| 1 | /* $Id: RecordingInternals.cpp 99739 2023-05-11 01:01:08Z vboxsync $ */
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| 2 | /** @file
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| 3 | * Recording internals code.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2012-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 | #include "RecordingInternals.h"
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| 29 |
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| 30 | #include <iprt/assert.h>
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| 31 | #include <iprt/mem.h>
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| 32 |
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| 33 | #ifdef VBOX_WITH_AUDIO_RECORDING
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| 34 |
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| 35 | /**
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| 36 | * Initializes a recording frame.
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| 37 | *
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| 38 | * @param pFrame Pointer to video frame to initialize.
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| 39 | * @param w Width (in pixel) of video frame.
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| 40 | * @param h Height (in pixel) of video frame.
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| 41 | * @param uBPP Bits per pixel (BPP).
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| 42 | * @param enmPixelFmt Pixel format to use.
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| 43 | */
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| 44 | int RecordingVideoFrameInit(PRECORDINGVIDEOFRAME pFrame, int w, int h, uint8_t uBPP, RECORDINGPIXELFMT enmPixelFmt)
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| 45 | {
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| 46 | /* Calculate bytes per pixel and set pixel format. */
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| 47 | const unsigned uBytesPerPixel = uBPP / 8;
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| 48 | const size_t cbRGBBuf = w * h * uBytesPerPixel;
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| 49 | AssertReturn(cbRGBBuf, VERR_INVALID_PARAMETER);
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| 50 |
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| 51 | pFrame->pu8RGBBuf = (uint8_t *)RTMemAlloc(cbRGBBuf);
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| 52 | AssertPtrReturn(pFrame->pu8RGBBuf, VERR_NO_MEMORY);
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| 53 | pFrame->cbRGBBuf = cbRGBBuf;
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| 54 |
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| 55 | pFrame->uX = 0;
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| 56 | pFrame->uY = 0;
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| 57 | pFrame->uWidth = w;
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| 58 | pFrame->uHeight = h;
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| 59 | pFrame->enmPixelFmt = enmPixelFmt;
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| 60 | pFrame->uBPP = uBPP;
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| 61 | pFrame->uBytesPerLine = w * uBytesPerPixel;
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| 62 |
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| 63 | return VINF_SUCCESS;
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| 64 | }
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| 65 |
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| 66 | /**
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| 67 | * Destroys a recording audio frame.
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| 68 | *
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| 69 | * @param pFrame Pointer to audio frame to destroy.
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| 70 | */
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| 71 | static void recordingAudioFrameDestroy(PRECORDINGAUDIOFRAME pFrame)
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| 72 | {
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| 73 | if (pFrame->pvBuf)
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| 74 | {
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| 75 | Assert(pFrame->cbBuf);
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| 76 | RTMemFree(pFrame->pvBuf);
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| 77 | pFrame->cbBuf = 0;
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| 78 | }
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| 79 | }
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| 80 |
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| 81 | /**
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| 82 | * Frees a previously allocated recording audio frame.
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| 83 | *
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| 84 | * @param pFrame Audio frame to free. The pointer will be invalid after return.
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| 85 | */
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| 86 | void RecordingAudioFrameFree(PRECORDINGAUDIOFRAME pFrame)
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| 87 | {
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| 88 | if (!pFrame)
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| 89 | return;
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| 90 |
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| 91 | recordingAudioFrameDestroy(pFrame);
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| 92 |
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| 93 | RTMemFree(pFrame);
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| 94 | pFrame = NULL;
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| 95 | }
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| 96 |
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| 97 | #endif /* VBOX_WITH_AUDIO_RECORDING */
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| 98 |
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| 99 | /**
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| 100 | * Destroys a recording video frame.
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| 101 | *
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| 102 | * @param pFrame Pointer to video frame to destroy.
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| 103 | */
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| 104 | void RecordingVideoFrameDestroy(PRECORDINGVIDEOFRAME pFrame)
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| 105 | {
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| 106 | if (pFrame->pu8RGBBuf)
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| 107 | {
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| 108 | Assert(pFrame->cbRGBBuf);
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| 109 | RTMemFree(pFrame->pu8RGBBuf);
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| 110 | pFrame->cbRGBBuf = 0;
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| 111 | }
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| 112 | }
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| 113 |
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| 114 | /**
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| 115 | * Frees a recording video frame.
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| 116 | *
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| 117 | * @param pFrame Pointer to video frame to free. The pointer will be invalid after return.
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| 118 | */
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| 119 | void RecordingVideoFrameFree(PRECORDINGVIDEOFRAME pFrame)
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| 120 | {
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| 121 | if (!pFrame)
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| 122 | return;
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| 123 |
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| 124 | RecordingVideoFrameDestroy(pFrame);
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| 125 |
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| 126 | RTMemFree(pFrame);
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| 127 | }
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| 128 |
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| 129 | /**
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| 130 | * Frees a recording frame.
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| 131 | *
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| 132 | * @param pFrame Pointer to recording frame to free. The pointer will be invalid after return.
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| 133 | */
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| 134 | void RecordingFrameFree(PRECORDINGFRAME pFrame)
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| 135 | {
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| 136 | if (!pFrame)
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| 137 | return;
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| 138 |
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| 139 | switch (pFrame->enmType)
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| 140 | {
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| 141 | #ifdef VBOX_WITH_AUDIO_RECORDING
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| 142 | case RECORDINGFRAME_TYPE_AUDIO:
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| 143 | recordingAudioFrameDestroy(&pFrame->Audio);
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| 144 | break;
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| 145 | #endif
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| 146 | case RECORDINGFRAME_TYPE_VIDEO:
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| 147 | RecordingVideoFrameDestroy(&pFrame->Video);
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| 148 | break;
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| 149 |
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| 150 | default:
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| 151 | AssertFailed();
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| 152 | break;
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| 153 | }
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| 154 |
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| 155 | RTMemFree(pFrame);
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| 156 | pFrame = NULL;
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| 157 | }
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| 158 |
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