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MoonWorks
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VideoPlayer only uses one VideoAV1Stream

sdl2_gpu
cosmonaut 2024-03-12 12:44:58 -07:00
parent b4021156cf
commit 39dc2fb7f4
1 changed files with 23 additions and 39 deletions
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62
src/Video/VideoPlayer.cs
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@ -16,11 +16,7 @@ namespace MoonWorks.Video
public float PlaybackSpeed { get; set; } = 1;
private VideoAV1 Video = null;
private VideoAV1Stream CurrentStream = null;
// "double buffering" so we can loop without a stutter
private VideoAV1Stream StreamA { get; }
private VideoAV1Stream StreamB { get; }
private VideoAV1Stream Stream { get; }
private Texture yTexture = null;
private Texture uTexture = null;
@ -37,8 +33,7 @@ namespace MoonWorks.Video
public VideoPlayer(GraphicsDevice device) : base(device)
{
StreamA = new VideoAV1Stream(device);
StreamB = new VideoAV1Stream(device);
Stream = new VideoAV1Stream(device);
LinearSampler = new Sampler(device, SamplerCreateInfo.LinearClamp);
@ -180,8 +175,7 @@ namespace MoonWorks.Video
State = VideoState.Stopped;
StreamA.Unload();
StreamB.Unload();
Stream.Unload();
Video = null;
}
@ -202,27 +196,26 @@ namespace MoonWorks.Video
int thisFrame = ((int) (timeElapsed / (1000.0 / Video.FramesPerSecond)));
if (thisFrame > currentFrame)
{
if (CurrentStream.FrameDataUpdated)
if (Stream.FrameDataUpdated)
{
UpdateRenderTexture();
CurrentStream.FrameDataUpdated = false;
Stream.FrameDataUpdated = false;
}
currentFrame = thisFrame;
CurrentStream.ReadNextFrame();
Stream.ReadNextFrame();
}
if (CurrentStream.Ended)
if (Stream.Ended)
{
timer.Stop();
timer.Reset();
CurrentStream.Reset();
Stream.Reset();
if (Loop)
{
// Start over on the next stream!
CurrentStream = (CurrentStream == StreamA) ? StreamB : StreamA;
// Start over!
currentFrame = -1;
timer.Start();
}
@ -237,12 +230,14 @@ namespace MoonWorks.Video
{
uint uOffset;
uint vOffset;
uint yStride;
uint uvStride;
lock (CurrentStream)
lock (Stream)
{
var ySpan = new Span<byte>((void*) CurrentStream.yDataHandle, (int) CurrentStream.yDataLength);
var uSpan = new Span<byte>((void*) CurrentStream.uDataHandle, (int) CurrentStream.uvDataLength);
var vSpan = new Span<byte>((void*) CurrentStream.vDataHandle, (int) CurrentStream.uvDataLength);
var ySpan = new Span<byte>((void*) Stream.yDataHandle, (int) Stream.yDataLength);
var uSpan = new Span<byte>((void*) Stream.uDataHandle, (int) Stream.uvDataLength);
var vSpan = new Span<byte>((void*) Stream.vDataHandle, (int) Stream.uvDataLength);
if (TransferBuffer == null || TransferBuffer.Size < ySpan.Length + uSpan.Length + vSpan.Length)
{
@ -255,6 +250,9 @@ namespace MoonWorks.Video
uOffset = (uint) ySpan.Length;
vOffset = (uint) (ySpan.Length + vSpan.Length);
yStride = Stream.yStride;
uvStride = Stream.uvStride;
}
var commandBuffer = Device.AcquireCommandBuffer();
@ -267,7 +265,7 @@ namespace MoonWorks.Video
new BufferImageCopy
{
BufferOffset = 0,
BufferStride = CurrentStream.yStride,
BufferStride = yStride,
BufferImageHeight = yTexture.Height
},
WriteOptions.Cycle
@ -278,7 +276,7 @@ namespace MoonWorks.Video
uTexture,
new BufferImageCopy{
BufferOffset = uOffset,
BufferStride = CurrentStream.uvStride,
BufferStride = uvStride,
BufferImageHeight = uTexture.Height
},
WriteOptions.Cycle
@ -290,7 +288,7 @@ namespace MoonWorks.Video
new BufferImageCopy
{
BufferOffset = vOffset,
BufferStride = CurrentStream.uvStride,
BufferStride = uvStride,
BufferImageHeight = vTexture.Height
},
WriteOptions.Cycle
@ -340,30 +338,16 @@ namespace MoonWorks.Video
private void InitializeDav1dStream()
{
StreamA.Load(Video.Filename);
StreamB.Load(Video.Filename);
CurrentStream = StreamA;
Stream.Load(Video.Filename);
currentFrame = -1;
}
private void ResetDav1dStreams()
{
StreamA.Reset();
StreamB.Reset();
CurrentStream = StreamA;
Stream.Reset();
currentFrame = -1;
}
private static void HandleTaskException(Task task)
{
if (task.Exception.InnerException is not TaskCanceledException)
{
throw task.Exception;
}
}
protected override void Dispose(bool disposing)
{
if (!IsDisposed)