libobs: Update libcaption library
(This commit also modifies deps/libcaption) Closes obsproject/obs-studio#1354
This commit is contained in:
Matthew Szatmary
jp9000
111
deps/libcaption/caption/caption.h
vendored
111
deps/libcaption/caption/caption.h
vendored
@@ -1,7 +1,7 @@
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/**********************************************************************************************/
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/* The MIT License */
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/* */
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/* Copyright 2016-2016 Twitch Interactive, Inc. or its affiliates. All Rights Reserved. */
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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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@@ -23,9 +23,13 @@
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/**********************************************************************************************/
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#ifndef LIBCAPTION_H
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#define LIBCAPTION_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "eia608.h"
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#include "utf8.h"
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#include "xds.h"
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#include "eia608.h"
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// ssize_t is POSIX and does not exist on Windows
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#if defined(_MSC_VER)
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@@ -37,16 +41,15 @@ typedef signed int ssize_t;
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#endif
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typedef enum {
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LIBCAPTION_OK = 1,
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LIBCAPTION_ERROR = 0,
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LIBCAPTION_OK = 1,
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LIBCAPTION_READY = 2
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} libcaption_stauts_t;
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/*! \brief
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\param
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*/
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static inline libcaption_stauts_t libcaption_status_update (libcaption_stauts_t old_stat, libcaption_stauts_t new_stat) { return (LIBCAPTION_ERROR == old_stat || LIBCAPTION_ERROR == new_stat) ? LIBCAPTION_ERROR : (LIBCAPTION_READY == old_stat) ? LIBCAPTION_READY : new_stat; }
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static inline libcaption_stauts_t libcaption_status_update(libcaption_stauts_t old_stat, libcaption_stauts_t new_stat)
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{
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return (LIBCAPTION_ERROR == old_stat || LIBCAPTION_ERROR == new_stat) ? LIBCAPTION_ERROR : (LIBCAPTION_READY == old_stat) ? LIBCAPTION_READY : new_stat;
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}
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#define SCREEN_ROWS 15
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#define SCREEN_COLS 32
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@@ -54,47 +57,54 @@ static inline libcaption_stauts_t libcaption_status_update (libcaption_stauts_t
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typedef struct {
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unsigned int uln : 1; //< underline
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unsigned int sty : 3; //< style
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utf8_char_t data[5]; //< 4 byte utf8 values plus null term
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} caption_frame_cell_t;
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utf8_char_t data[5]; //< 4 byte utf8 values plus null term
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} caption_frame_cell_t;
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typedef struct {
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caption_frame_cell_t cell[SCREEN_ROWS][SCREEN_COLS];
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} caption_frame_buffer_t;
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typedef struct {
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typedef struct {
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unsigned int uln : 1; //< underline
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unsigned int sty : 3; //< style
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unsigned int mod : 3; //< current mode
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unsigned int rup : 2; //< roll-up line count minus 1
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uint16_t row, col, cc_data;
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int8_t row, col;
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uint16_t cc_data;
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} caption_frame_state_t;
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// timestamp and duration are in seconds
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typedef struct {
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double timestamp;
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double duration;
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xds_t xds;
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caption_frame_state_t state;
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caption_frame_buffer_t front;
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caption_frame_buffer_t back;
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caption_frame_buffer_t* write;
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libcaption_stauts_t status;
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} caption_frame_t;
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// typedef enum {
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// eia608_paint_on = 0,
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// eia608_pop_on = 1,
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// eia608_rollup_2 = 2,
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// eia608_rollup_3 = 3,
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// eia608_rollup_4 = 4,
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// } eia608_display_mode_t;
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// eia608_display_mode_t caption_frame_mode (caption_frame_t* frame);
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/*!
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\brief Initializes an allocated caption_frame_t instance
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\param frame Pointer to prealocated caption_frame_t object
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*/
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void caption_frame_init (caption_frame_t* frame);
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void caption_frame_init(caption_frame_t* frame);
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/*! \brief
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\param
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*/
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static inline int caption_frame_popon(caption_frame_t* frame) { return (frame->write == &frame->back) ? 1 : 0; }
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/*! \brief
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\param
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*/
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static inline int caption_frame_painton(caption_frame_t* frame) { return (frame->write == &frame->front) ? 1 : 0; }
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/*! \brief
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\param
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*/
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const static int _caption_frame_rollup[] = { 0, 2, 3, 4 };
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static inline int caption_frame_rollup(caption_frame_t* frame) { return _caption_frame_rollup[frame->state.rup]; }
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/*! \brief
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\param
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*/
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static inline double caption_frame_timestamp(caption_frame_t* frame) { return frame->timestamp; }
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/*! \brief Writes a single charcter to a caption_frame_t object
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\param frame A pointer to an allocted and initialized caption_frame_t object
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\param row Row position to write charcter, must be between 0 and SCREEN_ROWS-1
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@@ -103,39 +113,32 @@ void caption_frame_init (caption_frame_t* frame);
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\param underline Set underline attribute, 0 = off any other value = on
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\param c pointer to a single valid utf8 charcter. Bytes are automatically determined, and a NULL terminator is not required
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*/
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int caption_frame_write_char (caption_frame_t* frame, int row, int col, eia608_style_t style, int underline, const utf8_char_t* c);
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int caption_frame_write_char(caption_frame_t* frame, int row, int col, eia608_style_t style, int underline, const utf8_char_t* c);
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/*! \brief
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\param
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*/
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const utf8_char_t* caption_frame_read_char (caption_frame_t* frame, int row, int col, eia608_style_t* style, int* underline);
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const utf8_char_t* caption_frame_read_char(caption_frame_t* frame, int row, int col, eia608_style_t* style, int* underline);
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/*! \brief
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\param
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*/
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libcaption_stauts_t caption_frame_decode(caption_frame_t* frame, uint16_t cc_data, double timestamp);
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/*! \brief
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\param
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*/
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int caption_frame_from_text(caption_frame_t* frame, const utf8_char_t* data);
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/*! \brief
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\param
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*/
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#define CAPTION_FRAME_TEXT_BYTES (4 * ((SCREEN_COLS + 2) * SCREEN_ROWS) + 1)
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size_t caption_frame_to_text(caption_frame_t* frame, utf8_char_t* data);
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/*! \brief
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\param
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*/
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#define CAPTION_FRAME_DUMP_BUF_SIZE 8192
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size_t caption_frame_dump_buffer(caption_frame_t* frame, utf8_char_t* buf);
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void caption_frame_dump(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 caption_frame_decode (caption_frame_t* frame, uint16_t cc_data, double timestamp);
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/*! \brief
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\param
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*/
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int caption_frame_from_text (caption_frame_t* frame, const utf8_char_t* data);
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/*! \brief
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\param
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*/
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#define CAPTION_FRAME_TEXT_BYTES (((2+SCREEN_ROWS)*SCREEN_COLS*4)+1)
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void caption_frame_to_text (caption_frame_t* frame, utf8_char_t* data);
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/*! \brief
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\param
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*/
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#define CAPTION_FRAME_DUMP_BUF_SIZE 4096
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size_t caption_frame_dump_buffer (caption_frame_t* frame, utf8_char_t* buf);
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void caption_frame_dump (caption_frame_t* frame);
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/*! \brief
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\param
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*/
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#define CAPTION_FRAME_JSON_BUF_SIZE 32768
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size_t caption_frame_json (caption_frame_t* frame, utf8_char_t* buf);
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#ifdef __cplusplus
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}
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#endif
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#endif
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