mirror of https://github.com/odrling/Aegisub
121 lines
4.3 KiB
C++
121 lines
4.3 KiB
C++
// Copyright (c) 2005, 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
|
|
//
|
|
|
|
|
|
#pragma once
|
|
|
|
|
|
///////////
|
|
// Headers
|
|
#include "vfw_wrap.h"
|
|
#ifdef __WINDOWS__
|
|
#include <vfw.h>
|
|
#endif
|
|
|
|
|
|
/////////////////////
|
|
// Get keyframe list
|
|
wxArrayInt VFWWrapper::GetKeyFrames(wxString filename) {
|
|
wxArrayInt frames;
|
|
|
|
#ifdef __WINDOWS__
|
|
// Init vfw
|
|
AVIFileInit();
|
|
|
|
// Open file
|
|
PAVIFILE pfile;
|
|
long hr = AVIFileOpen(&pfile, filename.wc_str(), OF_SHARE_DENY_WRITE, 0);
|
|
if (hr != 0) {
|
|
AVIFileExit();
|
|
switch (hr) {
|
|
case AVIERR_BADFORMAT:
|
|
throw _T("Unable to open AVI file for reading keyframes:\nThe file is corrupted, incomplete or has an otherwise bad format.");
|
|
case AVIERR_MEMORY:
|
|
throw _T("Unable to open AVI file for reading keyframes:\nThe file could not be opened because of insufficient memory.");
|
|
case AVIERR_FILEREAD:
|
|
throw _T("Unable to open AVI file for reading keyframes:\nAn error occurred reading the file. There might be a problem with the storage media.");
|
|
case AVIERR_FILEOPEN:
|
|
throw _T("Unable to open AVI file for reading keyframes:\nThe file could not be opened. It might be in use by another application, or you do not have permission to access it.");
|
|
case REGDB_E_CLASSNOTREG:
|
|
throw _T("Unable to open AVI file for reading keyframes:\nThere is no handler installed for the file extension. This might indicate a fundameltal problem in your Video for Windows installation, and can be caused by extremely stripped Windows installations.");
|
|
default:
|
|
throw _T("Unable to open AVI file for reading keyframes:\nUnknown error.");
|
|
}
|
|
}
|
|
|
|
// Open stream
|
|
PAVISTREAM ppavi;
|
|
hr = AVIFileGetStream(pfile,&ppavi,streamtypeVIDEO,0);
|
|
if (hr != 0) {
|
|
AVIFileRelease(pfile);
|
|
AVIFileExit();
|
|
switch (hr) {
|
|
case AVIERR_NODATA:
|
|
throw _T("Unable to open AVI video stream for reading keyframes:\nThe file does not contain a usable video stream.");
|
|
case AVIERR_MEMORY:
|
|
throw _T("Unable to open AVI video stream for reading keyframes:\nNot enough memory.");
|
|
default:
|
|
throw _T("Unable to open AVI video stream for reading keyframes:\nUnknown error.");
|
|
}
|
|
|
|
}
|
|
|
|
// Get stream data
|
|
AVISTREAMINFO avis;
|
|
hr = AVIStreamInfo(ppavi,&avis,sizeof(avis));
|
|
if (hr != 0) {
|
|
AVIStreamRelease(ppavi);
|
|
AVIFileRelease(pfile);
|
|
AVIFileExit();
|
|
throw _T("Unable to read keyframes from AVI file:\nCould not get stream information.");
|
|
}
|
|
size_t frame_c = avis.dwLength;
|
|
|
|
// Loop through stream
|
|
for (size_t i=0;i<frame_c;i++) {
|
|
if (AVIStreamIsKeyFrame(ppavi,(int)i)) {
|
|
frames.Add(i);
|
|
}
|
|
}
|
|
|
|
// Clean up
|
|
AVIStreamRelease(ppavi);
|
|
AVIFileRelease(pfile);
|
|
AVIFileExit();
|
|
#endif
|
|
|
|
return frames;
|
|
}
|