diff options
Diffstat (limited to 'graphics')
-rw-r--r-- | graphics/video/coktel_decoder.cpp | 240 | ||||
-rw-r--r-- | graphics/video/coktel_decoder.h | 15 |
2 files changed, 249 insertions, 6 deletions
diff --git a/graphics/video/coktel_decoder.cpp b/graphics/video/coktel_decoder.cpp index f68cf29228..8550325a29 100644 --- a/graphics/video/coktel_decoder.cpp +++ b/graphics/video/coktel_decoder.cpp @@ -30,6 +30,7 @@ #ifdef GRAPHICS_VIDEO_COKTELDECODER_H #include "sound/audiostream.h" +#include "sound/decoders/raw.h" static const uint32 kVideoCodecIndeo3 = MKID_BE('iv32'); @@ -1866,11 +1867,11 @@ void VMDDecoder::processFrame() { _stream->skip(part.size); } else if (part.flags == 4) { - warning("Vmd::processFrame(): TODO: Addy 5 sound type 4 (%d)", part.size); + warning("VMDDecoder::processFrame(): TODO: Addy 5 sound type 4 (%d)", part.size); disableSound(); _stream->skip(part.size); } else { - warning("Vmd::processFrame(): Unknown sound type %d", part.flags); + warning("VMDDecoder::processFrame(): Unknown sound type %d", part.flags); _stream->skip(part.size); } @@ -1878,7 +1879,7 @@ void VMDDecoder::processFrame() { } else if ((part.type == kPartTypeVideo) && !_hasVideo) { - warning("Vmd::processFrame(): Header claims there's no video, but video found (%d)", part.size); + warning("VMDDecoder::processFrame(): Header claims there's no video, but video found (%d)", part.size); _stream->skip(part.size); } else if ((part.type == kPartTypeVideo) && _hasVideo) { @@ -1928,7 +1929,7 @@ void VMDDecoder::processFrame() { } else { - warning("Vmd::processFrame(): Unknown frame part type %d, size %d (%d of %d)", + warning("VMDDecoder::processFrame(): Unknown frame part type %d, size %d (%d of %d)", part.type, part.size, i + 1, _partsPerFrame); } @@ -1957,12 +1958,243 @@ bool VMDDecoder::renderFrame(int16 &left, int16 &top, int16 &right, int16 &botto } void VMDDecoder::emptySoundSlice(uint32 size) { + byte *sound = soundEmpty(size); + + if (sound) { + uint32 flags = 0; + flags |= (_soundBytesPerSample == 2) ? Audio::FLAG_16BITS : 0; + flags |= (_soundStereo > 0) ? Audio::FLAG_STEREO : 0; + + _audioStream->queueBuffer(sound, size, DisposeAfterUse::YES, flags); + } } void VMDDecoder::filledSoundSlice(uint32 size) { + byte *sound = 0; + if (_audioFormat == kAudioFormat8bitRaw) + sound = sound8bitRaw(size); + else if (_audioFormat == kAudioFormat16bitDPCM) + sound = sound16bitDPCM(size); + else if (_audioFormat == kAudioFormat16bitADPCM) + sound = sound16bitADPCM(size); + + if (sound) { + uint32 flags = 0; + flags |= (_soundBytesPerSample == 2) ? Audio::FLAG_16BITS : 0; + flags |= (_soundStereo > 0) ? Audio::FLAG_STEREO : 0; + + _audioStream->queueBuffer(sound, size, DisposeAfterUse::YES, flags); + } } void VMDDecoder::filledSoundSlices(uint32 size, uint32 mask) { + bool fillInfo[32]; + + uint8 max; + uint8 n = evaluateMask(mask, fillInfo, max); + + int32 extraSize; + + extraSize = size - n * _soundDataSize; + + if (_soundSlicesCount > 32) + extraSize -= (_soundSlicesCount - 32) * _soundDataSize; + + if (n > 0) + extraSize /= n; + + for (uint8 i = 0; i < max; i++) + if (fillInfo[i]) + filledSoundSlice(_soundDataSize + extraSize); + else + emptySoundSlice(_soundDataSize * _soundBytesPerSample); + + if (_soundSlicesCount > 32) + filledSoundSlice((_soundSlicesCount - 32) * _soundDataSize + _soundHeaderSize); +} + +uint8 VMDDecoder::evaluateMask(uint32 mask, bool *fillInfo, uint8 &max) { + max = MIN<int>(_soundSlicesCount - 1, 31); + + uint8 n = 0; + for (int i = 0; i < max; i++) { + + if (!(mask & 1)) { + n++; + *fillInfo++ = true; + } else + *fillInfo++ = false; + + mask >>= 1; + } + + return n; +} + +byte *VMDDecoder::soundEmpty(uint32 &size) { + if (!_audioStream) + return 0; + + byte *soundBuf = (byte *)malloc(size); + memset(soundBuf, 0, size); + + return soundBuf; +} + +byte *VMDDecoder::sound8bitRaw(uint32 &size) { + if (!_audioStream) { + _stream->skip(size); + return 0; + } + + byte *soundBuf = (byte *)malloc(size); + _stream->read(soundBuf, size); + unsignedToSigned(soundBuf, size); + + return soundBuf; +} + +byte *VMDDecoder::sound16bitDPCM(uint32 &size) { + if (!_audioStream) { + _stream->skip(size); + return 0; + } + + int32 init[2]; + + init[0] = _stream->readSint16LE(); + size -= 2; + + if (_soundStereo > 0) { + init[1] = _stream->readSint16LE(); + size -= 2; + } + + byte *data = new byte[size]; + byte *sound = 0; + + if (_stream->read(data, size) == size) + sound = deDPCM(data, size, init); + + delete[] data; + + return sound; +} + +byte *VMDDecoder::sound16bitADPCM(uint32 &size) { + if (!_audioStream) { + _stream->skip(size); + return 0; + } + + int32 init = _stream->readSint16LE(); + size -= 2; + + int32 index = _stream->readByte(); + size--; + + byte *data = new byte[size]; + byte *sound = 0; + + if (_stream->read(data, size) == size) + sound = deADPCM(data, size, init, index); + + delete[] data; + + return sound; +} + +byte *VMDDecoder::deDPCM(const byte *data, uint32 &size, int32 init[2]) { + if (!data || (size == 0)) + return 0; + + int channels = (_soundStereo > 0) ? 2 : 1; + + uint32 inSize = size; + uint32 outSize = size + channels; + + int16 *out = (int16 *)malloc(outSize * 2); + byte *sound = (byte *) out; + + int channel = 0; + + for (int i = 0; i < channels; i++) { + *out++ = TO_BE_16(init[channel]); + + channel = (channel + 1) % channels; + } + + while (inSize-- > 0) { + if (*data & 0x80) + init[channel] -= _tableDPCM[*data++ & 0x7F]; + else + init[channel] += _tableDPCM[*data++]; + + init[channel] = CLIP<int32>(init[channel], -32768, 32767); + *out++ = TO_BE_16(init[channel]); + + channel = (channel + 1) % channels; + } + + size = outSize * 2; + return sound; +} + +// Yet another IMA ADPCM variant +byte *VMDDecoder::deADPCM(const byte *data, uint32 &size, int32 init, int32 index) { + if (!data || (size == 0)) + return 0; + + uint32 outSize = size * 2; + + int16 *out = (int16 *)malloc(outSize * 2); + byte *sound = (byte *) out; + + index = CLIP<int32>(index, 0, 88); + + int32 predictor = _tableADPCM[index]; + + uint32 dataByte = 0; + bool newByte = true; + + size *= 2; + while (size -- > 0) { + byte code = 0; + + if (newByte) { + dataByte = *data++; + code = (dataByte >> 4) & 0xF; + } else + code = dataByte & 0xF; + + newByte = !newByte; + + index += _tableADPCMStep[code]; + index = CLIP<int32>(index, 0, 88); + + int32 value = predictor / 8; + + if (code & 4) + value += predictor; + if (code & 2) + value += predictor / 2; + if (code & 1) + value += predictor / 4; + + if (code & 8) + init -= value; + else + init += value; + + init = CLIP<int32>(init, -32768, 32767); + + predictor = _tableADPCM[index]; + + *out++ = TO_BE_16(init); + } + + size = outSize * 2; + return sound; } PixelFormat VMDDecoder::getPixelFormat() const { diff --git a/graphics/video/coktel_decoder.h b/graphics/video/coktel_decoder.h index aacb039393..4f52a34a40 100644 --- a/graphics/video/coktel_decoder.h +++ b/graphics/video/coktel_decoder.h @@ -464,10 +464,21 @@ private: bool renderFrame(int16 &left, int16 &top, int16 &right, int16 &bottom); // Sound - void emptySoundSlice(uint32 size); - void filledSoundSlice(uint32 size); + void emptySoundSlice (uint32 size); + void filledSoundSlice (uint32 size); void filledSoundSlices(uint32 size, uint32 mask); + uint8 evaluateMask(uint32 mask, bool *fillInfo, uint8 &max); + + // Generating sound slices + byte *soundEmpty (uint32 &size); + byte *sound8bitRaw (uint32 &size); + byte *sound16bitDPCM (uint32 &size); + byte *sound16bitADPCM(uint32 &size); + + // Sound decompression + byte *deDPCM (const byte *data, uint32 &size, int32 init[2]); + byte *deADPCM(const byte *data, uint32 &size, int32 init, int32 index); }; } // End of namespace Graphics |