/**********************************************************************************************/ /* The MIT License */ /* */ /* Copyright 2016-2016 Twitch Interactive, Inc. or its affiliates. All Rights Reserved. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining a copy */ /* of this software and associated documentation files (the "Software"), to deal */ /* in the Software without restriction, including without limitation the rights */ /* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell */ /* copies of the Software, and to permit persons to whom the Software is */ /* furnished to do so, subject to the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be included in */ /* all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */ /* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */ /* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */ /* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */ /* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */ /* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN */ /* THE SOFTWARE. */ /**********************************************************************************************/ #ifndef LIBCAPTION_AVC_H #define LIBCAPTION_AVC_H #include "cea708.h" #include "caption.h" #include //////////////////////////////////////////////////////////////////////////////// #define MAX_NALU_SIZE (4*1024*1024) typedef struct { size_t size; uint8_t data[MAX_NALU_SIZE]; } avcnalu_t; void avcnalu_init (avcnalu_t* nalu); int avcnalu_parse_annexb (avcnalu_t* nalu, const uint8_t** data, size_t* size); static inline uint8_t avcnalu_type (avcnalu_t* nalu) { return nalu->data[0] & 0x1F; } static inline uint8_t* avcnalu_data (avcnalu_t* nalu) { return &nalu->data[0]; } static inline size_t avcnalu_size (avcnalu_t* nalu) { return nalu->size; } //////////////////////////////////////////////////////////////////////////////// typedef struct _sei_message_t sei_message_t; typedef enum { sei_type_buffering_period = 0, sei_type_pic_timing = 1, sei_type_pan_scan_rect = 2, sei_type_filler_payload = 3, sei_type_user_data_registered_itu_t_t35 = 4, sei_type_user_data_unregistered = 5, sei_type_recovery_point = 6, sei_type_dec_ref_pic_marking_repetition = 7, sei_type_spare_pic = 8, sei_type_scene_info = 9, sei_type_sub_seq_info = 10, sei_type_sub_seq_layer_characteristics = 11, sei_type_sub_seq_characteristics = 12, sei_type_full_frame_freeze = 13, sei_type_full_frame_freeze_release = 14, sei_type_full_frame_snapshot = 15, sei_type_progressive_refinement_segment_start = 16, sei_type_progressive_refinement_segment_end = 17, sei_type_motion_constrained_slice_group_set = 18, sei_type_film_grain_characteristics = 19, sei_type_deblocking_filter_display_preference = 20, sei_type_stereo_video_info = 21, } sei_msgtype_t; //////////////////////////////////////////////////////////////////////////////// // time in seconds typedef struct { double dts; double cts; sei_message_t* head; sei_message_t* tail; } sei_t; /*! \brief \param */ void sei_init (sei_t* sei); /*! \brief \param */ void sei_free (sei_t* sei); /*! \brief \param */ static inline double sei_dts (sei_t* sei) { return sei->dts; } static inline double sei_cts (sei_t* sei) { return sei->cts; } static inline double sei_pts (sei_t* sei) { return sei->dts + sei->cts; } /*! \brief \param */ int sei_parse_nalu (sei_t* sei, const uint8_t* data, size_t size, double dts, double cts); /*! \brief \param */ // TODO add dts,cts to nalu static inline int sei_parse_avcnalu (sei_t* sei, avcnalu_t* nalu, double dts, double cts) { return sei_parse_nalu (sei,avcnalu_data (nalu),avcnalu_size (nalu),dts,cts); } /*! \brief \param */ static inline int sei_finish (sei_t* sei) { return sei_parse_nalu (sei,0,0,0.0,DBL_MAX); } /*! \brief \param */ static inline sei_message_t* sei_message_head (sei_t* sei) { return sei->head; } /*! \brief \param */ static inline sei_message_t* sei_message_tail (sei_t* sei) { return sei->tail; } /*! \brief \param */ sei_message_t* sei_message_next (sei_message_t* msg); /*! \brief \param */ sei_msgtype_t sei_message_type (sei_message_t* msg); /*! \brief \param */ size_t sei_message_size (sei_message_t* msg); /*! \brief \param */ uint8_t* sei_message_data (sei_message_t* msg); /*! \brief \param */ sei_message_t* sei_message_new (sei_msgtype_t type, uint8_t* data, size_t size); /*! \brief \param */ static inline sei_message_t* sei_message_copy (sei_message_t* msg) { return sei_message_new (sei_message_type (msg), sei_message_data (msg), sei_message_size (msg)); } /** Free message and all accoiated data. Messaged added to sei_t by using sei_append_message MUST NOT be freed These messages will be freed by calling sei_free() */ /*! \brief \param */ void sei_message_free (sei_message_t* msg); //////////////////////////////////////////////////////////////////////////////// /*! \brief \param */ static inline int sei_decode_cea708 (sei_message_t* msg, cea708_t* cea708) { if (sei_type_user_data_registered_itu_t_t35 == sei_message_type (msg)) { return cea708_parse (sei_message_data (msg), sei_message_size (msg), cea708); } else { return 0; } } //////////////////////////////////////////////////////////////////////////////// /*! \brief \param */ size_t sei_render_size (sei_t* sei); /*! \brief \param */ size_t sei_render (sei_t* sei, uint8_t* data); /*! \brief \param */ void sei_dump (sei_t* sei); /*! \brief \param */ void sei_dump_messages (sei_message_t* head); //////////////////////////////////////////////////////////////////////////////// /*! \brief \param */ int sei_from_caption_frame (sei_t* sei, caption_frame_t* frame); /*! \brief \param */ libcaption_stauts_t sei_to_caption_frame (sei_t* sei, caption_frame_t* frame); /*! \brief \param */ static inline int nalu_to_caption_frame (caption_frame_t* frame, const uint8_t* data, size_t size, double pts, double dts) { sei_t sei; sei_init (&sei); sei_parse_nalu (&sei, data, size, pts, dts); sei_to_caption_frame (&sei,frame); sei_free (&sei); return 1; } //////////////////////////////////////////////////////////////////////////////// #endif