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/* $Id$ */
/** @file
* Recording internals code.
*/
/*
* Copyright (C) 2012-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* 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, in version 3 of the
* License.
*
* 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, see <https://www.gnu.org/licenses>.
*
* SPDX-License-Identifier: GPL-3.0-only
*/
#include "RecordingInternals.h"
#include <iprt/assert.h>
#include <iprt/mem.h>
#ifdef VBOX_WITH_AUDIO_RECORDING
/**
* Initializes a recording frame.
*
* @param pFrame Pointer to video frame to initialize.
* @param w Width (in pixel) of video frame.
* @param h Height (in pixel) of video frame.
* @param uBPP Bits per pixel (BPP).
* @param enmPixelFmt Pixel format to use.
*/
int RecordingVideoFrameInit(PRECORDINGVIDEOFRAME pFrame, int w, int h, uint8_t uBPP, RECORDINGPIXELFMT enmPixelFmt)
{
/* Calculate bytes per pixel and set pixel format. */
const unsigned uBytesPerPixel = uBPP / 8;
const size_t cbRGBBuf = w * h * uBytesPerPixel;
AssertReturn(cbRGBBuf, VERR_INVALID_PARAMETER);
pFrame->pu8RGBBuf = (uint8_t *)RTMemAlloc(cbRGBBuf);
AssertPtrReturn(pFrame->pu8RGBBuf, VERR_NO_MEMORY);
pFrame->cbRGBBuf = cbRGBBuf;
pFrame->uX = 0;
pFrame->uY = 0;
pFrame->uWidth = w;
pFrame->uHeight = h;
pFrame->enmPixelFmt = enmPixelFmt;
pFrame->uBPP = uBPP;
pFrame->uBytesPerLine = w * uBytesPerPixel;
return VINF_SUCCESS;
}
/**
* Destroys a recording audio frame.
*
* @param pFrame Pointer to audio frame to destroy.
*/
static void recordingAudioFrameDestroy(PRECORDINGAUDIOFRAME pFrame)
{
if (pFrame->pvBuf)
{
Assert(pFrame->cbBuf);
RTMemFree(pFrame->pvBuf);
pFrame->cbBuf = 0;
}
}
/**
* Frees a previously allocated recording audio frame.
*
* @param pFrame Audio frame to free. The pointer will be invalid after return.
*/
void RecordingAudioFrameFree(PRECORDINGAUDIOFRAME pFrame)
{
if (!pFrame)
return;
recordingAudioFrameDestroy(pFrame);
RTMemFree(pFrame);
pFrame = NULL;
}
#endif /* VBOX_WITH_AUDIO_RECORDING */
/**
* Destroys a recording video frame.
*
* @param pFrame Pointer to video frame to destroy.
*/
void RecordingVideoFrameDestroy(PRECORDINGVIDEOFRAME pFrame)
{
if (pFrame->pu8RGBBuf)
{
Assert(pFrame->cbRGBBuf);
RTMemFree(pFrame->pu8RGBBuf);
pFrame->cbRGBBuf = 0;
}
}
/**
* Frees a recording video frame.
*
* @param pFrame Pointer to video frame to free. The pointer will be invalid after return.
*/
void RecordingVideoFrameFree(PRECORDINGVIDEOFRAME pFrame)
{
if (!pFrame)
return;
RecordingVideoFrameDestroy(pFrame);
RTMemFree(pFrame);
}
/**
* Frees a recording frame.
*
* @param pFrame Pointer to recording frame to free. The pointer will be invalid after return.
*/
void RecordingFrameFree(PRECORDINGFRAME pFrame)
{
if (!pFrame)
return;
switch (pFrame->enmType)
{
#ifdef VBOX_WITH_AUDIO_RECORDING
case RECORDINGFRAME_TYPE_AUDIO:
recordingAudioFrameDestroy(&pFrame->Audio);
break;
#endif
case RECORDINGFRAME_TYPE_VIDEO:
RecordingVideoFrameDestroy(&pFrame->Video);
break;
default:
AssertFailed();
break;
}
RTMemFree(pFrame);
pFrame = NULL;
}
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