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683 lines
17 KiB
683 lines
17 KiB
/*****************************************************************************
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* 104.h: SCTE 104 Automation to Compression Communications API
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*****************************************************************************
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* Copyright (C) 2016 OpenHeadend
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*
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* Authors: Christophe Massiot <cmassiot@openheadend.tv>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject
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* to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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/*
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* Normative references:
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* - SCTE 104 2012 (Automation to Compression Communications API)
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*/
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#ifndef __BITSTREAM_SCTE_104_H__
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#define __BITSTREAM_SCTE_104_H__
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#include <bitstream/common.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/*****************************************************************************
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* SCTE 104 - timestamp structure
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*****************************************************************************/
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#define SCTE104T_HEADER_SIZE 1
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#define SCTE104T_TYPE_NONE 0
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#define SCTE104T_TYPE_UTC 1
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#define SCTE104T_TYPE_VITC 2
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#define SCTE104T_TYPE_GPI 3
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static inline uint8_t scte104t_get_type(const uint8_t *p)
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{
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return p[0];
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}
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static inline void scte104t_set_type(uint8_t *p, uint8_t i_type)
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{
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p[0] = i_type;
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}
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static inline uint8_t scte104t_get_size(const uint8_t *p)
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{
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switch (scte104t_get_type(p)) {
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case SCTE104T_TYPE_NONE:
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default:
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return 1;
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case SCTE104T_TYPE_UTC:
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return 7;
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case SCTE104T_TYPE_VITC:
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return 5;
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case SCTE104T_TYPE_GPI:
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return 3;
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}
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}
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static inline uint32_t scte104t_get_utc_seconds(const uint8_t *p)
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{
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return ((uint32_t)p[1] << 24) |
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((uint32_t)p[2] << 16) |
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((uint32_t)p[3] << 8) |
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(uint32_t)p[4];
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}
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static inline void scte104t_set_utc_seconds(uint8_t *p, uint32_t i_seconds)
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{
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p[1] = (i_seconds >> 24) & 0xff;
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p[2] = (i_seconds >> 16) & 0xff;
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p[3] = (i_seconds >> 8) & 0xff;
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p[4] = (i_seconds >> 0) & 0xff;
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}
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static inline uint16_t scte104t_get_utc_microseconds(const uint8_t *p)
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{
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return ((uint16_t)p[5] << 8) |
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(uint16_t)p[6];
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}
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static inline void scte104t_set_utc_microseconds(uint8_t *p, uint16_t i_microseconds)
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{
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p[5] = (i_microseconds >> 8) & 0xff;
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p[6] = (i_microseconds >> 0) & 0xff;
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}
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static inline uint8_t scte104t_get_hours(const uint8_t *p)
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{
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return p[1];
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}
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static inline void scte104t_set_hours(uint8_t *p, uint8_t i_hours)
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{
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p[1] = i_hours;
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}
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static inline uint8_t scte104t_get_minutes(const uint8_t *p)
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{
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return p[2];
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}
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static inline void scte104t_set_minutes(uint8_t *p, uint8_t i_minutes)
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{
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p[2] = i_minutes;
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}
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static inline uint8_t scte104t_get_seconds(const uint8_t *p)
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{
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return p[3];
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}
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static inline void scte104t_set_seconds(uint8_t *p, uint8_t i_seconds)
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{
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p[3] = i_seconds;
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}
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static inline uint8_t scte104t_get_frames(const uint8_t *p)
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{
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return p[4];
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}
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static inline void scte104t_set_frames(uint8_t *p, uint8_t i_frames)
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{
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p[4] = i_frames;
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}
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static inline uint8_t scte104t_get_gpi_number(const uint8_t *p)
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{
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return p[1];
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}
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static inline void scte104t_set_gpi_number(uint8_t *p, uint8_t i_gpi_number)
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{
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p[1] = i_gpi_number;
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}
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static inline uint8_t scte104t_get_gpi_edge(const uint8_t *p)
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{
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return p[2];
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}
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static inline void scte104t_set_gpi_edge(uint8_t *p, uint8_t i_gpi_edge)
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{
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p[2] = i_gpi_edge;
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}
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/*****************************************************************************
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* Single and multiple operation message
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*****************************************************************************/
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#define SCTE104_HEADER_SIZE 4
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#define SCTE104_OPID_INJECT_SECTION 0x0100
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#define SCTE104_OPID_SPLICE 0x0101
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#define SCTE104_OPID_SPLICE_NULL 0x0102
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#define SCTE104_OPID_TIME_SIGNAL 0x0104
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#define SCTE104_OPID_INSERT_DESCRIPTOR 0x0108
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#define SCTE104_OPID_INSERT_SEGMENTATION_DESCRIPTOR 0x010B
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#define SCTE104_OPID_MULTIPLE 0xffff
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static inline uint16_t scte104_get_opid(const uint8_t *p)
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{
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return (p[0] << 8) | p[1];
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}
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static inline void scte104_set_opid(uint8_t *p, uint16_t i_opid)
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{
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p[0] = (i_opid >> 8) & 0xff;
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p[1] = (i_opid >> 0) & 0xff;
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}
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static inline uint16_t scte104_get_size(const uint8_t *p)
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{
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return (p[2] << 8) | p[3];
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}
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static inline void scte104_set_size(uint8_t *p, uint16_t i_size)
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{
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p[2] = (i_size >> 8) & 0xff;
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p[3] = (i_size >> 0) & 0xff;
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}
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/*****************************************************************************
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* Single operation message
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*****************************************************************************/
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#define SCTE104S_HEADER_SIZE 13
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static inline uint16_t scte104s_get_result(const uint8_t *p)
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{
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return (p[4] << 8) | p[5];
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}
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static inline void scte104s_set_result(uint8_t *p, uint16_t i_result)
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{
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p[4] = (i_result >> 8) & 0xff;
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p[5] = (i_result >> 0) & 0xff;
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}
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static inline uint16_t scte104s_get_result_extension(const uint8_t *p)
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{
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return (p[6] << 8) | p[7];
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}
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static inline void scte104s_set_result_extension(uint8_t *p, uint16_t i_result_ext)
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{
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p[6] = (i_result_ext >> 8) & 0xff;
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p[7] = (i_result_ext >> 0) & 0xff;
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}
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static inline uint8_t scte104s_get_protocol(const uint8_t *p)
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{
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return p[8];
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}
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static inline void scte104s_set_protocol(uint8_t *p, uint8_t i_protocol)
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{
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p[8] = i_protocol;
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}
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static inline uint8_t scte104s_get_as_index(const uint8_t *p)
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{
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return p[9];
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}
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static inline void scte104s_set_as_index(uint8_t *p, uint8_t i_as_index)
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{
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p[9] = i_as_index;
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}
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static inline uint8_t scte104s_get_message_number(const uint8_t *p)
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{
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return p[10];
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}
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static inline void scte104s_set_message_num(uint8_t *p, uint8_t i_message_num)
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{
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p[10] = i_message_num;
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}
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static inline uint16_t scte104s_get_dpi_pid_index(const uint8_t *p)
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{
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return (p[11] << 8) | p[12];
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}
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static inline void scte104s_set_dpi_pid_index(uint8_t *p, uint16_t i_dpi_pid_idx)
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{
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p[11] = (i_dpi_pid_idx >> 8) & 0xff;
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p[12] = (i_dpi_pid_idx >> 0) & 0xff;
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}
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static inline uint8_t *scte104s_get_data(const uint8_t *p, uint16_t *pi_size)
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{
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*pi_size = scte104_get_size(p) - SCTE104_HEADER_SIZE;
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return (uint8_t *)&p[13];
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}
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static inline bool scte104s_validate(const uint8_t *p, const int buf_size)
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{
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uint16_t i_size = scte104_get_size(p);
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if (buf_size < i_size)
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return false;
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if (i_size < SCTE104S_HEADER_SIZE)
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return false;
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return true;
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}
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/*****************************************************************************
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* Multiple operation message : operations
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*****************************************************************************/
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#define SCTE104O_HEADER_SIZE 4
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static inline uint16_t scte104o_get_opid(const uint8_t *p)
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{
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return (p[0] << 8) | p[1];
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}
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static inline void scte104o_set_opid(uint8_t *p, uint16_t i_opid)
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{
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p[0] = (i_opid >> 8) & 0xff;
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p[1] = (i_opid >> 0) & 0xff;
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}
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static inline uint16_t scte104o_get_data_length(const uint8_t *p)
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{
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return (p[2] << 8) | p[3];
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}
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static inline void scte104o_set_data_length(uint8_t *p, uint16_t i_data_len)
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{
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p[2] = (i_data_len >> 8) & 0xff;
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p[3] = (i_data_len >> 0) & 0xff;
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}
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static inline uint8_t *scte104o_get_data(const uint8_t *p)
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{
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return (uint8_t *)&p[4];
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}
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/*****************************************************************************
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* Multiple operation message
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*****************************************************************************/
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#define SCTE104M_HEADER_SIZE 10
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static inline uint8_t scte104m_get_protocol(const uint8_t *p)
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{
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return p[4];
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}
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static inline void scte104m_set_protocol(uint8_t *p, uint8_t i_protocol)
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{
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p[4] = i_protocol;
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}
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static inline uint8_t scte104m_get_as_index(const uint8_t *p)
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{
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return p[5];
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}
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static inline void scte104m_set_as_index(uint8_t *p, uint8_t i_as_idx)
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{
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p[5] = i_as_idx;
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}
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static inline uint8_t scte104m_get_message_number(const uint8_t *p)
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{
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return p[6];
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}
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static inline void scte104m_set_message_number(uint8_t *p, uint8_t i_message_num)
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{
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p[6] = i_message_num;
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}
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static inline uint16_t scte104m_get_dpi_pid_index(const uint8_t *p)
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{
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return (p[7] << 8) | p[8];
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}
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static inline void scte104m_set_dpi_pid_index(uint8_t *p, uint16_t i_dpi_pid_idx)
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{
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p[7] = (i_dpi_pid_idx >> 8) & 0xff;
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p[8] = (i_dpi_pid_idx >> 0) & 0xff;
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}
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static inline uint8_t scte104m_get_scte35_protocol(const uint8_t *p)
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{
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return p[9];
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}
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static inline void scte104m_set_scte35_protocol(uint8_t *p, uint8_t i_scte_protocol)
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{
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p[9] = i_scte_protocol;
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}
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static inline uint8_t *scte104m_get_timestamp(const uint8_t *p)
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{
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return (uint8_t *)&p[10];
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}
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static inline uint8_t scte104m_get_num_ops(const uint8_t *p)
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{
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p = scte104m_get_timestamp(p);
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return p[scte104t_get_size(p)];
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}
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static inline void scte104m_set_num_ops(uint8_t *p, uint8_t i_num_ops)
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{
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p = scte104m_get_timestamp(p);
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p[scte104t_get_size(p)] = i_num_ops;
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}
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static inline uint8_t *scte104m_get_op(const uint8_t *p, uint8_t i_op)
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{
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uint16_t i_size = scte104_get_size(p);
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const uint8_t *p_end = p + i_size;
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p = scte104m_get_timestamp(p);
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p += scte104t_get_size(p) + 1;
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while (i_op--) {
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if (p + SCTE104O_HEADER_SIZE > p_end ||
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p + scte104o_get_data_length(p) + SCTE104O_HEADER_SIZE > p_end)
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return NULL;
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p += scte104o_get_data_length(p) + SCTE104O_HEADER_SIZE;
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}
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return (uint8_t *)p;
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}
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static inline bool scte104m_validate(const uint8_t *p, const int buf_size)
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{
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uint16_t i_size = scte104_get_size(p);
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if (buf_size < i_size)
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return false;
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if (i_size < SCTE104M_HEADER_SIZE + SCTE104T_HEADER_SIZE)
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return false;
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const uint8_t *p_timestamp = scte104m_get_timestamp(p);
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if (i_size < SCTE104M_HEADER_SIZE + scte104t_get_size(p_timestamp) + 1)
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return false;
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uint8_t i_op = scte104m_get_num_ops(p);
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if (scte104m_get_op(p, i_op - 1) == NULL)
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return false;
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return true;
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}
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/*****************************************************************************
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* SCTE-104 : splice_request_data
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*****************************************************************************/
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#define SCTE104SRD_HEADER_SIZE 14
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#define SCTE104SRD_RESERVED 0
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#define SCTE104SRD_START_NORMAL 1
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#define SCTE104SRD_START_IMMEDIATE 2
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#define SCTE104SRD_END_NORMAL 3
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#define SCTE104SRD_END_IMMEDIATE 4
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#define SCTE104SRD_CANCEL 5
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static inline uint8_t scte104srd_get_insert_type(const uint8_t *p)
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{
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return p[0];
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}
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static inline void scte104srd_set_insert_type(uint8_t *p, uint8_t i_insert_type)
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{
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p[0] = i_insert_type;
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}
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static inline uint32_t scte104srd_get_event_id(const uint8_t *p)
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{
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return ((uint32_t)p[1] << 24) |
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((uint32_t)p[2] << 16) |
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((uint32_t)p[3] << 8) |
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(uint32_t)p[4];
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}
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static inline void scte104srd_set_event_id(uint8_t *p, uint32_t i_event_id)
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{
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p[1] = (i_event_id >> 24) & 0xff;
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p[2] = (i_event_id >> 16) & 0xff;
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p[3] = (i_event_id >> 8) & 0xff;
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p[4] = (i_event_id >> 0) & 0xff;
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}
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static inline uint16_t scte104srd_get_unique_program_id(const uint8_t *p)
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{
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return ((uint16_t)p[5] << 8) |
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(uint16_t)p[6];
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}
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static inline void scte104srd_set_unique_program_id(uint8_t *p, uint16_t i_unique_prog_id)
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{
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p[5] = (i_unique_prog_id >> 8) & 0xff;
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p[6] = (i_unique_prog_id >> 0) & 0xff;
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}
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static inline uint16_t scte104srd_get_pre_roll_time(const uint8_t *p)
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{
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return ((uint16_t)p[7] << 8) |
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(uint16_t)p[8];
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}
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static inline void scte104srd_set_pre_roll_time(uint8_t *p, uint16_t i_pre_roll_time)
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{
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p[7] = (i_pre_roll_time >> 8) & 0xff;
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p[8] = (i_pre_roll_time >> 0) & 0xff;
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}
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|
|
|
static inline uint16_t scte104srd_get_break_duration(const uint8_t *p)
|
|
{
|
|
return ((uint16_t)p[9] << 8) |
|
|
(uint16_t)p[10];
|
|
}
|
|
|
|
static inline void scte104srd_set_break_duration(uint8_t *p, uint16_t i_break_duration)
|
|
{
|
|
p[ 9] = (i_break_duration >> 8) & 0xff;
|
|
p[10] = (i_break_duration >> 0) & 0xff;
|
|
}
|
|
|
|
static inline uint8_t scte104srd_get_avail_num(const uint8_t *p)
|
|
{
|
|
return p[11];
|
|
}
|
|
|
|
static inline void scte104srd_set_avail_num(uint8_t *p, uint8_t i_avail_num)
|
|
{
|
|
p[11] = i_avail_num;
|
|
}
|
|
|
|
static inline uint8_t scte104srd_get_avails_expected(const uint8_t *p)
|
|
{
|
|
return p[12];
|
|
}
|
|
|
|
static inline void scte104srd_set_avails_expected(uint8_t *p, uint8_t i_avails_expected)
|
|
{
|
|
p[12] = i_avails_expected;
|
|
}
|
|
|
|
static inline uint8_t scte104srd_get_auto_return(const uint8_t *p)
|
|
{
|
|
return p[13];
|
|
}
|
|
|
|
static inline void scte104srd_set_auto_return(uint8_t *p, uint8_t i_auto_return)
|
|
{
|
|
p[13] = i_auto_return;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* SCTE-104 : time_signal_request_data
|
|
*****************************************************************************/
|
|
#define SCTE104TSRD_HEADER_SIZE 2
|
|
|
|
static inline uint16_t scte104tsrd_get_pre_roll_time(const uint8_t *p)
|
|
{
|
|
return ((uint16_t)p[0] << 8) | ((uint16_t)p[1]);
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* SCTE-104 : insert_descriptor_request_data
|
|
*****************************************************************************/
|
|
#define SCTE104IDRD_HEADER_SIZE 1
|
|
|
|
static inline uint8_t scte104idrd_get_count(const uint8_t *p)
|
|
{
|
|
return p[0];
|
|
}
|
|
|
|
static inline uint8_t *scte104idrd_get_image(const uint8_t *p)
|
|
{
|
|
return (uint8_t *)(p + 1);
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* SCTE-104 : insert_segmentation_descriptor_request_data
|
|
*****************************************************************************/
|
|
#define SCTE104ISDRD_HEADER_SIZE 18
|
|
|
|
static inline uint32_t scte104isdrd_get_event_id(const uint8_t *p)
|
|
{
|
|
return ((uint32_t)p[0] << 24) | ((uint32_t)p[1] << 16) |
|
|
((uint32_t)p[2] << 8) | ((uint32_t)p[3]);
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_cancel_indicator(const uint8_t *p)
|
|
{
|
|
return p[4];
|
|
}
|
|
|
|
static inline uint16_t scte104isdrd_get_duration(const uint8_t *p)
|
|
{
|
|
return ((uint16_t)p[5] << 8) | ((uint16_t)p[6]);
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_upid_type(const uint8_t *p)
|
|
{
|
|
return p[7];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_upid_length(const uint8_t *p)
|
|
{
|
|
return p[8];
|
|
}
|
|
|
|
static inline uint8_t *scte104isdrd_get_upid(const uint8_t *p)
|
|
{
|
|
return (uint8_t *)p + 9;
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_type_id(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[0];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_num(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[1];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_expected(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[2];
|
|
}
|
|
|
|
static inline uint8_t
|
|
scte104isdrd_get_duration_extension_frames(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[3];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_delivery_not_restricted(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[4];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_web_delivery_allowed(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[5];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_no_regional_blackout(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[6];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_archive_allowed(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[7];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_device_restrictions(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[8];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_insert_sub_info(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[9];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_sub_num(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[10];
|
|
}
|
|
|
|
static inline uint8_t scte104isdrd_get_sub_expected(const uint8_t *p)
|
|
{
|
|
uint8_t upid_length = scte104isdrd_get_upid_length(p);
|
|
p += 9 + upid_length;
|
|
return p[11];
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|