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Aegisub/aegisub/video_provider_avs.cpp
Rodrigo Braz Monteiro e79ef00863 Originally committed to SVN as r668.
2007-01-01 03:34:08 +00:00

501 lines
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// Copyright (c) 2006, Fredrik Mellbin
// 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
//
#include <wx/filename.h>
#include <wx/msw/registry.h>
#include <wx/filename.h>
#include "video_provider_avs.h"
#include "options.h"
#include "main.h"
#include "vfr.h"
#ifdef __WINDOWS__
///////////////
// Constructor
AvisynthVideoProvider::AvisynthVideoProvider(wxString _filename, wxString _subfilename, double _fps) {
AVSTRACE(wxString::Format(_T("AvisynthVideoProvider: Creating new AvisynthVideoProvider: \"%s\", \"%s\""), _filename, _subfilename));
bool mpeg2dec3_priority = true;
RGB32Video = NULL;
SubtitledVideo = NULL;
ResizedVideo = NULL;
data = NULL;
fps = _fps;
depth = 0;
last_fnum = -1;
num_frames = 0;
subfilename = _subfilename;
zoom = 1.0;
AVSTRACE(_T("AvisynthVideoProvider: Loading VSFilter"));
LoadVSFilter();
AVSTRACE(_T("AvisynthVideoProvider: VSFilter loaded"));
AVSTRACE(_T("AvisynthVideoProvider: Opening video"));
RGB32Video = OpenVideo(_filename,mpeg2dec3_priority);
AVSTRACE(_T("AvisynthVideoProvider: Video opened"));
dar = GetSourceWidth()/(double)GetSourceHeight();
AVSTRACE(_T("AvisynthVideoProvider: Calculated aspect ratio"));
if( _subfilename.IsEmpty() ) SubtitledVideo = RGB32Video;
else SubtitledVideo = ApplySubtitles(subfilename, RGB32Video);
AVSTRACE(_T("AvisynthVideoProvider: Applied subtitles"));
ResizedVideo = ApplyDARZoom(zoom, dar, SubtitledVideo);
AVSTRACE(_T("AvisynthVideoProvider: Applied zoom"));
vi = ResizedVideo->GetVideoInfo();
AVSTRACE(_T("AvisynthVideoProvider: Got video info"));
AVSTRACE(_T("AvisynthVideoProvider: Done creating AvisynthVideoProvider"));
}
//////////////
// Destructor
AvisynthVideoProvider::~AvisynthVideoProvider() {
AVSTRACE(_T("AvisynthVideoProvider: Destroying AvisynthVideoProvider"));
RGB32Video = NULL;
SubtitledVideo = NULL;
ResizedVideo = NULL;
if( data ) delete data;
AVSTRACE(_T("AvisynthVideoProvider: AvisynthVideoProvider destroyed"));
}
/////////////////////
// Refresh subtitles
void AvisynthVideoProvider::RefreshSubtitles() {
AVSTRACE(_T("AvisynthVideoProvider::RefreshSubtitles: Refreshing subtitles"));
ResizedVideo = NULL;
SubtitledVideo = NULL;
SubtitledVideo = ApplySubtitles(subfilename, RGB32Video);
ResizedVideo = ApplyDARZoom(zoom,dar,SubtitledVideo);
GetFrame(last_fnum,true);
AVSTRACE(_T("AvisynthVideoProvider::RefreshSubtitles: Subtitles refreshed"));
}
////////////////////////////
// Set Display Aspect Ratio
void AvisynthVideoProvider::SetDAR(double _dar) {
AVSTRACE(_T("AvisynthVideoProvider::SetDAR: Setting DAR"));
dar = _dar;
ResizedVideo = NULL;
delete data;
data = NULL;
ResizedVideo = ApplyDARZoom(zoom,dar,SubtitledVideo);
GetFrame(last_fnum,true);
AVSTRACE(_T("AvisynthVideoProvider::SetDAR: DAR set"));
}
////////////
// Set Zoom
void AvisynthVideoProvider::SetZoom(double _zoom) {
AVSTRACE(_T("AvisynthVideoProvider::SetZoom: Setting zoom"));
zoom = _zoom;
ResizedVideo = NULL;
delete data;
data = NULL;
ResizedVideo = ApplyDARZoom(zoom,dar,SubtitledVideo);
GetFrame(last_fnum,true);
AVSTRACE(_T("AvisynthVideoProvider::SetZoom: Zoom set"));
}
/////////////////////////////////////////
// Actually open the video into Avisynth
PClip AvisynthVideoProvider::OpenVideo(wxString _filename, bool mpeg2dec3_priority) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Opening video"));
wxMutexLocker lock(AviSynthMutex);
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Got AVS mutex"));
AVSValue script;
bool usedDirectshow = false;
wxString extension = _filename.Right(4);
extension.LowerCase();
try {
// Prepare filename
//char *videoFilename = env->SaveString(_filename.mb_str(wxConvLocal));
wxFileName fname(_filename);
char *videoFilename = env->SaveString(fname.GetShortPath().mb_str(wxConvLocal));
// Avisynth file, just import it
if (extension == _T(".avs")) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Opening .avs file with Import"));
script = env->Invoke("Import", videoFilename);
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Finished"));
}
// Open avi file with AviSource
else if (extension == _T(".avi")) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Opening .avi file with AviSource"));
try {
const char *argnames[2] = { 0, "audio" };
AVSValue args[2] = { videoFilename, false };
script = env->Invoke("AviSource", AVSValue(args,2), argnames);
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Successfully opened .avi file without audio"));
}
// On Failure, fallback to DSS
catch (AvisynthError &) {
AVSTRACE(_T("Failed to open .avi file with AviSource, switching to DirectShowSource"));
goto directshowOpen;
}
}
// Open d2v with mpeg2dec3
else if (extension == _T(".d2v") && env->FunctionExists("mpeg2dec3_Mpeg2Source") && mpeg2dec3_priority) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Opening .d2v file with mpeg2dec3_Mpeg2Source"));
script = env->Invoke("mpeg2dec3_Mpeg2Source", videoFilename);
}
// If that fails, try opening it with other mpeg2source
else if (extension == _T(".d2v") && env->FunctionExists("Mpeg2Source")) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Opening .d2v file with other Mpeg2Source"));
script = env->Invoke("Mpeg2Source", videoFilename);
}
// Some other format, such as mkv, mp4, ogm... try DirectShowSource
else {
directshowOpen:
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Opening file with DirectShowSource"));
// Try loading DirectShowSource2
bool dss2 = false;
if (env->FunctionExists("dss2")) dss2 = true;
if (!dss2) {
wxFileName dss2path(AegisubApp::folderName + _T("avss.dll"));
if (dss2path.FileExists()) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Loading DirectShowSource2"));
env->Invoke("LoadPlugin",env->SaveString(dss2path.GetFullPath().mb_str(wxConvLocal)));
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Loaded DirectShowSource2"));
}
}
// If DSS2 loaded properly, try using it
dss2 = false;
if (env->FunctionExists("dss2")) {
AVSTRACE(_T("visynthVideoProvider::OpenVideo: Invoking DSS2"));
if (fps == 0.0) script = env->Invoke("DSS2", videoFilename);
else {
const char *argnames[2] = { 0, "fps" };
AVSValue args[2] = { videoFilename, fps };
script = env->Invoke("DSS2", AVSValue(args,2), argnames);
}
AVSTRACE(_T("visynthVideoProvider::OpenVideo: Successfully opened file with DSS2"));
dss2 = true;
}
// Try DirectShowSource
if (!dss2) {
if (env->FunctionExists("DirectShowSource")) {
if (fps == 0.0) {
const char *argnames[3] = { 0, "video", "audio" };
AVSValue args[3] = { videoFilename, true, false };
script = env->Invoke("DirectShowSource", AVSValue(args,3), argnames);
}
else {
const char *argnames[4] = { 0, "video", "audio" , "fps" };
AVSValue args[4] = { videoFilename, true, false , fps };
script = env->Invoke("DirectShowSource", AVSValue(args,4), argnames);
}
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Successfully opened file with DSS without audio"));
usedDirectshow = true;
}
// Failed to find a suitable function
else {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: DSS function not found"));
throw AvisynthError("No function suitable for opening the video found");
}
}
}
}
// Catch errors
catch (AvisynthError &err) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Avisynth error: ") + wxString(err.msg,wxConvLocal));
throw _T("AviSynth error: ") + wxString(err.msg,wxConvLocal);
}
// Check if video was loaded properly
if (!script.AsClip()->GetVideoInfo().HasVideo()) {
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: No suitable video found"));
throw _T("No usable video found in ") + _filename;
}
// Convert to RGB32
script = env->Invoke("ConvertToRGB32", script);
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Converted to RGB32"));
// Directshow
//if (usedDirectshow) wxMessageBox(_T("Warning! The file is being opened using Avisynth's DirectShowSource, which has unreliable seeking. Frame numbers might not match the real number. PROCEED AT YOUR OWN RISK!"),_T("DirectShowSource warning"),wxICON_EXCLAMATION);
// Cache
AVSTRACE(_T("AvisynthVideoProvider::OpenVideo: Finished opening video, AVS mutex will be released now"));
return (env->Invoke("Cache", script)).AsClip();
}
////////////////////////////////////////////////////////
// Apply VSFilter subtitles, or whatever is appropriate
PClip AvisynthVideoProvider::ApplySubtitles(wxString _filename, PClip videosource) {
AVSTRACE(_T("AvisynthVideoProvider::ApplySutitles: Applying subtitles"));
wxMutexLocker lock(AviSynthMutex);
AVSTRACE(_T("AvisynthVideoProvider::ApplySutitles: Got AVS mutex"));
// Insert subs
AVSValue script;
char temp[512];
wxFileName fname(_filename);
strcpy(temp,fname.GetShortPath().mb_str(wxConvLocal));
AVSValue args[2] = { videosource, temp };
try {
AVSTRACE(_T("AvisynthVideoProvider::ApplySutitles: Now invoking TextSub"));
script = env->Invoke("TextSub", AVSValue(args,2));
AVSTRACE(_T("AvisynthVideoProvider::ApplySutitles: TextSub invoked successfully"));
} catch (AvisynthError &err) {
AVSTRACE(_T("AvisynthVideoProvider::ApplySutitles: Avisynth error: ") + wxString(err.msg,wxConvLocal));
throw _T("AviSynth error: ") + wxString(err.msg,wxConvLocal);
}
// Cache
AVSTRACE(_T("AvisynthVideoProvider::ApplySutitles: Subtitles applied, AVS mutex will be released now"));
return (env->Invoke("Cache", script)).AsClip();
}
/////////////////////////////////////
// Apply Display Aspect Ratio + Zoom
PClip AvisynthVideoProvider::ApplyDARZoom(double _zoom, double _dar, PClip videosource) {
AVSTRACE(_T("AvisynthVideoProvider::ApplyDARZoom: Applying DAR zoom"));
wxMutexLocker lock(AviSynthMutex);
AVSTRACE(_T("AvisynthVideoProvider::ApplyDARZoom: Got AVS mutex"));
AVSValue script;
VideoInfo vil = videosource->GetVideoInfo();
int w = vil.height * _zoom * _dar;
int h = vil.height * _zoom;
try {
// Resize
if (!env->FunctionExists(Options.AsText(_T("Video resizer")).mb_str(wxConvLocal)))
throw AvisynthError("Selected resizer doesn't exist");
AVSValue args[3] = { videosource, w, h };
AVSTRACE(_T("AvisynthVideoProvider::ApplyDARZoom: Invoking resizing function"));
script = env->Invoke(Options.AsText(_T("Video resizer")).mb_str(wxConvLocal), AVSValue(args,3));
AVSTRACE(_T("AvisynthVideoProvider::ApplyDARZoom: Resizer invoked successfully"));
} catch (AvisynthError &err) {
AVSTRACE(_T("AvisynthVideoProvider::ApplyDARZoom: Avisynth error: ") + wxString(err.msg,wxConvLocal));
throw _T("AviSynth error: ") + wxString(err.msg,wxConvLocal);
}
vi = script.AsClip()->GetVideoInfo();
AVSTRACE(_T("AvisynthVideoProvider::ApplyDARZoom: DAR zoom applied successfully, AVS mutex will be released now"));
return (env->Invoke("Cache",script)).AsClip();
}
////////////////////////
// Actually get a frame
wxBitmap AvisynthVideoProvider::GetFrame(int _n, bool force) {
// Transform n if overriden
int n = _n;
if (frameTime.Count()) {
if (n < 0) n = 0;
if (n >= (signed) frameTime.Count()) n = frameTime.Count()-1;
int time = frameTime[n];
double curFps = (double)vi.fps_numerator/(double)vi.fps_denominator;
n = time * curFps / 1000.0;
}
// Get frame
AVSTRACE(_T("AvisynthVideoProvider::GetFrame"));
if (n != last_fnum || force) {
wxMutexLocker lock(AviSynthMutex);
PVideoFrame frame = ResizedVideo->GetFrame(n,env);
int ndepth = wxDisplayDepth();
if (depth != ndepth) {
depth = ndepth;
delete data;
data = NULL;
}
if (!data)
data = new unsigned char[vi.width*vi.height*depth/8];
unsigned char* dst = data+(vi.width*(vi.height-1)*depth/8);
if (depth == 32) {
int rs = vi.RowSize();
const unsigned char* src = frame->GetReadPtr();
int srcpitch = frame->GetPitch();
for (int y = 0; y < vi.height; y++) {
memcpy(dst,src,rs);
src+=srcpitch;
dst-=rs;
}
}
else if (depth == 24) {
//fail
}
else if (depth == 16) {
const unsigned char *read_ptr = frame->GetReadPtr();
unsigned short *write_ptr = (unsigned short*) dst;
unsigned char r,g,b;
int srcpitch = frame->GetPitch();
int rs = vi.RowSize();
for (int y = 0; y < vi.height; y++) {
for (int x=0,dx=0;x<rs;x+=4,dx++) {
r = read_ptr[x+2];
g = read_ptr[x+1];
b = read_ptr[x];
write_ptr[dx] = ((r>>3)<<11) | ((g>>2)<<5) | b>>3;
}
write_ptr -= vi.width;
read_ptr += srcpitch;
}
}
else {
//fail
}
last_frame = wxBitmap((const char*)data, vi.width, vi.height, depth);
last_fnum = n;
}
return wxBitmap(last_frame);
}
///////////////////////////////////
// Get a frame intensity as floats
void AvisynthVideoProvider::GetFloatFrame(float* Buffer, int n) {
AVSTRACE(_T("AvisynthVideoProvider::GetFloatFrame"));
wxMutexLocker lock(AviSynthMutex);
PVideoFrame frame = ResizedVideo->GetFrame(n,env);
int rs = vi.RowSize();
const unsigned char* src = frame->GetReadPtr();
int srcpitch = frame->GetPitch();
for( int i = 0; i < vi.height; i++ )
{
for( int x=0; x<vi.width;x++ )
{
Buffer[(vi.height-i-1)*vi.width+x] = src[x*4+0]*0.3 + src[x*4+1]*0.4 + src[x*4+2]*0.3;
}
src+=srcpitch;
}
}
/////////////////
// Load VSFilter
void AvisynthVideoProvider::LoadVSFilter() {
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: Loading VSFilter"));
// Loading an avisynth plugin multiple times does almost nothing
wxFileName vsfilterPath(AegisubApp::folderName + _T("vsfilter.dll"));
if (vsfilterPath.FileExists()) {
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: Invoking LoadPlugin"));
env->Invoke("LoadPlugin",env->SaveString(vsfilterPath.GetFullPath().mb_str(wxConvLocal)));
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: Loaded"));
} else {
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: VSFilter.dll not found in Aegisub dir, trying to locate registered DShow filter"));
wxRegKey reg(_T("HKEY_CLASSES_ROOT\\CLSID\\{9852A670-F845-491B-9BE6-EBD841B8A613}\\InprocServer32"));
if (reg.Exists()) {
wxString fn;
reg.QueryValue(_T(""),fn);
vsfilterPath = fn;
if (vsfilterPath.FileExists()) {
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: Found as DShow filter, loading"));
env->Invoke("LoadPlugin",env->SaveString(vsfilterPath.GetFullPath().mb_str(wxConvLocal)));
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: Loaded"));
return;
}
vsfilterPath = _T("vsfilter.dll");
} else if (vsfilterPath.FileExists())
env->Invoke("LoadPlugin",env->SaveString(vsfilterPath.GetFullPath().mb_str(wxConvLocal)));
else if (!env->FunctionExists("TextSub")) {
AVSTRACE(_T("AvisynthVideoProvider::LoadVSFilter: Couldn't locate VSFilter"));
throw _T("Couldn't locate VSFilter");
}
}
}
////////////////////////
// Override frame times
void AvisynthVideoProvider::OverrideFrameTimeList(wxArrayInt list) {
frameTime = list;
num_frames = frameTime.Count();
}
#endif
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