gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/dxva/gstdxvavp8decoder.cpp

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/* GStreamer
* Copyright (C) 2023 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstdxvavp8decoder.h"
#include <string.h>
#include <vector>
#include "gstdxvatypedef.h"
GST_DEBUG_CATEGORY_STATIC (gst_dxva_vp8_decoder_debug);
#define GST_CAT_DEFAULT gst_dxva_vp8_decoder_debug
/* *INDENT-OFF* */
struct _GstDxvaVp8DecoderPrivate
{
DXVA_PicParams_VP8 pic_params;
DXVA_Slice_VPx_Short slice;
std::vector<guint8> bitstream_buffer;
GPtrArray *ref_pics = nullptr;
gint width = 0;
gint height = 0;
};
/* *INDENT-ON* */
static void gst_dxva_vp8_decoder_finalize (GObject * object);
static gboolean gst_dxva_vp8_decoder_start (GstVideoDecoder * decoder);
static GstFlowReturn gst_dxva_vp8_decoder_new_sequence (GstVp8Decoder * decoder,
const GstVp8FrameHdr * frame_hdr, gint max_dpb_size);
static GstFlowReturn gst_dxva_vp8_decoder_new_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture);
static GstFlowReturn
gst_dxva_vp8_decoder_decode_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture, GstVp8Parser * parser);
static GstFlowReturn gst_dxva_vp8_decoder_end_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture);
static GstFlowReturn gst_dxva_vp8_decoder_output_picture (GstVp8Decoder *
decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture);
#define gst_dxva_vp8_decoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstDxvaVp8Decoder,
gst_dxva_vp8_decoder, GST_TYPE_VP8_DECODER,
GST_DEBUG_CATEGORY_INIT (gst_dxva_vp8_decoder_debug, "dxvavp8decoder",
0, "dxvavp8decoder"));
static void
gst_dxva_vp8_decoder_class_init (GstDxvaVp8DecoderClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
GstVp8DecoderClass *vp8decoder_class = GST_VP8_DECODER_CLASS (klass);
object_class->finalize = gst_dxva_vp8_decoder_finalize;
decoder_class->start = GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_start);
vp8decoder_class->new_sequence =
GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_new_sequence);
vp8decoder_class->new_picture =
GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_new_picture);
vp8decoder_class->decode_picture =
GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_decode_picture);
vp8decoder_class->end_picture =
GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_end_picture);
vp8decoder_class->output_picture =
GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_output_picture);
}
static void
gst_dxva_vp8_decoder_init (GstDxvaVp8Decoder * self)
{
self->priv = new GstDxvaVp8DecoderPrivate ();
self->priv->ref_pics = g_ptr_array_new ();
}
static void
gst_dxva_vp8_decoder_finalize (GObject * object)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (object);
GstDxvaVp8DecoderPrivate *priv = self->priv;
g_ptr_array_unref (priv->ref_pics);
delete self->priv;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_dxva_vp8_decoder_reset (GstDxvaVp8Decoder * self)
{
GstDxvaVp8DecoderPrivate *priv = self->priv;
priv->width = 0;
priv->height = 0;
}
static gboolean
gst_dxva_vp8_decoder_start (GstVideoDecoder * decoder)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
gst_dxva_vp8_decoder_reset (self);
return GST_VIDEO_DECODER_CLASS (parent_class)->start (decoder);
}
static GstFlowReturn
gst_dxva_vp8_decoder_new_sequence (GstVp8Decoder * decoder,
const GstVp8FrameHdr * frame_hdr, gint max_dpb_size)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
GstDxvaVp8DecoderPrivate *priv = self->priv;
GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
GstVideoInfo info;
GstFlowReturn ret;
GST_LOG_OBJECT (self, "new sequence");
priv->width = frame_hdr->width;
priv->height = frame_hdr->height;
gst_video_info_set_format (&info,
GST_VIDEO_FORMAT_NV12, frame_hdr->width, frame_hdr->height);
g_assert (klass->configure);
ret = klass->configure (self, decoder->input_state, &info, 0, 0,
frame_hdr->width, frame_hdr->height, max_dpb_size);
if (ret == GST_FLOW_OK &&
!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
GST_WARNING_OBJECT (self, "Couldn't negotiate with new sequence");
ret = GST_FLOW_NOT_NEGOTIATED;
}
return ret;
}
static GstFlowReturn
gst_dxva_vp8_decoder_new_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
g_assert (klass->new_picture);
return klass->new_picture (self, GST_CODEC_PICTURE (picture));
}
static void
gst_dxva_vp8_decoder_copy_frame_params (GstDxvaVp8Decoder * 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 gboolean
gst_dxva_vp8_decoder_copy_reference_frames (GstDxvaVp8Decoder * self,
DXVA_PicParams_VP8 * params)
{
GstVp8Decoder *decoder = GST_VP8_DECODER (self);
GstDxvaVp8DecoderPrivate *priv = self->priv;
GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
guint8 id;
params->alt_fb_idx.bPicEntry = 0xff;
if (decoder->alt_ref_picture) {
id = klass->get_picture_id (self,
GST_CODEC_PICTURE (decoder->alt_ref_picture));
if (id != 0xff) {
params->alt_fb_idx.Index7Bits = id;
g_ptr_array_add (priv->ref_pics, decoder->alt_ref_picture);
}
}
params->gld_fb_idx.bPicEntry = 0xff;
if (decoder->golden_ref_picture) {
id = klass->get_picture_id (self,
GST_CODEC_PICTURE (decoder->golden_ref_picture));
if (id != 0xff) {
params->gld_fb_idx.Index7Bits = id;
g_ptr_array_add (priv->ref_pics, decoder->golden_ref_picture);
}
}
params->lst_fb_idx.bPicEntry = 0xff;
if (decoder->last_picture) {
id = klass->get_picture_id (self,
GST_CODEC_PICTURE (decoder->last_picture));
if (id != 0xff) {
params->lst_fb_idx.Index7Bits = id;
g_ptr_array_add (priv->ref_pics, decoder->last_picture);
}
}
return TRUE;
}
static void
gst_dxva_vp8_decoder_copy_segmentation_params (GstDxvaVp8Decoder * 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_dxva_vp8_decoder_decode_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture, GstVp8Parser * parser)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
GstDxvaVp8DecoderPrivate *priv = self->priv;
GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
DXVA_PicParams_VP8 *pic_params = &priv->pic_params;
DXVA_Slice_VPx_Short *slice = &priv->slice;
const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr;
GstCodecPicture *codec_picture = GST_CODEC_PICTURE (picture);
GstFlowReturn ret;
guint8 picture_id;
g_assert (klass->start_picture);
g_assert (klass->get_picture_id);
ret = klass->start_picture (self, codec_picture, &picture_id);
if (ret != GST_FLOW_OK)
return ret;
priv->bitstream_buffer.resize (0);
g_ptr_array_set_size (priv->ref_pics, 0);
memset (pic_params, 0, sizeof (DXVA_PicParams_VP8));
pic_params->first_part_size = frame_hdr->first_part_size;
pic_params->width = priv->width;
pic_params->height = priv->height;
pic_params->CurrPic.Index7Bits = picture_id;
pic_params->StatusReportFeedbackNumber = 1;
if (!gst_dxva_vp8_decoder_copy_reference_frames (self, pic_params))
return GST_FLOW_ERROR;
gst_dxva_vp8_decoder_copy_frame_params (self, picture, parser, pic_params);
gst_dxva_vp8_decoder_copy_segmentation_params (self, parser, pic_params);
priv->bitstream_buffer.resize (picture->size);
memcpy (&priv->bitstream_buffer[0], picture->data, picture->size);
slice->BSNALunitDataLocation = 0;
slice->SliceBytesInBuffer = priv->bitstream_buffer.size ();
slice->wBadSliceChopping = 0;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_dxva_vp8_decoder_end_picture (GstVp8Decoder * decoder,
GstVp8Picture * picture)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
GstDxvaVp8DecoderPrivate *priv = self->priv;
GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
size_t bitstream_buffer_size;
size_t bitstream_pos;
GstDxvaDecodingArgs args;
if (priv->bitstream_buffer.empty ()) {
GST_ERROR_OBJECT (self, "No bitstream buffer to submit");
return GST_FLOW_ERROR;
}
memset (&args, 0, sizeof (GstDxvaDecodingArgs));
bitstream_pos = priv->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 */
priv->bitstream_buffer.resize (bitstream_buffer_size, 0);
priv->slice.SliceBytesInBuffer += padding;
}
args.picture_params = &priv->pic_params;
args.picture_params_size = sizeof (DXVA_PicParams_VP8);
args.slice_control = &priv->slice;
args.slice_control_size = sizeof (DXVA_Slice_VPx_Short);
args.bitstream = &priv->bitstream_buffer[0];
args.bitstream_size = priv->bitstream_buffer.size ();
g_assert (klass->end_picture);
return klass->end_picture (self, GST_CODEC_PICTURE (picture),
priv->ref_pics, &args);
}
static GstFlowReturn
gst_dxva_vp8_decoder_output_picture (GstVp8Decoder * decoder,
GstVideoCodecFrame * frame, GstVp8Picture * picture)
{
GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
GstDxvaVp8DecoderPrivate *priv = self->priv;
GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
g_assert (klass->output_picture);
GST_LOG_OBJECT (self, "Outputting picture %p", picture);
return klass->output_picture (self, frame, GST_CODEC_PICTURE (picture),
(GstVideoBufferFlags) 0, priv->width, priv->height);
}