mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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Build gir for documentation Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5481>
636 lines
21 KiB
C++
636 lines
21 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 "gstdxvah264decoder.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_h264_decoder_debug);
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#define GST_CAT_DEFAULT gst_dxva_h264_decoder_debug
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/* *INDENT-OFF* */
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struct _GstDxvaH264DecoderPrivate
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{
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DXVA_PicParams_H264 pic_params;
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DXVA_Qmatrix_H264 iq_matrix;
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std::vector<DXVA_Slice_H264_Short> slice_list;
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std::vector<guint8> bitstream_buffer;
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GPtrArray *ref_pics = nullptr;
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gint crop_x = 0;
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gint crop_y = 0;
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gint width = 0;
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gint height = 0;
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gint coded_width = 0;
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gint coded_height = 0;
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gint bitdepth = 0;
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guint8 chroma_format_idc = 0;
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GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN;
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gboolean interlaced = FALSE;
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gint max_dpb_size = 0;
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gboolean configured = FALSE;
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};
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/* *INDENT-ON* */
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static void gst_dxva_h264_decoder_finalize (GObject * object);
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static gboolean gst_dxva_h264_decoder_start (GstVideoDecoder * decoder);
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static GstFlowReturn
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gst_dxva_h264_decoder_new_sequence (GstH264Decoder * decoder,
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const GstH264SPS * sps, gint max_dpb_size);
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static GstFlowReturn
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gst_dxva_h264_decoder_new_picture (GstH264Decoder * decoder,
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GstVideoCodecFrame * frame, GstH264Picture * picture);
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static GstFlowReturn
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gst_dxva_h264_decoder_new_field_picture (GstH264Decoder * decoder,
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GstH264Picture * first_field, GstH264Picture * second_field);
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static GstFlowReturn
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gst_dxva_h264_decoder_start_picture (GstH264Decoder * decoder,
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GstH264Picture * picture, GstH264Slice * slice, GstH264Dpb * dpb);
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static GstFlowReturn
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gst_dxva_h264_decoder_decode_slice (GstH264Decoder * decoder,
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GstH264Picture * picture, GstH264Slice * slice, GArray * ref_pic_list0,
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GArray * ref_pic_list1);
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static GstFlowReturn
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gst_dxva_h264_decoder_end_picture (GstH264Decoder * decoder,
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GstH264Picture * picture);
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static GstFlowReturn
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gst_dxva_h264_decoder_output_picture (GstH264Decoder * decoder,
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GstVideoCodecFrame * frame, GstH264Picture * picture);
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#define gst_dxva_h264_decoder_parent_class parent_class
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstDxvaH264Decoder,
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gst_dxva_h264_decoder, GST_TYPE_H264_DECODER,
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GST_DEBUG_CATEGORY_INIT (gst_dxva_h264_decoder_debug, "dxvah264decoder",
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0, "dxvah264decoder"));
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static void
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gst_dxva_h264_decoder_class_init (GstDxvaH264DecoderClass * 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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GstH264DecoderClass *h264decoder_class = GST_H264_DECODER_CLASS (klass);
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object_class->finalize = gst_dxva_h264_decoder_finalize;
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decoder_class->start = GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_start);
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h264decoder_class->new_sequence =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_new_sequence);
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h264decoder_class->new_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_new_picture);
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h264decoder_class->new_field_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_new_field_picture);
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h264decoder_class->start_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_start_picture);
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h264decoder_class->decode_slice =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_decode_slice);
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h264decoder_class->end_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_end_picture);
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h264decoder_class->output_picture =
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GST_DEBUG_FUNCPTR (gst_dxva_h264_decoder_output_picture);
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}
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static void
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gst_dxva_h264_decoder_init (GstDxvaH264Decoder * self)
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{
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self->priv = new GstDxvaH264DecoderPrivate ();
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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_h264_decoder_finalize (GObject * object)
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{
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GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (object);
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GstDxvaH264DecoderPrivate *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_h264_decoder_reset (GstDxvaH264Decoder * self)
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{
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GstDxvaH264DecoderPrivate *priv = self->priv;
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priv->crop_x = 0;
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priv->crop_y = 0;
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priv->width = 0;
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priv->height = 0;
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priv->coded_width = 0;
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priv->coded_height = 0;
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priv->bitdepth = 0;
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priv->chroma_format_idc = 0;
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priv->out_format = GST_VIDEO_FORMAT_UNKNOWN;
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priv->interlaced = FALSE;
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priv->max_dpb_size = 0;
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priv->configured = FALSE;
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}
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static gboolean
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gst_dxva_h264_decoder_start (GstVideoDecoder * decoder)
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{
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GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
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gst_dxva_h264_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_h264_decoder_new_sequence (GstH264Decoder * decoder,
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const GstH264SPS * sps, gint max_dpb_size)
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{
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GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
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GstDxvaH264DecoderPrivate *priv = self->priv;
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GstDxvaH264DecoderClass *klass = GST_DXVA_H264_DECODER_GET_CLASS (self);
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gint crop_width, crop_height;
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gboolean interlaced;
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gboolean modified = FALSE;
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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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if (sps->frame_cropping_flag) {
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crop_width = sps->crop_rect_width;
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crop_height = sps->crop_rect_height;
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} else {
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crop_width = sps->width;
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crop_height = sps->height;
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}
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if (priv->width != crop_width || priv->height != crop_height ||
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priv->coded_width != sps->width || priv->coded_height != sps->height ||
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priv->crop_x != sps->crop_rect_x || priv->crop_y != sps->crop_rect_y) {
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GST_INFO_OBJECT (self,
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"resolution change, %dx%d (%dx%d) -> %dx%d (%dx%d)",
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priv->width, priv->height, priv->coded_width, priv->coded_height,
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crop_width, crop_height, sps->width, sps->height);
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priv->crop_x = sps->crop_rect_x;
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priv->crop_y = sps->crop_rect_y;
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priv->width = crop_width;
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priv->height = crop_height;
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priv->coded_width = sps->width;
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priv->coded_height = sps->height;
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modified = TRUE;
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}
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if (priv->bitdepth != sps->bit_depth_luma_minus8 + 8) {
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gint bitdepth = sps->bit_depth_luma_minus8 + 8;
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GST_INFO_OBJECT (self,
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"bitdepth change, %d -> %d", priv->bitdepth, bitdepth);
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priv->bitdepth = bitdepth;
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modified = TRUE;
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}
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if (priv->chroma_format_idc != sps->chroma_format_idc) {
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GST_INFO_OBJECT (self, "chroma format change, %d -> %d",
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priv->chroma_format_idc, sps->chroma_format_idc);
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priv->chroma_format_idc = sps->chroma_format_idc;
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modified = TRUE;
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}
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interlaced = !sps->frame_mbs_only_flag;
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if (priv->interlaced != interlaced) {
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GST_INFO_OBJECT (self, "interlaced sequence change, %d -> %d",
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priv->interlaced, interlaced);
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priv->interlaced = interlaced;
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modified = TRUE;
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}
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if (priv->max_dpb_size < max_dpb_size) {
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GST_INFO_OBJECT (self, "Requires larger DPB size (%d -> %d)",
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priv->max_dpb_size, max_dpb_size);
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modified = TRUE;
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}
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if (!modified && priv->configured)
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return GST_FLOW_OK;
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priv->out_format = GST_VIDEO_FORMAT_UNKNOWN;
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if (priv->bitdepth == 8) {
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if (priv->chroma_format_idc == 1) {
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priv->out_format = GST_VIDEO_FORMAT_NV12;
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} else {
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GST_FIXME_OBJECT (self, "Could not support 8bits non-4:2:0 format");
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}
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}
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if (priv->out_format == GST_VIDEO_FORMAT_UNKNOWN) {
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GST_ERROR_OBJECT (self, "Could not support bitdepth/chroma format");
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priv->configured = FALSE;
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return GST_FLOW_NOT_NEGOTIATED;
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}
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gst_video_info_set_interlaced_format (&info, priv->out_format,
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priv->interlaced ? GST_VIDEO_INTERLACE_MODE_MIXED :
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GST_VIDEO_INTERLACE_MODE_PROGRESSIVE, priv->width, priv->height);
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priv->max_dpb_size = max_dpb_size;
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g_assert (klass->configure);
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ret = klass->configure (self, decoder->input_state, &info, priv->crop_x,
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priv->crop_y, priv->coded_width, priv->coded_height, max_dpb_size);
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if (ret == GST_FLOW_OK) {
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priv->configured = TRUE;
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if (!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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} else {
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priv->configured = FALSE;
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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_h264_decoder_new_picture (GstH264Decoder * decoder,
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GstVideoCodecFrame * frame, GstH264Picture * picture)
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{
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GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
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GstDxvaH264DecoderClass *klass = GST_DXVA_H264_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 GstFlowReturn
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gst_dxva_h264_decoder_new_field_picture (GstH264Decoder * decoder,
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GstH264Picture * first_field, GstH264Picture * second_field)
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{
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GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
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GstDxvaH264DecoderClass *klass = GST_DXVA_H264_DECODER_GET_CLASS (self);
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g_assert (klass->duplicate_picture);
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return klass->duplicate_picture (self, GST_CODEC_PICTURE (first_field),
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GST_CODEC_PICTURE (second_field));
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}
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static void
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gst_dxva_h264_decoder_picture_params_from_sps (GstDxvaH264Decoder * self,
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const GstH264SPS * sps, gboolean field_pic, DXVA_PicParams_H264 * params)
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{
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#define COPY_FIELD(f) \
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(params)->f = (sps)->f
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params->wFrameWidthInMbsMinus1 = sps->pic_width_in_mbs_minus1;
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if (!sps->frame_mbs_only_flag) {
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params->wFrameHeightInMbsMinus1 =
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((sps->pic_height_in_map_units_minus1 + 1) << 1) - 1;
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} else {
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params->wFrameHeightInMbsMinus1 = sps->pic_height_in_map_units_minus1;
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}
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params->residual_colour_transform_flag = sps->separate_colour_plane_flag;
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params->MbaffFrameFlag = (sps->mb_adaptive_frame_field_flag && !field_pic);
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params->field_pic_flag = field_pic;
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params->MinLumaBipredSize8x8Flag = sps->level_idc >= 31;
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COPY_FIELD (num_ref_frames);
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COPY_FIELD (chroma_format_idc);
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COPY_FIELD (frame_mbs_only_flag);
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COPY_FIELD (bit_depth_luma_minus8);
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COPY_FIELD (bit_depth_chroma_minus8);
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COPY_FIELD (log2_max_frame_num_minus4);
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COPY_FIELD (pic_order_cnt_type);
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COPY_FIELD (log2_max_pic_order_cnt_lsb_minus4);
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COPY_FIELD (delta_pic_order_always_zero_flag);
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COPY_FIELD (direct_8x8_inference_flag);
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#undef COPY_FIELD
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}
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static void
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gst_dxva_h264_decoder_picture_params_from_pps (GstDxvaH264Decoder * self,
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const GstH264PPS * pps, DXVA_PicParams_H264 * params)
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{
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#define COPY_FIELD(f) \
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(params)->f = (pps)->f
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COPY_FIELD (constrained_intra_pred_flag);
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COPY_FIELD (weighted_pred_flag);
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COPY_FIELD (weighted_bipred_idc);
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COPY_FIELD (transform_8x8_mode_flag);
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COPY_FIELD (pic_init_qs_minus26);
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COPY_FIELD (chroma_qp_index_offset);
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COPY_FIELD (second_chroma_qp_index_offset);
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COPY_FIELD (pic_init_qp_minus26);
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COPY_FIELD (num_ref_idx_l0_active_minus1);
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COPY_FIELD (num_ref_idx_l1_active_minus1);
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COPY_FIELD (entropy_coding_mode_flag);
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COPY_FIELD (pic_order_present_flag);
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COPY_FIELD (deblocking_filter_control_present_flag);
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COPY_FIELD (redundant_pic_cnt_present_flag);
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COPY_FIELD (num_slice_groups_minus1);
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COPY_FIELD (slice_group_map_type);
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#undef COPY_FIELD
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}
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static void
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gst_dxva_h264_decoder_picture_params_from_slice_header (GstDxvaH264Decoder *
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self, const GstH264SliceHdr * slice_header, DXVA_PicParams_H264 * params)
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{
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params->sp_for_switch_flag = slice_header->sp_for_switch_flag;
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params->field_pic_flag = slice_header->field_pic_flag;
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params->CurrPic.AssociatedFlag = slice_header->bottom_field_flag;
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params->IntraPicFlag =
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GST_H264_IS_I_SLICE (slice_header) || GST_H264_IS_SI_SLICE (slice_header);
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}
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static gboolean
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gst_dxva_h264_decoder_fill_picture_params (GstDxvaH264Decoder * self,
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const GstH264SliceHdr * slice_header, DXVA_PicParams_H264 * params)
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{
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const GstH264SPS *sps;
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const GstH264PPS *pps;
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g_return_val_if_fail (slice_header->pps != nullptr, FALSE);
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g_return_val_if_fail (slice_header->pps->sequence != nullptr, FALSE);
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pps = slice_header->pps;
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sps = pps->sequence;
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params->MbsConsecutiveFlag = 1;
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params->Reserved16Bits = 3;
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params->ContinuationFlag = 1;
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params->Reserved8BitsA = 0;
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params->Reserved8BitsB = 0;
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params->StatusReportFeedbackNumber = 1;
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gst_dxva_h264_decoder_picture_params_from_sps (self,
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sps, slice_header->field_pic_flag, params);
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gst_dxva_h264_decoder_picture_params_from_pps (self, pps, params);
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gst_dxva_h264_decoder_picture_params_from_slice_header (self,
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slice_header, params);
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return TRUE;
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}
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static inline void
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init_pic_params (DXVA_PicParams_H264 * params)
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{
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memset (params, 0, sizeof (DXVA_PicParams_H264));
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for (guint i = 0; i < G_N_ELEMENTS (params->RefFrameList); i++)
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params->RefFrameList[i].bPicEntry = 0xff;
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}
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static GstFlowReturn
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gst_dxva_h264_decoder_start_picture (GstH264Decoder * decoder,
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GstH264Picture * picture, GstH264Slice * slice, GstH264Dpb * dpb)
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{
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GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
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GstDxvaH264DecoderClass *klass = GST_DXVA_H264_DECODER_GET_CLASS (self);
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GstDxvaH264DecoderPrivate *priv = self->priv;
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DXVA_PicParams_H264 *pic_params = &priv->pic_params;
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DXVA_Qmatrix_H264 *iq_matrix = &priv->iq_matrix;
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GstCodecPicture *codec_picture = GST_CODEC_PICTURE (picture);
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GArray *dpb_array;
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GstH264PPS *pps;
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guint i, j;
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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;
|
|
|
|
pps = slice->header.pps;
|
|
|
|
priv->slice_list.resize (0);
|
|
priv->bitstream_buffer.resize (0);
|
|
g_ptr_array_set_size (priv->ref_pics, 0);
|
|
|
|
init_pic_params (pic_params);
|
|
gst_dxva_h264_decoder_fill_picture_params (self, &slice->header, pic_params);
|
|
|
|
pic_params->CurrPic.Index7Bits = picture_id;
|
|
pic_params->RefPicFlag = GST_H264_PICTURE_IS_REF (picture);
|
|
pic_params->frame_num = picture->frame_num;
|
|
|
|
if (picture->field == GST_H264_PICTURE_FIELD_TOP_FIELD) {
|
|
pic_params->CurrFieldOrderCnt[0] = picture->top_field_order_cnt;
|
|
pic_params->CurrFieldOrderCnt[1] = 0;
|
|
} else if (picture->field == GST_H264_PICTURE_FIELD_BOTTOM_FIELD) {
|
|
pic_params->CurrFieldOrderCnt[0] = 0;
|
|
pic_params->CurrFieldOrderCnt[1] = picture->bottom_field_order_cnt;
|
|
} else {
|
|
pic_params->CurrFieldOrderCnt[0] = picture->top_field_order_cnt;
|
|
pic_params->CurrFieldOrderCnt[1] = picture->bottom_field_order_cnt;
|
|
}
|
|
|
|
dpb_array = gst_h264_dpb_get_pictures_all (dpb);
|
|
for (i = 0, j = 0; i < dpb_array->len && j < 16; i++) {
|
|
GstH264Picture *other = g_array_index (dpb_array, GstH264Picture *, i);
|
|
|
|
if (!GST_H264_PICTURE_IS_REF (other))
|
|
continue;
|
|
|
|
/* Ignore nonexisting picture */
|
|
if (other->nonexisting)
|
|
continue;
|
|
|
|
/* The second field picture will be handled differently */
|
|
if (other->second_field)
|
|
continue;
|
|
|
|
pic_params->RefFrameList[j].Index7Bits =
|
|
klass->get_picture_id (self, GST_CODEC_PICTURE (other));
|
|
|
|
if (GST_H264_PICTURE_IS_LONG_TERM_REF (other)) {
|
|
pic_params->RefFrameList[j].AssociatedFlag = 1;
|
|
pic_params->FrameNumList[j] = other->long_term_frame_idx;
|
|
} else {
|
|
pic_params->RefFrameList[j].AssociatedFlag = 0;
|
|
pic_params->FrameNumList[j] = other->frame_num;
|
|
}
|
|
|
|
switch (other->field) {
|
|
case GST_H264_PICTURE_FIELD_TOP_FIELD:
|
|
pic_params->FieldOrderCntList[j][0] = other->top_field_order_cnt;
|
|
pic_params->UsedForReferenceFlags |= 0x1 << (2 * j);
|
|
break;
|
|
case GST_H264_PICTURE_FIELD_BOTTOM_FIELD:
|
|
pic_params->FieldOrderCntList[j][1] = other->bottom_field_order_cnt;
|
|
pic_params->UsedForReferenceFlags |= 0x1 << (2 * j + 1);
|
|
break;
|
|
default:
|
|
pic_params->FieldOrderCntList[j][0] = other->top_field_order_cnt;
|
|
pic_params->FieldOrderCntList[j][1] = other->bottom_field_order_cnt;
|
|
pic_params->UsedForReferenceFlags |= 0x3 << (2 * j);
|
|
break;
|
|
}
|
|
|
|
if (other->other_field) {
|
|
GstH264Picture *other_field = other->other_field;
|
|
|
|
switch (other_field->field) {
|
|
case GST_H264_PICTURE_FIELD_TOP_FIELD:
|
|
pic_params->FieldOrderCntList[j][0] =
|
|
other_field->top_field_order_cnt;
|
|
pic_params->UsedForReferenceFlags |= 0x1 << (2 * j);
|
|
break;
|
|
case GST_H264_PICTURE_FIELD_BOTTOM_FIELD:
|
|
pic_params->FieldOrderCntList[j][1] =
|
|
other_field->bottom_field_order_cnt;
|
|
pic_params->UsedForReferenceFlags |= 0x1 << (2 * j + 1);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_ptr_array_add (priv->ref_pics, other);
|
|
j++;
|
|
}
|
|
g_array_unref (dpb_array);
|
|
|
|
G_STATIC_ASSERT (sizeof (iq_matrix->bScalingLists4x4) ==
|
|
sizeof (pps->scaling_lists_4x4));
|
|
memcpy (iq_matrix->bScalingLists4x4, pps->scaling_lists_4x4,
|
|
sizeof (pps->scaling_lists_4x4));
|
|
|
|
G_STATIC_ASSERT (sizeof (iq_matrix->bScalingLists8x8[0]) ==
|
|
sizeof (pps->scaling_lists_8x8[0]));
|
|
memcpy (iq_matrix->bScalingLists8x8[0], pps->scaling_lists_8x8[0],
|
|
sizeof (pps->scaling_lists_8x8[0]));
|
|
memcpy (iq_matrix->bScalingLists8x8[1], pps->scaling_lists_8x8[1],
|
|
sizeof (pps->scaling_lists_8x8[1]));
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_dxva_h264_decoder_decode_slice (GstH264Decoder * decoder,
|
|
GstH264Picture * picture, GstH264Slice * slice, GArray * ref_pic_list0,
|
|
GArray * ref_pic_list1)
|
|
{
|
|
GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
|
|
GstDxvaH264DecoderPrivate *priv = self->priv;
|
|
DXVA_Slice_H264_Short dxva_slice;
|
|
static const guint8 start_code[] = { 0, 0, 1 };
|
|
const size_t start_code_size = sizeof (start_code);
|
|
|
|
dxva_slice.BSNALunitDataLocation = priv->bitstream_buffer.size ();
|
|
/* Includes 3 bytes start code prefix */
|
|
dxva_slice.SliceBytesInBuffer = slice->nalu.size + start_code_size;
|
|
dxva_slice.wBadSliceChopping = 0;
|
|
|
|
priv->slice_list.push_back (dxva_slice);
|
|
|
|
size_t pos = priv->bitstream_buffer.size ();
|
|
priv->bitstream_buffer.resize (pos + start_code_size + slice->nalu.size);
|
|
|
|
/* Fill start code prefix */
|
|
memcpy (&priv->bitstream_buffer[0] + pos, start_code, start_code_size);
|
|
|
|
/* Copy bitstream */
|
|
memcpy (&priv->bitstream_buffer[0] + pos + start_code_size,
|
|
slice->nalu.data + slice->nalu.offset, slice->nalu.size);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_dxva_h264_decoder_end_picture (GstH264Decoder * decoder,
|
|
GstH264Picture * picture)
|
|
{
|
|
GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
|
|
GstDxvaH264DecoderPrivate *priv = self->priv;
|
|
GstDxvaH264DecoderClass *klass = GST_DXVA_H264_DECODER_GET_CLASS (self);
|
|
size_t bitstream_buffer_size;
|
|
size_t bitstream_pos;
|
|
GstDxvaDecodingArgs args;
|
|
|
|
GST_LOG_OBJECT (self, "end picture %p, (poc %d)",
|
|
picture, picture->pic_order_cnt);
|
|
|
|
if (priv->bitstream_buffer.empty () || priv->slice_list.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);
|
|
|
|
DXVA_Slice_H264_Short & slice = priv->slice_list.back ();
|
|
slice.SliceBytesInBuffer += padding;
|
|
}
|
|
|
|
args.picture_params = &priv->pic_params;
|
|
args.picture_params_size = sizeof (DXVA_PicParams_H264);
|
|
args.slice_control = &priv->slice_list[0];
|
|
args.slice_control_size =
|
|
sizeof (DXVA_Slice_H264_Short) * priv->slice_list.size ();
|
|
args.bitstream = &priv->bitstream_buffer[0];
|
|
args.bitstream_size = priv->bitstream_buffer.size ();
|
|
args.inverse_quantization_matrix = &priv->iq_matrix;
|
|
args.inverse_quantization_matrix_size = sizeof (DXVA_Qmatrix_H264);
|
|
|
|
g_assert (klass->end_picture);
|
|
|
|
return klass->end_picture (self, GST_CODEC_PICTURE (picture),
|
|
priv->ref_pics, &args);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_dxva_h264_decoder_output_picture (GstH264Decoder * decoder,
|
|
GstVideoCodecFrame * frame, GstH264Picture * picture)
|
|
{
|
|
GstDxvaH264Decoder *self = GST_DXVA_H264_DECODER (decoder);
|
|
GstDxvaH264DecoderClass *klass = GST_DXVA_H264_DECODER_GET_CLASS (self);
|
|
GstDxvaH264DecoderPrivate *priv = self->priv;
|
|
|
|
g_assert (klass->output_picture);
|
|
|
|
GST_LOG_OBJECT (self,
|
|
"Outputting picture %p (poc %d)", picture, picture->pic_order_cnt);
|
|
|
|
return klass->output_picture (self, frame, GST_CODEC_PICTURE (picture),
|
|
picture->buffer_flags, priv->width, priv->height);
|
|
}
|