98 lines
4.3 KiB
C
98 lines
4.3 KiB
C
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/*
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* Copyright (c) 2013-2020 Fredrik Mellbin
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*
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* This file is part of VapourSynth.
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*
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* VapourSynth is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* VapourSynth is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with VapourSynth; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef VSSCRIPT4_H
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#define VSSCRIPT4_H
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#include "VapourSynth4.h"
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#define VSSCRIPT_API_MAJOR 4
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#define VSSCRIPT_API_MINOR 1
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#define VSSCRIPT_API_VERSION VS_MAKE_VERSION(VSSCRIPT_API_MAJOR, VSSCRIPT_API_MINOR)
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typedef struct VSScript VSScript;
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typedef struct VSSCRIPTAPI VSSCRIPTAPI;
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struct VSSCRIPTAPI {
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/* Returns the highest supported VSSCRIPT_API_VERSION */
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int (VS_CC *getAPIVersion)(void) VS_NOEXCEPT;
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/* Convenience function for retrieving a VSAPI pointer without having to use the VapourSynth library. Always pass VAPOURSYNTH_API_VERSION */
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const VSAPI *(VS_CC *getVSAPI)(int version) VS_NOEXCEPT;
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/*
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* Providing a pre-created core is useful for setting core creation flags, log callbacks, preload specific plugins and many other things.
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* You must create a VSScript object before evaluating a script. Always takes ownership of the core even on failure. Returns NULL on failure.
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* Pass NULL to have a core automatically created with the default options.
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*/
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VSScript *(VS_CC *createScript)(VSCore *core) VS_NOEXCEPT;
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/* The core is valid as long as the environment exists, return NULL on error */
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VSCore *(VS_CC *getCore)(VSScript *handle) VS_NOEXCEPT;
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/*
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* Evaluates a script passed in the buffer argument. The scriptFilename is only used for display purposes. in Python
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* it means that the main module won't be unnamed in error messages.
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*
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* Returns 0 on success.
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*
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* Note that calling any function other than getError() and freeScript() on a VSScript object in the error state
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* will result in undefined behavior.
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*/
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int (VS_CC *evaluateBuffer)(VSScript *handle, const char *buffer, const char *scriptFilename) VS_NOEXCEPT;
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/* Convenience version of the above function that loads the script from scriptFilename and passes as the buffer to evaluateBuffer */
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int (VS_CC *evaluateFile)(VSScript *handle, const char *scriptFilename) VS_NOEXCEPT;
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/* Returns NULL on success, otherwise an error message */
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const char *(VS_CC *getError)(VSScript *handle) VS_NOEXCEPT;
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/* Returns the script's reported exit code */
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int (VS_CC *getExitCode)(VSScript *handle) VS_NOEXCEPT;
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/* Fetches a variable of any VSMap storable type set in a script. It is stored in the key with the same name in dst. Returns 0 on success. */
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int (VS_CC *getVariable)(VSScript *handle, const char *name, VSMap *dst) VS_NOEXCEPT;
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/* Sets all keys in the provided VSMap as variables in the script. Returns 0 on success. */
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int (VS_CC *setVariables)(VSScript *handle, const VSMap *vars) VS_NOEXCEPT;
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/*
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* The returned nodes must be freed using freeNode() before calling freeScript() since they may depend on data in the VSScript
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* environment. Returns NULL if no node was set as output in the script. Index 0 is used by default in scripts and other
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* values are rarely used.
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*/
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VSNode *(VS_CC *getOutputNode)(VSScript *handle, int index) VS_NOEXCEPT;
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VSNode *(VS_CC *getOutputAlphaNode)(VSScript *handle, int index) VS_NOEXCEPT;
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int (VS_CC *getAltOutputMode)(VSScript *handle, int index) VS_NOEXCEPT;
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void (VS_CC *freeScript)(VSScript *handle) VS_NOEXCEPT;
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/*
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* Set whether or not the working directory is temporarily changed to the same
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* location as the script file when evaluateFile is called. Off by default.
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*/
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void (VS_CC *evalSetWorkingDir)(VSScript *handle, int setCWD) VS_NOEXCEPT;
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};
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VS_API(const VSSCRIPTAPI *) getVSScriptAPI(int version) VS_NOEXCEPT;
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#endif /* VSSCRIPT4_H */
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