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Diffstat (limited to 'graphics/video/avi_decoder.cpp')
| -rw-r--r-- | graphics/video/avi_decoder.cpp | 459 |
1 files changed, 0 insertions, 459 deletions
diff --git a/graphics/video/avi_decoder.cpp b/graphics/video/avi_decoder.cpp deleted file mode 100644 index ed0b063147..0000000000 --- a/graphics/video/avi_decoder.cpp +++ /dev/null @@ -1,459 +0,0 @@ -/* ScummVM - Graphic Adventure Engine - * - * ScummVM is the legal property of its developers, whose names - * are too numerous to list here. Please refer to the COPYRIGHT - * file distributed with this source distribution. - * - * 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. - * - * $URL$ - * $Id$ - * - */ - -#include "common/endian.h" -#include "common/file.h" -#include "common/stream.h" -#include "common/events.h" - -#include "sound/audiostream.h" -#include "sound/mixer.h" - -#include "graphics/video/avi_decoder.h" - -// Audio Codecs -#include "sound/decoders/adpcm.h" -#include "sound/decoders/raw.h" - -// Video Codecs -#include "graphics/video/codecs/cinepak.h" -#include "graphics/video/codecs/indeo3.h" -#include "graphics/video/codecs/msvideo1.h" -#include "graphics/video/codecs/msrle.h" -#include "graphics/video/codecs/truemotion1.h" - -namespace Graphics { - -/* -static byte char2num(char c) { - return (c >= 48 && c <= 57) ? c - 48 : 0; -} - -static byte getStreamNum(uint32 tag) { - return char2num((char)(tag >> 24)) * 16 + char2num((char)(tag >> 16)); -} -*/ - -static uint16 getStreamType(uint32 tag) { - return tag & 0xffff; -} - -AviDecoder::AviDecoder(Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) : _mixer(mixer) { - _soundType = soundType; - - _videoCodec = NULL; - _decodedHeader = false; - _audStream = NULL; - _fileStream = NULL; - _audHandle = new Audio::SoundHandle(); - _dirtyPalette = false; - memset(_palette, 0, sizeof(_palette)); - memset(&_wvInfo, 0, sizeof(PCMWAVEFORMAT)); - memset(&_bmInfo, 0, sizeof(BITMAPINFOHEADER)); - memset(&_vidsHeader, 0, sizeof(AVIStreamHeader)); - memset(&_audsHeader, 0, sizeof(AVIStreamHeader)); - memset(&_ixInfo, 0, sizeof(AVIOLDINDEX)); -} - -AviDecoder::~AviDecoder() { - close(); - delete _audHandle; -} - -void AviDecoder::runHandle(uint32 tag) { - assert (_fileStream); - if (_fileStream->eos()) - return; - - debug (3, "Decoding tag %s", tag2str(tag)); - - switch (tag) { - case ID_RIFF: - /*_filesize = */_fileStream->readUint32LE(); - if (_fileStream->readUint32BE() != ID_AVI) - error("RIFF file is not an AVI video"); - break; - case ID_LIST: - handleList(); - break; - case ID_AVIH: - _header.size = _fileStream->readUint32LE(); - _header.microSecondsPerFrame = _fileStream->readUint32LE(); - _header.maxBytesPerSecond = _fileStream->readUint32LE(); - _header.padding = _fileStream->readUint32LE(); - _header.flags = _fileStream->readUint32LE(); - _header.totalFrames = _fileStream->readUint32LE(); - _header.initialFrames = _fileStream->readUint32LE(); - _header.streams = _fileStream->readUint32LE(); - _header.bufferSize = _fileStream->readUint32LE(); - _header.width = _fileStream->readUint32LE(); - _header.height = _fileStream->readUint32LE(); - //Ignore 16 bytes of reserved data - _fileStream->skip(16); - break; - case ID_STRH: - handleStreamHeader(); - break; - case ID_STRD: // Extra stream info, safe to ignore - case ID_VEDT: // Unknown, safe to ignore - case ID_JUNK: // Alignment bytes, should be ignored - { - uint32 junkSize = _fileStream->readUint32LE(); - _fileStream->skip(junkSize + (junkSize & 1)); // Alignment - } break; - case ID_IDX1: - _ixInfo.size = _fileStream->readUint32LE(); - _ixInfo.indices = new AVIOLDINDEX::Index[_ixInfo.size / 16]; - debug (0, "%d Indices", (_ixInfo.size / 16)); - for (uint32 i = 0; i < (_ixInfo.size / 16); i++) { - _ixInfo.indices[i].id = _fileStream->readUint32BE(); - _ixInfo.indices[i].flags = _fileStream->readUint32LE(); - _ixInfo.indices[i].offset = _fileStream->readUint32LE(); - _ixInfo.indices[i].size = _fileStream->readUint32LE(); - debug (0, "Index %d == Tag \'%s\', Offset = %d, Size = %d", i, tag2str(_ixInfo.indices[i].id), _ixInfo.indices[i].offset, _ixInfo.indices[i].size); - } - break; - default: - error ("Unknown tag \'%s\' found", tag2str(tag)); - } -} - -void AviDecoder::handleList() { - uint32 listSize = _fileStream->readUint32LE() - 4; // Subtract away listType's 4 bytes - uint32 listType = _fileStream->readUint32BE(); - uint32 curPos = _fileStream->pos(); - - debug (0, "Found LIST of type %s", tag2str(listType)); - - while ((_fileStream->pos() - curPos) < listSize) - runHandle(_fileStream->readUint32BE()); - - // We now have all the header data - if (listType == ID_HDRL) - _decodedHeader = true; -} - -void AviDecoder::handleStreamHeader() { - AVIStreamHeader sHeader; - sHeader.size = _fileStream->readUint32LE(); - sHeader.streamType = _fileStream->readUint32BE(); - if (sHeader.streamType == ID_MIDS || sHeader.streamType == ID_TXTS) - error ("Unhandled MIDI/Text stream"); - sHeader.streamHandler = _fileStream->readUint32BE(); - sHeader.flags = _fileStream->readUint32LE(); - sHeader.priority = _fileStream->readUint16LE(); - sHeader.language = _fileStream->readUint16LE(); - sHeader.initialFrames = _fileStream->readUint32LE(); - sHeader.scale = _fileStream->readUint32LE(); - sHeader.rate = _fileStream->readUint32LE(); - sHeader.start = _fileStream->readUint32LE(); - sHeader.length = _fileStream->readUint32LE(); - sHeader.bufferSize = _fileStream->readUint32LE(); - sHeader.quality = _fileStream->readUint32LE(); - sHeader.sampleSize = _fileStream->readUint32LE(); - - _fileStream->skip(sHeader.size - 48); // Skip over the remainder of the chunk (frame) - - if (_fileStream->readUint32BE() != ID_STRF) - error("Could not find STRF tag"); - uint32 strfSize = _fileStream->readUint32LE(); - uint32 startPos = _fileStream->pos(); - - if (sHeader.streamType == ID_VIDS) { - _vidsHeader = sHeader; - - _bmInfo.size = _fileStream->readUint32LE(); - _bmInfo.width = _fileStream->readUint32LE(); - assert (_header.width == _bmInfo.width); - _bmInfo.height = _fileStream->readUint32LE(); - assert (_header.height == _bmInfo.height); - _bmInfo.planes = _fileStream->readUint16LE(); - _bmInfo.bitCount = _fileStream->readUint16LE(); - _bmInfo.compression = _fileStream->readUint32BE(); - _bmInfo.sizeImage = _fileStream->readUint32LE(); - _bmInfo.xPelsPerMeter = _fileStream->readUint32LE(); - _bmInfo.yPelsPerMeter = _fileStream->readUint32LE(); - _bmInfo.clrUsed = _fileStream->readUint32LE(); - _bmInfo.clrImportant = _fileStream->readUint32LE(); - - if (_bmInfo.bitCount == 8) { - if (_bmInfo.clrUsed == 0) - _bmInfo.clrUsed = 256; - - for (uint32 i = 0; i < _bmInfo.clrUsed; i++) { - _palette[i * 3 + 2] = _fileStream->readByte(); - _palette[i * 3 + 1] = _fileStream->readByte(); - _palette[i * 3] = _fileStream->readByte(); - _fileStream->readByte(); - } - - _dirtyPalette = true; - } - - if (!_vidsHeader.streamHandler) - _vidsHeader.streamHandler = _bmInfo.compression; - } else if (sHeader.streamType == ID_AUDS) { - _audsHeader = sHeader; - - _wvInfo.tag = _fileStream->readUint16LE(); - _wvInfo.channels = _fileStream->readUint16LE(); - _wvInfo.samplesPerSec = _fileStream->readUint32LE(); - _wvInfo.avgBytesPerSec = _fileStream->readUint32LE(); - _wvInfo.blockAlign = _fileStream->readUint16LE(); - _wvInfo.size = _fileStream->readUint16LE(); - - // AVI seems to treat the sampleSize as including the second - // channel as well, so divide for our sake. - if (_wvInfo.channels == 2) - _audsHeader.sampleSize /= 2; - } - - // Ensure that we're at the end of the chunk - _fileStream->seek(startPos + strfSize); -} - -bool AviDecoder::load(Common::SeekableReadStream *stream) { - close(); - - _fileStream = stream; - _decodedHeader = false; - - // Read chunks until we have decoded the header - while (!_decodedHeader) - runHandle(_fileStream->readUint32BE()); - - uint32 nextTag = _fileStream->readUint32BE(); - - // Throw out any JUNK section - if (nextTag == ID_JUNK) { - runHandle(ID_JUNK); - nextTag = _fileStream->readUint32BE(); - } - - // Ignore the 'movi' LIST - if (nextTag == ID_LIST) { - _fileStream->readUint32BE(); // Skip size - if (_fileStream->readUint32BE() != ID_MOVI) - error ("Expected 'movi' LIST"); - } else - error ("Expected 'movi' LIST"); - - // Now, create the codec - _videoCodec = createCodec(); - - // Initialize the video stuff too - _audStream = createAudioStream(); - if (_audStream) - _mixer->playStream(_soundType, _audHandle, _audStream); - - debug (0, "Frames = %d, Dimensions = %d x %d", _header.totalFrames, _header.width, _header.height); - debug (0, "Frame Rate = %d", _vidsHeader.rate / _vidsHeader.scale); - if (_wvInfo.samplesPerSec != 0) - debug (0, "Sound Rate = %d", _wvInfo.samplesPerSec); - debug (0, "Video Codec = \'%s\'", tag2str(_vidsHeader.streamHandler)); - - if (!_videoCodec) - return false; - - return true; -} - -void AviDecoder::close() { - if (!_fileStream) - return; - - delete _fileStream; - _fileStream = 0; - - // Deinitialize sound - _mixer->stopHandle(*_audHandle); - _audStream = 0; - - _decodedHeader = false; - - delete _videoCodec; - _videoCodec = 0; - - delete[] _ixInfo.indices; - _ixInfo.indices = 0; - - memset(_palette, 0, sizeof(_palette)); - memset(&_wvInfo, 0, sizeof(PCMWAVEFORMAT)); - memset(&_bmInfo, 0, sizeof(BITMAPINFOHEADER)); - memset(&_vidsHeader, 0, sizeof(AVIStreamHeader)); - memset(&_audsHeader, 0, sizeof(AVIStreamHeader)); - memset(&_ixInfo, 0, sizeof(AVIOLDINDEX)); - - reset(); -} - -uint32 AviDecoder::getElapsedTime() const { - if (_audStream) - return _mixer->getSoundElapsedTime(*_audHandle); - - return VideoDecoder::getElapsedTime(); -} - -const Surface *AviDecoder::decodeNextFrame() { - uint32 nextTag = _fileStream->readUint32BE(); - - if (_fileStream->eos()) - return NULL; - - if (_curFrame == -1) - _startTime = g_system->getMillis(); - - if (nextTag == ID_LIST) { - // A list of audio/video chunks - uint32 listSize = _fileStream->readUint32LE() - 4; - int32 startPos = _fileStream->pos(); - - if (_fileStream->readUint32BE() != ID_REC) - error ("Expected 'rec ' LIST"); - - // Decode chunks in the list and see if we get a frame - const Surface *frame = NULL; - while (_fileStream->pos() < startPos + (int32)listSize) { - const Surface *temp = decodeNextFrame(); - if (temp) - frame = temp; - } - - return frame; - } else if (getStreamType(nextTag) == 'wb') { - // Audio Chunk - uint32 chunkSize = _fileStream->readUint32LE(); - queueAudioBuffer(chunkSize); - _fileStream->skip(chunkSize & 1); // Alignment - } else if (getStreamType(nextTag) == 'dc' || getStreamType(nextTag) == 'id' || - getStreamType(nextTag) == 'AM' || getStreamType(nextTag) == '32') { - // Compressed Frame - _curFrame++; - uint32 chunkSize = _fileStream->readUint32LE(); - - if (chunkSize == 0) // Keep last frame on screen - return NULL; - - Common::SeekableReadStream *frameData = _fileStream->readStream(chunkSize); - const Graphics::Surface *surface = _videoCodec->decodeImage(frameData); - delete frameData; - _fileStream->skip(chunkSize & 1); // Alignment - return surface; - } else if (getStreamType(nextTag) == 'pc') { - // Palette Change - _fileStream->readUint32LE(); // Chunk size, not needed here - byte firstEntry = _fileStream->readByte(); - uint16 numEntries = _fileStream->readByte(); - _fileStream->readUint16LE(); // Reserved - - // 0 entries means all colors are going to be changed - if (numEntries == 0) - numEntries = 256; - - for (uint16 i = firstEntry; i < numEntries + firstEntry; i++) { - _palette[i * 3] = _fileStream->readByte(); - _palette[i * 3 + 1] = _fileStream->readByte(); - _palette[i * 3 + 2] = _fileStream->readByte(); - _fileStream->readByte(); // Flags that don't serve us any purpose - } - - _dirtyPalette = true; - - // No alignment necessary. It's always even. - } else if (nextTag == ID_JUNK) { - runHandle(ID_JUNK); - } else if (nextTag == ID_IDX1) { - runHandle(ID_IDX1); - } else - error("Tag = \'%s\', %d", tag2str(nextTag), _fileStream->pos()); - - return NULL; -} - -Codec *AviDecoder::createCodec() { - switch (_vidsHeader.streamHandler) { - case ID_CRAM: - case ID_MSVC: - case ID_WHAM: - return new MSVideo1Decoder(_bmInfo.width, _bmInfo.height, _bmInfo.bitCount); - case ID_RLE: - return new MSRLEDecoder(_bmInfo.width, _bmInfo.height, _bmInfo.bitCount); - case ID_CVID: - return new CinepakDecoder(_bmInfo.bitCount); -#ifdef USE_INDEO3 - case ID_IV32: - return new Indeo3Decoder(_bmInfo.width, _bmInfo.height); -#endif -#ifdef GRAPHICS_TRUEMOTION1_H - case ID_DUCK: - return new TrueMotion1Decoder(_bmInfo.width, _bmInfo.height); -#endif - default: - warning ("Unknown/Unhandled compression format \'%s\'", tag2str(_vidsHeader.streamHandler)); - } - - return NULL; -} - -PixelFormat AviDecoder::getPixelFormat() const { - assert(_videoCodec); - return _videoCodec->getPixelFormat(); -} - -Audio::QueuingAudioStream *AviDecoder::createAudioStream() { - if (_wvInfo.tag == kWaveFormatPCM || _wvInfo.tag == kWaveFormatDK3) - return Audio::makeQueuingAudioStream(_wvInfo.samplesPerSec, _wvInfo.channels == 2); - else if (_wvInfo.tag != kWaveFormatNone) // No sound - warning("Unsupported AVI audio format %d", _wvInfo.tag); - - return NULL; -} - -void AviDecoder::queueAudioBuffer(uint32 chunkSize) { - // Return if we haven't created the queue (unsupported audio format) - if (!_audStream) { - _fileStream->skip(chunkSize); - return; - } - - Common::SeekableReadStream *stream = _fileStream->readStream(chunkSize); - - if (_wvInfo.tag == kWaveFormatPCM) { - byte flags = 0; - if (_audsHeader.sampleSize == 2) - flags |= Audio::FLAG_16BITS | Audio::FLAG_LITTLE_ENDIAN; - else - flags |= Audio::FLAG_UNSIGNED; - - if (_wvInfo.channels == 2) - flags |= Audio::FLAG_STEREO; - - _audStream->queueAudioStream(Audio::makeRawStream(stream, _wvInfo.samplesPerSec, flags, DisposeAfterUse::YES), DisposeAfterUse::YES); - } else if (_wvInfo.tag == kWaveFormatDK3) { - _audStream->queueAudioStream(Audio::makeADPCMStream(stream, DisposeAfterUse::YES, chunkSize, Audio::kADPCMDK3, _wvInfo.samplesPerSec, _wvInfo.channels, _wvInfo.blockAlign), DisposeAfterUse::YES); - } -} - -} // End of namespace Graphics |