288 lines
8.7 KiB
C++
288 lines
8.7 KiB
C++
// Copyright (c) 2006, Rodrigo Braz Monteiro
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// * Neither the name of the Aegisub Group nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// -----------------------------------------------------------------------------
|
|
//
|
|
// AEGISUB
|
|
//
|
|
// Website: http://aegisub.cellosoft.com
|
|
// Contact: mailto:zeratul@cellosoft.com
|
|
//
|
|
|
|
|
|
///////////
|
|
// Headers
|
|
#include <wx/image.h>
|
|
#include <wx/mstream.h>
|
|
#include "subtitle_format_prs.h"
|
|
#include "ass_file.h"
|
|
#include "ass_dialogue.h"
|
|
#include "avisynth_wrap.h"
|
|
#include "video_box.h"
|
|
#include "video_display.h"
|
|
#include "video_provider.h"
|
|
#include "main.h"
|
|
#include "frame_main.h"
|
|
#include "vfr.h"
|
|
#include "utils.h"
|
|
#include "../prs/prs_file.h"
|
|
#include "../prs/prs_image.h"
|
|
#include "../prs/prs_display.h"
|
|
|
|
|
|
//////////////////////
|
|
// Can write to file?
|
|
bool PRSSubtitleFormat::CanWriteFile(wxString filename) {
|
|
#ifdef __WINDOWS__
|
|
return (filename.Right(4).Lower() == _T(".prs"));
|
|
#else
|
|
return false;
|
|
#endif
|
|
}
|
|
|
|
|
|
//////////////
|
|
// Write file
|
|
void PRSSubtitleFormat::WriteFile(wxString filename,wxString encoding) {
|
|
#ifdef __WINDOWS__
|
|
// Video loaded?
|
|
VideoDisplay *display = ((AegisubApp*)wxTheApp)->frame->videoBox->videoDisplay;
|
|
|
|
// Create file
|
|
PRSFile file;
|
|
|
|
// Open two Avisynth environments
|
|
AviSynthWrapper avs1,avs2;
|
|
IScriptEnvironment *env1 = avs1.GetEnv();
|
|
IScriptEnvironment *env2 = avs2.GetEnv();
|
|
|
|
// Prepare environments
|
|
wxString val = wxString::Format(_T("BlankClip(pixel_type=\"RGB32\",length=%i,width=%i,height=%i,fps=%f"),display->provider->GetFrameCount(),display->provider->GetSourceWidth(),display->provider->GetSourceHeight(),display->provider->GetFPS());
|
|
AVSValue script1 = env1->Invoke("Eval",AVSValue(wxString(val + _T(",color=$000000)")).mb_str(wxConvUTF8)));
|
|
AVSValue script2 = env2->Invoke("Eval",AVSValue(wxString(val + _T(",color=$FFFFFF)")).mb_str(wxConvUTF8)));
|
|
char temp[512];
|
|
strcpy(temp,display->GetTempWorkFile().mb_str(wxConvLocal));
|
|
AVSValue args1[2] = { script1.AsClip(), temp };
|
|
AVSValue args2[2] = { script2.AsClip(), temp };
|
|
try {
|
|
script1 = env1->Invoke("TextSub", AVSValue(args1,2));
|
|
script2 = env2->Invoke("TextSub", AVSValue(args2,2));
|
|
}
|
|
catch (AvisynthError &err) {
|
|
throw _T("AviSynth error: ") + wxString(err.msg,wxConvLocal);
|
|
}
|
|
|
|
// Loop through subtitles in file
|
|
AssFile *ass = AssFile::top;
|
|
AssDialogue *diag = NULL;
|
|
PClip clip1 = script1.AsClip();
|
|
PClip clip2 = script2.AsClip();
|
|
int id = 0;
|
|
for (entryIter cur=ass->Line.begin();cur!=ass->Line.end();cur++) {
|
|
diag = AssEntry::GetAsDialogue(*cur);
|
|
|
|
// Dialogue found
|
|
if (diag) {
|
|
// Read its image
|
|
int framen = VFR_Output.GetFrameAtTime(diag->Start.GetMS(),true);
|
|
PVideoFrame frame1 = clip1->GetFrame(framen,env1);
|
|
PVideoFrame frame2 = clip2->GetFrame(framen,env2);
|
|
|
|
// Convert to PNG
|
|
int x=0,y=0;
|
|
wxImage bmp = CalculateAlpha(frame1->GetReadPtr(),frame2->GetReadPtr(),frame1->GetRowSize(),frame1->GetHeight(),frame1->GetPitch(),&x,&y);
|
|
//RAMOutputStream stream;
|
|
wxMemoryOutputStream stream;
|
|
bmp.SaveFile(stream,wxBITMAP_TYPE_PNG);
|
|
//bmp.SaveFile(filename + wxString::Format(_T("%i.png"),id),wxBITMAP_TYPE_PNG);
|
|
|
|
// Create PRSImage
|
|
PRSImage *img = new PRSImage;
|
|
img->id = id;
|
|
img->dataLen = stream.GetSize();
|
|
img->data = new char[img->dataLen];
|
|
stream.CopyTo(img->data,img->dataLen);
|
|
|
|
// Create PRSDisplay
|
|
PRSDisplay *display = new PRSDisplay;
|
|
display->start = diag->Start.GetMS();
|
|
display->end = diag->End.GetMS();
|
|
display->id = id;
|
|
display->x = x;
|
|
display->y = y;
|
|
display->alpha = 255;
|
|
display->blend = 0;
|
|
|
|
// Insert into list
|
|
file.AddEntry(img);
|
|
file.AddEntry(display);
|
|
id++;
|
|
}
|
|
}
|
|
|
|
// Save file
|
|
file.Save((const char*)filename.mb_str(wxConvLocal));
|
|
#endif
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// TODO!! MOVE THE TWO FUNCTIONS BELOW INTO A CLASS OF THEIR OWN, THEY MIGHT FIND USE ELSEWHERE. //
|
|
// Obvious choice would be the subtitles_rasterizer.h derivation for vsfilter, when that exists. //
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
//////////////////////////////////////////////
|
|
// Generates a 32-bit wxImage from two frames
|
|
// ------------------------------------------
|
|
// Frame 1 should have the image on a BLACK background
|
|
// Frame 2 should have the same image on a WHITE background
|
|
wxImage PRSSubtitleFormat::CalculateAlpha(const unsigned char* frame1, const unsigned char* frame2, int w, int h, int pitch, int *dstx, int *dsty) {
|
|
// Allocate image data
|
|
unsigned char *data = (unsigned char*) malloc(sizeof(unsigned char)*w*h*3);
|
|
unsigned char *alpha = (unsigned char*) malloc(sizeof(unsigned char)*w*h);
|
|
|
|
// Pointers
|
|
const unsigned char *src1 = frame1;
|
|
const unsigned char *src2 = frame2;
|
|
unsigned char *dst = data + ((h-1)*w*3/4);
|
|
unsigned char *dsta = alpha + ((h-1)*w/4);
|
|
|
|
// Boundaries
|
|
int minx = w;
|
|
int miny = h;
|
|
int maxx = 0;
|
|
int maxy = 0;
|
|
|
|
// Process
|
|
int r1,g1,b1,r2,g2,b2;
|
|
int r,g,b,a;
|
|
for (int y=h;--y>=0;) {
|
|
for (int x=0;x<w;x+=4) {
|
|
// Read pixels
|
|
b1 = *(src1++);
|
|
b2 = *(src2++);
|
|
g1 = *(src1++);
|
|
g2 = *(src2++);
|
|
r1 = *(src1++);
|
|
r2 = *(src2++);
|
|
src1++;
|
|
src2++;
|
|
|
|
// Calculate new values
|
|
a = 255 + r1 - r2;
|
|
if (a == 0) {
|
|
r = 0;
|
|
g = 0;
|
|
b = 0;
|
|
}
|
|
else {
|
|
// Update range
|
|
if (x < minx) minx = x;
|
|
else if (x > maxx) maxx = x;
|
|
if (y < miny) miny = y;
|
|
else if (y > maxy) maxy = y;
|
|
|
|
// Calculate colour components
|
|
int mod;
|
|
if (a > 8) mod = 0;
|
|
else mod = 256 >> a;
|
|
r = MAX(0,r1-mod)*255 / a;
|
|
g = MAX(0,g1-mod)*255 / a;
|
|
b = MAX(0,b1-mod)*255 / a;
|
|
}
|
|
|
|
// Write to destination
|
|
*(dst++) = r;
|
|
*(dst++) = g;
|
|
*(dst++) = b;
|
|
*(dsta++) = a;
|
|
}
|
|
|
|
// Roll back dst
|
|
dst -= w*3/2;
|
|
dsta -= w/2;
|
|
}
|
|
|
|
// Create the actual image
|
|
wxImage img(w/4,h,data,false);
|
|
img.SetAlpha(alpha,false);
|
|
|
|
// Return subimage
|
|
minx /= 4;
|
|
maxx /= 4;
|
|
if (dstx) *dstx = minx;
|
|
if (dsty) *dsty = miny;
|
|
wxImage subimg = SubImageWithAlpha(img,wxRect(minx,miny,maxx-minx+1,maxy-miny+1));
|
|
return subimg;
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////
|
|
// Creates a sub image preserving alpha channel
|
|
// Modified from wx's source
|
|
wxImage PRSSubtitleFormat::SubImageWithAlpha (wxImage source,const wxRect &rect) {
|
|
wxImage image;
|
|
wxCHECK_MSG(source.Ok(), image, wxT("invalid image") );
|
|
wxCHECK_MSG((rect.GetLeft()>=0) && (rect.GetTop()>=0) && (rect.GetRight()<=source.GetWidth()) && (rect.GetBottom()<=source.GetHeight()), image, wxT("invalid subimage size") );
|
|
|
|
int subwidth=rect.GetWidth();
|
|
const int subheight=rect.GetHeight();
|
|
|
|
image.Create(subwidth, subheight, false);
|
|
|
|
image.SetAlpha();
|
|
unsigned char *subdata = image.GetData();
|
|
unsigned char *data = source.GetData();
|
|
unsigned char *subalpha = image.GetAlpha();
|
|
unsigned char *alpha = source.GetAlpha();
|
|
|
|
wxCHECK_MSG(subdata, image, wxT("unable to create image"));
|
|
|
|
const int subleft=3*rect.GetLeft();
|
|
const int width=3*source.GetWidth();
|
|
const int afullwidth=source.GetWidth();
|
|
int awidth = subwidth;
|
|
subwidth*=3;
|
|
|
|
data+=rect.GetTop()*width+subleft;
|
|
alpha+=rect.GetTop()*afullwidth+rect.GetLeft();
|
|
|
|
for (long j = 0; j < subheight; ++j) {
|
|
memcpy(subdata, data, subwidth);
|
|
memcpy(subalpha, alpha, awidth);
|
|
subdata+=subwidth;
|
|
subalpha+=awidth;
|
|
data+=width;
|
|
alpha+=afullwidth;
|
|
}
|
|
|
|
return image;
|
|
}
|