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603 lines
16 KiB
603 lines
16 KiB
![]()
4 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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#include "audio_pch.h"
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#include "snd_mp3_source.h"
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#include "snd_dma.h"
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#include "snd_wave_mixer_mp3.h"
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#include "filesystem_engine.h"
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#include "utldict.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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#ifndef DEDICATED // have to test this because VPC is forcing us to compile this file.
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// How many bytes initial data bytes of the mp3 should be saved in the soundcache, in addition to the small amount of
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// metadata (playbackrate, etc). This will increase memory usage by
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// ( N * number-of-precached-mp3-sounds-in-the-whole-game ) at all times, as the soundcache is held in memory.
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//
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// Right now we're setting this to zero. The IsReadyToMix() logic at the data layer will delay mixing of the sound until
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// it arrives. Setting this to anything above zero, however, will allow the sound to start, so it needs to either be
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// enough to cover SND_ASYNC_LOOKAHEAD_SECONDS or none at all.
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#define MP3_STARTUP_DATA_SIZE_BYTES 0
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CUtlDict< CSentence *, int> g_PhonemeFileSentences;
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bool g_bAllPhonemesLoaded;
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void PhonemeMP3Shutdown( void )
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{
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g_PhonemeFileSentences.PurgeAndDeleteElements();
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g_bAllPhonemesLoaded = false;
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}
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void AddPhonemesFromFile( const char *pszFileName )
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{
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// If all Phonemes are loaded, do not load anymore
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if ( g_bAllPhonemesLoaded && g_PhonemeFileSentences.Count() != 0 )
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return;
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// Empty file name implies stop loading more phonemes
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if ( pszFileName == NULL )
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{
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g_bAllPhonemesLoaded = true;
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return;
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}
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// Load this file
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g_bAllPhonemesLoaded = false;
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CUtlBuffer buf( 0, 0, CUtlBuffer::TEXT_BUFFER );
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if ( g_pFileSystem->ReadFile( pszFileName, "MOD", buf ) )
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{
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while ( 1 )
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{
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char token[4096];
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buf.GetString( token );
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V_FixSlashes( token );
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int iIndex = g_PhonemeFileSentences.Find( token );
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if ( iIndex != g_PhonemeFileSentences.InvalidIndex() )
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{
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delete g_PhonemeFileSentences.Element( iIndex );
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g_PhonemeFileSentences.Remove( token );
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}
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CSentence *pSentence = new CSentence;
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g_PhonemeFileSentences.Insert( token, pSentence );
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buf.GetString( token );
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if ( strlen( token ) <= 0 )
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break;
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if ( !stricmp( token, "{" ) )
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{
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pSentence->InitFromBuffer( buf );
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}
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}
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}
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}
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CAudioSourceMP3::CAudioSourceMP3( CSfxTable *pSfx )
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{
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m_sampleRate = 0;
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m_pSfx = pSfx;
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m_refCount = 0;
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m_dataStart = 0;
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int file = g_pSndIO->open( pSfx->GetFileName() );
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if ( file != -1 )
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{
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m_dataSize = g_pSndIO->size( file );
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g_pSndIO->close( file );
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}
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else
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{
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// No sound cache, the file isn't here, print this so that the relatively deep failure points that are about to
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// spew make a little more sense
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Warning( "MP3 is completely missing, sound system will be upset to learn of this [ %s ]\n", pSfx->GetFileName() );
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m_dataSize = 0;
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}
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m_nCachedDataSize = 0;
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m_bIsPlayOnce = false;
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m_bIsSentenceWord = false;
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m_bCheckedForPendingSentence = false;
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}
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CAudioSourceMP3::CAudioSourceMP3( CSfxTable *pSfx, CAudioSourceCachedInfo *info )
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{
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m_pSfx = pSfx;
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m_refCount = 0;
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m_sampleRate = info->SampleRate();
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m_dataSize = info->DataSize();
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m_dataStart = info->DataStart();
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m_nCachedDataSize = 0;
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m_bIsPlayOnce = false;
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m_bCheckedForPendingSentence = false;
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CheckAudioSourceCache();
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}
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CAudioSourceMP3::~CAudioSourceMP3()
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{
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}
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// mixer's references
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void CAudioSourceMP3::ReferenceAdd( CAudioMixer * )
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{
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m_refCount++;
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}
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void CAudioSourceMP3::ReferenceRemove( CAudioMixer * )
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{
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m_refCount--;
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if ( m_refCount == 0 && IsPlayOnce() )
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{
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SetPlayOnce( false ); // in case it gets used again
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CacheUnload();
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Output : Returns true on success, false on failure.
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//-----------------------------------------------------------------------------
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bool CAudioSourceMP3::IsAsyncLoad()
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{
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// If there's a bit of "cached data" then we don't have to lazy/async load (we still async load the remaining data,
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// but we run from the cache initially)
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return ( m_nCachedDataSize > 0 ) ? false : true;
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}
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// check reference count, return true if nothing is referencing this
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bool CAudioSourceMP3::CanDelete( void )
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{
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return m_refCount > 0 ? false : true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Output : int
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//-----------------------------------------------------------------------------
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int CAudioSourceMP3::GetType()
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{
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return AUDIO_SOURCE_MP3;
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}
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//-----------------------------------------------------------------------------
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void CAudioSourceMP3::SetSentence( CSentence *pSentence )
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{
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CAudioSourceCachedInfo *info = m_AudioCacheHandle.FastGet();
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if ( !info )
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return;
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if ( info && info->Sentence() )
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return;
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CSentence *pNewSentence = new CSentence;
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pNewSentence->Append( 0.0f, *pSentence );
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pNewSentence->MakeRuntimeOnly();
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info->SetSentence( pNewSentence );
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}
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int CAudioSourceMP3::SampleRate()
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{
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if ( !m_sampleRate )
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{
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// This should've come from the sound cache. We can avoid sync I/O jank if and only if we've started streaming
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// data already for some other reason. (Despite the name, CreateWaveDataMemory is just creating a wrapper class
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// that manages access to the wave data cache)
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IWaveData *pData = CreateWaveDataMemory( *this );
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if ( !pData->IsReadyToMix() && SND_IsInGame() )
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{
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// If you hit this, you're creating a sound source that isn't in the sound cache, and asking for its sample
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// rate before it has streamed enough data in to read it from the underlying file. Your options are:
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// - Rebuild sound cache or figure out why this sound wasn't included.
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// - Precache this sound at level load so this doesn't happen during gameplay.
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// - Somehow call CacheLoad() on this source earlier so it has time to get data into memory so the data
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// shows up as IsReadyToMix here, and this crutch won't jank.
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Warning( "MP3 initialized with no sound cache, this may cause janking. [ %s ]\n", GetFileName() );
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// The code below will still go fine, but the mixer will emit a jank warning that the data wasn't ready and
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// do sync I/O
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}
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CAudioMixerWaveMP3 *pMixer = new CAudioMixerWaveMP3( pData );
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m_sampleRate = pMixer->GetStreamOutputRate();
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// pData ownership is passed to, and free'd by, pMixer
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delete pMixer;
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}
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return m_sampleRate;
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}
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void CAudioSourceMP3::GetCacheData( CAudioSourceCachedInfo *info )
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{
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// Don't want to replicate our cached sample rate back into the new cache, ensure we recompute it.
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CAudioMixerWaveMP3 *pTempMixer = new CAudioMixerWaveMP3( CreateWaveDataMemory(*this) );
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m_sampleRate = pTempMixer->GetStreamOutputRate();
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delete pTempMixer;
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AssertMsg( m_sampleRate, "Creating cache with invalid sample rate data" );
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if ( !m_sampleRate )
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{
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Warning( "Failed to find sample rate creating cache data for MP3, cache will be invalid [ %s ]\n", GetFileName() );
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}
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info->SetSampleRate( m_sampleRate );
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info->SetDataStart( 0 );
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int file = g_pSndIO->open( m_pSfx->GetFileName() );
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if ( !file )
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{
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Warning( "Failed to find file for building soundcache [ %s ]\n", m_pSfx->GetFileName() );
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// Don't re-use old cached value
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m_dataSize = 0;
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}
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else
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{
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m_dataSize = (int)g_pSndIO->size( file );
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}
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Assert( m_dataSize > 0 );
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// Do we need to actually load any audio data?
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#if MP3_STARTUP_DATA_SIZE_BYTES > 0 // We may have defined the startup data to nothingness
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if ( info->s_bIsPrecacheSound && m_dataSize > 0 )
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{
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// Ideally this would mimic the wave startup data code and figure out this calculation:
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// int bytesNeeded = m_channels * ( m_bits >> 3 ) * m_rate * SND_ASYNC_LOOKAHEAD_SECONDS;
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// (plus header)
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int dataSize = min( MP3_STARTUP_DATA_SIZE_BYTES, m_dataSize );
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byte *data = new byte[ dataSize ]();
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int readSize = g_pSndIO->read( data, dataSize, file );
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if ( readSize != dataSize )
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{
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Warning( "Building soundcache, expected %i bytes of data but got %i [ %s ]\n", dataSize, readSize, m_pSfx->GetFileName() );
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dataSize = readSize;
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}
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info->SetCachedDataSize( dataSize );
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info->SetCachedData( data );
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}
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#endif // MP3_STARTUP_DATA_SIZE_BYTES > 0
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g_pSndIO->close( file );
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// Data size gets computed in GetStartupData!!!
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info->SetDataSize( m_dataSize );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Output : char const
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//-----------------------------------------------------------------------------
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char const *CAudioSourceMP3::GetFileName()
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{
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return m_pSfx ? m_pSfx->GetFileName() : "NULL m_pSfx";
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CAudioSourceMP3::CheckAudioSourceCache()
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{
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Assert( m_pSfx );
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if ( !m_pSfx->IsPrecachedSound() )
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{
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return;
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}
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// This will "re-cache" this if it's not in this level's cache already
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m_AudioCacheHandle.Get( GetType(), true, m_pSfx, &m_nCachedDataSize );
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}
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//-----------------------------------------------------------------------------
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// Purpose: NULL the wave data pointer (we haven't loaded yet)
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//-----------------------------------------------------------------------------
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CAudioSourceMP3Cache::CAudioSourceMP3Cache( CSfxTable *pSfx ) :
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CAudioSourceMP3( pSfx )
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{
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m_hCache = 0;
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}
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CAudioSourceMP3Cache::CAudioSourceMP3Cache( CSfxTable *pSfx, CAudioSourceCachedInfo *info ) :
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CAudioSourceMP3( pSfx, info )
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{
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m_hCache = 0;
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m_dataSize = info->DataSize();
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m_dataStart = info->DataStart();
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m_bNoSentence = false;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Free any wave data we've allocated
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//-----------------------------------------------------------------------------
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CAudioSourceMP3Cache::~CAudioSourceMP3Cache( void )
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{
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CacheUnload();
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}
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int CAudioSourceMP3Cache::GetCacheStatus( void )
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{
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bool bCacheValid;
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int loaded = wavedatacache->IsDataLoadCompleted( m_hCache, &bCacheValid ) ? AUDIO_IS_LOADED : AUDIO_NOT_LOADED;
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if ( !bCacheValid )
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{
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wavedatacache->RestartDataLoad( &m_hCache, m_pSfx->GetFileName(), m_dataSize, m_dataStart );
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}
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return loaded;
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}
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void CAudioSourceMP3Cache::CacheLoad( void )
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{
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// Commence lazy load?
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if ( m_hCache != 0 )
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{
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GetCacheStatus();
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return;
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}
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m_hCache = wavedatacache->AsyncLoadCache( m_pSfx->GetFileName(), m_dataSize, m_dataStart );
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}
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void CAudioSourceMP3Cache::CacheUnload( void )
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{
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if ( m_hCache != 0 )
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{
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wavedatacache->Unload( m_hCache );
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}
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}
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char *CAudioSourceMP3Cache::GetDataPointer( void )
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{
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char *pMP3Data = NULL;
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bool dummy = false;
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if ( m_hCache == 0 )
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{
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CacheLoad();
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}
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wavedatacache->GetDataPointer(
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m_hCache,
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m_pSfx->GetFileName(),
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m_dataSize,
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m_dataStart,
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(void **)&pMP3Data,
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0,
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&dummy );
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return pMP3Data;
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}
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int CAudioSourceMP3Cache::GetOutputData( void **pData, int samplePosition, int sampleCount, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] )
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{
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// how many bytes are available ?
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int totalSampleCount = m_dataSize - samplePosition;
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// may be asking for a sample out of range, clip at zero
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if ( totalSampleCount < 0 )
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totalSampleCount = 0;
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// clip max output samples to max available
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if ( sampleCount > totalSampleCount )
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sampleCount = totalSampleCount;
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// if we are returning some samples, store the pointer
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if ( sampleCount )
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{
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// Starting past end of "preloaded" data, just use regular cache
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if ( samplePosition >= m_nCachedDataSize )
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{
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*pData = GetDataPointer();
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}
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else
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{
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// Start async loader if we haven't already done so
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CacheLoad();
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// Return less data if we are about to run out of uncached data
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if ( samplePosition + sampleCount >= m_nCachedDataSize )
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{
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sampleCount = m_nCachedDataSize - samplePosition;
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}
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// Point at preloaded/cached data from .cache file for now
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*pData = GetCachedDataPointer();
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}
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if ( *pData )
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{
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*pData = (char *)*pData + samplePosition;
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}
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else
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{
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// Out of data or file i/o problem
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sampleCount = 0;
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}
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}
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return sampleCount;
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}
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CAudioMixer *CAudioSourceMP3Cache::CreateMixer( int initialStreamPosition )
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{
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CAudioMixer *pMixer = new CAudioMixerWaveMP3( CreateWaveDataMemory(*this) );
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return pMixer;
|
||
|
}
|
||
|
|
||
|
CSentence *CAudioSourceMP3Cache::GetSentence( void )
|
||
|
{
|
||
|
// Already checked and this wav doesn't have sentence data...
|
||
|
if ( m_bNoSentence == true )
|
||
|
{
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
// Look up sentence from cache
|
||
|
CAudioSourceCachedInfo *info = m_AudioCacheHandle.FastGet();
|
||
|
if ( !info )
|
||
|
{
|
||
|
info = m_AudioCacheHandle.Get( CAudioSource::AUDIO_SOURCE_WAV, m_pSfx->IsPrecachedSound(), m_pSfx, &m_nCachedDataSize );
|
||
|
}
|
||
|
Assert( info );
|
||
|
if ( !info )
|
||
|
{
|
||
|
m_bNoSentence = true;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
CSentence *sentence = info->Sentence();
|
||
|
if ( !sentence )
|
||
|
{
|
||
|
if ( !m_bCheckedForPendingSentence )
|
||
|
{
|
||
|
int iSentence = g_PhonemeFileSentences.Find( m_pSfx->GetFileName() );
|
||
|
if ( iSentence != g_PhonemeFileSentences.InvalidIndex() )
|
||
|
{
|
||
|
sentence = g_PhonemeFileSentences.Element( iSentence );
|
||
|
SetSentence( sentence );
|
||
|
}
|
||
|
m_bCheckedForPendingSentence = true;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ( !sentence )
|
||
|
{
|
||
|
m_bNoSentence = true;
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
if ( sentence->m_bIsValid )
|
||
|
{
|
||
|
return sentence;
|
||
|
}
|
||
|
|
||
|
m_bNoSentence = true;
|
||
|
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
//-----------------------------------------------------------------------------
|
||
|
// CAudioSourceStreamMP3
|
||
|
//-----------------------------------------------------------------------------
|
||
|
CAudioSourceStreamMP3::CAudioSourceStreamMP3( CSfxTable *pSfx ) :
|
||
|
CAudioSourceMP3( pSfx )
|
||
|
{
|
||
|
}
|
||
|
|
||
|
CAudioSourceStreamMP3::CAudioSourceStreamMP3( CSfxTable *pSfx, CAudioSourceCachedInfo *info ) :
|
||
|
CAudioSourceMP3( pSfx, info )
|
||
|
{
|
||
|
m_dataSize = info->DataSize();
|
||
|
}
|
||
|
|
||
|
//-----------------------------------------------------------------------------
|
||
|
// Purpose:
|
||
|
//-----------------------------------------------------------------------------
|
||
|
void CAudioSourceStreamMP3::Prefetch()
|
||
|
{
|
||
|
PrefetchDataStream( m_pSfx->GetFileName(), 0, m_dataSize );
|
||
|
}
|
||
|
|
||
|
CAudioMixer *CAudioSourceStreamMP3::CreateMixer( int intialStreamPosition )
|
||
|
{
|
||
|
// BUGBUG: Source constructs the IWaveData, mixer frees it, fix this?
|
||
|
IWaveData *pWaveData = CreateWaveDataStream( *this, static_cast<IWaveStreamSource *>( this ), m_pSfx->GetFileName(), 0, m_dataSize, m_pSfx, 0 );
|
||
|
if ( pWaveData )
|
||
|
{
|
||
|
CAudioMixer *pMixer = new CAudioMixerWaveMP3( pWaveData );
|
||
|
if ( pMixer )
|
||
|
{
|
||
|
if ( !m_bCheckedForPendingSentence )
|
||
|
{
|
||
|
int iSentence = g_PhonemeFileSentences.Find( m_pSfx->GetFileName() );
|
||
|
|
||
|
if ( iSentence != g_PhonemeFileSentences.InvalidIndex() )
|
||
|
{
|
||
|
SetSentence( g_PhonemeFileSentences.Element( iSentence ) );
|
||
|
}
|
||
|
|
||
|
m_bCheckedForPendingSentence = true;
|
||
|
}
|
||
|
|
||
|
return pMixer;
|
||
|
}
|
||
|
|
||
|
// no mixer but pWaveData was deleted in mixer's destructor
|
||
|
// so no need to delete
|
||
|
}
|
||
|
|
||
|
return NULL;
|
||
|
}
|
||
|
|
||
|
int CAudioSourceStreamMP3::GetOutputData( void **pData, int samplePosition, int sampleCount, char copyBuf[AUDIOSOURCE_COPYBUF_SIZE] )
|
||
|
{
|
||
|
return 0;
|
||
|
}
|
||
|
|
||
|
bool Audio_IsMP3( const char *pName )
|
||
|
{
|
||
|
int len = strlen(pName);
|
||
|
if ( len > 4 )
|
||
|
{
|
||
|
if ( !Q_strnicmp( &pName[len - 4], ".mp3", 4 ) )
|
||
|
{
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
|
||
|
CAudioSource *Audio_CreateStreamedMP3( CSfxTable *pSfx )
|
||
|
{
|
||
|
CAudioSourceStreamMP3 *pMP3 = NULL;
|
||
|
CAudioSourceCachedInfo *info = audiosourcecache->GetInfo( CAudioSource::AUDIO_SOURCE_MP3, pSfx->IsPrecachedSound(), pSfx );
|
||
|
if ( info )
|
||
|
{
|
||
|
pMP3 = new CAudioSourceStreamMP3( pSfx, info );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pMP3 = new CAudioSourceStreamMP3( pSfx );
|
||
|
}
|
||
|
return pMP3;
|
||
|
}
|
||
|
|
||
|
|
||
|
CAudioSource *Audio_CreateMemoryMP3( CSfxTable *pSfx )
|
||
|
{
|
||
|
CAudioSourceMP3Cache *pMP3 = NULL;
|
||
|
CAudioSourceCachedInfo *info = audiosourcecache->GetInfo( CAudioSource::AUDIO_SOURCE_MP3, pSfx->IsPrecachedSound(), pSfx );
|
||
|
if ( info )
|
||
|
{
|
||
|
pMP3 = new CAudioSourceMP3Cache( pSfx, info );
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
pMP3 = new CAudioSourceMP3Cache( pSfx );
|
||
|
}
|
||
|
return pMP3;
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|