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bigger buffer for streaming sounds

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Glenn Maynard
2004-08-21 07:05:32 +00:00
parent ed2939b205
commit 29c1393a7d
1 changed files with 9 additions and 2 deletions
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stepmania/src/arch/Sound/RageSoundDriver_Generic_Software.cpp
+9 -2
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@@ -10,9 +10,10 @@ static const int channels = 2;
static const int bytes_per_frame = channels*2; /* 16-bit */ static const int bytes_per_frame = channels*2; /* 16-bit */
/* When a sound has fewer than min_fill_frames buffered, buffer at maximum speed. /* When a sound has fewer than min_fill_frames buffered, buffer at maximum speed.
* Once beyond that */ * Once beyond that, fill at a limited rate. */
static const int min_fill_frames = 1024*4; static const int min_fill_frames = 1024*4;
static int frames_to_buffer; static int frames_to_buffer;
static int min_streaming_buffer_size = 1024*32;
/* 512 is about 10ms, which is big enough for the tolerance of most schedulers. */ /* 512 is about 10ms, which is big enough for the tolerance of most schedulers. */
static int chunksize() { return 512; } static int chunksize() { return 512; }
@@ -322,7 +323,13 @@ void RageSound_Generic_Software::StartMixing( RageSoundBase *snd )
s.buffer.clear(); s.buffer.clear();
/* Initialize the sound buffer. */ /* Initialize the sound buffer. */
s.Allocate( frames_to_buffer ); int BufferSize = frames_to_buffer;
/* If a sound is streaming from disk, use a bigger buffer, so we don't underrun
* if a drive seek takes too long. */
if( s.snd->IsStreamingFromDisk() )
BufferSize = max( BufferSize, min_streaming_buffer_size );
s.Allocate( BufferSize );
// LOG->Trace("StartMixing(%s) (%p)", s.snd->GetLoadedFilePath().c_str(), s.snd ); // LOG->Trace("StartMixing(%s) (%p)", s.snd->GetLoadedFilePath().c_str(), s.snd );