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276
audio/audioCodecMiles.cc
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276
audio/audioCodecMiles.cc
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//-----------------------------------------------------------------------------
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// V12 Engine
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//
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// Copyright (c) 2001 GarageGames.Com
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// Portions Copyright (c) 2001 by Sierra Online, Inc.
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//-----------------------------------------------------------------------------
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#include "audio/audioCodecMiles.h"
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//--------------------------------------------------------------------------
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// Class MilesEncoderCodec:
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//--------------------------------------------------------------------------
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MilesEncoderCodec::MilesEncoderCodec(const char * ext) : VoiceEncoderCodec()
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{
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mProvider = 0;
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mProcStreamOpen = 0;
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mProcStreamProcess = 0;
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mProcStreamClose = 0;
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mQueue = 0;
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mExtension = dStrdup(ext);
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}
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MilesEncoderCodec::~MilesEncoderCodec()
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{
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close();
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dFree(mExtension);
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}
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VoiceCodec * MilesEncoderCodec::create(U32 codecId)
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{
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const char * ext = 0;
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switch(codecId)
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{
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case AUDIO_CODEC_V12: ext = ".v12"; break;
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case AUDIO_CODEC_V24: ext = ".v24"; break;
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case AUDIO_CODEC_V29: ext = ".v29"; break;
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default:
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return(0);
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}
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// create and open the codec
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MilesEncoderCodec * codec = new MilesEncoderCodec(ext);
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if(!codec->open())
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{
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delete codec;
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codec = 0;
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}
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return(codec);
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}
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//--------------------------------------------------------------------------
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bool MilesEncoderCodec::open()
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{
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if(mProvider)
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return(true);
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RIB_INTERFACE_ENTRY ENCODER_REQUEST[] = {
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{ RIB_FUNCTION, "ASI_stream_open", (U32)&mProcStreamOpen, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_close", (U32)&mProcStreamClose, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_process", (U32)&mProcStreamProcess, RIB_NONE } };
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mProvider = RIB_find_file_provider("ASI codec", "Output file types", mExtension);
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if(mProvider && (RIB_request(mProvider, "ASI stream", ENCODER_REQUEST) == RIB_NOERR))
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return(true);
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return(false);
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}
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void MilesEncoderCodec::close()
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{
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if(mProvider)
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{
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RIB_free_provider_handle(mProvider);
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mProvider = 0;
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}
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}
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//--------------------------------------------------------------------------
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void * MilesEncoderCodec::openStream()
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{
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HASISTREAM handle = mProcStreamOpen((U32)this, callback_router, 0);
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if(!handle)
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return(0);
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HASISTREAM * stream = new HASISTREAM;
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*stream = handle;
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return(static_cast<void *>(stream));
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}
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void MilesEncoderCodec::closeStream(void * stream)
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{
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AssertFatal(stream, "MilesEncoderCodec::closeStream: invalid stream ptr");
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HASISTREAM * pHandle = static_cast<HASISTREAM*>(stream);
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if(mProvider)
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mProcStreamClose(*pHandle);
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delete pHandle;
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}
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//--------------------------------------------------------------------------
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S32 AILCALLBACK MilesEncoderCodec::callback_router(U32 user, void FAR *dest, S32 bytesRequested, S32 offset)
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{
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return(((MilesEncoderCodec*)user)->callback(dest, bytesRequested, offset));
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}
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S32 MilesEncoderCodec::callback(void * dest, S32 bytesRequested, S32 offset)
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{
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offset;
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return(mQueue->dequeue((U8*)dest, bytesRequested));
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}
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U32 MilesEncoderCodec::process(void * stream, BufferQueue * queue, const U8 * data, U32 maxLen)
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{
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if(!stream || !queue)
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return(0);
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mQueue = queue;
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U32 amount = U32(mProcStreamProcess(*static_cast<HASISTREAM * >(stream), static_cast<void*>(const_cast<U8*>(data)), S32(maxLen)));
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mQueue = 0;
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return(amount);
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}
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//--------------------------------------------------------------------------
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// Class MilesDecoderCodec:
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//--------------------------------------------------------------------------
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MilesDecoderCodec::MilesDecoderCodec(const char * ext) : VoiceDecoderCodec()
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{
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mProvider = 0;
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mProcStreamOpen = 0;
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mProcStreamProcess = 0;
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mProcStreamSeek = 0;
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mProcStreamClose = 0;
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mProcStreamAttribute = 0;
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mProcStreamSetPreference = 0;
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mAttribOutputSampleRate = 0;
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mAttribOutputBits = 0;
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mAttribOutputChannels = 0;
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mAttribRequestedRate = 0;
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mQueue = 0;
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mExtension = dStrdup(ext);
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}
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MilesDecoderCodec::~MilesDecoderCodec()
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{
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close();
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dFree(mExtension);
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}
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VoiceCodec * MilesDecoderCodec::create(U32 codecId)
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{
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const char * ext = 0;
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switch(codecId)
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{
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case AUDIO_CODEC_V12: ext = ".v12"; break;
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case AUDIO_CODEC_V24: ext = ".v24"; break;
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case AUDIO_CODEC_V29: ext = ".v29"; break;
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default:
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return(0);
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}
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// create and open the codec
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MilesDecoderCodec * codec = new MilesDecoderCodec(ext);
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if(!codec->open())
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{
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delete codec;
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codec = 0;
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}
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return(codec);
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}
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//--------------------------------------------------------------------------
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bool MilesDecoderCodec::open()
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{
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if(mProvider)
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return(true);
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RIB_INTERFACE_ENTRY DECODER_REQUEST[] = {
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{ RIB_FUNCTION, "ASI_stream_attribute", (U32) &mProcStreamAttribute, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_open", (U32) &mProcStreamOpen, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_seek", (U32) &mProcStreamSeek, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_close", (U32) &mProcStreamClose, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_process", (U32) &mProcStreamProcess, RIB_NONE },
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{ RIB_FUNCTION, "ASI_stream_set_preference", (U32) &mProcStreamSetPreference, RIB_NONE },
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{ RIB_ATTRIBUTE, "Output sample rate", (U32) &mAttribOutputSampleRate, RIB_NONE },
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{ RIB_ATTRIBUTE, "Output sample width", (U32) &mAttribOutputBits, RIB_NONE },
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{ RIB_ATTRIBUTE, "Output channels", (U32) &mAttribOutputChannels, RIB_NONE },
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{ RIB_PREFERENCE, "Requested sample rate", (U32) &mAttribRequestedRate, RIB_NONE } };
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mProvider = RIB_find_file_provider("ASI codec", "Input file types", mExtension);
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if(mProvider && (RIB_request(mProvider, "ASI stream", DECODER_REQUEST) == RIB_NOERR))
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return(true);
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return(false);
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}
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void MilesDecoderCodec::close()
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{
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if(mProvider)
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{
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RIB_free_provider_handle(mProvider);
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mProvider = 0;
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}
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}
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//--------------------------------------------------------------------------
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void * MilesDecoderCodec::openStream()
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{
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if(!mProvider)
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return(0);
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HASISTREAM handle = mProcStreamOpen((U32)this, callback_router, 0);
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if(!handle)
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return(0);
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// properties...
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U32 requestedRate = VOICE_FREQUENCY;
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mProcStreamSetPreference(handle, mAttribRequestedRate, &requestedRate);
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U32 chan = mProcStreamAttribute(handle, mAttribOutputChannels);
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U32 rate = mProcStreamAttribute(handle, mAttribOutputSampleRate);
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U32 bits = mProcStreamAttribute(handle, mAttribOutputBits);
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if((chan != VOICE_CHANNELS) || (rate != VOICE_FREQUENCY) || (bits != VOICE_BITS))
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{
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mProcStreamClose(handle);
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return(0);
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}
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HASISTREAM * stream = new HASISTREAM;
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*stream = handle;
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return(static_cast<void *>(stream));
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}
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void MilesDecoderCodec::closeStream(void * stream)
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{
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AssertFatal(stream, "MilesDecoderCodec::closeStream: invalid stream ptr");
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HASISTREAM * pHandle = static_cast<HASISTREAM*>(stream);
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if(mProvider)
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mProcStreamClose(*pHandle);
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delete pHandle;
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}
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//--------------------------------------------------------------------------
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S32 AILCALLBACK MilesDecoderCodec::callback_router(U32 user, void FAR *dest, S32 bytesRequested, S32 offset)
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{
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return(((MilesDecoderCodec*)user)->callback(dest, bytesRequested, offset));
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}
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S32 MilesDecoderCodec::callback(void * dest, S32 bytesRequested, S32 offset)
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{
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offset;
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return(mQueue->dequeue((U8*)dest, bytesRequested));
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}
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U32 MilesDecoderCodec::process(void * stream, BufferQueue * queue, const U8 * data, U32 maxLen)
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{
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if(!stream || !queue)
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return(0);
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mQueue = queue;
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U32 amount = U32(mProcStreamProcess(*static_cast<HASISTREAM * >(stream), static_cast<void*>(const_cast<U8*>(data)), S32(maxLen)));
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mQueue = 0;
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return(amount);
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}
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