1875 lines
76 KiB
C
1875 lines
76 KiB
C
/******************************************************************************
|
|
*
|
|
* Copyright (C) 2022 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*****************************************************************************
|
|
* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
|
|
*/
|
|
/**
|
|
*******************************************************************************
|
|
* @file
|
|
* isvcd_parse_headers.c
|
|
*
|
|
* @brief
|
|
* Contains High level syntax[above slice] parsing routines
|
|
*
|
|
* @author
|
|
* Kishore
|
|
*
|
|
* @par List of Functions:
|
|
* - isvcd_set_default_seq_svc_ext()
|
|
* - isvcd_parse_subset_sps()
|
|
* - isvcd_dec_ref_base_pic_marking()
|
|
* - isvcd_parse_nal_unit()
|
|
* - isvcd_parse_sps()
|
|
* - isvcd_parse_pps()
|
|
*
|
|
* @remarks
|
|
* None
|
|
*
|
|
*******************************************************************************
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "ih264_typedefs.h"
|
|
#include "ih264_defs.h"
|
|
#include "ih264_macros.h"
|
|
#include "ih264_platform_macros.h"
|
|
#include "ih264d_bitstrm.h"
|
|
#include "isvcd_structs.h"
|
|
#include "ih264d_parse_cavlc.h"
|
|
#include "ih264d_defs.h"
|
|
#include "ih264d_parse_slice.h"
|
|
#include "ih264d_tables.h"
|
|
#include "ih264d_utils.h"
|
|
#include "ih264d_nal.h"
|
|
#include "ih264d_deblocking.h"
|
|
#include "ih264d_mem_request.h"
|
|
#include "ih264d_debug.h"
|
|
#include "ih264_debug.h"
|
|
#include "ih264d_error_handler.h"
|
|
#include "ih264d_mb_utils.h"
|
|
#include "ih264d_sei.h"
|
|
#include "ih264d_vui.h"
|
|
#include "ih264d_thread_parse_decode.h"
|
|
#include "ih264d_thread_compute_bs.h"
|
|
#include "ih264d_quant_scaling.h"
|
|
#include "ih264d_defs.h"
|
|
#include "ivd.h"
|
|
#include "ih264d_parse_islice.h"
|
|
#include "isvcd_parse_slice.h"
|
|
#include "ih264d_process_bslice.h"
|
|
#include "ih264d_process_pslice.h"
|
|
#include "isvcd_vui.h"
|
|
|
|
WORD32 ih264d_access_unit_delimiter_rbsp(dec_struct_t *ps_dec);
|
|
void ih264d_get_pre_sei_params(dec_struct_t *ps_dec, UWORD8 u1_nal_unit_type);
|
|
UWORD32 ih264d_correct_level_idc(UWORD32 u4_level_idc, UWORD32 u4_total_mbs);
|
|
WORD32 ih264d_parse_filler_data(dec_struct_t *ps_dec, dec_bit_stream_t *ps_bitstrm);
|
|
void ih264d_parse_end_of_stream(dec_struct_t *ps_dec);
|
|
WORD32 ih264d_parse_slice_partition(dec_struct_t *ps_dec, dec_bit_stream_t *ps_bitstrm);
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : isvcd_set_default_seq_svc_ext \en
|
|
dif
|
|
*
|
|
* \brief
|
|
* Sets the default values for the svc params in the SVC bitstream
|
|
*
|
|
* \return
|
|
**************************************************************************
|
|
*/
|
|
void isvcd_set_default_seq_svc_ext(dec_subset_seq_params_t *ps_seq_svc_ext)
|
|
{
|
|
ps_seq_svc_ext->u1_inter_layer_deblocking_filter_control_present_flag = 0;
|
|
ps_seq_svc_ext->u1_extended_spatial_scalability_idc = 0;
|
|
ps_seq_svc_ext->u1_chroma_phase_x_plus1_flag = 1;
|
|
ps_seq_svc_ext->u1_chroma_phase_y_plus1 = 1;
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_x_plus1_flag =
|
|
ps_seq_svc_ext->u1_chroma_phase_x_plus1_flag;
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1 = ps_seq_svc_ext->u1_chroma_phase_y_plus1;
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset = 0;
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset = 0;
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_right_offset = 0;
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_bottom_offset = 0;
|
|
ps_seq_svc_ext->u1_seq_tcoeff_level_prediction_flag =
|
|
ps_seq_svc_ext->u1_adaptive_tcoeff_level_prediction_flag = 0;
|
|
ps_seq_svc_ext->u1_slice_header_restriction_flag = 0;
|
|
ps_seq_svc_ext->u1_svc_vui_parameters_present_flag = 0;
|
|
}
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : isvcd_parse_subset_sps \en
|
|
dif
|
|
*
|
|
* \brief
|
|
* Decodes Sequence parameter set from the SVC bitstream
|
|
*
|
|
* \return
|
|
* 0 on Success and Error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
WORD32 isvcd_parse_subset_sps(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_bit_stream_t *ps_bitstrm)
|
|
{
|
|
dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
|
|
UWORD8 i;
|
|
dec_seq_params_t *ps_seq = NULL;
|
|
dec_svc_seq_params_t *ps_subset_seq = NULL;
|
|
dec_subset_seq_params_t *ps_seq_svc_ext;
|
|
UWORD8 u1_profile_idc, u1_level_idc, u1_seq_parameter_set_id, u1_mb_aff_flag = 0;
|
|
UWORD16 i2_max_frm_num;
|
|
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
|
|
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
|
|
UWORD8 u1_frm, uc_constraint_set0_flag, uc_constraint_set1_flag, uc_constraint_set2_flag;
|
|
WORD32 i4_cropped_ht, i4_cropped_wd;
|
|
UWORD32 u4_temp;
|
|
UWORD64 u8_temp;
|
|
UWORD32 u4_pic_height_in_map_units, u4_pic_width_in_mbs;
|
|
UWORD32 u2_pic_wd = 0;
|
|
UWORD32 u2_pic_ht = 0;
|
|
UWORD32 u2_frm_wd_y = 0;
|
|
UWORD32 u2_frm_ht_y = 0;
|
|
UWORD32 u2_frm_wd_uv = 0;
|
|
UWORD32 u2_frm_ht_uv = 0;
|
|
UWORD32 u2_crop_offset_y = 0;
|
|
UWORD32 u2_crop_offset_uv = 0;
|
|
WORD32 ret;
|
|
/* High profile related syntax element */
|
|
WORD32 i4_i;
|
|
/* G050 */
|
|
UWORD8 u1_frame_cropping_flag,
|
|
u1_frame_cropping_rect_left_ofst = 0, u1_frame_cropping_rect_right_ofst = 0,
|
|
u1_frame_cropping_rect_top_ofst = 0, u1_frame_cropping_rect_bottom_ofst = 0;
|
|
/* G050 */
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode seq_parameter_set_id and profile and level values */
|
|
/*--------------------------------------------------------------------*/
|
|
SWITCHONTRACE;
|
|
u1_profile_idc = ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
COPYTHECONTEXT("SPS: profile_idc", u1_profile_idc);
|
|
|
|
/* G050 */
|
|
uc_constraint_set0_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
uc_constraint_set1_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
uc_constraint_set2_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
UNUSED(uc_constraint_set1_flag);
|
|
UNUSED(uc_constraint_set2_flag);
|
|
|
|
/*****************************************************/
|
|
/* Read 5 bits for uc_constraint_set3_flag (1 bit) */
|
|
/* and reserved_zero_4bits (4 bits) - Sushant */
|
|
/*****************************************************/
|
|
ih264d_get_bits_h264(ps_bitstrm, 5);
|
|
/* G050 */
|
|
u1_level_idc = (UWORD8) ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
COPYTHECONTEXT("SPS: u4_level_idc", u1_level_idc);
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp & MASK_ERR_SEQ_SET_ID) return ERROR_INV_SPS_PPS_T;
|
|
u1_seq_parameter_set_id = u4_temp;
|
|
COPYTHECONTEXT("SPS: seq_parameter_set_id", u1_seq_parameter_set_id);
|
|
|
|
if(u1_seq_parameter_set_id >= MAX_NUM_SEQ_PARAMS) return ERROR_INV_SPS_PPS_T;
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Find an seq param entry in seqparam array of decStruct */
|
|
/*--------------------------------------------------------------------*/
|
|
ps_subset_seq = ps_svc_lyr_dec->pv_scratch_subset_sps;
|
|
memset(ps_subset_seq, 0, sizeof(dec_svc_seq_params_t));
|
|
ps_seq = ps_dec->pv_scratch_sps_pps;
|
|
memset(ps_seq, 0, sizeof(dec_seq_params_t));
|
|
|
|
if(ps_dec->i4_header_decoded & 1)
|
|
{
|
|
if(NULL != ps_dec->ps_cur_sps)
|
|
*ps_seq = *ps_dec->ps_cur_sps;
|
|
else
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
ps_seq->u1_profile_idc = u1_profile_idc;
|
|
ps_seq->u1_level_idc = u1_level_idc;
|
|
ps_seq->u1_seq_parameter_set_id = u1_seq_parameter_set_id;
|
|
|
|
/* subset_seq_sps_will be stored from location 32 : MAX_NUM_SEQ_PARAMS*/
|
|
u1_seq_parameter_set_id += MAX_NUM_SEQ_PARAMS;
|
|
ps_subset_seq->ps_seq = &ps_dec->ps_sps[u1_seq_parameter_set_id];
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_profile_idc != u1_profile_idc))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_level_idc != u1_level_idc))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
/*******************************************************************/
|
|
/* Initializations for high profile - Sushant */
|
|
/*******************************************************************/
|
|
ps_seq->i4_chroma_format_idc = 1;
|
|
ps_seq->i4_bit_depth_luma_minus8 = 0;
|
|
ps_seq->i4_bit_depth_chroma_minus8 = 0;
|
|
ps_seq->i4_qpprime_y_zero_transform_bypass_flag = 0;
|
|
ps_seq->i4_seq_scaling_matrix_present_flag = 0;
|
|
if(u1_profile_idc == HIGH_PROFILE_IDC || u1_profile_idc == SCALABLE_BASELINE_PROFILE_IDC ||
|
|
u1_profile_idc == SCALABLE_HIGH_PROFILE_IDC)
|
|
{
|
|
/* reading chroma_format_idc */
|
|
ps_seq->i4_chroma_format_idc = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
/* Monochrome is not supported */
|
|
if(ps_seq->i4_chroma_format_idc != 1)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading bit_depth_luma_minus8 */
|
|
ps_seq->i4_bit_depth_luma_minus8 = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if(ps_seq->i4_bit_depth_luma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading bit_depth_chroma_minus8 */
|
|
ps_seq->i4_bit_depth_chroma_minus8 = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if(ps_seq->i4_bit_depth_chroma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading qpprime_y_zero_transform_bypass_flag */
|
|
ps_seq->i4_qpprime_y_zero_transform_bypass_flag = (WORD32) ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_seq->i4_qpprime_y_zero_transform_bypass_flag != 0)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
/* reading seq_scaling_matrix_present_flag */
|
|
ps_seq->i4_seq_scaling_matrix_present_flag = (WORD32) ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_seq->i4_seq_scaling_matrix_present_flag)
|
|
{
|
|
for(i4_i = 0; i4_i < 8; i4_i++)
|
|
{
|
|
ps_seq->u1_seq_scaling_list_present_flag[i4_i] = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
/* initialize u1_use_default_scaling_matrix_flag[i4_i] to zero */
|
|
/* before calling scaling list */
|
|
ps_seq->u1_use_default_scaling_matrix_flag[i4_i] = 0;
|
|
|
|
if(ps_seq->u1_seq_scaling_list_present_flag[i4_i])
|
|
{
|
|
if(i4_i < 6)
|
|
{
|
|
ret = ih264d_scaling_list(ps_seq->i2_scalinglist4x4[i4_i], 16,
|
|
&ps_seq->u1_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
else
|
|
{
|
|
ret = ih264d_scaling_list(ps_seq->i2_scalinglist8x8[i4_i - 6], 64,
|
|
&ps_seq->u1_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
if(ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode MaxFrameNum */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64) 4 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > MAX_BITS_IN_FRAME_NUM)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_seq->u1_bits_in_frm_num = (UWORD8) u8_temp;
|
|
COPYTHECONTEXT("SPS: log2_max_frame_num_minus4", (ps_seq->u1_bits_in_frm_num - 4));
|
|
|
|
i2_max_frm_num = (1 << (ps_seq->u1_bits_in_frm_num));
|
|
ps_seq->u2_u4_max_pic_num_minus1 = i2_max_frm_num - 1;
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode picture order count and related values */
|
|
/*--------------------------------------------------------------------*/
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if(u4_temp > MAX_PIC_ORDER_CNT_TYPE)
|
|
{
|
|
return ERROR_INV_POC_TYPE_T;
|
|
}
|
|
ps_seq->u1_pic_order_cnt_type = u4_temp;
|
|
COPYTHECONTEXT("SPS: pic_order_cnt_type", ps_seq->u1_pic_order_cnt_type);
|
|
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle = 1;
|
|
if(ps_seq->u1_pic_order_cnt_type == 0)
|
|
{
|
|
u8_temp = (UWORD64) 4 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > MAX_BITS_IN_POC_LSB)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_seq->u1_log2_max_pic_order_cnt_lsb_minus = (UWORD8) u8_temp;
|
|
ps_seq->i4_max_pic_order_cntLsb = (1 << u8_temp);
|
|
COPYTHECONTEXT("SPS: log2_max_pic_order_cnt_lsb_minus4", (u8_temp - 4));
|
|
}
|
|
else if(ps_seq->u1_pic_order_cnt_type == 1)
|
|
{
|
|
ps_seq->u1_delta_pic_order_always_zero_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: delta_pic_order_always_zero_flag",
|
|
ps_seq->u1_delta_pic_order_always_zero_flag);
|
|
|
|
ps_seq->i4_ofst_for_non_ref_pic = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_non_ref_pic", ps_seq->i4_ofst_for_non_ref_pic);
|
|
|
|
ps_seq->i4_ofst_for_top_to_bottom_field = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_top_to_bottom_field",
|
|
ps_seq->i4_ofst_for_top_to_bottom_field);
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp > 255) return ERROR_INV_SPS_PPS_T;
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle = u4_temp;
|
|
COPYTHECONTEXT("SPS: num_ref_frames_in_pic_order_cnt_cycle",
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle);
|
|
|
|
for(i = 0; i < ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle; i++)
|
|
{
|
|
ps_seq->i4_ofst_for_ref_frame[i] = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_ref_frame", ps_seq->i4_ofst_for_ref_frame[i]);
|
|
}
|
|
}
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if((u4_temp > H264_MAX_REF_PICS))
|
|
{
|
|
return ERROR_NUM_REF;
|
|
}
|
|
|
|
/* Compare with older num_ref_frames is header is already once */
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_num_ref_frames != u4_temp))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
ps_seq->u1_num_ref_frames = u4_temp;
|
|
COPYTHECONTEXT("SPS: num_ref_frames", ps_seq->u1_num_ref_frames);
|
|
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: gaps_in_frame_num_value_allowed_flag",
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag);
|
|
/* SVC_DEC_REVIEW */
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag = 0;
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode FrameWidth and FrameHeight and related values */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
/* Check for unsupported resolutions*/
|
|
if(u8_temp > (H264_MAX_FRAME_WIDTH >> 4))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
u4_pic_width_in_mbs = (UWORD32) u8_temp;
|
|
COPYTHECONTEXT("SPS: pic_width_in_mbs_minus1", u4_pic_width_in_mbs - 1);
|
|
|
|
u8_temp = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > (H264_MAX_FRAME_HEIGHT >> 4))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
u4_pic_height_in_map_units = (UWORD32) u8_temp;
|
|
|
|
ps_seq->u2_frm_wd_in_mbs = u4_pic_width_in_mbs;
|
|
ps_seq->u2_frm_ht_in_mbs = u4_pic_height_in_map_units;
|
|
|
|
u2_pic_wd = (u4_pic_width_in_mbs << 4);
|
|
u2_pic_ht = (u4_pic_height_in_map_units << 4);
|
|
/*--------------------------------------------------------------------*/
|
|
/* Get the value of MaxMbAddress and Number of bits needed for it */
|
|
/*--------------------------------------------------------------------*/
|
|
ps_seq->u2_max_mb_addr = (ps_seq->u2_frm_wd_in_mbs * ps_seq->u2_frm_ht_in_mbs) - 1;
|
|
|
|
ps_seq->u2_total_num_of_mbs = ps_seq->u2_max_mb_addr + 1;
|
|
|
|
ps_seq->u1_level_idc = ih264d_correct_level_idc(u1_level_idc, ps_seq->u2_total_num_of_mbs);
|
|
|
|
u1_frm = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_frame_mbs_only_flag != u1_frm))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
ps_seq->u1_frame_mbs_only_flag = u1_frm;
|
|
|
|
COPYTHECONTEXT("SPS: frame_mbs_only_flag", u1_frm);
|
|
|
|
if(!u1_frm) u1_mb_aff_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_mb_aff_flag != u1_mb_aff_flag))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
if(!u1_frm)
|
|
{
|
|
u2_pic_ht <<= 1;
|
|
ps_seq->u1_mb_aff_flag = u1_mb_aff_flag;
|
|
COPYTHECONTEXT("SPS: mb_adaptive_frame_field_flag", ps_seq->u1_mb_aff_flag);
|
|
}
|
|
else
|
|
ps_seq->u1_mb_aff_flag = 0;
|
|
|
|
ps_seq->u1_direct_8x8_inference_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
COPYTHECONTEXT("SPS: direct_8x8_inference_flag", ps_seq->u1_direct_8x8_inference_flag);
|
|
|
|
/* G050 */
|
|
u1_frame_cropping_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: frame_cropping_flag", u1_frame_cropping_flag);
|
|
|
|
if(u1_frame_cropping_flag)
|
|
{
|
|
u1_frame_cropping_rect_left_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_left_offset", u1_frame_cropping_rect_left_ofst);
|
|
u1_frame_cropping_rect_right_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_right_offset", u1_frame_cropping_rect_right_ofst);
|
|
u1_frame_cropping_rect_top_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_top_offset", u1_frame_cropping_rect_top_ofst);
|
|
u1_frame_cropping_rect_bottom_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_bottom_offset",
|
|
u1_frame_cropping_rect_bottom_ofst);
|
|
}
|
|
/* G050 */
|
|
ps_seq->u1_vui_parameters_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: vui_parameters_present_flag", ps_seq->u1_vui_parameters_present_flag);
|
|
|
|
u2_frm_wd_y = u2_pic_wd + (UWORD8) (PAD_LEN_Y_H << 1);
|
|
if(1 == ps_dec->u4_share_disp_buf)
|
|
{
|
|
if(ps_dec->u4_app_disp_width > u2_frm_wd_y) u2_frm_wd_y = ps_dec->u4_app_disp_width;
|
|
}
|
|
|
|
u2_frm_ht_y = u2_pic_ht + (UWORD8) (PAD_LEN_Y_V << 2);
|
|
u2_frm_wd_uv = u2_pic_wd + (UWORD8) (PAD_LEN_UV_H << 2);
|
|
u2_frm_wd_uv = MAX(u2_frm_wd_uv, u2_frm_wd_y);
|
|
|
|
u2_frm_ht_uv = (u2_pic_ht >> 1) + (UWORD8) (PAD_LEN_UV_V << 2);
|
|
u2_frm_ht_uv = MAX(u2_frm_ht_uv, (u2_frm_ht_y >> 1));
|
|
|
|
/* Calculate display picture width, height and start u4_ofst from YUV420 */
|
|
/* pictute buffers as per cropping information parsed above */
|
|
{
|
|
UWORD16 u2_rgt_ofst = 0;
|
|
UWORD16 u2_lft_ofst = 0;
|
|
UWORD16 u2_top_ofst = 0;
|
|
UWORD16 u2_btm_ofst = 0;
|
|
UWORD8 u1_frm_mbs_flag;
|
|
UWORD8 u1_vert_mult_factor;
|
|
|
|
if(u1_frame_cropping_flag)
|
|
{
|
|
/* Calculate right and left u4_ofst for cropped picture */
|
|
u2_rgt_ofst = u1_frame_cropping_rect_right_ofst << 1;
|
|
u2_lft_ofst = u1_frame_cropping_rect_left_ofst << 1;
|
|
|
|
/* Know frame MBs only u4_flag */
|
|
u1_frm_mbs_flag = (1 == ps_seq->u1_frame_mbs_only_flag);
|
|
|
|
/* Simplify the vertical u4_ofst calculation from field/frame */
|
|
u1_vert_mult_factor = (2 - u1_frm_mbs_flag);
|
|
|
|
/* Calculate bottom and top u4_ofst for cropped picture */
|
|
u2_btm_ofst = (u1_frame_cropping_rect_bottom_ofst << u1_vert_mult_factor);
|
|
u2_top_ofst = (u1_frame_cropping_rect_top_ofst << u1_vert_mult_factor);
|
|
}
|
|
|
|
/* Calculate u4_ofst from start of YUV 420 picture buffer to start of*/
|
|
/* cropped picture buffer */
|
|
u2_crop_offset_y = (u2_frm_wd_y * u2_top_ofst) + (u2_lft_ofst);
|
|
u2_crop_offset_uv =
|
|
(u2_frm_wd_uv * (u2_top_ofst >> 1)) + (u2_lft_ofst >> 1) * YUV420SP_FACTOR;
|
|
/* Calculate the display picture width and height based on crop */
|
|
/* information */
|
|
i4_cropped_ht = (WORD32) u2_pic_ht - (WORD32) (u2_btm_ofst + u2_top_ofst);
|
|
i4_cropped_wd = (WORD32) u2_pic_wd - (WORD32) (u2_rgt_ofst + u2_lft_ofst);
|
|
|
|
if((i4_cropped_ht < MB_SIZE) || (i4_cropped_wd < MB_SIZE))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_pic_wd != u2_pic_wd))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_disp_width != i4_cropped_wd))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_pic_ht != u2_pic_ht))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_disp_height != i4_cropped_ht))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
/* Check again for unsupported resolutions with updated values*/
|
|
if((u2_pic_wd > SVCD_MAX_FRAME_WIDTH) || (u2_pic_ht > SVCD_MAX_FRAME_HEIGHT) ||
|
|
(u2_pic_wd < SVCD_MIN_FRAME_WIDTH) || (u2_pic_ht < SVCD_MIN_FRAME_HEIGHT) ||
|
|
(u2_pic_wd * (UWORD32) u2_pic_ht > SVCD_MAX_FRAME_SIZE))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
|
|
/* If MBAff is enabled, decoder support is limited to streams with
|
|
* width less than half of H264_MAX_FRAME_WIDTH.
|
|
* In case of MBAff decoder processes two rows at a time
|
|
*/
|
|
if((u2_pic_wd << ps_seq->u1_mb_aff_flag) > H264_MAX_FRAME_WIDTH)
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
}
|
|
|
|
if(1 == ps_seq->u1_vui_parameters_present_flag)
|
|
{
|
|
ret = ih264d_parse_vui_parametres(&ps_seq->s_vui, ps_bitstrm);
|
|
if(ret != OK) return ret;
|
|
}
|
|
ps_seq_svc_ext = &ps_subset_seq->s_sps_svc_ext;
|
|
|
|
isvcd_set_default_seq_svc_ext(ps_seq_svc_ext);
|
|
|
|
if(SCALABLE_BASELINE_PROFILE_IDC == ps_seq->u1_profile_idc ||
|
|
SCALABLE_HIGH_PROFILE_IDC == ps_seq->u1_profile_idc)
|
|
{
|
|
SWITCHONTRACE;
|
|
ps_seq_svc_ext->u1_inter_layer_deblocking_filter_control_present_flag =
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_inter_layer_deblocking_filter_control_present_flag",
|
|
ps_seq_svc_ext->u1_inter_layer_deblocking_filter_control_present_flag);
|
|
|
|
ps_seq_svc_ext->u1_extended_spatial_scalability_idc = ih264d_get_bits_h264(ps_bitstrm, 2);
|
|
COPYTHECONTEXT("SPS_EXt: u1_extended_spatial_scalability_idc",
|
|
ps_seq_svc_ext->u1_extended_spatial_scalability_idc);
|
|
|
|
/* u1_extended_spatial_scalability_idc value 0, 1 and 2 are supported */
|
|
if(ps_seq_svc_ext->u1_extended_spatial_scalability_idc > 2)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
|
|
/* ChromaArrayType = i4_chroma_format_idc if separate_colour_plane_flag =
|
|
* 0 for all chroma format except 4:4:4 */
|
|
if(1 == ps_seq->i4_chroma_format_idc || 2 == ps_seq->i4_chroma_format_idc)
|
|
{
|
|
ps_seq_svc_ext->u1_chroma_phase_x_plus1_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_chroma_phase_x_plus1_flag",
|
|
ps_seq_svc_ext->u1_chroma_phase_x_plus1_flag);
|
|
}
|
|
|
|
if(1 == ps_seq->i4_chroma_format_idc)
|
|
{
|
|
ps_seq_svc_ext->u1_chroma_phase_y_plus1 = ih264d_get_bits_h264(ps_bitstrm, 2);
|
|
COPYTHECONTEXT("SPS_EXt: u1_chroma_phase_y_plus1",
|
|
ps_seq_svc_ext->u1_chroma_phase_y_plus1);
|
|
|
|
if(ps_seq_svc_ext->u1_chroma_phase_y_plus1 >= 3)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
}
|
|
|
|
/* inferred values not covered in isvcd_set_default_seq_svc_ext*/
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_x_plus1_flag =
|
|
ps_seq_svc_ext->u1_chroma_phase_x_plus1_flag;
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1 =
|
|
ps_seq_svc_ext->u1_chroma_phase_y_plus1;
|
|
|
|
if(1 == ps_seq_svc_ext->u1_extended_spatial_scalability_idc)
|
|
{
|
|
if(ps_seq->i4_chroma_format_idc > 0)
|
|
{
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_x_plus1_flag =
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_seq_ref_layer_chroma_phase_x_plus1_flag",
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_x_plus1_flag);
|
|
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1 =
|
|
ih264d_get_bits_h264(ps_bitstrm, 2);
|
|
COPYTHECONTEXT("SPS_EXt: u1_seq_ref_layer_chroma_phase_y_plus1",
|
|
ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1);
|
|
|
|
if(ps_seq_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1 >= 3)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
}
|
|
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset =
|
|
ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS_EXt: i4_seq_scaled_ref_layer_left_offset",
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset);
|
|
|
|
if(ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset != 0)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
|
|
if(ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset >= MAX_SCLD_REF_LAYER_OFFSET ||
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset < MIN_SCLD_REF_LAYER_OFFSET)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset =
|
|
ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS_EXt: i4_seq_scaled_ref_layer_top_offset",
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset);
|
|
|
|
if(ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset != 0)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
|
|
if(ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset >= MAX_SCLD_REF_LAYER_OFFSET ||
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset < MIN_SCLD_REF_LAYER_OFFSET)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_right_offset =
|
|
ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS_EXt: i4_seq_scaled_ref_layer_right_offset",
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_right_offset);
|
|
|
|
if(ps_seq_svc_ext->i4_seq_scaled_ref_layer_right_offset >= MAX_SCLD_REF_LAYER_OFFSET ||
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_right_offset < MIN_SCLD_REF_LAYER_OFFSET)
|
|
{
|
|
return ERROR_SVC_INV_SUBSET_SPS;
|
|
}
|
|
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_bottom_offset =
|
|
ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS_EXt: i4_seq_scaled_ref_layer_bottom_offset",
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_bottom_offset);
|
|
|
|
if(ps_seq_svc_ext->i4_seq_scaled_ref_layer_bottom_offset >= MAX_SCLD_REF_LAYER_OFFSET ||
|
|
ps_seq_svc_ext->i4_seq_scaled_ref_layer_bottom_offset < MIN_SCLD_REF_LAYER_OFFSET)
|
|
{
|
|
return ERROR_INV_SLICE_HDR_T;
|
|
}
|
|
}
|
|
|
|
ps_seq_svc_ext->u1_seq_tcoeff_level_prediction_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_seq_tcoeff_level_prediction_flag",
|
|
ps_seq_svc_ext->u1_seq_tcoeff_level_prediction_flag);
|
|
|
|
if(1 == ps_seq_svc_ext->u1_seq_tcoeff_level_prediction_flag)
|
|
{
|
|
ps_seq_svc_ext->u1_adaptive_tcoeff_level_prediction_flag =
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_adaptive_tcoeff_level_prediction_flag",
|
|
ps_seq_svc_ext->u1_adaptive_tcoeff_level_prediction_flag);
|
|
}
|
|
|
|
ps_seq_svc_ext->u1_slice_header_restriction_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_slice_header_restriction_flag",
|
|
ps_seq_svc_ext->u1_slice_header_restriction_flag);
|
|
|
|
ps_seq_svc_ext->u1_svc_vui_parameters_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS_EXt: u1_svc_vui_parameters_present_flag",
|
|
ps_seq_svc_ext->u1_svc_vui_parameters_present_flag);
|
|
|
|
if(1 == ps_seq_svc_ext->u1_svc_vui_parameters_present_flag)
|
|
{
|
|
if(NULL ==
|
|
ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].s_sps_svc_ext.ps_svc_vui_ext)
|
|
{
|
|
void *pv_buf;
|
|
UWORD32 size;
|
|
/* Memory allocation only if VUI is enabled in a particular subset SPS*/
|
|
size = sizeof(svc_vui_ext_t);
|
|
pv_buf = ps_dec->pf_aligned_alloc(ps_dec->pv_mem_ctxt, 128, size);
|
|
RETURN_IF((NULL == pv_buf), IV_FAIL);
|
|
memset(pv_buf, 0, size);
|
|
ps_seq_svc_ext->ps_svc_vui_ext = pv_buf;
|
|
ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id]
|
|
.s_sps_svc_ext.ps_svc_vui_ext = pv_buf;
|
|
}
|
|
else
|
|
{
|
|
ps_seq_svc_ext->ps_svc_vui_ext =
|
|
ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id]
|
|
.s_sps_svc_ext.ps_svc_vui_ext;
|
|
}
|
|
ret = isvcd_parse_vui_ext_parametres(ps_seq_svc_ext->ps_svc_vui_ext, ps_bitstrm);
|
|
if(ret != OK) return ret;
|
|
}
|
|
}
|
|
/* Add conditions for SCALABLE BASELINE PROFILE */
|
|
if(SCALABLE_BASELINE_PROFILE_IDC == ps_seq->u1_profile_idc ||
|
|
((SCALABLE_HIGH_PROFILE_IDC == ps_seq->u1_profile_idc) && (1 == uc_constraint_set0_flag)))
|
|
{
|
|
if(ps_seq->i4_chroma_format_idc != 1)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
if(ps_seq->i4_bit_depth_luma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
if(ps_seq->i4_bit_depth_chroma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
if(ps_seq->i4_qpprime_y_zero_transform_bypass_flag != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
if(ps_seq->u1_frame_mbs_only_flag != 1)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
if((0 != ps_seq_svc_ext->i4_seq_scaled_ref_layer_left_offset % 16) &&
|
|
(0 != ps_seq_svc_ext->i4_seq_scaled_ref_layer_top_offset % 16))
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
}
|
|
/* Compare older num_reorder_frames with the new one if header is already
|
|
* decoded */
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_vui_parameters_present_flag) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].s_vui.u1_bitstream_restriction_flag))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
/* In case bitstream read has exceeded the filled size, then return an error */
|
|
if(EXCEED_OFFSET(ps_bitstrm))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* All initializations to ps_dec are beyond this point */
|
|
/*--------------------------------------------------------------------*/
|
|
{
|
|
WORD32 reorder_depth = ih264d_get_dpb_size(ps_seq);
|
|
if((1 == ps_seq->u1_vui_parameters_present_flag) &&
|
|
(1 == ps_seq->s_vui.u1_bitstream_restriction_flag))
|
|
{
|
|
reorder_depth = ps_seq->s_vui.u4_num_reorder_frames + 1;
|
|
}
|
|
|
|
if(reorder_depth > H264_MAX_REF_PICS)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if(ps_seq->u1_frame_mbs_only_flag != 1) reorder_depth *= 2;
|
|
ps_subset_seq->i4_reorder_depth = reorder_depth + DISPLAY_LATENCY;
|
|
}
|
|
ps_subset_seq->u2_disp_height = i4_cropped_ht;
|
|
ps_subset_seq->u2_disp_width = i4_cropped_wd;
|
|
ps_subset_seq->u2_pic_wd = u2_pic_wd;
|
|
ps_subset_seq->u2_pic_ht = u2_pic_ht;
|
|
|
|
/* Assuming 8k is the maximum resolution svc dec supports*/
|
|
if(u2_frm_wd_y > H264_MAX_FRAME_WIDTH) return (NOT_OK);
|
|
if(u2_frm_ht_y > H264_MAX_FRAME_HEIGHT) return (NOT_OK);
|
|
if(u2_frm_wd_uv > H264_MAX_FRAME_WIDTH) return (NOT_OK);
|
|
if(u2_frm_ht_uv > H264_MAX_FRAME_HEIGHT) return (NOT_OK);
|
|
|
|
/* Determining the Width and Height of Frame from that of Picture */
|
|
ps_subset_seq->u2_frm_wd_y = u2_frm_wd_y;
|
|
ps_subset_seq->u2_frm_ht_y = u2_frm_ht_y;
|
|
ps_subset_seq->u2_frm_wd_uv = u2_frm_wd_uv;
|
|
ps_subset_seq->u2_frm_ht_uv = u2_frm_ht_uv;
|
|
|
|
ps_subset_seq->u1_pad_len_y_v = (UWORD8) (PAD_LEN_Y_V << (1 - u1_frm));
|
|
ps_subset_seq->u1_pad_len_cr_v = (UWORD8) (PAD_LEN_UV_V << (1 - u1_frm));
|
|
|
|
ps_subset_seq->u2_crop_offset_y = u2_crop_offset_y;
|
|
ps_subset_seq->u2_crop_offset_uv = u2_crop_offset_uv;
|
|
|
|
if(((ps_dec->u2_pic_wd * ps_dec->u2_pic_ht) <
|
|
(ps_subset_seq->u2_pic_wd * ps_subset_seq->u2_pic_ht)) ||
|
|
(ps_dec->i4_reorder_depth < ps_subset_seq->i4_reorder_depth))
|
|
{
|
|
ps_dec->i4_reorder_depth = ps_subset_seq->i4_reorder_depth;
|
|
|
|
ps_dec->u2_disp_height = ps_subset_seq->u2_disp_height;
|
|
ps_dec->u2_disp_width = ps_subset_seq->u2_disp_width;
|
|
|
|
ps_dec->u2_pic_wd = ps_subset_seq->u2_pic_wd;
|
|
ps_dec->u2_pic_ht = ps_subset_seq->u2_pic_ht;
|
|
ps_dec->u4_total_mbs = ps_seq->u2_total_num_of_mbs << (1 - ps_seq->u1_frame_mbs_only_flag);
|
|
|
|
/* Determining the Width and Height of Frame from that of Picture */
|
|
ps_dec->u2_frm_wd_y = ps_subset_seq->u2_frm_wd_y;
|
|
ps_dec->u2_frm_ht_y = ps_subset_seq->u2_frm_ht_y;
|
|
ps_dec->u2_frm_wd_uv = ps_subset_seq->u2_frm_wd_uv;
|
|
ps_dec->u2_frm_ht_uv = ps_subset_seq->u2_frm_ht_uv;
|
|
|
|
ps_dec->s_pad_mgr.u1_pad_len_y_v = ps_subset_seq->u1_pad_len_y_v;
|
|
ps_dec->s_pad_mgr.u1_pad_len_cr_v = ps_subset_seq->u1_pad_len_cr_v;
|
|
|
|
ps_dec->u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs;
|
|
ps_dec->u2_frm_ht_in_mbs = ps_seq->u2_frm_ht_in_mbs;
|
|
|
|
ps_dec->u2_crop_offset_y = ps_subset_seq->u2_crop_offset_y;
|
|
ps_dec->u2_crop_offset_uv = ps_subset_seq->u2_crop_offset_uv;
|
|
}
|
|
|
|
ps_seq->u1_is_valid = TRUE;
|
|
ps_dec->ps_sps[u1_seq_parameter_set_id] = *ps_seq;
|
|
if(NULL != ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].s_sps_svc_ext.ps_svc_vui_ext)
|
|
{
|
|
ps_seq_svc_ext->ps_svc_vui_ext =
|
|
ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].s_sps_svc_ext.ps_svc_vui_ext;
|
|
}
|
|
ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id] = *ps_subset_seq;
|
|
ps_dec->ps_cur_sps = &ps_dec->ps_sps[u1_seq_parameter_set_id];
|
|
ps_svc_lyr_dec->ps_cur_subset_sps = &ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id];
|
|
|
|
return OK;
|
|
}
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : isvcd_dec_ref_base_pic_marking \endif
|
|
*
|
|
* \brief
|
|
* Decodes reference base pic marking params
|
|
*
|
|
* \return
|
|
* 0 on Success and error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
|
|
WORD32 isvcd_dec_ref_base_pic_marking(
|
|
dec_ref_base_pic_marking_params_t *ps_ref_base_pic_marking_svc_ext,
|
|
dec_bit_stream_t *ps_bitstrm)
|
|
{
|
|
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
|
|
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
|
|
|
|
SWITCHONTRACE;
|
|
|
|
ps_ref_base_pic_marking_svc_ext->u1_adaptive_ref_base_pic_marking_mode_flag =
|
|
ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT(
|
|
"Dec ref base pic marking params : "
|
|
"u1_adaptive_ref_base_pic_marking_mode_flag",
|
|
ps_ref_base_pic_marking_svc_ext->u1_adaptive_ref_base_pic_marking_mode_flag);
|
|
|
|
if(1 == ps_ref_base_pic_marking_svc_ext->u1_adaptive_ref_base_pic_marking_mode_flag)
|
|
{
|
|
do
|
|
{
|
|
ps_ref_base_pic_marking_svc_ext->u4_memory_management_base_control_operation =
|
|
ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT(
|
|
"Dec ref base pic marking params : "
|
|
"u4_memory_management_base_control_operation",
|
|
ps_ref_base_pic_marking_svc_ext->u4_memory_management_base_control_operation);
|
|
|
|
if(1 == ps_ref_base_pic_marking_svc_ext->u4_memory_management_base_control_operation)
|
|
{
|
|
ps_ref_base_pic_marking_svc_ext->u4_difference_of_base_pic_nums_minus1 =
|
|
ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT(
|
|
"Dec ref base pic marking params : "
|
|
"u4_difference_of_base_pic_nums_minus1",
|
|
ps_ref_base_pic_marking_svc_ext->u4_difference_of_base_pic_nums_minus1);
|
|
}
|
|
|
|
if(2 == ps_ref_base_pic_marking_svc_ext->u4_memory_management_base_control_operation)
|
|
{
|
|
ps_ref_base_pic_marking_svc_ext->u4_long_term_base_pic_num =
|
|
ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("Dec ref base pic marking params : u4_long_term_base_pic_num",
|
|
ps_ref_base_pic_marking_svc_ext->u4_long_term_base_pic_num);
|
|
}
|
|
|
|
} while(0 != ps_ref_base_pic_marking_svc_ext->u4_memory_management_base_control_operation);
|
|
}
|
|
SWITCHOFFTRACE;
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : isvcd_parse_nal_unit \endif
|
|
*
|
|
* \brief
|
|
* Decodes NAL unit
|
|
*
|
|
* \return
|
|
* 0 on Success and error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
|
|
WORD32 isvcd_parse_nal_unit(svc_dec_lyr_struct_t *dec_svc_hdl, UWORD8 u1_nal_ref_idc)
|
|
{
|
|
dec_bit_stream_t *ps_bitstrm;
|
|
|
|
dec_struct_t *ps_dec;
|
|
svc_dec_lyr_struct_t *ps_svc_lyr_dec;
|
|
UWORD8 u1_nal_unit_type;
|
|
WORD32 i_status = OK;
|
|
|
|
ps_svc_lyr_dec = (svc_dec_lyr_struct_t *) dec_svc_hdl;
|
|
ps_dec = &ps_svc_lyr_dec->s_dec;
|
|
|
|
{
|
|
SWITCHOFFTRACE;
|
|
u1_nal_unit_type = ps_dec->u1_nal_unit_type;
|
|
|
|
ps_bitstrm = ps_dec->ps_bitstrm;
|
|
|
|
// Skip all NALUs if SPS and PPS are not decoded
|
|
switch(u1_nal_unit_type)
|
|
{
|
|
case SLICE_DATA_PARTITION_A_NAL:
|
|
case SLICE_DATA_PARTITION_B_NAL:
|
|
case SLICE_DATA_PARTITION_C_NAL:
|
|
if(!ps_dec->i4_decode_header) ih264d_parse_slice_partition(ps_dec, ps_bitstrm);
|
|
break;
|
|
|
|
case IDR_SLICE_NAL:
|
|
case SLICE_NAL:
|
|
|
|
if(ps_svc_lyr_dec->u1_base_res_flag != 1)
|
|
{
|
|
return NOT_OK;
|
|
}
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
if(ps_dec->i4_header_decoded == 3)
|
|
{
|
|
/* ! */
|
|
DEBUG_THREADS_PRINTF("Decoding a slice NAL\n");
|
|
{
|
|
ih264d_get_pre_sei_params(ps_dec, u1_nal_unit_type);
|
|
/* ! */
|
|
ps_dec->u4_slice_start_code_found = 1;
|
|
|
|
i_status = isvcd_parse_decode_slice(
|
|
(UWORD8) (u1_nal_unit_type == IDR_SLICE_NAL), u1_nal_ref_idc,
|
|
ps_svc_lyr_dec);
|
|
|
|
if(i_status != OK)
|
|
{
|
|
return i_status;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case SEI_NAL:
|
|
case PREFIX_UNIT_NAL:
|
|
case SEQ_PARAM_NAL:
|
|
case PIC_PARAM_NAL:
|
|
case SUBSET_SPS_NAL:
|
|
H264_DEC_DEBUG_PRINT("\nUnknown NAL type %d\n", u1_nal_unit_type);
|
|
break;
|
|
|
|
case ACCESS_UNIT_DELIMITER_RBSP:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_access_unit_delimiter_rbsp(ps_dec);
|
|
}
|
|
break;
|
|
// ignore the END_OF_SEQ_RBSP NAL and decode even after this NAL
|
|
case END_OF_STREAM_RBSP:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_parse_end_of_stream(ps_dec);
|
|
}
|
|
break;
|
|
case FILLER_DATA_NAL:
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
ih264d_parse_filler_data(ps_dec, ps_bitstrm);
|
|
}
|
|
break;
|
|
case CODED_SLICE_EXTENSION_NAL:
|
|
|
|
if(ps_svc_lyr_dec->u1_base_res_flag == 1)
|
|
{
|
|
return NOT_OK;
|
|
}
|
|
if(!ps_dec->i4_decode_header)
|
|
{
|
|
if(ps_dec->i4_header_decoded == 3)
|
|
{
|
|
/* ! */
|
|
DEBUG_THREADS_PRINTF("Decoding an SVC slice NAL\n");
|
|
{
|
|
{
|
|
ih264d_get_pre_sei_params(ps_dec, u1_nal_unit_type);
|
|
/* ! */
|
|
ps_dec->u4_slice_start_code_found = 1;
|
|
|
|
i_status = isvcd_parse_decode_slice_ext_nal(
|
|
(UWORD8) (ps_svc_lyr_dec->ps_nal_svc_ext->u1_idr_flag),
|
|
u1_nal_ref_idc, ps_svc_lyr_dec);
|
|
|
|
if(i_status != OK)
|
|
{
|
|
return i_status;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
H264_DEC_DEBUG_PRINT("\nUnknown NAL type %d\n", u1_nal_unit_type);
|
|
break;
|
|
}
|
|
}
|
|
return i_status;
|
|
}
|
|
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : isvcd_parse_sps \endif
|
|
*
|
|
* \brief
|
|
* Decodes Picture Parameter set
|
|
*
|
|
* \return
|
|
* 0 on Success and Error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
WORD32 isvcd_parse_sps(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_bit_stream_t *ps_bitstrm)
|
|
{
|
|
dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
|
|
UWORD8 i;
|
|
dec_seq_params_t *ps_seq = NULL;
|
|
dec_svc_seq_params_t *ps_subset_seq = NULL;
|
|
UWORD8 u1_profile_idc, u1_level_idc, u1_seq_parameter_set_id, u1_mb_aff_flag = 0;
|
|
UWORD16 i2_max_frm_num;
|
|
UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer;
|
|
UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst;
|
|
UWORD8 u1_frm, uc_constraint_set0_flag, uc_constraint_set1_flag, uc_constraint_set2_flag;
|
|
WORD32 i4_cropped_ht, i4_cropped_wd;
|
|
UWORD32 u4_temp;
|
|
UWORD64 u8_temp;
|
|
UWORD32 u4_pic_height_in_map_units, u4_pic_width_in_mbs;
|
|
UWORD32 u2_pic_wd = 0;
|
|
UWORD32 u2_pic_ht = 0;
|
|
UWORD32 u2_frm_wd_y = 0;
|
|
UWORD32 u2_frm_ht_y = 0;
|
|
UWORD32 u2_frm_wd_uv = 0;
|
|
UWORD32 u2_frm_ht_uv = 0;
|
|
UWORD32 u2_crop_offset_y = 0;
|
|
UWORD32 u2_crop_offset_uv = 0;
|
|
WORD32 ret;
|
|
WORD32 num_reorder_frames;
|
|
/* High profile related syntax element */
|
|
WORD32 i4_i;
|
|
/* G050 */
|
|
UWORD8 u1_frame_cropping_flag,
|
|
u1_frame_cropping_rect_left_ofst = 0, u1_frame_cropping_rect_right_ofst = 0,
|
|
u1_frame_cropping_rect_top_ofst = 0, u1_frame_cropping_rect_bottom_ofst = 0;
|
|
/* G050 */
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode seq_parameter_set_id and profile and level values */
|
|
/*--------------------------------------------------------------------*/
|
|
SWITCHONTRACE;
|
|
u1_profile_idc = ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
COPYTHECONTEXT("SPS: profile_idc", u1_profile_idc);
|
|
|
|
/* G050 */
|
|
uc_constraint_set0_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
uc_constraint_set1_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
uc_constraint_set2_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
UNUSED(uc_constraint_set2_flag);
|
|
/*****************************************************/
|
|
/* Read 5 bits for uc_constraint_set3_flag (1 bit) */
|
|
/* and reserved_zero_4bits (4 bits) - Sushant */
|
|
/*****************************************************/
|
|
ih264d_get_bits_h264(ps_bitstrm, 5);
|
|
/* G050 */
|
|
/* Check whether particular profile is suported or not */
|
|
/* Check whether particular profile is suported or not */
|
|
if((u1_profile_idc != MAIN_PROFILE_IDC) && (u1_profile_idc != BASE_PROFILE_IDC) &&
|
|
(u1_profile_idc != HIGH_PROFILE_IDC))
|
|
{
|
|
/* Apart from Baseline, main and high profile,
|
|
* only extended profile is supported provided
|
|
* uc_constraint_set0_flag or uc_constraint_set1_flag are set to 1
|
|
*/
|
|
if((u1_profile_idc != EXTENDED_PROFILE_IDC) ||
|
|
((uc_constraint_set1_flag != 1) && (uc_constraint_set0_flag != 1)))
|
|
{
|
|
return (ERROR_FEATURE_UNAVAIL);
|
|
}
|
|
}
|
|
|
|
u1_level_idc = ih264d_get_bits_h264(ps_bitstrm, 8);
|
|
COPYTHECONTEXT("SPS: u4_level_idc", u1_level_idc);
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp & MASK_ERR_SEQ_SET_ID) return ERROR_INV_SPS_PPS_T;
|
|
u1_seq_parameter_set_id = u4_temp;
|
|
COPYTHECONTEXT("SPS: seq_parameter_set_id", u1_seq_parameter_set_id);
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Find an seq param entry in seqparam array of decStruct */
|
|
/*--------------------------------------------------------------------*/
|
|
ps_subset_seq = ps_svc_lyr_dec->pv_scratch_subset_sps;
|
|
memset(ps_subset_seq, 0, sizeof(dec_svc_seq_params_t));
|
|
ps_seq = ps_dec->pv_scratch_sps_pps;
|
|
memset(ps_seq, 0, sizeof(dec_seq_params_t));
|
|
|
|
if(ps_dec->i4_header_decoded & 1)
|
|
{
|
|
if(ps_dec->ps_cur_sps != NULL)
|
|
*ps_seq = *ps_dec->ps_cur_sps;
|
|
else
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_profile_idc != u1_profile_idc))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_level_idc != u1_level_idc))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
ps_seq->u1_profile_idc = u1_profile_idc;
|
|
ps_seq->u1_level_idc = u1_level_idc;
|
|
ps_seq->u1_seq_parameter_set_id = u1_seq_parameter_set_id;
|
|
ps_subset_seq->ps_seq = &ps_dec->ps_sps[u1_seq_parameter_set_id];
|
|
|
|
/*******************************************************************/
|
|
/* Initializations for high profile - Sushant */
|
|
/*******************************************************************/
|
|
ps_seq->i4_chroma_format_idc = 1;
|
|
ps_seq->i4_bit_depth_luma_minus8 = 0;
|
|
ps_seq->i4_bit_depth_chroma_minus8 = 0;
|
|
ps_seq->i4_qpprime_y_zero_transform_bypass_flag = 0;
|
|
ps_seq->i4_seq_scaling_matrix_present_flag = 0;
|
|
if(u1_profile_idc == HIGH_PROFILE_IDC || u1_profile_idc == SCALABLE_BASELINE_PROFILE_IDC ||
|
|
u1_profile_idc == SCALABLE_HIGH_PROFILE_IDC)
|
|
{
|
|
/* reading chroma_format_idc */
|
|
ps_seq->i4_chroma_format_idc = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
/* Monochrome is not supported */
|
|
if(ps_seq->i4_chroma_format_idc != 1)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading bit_depth_luma_minus8 */
|
|
ps_seq->i4_bit_depth_luma_minus8 = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if(ps_seq->i4_bit_depth_luma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading bit_depth_chroma_minus8 */
|
|
ps_seq->i4_bit_depth_chroma_minus8 = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if(ps_seq->i4_bit_depth_chroma_minus8 != 0)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
|
|
/* reading qpprime_y_zero_transform_bypass_flag */
|
|
ps_seq->i4_qpprime_y_zero_transform_bypass_flag = (WORD32) ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_seq->i4_qpprime_y_zero_transform_bypass_flag != 0)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
/* reading seq_scaling_matrix_present_flag */
|
|
ps_seq->i4_seq_scaling_matrix_present_flag = (WORD32) ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_seq->i4_seq_scaling_matrix_present_flag)
|
|
{
|
|
for(i4_i = 0; i4_i < 8; i4_i++)
|
|
{
|
|
ps_seq->u1_seq_scaling_list_present_flag[i4_i] = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
/* initialize u1_use_default_scaling_matrix_flag[i4_i] to zero */
|
|
/* before calling scaling list */
|
|
ps_seq->u1_use_default_scaling_matrix_flag[i4_i] = 0;
|
|
|
|
if(ps_seq->u1_seq_scaling_list_present_flag[i4_i])
|
|
{
|
|
if(i4_i < 6)
|
|
{
|
|
ret = ih264d_scaling_list(ps_seq->i2_scalinglist4x4[i4_i], 16,
|
|
&ps_seq->u1_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
else
|
|
{
|
|
ret = ih264d_scaling_list(ps_seq->i2_scalinglist8x8[i4_i - 6], 64,
|
|
&ps_seq->u1_use_default_scaling_matrix_flag[i4_i],
|
|
ps_bitstrm);
|
|
}
|
|
if(ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode MaxFrameNum */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64) 4 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > MAX_BITS_IN_FRAME_NUM)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_seq->u1_bits_in_frm_num = (UWORD8) u8_temp;
|
|
COPYTHECONTEXT("SPS: log2_max_frame_num_minus4", (ps_seq->u1_bits_in_frm_num - 4));
|
|
|
|
i2_max_frm_num = (1 << (ps_seq->u1_bits_in_frm_num));
|
|
ps_seq->u2_u4_max_pic_num_minus1 = i2_max_frm_num - 1;
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode picture order count and related values */
|
|
/*--------------------------------------------------------------------*/
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp > MAX_PIC_ORDER_CNT_TYPE)
|
|
{
|
|
return ERROR_INV_POC_TYPE_T;
|
|
}
|
|
ps_seq->u1_pic_order_cnt_type = u4_temp;
|
|
COPYTHECONTEXT("SPS: pic_order_cnt_type", ps_seq->u1_pic_order_cnt_type);
|
|
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle = 1;
|
|
if(ps_seq->u1_pic_order_cnt_type == 0)
|
|
{
|
|
u8_temp = (UWORD64) 4 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > MAX_BITS_IN_POC_LSB)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_seq->u1_log2_max_pic_order_cnt_lsb_minus = (UWORD8) u8_temp;
|
|
ps_seq->i4_max_pic_order_cntLsb = (1 << u8_temp);
|
|
COPYTHECONTEXT("SPS: log2_max_pic_order_cnt_lsb_minus4", (u8_temp - 4));
|
|
}
|
|
else if(ps_seq->u1_pic_order_cnt_type == 1)
|
|
{
|
|
ps_seq->u1_delta_pic_order_always_zero_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: delta_pic_order_always_zero_flag",
|
|
ps_seq->u1_delta_pic_order_always_zero_flag);
|
|
|
|
ps_seq->i4_ofst_for_non_ref_pic = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_non_ref_pic", ps_seq->i4_ofst_for_non_ref_pic);
|
|
|
|
ps_seq->i4_ofst_for_top_to_bottom_field = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_top_to_bottom_field",
|
|
ps_seq->i4_ofst_for_top_to_bottom_field);
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp > 255) return ERROR_INV_SPS_PPS_T;
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle = u4_temp;
|
|
COPYTHECONTEXT("SPS: num_ref_frames_in_pic_order_cnt_cycle",
|
|
ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle);
|
|
|
|
for(i = 0; i < ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle; i++)
|
|
{
|
|
ps_seq->i4_ofst_for_ref_frame[i] = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: offset_for_ref_frame", ps_seq->i4_ofst_for_ref_frame[i]);
|
|
}
|
|
}
|
|
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if((u4_temp > H264_MAX_REF_PICS))
|
|
{
|
|
return ERROR_NUM_REF;
|
|
}
|
|
|
|
/* Compare with older num_ref_frames is header is already once */
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_num_ref_frames != u4_temp))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
ps_seq->u1_num_ref_frames = u4_temp;
|
|
COPYTHECONTEXT("SPS: num_ref_frames", ps_seq->u1_num_ref_frames);
|
|
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: gaps_in_frame_num_value_allowed_flag",
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag);
|
|
|
|
ps_seq->u1_gaps_in_frame_num_value_allowed_flag = 0;
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode FrameWidth and FrameHeight and related values */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
/* Check for unsupported resolutions*/
|
|
if(u8_temp > (H264_MAX_FRAME_WIDTH >> 4))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
u4_pic_width_in_mbs = (UWORD32) u8_temp;
|
|
COPYTHECONTEXT("SPS: pic_width_in_mbs_minus1", u4_pic_width_in_mbs - 1);
|
|
|
|
u8_temp = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp > (H264_MAX_FRAME_HEIGHT >> 4))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
u4_pic_height_in_map_units = (UWORD32) u8_temp;
|
|
|
|
ps_seq->u2_frm_wd_in_mbs = u4_pic_width_in_mbs;
|
|
ps_seq->u2_frm_ht_in_mbs = u4_pic_height_in_map_units;
|
|
u2_pic_wd = (u4_pic_width_in_mbs << 4);
|
|
u2_pic_ht = (u4_pic_height_in_map_units << 4);
|
|
/*--------------------------------------------------------------------*/
|
|
/* Get the value of MaxMbAddress and Number of bits needed for it */
|
|
/*--------------------------------------------------------------------*/
|
|
ps_seq->u2_max_mb_addr = (ps_seq->u2_frm_wd_in_mbs * ps_seq->u2_frm_ht_in_mbs) - 1;
|
|
ps_seq->u2_total_num_of_mbs = ps_seq->u2_max_mb_addr + 1;
|
|
ps_seq->u1_level_idc = ih264d_correct_level_idc(u1_level_idc, ps_seq->u2_total_num_of_mbs);
|
|
|
|
u1_frm = ih264d_get_bit_h264(ps_bitstrm);
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_frame_mbs_only_flag != u1_frm))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
ps_seq->u1_frame_mbs_only_flag = u1_frm;
|
|
COPYTHECONTEXT("SPS: frame_mbs_only_flag", u1_frm);
|
|
|
|
if(!u1_frm) u1_mb_aff_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_dec->ps_sps[u1_seq_parameter_set_id].u1_mb_aff_flag != u1_mb_aff_flag))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if(!u1_frm)
|
|
{
|
|
u2_pic_ht <<= 1;
|
|
ps_seq->u1_mb_aff_flag = u1_mb_aff_flag;
|
|
COPYTHECONTEXT("SPS: mb_adaptive_frame_field_flag", ps_seq->u1_mb_aff_flag);
|
|
}
|
|
else
|
|
ps_seq->u1_mb_aff_flag = 0;
|
|
|
|
ps_seq->u1_direct_8x8_inference_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: direct_8x8_inference_flag", ps_seq->u1_direct_8x8_inference_flag);
|
|
|
|
/* G050 */
|
|
u1_frame_cropping_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: frame_cropping_flag", u1_frame_cropping_flag);
|
|
|
|
if(u1_frame_cropping_flag)
|
|
{
|
|
u1_frame_cropping_rect_left_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_left_offset", u1_frame_cropping_rect_left_ofst);
|
|
u1_frame_cropping_rect_right_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_right_offset", u1_frame_cropping_rect_right_ofst);
|
|
u1_frame_cropping_rect_top_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_top_offset", u1_frame_cropping_rect_top_ofst);
|
|
u1_frame_cropping_rect_bottom_ofst = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
COPYTHECONTEXT("SPS: frame_cropping_rect_bottom_offset",
|
|
u1_frame_cropping_rect_bottom_ofst);
|
|
}
|
|
/* G050 */
|
|
ps_seq->u1_vui_parameters_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("SPS: vui_parameters_present_flag", ps_seq->u1_vui_parameters_present_flag);
|
|
|
|
u2_frm_wd_y = u2_pic_wd + (UWORD8) (PAD_LEN_Y_H << 1);
|
|
|
|
if(1 == ps_dec->u4_share_disp_buf)
|
|
{
|
|
if(ps_dec->u4_app_disp_width > u2_frm_wd_y) u2_frm_wd_y = ps_dec->u4_app_disp_width;
|
|
}
|
|
|
|
u2_frm_ht_y = u2_pic_ht + (UWORD8) (PAD_LEN_Y_V << 2);
|
|
u2_frm_wd_uv = u2_pic_wd + (UWORD8) (PAD_LEN_UV_H << 2);
|
|
u2_frm_wd_uv = MAX(u2_frm_wd_uv, u2_frm_wd_y);
|
|
u2_frm_ht_uv = (u2_pic_ht >> 1) + (UWORD8) (PAD_LEN_UV_V << 2);
|
|
u2_frm_ht_uv = MAX(u2_frm_ht_uv, (u2_frm_ht_y >> 1));
|
|
|
|
/* Calculate display picture width, height and start u4_ofst from YUV420 */
|
|
/* pictute buffers as per cropping information parsed above */
|
|
{
|
|
UWORD16 u2_rgt_ofst = 0;
|
|
UWORD16 u2_lft_ofst = 0;
|
|
UWORD16 u2_top_ofst = 0;
|
|
UWORD16 u2_btm_ofst = 0;
|
|
UWORD8 u1_frm_mbs_flag;
|
|
UWORD8 u1_vert_mult_factor;
|
|
|
|
if(u1_frame_cropping_flag)
|
|
{
|
|
/* Calculate right and left u4_ofst for cropped picture */
|
|
u2_rgt_ofst = u1_frame_cropping_rect_right_ofst << 1;
|
|
u2_lft_ofst = u1_frame_cropping_rect_left_ofst << 1;
|
|
|
|
/* Know frame MBs only u4_flag */
|
|
u1_frm_mbs_flag = (1 == ps_seq->u1_frame_mbs_only_flag);
|
|
|
|
/* Simplify the vertical u4_ofst calculation from field/frame */
|
|
u1_vert_mult_factor = (2 - u1_frm_mbs_flag);
|
|
|
|
/* Calculate bottom and top u4_ofst for cropped picture */
|
|
u2_btm_ofst = (u1_frame_cropping_rect_bottom_ofst << u1_vert_mult_factor);
|
|
u2_top_ofst = (u1_frame_cropping_rect_top_ofst << u1_vert_mult_factor);
|
|
}
|
|
|
|
/* Calculate u4_ofst from start of YUV 420 picture buffer to start of*/
|
|
/* cropped picture buffer */
|
|
u2_crop_offset_y = (u2_frm_wd_y * u2_top_ofst) + (u2_lft_ofst);
|
|
u2_crop_offset_uv =
|
|
(u2_frm_wd_uv * (u2_top_ofst >> 1)) + (u2_lft_ofst >> 1) * YUV420SP_FACTOR;
|
|
/* Calculate the display picture width and height based on crop */
|
|
/* information */
|
|
i4_cropped_ht = (WORD32) u2_pic_ht - (WORD32) (u2_btm_ofst + u2_top_ofst);
|
|
i4_cropped_wd = (WORD32) u2_pic_wd - (WORD32) (u2_rgt_ofst + u2_lft_ofst);
|
|
|
|
if((i4_cropped_ht < MB_SIZE) || (i4_cropped_wd < MB_SIZE))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_pic_wd != u2_pic_wd))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_disp_width != i4_cropped_wd))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_pic_ht != u2_pic_ht))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) &&
|
|
(ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id].u2_disp_height != i4_cropped_ht))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
/* Check again for unsupported resolutions with updated values*/
|
|
if((u2_pic_wd > SVCD_MAX_FRAME_WIDTH) || (u2_pic_ht > SVCD_MAX_FRAME_HEIGHT) ||
|
|
(u2_pic_wd < SVCD_MIN_FRAME_WIDTH) || (u2_pic_ht < SVCD_MIN_FRAME_HEIGHT) ||
|
|
(u2_pic_wd * (UWORD32) u2_pic_ht > SVCD_MAX_FRAME_SIZE))
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
|
|
/* If MBAff is enabled, decoder support is limited to streams with
|
|
* width less than half of H264_MAX_FRAME_WIDTH.
|
|
* In case of MBAff decoder processes two rows at a time
|
|
*/
|
|
if((u2_pic_wd << ps_seq->u1_mb_aff_flag) > H264_MAX_FRAME_WIDTH)
|
|
{
|
|
return IVD_STREAM_WIDTH_HEIGHT_NOT_SUPPORTED;
|
|
}
|
|
}
|
|
|
|
/* Backup num_reorder_frames if header is already decoded */
|
|
if((ps_dec->i4_header_decoded & 1) && (1 == ps_seq->u1_vui_parameters_present_flag) &&
|
|
(1 == ps_seq->s_vui.u1_bitstream_restriction_flag))
|
|
{
|
|
num_reorder_frames = (WORD32) ps_seq->s_vui.u4_num_reorder_frames;
|
|
}
|
|
else
|
|
{
|
|
num_reorder_frames = -1;
|
|
}
|
|
if(1 == ps_seq->u1_vui_parameters_present_flag)
|
|
{
|
|
ret = ih264d_parse_vui_parametres(&ps_seq->s_vui, ps_bitstrm);
|
|
if(ret != OK) return ret;
|
|
}
|
|
|
|
/* Compare older num_reorder_frames with the new one if header is already
|
|
* decoded */
|
|
if((ps_dec->i4_header_decoded & 1) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_is_valid) && (-1 != num_reorder_frames) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].u1_vui_parameters_present_flag) &&
|
|
(1 == ps_dec->ps_sps[u1_seq_parameter_set_id].s_vui.u1_bitstream_restriction_flag) &&
|
|
((WORD32) ps_dec->ps_sps[u1_seq_parameter_set_id].s_vui.u4_num_reorder_frames !=
|
|
num_reorder_frames))
|
|
{
|
|
ps_dec->u1_res_changed = 1;
|
|
return IVD_RES_CHANGED;
|
|
}
|
|
|
|
/* In case bitstream read has exceeded the filled size, then return an error */
|
|
if(EXCEED_OFFSET(ps_bitstrm))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* All initializations to ps_dec are beyond this point */
|
|
/*--------------------------------------------------------------------*/
|
|
{
|
|
WORD32 reorder_depth = ih264d_get_dpb_size(ps_seq);
|
|
if((1 == ps_seq->u1_vui_parameters_present_flag) &&
|
|
(1 == ps_seq->s_vui.u1_bitstream_restriction_flag))
|
|
{
|
|
reorder_depth = ps_seq->s_vui.u4_num_reorder_frames + 1;
|
|
}
|
|
|
|
if(reorder_depth > H264_MAX_REF_PICS)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
|
|
if(ps_seq->u1_frame_mbs_only_flag != 1) reorder_depth *= 2;
|
|
ps_subset_seq->i4_reorder_depth = reorder_depth + DISPLAY_LATENCY;
|
|
}
|
|
ps_subset_seq->u2_disp_height = i4_cropped_ht;
|
|
ps_subset_seq->u2_disp_width = i4_cropped_wd;
|
|
ps_subset_seq->u2_pic_wd = u2_pic_wd;
|
|
ps_subset_seq->u2_pic_ht = u2_pic_ht;
|
|
|
|
/* Determining the Width and Height of Frame from that of Picture */
|
|
ps_subset_seq->u2_frm_wd_y = u2_frm_wd_y;
|
|
ps_subset_seq->u2_frm_ht_y = u2_frm_ht_y;
|
|
ps_subset_seq->u2_frm_wd_uv = u2_frm_wd_uv;
|
|
ps_subset_seq->u2_frm_ht_uv = u2_frm_ht_uv;
|
|
|
|
ps_subset_seq->u1_pad_len_y_v = (UWORD8) (PAD_LEN_Y_V << (1 - u1_frm));
|
|
ps_subset_seq->u1_pad_len_cr_v = (UWORD8) (PAD_LEN_UV_V << (1 - u1_frm));
|
|
|
|
ps_subset_seq->u2_crop_offset_y = u2_crop_offset_y;
|
|
ps_subset_seq->u2_crop_offset_uv = u2_crop_offset_uv;
|
|
|
|
if(((ps_dec->u2_pic_wd * ps_dec->u2_pic_ht) <
|
|
(ps_subset_seq->u2_pic_wd * ps_subset_seq->u2_pic_ht)) ||
|
|
(ps_dec->i4_reorder_depth < ps_subset_seq->i4_reorder_depth))
|
|
{
|
|
ps_dec->i4_reorder_depth = ps_subset_seq->i4_reorder_depth;
|
|
|
|
ps_dec->u2_disp_height = ps_subset_seq->u2_disp_height;
|
|
ps_dec->u2_disp_width = ps_subset_seq->u2_disp_width;
|
|
ps_dec->u2_pic_wd = ps_subset_seq->u2_pic_wd;
|
|
ps_dec->u2_pic_ht = ps_subset_seq->u2_pic_ht;
|
|
ps_dec->u4_total_mbs = ps_seq->u2_total_num_of_mbs << (1 - ps_seq->u1_frame_mbs_only_flag);
|
|
|
|
/* Determining the Width and Height of Frame from that of Picture */
|
|
ps_dec->u2_frm_wd_y = ps_subset_seq->u2_frm_wd_y;
|
|
ps_dec->u2_frm_ht_y = ps_subset_seq->u2_frm_ht_y;
|
|
ps_dec->u2_frm_wd_uv = ps_subset_seq->u2_frm_wd_uv;
|
|
ps_dec->u2_frm_ht_uv = ps_subset_seq->u2_frm_ht_uv;
|
|
|
|
ps_dec->s_pad_mgr.u1_pad_len_y_v = ps_subset_seq->u1_pad_len_y_v;
|
|
ps_dec->s_pad_mgr.u1_pad_len_cr_v = ps_subset_seq->u1_pad_len_cr_v;
|
|
|
|
ps_dec->u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs;
|
|
ps_dec->u2_frm_ht_in_mbs = ps_seq->u2_frm_ht_in_mbs;
|
|
ps_dec->u2_crop_offset_y = ps_subset_seq->u2_crop_offset_y;
|
|
ps_dec->u2_crop_offset_uv = ps_subset_seq->u2_crop_offset_uv;
|
|
}
|
|
|
|
ps_seq->u1_is_valid = TRUE;
|
|
ps_dec->ps_sps[u1_seq_parameter_set_id] = *ps_seq;
|
|
ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id] = *ps_subset_seq;
|
|
ps_dec->ps_cur_sps = &ps_dec->ps_sps[u1_seq_parameter_set_id];
|
|
ps_svc_lyr_dec->ps_cur_subset_sps = &ps_svc_lyr_dec->ps_subset_sps[u1_seq_parameter_set_id];
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*!
|
|
**************************************************************************
|
|
* \if Function name : isvcd_parse_pps \endif
|
|
*
|
|
* \brief
|
|
* Decodes Picture Parameter set
|
|
*
|
|
* \return
|
|
* 0 on Success and Error code otherwise
|
|
**************************************************************************
|
|
*/
|
|
WORD32 isvcd_parse_pps(svc_dec_lyr_struct_t *ps_svc_lyr_dec, dec_bit_stream_t *ps_bitstrm)
|
|
{
|
|
dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec;
|
|
UWORD8 uc_temp;
|
|
dec_seq_params_t *ps_sps = NULL;
|
|
dec_pic_params_t *ps_pps = NULL;
|
|
UWORD32 *pu4_bitstrm_buf = ps_dec->ps_bitstrm->pu4_buffer;
|
|
UWORD32 *pu4_bitstrm_ofst = &ps_dec->ps_bitstrm->u4_ofst;
|
|
|
|
/* Variables used for error resilience checks */
|
|
UWORD64 u8_temp;
|
|
UWORD32 u4_temp;
|
|
WORD32 i_temp;
|
|
|
|
/* For High profile related syntax elements */
|
|
UWORD8 u1_more_data_flag;
|
|
WORD32 i4_i;
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode pic_parameter_set_id and find corresponding pic params */
|
|
/*--------------------------------------------------------------------*/
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp & MASK_ERR_PIC_SET_ID) return ERROR_INV_SPS_PPS_T;
|
|
ps_pps = ps_dec->pv_scratch_sps_pps;
|
|
*ps_pps = ps_dec->ps_pps[u4_temp];
|
|
ps_pps->u1_pic_parameter_set_id = (UWORD8) u4_temp;
|
|
COPYTHECONTEXT("PPS: pic_parameter_set_id", ps_pps->u1_pic_parameter_set_id);
|
|
|
|
/************************************************/
|
|
/* initilization of High profile syntax element */
|
|
/************************************************/
|
|
ps_pps->i4_transform_8x8_mode_flag = 0;
|
|
ps_pps->i4_pic_scaling_matrix_present_flag = 0;
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode seq_parameter_set_id and map it to a seq_parameter_set */
|
|
/*--------------------------------------------------------------------*/
|
|
u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u4_temp & MASK_ERR_SEQ_SET_ID) return ERROR_INV_SPS_PPS_T;
|
|
COPYTHECONTEXT("PPS: seq_parameter_set_id", u4_temp);
|
|
ps_sps = &ps_dec->ps_sps[u4_temp];
|
|
ps_pps->ps_sps = ps_sps;
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode entropy_coding_mode */
|
|
/*--------------------------------------------------------------------*/
|
|
ps_pps->u1_entropy_coding_mode = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("PPS: entropy_coding_mode_flag", ps_pps->u1_entropy_coding_mode);
|
|
|
|
ps_pps->u1_pic_order_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("PPS: pic_order_present_flag", ps_pps->u1_pic_order_present_flag);
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Decode num_slice_groups_minus1 */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf) + (UWORD64) 1;
|
|
if(u8_temp != 1)
|
|
{
|
|
return ERROR_FEATURE_UNAVAIL;
|
|
}
|
|
ps_pps->u1_num_slice_groups = (UWORD8) u8_temp;
|
|
COPYTHECONTEXT("PPS: num_slice_groups_minus1", ps_pps->u1_num_slice_groups - 1);
|
|
|
|
/*--------------------------------------------------------------------*/
|
|
/* Other parameter set values */
|
|
/*--------------------------------------------------------------------*/
|
|
u8_temp = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp >= H264_MAX_REF_IDX) return ERROR_REF_IDX;
|
|
ps_pps->u1_num_ref_idx_lx_active[0] = (UWORD8) u8_temp;
|
|
COPYTHECONTEXT("PPS: num_ref_idx_l0_active_minus1", ps_pps->u1_num_ref_idx_lx_active[0] - 1);
|
|
|
|
u8_temp = (UWORD64) 1 + ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if(u8_temp >= H264_MAX_REF_IDX) return ERROR_REF_IDX;
|
|
ps_pps->u1_num_ref_idx_lx_active[1] = (UWORD8) u8_temp;
|
|
COPYTHECONTEXT("PPS: num_ref_idx_l1_active_minus1", ps_pps->u1_num_ref_idx_lx_active[1] - 1);
|
|
|
|
ps_pps->u1_wted_pred_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("PPS: weighted prediction u4_flag", ps_pps->u1_wted_pred_flag);
|
|
uc_temp = (UWORD8) ih264d_get_bits_h264(ps_bitstrm, 2);
|
|
COPYTHECONTEXT("PPS: weighted_bipred_idc", uc_temp);
|
|
ps_pps->u1_wted_bipred_idc = uc_temp;
|
|
|
|
if(ps_pps->u1_wted_bipred_idc > MAX_WEIGHT_BIPRED_IDC) return ERROR_INV_SPS_PPS_T;
|
|
|
|
{
|
|
WORD64 i8_temp = (WORD64) 26 + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
|
|
if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP)) return ERROR_INV_RANGE_QP_T;
|
|
|
|
ps_pps->u1_pic_init_qp = (UWORD8) i8_temp;
|
|
COPYTHECONTEXT("PPS: pic_init_qp_minus26", ps_pps->u1_pic_init_qp - 26);
|
|
|
|
i8_temp = (WORD64) 26 + ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if((i8_temp < MIN_H264_QP) || (i8_temp > MAX_H264_QP)) return ERROR_INV_RANGE_QP_T;
|
|
|
|
ps_pps->u1_pic_init_qs = (UWORD8) i8_temp;
|
|
COPYTHECONTEXT("PPS: pic_init_qs_minus26", ps_pps->u1_pic_init_qs - 26);
|
|
}
|
|
|
|
i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if((i_temp < -12) || (i_temp > 12)) return ERROR_INV_RANGE_QP_T;
|
|
ps_pps->i1_chroma_qp_index_offset = i_temp;
|
|
COPYTHECONTEXT("PPS: chroma_qp_index_offset", ps_pps->i1_chroma_qp_index_offset);
|
|
|
|
/***************************************************************************/
|
|
/* initialize second_chroma_qp_index_offset to i1_chroma_qp_index_offset if */
|
|
/* second_chroma_qp_index_offset is not present in bit-ps_bitstrm */
|
|
/***************************************************************************/
|
|
ps_pps->i1_second_chroma_qp_index_offset = ps_pps->i1_chroma_qp_index_offset;
|
|
|
|
ps_pps->u1_deblocking_filter_parameters_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("PPS: deblocking_filter_control_present_flag",
|
|
ps_pps->u1_deblocking_filter_parameters_present_flag);
|
|
ps_pps->u1_constrained_intra_pred_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("PPS: constrained_intra_pred_flag", ps_pps->u1_constrained_intra_pred_flag);
|
|
ps_pps->u1_redundant_pic_cnt_present_flag = ih264d_get_bit_h264(ps_bitstrm);
|
|
COPYTHECONTEXT("PPS: redundant_pic_cnt_present_flag",
|
|
ps_pps->u1_redundant_pic_cnt_present_flag);
|
|
|
|
/* High profile related syntax elements */
|
|
u1_more_data_flag = MORE_RBSP_DATA(ps_bitstrm);
|
|
|
|
if(u1_more_data_flag)
|
|
{
|
|
/* read transform_8x8_mode_flag */
|
|
ps_pps->i4_transform_8x8_mode_flag = (WORD32) ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
/* read pic_scaling_matrix_present_flag */
|
|
ps_pps->i4_pic_scaling_matrix_present_flag = (WORD32) ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_pps->i4_pic_scaling_matrix_present_flag)
|
|
{
|
|
/* read the scaling matrices */
|
|
for(i4_i = 0; i4_i < (6 + (ps_pps->i4_transform_8x8_mode_flag << 1)); i4_i++)
|
|
{
|
|
ps_pps->u1_pic_scaling_list_present_flag[i4_i] = ih264d_get_bit_h264(ps_bitstrm);
|
|
|
|
if(ps_pps->u1_pic_scaling_list_present_flag[i4_i])
|
|
{
|
|
WORD32 ret;
|
|
if(i4_i < 6)
|
|
{
|
|
ret = ih264d_scaling_list(
|
|
ps_pps->i2_pic_scalinglist4x4[i4_i], 16,
|
|
&ps_pps->u1_pic_use_default_scaling_matrix_flag[i4_i], ps_bitstrm);
|
|
}
|
|
else
|
|
{
|
|
ret = ih264d_scaling_list(
|
|
ps_pps->i2_pic_scalinglist8x8[i4_i - 6], 64,
|
|
&ps_pps->u1_pic_use_default_scaling_matrix_flag[i4_i], ps_bitstrm);
|
|
}
|
|
|
|
if(ret != OK)
|
|
{
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* read second_chroma_qp_index_offset syntax element */
|
|
i_temp = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf);
|
|
if((i_temp < -12) || (i_temp > 12)) return ERROR_INV_RANGE_QP_T;
|
|
|
|
ps_pps->i1_second_chroma_qp_index_offset = i_temp;
|
|
}
|
|
|
|
if(SCALABLE_BASELINE_PROFILE_IDC == ps_sps->u1_profile_idc)
|
|
|
|
{
|
|
if(ps_pps->u1_num_slice_groups > 7)
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
}
|
|
|
|
/* In case bitstream read has exceeded the filled size, then return an error */
|
|
if(EXCEED_OFFSET(ps_bitstrm))
|
|
{
|
|
return ERROR_INV_SPS_PPS_T;
|
|
}
|
|
ps_pps->u1_is_valid = TRUE;
|
|
ps_dec->ps_pps[ps_pps->u1_pic_parameter_set_id] = *ps_pps;
|
|
return OK;
|
|
}
|