56 lines
1.3 KiB
C#
56 lines
1.3 KiB
C#
using System;
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using MoonWorks.Audio;
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namespace MoonWorks.Video
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{
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public unsafe class StreamingSoundTheora : StreamingSound
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{
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private IntPtr VideoHandle;
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protected override int BUFFER_SIZE => 8192;
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// Theorafile is not thread safe, so let's update on the main thread.
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public override bool AutoUpdate => false;
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internal StreamingSoundTheora(
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AudioDevice device,
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IntPtr videoHandle,
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int channels,
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uint sampleRate
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) : base(
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device,
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3, /* float type */
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32, /* size of float */
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(ushort) (4 * channels),
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(ushort) channels,
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sampleRate
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) {
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VideoHandle = videoHandle;
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}
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protected override unsafe void FillBuffer(
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void* buffer,
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int bufferLengthInBytes,
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out int filledLengthInBytes,
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out bool reachedEnd
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) {
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var lengthInFloats = bufferLengthInBytes / sizeof(float);
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// FIXME: this gets gnarly with theorafile being not thread safe
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// is there some way we could just manually update in VideoPlayer
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// instead of going through AudioDevice?
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lock (Device.StateLock)
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{
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int samples = Theorafile.tf_readaudio(
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VideoHandle,
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(IntPtr) buffer,
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lengthInFloats
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);
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filledLengthInBytes = samples * sizeof(float);
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reachedEnd = Theorafile.tf_eos(VideoHandle) == 1;
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}
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}
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protected override void OnReachedEnd() { }
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}
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}
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