New upstream version 26.0.0+dfsg1
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Sebastian Ramacher
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212
deps/libcaption/caption/mpeg.h
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212
deps/libcaption/caption/mpeg.h
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/**********************************************************************************************/
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/* The MIT License */
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/* */
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/* Copyright 2016-2017 Twitch Interactive, Inc. or its affiliates. All Rights Reserved. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining a copy */
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/* of this software and associated documentation files (the "Software"), to deal */
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/* in the Software without restriction, including without limitation the rights */
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/* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell */
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/* copies of the Software, and to permit persons to whom the Software is */
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/* furnished to do so, subject to the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be included in */
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/* 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, EXPRESS OR */
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/* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */
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/* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */
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/* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
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/* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */
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/* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN */
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/* THE SOFTWARE. */
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/**********************************************************************************************/
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#ifndef LIBCAPTION_MPEG_H
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#define LIBCAPTION_MPEG_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "caption.h"
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#include "cea708.h"
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#include "scc.h"
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#include <float.h>
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#include <stddef.h>
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////////////////////////////////////////////////////////////////////////////////
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#define STREAM_TYPE_H262 0x02
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#define STREAM_TYPE_H264 0x1B
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#define STREAM_TYPE_H265 0x24
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#define H262_SEI_PACKET 0xB2
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#define H264_SEI_PACKET 0x06
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#define H265_SEI_PACKET 0x27 // There is also 0x28
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#define MAX_NALU_SIZE (6 * 1024 * 1024)
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#define MAX_REFRENCE_FRAMES 64
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typedef struct {
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size_t size;
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uint8_t data[MAX_NALU_SIZE + 1];
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double dts, cts;
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libcaption_stauts_t status;
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// Priority queue for out of order frame processing
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// Should probablly be a linked list
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size_t front;
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size_t latent;
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cea708_t cea708[MAX_REFRENCE_FRAMES];
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} mpeg_bitstream_t;
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void mpeg_bitstream_init(mpeg_bitstream_t* packet);
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////////////////////////////////////////////////////////////////////////////////
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// TODO make convenience functions for flv/mp4
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/*! \brief
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\param
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*/
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size_t mpeg_bitstream_parse(mpeg_bitstream_t* packet, caption_frame_t* frame, const uint8_t* data, size_t size, unsigned stream_type, double dts, double cts);
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/*! \brief
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\param
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*/
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static inline libcaption_stauts_t mpeg_bitstream_status(mpeg_bitstream_t* packet) { return packet->status; }
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/*! \brief
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Flushes latent packets caused by out or order frames.
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Returns number of latent frames remaining, 0 when complete;
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\param
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*/
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size_t mpeg_bitstream_flush(mpeg_bitstream_t* packet, caption_frame_t* frame);
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////////////////////////////////////////////////////////////////////////////////
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typedef enum {
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sei_type_buffering_period = 0,
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sei_type_pic_timing = 1,
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sei_type_pan_scan_rect = 2,
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sei_type_filler_payload = 3,
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sei_type_user_data_registered_itu_t_t35 = 4,
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sei_type_user_data_unregistered = 5,
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sei_type_recovery_point = 6,
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sei_type_dec_ref_pic_marking_repetition = 7,
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sei_type_spare_pic = 8,
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sei_type_scene_info = 9,
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sei_type_sub_seq_info = 10,
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sei_type_sub_seq_layer_characteristics = 11,
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sei_type_sub_seq_characteristics = 12,
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sei_type_full_frame_freeze = 13,
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sei_type_full_frame_freeze_release = 14,
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sei_type_full_frame_snapshot = 15,
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sei_type_progressive_refinement_segment_start = 16,
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sei_type_progressive_refinement_segment_end = 17,
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sei_type_motion_constrained_slice_group_set = 18,
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sei_type_film_grain_characteristics = 19,
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sei_type_deblocking_filter_display_preference = 20,
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sei_type_stereo_video_info = 21,
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} sei_msgtype_t;
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////////////////////////////////////////////////////////////////////////////////
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typedef struct _sei_message_t {
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size_t size;
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sei_msgtype_t type;
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struct _sei_message_t* next;
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} sei_message_t;
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typedef struct {
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double timestamp;
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sei_message_t* head;
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sei_message_t* tail;
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} sei_t;
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/*! \brief
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\param
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*/
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void sei_init(sei_t* sei, double timestamp);
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/*! \brief
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\param
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*/
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void sei_free(sei_t* sei);
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/*! \brief
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\param
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*/
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void sei_cat(sei_t* to, sei_t* from, int itu_t_t35);
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/*! \brief
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\param
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*/
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void sei_message_append(sei_t* sei, sei_message_t* msg);
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/*! \brief
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\param
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*/
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libcaption_stauts_t sei_parse(sei_t* sei, const uint8_t* data, size_t size, double timestamp);
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/*! \brief
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\param
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*/
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static inline sei_message_t* sei_message_head(sei_t* sei) { return sei->head; }
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/*! \brief
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\param
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*/
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static inline sei_message_t* sei_message_tail(sei_t* sei) { return sei->tail; }
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/*! \brief
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\param
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*/
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sei_message_t* sei_message_next(sei_message_t* msg);
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/*! \brief
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\param
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*/
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sei_msgtype_t sei_message_type(sei_message_t* msg);
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/*! \brief
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\param
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*/
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size_t sei_message_size(sei_message_t* msg);
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/*! \brief
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\param
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*/
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uint8_t* sei_message_data(sei_message_t* msg);
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/*! \brief
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\param
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*/
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sei_message_t* sei_message_new(sei_msgtype_t type, uint8_t* data, size_t size);
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/*! \brief
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\param
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*/
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static inline sei_message_t* sei_message_copy(sei_message_t* msg)
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{
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return sei_message_new(sei_message_type(msg), sei_message_data(msg), sei_message_size(msg));
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}
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/**
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Free message and all accoiated data. Messaged added to sei_t by using sei_append_message MUST NOT be freed
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These messages will be freed by calling sei_free()
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*/
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/*! \brief
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\param
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*/
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void sei_message_free(sei_message_t* msg);
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////////////////////////////////////////////////////////////////////////////////
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/*! \brief
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\param
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*/
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size_t sei_render_size(sei_t* sei);
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/*! \brief
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\param
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*/
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size_t sei_render(sei_t* sei, uint8_t* data);
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/*! \brief
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\param
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*/
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void sei_dump(sei_t* sei);
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/*! \brief
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\param
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*/
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void sei_dump_messages(sei_message_t* head, double timestamp);
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////////////////////////////////////////////////////////////////////////////////
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/*! \brief
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\param
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*/
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libcaption_stauts_t sei_from_scc(sei_t* sei, const scc_t* scc);
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/*! \brief
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\param
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*/
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libcaption_stauts_t sei_from_caption_frame(sei_t* sei, caption_frame_t* frame);
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/*! \brief
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\param
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*/
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libcaption_stauts_t sei_from_caption_clear(sei_t* sei);
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/*! \brief
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\param
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*/
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libcaption_stauts_t sei_to_caption_frame(sei_t* sei, caption_frame_t* frame);
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////////////////////////////////////////////////////////////////////////////////
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#ifdef __cplusplus
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}
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#endif
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#endif
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