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67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
/*
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* DVD-Audio Decoder plugin
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* Copyright (c) 2009-2025 Maxim V.Anisiutkin <maxim.anisiutkin@gmail.com>
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*
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* DVD-Audio Decoder is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* DVD-Audio Decoder is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#pragma once
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#include "audio_stream_info.h"
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#include "dvda_error.h"
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#include <cstdint>
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constexpr int DVD_BLOCK_SIZE = 2048;
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constexpr int SEGMENT_HEADER_BLOCKS = 16;
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constexpr int SEGMENT_HEADER_SIZE = SEGMENT_HEADER_BLOCKS * DVD_BLOCK_SIZE;
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typedef struct {
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struct {
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uint8_t stream_id;
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uint8_t cyclic;
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uint8_t padding1;
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uint8_t extra_header_length;
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} header;
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union {
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struct {
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uint16_t first_audio_frame;
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uint8_t padding1;
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uint8_t group2_bits : 4;
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uint8_t group1_bits : 4;
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uint8_t group2_samplerate : 4;
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uint8_t group1_samplerate : 4;
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uint8_t padding2;
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uint8_t channel_arrangement;
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uint8_t padding3;
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uint8_t cci;
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} pcm;
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struct {
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uint8_t padding1;
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uint8_t padding2;
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uint8_t padding3;
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uint8_t padding4;
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uint8_t cci;
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} mlp;
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} extra_header;
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uint8_t padding[256];
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} sub_header_t;
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class dvda_block_t {
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static int get_ps1_info_length(uint8_t* p_substream_buffer, int substream_length);
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public:
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static void get_ps1(uint8_t* p_block, uint8_t* p_ps1_buffer, int* p_ps1_offset, sub_header_t* p_ps1_info);
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static void get_ps1(uint8_t* p_block, int blocks, uint8_t* p_ps1_buffer, int* p_ps1_offset, sub_header_t* p_ps1_info);
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};
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