gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/dxva/gstdxvah265decoder.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 "gstdxvah265decoder.h"
#include <string.h>
#include <vector>
#include "gstdxvatypedef.h"
GST_DEBUG_CATEGORY_STATIC (gst_dxva_h265_decoder_debug);
#define GST_CAT_DEFAULT gst_dxva_h265_decoder_debug
/* *INDENT-OFF* */
struct _GstDxvaH265DecoderPrivate
{
DXVA_PicParams_HEVC pic_params;
DXVA_Qmatrix_HEVC iq_matrix;
std::vector<DXVA_Slice_HEVC_Short> slice_list;
std::vector<guint8> bitstream_buffer;
GPtrArray *ref_pics = nullptr;
gboolean submit_iq_data;
gint crop_x = 0;
gint crop_y = 0;
gint width = 0;
gint height = 0;
gint coded_width = 0;
gint coded_height = 0;
gint bitdepth = 0;
guint8 chroma_format_idc = 0;
GstVideoFormat out_format = GST_VIDEO_FORMAT_UNKNOWN;
GstVideoInterlaceMode interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
gint max_dpb_size = 0;
gboolean configured;
};
/* *INDENT-ON* */
static void gst_dxva_h265_decoder_finalize (GObject * object);
static gboolean gst_dxva_h265_decoder_start (GstVideoDecoder * decoder);
static GstFlowReturn
gst_dxva_h265_decoder_new_sequence (GstH265Decoder * decoder,
const GstH265SPS * sps, gint max_dpb_size);
static GstFlowReturn
gst_dxva_h265_decoder_new_picture (GstH265Decoder * decoder,
GstVideoCodecFrame * frame, GstH265Picture * picture);
static GstFlowReturn
gst_dxva_h265_decoder_start_picture (GstH265Decoder * decoder,
GstH265Picture * picture, GstH265Slice * slice, GstH265Dpb * dpb);
static GstFlowReturn
gst_dxva_h265_decoder_decode_slice (GstH265Decoder * decoder,
GstH265Picture * picture, GstH265Slice * slice,
GArray * ref_pic_list0, GArray * ref_pic_list1);
static GstFlowReturn
gst_dxva_h265_decoder_end_picture (GstH265Decoder * decoder,
GstH265Picture * picture);
static GstFlowReturn
gst_dxva_h265_decoder_output_picture (GstH265Decoder *
decoder, GstVideoCodecFrame * frame, GstH265Picture * picture);
#define gst_dxva_h265_decoder_parent_class parent_class
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstDxvaH265Decoder,
gst_dxva_h265_decoder, GST_TYPE_H265_DECODER,
GST_DEBUG_CATEGORY_INIT (gst_dxva_h265_decoder_debug, "dxvah265decoder",
0, "dxvah265decoder"));
static void
gst_dxva_h265_decoder_class_init (GstDxvaH265DecoderClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstVideoDecoderClass *decoder_class = GST_VIDEO_DECODER_CLASS (klass);
GstH265DecoderClass *h265decoder_class = GST_H265_DECODER_CLASS (klass);
gobject_class->finalize = gst_dxva_h265_decoder_finalize;
decoder_class->start = GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_start);
h265decoder_class->new_sequence =
GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_new_sequence);
h265decoder_class->new_picture =
GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_new_picture);
h265decoder_class->start_picture =
GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_start_picture);
h265decoder_class->decode_slice =
GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_decode_slice);
h265decoder_class->end_picture =
GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_end_picture);
h265decoder_class->output_picture =
GST_DEBUG_FUNCPTR (gst_dxva_h265_decoder_output_picture);
}
static void
gst_dxva_h265_decoder_init (GstDxvaH265Decoder * self)
{
self->priv = new GstDxvaH265DecoderPrivate ();
self->priv->ref_pics = g_ptr_array_new ();
}
static void
gst_dxva_h265_decoder_finalize (GObject * object)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (object);
GstDxvaH265DecoderPrivate *priv = self->priv;
g_ptr_array_unref (priv->ref_pics);
delete self->priv;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_dxva_h265_decoder_reset (GstDxvaH265Decoder * self)
{
GstDxvaH265DecoderPrivate *priv = self->priv;
priv->crop_x = 0;
priv->crop_y = 0;
priv->width = 0;
priv->height = 0;
priv->coded_width = 0;
priv->coded_height = 0;
priv->bitdepth = 0;
priv->chroma_format_idc = 0;
priv->out_format = GST_VIDEO_FORMAT_UNKNOWN;
priv->interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
priv->max_dpb_size = 0;
priv->configured = FALSE;
}
static gboolean
gst_dxva_h265_decoder_start (GstVideoDecoder * decoder)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
gst_dxva_h265_decoder_reset (self);
return GST_VIDEO_DECODER_CLASS (parent_class)->start (decoder);
}
static GstFlowReturn
gst_dxva_h265_decoder_new_sequence (GstH265Decoder * decoder,
const GstH265SPS * sps, gint max_dpb_size)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
GstDxvaH265DecoderPrivate *priv = self->priv;
GstDxvaH265DecoderClass *klass = GST_DXVA_H265_DECODER_GET_CLASS (self);
gint crop_width, crop_height;
gboolean modified = FALSE;
GstVideoInterlaceMode interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
GstVideoInfo info;
GstFlowReturn ret;
GST_LOG_OBJECT (self, "new sequence");
if (sps->conformance_window_flag) {
crop_width = sps->crop_rect_width;
crop_height = sps->crop_rect_height;
} else {
crop_width = sps->width;
crop_height = sps->height;
}
if (priv->width != crop_width || priv->height != crop_height ||
priv->coded_width != sps->width || priv->coded_height != sps->height ||
priv->crop_x != sps->crop_rect_x || priv->crop_y != sps->crop_rect_y) {
GST_INFO_OBJECT (self, "resolution changed %dx%d (%dx%d) -> %dx%d (%dx%d)",
priv->width, priv->height, priv->coded_width, priv->coded_height,
crop_width, crop_height, sps->width, sps->height);
priv->crop_x = sps->crop_rect_x;
priv->crop_y = sps->crop_rect_y;
priv->width = crop_width;
priv->height = crop_height;
priv->coded_width = sps->width;
priv->coded_height = sps->height;
modified = TRUE;
}
if (priv->bitdepth != sps->bit_depth_luma_minus8 + 8) {
gint bitdepth = sps->bit_depth_luma_minus8 + 8;
GST_INFO_OBJECT (self,
"bitdepth change, %d -> %d", priv->bitdepth, bitdepth);
priv->bitdepth = bitdepth;
modified = TRUE;
}
if (sps->vui_parameters_present_flag && sps->vui_params.field_seq_flag) {
interlace_mode = GST_VIDEO_INTERLACE_MODE_ALTERNATE;
} else {
/* 7.4.4 Profile, tier and level sementics */
if (sps->profile_tier_level.progressive_source_flag &&
!sps->profile_tier_level.interlaced_source_flag) {
interlace_mode = GST_VIDEO_INTERLACE_MODE_PROGRESSIVE;
} else {
interlace_mode = GST_VIDEO_INTERLACE_MODE_MIXED;
}
}
if (priv->interlace_mode != interlace_mode) {
GST_INFO_OBJECT (self, "Interlace mode change %d -> %d",
priv->interlace_mode, interlace_mode);
priv->interlace_mode = interlace_mode;
modified = TRUE;
}
if (priv->chroma_format_idc != sps->chroma_format_idc) {
GST_INFO_OBJECT (self, "chroma format changed");
priv->chroma_format_idc = sps->chroma_format_idc;
modified = TRUE;
}
if (priv->max_dpb_size < max_dpb_size) {
GST_INFO_OBJECT (self, "Requires larger DPB size (%d -> %d)",
priv->max_dpb_size, max_dpb_size);
modified = TRUE;
}
if (!modified && priv->configured)
return GST_FLOW_OK;
priv->out_format = GST_VIDEO_FORMAT_UNKNOWN;
if (priv->bitdepth == 8) {
if (priv->chroma_format_idc == 1) {
priv->out_format = GST_VIDEO_FORMAT_NV12;
} else {
GST_FIXME_OBJECT (self, "Could not support 8bits non-4:2:0 format");
}
} else if (priv->bitdepth == 10) {
if (priv->chroma_format_idc == 1) {
priv->out_format = GST_VIDEO_FORMAT_P010_10LE;
} else {
GST_FIXME_OBJECT (self, "Could not support 10bits non-4:2:0 format");
}
}
if (priv->out_format == GST_VIDEO_FORMAT_UNKNOWN) {
GST_ERROR_OBJECT (self, "Could not support bitdepth/chroma format");
priv->configured = FALSE;
return GST_FLOW_NOT_NEGOTIATED;
}
gst_video_info_set_interlaced_format (&info, priv->out_format,
priv->interlace_mode, priv->width, priv->height);
priv->max_dpb_size = max_dpb_size;
g_assert (klass->configure);
ret = klass->configure (self, decoder->input_state, &info, priv->crop_x,
priv->crop_y, priv->coded_width, priv->coded_height, max_dpb_size);
if (ret == GST_FLOW_OK) {
priv->configured = TRUE;
if (!gst_video_decoder_negotiate (GST_VIDEO_DECODER (self))) {
GST_WARNING_OBJECT (self, "Couldn't negotiate with new sequence");
ret = GST_FLOW_NOT_NEGOTIATED;
}
} else {
priv->configured = FALSE;
}
return ret;
}
static GstFlowReturn
gst_dxva_h265_decoder_new_picture (GstH265Decoder * decoder,
GstVideoCodecFrame * frame, GstH265Picture * picture)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
GstDxvaH265DecoderClass *klass = GST_DXVA_H265_DECODER_GET_CLASS (self);
g_assert (klass->new_picture);
return klass->new_picture (self, GST_CODEC_PICTURE (picture));
}
static void
gst_dxva_h265_decoder_picture_params_from_sps (GstDxvaH265Decoder * self,
const GstH265SPS * sps, DXVA_PicParams_HEVC * params)
{
#define COPY_FIELD(f) \
(params)->f = (sps)->f
#define COPY_FIELD_WITH_PREFIX(f) \
(params)->G_PASTE(sps_,f) = (sps)->f
params->PicWidthInMinCbsY =
sps->width >> (sps->log2_min_luma_coding_block_size_minus3 + 3);
params->PicHeightInMinCbsY =
sps->height >> (sps->log2_min_luma_coding_block_size_minus3 + 3);
params->sps_max_dec_pic_buffering_minus1 =
sps->max_dec_pic_buffering_minus1[sps->max_sub_layers_minus1];
COPY_FIELD (chroma_format_idc);
COPY_FIELD (separate_colour_plane_flag);
COPY_FIELD (bit_depth_luma_minus8);
COPY_FIELD (bit_depth_chroma_minus8);
COPY_FIELD (log2_max_pic_order_cnt_lsb_minus4);
COPY_FIELD (log2_min_luma_coding_block_size_minus3);
COPY_FIELD (log2_diff_max_min_luma_coding_block_size);
COPY_FIELD (log2_min_transform_block_size_minus2);
COPY_FIELD (log2_diff_max_min_transform_block_size);
COPY_FIELD (max_transform_hierarchy_depth_inter);
COPY_FIELD (max_transform_hierarchy_depth_intra);
COPY_FIELD (num_short_term_ref_pic_sets);
COPY_FIELD (num_long_term_ref_pics_sps);
COPY_FIELD (scaling_list_enabled_flag);
COPY_FIELD (amp_enabled_flag);
COPY_FIELD (sample_adaptive_offset_enabled_flag);
COPY_FIELD (pcm_enabled_flag);
if (sps->pcm_enabled_flag) {
COPY_FIELD (pcm_sample_bit_depth_luma_minus1);
COPY_FIELD (pcm_sample_bit_depth_chroma_minus1);
COPY_FIELD (log2_min_pcm_luma_coding_block_size_minus3);
COPY_FIELD (log2_diff_max_min_pcm_luma_coding_block_size);
}
COPY_FIELD (pcm_loop_filter_disabled_flag);
COPY_FIELD (long_term_ref_pics_present_flag);
COPY_FIELD_WITH_PREFIX (temporal_mvp_enabled_flag);
COPY_FIELD (strong_intra_smoothing_enabled_flag);
#undef COPY_FIELD
#undef COPY_FIELD_WITH_PREFIX
}
static void
gst_dxva_h265_decoder_picture_params_from_pps (GstDxvaH265Decoder * self,
const GstH265PPS * pps, DXVA_PicParams_HEVC * params)
{
guint i;
#define COPY_FIELD(f) \
(params)->f = (pps)->f
#define COPY_FIELD_WITH_PREFIX(f) \
(params)->G_PASTE(pps_,f) = (pps)->f
COPY_FIELD (num_ref_idx_l0_default_active_minus1);
COPY_FIELD (num_ref_idx_l1_default_active_minus1);
COPY_FIELD (init_qp_minus26);
COPY_FIELD (dependent_slice_segments_enabled_flag);
COPY_FIELD (output_flag_present_flag);
COPY_FIELD (num_extra_slice_header_bits);
COPY_FIELD (sign_data_hiding_enabled_flag);
COPY_FIELD (cabac_init_present_flag);
COPY_FIELD (constrained_intra_pred_flag);
COPY_FIELD (transform_skip_enabled_flag);
COPY_FIELD (cu_qp_delta_enabled_flag);
COPY_FIELD_WITH_PREFIX (slice_chroma_qp_offsets_present_flag);
COPY_FIELD (weighted_pred_flag);
COPY_FIELD (weighted_bipred_flag);
COPY_FIELD (transquant_bypass_enabled_flag);
COPY_FIELD (tiles_enabled_flag);
COPY_FIELD (entropy_coding_sync_enabled_flag);
COPY_FIELD (uniform_spacing_flag);
if (pps->tiles_enabled_flag)
COPY_FIELD (loop_filter_across_tiles_enabled_flag);
COPY_FIELD_WITH_PREFIX (loop_filter_across_slices_enabled_flag);
COPY_FIELD (deblocking_filter_override_enabled_flag);
COPY_FIELD_WITH_PREFIX (deblocking_filter_disabled_flag);
COPY_FIELD (lists_modification_present_flag);
COPY_FIELD (slice_segment_header_extension_present_flag);
COPY_FIELD_WITH_PREFIX (cb_qp_offset);
COPY_FIELD_WITH_PREFIX (cr_qp_offset);
if (pps->tiles_enabled_flag) {
COPY_FIELD (num_tile_columns_minus1);
COPY_FIELD (num_tile_rows_minus1);
if (!pps->uniform_spacing_flag) {
for (i = 0; i < pps->num_tile_columns_minus1 &&
i < G_N_ELEMENTS (params->column_width_minus1); i++)
COPY_FIELD (column_width_minus1[i]);
for (i = 0; i < pps->num_tile_rows_minus1 &&
i < G_N_ELEMENTS (params->row_height_minus1); i++)
COPY_FIELD (row_height_minus1[i]);
}
}
COPY_FIELD (diff_cu_qp_delta_depth);
COPY_FIELD_WITH_PREFIX (beta_offset_div2);
COPY_FIELD_WITH_PREFIX (tc_offset_div2);
COPY_FIELD (log2_parallel_merge_level_minus2);
#undef COPY_FIELD
#undef COPY_FIELD_WITH_PREFIX
}
static void
gst_dxva_h265_decoder_picture_params_from_slice_header (GstDxvaH265Decoder *
self, const GstH265SliceHdr * slice_header, DXVA_PicParams_HEVC * params)
{
if (slice_header->short_term_ref_pic_set_sps_flag == 0) {
params->ucNumDeltaPocsOfRefRpsIdx =
slice_header->short_term_ref_pic_sets.NumDeltaPocsOfRefRpsIdx;
params->wNumBitsForShortTermRPSInSlice =
slice_header->short_term_ref_pic_set_size;
}
}
static gboolean
gst_dxva_h265_decoder_fill_picture_params (GstDxvaH265Decoder * self,
const GstH265SliceHdr * slice_header, DXVA_PicParams_HEVC * params)
{
const GstH265SPS *sps;
const GstH265PPS *pps;
pps = slice_header->pps;
sps = pps->sps;
/* not related to hevc syntax */
params->NoPicReorderingFlag = 0;
params->NoBiPredFlag = 0;
params->ReservedBits1 = 0;
params->StatusReportFeedbackNumber = 1;
gst_dxva_h265_decoder_picture_params_from_sps (self, sps, params);
gst_dxva_h265_decoder_picture_params_from_pps (self, pps, params);
gst_dxva_h265_decoder_picture_params_from_slice_header (self,
slice_header, params);
return TRUE;
}
static UCHAR
gst_dxva_h265_decoder_get_ref_index (const DXVA_PicParams_HEVC * pic_params,
guint8 picture_id)
{
if (picture_id == 0xff)
return 0xff;
for (UCHAR i = 0; i < G_N_ELEMENTS (pic_params->RefPicList); i++) {
if (pic_params->RefPicList[i].Index7Bits == picture_id)
return i;
}
return 0xff;
}
static inline void
init_pic_params (DXVA_PicParams_HEVC * params)
{
memset (params, 0, sizeof (DXVA_PicParams_HEVC));
for (guint i = 0; i < G_N_ELEMENTS (params->RefPicList); i++)
params->RefPicList[i].bPicEntry = 0xff;
for (guint i = 0; i < G_N_ELEMENTS (params->RefPicSetStCurrBefore); i++) {
params->RefPicSetStCurrBefore[i] = 0xff;
params->RefPicSetStCurrAfter[i] = 0xff;
params->RefPicSetLtCurr[i] = 0xff;
}
}
static GstFlowReturn
gst_dxva_h265_decoder_start_picture (GstH265Decoder * decoder,
GstH265Picture * picture, GstH265Slice * slice, GstH265Dpb * dpb)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
GstDxvaH265DecoderPrivate *priv = self->priv;
GstDxvaH265DecoderClass *klass = GST_DXVA_H265_DECODER_GET_CLASS (self);
DXVA_PicParams_HEVC *pic_params = &priv->pic_params;
DXVA_Qmatrix_HEVC *iq_matrix = &priv->iq_matrix;
GstCodecPicture *codec_picture = GST_CODEC_PICTURE (picture);
guint i, j;
GArray *dpb_array;
GstH265SPS *sps;
GstH265PPS *pps;
GstH265ScalingList *scaling_list = nullptr;
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;
pps = slice->header.pps;
g_assert (pps);
sps = pps->sps;
g_assert (sps);
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_h265_decoder_fill_picture_params (self, &slice->header, pic_params);
pic_params->CurrPic.Index7Bits = picture_id;
pic_params->IrapPicFlag = GST_H265_IS_NAL_TYPE_IRAP (slice->nalu.type);
pic_params->IdrPicFlag = GST_H265_IS_NAL_TYPE_IDR (slice->nalu.type);
pic_params->IntraPicFlag = GST_H265_IS_NAL_TYPE_IRAP (slice->nalu.type);
pic_params->CurrPicOrderCntVal = picture->pic_order_cnt;
dpb_array = gst_h265_dpb_get_pictures_all (dpb);
for (i = 0, j = 0;
i < dpb_array->len && j < G_N_ELEMENTS (pic_params->RefPicList); i++) {
GstH265Picture *other = g_array_index (dpb_array, GstH265Picture *, i);
guint8 id;
if (!other->ref)
continue;
id = klass->get_picture_id (self, GST_CODEC_PICTURE (other));
if (id != 0xff) {
pic_params->RefPicList[j].Index7Bits = id;
pic_params->RefPicList[j].AssociatedFlag = other->long_term;
pic_params->PicOrderCntValList[j] = other->pic_order_cnt;
g_ptr_array_add (priv->ref_pics, other);
}
j++;
}
g_array_unref (dpb_array);
for (i = 0, j = 0; i < G_N_ELEMENTS (pic_params->RefPicSetStCurrBefore); i++) {
GstH265Picture *other = nullptr;
guint8 id = 0xff;
while (!other && j < decoder->NumPocStCurrBefore)
other = decoder->RefPicSetStCurrBefore[j++];
if (other)
id = klass->get_picture_id (self, GST_CODEC_PICTURE (other));
pic_params->RefPicSetStCurrBefore[i] =
gst_dxva_h265_decoder_get_ref_index (pic_params, id);
}
for (i = 0, j = 0; i < G_N_ELEMENTS (pic_params->RefPicSetStCurrAfter); i++) {
GstH265Picture *other = nullptr;
guint8 id = 0xff;
while (!other && j < decoder->NumPocStCurrAfter)
other = decoder->RefPicSetStCurrAfter[j++];
if (other)
id = klass->get_picture_id (self, GST_CODEC_PICTURE (other));
pic_params->RefPicSetStCurrAfter[i] =
gst_dxva_h265_decoder_get_ref_index (pic_params, id);
}
for (i = 0, j = 0; i < G_N_ELEMENTS (pic_params->RefPicSetLtCurr); i++) {
GstH265Picture *other = nullptr;
guint8 id = 0xff;
while (!other && j < decoder->NumPocLtCurr)
other = decoder->RefPicSetLtCurr[j++];
if (other)
id = klass->get_picture_id (self, GST_CODEC_PICTURE (other));
pic_params->RefPicSetLtCurr[i] =
gst_dxva_h265_decoder_get_ref_index (pic_params, id);
}
if (pps->scaling_list_data_present_flag ||
(sps->scaling_list_enabled_flag
&& !sps->scaling_list_data_present_flag)) {
scaling_list = &pps->scaling_list;
} else if (sps->scaling_list_enabled_flag &&
sps->scaling_list_data_present_flag) {
scaling_list = &sps->scaling_list;
}
if (scaling_list) {
G_STATIC_ASSERT (sizeof (iq_matrix->ucScalingLists0) ==
sizeof (scaling_list->scaling_lists_4x4));
G_STATIC_ASSERT (sizeof (iq_matrix->ucScalingLists1) ==
sizeof (scaling_list->scaling_lists_8x8));
G_STATIC_ASSERT (sizeof (iq_matrix->ucScalingLists2) ==
sizeof (scaling_list->scaling_lists_16x16));
G_STATIC_ASSERT (sizeof (iq_matrix->ucScalingLists3) ==
sizeof (scaling_list->scaling_lists_32x32));
memcpy (iq_matrix->ucScalingLists0, scaling_list->scaling_lists_4x4,
sizeof (iq_matrix->ucScalingLists0));
memcpy (iq_matrix->ucScalingLists1, scaling_list->scaling_lists_8x8,
sizeof (iq_matrix->ucScalingLists1));
memcpy (iq_matrix->ucScalingLists2, scaling_list->scaling_lists_16x16,
sizeof (iq_matrix->ucScalingLists2));
memcpy (iq_matrix->ucScalingLists3, scaling_list->scaling_lists_32x32,
sizeof (iq_matrix->ucScalingLists3));
for (i = 0; i < G_N_ELEMENTS (iq_matrix->ucScalingListDCCoefSizeID2); i++) {
iq_matrix->ucScalingListDCCoefSizeID2[i] =
scaling_list->scaling_list_dc_coef_minus8_16x16[i] + 8;
}
for (i = 0; i < G_N_ELEMENTS (iq_matrix->ucScalingListDCCoefSizeID3); i++) {
iq_matrix->ucScalingListDCCoefSizeID3[i] =
scaling_list->scaling_list_dc_coef_minus8_32x32[i] + 8;
}
priv->submit_iq_data = TRUE;
} else {
priv->submit_iq_data = FALSE;
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_dxva_h265_decoder_decode_slice (GstH265Decoder * decoder,
GstH265Picture * picture, GstH265Slice * slice,
GArray * ref_pic_list0, GArray * ref_pic_list1)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
GstDxvaH265DecoderPrivate *priv = self->priv;
DXVA_Slice_HEVC_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_h265_decoder_end_picture (GstH265Decoder * decoder,
GstH265Picture * picture)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
GstDxvaH265DecoderPrivate *priv = self->priv;
GstDxvaH265DecoderClass *klass = GST_DXVA_H265_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_HEVC_Short & slice = priv->slice_list.back ();
slice.SliceBytesInBuffer += padding;
}
args.picture_params = &priv->pic_params;
args.picture_params_size = sizeof (DXVA_PicParams_HEVC);
args.slice_control = &priv->slice_list[0];
args.slice_control_size =
sizeof (DXVA_Slice_HEVC_Short) * priv->slice_list.size ();
args.bitstream = &priv->bitstream_buffer[0];
args.bitstream_size = priv->bitstream_buffer.size ();
if (priv->submit_iq_data) {
args.inverse_quantization_matrix = &priv->iq_matrix;
args.inverse_quantization_matrix_size = sizeof (DXVA_Qmatrix_HEVC);
}
g_assert (klass->end_picture);
return klass->end_picture (self, GST_CODEC_PICTURE (picture),
priv->ref_pics, &args);
}
static GstFlowReturn
gst_dxva_h265_decoder_output_picture (GstH265Decoder * decoder,
GstVideoCodecFrame * frame, GstH265Picture * picture)
{
GstDxvaH265Decoder *self = GST_DXVA_H265_DECODER (decoder);
GstDxvaH265DecoderPrivate *priv = self->priv;
GstDxvaH265DecoderClass *klass = GST_DXVA_H265_DECODER_GET_CLASS (self);
g_assert (klass->output_picture);
GST_LOG_OBJECT (self, "Outputting picture %p, poc %d, picture_struct %d, "
"buffer flags 0x%x", picture, picture->pic_order_cnt, picture->pic_struct,
picture->buffer_flags);
return klass->output_picture (self, frame, GST_CODEC_PICTURE (picture),
picture->buffer_flags, priv->width, priv->height);
}