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7b90f0693a
This gives Indeo3 the same behavior as other codecs when encapsulated in a container that provides bit depth information (e.g. AVI). Closes #888.
96 lines
2.4 KiB
C++
96 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/scummsys.h"
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/* Intel Indeo 3 decompressor, derived from ffmpeg.
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*
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* Original copyright note:
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* Intel Indeo 3 (IV31, IV32, etc.) video decoder for ffmpeg
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* written, produced, and directed by Alan Smithee
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*/
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#ifndef IMAGE_CODECS_INDEO3_H
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#define IMAGE_CODECS_INDEO3_H
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#include "image/codecs/codec.h"
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namespace Image {
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/**
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* Intel Indeo 3 decoder.
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*
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* Used by BMP/AVI.
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*
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* Used in video:
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* - VMDDecoder
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*/
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class Indeo3Decoder : public Codec {
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public:
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Indeo3Decoder(uint16 width, uint16 height, uint bitsPerPixel = 24);
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~Indeo3Decoder();
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const Graphics::Surface *decodeFrame(Common::SeekableReadStream &stream);
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Graphics::PixelFormat getPixelFormat() const;
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static bool isIndeo3(Common::SeekableReadStream &stream);
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private:
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Graphics::Surface *_surface;
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Graphics::PixelFormat _pixelFormat;
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static const int _corrector_type_0[24];
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static const int _corrector_type_2[8];
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static const uint32 correction[];
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static const uint32 correctionloworder[];
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static const uint32 correctionhighorder[];
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struct YUVBufs {
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byte *Ybuf;
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byte *Ubuf;
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byte *Vbuf;
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byte *the_buf;
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uint32 the_buf_size;
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uint16 y_w, y_h;
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uint16 uv_w, uv_h;
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};
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YUVBufs _iv_frame[2];
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YUVBufs *_cur_frame;
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YUVBufs *_ref_frame;
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byte *_ModPred;
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uint16 *_corrector_type;
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void buildModPred();
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void allocFrames();
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void decodeChunk(byte *cur, byte *ref, int width, int height,
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const byte *buf1, uint32 fflags2, const byte *hdr,
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const byte *buf2, int min_width_160);
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};
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} // End of namespace Image
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#endif
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