forked from mia/Aegisub
128 lines
4.1 KiB
C++
128 lines
4.1 KiB
C++
// Copyright (c) 2006, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// -----------------------------------------------------------------------------
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//
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// AEGISUB
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//
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// Website: http://aegisub.cellosoft.com
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// Contact: mailto:zeratul@cellosoft.com
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//
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///////////
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// Headers
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#include "draw_prs.h"
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#include "../prs/prs.h"
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///////////////
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// Constructor
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DrawPRS::DrawPRS (IScriptEnvironment* _env, PClip _child, const char *filename)
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: GenericVideoFilter(_child)
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{
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// Set environment
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env = _env;
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// Load file
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try {
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file.Load(filename);
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}
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// Catch exception
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catch (const std::exception &e) {
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env->ThrowError("Error in PRS loading: %s",e.what());
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}
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catch (...) {
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env->ThrowError("Unhandled exception in PRS loading.");
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}
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}
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//////////////
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// Destructor
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DrawPRS::~DrawPRS() {
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}
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/////////////
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// Get frame
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PVideoFrame __stdcall DrawPRS::GetFrame(int n, IScriptEnvironment* env) {
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// Avisynth frame
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PVideoFrame avsFrame = child->GetFrame(n,env);
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try {
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// Check if there is anything to be drawn
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if (file.HasDataAtFrame(n)) {
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// Create the PRSFrame structure
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env->MakeWritable(&avsFrame);
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PRSVideoFrame frame;
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frame.data[0] = (char*) avsFrame->GetWritePtr();
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frame.w = avsFrame->GetRowSize()/4;
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frame.h = avsFrame->GetHeight();
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frame.pitch = avsFrame->GetPitch();
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frame.flipColors = true;
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frame.flipVertical = true;
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// Set colorspace
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VideoInfo vi = child->GetVideoInfo();
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if (vi.IsYV12()) frame.colorSpace = ColorSpace_YV12;
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else if (vi.IsYUY2()) frame.colorSpace = ColorSpace_YUY2;
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else if (vi.IsRGB32()) frame.colorSpace = ColorSpace_RGB32;
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else if (vi.IsRGB24()) frame.colorSpace = ColorSpace_RGB24;
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// Draw into the frame
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file.DrawFrame(n,&frame);
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}
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}
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// Catch exception
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catch (const std::exception &e) {
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env->ThrowError(e.what());
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}
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// Return frame
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return avsFrame;
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}
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//////////////////////////////
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// Actually create the filter
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// This is the function that created the filter, when the filter has been called.
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AVSValue __cdecl CreateDrawPRS(AVSValue args, void* user_data, IScriptEnvironment* env) {
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return new DrawPRS(env, args[0].AsClip(), args[1].AsString());
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}
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/////////////////////////
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// Avisynth registration
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// The following function is the function that actually registers the filter in AviSynth
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// It is called automatically, when the plugin is loaded to see which functions this filter contains.
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extern "C" __declspec(dllexport) const char* __stdcall AvisynthPluginInit2(IScriptEnvironment* env) {
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env->AddFunction("DrawPRS", "c[file]s", CreateDrawPRS, 0);
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return "`Pre-Rendered Subtitles' by Rodrigo Braz Monteiro (ArchMage ZeratuL)";
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}
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