|
|
if (seq_ext)
|
|
mpeg_profile = (GstMpegVideoProfile) seq_ext->profile;
|
|
|
|
if (mpeg_profile != GST_MPEG_VIDEO_PROFILE_MAIN &&
|
|
mpeg_profile != GST_MPEG_VIDEO_PROFILE_SIMPLE) {
|
|
GST_ERROR_OBJECT (self, "Cannot support profile %d", mpeg_profile);
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
if (inner->profile != mpeg_profile) {
|
|
GST_INFO_OBJECT (self, "Profile change %d -> %d",
|
|
inner->profile, mpeg_profile);
|
|
inner->profile = mpeg_profile;
|
|
modified = TRUE;
|
|
}
|
|
|
|
if (modified || !gst_d3d11_decoder_is_configured (inner->d3d11_decoder)) {
|
|
GstVideoInfo info;
|
|
|
|
/* FIXME: support I420 */
|
|
inner->out_format = GST_VIDEO_FORMAT_NV12;
|
|
|
|
gst_video_info_set_format (&info,
|
|
inner->out_format, inner->width, inner->height);
|
|
if (inner->interlaced)
|
|
GST_VIDEO_INFO_INTERLACE_MODE (&info) = GST_VIDEO_INTERLACE_MODE_MIXED;
|
|
|
|
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_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);
|
|
|
|
type_info.class_data =
|
|
gst_d3d11_decoder_class_data_new (device, GST_DXVA_CODEC_MPEG2,
|
|
sink_caps, src_caps, 1920);
|
|
|
|
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);
|
|
}
|