mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
Build gir for documentation Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5481>
407 lines
13 KiB
C++
407 lines
13 KiB
C++
/* GStreamer
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* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstdxvavp8decoder.h"
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#include <string.h>
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#include <vector>
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#include "gstdxvatypedef.h"
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GST_DEBUG_CATEGORY_STATIC (gst_dxva_vp8_decoder_debug);
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#define GST_CAT_DEFAULT gst_dxva_vp8_decoder_debug
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/* *INDENT-OFF* */
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struct _GstDxvaVp8DecoderPrivate
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{
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DXVA_PicParams_VP8 pic_params;
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DXVA_Slice_VPx_Short slice;
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std::vector<guint8> bitstream_buffer;
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GPtrArray *ref_pics = nullptr;
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gint width = 0;
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gint height = 0;
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};
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/* *INDENT-ON* */
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static void gst_dxva_vp8_decoder_finalize (GObject * object);
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static gboolean gst_dxva_vp8_decoder_start (GstVideoDecoder * decoder);
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static GstFlowReturn gst_dxva_vp8_decoder_new_sequence (GstVp8Decoder * decoder,
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const GstVp8FrameHdr * frame_hdr, gint max_dpb_size);
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static GstFlowReturn gst_dxva_vp8_decoder_new_picture (GstVp8Decoder * decoder,
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GstVideoCodecFrame * frame, GstVp8Picture * picture);
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static GstFlowReturn
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gst_dxva_vp8_decoder_decode_picture (GstVp8Decoder * decoder,
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GstVp8Picture * picture, GstVp8Parser * parser);
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static GstFlowReturn gst_dxva_vp8_decoder_end_picture (GstVp8Decoder * decoder,
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GstVp8Picture * picture);
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static GstFlowReturn gst_dxva_vp8_decoder_output_picture (GstVp8Decoder *
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decoder, GstVideoCodecFrame * frame, GstVp8Picture * picture);
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#define gst_dxva_vp8_decoder_parent_class parent_class
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstDxvaVp8Decoder,
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gst_dxva_vp8_decoder, GST_TYPE_VP8_DECODER,
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GST_DEBUG_CATEGORY_INIT (gst_dxva_vp8_decoder_debug, "dxvavp8decoder",
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0, "dxvavp8decoder"));
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static void
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gst_dxva_vp8_decoder_class_init (GstDxvaVp8DecoderClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
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GstVp8DecoderClass *vp8decoder_class = GST_VP8_DECODER_CLASS (klass);
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object_class->finalize = gst_dxva_vp8_decoder_finalize;
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decoder_class->start = GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_start);
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vp8decoder_class->new_sequence =
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GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_new_sequence);
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vp8decoder_class->new_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_new_picture);
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vp8decoder_class->decode_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_decode_picture);
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vp8decoder_class->end_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_end_picture);
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vp8decoder_class->output_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_vp8_decoder_output_picture);
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}
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static void
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gst_dxva_vp8_decoder_init (GstDxvaVp8Decoder * self)
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{
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self->priv = new GstDxvaVp8DecoderPrivate ();
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self->priv->ref_pics = g_ptr_array_new ();
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}
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static void
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gst_dxva_vp8_decoder_finalize (GObject * object)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (object);
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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g_ptr_array_unref (priv->ref_pics);
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delete self->priv;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_dxva_vp8_decoder_reset (GstDxvaVp8Decoder * self)
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{
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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priv->width = 0;
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priv->height = 0;
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}
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static gboolean
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gst_dxva_vp8_decoder_start (GstVideoDecoder * decoder)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
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gst_dxva_vp8_decoder_reset (self);
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return GST_VIDEO_DECODER_CLASS (parent_class)->start (decoder);
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}
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static GstFlowReturn
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gst_dxva_vp8_decoder_new_sequence (GstVp8Decoder * decoder,
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const GstVp8FrameHdr * frame_hdr, gint max_dpb_size)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
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GstVideoInfo info;
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GstFlowReturn ret;
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GST_LOG_OBJECT (self, "new sequence");
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priv->width = frame_hdr->width;
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priv->height = frame_hdr->height;
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gst_video_info_set_format (&info,
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GST_VIDEO_FORMAT_NV12, frame_hdr->width, frame_hdr->height);
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g_assert (klass->configure);
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ret = klass->configure (self, decoder->input_state, &info, 0, 0,
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frame_hdr->width, frame_hdr->height, max_dpb_size);
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if (ret == GST_FLOW_OK &&
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!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
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GST_WARNING_OBJECT (self, "Couldn't negotiate with new sequence");
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ret = GST_FLOW_NOT_NEGOTIATED;
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}
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return ret;
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}
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static GstFlowReturn
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gst_dxva_vp8_decoder_new_picture (GstVp8Decoder * decoder,
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GstVideoCodecFrame * frame, GstVp8Picture * picture)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
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GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
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g_assert (klass->new_picture);
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return klass->new_picture (self, GST_CODEC_PICTURE (picture));
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}
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static void
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gst_dxva_vp8_decoder_copy_frame_params (GstDxvaVp8Decoder * self,
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GstVp8Picture * picture, GstVp8Parser * parser, DXVA_PicParams_VP8 * params)
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{
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const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr;
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gint i;
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/* 0: keyframe, 1: inter */
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params->frame_type = !frame_hdr->key_frame;
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params->version = frame_hdr->version;
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params->show_frame = frame_hdr->show_frame;
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params->clamp_type = frame_hdr->clamping_type;
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params->filter_type = frame_hdr->filter_type;
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params->filter_level = frame_hdr->loop_filter_level;
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params->sharpness_level = frame_hdr->sharpness_level;
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params->mode_ref_lf_delta_enabled =
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parser->mb_lf_adjust.loop_filter_adj_enable;
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params->mode_ref_lf_delta_update =
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parser->mb_lf_adjust.mode_ref_lf_delta_update;
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for (i = 0; i < 4; i++) {
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params->ref_lf_deltas[i] = parser->mb_lf_adjust.ref_frame_delta[i];
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params->mode_lf_deltas[i] = parser->mb_lf_adjust.mb_mode_delta[i];
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}
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params->log2_nbr_of_dct_partitions = frame_hdr->log2_nbr_of_dct_partitions;
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params->base_qindex = frame_hdr->quant_indices.y_ac_qi;
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params->y1dc_delta_q = frame_hdr->quant_indices.y_dc_delta;
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params->y2dc_delta_q = frame_hdr->quant_indices.y2_dc_delta;
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params->y2ac_delta_q = frame_hdr->quant_indices.y2_ac_delta;
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params->uvdc_delta_q = frame_hdr->quant_indices.uv_dc_delta;
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params->uvac_delta_q = frame_hdr->quant_indices.uv_ac_delta;
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params->ref_frame_sign_bias_golden = frame_hdr->sign_bias_golden;
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params->ref_frame_sign_bias_altref = frame_hdr->sign_bias_alternate;
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params->refresh_entropy_probs = frame_hdr->refresh_entropy_probs;
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memcpy (params->vp8_coef_update_probs, frame_hdr->token_probs.prob,
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sizeof (frame_hdr->token_probs.prob));
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params->mb_no_coeff_skip = frame_hdr->mb_no_skip_coeff;
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params->prob_skip_false = frame_hdr->prob_skip_false;
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params->prob_intra = frame_hdr->prob_intra;
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params->prob_last = frame_hdr->prob_last;
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params->prob_golden = frame_hdr->prob_gf;
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memcpy (params->intra_16x16_prob, frame_hdr->mode_probs.y_prob,
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sizeof (frame_hdr->mode_probs.y_prob));
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memcpy (params->intra_chroma_prob, frame_hdr->mode_probs.uv_prob,
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sizeof (frame_hdr->mode_probs.uv_prob));
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memcpy (params->vp8_mv_update_probs, frame_hdr->mv_probs.prob,
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sizeof (frame_hdr->mv_probs.prob));
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}
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static gboolean
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gst_dxva_vp8_decoder_copy_reference_frames (GstDxvaVp8Decoder * self,
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DXVA_PicParams_VP8 * params)
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{
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GstVp8Decoder *decoder = GST_VP8_DECODER (self);
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
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guint8 id;
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params->alt_fb_idx.bPicEntry = 0xff;
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if (decoder->alt_ref_picture) {
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id = klass->get_picture_id (self,
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GST_CODEC_PICTURE (decoder->alt_ref_picture));
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if (id != 0xff) {
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params->alt_fb_idx.Index7Bits = id;
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g_ptr_array_add (priv->ref_pics, decoder->alt_ref_picture);
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}
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}
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params->gld_fb_idx.bPicEntry = 0xff;
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if (decoder->golden_ref_picture) {
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id = klass->get_picture_id (self,
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GST_CODEC_PICTURE (decoder->golden_ref_picture));
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if (id != 0xff) {
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params->gld_fb_idx.Index7Bits = id;
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g_ptr_array_add (priv->ref_pics, decoder->golden_ref_picture);
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}
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}
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params->lst_fb_idx.bPicEntry = 0xff;
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if (decoder->last_picture) {
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id = klass->get_picture_id (self,
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GST_CODEC_PICTURE (decoder->last_picture));
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if (id != 0xff) {
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params->gld_fb_idx.Index7Bits = id;
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g_ptr_array_add (priv->ref_pics, decoder->last_picture);
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}
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}
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return TRUE;
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}
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static void
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gst_dxva_vp8_decoder_copy_segmentation_params (GstDxvaVp8Decoder * self,
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GstVp8Parser * parser, DXVA_PicParams_VP8 * params)
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{
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const GstVp8Segmentation *seg = &parser->segmentation;
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gint i;
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params->stVP8Segments.segmentation_enabled = seg->segmentation_enabled;
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params->stVP8Segments.update_mb_segmentation_map =
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seg->update_mb_segmentation_map;
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params->stVP8Segments.update_mb_segmentation_data =
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seg->update_segment_feature_data;
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params->stVP8Segments.mb_segement_abs_delta = seg->segment_feature_mode;
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for (i = 0; i < 4; i++) {
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params->stVP8Segments.segment_feature_data[0][i] =
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seg->quantizer_update_value[i];
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}
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for (i = 0; i < 4; i++) {
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params->stVP8Segments.segment_feature_data[1][i] = seg->lf_update_value[i];
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}
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for (i = 0; i < 3; i++) {
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params->stVP8Segments.mb_segment_tree_probs[i] = seg->segment_prob[i];
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}
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}
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static GstFlowReturn
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gst_dxva_vp8_decoder_decode_picture (GstVp8Decoder * decoder,
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GstVp8Picture * picture, GstVp8Parser * parser)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
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DXVA_PicParams_VP8 *pic_params = &priv->pic_params;
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DXVA_Slice_VPx_Short *slice = &priv->slice;
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const GstVp8FrameHdr *frame_hdr = &picture->frame_hdr;
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GstCodecPicture *codec_picture = GST_CODEC_PICTURE (picture);
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GstFlowReturn ret;
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guint8 picture_id;
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g_assert (klass->start_picture);
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g_assert (klass->get_picture_id);
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ret = klass->start_picture (self, codec_picture, &picture_id);
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if (ret != GST_FLOW_OK)
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return ret;
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priv->bitstream_buffer.resize (0);
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g_ptr_array_set_size (priv->ref_pics, 0);
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memset (pic_params, 0, sizeof (DXVA_PicParams_VP8));
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pic_params->first_part_size = frame_hdr->first_part_size;
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pic_params->width = priv->width;
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pic_params->height = priv->height;
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pic_params->CurrPic.Index7Bits = picture_id;
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pic_params->StatusReportFeedbackNumber = 1;
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if (!gst_dxva_vp8_decoder_copy_reference_frames (self, pic_params))
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return GST_FLOW_ERROR;
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gst_dxva_vp8_decoder_copy_frame_params (self, picture, parser, pic_params);
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gst_dxva_vp8_decoder_copy_segmentation_params (self, parser, pic_params);
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priv->bitstream_buffer.resize (picture->size);
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memcpy (&priv->bitstream_buffer[0], picture->data, picture->size);
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slice->BSNALunitDataLocation = 0;
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slice->SliceBytesInBuffer = priv->bitstream_buffer.size ();
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slice->wBadSliceChopping = 0;
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_dxva_vp8_decoder_end_picture (GstVp8Decoder * decoder,
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GstVp8Picture * picture)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
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size_t bitstream_buffer_size;
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size_t bitstream_pos;
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GstDxvaDecodingArgs args;
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if (priv->bitstream_buffer.empty ()) {
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GST_ERROR_OBJECT (self, "No bitstream buffer to submit");
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return GST_FLOW_ERROR;
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}
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memset (&args, 0, sizeof (GstDxvaDecodingArgs));
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bitstream_pos = priv->bitstream_buffer.size ();
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bitstream_buffer_size = GST_ROUND_UP_128 (bitstream_pos);
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if (bitstream_buffer_size > bitstream_pos) {
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size_t padding = bitstream_buffer_size - bitstream_pos;
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/* As per DXVA spec, total amount of bitstream buffer size should be
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* 128 bytes aligned. If actual data is not multiple of 128 bytes,
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* the last slice data needs to be zero-padded */
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priv->bitstream_buffer.resize (bitstream_buffer_size, 0);
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priv->slice.SliceBytesInBuffer += padding;
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}
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args.picture_params = &priv->pic_params;
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args.picture_params_size = sizeof (DXVA_PicParams_VP8);
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args.slice_control = &priv->slice;
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args.slice_control_size = sizeof (DXVA_Slice_VPx_Short);
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args.bitstream = &priv->bitstream_buffer[0];
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args.bitstream_size = priv->bitstream_buffer.size ();
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g_assert (klass->end_picture);
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return klass->end_picture (self, GST_CODEC_PICTURE (picture),
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priv->ref_pics, &args);
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}
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static GstFlowReturn
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gst_dxva_vp8_decoder_output_picture (GstVp8Decoder * decoder,
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GstVideoCodecFrame * frame, GstVp8Picture * picture)
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{
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GstDxvaVp8Decoder *self = GST_DXVA_VP8_DECODER (decoder);
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GstDxvaVp8DecoderPrivate *priv = self->priv;
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GstDxvaVp8DecoderClass *klass = GST_DXVA_VP8_DECODER_GET_CLASS (self);
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g_assert (klass->output_picture);
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GST_LOG_OBJECT (self, "Outputting picture %p", picture);
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return klass->output_picture (self, frame, GST_CODEC_PICTURE (picture),
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(GstVideoBufferFlags) 0, priv->width, priv->height);
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}
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