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/*
* Copyright (C) 2003-2006 Gabest
* Copyright (C) 2010-2017 Hendrik Leppkes
* http://www.1f0.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
interface __declspec(uuid("01A5BBD3-FE71-487C-A2EC-F585918A8724"))
IKeyFrameInfo :
public IUnknown
{
// Get the number of (known) keyframes in the file
STDMETHOD (GetKeyFrameCount) (UINT& nKFs) = 0; // returns S_FALSE when every frame is a keyframe
// Get the times of the key frames, if available.
//
// pFormat: GUID of the time format (see http://msdn.microsoft.com/en-us/library/dd407205(v=vs.85).aspx, usually TIME_FORMAT_MEDIA_TIME)
// pKFs: Caller allocated memory for the timestamps of the keyframes (should be sizeof(REFERENCE_TIME) * nKFs at least!)
// nKF: Number of keyframes requested/returned - no more then nKFs key frames will be returned.
STDMETHOD (GetKeyFrames) (const GUID* pFormat, REFERENCE_TIME* pKFs, UINT& nKFs /* in, out*/) = 0;
};
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