Aegisub/aegisub/ffmpegsource_common.cpp

// Copyright (c) 2008, Karl Blomster
// 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
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// 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
//

#ifdef WITH_FFMPEGSOURCE

///////////
// Headers
#include "ffmpegsource_common.h"

///////////////
// Update indexing progress
int FFMS_CC FFmpegSourceProvider::UpdateIndexingProgress(int State, int64_t Current, int64_t Total, void *Private) {
	IndexingProgressDialog *Progress = (IndexingProgressDialog *)Private;

	if (Progress->IndexingCanceled)
		return 1;

	// noone cares about a little bit of a rounding error here anyway
	Progress->ProgressDialog->SetProgress((1000*Current)/Total, 1000);
	
	return 0;
}


///////////
// Do indexing
FrameIndex *FFmpegSourceProvider::DoIndexing(FrameIndex *Index, wxString FileNameWX, wxString CacheName, int Trackmask, bool IgnoreDecodeErrors) {
	char FFMSErrMsg[1024];
	unsigned MsgSize = sizeof(FFMSErrMsg);
	wxString MsgString;

	// set up progress dialog callback
	IndexingProgressDialog Progress;
	Progress.IndexingCanceled = false;
	Progress.ProgressDialog = new DialogProgress(NULL, _("Indexing"), &Progress.IndexingCanceled, _("Indexing timecodes and frame/sample data"), 0, 1);
	Progress.ProgressDialog->Show();
	Progress.ProgressDialog->SetProgress(0,1);

	// index all audio tracks
	Index = FFMS_MakeIndex(FileNameWX.char_str(), Trackmask, FFMSTrackMaskNone, NULL, IgnoreDecodeErrors, FFmpegSourceProvider::UpdateIndexingProgress, &Progress, FFMSErrMsg, MsgSize);
	if (!Index) {
		Progress.ProgressDialog->Destroy();
		wxString temp(FFMSErrMsg, wxConvUTF8);
		MsgString << _T("failed to index: ") << temp;
		throw MsgString;
	}
	Progress.ProgressDialog->Destroy();

	// write index to disk for later use
	if (FFMS_WriteIndex(CacheName.char_str(), Index, FFMSErrMsg, MsgSize)) {
		wxString temp(FFMSErrMsg, wxConvUTF8);
		MsgString << _T("failed to write index: ") << temp;
		throw MsgString;
	}

	return Index;
}

#endif WITH_FFMPEGSOURCE