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| 1 | +// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. |
| 2 | +// If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/. |
| 3 | + |
| 4 | + |
| 5 | +#pragma endian little |
| 6 | +#pragma magic [42 49 4B] @ 0x00 |
| 7 | +#pragma MIME video/vnd.radgamettools.bink |
| 8 | + |
| 9 | +#pragma author Xavier "XJDHDR" du Hecquet de Rauville |
| 10 | +#pragma description Bink Video Container - RAD Game Tools |
| 11 | + |
| 12 | + |
| 13 | +// GLOBALS |
| 14 | +u32 CurrentFrame = 0; |
| 15 | + |
| 16 | + |
| 17 | +// ENUMS |
| 18 | +enum WidthHeightScaling : u8 |
| 19 | +{ |
| 20 | + NoScaling = 0, |
| 21 | + HeightDoubled = 1, |
| 22 | + HeightInterlaced = 2, |
| 23 | + WidthDoubled = 3, |
| 24 | + WidthHeightDoubled = 4, |
| 25 | + WidthHeightInterlaced = 5, |
| 26 | +}; |
| 27 | + |
| 28 | +enum AudioAlgorithm : bool |
| 29 | +{ |
| 30 | + DCT = 0, |
| 31 | + FFT = 1, |
| 32 | +}; |
| 33 | + |
| 34 | + |
| 35 | +// BITFIELDS |
| 36 | +bitfield VideoFlags |
| 37 | +{ |
| 38 | + Unknown1 : 16; |
| 39 | + bool Greyscale : 1; |
| 40 | + Unknown2 : 2; |
| 41 | + bool HasAlphaPLane : 1; |
| 42 | + Unknown3 : 7; |
| 43 | + WidthHeightScaling Scaling : 4; |
| 44 | +}; |
| 45 | + |
| 46 | +bitfield AudioPropertyFlags |
| 47 | +{ |
| 48 | + Unknown1 : 11; |
| 49 | + AudioAlgorithm Algorithm : 1; |
| 50 | + bool IsStereo : 1; |
| 51 | + bool HasAlphaPLane : 1; |
| 52 | + Unknown2 : 2; |
| 53 | +}; |
| 54 | + |
| 55 | +fn maskFirstBit(u32 originalValue) { |
| 56 | + return (originalValue & 0xFFFFFFFE); |
| 57 | +}; |
| 58 | + |
| 59 | +bitfield FrameAddressData { |
| 60 | + bool IsKeyframe: 1 [[no_unique_address]]; |
| 61 | + FrameAddress: 32 [[transform("maskFirstBit")]]; |
| 62 | +}; |
| 63 | + |
| 64 | + |
| 65 | +// STRUCTS |
| 66 | +struct AudioChannelData |
| 67 | +{ |
| 68 | + u16 Unknown; |
| 69 | + u16 NotAuthoritativeAudioChannelQty; |
| 70 | +}; |
| 71 | + |
| 72 | +struct AudioChannelProperties |
| 73 | +{ |
| 74 | + u16 SampleRate; |
| 75 | + AudioPropertyFlags NotAuthoritativeAudioChannelQty; |
| 76 | +}; |
| 77 | + |
| 78 | +struct BinkHeader |
| 79 | +{ |
| 80 | + char MagicNumber[3]; |
| 81 | + char BinkVersion; |
| 82 | + u32 SizeOfRemainingBytes; |
| 83 | + u32 NumberOfFrames; |
| 84 | + u32 LargestFrameSize; |
| 85 | + u32 NumberOfFramesAgain; |
| 86 | + u32 VideoFrameWidth; |
| 87 | + u32 VideoFrameHeight; |
| 88 | + u32 VideoFPSDividend; |
| 89 | + u32 VideoFPSDivisor; |
| 90 | + VideoFlags VideoFlags; |
| 91 | + u32 AudioTrackQty; |
| 92 | + AudioChannelData AudioChannelData[AudioTrackQty]; |
| 93 | + AudioChannelProperties AudioChannelProperties[AudioTrackQty]; |
| 94 | + u32 AudioTrackIDs[AudioTrackQty]; |
| 95 | +}; |
| 96 | + |
| 97 | +struct BinkAudioTrack |
| 98 | +{ |
| 99 | + u32 LengthOfRemainingTrackData; |
| 100 | + |
| 101 | + if (LengthOfRemainingTrackData > 0) |
| 102 | + { |
| 103 | + u32 SamplesQty; |
| 104 | + u8 AudioPacket[LengthOfRemainingTrackData - 4]; |
| 105 | + } |
| 106 | +}; |
| 107 | + |
| 108 | +fn calculateVideoPacketSize(BinkHeader header, ref FrameAddressData frameAddresses, ref BinkAudioTrack audioTracks) |
| 109 | +{ |
| 110 | + u32 thisFrameTotalSize = frameAddresses[CurrentFrame + 1].FrameAddress - frameAddresses[CurrentFrame].FrameAddress; |
| 111 | + |
| 112 | + u32 sizeOfAllAudioTracks = 0; |
| 113 | + for (u8 i = 0, i < header.AudioTrackQty, i += 1) |
| 114 | + { |
| 115 | + sizeOfAllAudioTracks += audioTracks[i].LengthOfRemainingTrackData + 4; |
| 116 | + } |
| 117 | + |
| 118 | + u32 videoPacketSize = thisFrameTotalSize - sizeOfAllAudioTracks; |
| 119 | + return videoPacketSize; |
| 120 | +}; |
| 121 | + |
| 122 | +struct BinkFrame |
| 123 | +{ |
| 124 | + BinkAudioTrack AudioTracks[parent.Header.AudioTrackQty]; |
| 125 | + u8 VideoPacket[calculateVideoPacketSize(parent.Header, parent.FrameAddresses, AudioTracks)]; |
| 126 | + |
| 127 | + CurrentFrame += 1; |
| 128 | + $ = parent.FrameAddresses[CurrentFrame].FrameAddress; |
| 129 | +}; |
| 130 | + |
| 131 | +struct BinkFile |
| 132 | +{ |
| 133 | + BinkHeader Header; |
| 134 | + FrameAddressData FrameAddresses[Header.NumberOfFrames + 1]; |
| 135 | + |
| 136 | + $ = FrameAddresses[0].FrameAddress; |
| 137 | + |
| 138 | + BinkFrame Frames[Header.NumberOfFrames]; |
| 139 | +}; |
| 140 | + |
| 141 | + |
| 142 | +// ENTRYPOINT |
| 143 | +BinkFile binkFile @ 0x0; |
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