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author | Matthew Hoops | 2012-08-26 15:39:18 -0400 |
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committer | Matthew Hoops | 2012-08-26 15:41:56 -0400 |
commit | 857b92f8ffececa9c1f990d21a6a8d1630199a62 (patch) | |
tree | 420463df7bf481f8c4e0dcba9bd37e68d999b43d /video/avi_decoder.cpp | |
parent | 1d58ebe133c274643a89f2f4f0d24a2a8ab343c3 (diff) | |
parent | 18e7573dafbffdd509943c8f90f91933b17b0435 (diff) | |
download | scummvm-rg350-857b92f8ffececa9c1f990d21a6a8d1630199a62.tar.gz scummvm-rg350-857b92f8ffececa9c1f990d21a6a8d1630199a62.tar.bz2 scummvm-rg350-857b92f8ffececa9c1f990d21a6a8d1630199a62.zip |
Merge pull request #268 from clone2727/video-rewrite
VideoDecoder upgrade & partial rewrite
Diffstat (limited to 'video/avi_decoder.cpp')
-rw-r--r-- | video/avi_decoder.cpp | 554 |
1 files changed, 280 insertions, 274 deletions
diff --git a/video/avi_decoder.cpp b/video/avi_decoder.cpp index 2ea7e8d90e..09b95d38ad 100644 --- a/video/avi_decoder.cpp +++ b/video/avi_decoder.cpp @@ -42,106 +42,128 @@ namespace Video { -/* +#define UNKNOWN_HEADER(a) error("Unknown header found -- \'%s\'", tag2str(a)) + +// IDs used throughout the AVI files +// that will be handled by this player +#define ID_RIFF MKTAG('R','I','F','F') +#define ID_AVI MKTAG('A','V','I',' ') +#define ID_LIST MKTAG('L','I','S','T') +#define ID_HDRL MKTAG('h','d','r','l') +#define ID_AVIH MKTAG('a','v','i','h') +#define ID_STRL MKTAG('s','t','r','l') +#define ID_STRH MKTAG('s','t','r','h') +#define ID_VIDS MKTAG('v','i','d','s') +#define ID_AUDS MKTAG('a','u','d','s') +#define ID_MIDS MKTAG('m','i','d','s') +#define ID_TXTS MKTAG('t','x','t','s') +#define ID_JUNK MKTAG('J','U','N','K') +#define ID_STRF MKTAG('s','t','r','f') +#define ID_MOVI MKTAG('m','o','v','i') +#define ID_REC MKTAG('r','e','c',' ') +#define ID_VEDT MKTAG('v','e','d','t') +#define ID_IDX1 MKTAG('i','d','x','1') +#define ID_STRD MKTAG('s','t','r','d') +#define ID_00AM MKTAG('0','0','A','M') +//#define ID_INFO MKTAG('I','N','F','O') + +// Codec tags +#define ID_RLE MKTAG('R','L','E',' ') +#define ID_CRAM MKTAG('C','R','A','M') +#define ID_MSVC MKTAG('m','s','v','c') +#define ID_WHAM MKTAG('W','H','A','M') +#define ID_CVID MKTAG('c','v','i','d') +#define ID_IV32 MKTAG('i','v','3','2') +#define ID_DUCK MKTAG('D','U','C','K') + static byte char2num(char c) { - return (c >= 48 && c <= 57) ? c - 48 : 0; + c = tolower((byte)c); + return (c >= 'a' && c <= 'f') ? c - 'a' + 10 : c - '0'; } -static byte getStreamNum(uint32 tag) { - return char2num((char)(tag >> 24)) * 16 + char2num((char)(tag >> 16)); +static byte getStreamIndex(uint32 tag) { + return char2num((tag >> 24) & 0xFF) << 4 | char2num((tag >> 16) & 0xFF); } -*/ static uint16 getStreamType(uint32 tag) { return tag & 0xffff; } -AviDecoder::AviDecoder(Audio::Mixer *mixer, Audio::Mixer::SoundType soundType) : _mixer(mixer) { - _soundType = soundType; - - _videoCodec = NULL; +AVIDecoder::AVIDecoder(Audio::Mixer::SoundType soundType) : _soundType(soundType) { _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)); + _fileStream = 0; + memset(&_ixInfo, 0, sizeof(_ixInfo)); + memset(&_header, 0, sizeof(_header)); } -AviDecoder::~AviDecoder() { +AVIDecoder::~AVIDecoder() { close(); - delete _audHandle; } -void AviDecoder::runHandle(uint32 tag) { - assert (_fileStream); +void AVIDecoder::runHandle(uint32 tag) { + assert(_fileStream); if (_fileStream->eos()) return; - debug (3, "Decoding tag %s", tag2str(tag)); + 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)); + 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 OldIndex::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() { +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)); + debug(0, "Found LIST of type %s", tag2str(listType)); while ((_fileStream->pos() - curPos) < listSize) runHandle(_fileStream->readUint32BE()); @@ -151,12 +173,14 @@ void AviDecoder::handleList() { _decodedHeader = true; } -void AviDecoder::handleStreamHeader() { +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"); + error("Unhandled MIDI/Text stream"); + sHeader.streamHandler = _fileStream->readUint32BE(); sHeader.flags = _fileStream->readUint32LE(); sHeader.priority = _fileStream->readUint16LE(); @@ -174,63 +198,67 @@ void AviDecoder::handleStreamHeader() { 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(); + BitmapInfoHeader bmInfo; + bmInfo.size = _fileStream->readUint32LE(); + bmInfo.width = _fileStream->readUint32LE(); + bmInfo.height = _fileStream->readUint32LE(); + 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.clrUsed == 0) + bmInfo.clrUsed = 256; + + if (sHeader.streamHandler == 0) + sHeader.streamHandler = bmInfo.compression; + + AVIVideoTrack *track = new AVIVideoTrack(_header.totalFrames, sHeader, bmInfo); + + if (bmInfo.bitCount == 8) { + byte *palette = const_cast<byte *>(track->getPalette()); + 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; + track->markPaletteDirty(); } - if (!_vidsHeader.streamHandler) - _vidsHeader.streamHandler = _bmInfo.compression; + addTrack(track); } 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(); + PCMWaveFormat wvInfo; + 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; + if (wvInfo.channels == 2) + sHeader.sampleSize /= 2; + + addTrack(new AVIAudioTrack(sHeader, wvInfo, _soundType)); } // Ensure that we're at the end of the chunk _fileStream->seek(startPos + strfSize); } -bool AviDecoder::loadStream(Common::SeekableReadStream *stream) { +bool AVIDecoder::loadStream(Common::SeekableReadStream *stream) { close(); _fileStream = stream; @@ -252,74 +280,31 @@ bool AviDecoder::loadStream(Common::SeekableReadStream *stream) { 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, -1, getVolume(), getBalance()); - - 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; + error("Expected 'movi' LIST"); + } else { + error("Expected 'movi' LIST"); + } return true; } -void AviDecoder::close() { - if (!_fileStream) - return; +void AVIDecoder::close() { + VideoDecoder::close(); 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::getTime() const { - if (_audStream) - return _mixer->getSoundElapsedTime(*_audHandle); - - return FixedRateVideoDecoder::getTime(); + memset(&_ixInfo, 0, sizeof(_ixInfo)); + memset(&_header, 0, sizeof(_header)); } -const Graphics::Surface *AviDecoder::decodeNextFrame() { +void AVIDecoder::readNextPacket() { uint32 nextTag = _fileStream->readUint32BE(); if (_fileStream->eos()) - return NULL; - - if (_curFrame == -1) - _startTime = g_system->getMillis(); + return; if (nextTag == ID_LIST) { // A list of audio/video chunks @@ -327,138 +312,159 @@ const Graphics::Surface *AviDecoder::decodeNextFrame() { 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 Graphics::Surface *frame = NULL; - while (_fileStream->pos() < startPos + (int32)listSize) { - const Graphics::Surface *temp = decodeNextFrame(); - if (temp) - frame = temp; - } + error("Expected 'rec ' LIST"); - 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' || - getStreamType(nextTag) == 'iv') { - // 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 - } + // Decode chunks in the list + while (_fileStream->pos() < startPos + (int32)listSize) + readNextPacket(); - _dirtyPalette = true; + return; + } else if (nextTag == ID_JUNK || nextTag == ID_IDX1) { + runHandle(nextTag); + return; + } - // 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()); + Track *track = getTrack(getStreamIndex(nextTag)); - return NULL; -} + if (!track) + error("Cannot get track from tag '%s'", tag2str(nextTag)); -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); - case ID_IV32: - return new Indeo3Decoder(_bmInfo.width, _bmInfo.height); -#ifdef VIDEO_CODECS_TRUEMOTION1_H - case ID_DUCK: - return new TrueMotion1Decoder(_bmInfo.width, _bmInfo.height); -#endif - default: - warning ("Unknown/Unhandled compression format \'%s\'", tag2str(_vidsHeader.streamHandler)); + uint32 chunkSize = _fileStream->readUint32LE(); + Common::SeekableReadStream *chunk = _fileStream->readStream(chunkSize); + _fileStream->skip(chunkSize & 1); + + if (track->getTrackType() == Track::kTrackTypeAudio) { + if (getStreamType(nextTag) != MKTAG16('w', 'b')) + error("Invalid audio track tag '%s'", tag2str(nextTag)); + + ((AVIAudioTrack *)track)->queueSound(chunk); + } else { + AVIVideoTrack *videoTrack = (AVIVideoTrack *)track; + + if (getStreamType(nextTag) == MKTAG16('p', 'c')) { + // Palette Change + byte firstEntry = chunk->readByte(); + uint16 numEntries = chunk->readByte(); + chunk->readUint16LE(); // Reserved + + // 0 entries means all colors are going to be changed + if (numEntries == 0) + numEntries = 256; + + byte *palette = const_cast<byte *>(videoTrack->getPalette()); + + for (uint16 i = firstEntry; i < numEntries + firstEntry; i++) { + palette[i * 3] = chunk->readByte(); + palette[i * 3 + 1] = chunk->readByte(); + palette[i * 3 + 2] = chunk->readByte(); + chunk->readByte(); // Flags that don't serve us any purpose + } + + delete chunk; + videoTrack->markPaletteDirty(); + } else if (getStreamType(nextTag) == MKTAG16('d', 'b')) { + // TODO: Check if this really is uncompressed. Many videos + // falsely put compressed data in here. + error("Uncompressed AVI frame found"); + } else { + // Otherwise, assume it's a compressed frame + videoTrack->decodeFrame(chunk); + } } +} - return NULL; +AVIDecoder::AVIVideoTrack::AVIVideoTrack(int frameCount, const AVIStreamHeader &streamHeader, const BitmapInfoHeader &bitmapInfoHeader) + : _frameCount(frameCount), _vidsHeader(streamHeader), _bmInfo(bitmapInfoHeader) { + memset(_palette, 0, sizeof(_palette)); + _videoCodec = createCodec(); + _dirtyPalette = false; + _lastFrame = 0; + _curFrame = -1; } -Graphics::PixelFormat AviDecoder::getPixelFormat() const { - assert(_videoCodec); - return _videoCodec->getPixelFormat(); +AVIDecoder::AVIVideoTrack::~AVIVideoTrack() { + delete _videoCodec; } -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); +void AVIDecoder::AVIVideoTrack::decodeFrame(Common::SeekableReadStream *stream) { + if (_videoCodec) + _lastFrame = _videoCodec->decodeImage(stream); - return NULL; + delete stream; + _curFrame++; } -void AviDecoder::queueAudioBuffer(uint32 chunkSize) { - // Return if we haven't created the queue (unsupported audio format) - if (!_audStream) { - _fileStream->skip(chunkSize); - return; +Graphics::PixelFormat AVIDecoder::AVIVideoTrack::getPixelFormat() const { + if (_videoCodec) + return _videoCodec->getPixelFormat(); + + return Graphics::PixelFormat(); +} + +Codec *AVIDecoder::AVIVideoTrack::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); + case ID_IV32: + return new Indeo3Decoder(_bmInfo.width, _bmInfo.height); +#ifdef VIDEO_CODECS_TRUEMOTION1_H + case ID_DUCK: + return new TrueMotion1Decoder(_bmInfo.width, _bmInfo.height); +#endif + default: + warning("Unknown/Unhandled compression format \'%s\'", tag2str(_vidsHeader.streamHandler)); } - Common::SeekableReadStream *stream = _fileStream->readStream(chunkSize); + return 0; +} - if (_wvInfo.tag == kWaveFormatPCM) { - byte flags = 0; - if (_audsHeader.sampleSize == 2) - flags |= Audio::FLAG_16BITS | Audio::FLAG_LITTLE_ENDIAN; - else - flags |= Audio::FLAG_UNSIGNED; +AVIDecoder::AVIAudioTrack::AVIAudioTrack(const AVIStreamHeader &streamHeader, const PCMWaveFormat &waveFormat, Audio::Mixer::SoundType soundType) + : _audsHeader(streamHeader), _wvInfo(waveFormat), _soundType(soundType) { + _audStream = createAudioStream(); +} - if (_wvInfo.channels == 2) - flags |= Audio::FLAG_STEREO; +AVIDecoder::AVIAudioTrack::~AVIAudioTrack() { + delete _audStream; +} - _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); +void AVIDecoder::AVIAudioTrack::queueSound(Common::SeekableReadStream *stream) { + if (_audStream) { + 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, stream->size(), Audio::kADPCMDK3, _wvInfo.samplesPerSec, _wvInfo.channels, _wvInfo.blockAlign), DisposeAfterUse::YES); + } + } else { + delete stream; } } -void AviDecoder::updateVolume() { - if (g_system->getMixer()->isSoundHandleActive(*_audHandle)) - g_system->getMixer()->setChannelVolume(*_audHandle, getVolume()); +Audio::AudioStream *AVIDecoder::AVIAudioTrack::getAudioStream() const { + return _audStream; } -void AviDecoder::updateBalance() { - if (g_system->getMixer()->isSoundHandleActive(*_audHandle)) - g_system->getMixer()->setChannelBalance(*_audHandle, getBalance()); +Audio::QueuingAudioStream *AVIDecoder::AVIAudioTrack::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 0; } } // End of namespace Video |