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Diffstat (limited to 'src/iso11172-1.h')
| -rw-r--r-- | src/iso11172-1.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/src/iso11172-1.h b/src/iso11172-1.h deleted file mode 100644 index ee8f408..0000000 --- a/src/iso11172-1.h +++ /dev/null @@ -1,161 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * iso11172-1.h - * - * Wed Aug 31 13:48:30 CEST 2005 - * Copyright 2005 Bent Bisballe Nyeng - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of MIaV. - * - * MIaV is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * MIaV 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with MIaV; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ - -/* - * This file contains symbols used to create an ISO11172-1 compatible multiplexed - * MPEG stream. - */ - -#include "config.h" -#ifndef __MIAV_ISO11172_1_H__ -#define __MIAV_ISO11172_1_H__ - -#define CLOCK_90KHZ 90000 - -namespace ISO11172_1 { - //////////////////////////////////////////////////// - // Types - //////////////////////////////////////////////////// - // 64 bits (8 bytes) - typedef struct { - unsigned long long int marker_bit3:1; - unsigned long long int system_clock_reference3:15; - unsigned long long int marker_bit2:1; - unsigned long long int system_clock_reference2:15; - unsigned long long int marker_bit1:1; - unsigned long long int system_clock_reference1:3; - unsigned long long int padding:4; - unsigned long long int stuffing_byte:8; - unsigned long long int packet_length:16; - } packet_header; - - typedef struct { - unsigned long long int marker_bit5:1; - unsigned long long int mux_rate:22; - unsigned long long int marker_bit4:1; - unsigned long long int marker_bit3:1; - unsigned long long int system_clock_reference3:15; - unsigned long long int marker_bit2:1; - unsigned long long int system_clock_reference2:15; - unsigned long long int marker_bit1:1; - unsigned long long int system_clock_reference1:3; - unsigned long long int padding:4; - } pack_header; - - typedef struct { - unsigned long long int reserved_byte:8; - unsigned long long int video_bound:5; - unsigned long long int marker_bit3:1; - unsigned long long int system_video_clock_flag:1; - unsigned long long int system_audio_clock_flag:1; - unsigned long long int CSPS_flag:1; - unsigned long long int fixed_flag:1; - unsigned long long int audio_bound:6; - unsigned long long int marker_bit2:1; - unsigned long long int rate_bound:22; - unsigned long long int marker_bit1:1; - unsigned long long int header_length:16; - } system_header; - - typedef struct { - unsigned long int STD_buffer_size_bound:13; - unsigned long int STD_buffer_bound_scale:1; - unsigned long int market_bits:2; - unsigned long int stream_id:8; - } stream_description; - - //////////////////////////////////////////////////// - // Constants - //////////////////////////////////////////////////// - const char pack_start_code[] = "\x00\x00\x01\xBA"; - const char system_header_start_code[] = "\x00\x00\x01\xBB"; - const char packet_start_code_prefix[] = "\x00\x00\x01"; - const char stream_id_video1[] = "\xE3"; - const char stream_id_video2[] = "\xE4"; - const char stream_id_video3[] = "\xE5"; - const char stream_id_video4[] = "\xE6"; - const char stream_id_video5[] = "\xE7"; - const char stream_id_video6[] = "\xE8"; - const char stream_id_video7[] = "\xE9"; - const char stream_id_video8[] = "\xEA"; - const char stream_id_audio1[] = "\xC0"; - const char stream_id_audio2[] = "\xC1"; - const char stream_id_audio3[] = "\xC2"; - const char stream_id_audio4[] = "\xC3"; - const char stream_id_audio5[] = "\xC4"; - const char stream_id_audio6[] = "\xC5"; - const char stream_id_audio7[] = "\xC6"; - const char stream_id_audio8[] = "\xC7"; - const char stream_id_padding[] = "\xBE"; - const char end_code[] = "\x00\x00\x01\xB9"; - - //////////////////////////////////////////////////// - // Methods - //////////////////////////////////////////////////// - /** - * SCR stands for System Clock Reference - */ - inline unsigned int SCR(unsigned int previous_SCR, - unsigned int pack_header_size, - unsigned int packets_per_pack, - unsigned int packet_data_size, - unsigned int Rmux) - { - // To prevent a crash when doing division. - if(Rmux == 0) Rmux = 1; - return previous_SCR + (unsigned int)((double)(pack_header_size + - (packets_per_pack * packet_data_size)) * - (double)CLOCK_90KHZ / (double)Rmux); - } - - /** - * Calculates Rmux according to subclause A.5.4 - * mux stands for multiplexing and R for Rate, - * so Rmux is the rate of the multiplexing. - */ - inline unsigned int Rmux(unsigned int video_data_rate, - unsigned int audio_data_rate, - unsigned int packet_header_size, - unsigned int pack_header_size, - unsigned int packets_per_pack, - unsigned int packet_data_size) - { - // To prevent a crash when doing division. - if(packets_per_pack == 0) packets_per_pack = 1; - if(packet_data_size == 0) packet_data_size = 1; - - return (unsigned int)( - ((double)video_data_rate + (double)audio_data_rate) * - (1.0 + ((double)packet_header_size + (double)pack_header_size / (double)packets_per_pack) - / (double)packet_data_size) - ); - } - - -}; - -#endif/*__MIAV_ISO11172_1_H__*/ |