forked from MoonsideGames/MoonWorks
Video Optimization (#22)
- Videos are now shoved into memory when created to avoid disk latency issues - Added VideoPlayer class to avoid redundant texture creation on videos - Most Video functions are now on VideoPlayer Reviewed-on: MoonsideGames/MoonWorks#22custom_video_shaders
parent
491eafac76
commit
b380707462
|
@ -17,62 +17,35 @@ namespace MoonWorks.Video
|
|||
public unsafe class Video : IDisposable
|
||||
{
|
||||
internal IntPtr Handle;
|
||||
private IntPtr rwData;
|
||||
private void* videoData;
|
||||
|
||||
public bool Loop { get; private set; }
|
||||
public float Volume {
|
||||
get => volume;
|
||||
set
|
||||
{
|
||||
volume = value;
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Volume = value;
|
||||
}
|
||||
}
|
||||
}
|
||||
public float PlaybackSpeed { get; set; } = 1;
|
||||
public double FramesPerSecond => fps;
|
||||
private VideoState State = VideoState.Stopped;
|
||||
public int Width => yWidth;
|
||||
public int Height => yHeight;
|
||||
public int UVWidth { get; }
|
||||
public int UVHeight { get; }
|
||||
|
||||
private double fps;
|
||||
private int yWidth;
|
||||
private int yHeight;
|
||||
private int uvWidth;
|
||||
private int uvHeight;
|
||||
|
||||
private void* yuvData = null;
|
||||
private int yuvDataLength;
|
||||
private int currentFrame;
|
||||
|
||||
private GraphicsDevice GraphicsDevice;
|
||||
private Texture RenderTexture = null;
|
||||
private Texture yTexture = null;
|
||||
private Texture uTexture = null;
|
||||
private Texture vTexture = null;
|
||||
private Sampler LinearSampler;
|
||||
|
||||
private AudioDevice AudioDevice = null;
|
||||
private StreamingSoundTheora audioStream = null;
|
||||
private float volume = 1.0f;
|
||||
|
||||
private Stopwatch timer;
|
||||
private double lastTimestamp;
|
||||
private double timeElapsed;
|
||||
|
||||
private bool disposed;
|
||||
|
||||
/* TODO: is there some way for us to load the data into memory? */
|
||||
public Video(GraphicsDevice graphicsDevice, AudioDevice audioDevice, string filename)
|
||||
public Video(string filename)
|
||||
{
|
||||
GraphicsDevice = graphicsDevice;
|
||||
AudioDevice = audioDevice;
|
||||
|
||||
if (!System.IO.File.Exists(filename))
|
||||
{
|
||||
throw new ArgumentException("Video file not found!");
|
||||
}
|
||||
|
||||
if (Theorafile.tf_fopen(filename, out Handle) < 0)
|
||||
var bytes = System.IO.File.ReadAllBytes(filename);
|
||||
videoData = NativeMemory.Alloc((nuint) bytes.Length);
|
||||
Marshal.Copy(bytes, 0, (IntPtr) videoData, bytes.Length);
|
||||
rwData = SDL2.SDL.SDL_RWFromMem((IntPtr) videoData, bytes.Length);
|
||||
|
||||
if (Theorafile.tf_open_callbacks(rwData, out Handle, callbacks) < 0)
|
||||
{
|
||||
throw new ArgumentException("Invalid video file!");
|
||||
}
|
||||
|
@ -88,237 +61,35 @@ namespace MoonWorks.Video
|
|||
|
||||
if (format == Theorafile.th_pixel_fmt.TH_PF_420)
|
||||
{
|
||||
uvWidth = yWidth / 2;
|
||||
uvHeight = yHeight / 2;
|
||||
UVWidth = Width / 2;
|
||||
UVHeight = Height / 2;
|
||||
}
|
||||
else if (format == Theorafile.th_pixel_fmt.TH_PF_422)
|
||||
{
|
||||
uvWidth = yWidth / 2;
|
||||
uvHeight = yHeight;
|
||||
UVWidth = Width / 2;
|
||||
UVHeight = Height;
|
||||
}
|
||||
else if (format == Theorafile.th_pixel_fmt.TH_PF_444)
|
||||
{
|
||||
uvWidth = yWidth;
|
||||
uvHeight = yHeight;
|
||||
UVWidth = Width;
|
||||
UVHeight = Height;
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new NotSupportedException("Unrecognized YUV format!");
|
||||
}
|
||||
|
||||
yuvDataLength = (
|
||||
(yWidth * yHeight) +
|
||||
(uvWidth * uvHeight * 2)
|
||||
);
|
||||
|
||||
yuvData = NativeMemory.Alloc((nuint) yuvDataLength);
|
||||
|
||||
InitializeTheoraStream();
|
||||
|
||||
if (Theorafile.tf_hasvideo(Handle) == 1)
|
||||
{
|
||||
RenderTexture = Texture.CreateTexture2D(
|
||||
GraphicsDevice,
|
||||
(uint) yWidth,
|
||||
(uint) yHeight,
|
||||
TextureFormat.R8G8B8A8,
|
||||
TextureUsageFlags.ColorTarget | TextureUsageFlags.Sampler
|
||||
);
|
||||
|
||||
yTexture = Texture.CreateTexture2D(
|
||||
GraphicsDevice,
|
||||
(uint) yWidth,
|
||||
(uint) yHeight,
|
||||
TextureFormat.R8,
|
||||
TextureUsageFlags.Sampler
|
||||
);
|
||||
|
||||
uTexture = Texture.CreateTexture2D(
|
||||
GraphicsDevice,
|
||||
(uint) uvWidth,
|
||||
(uint) uvHeight,
|
||||
TextureFormat.R8,
|
||||
TextureUsageFlags.Sampler
|
||||
);
|
||||
|
||||
vTexture = Texture.CreateTexture2D(
|
||||
GraphicsDevice,
|
||||
(uint) uvWidth,
|
||||
(uint) uvHeight,
|
||||
TextureFormat.R8,
|
||||
TextureUsageFlags.Sampler
|
||||
);
|
||||
|
||||
LinearSampler = new Sampler(GraphicsDevice, SamplerCreateInfo.LinearClamp);
|
||||
}
|
||||
|
||||
timer = new Stopwatch();
|
||||
}
|
||||
|
||||
public void Play(bool loop = false)
|
||||
private static IntPtr Read(IntPtr ptr, IntPtr size, IntPtr nmemb, IntPtr datasource) => (IntPtr) SDL2.SDL.SDL_RWread(datasource, ptr, size, nmemb);
|
||||
private static int Seek(IntPtr datasource, long offset, Theorafile.SeekWhence whence) => (int) SDL2.SDL.SDL_RWseek(datasource, offset, (int) whence);
|
||||
private static int Close(IntPtr datasource) => (int) SDL2.SDL.SDL_RWclose(datasource);
|
||||
|
||||
private static Theorafile.tf_callbacks callbacks = new Theorafile.tf_callbacks
|
||||
{
|
||||
if (State == VideoState.Playing)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
Loop = loop;
|
||||
timer.Start();
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Play();
|
||||
}
|
||||
|
||||
State = VideoState.Playing;
|
||||
}
|
||||
|
||||
public void Pause()
|
||||
{
|
||||
if (State != VideoState.Playing)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
timer.Stop();
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Pause();
|
||||
}
|
||||
|
||||
State = VideoState.Paused;
|
||||
}
|
||||
|
||||
public void Stop()
|
||||
{
|
||||
if (State == VideoState.Stopped)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
timer.Stop();
|
||||
timer.Reset();
|
||||
|
||||
Theorafile.tf_reset(Handle);
|
||||
lastTimestamp = 0;
|
||||
timeElapsed = 0;
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.StopImmediate();
|
||||
audioStream.Dispose();
|
||||
audioStream = null;
|
||||
}
|
||||
|
||||
State = VideoState.Stopped;
|
||||
}
|
||||
|
||||
public Texture GetTexture()
|
||||
{
|
||||
if (RenderTexture == null)
|
||||
{
|
||||
throw new InvalidOperationException();
|
||||
}
|
||||
|
||||
if (State == VideoState.Stopped)
|
||||
{
|
||||
return RenderTexture;
|
||||
}
|
||||
|
||||
timeElapsed += (timer.Elapsed.TotalMilliseconds - lastTimestamp) * PlaybackSpeed;
|
||||
lastTimestamp = timer.Elapsed.TotalMilliseconds;
|
||||
|
||||
int thisFrame = ((int) (timeElapsed / (1000.0 / FramesPerSecond)));
|
||||
if (thisFrame > currentFrame)
|
||||
{
|
||||
if (Theorafile.tf_readvideo(
|
||||
Handle,
|
||||
(IntPtr) yuvData,
|
||||
thisFrame - currentFrame
|
||||
) == 1 || currentFrame == -1) {
|
||||
UpdateTexture();
|
||||
}
|
||||
|
||||
currentFrame = thisFrame;
|
||||
}
|
||||
|
||||
bool ended = Theorafile.tf_eos(Handle) == 1;
|
||||
if (ended)
|
||||
{
|
||||
timer.Stop();
|
||||
timer.Reset();
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Stop();
|
||||
audioStream.Dispose();
|
||||
audioStream = null;
|
||||
}
|
||||
|
||||
Theorafile.tf_reset(Handle);
|
||||
|
||||
if (Loop)
|
||||
{
|
||||
// Start over!
|
||||
InitializeTheoraStream();
|
||||
|
||||
timer.Start();
|
||||
}
|
||||
else
|
||||
{
|
||||
State = VideoState.Stopped;
|
||||
}
|
||||
}
|
||||
|
||||
return RenderTexture;
|
||||
}
|
||||
|
||||
private void UpdateTexture()
|
||||
{
|
||||
var commandBuffer = GraphicsDevice.AcquireCommandBuffer();
|
||||
|
||||
commandBuffer.SetTextureDataYUV(
|
||||
yTexture,
|
||||
uTexture,
|
||||
vTexture,
|
||||
(IntPtr) yuvData,
|
||||
(uint) yuvDataLength
|
||||
);
|
||||
|
||||
commandBuffer.BeginRenderPass(
|
||||
new ColorAttachmentInfo(RenderTexture, Color.Black)
|
||||
);
|
||||
|
||||
commandBuffer.BindGraphicsPipeline(GraphicsDevice.VideoPipeline);
|
||||
commandBuffer.BindFragmentSamplers(
|
||||
new TextureSamplerBinding(yTexture, LinearSampler),
|
||||
new TextureSamplerBinding(uTexture, LinearSampler),
|
||||
new TextureSamplerBinding(vTexture, LinearSampler)
|
||||
);
|
||||
|
||||
commandBuffer.DrawPrimitives(0, 1, 0, 0);
|
||||
|
||||
commandBuffer.EndRenderPass();
|
||||
|
||||
GraphicsDevice.Submit(commandBuffer);
|
||||
}
|
||||
|
||||
private void InitializeTheoraStream()
|
||||
{
|
||||
// Grab the first video frame ASAP.
|
||||
while (Theorafile.tf_readvideo(Handle, (IntPtr) yuvData, 1) == 0);
|
||||
|
||||
// Grab the first bit of audio. We're trying to start the decoding ASAP.
|
||||
if (AudioDevice != null && Theorafile.tf_hasaudio(Handle) == 1)
|
||||
{
|
||||
int channels, sampleRate;
|
||||
Theorafile.tf_audioinfo(Handle, out channels, out sampleRate);
|
||||
audioStream = new StreamingSoundTheora(AudioDevice, Handle, channels, (uint) sampleRate);
|
||||
}
|
||||
|
||||
currentFrame = -1;
|
||||
}
|
||||
read_func = Read,
|
||||
seek_func = Seek,
|
||||
close_func = Close
|
||||
};
|
||||
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
|
@ -327,15 +98,11 @@ namespace MoonWorks.Video
|
|||
if (disposing)
|
||||
{
|
||||
// dispose managed state (managed objects)
|
||||
RenderTexture.Dispose();
|
||||
yTexture.Dispose();
|
||||
uTexture.Dispose();
|
||||
vTexture.Dispose();
|
||||
}
|
||||
|
||||
// free unmanaged resources (unmanaged objects)
|
||||
Theorafile.tf_close(ref Handle);
|
||||
NativeMemory.Free(yuvData);
|
||||
NativeMemory.Free(videoData);
|
||||
|
||||
disposed = true;
|
||||
}
|
||||
|
|
|
@ -0,0 +1,335 @@
|
|||
using System;
|
||||
using System.Diagnostics;
|
||||
using System.Runtime.InteropServices;
|
||||
using MoonWorks.Audio;
|
||||
using MoonWorks.Graphics;
|
||||
|
||||
namespace MoonWorks.Video
|
||||
{
|
||||
public unsafe class VideoPlayer : IDisposable
|
||||
{
|
||||
public Texture RenderTexture { get; private set; } = null;
|
||||
public VideoState State { get; private set; } = VideoState.Stopped;
|
||||
public bool Loop { get; set; }
|
||||
public float Volume {
|
||||
get => volume;
|
||||
set
|
||||
{
|
||||
volume = value;
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Volume = value;
|
||||
}
|
||||
}
|
||||
}
|
||||
public float PlaybackSpeed { get; set; } = 1;
|
||||
|
||||
private Video Video = null;
|
||||
|
||||
private GraphicsDevice GraphicsDevice;
|
||||
private Texture yTexture = null;
|
||||
private Texture uTexture = null;
|
||||
private Texture vTexture = null;
|
||||
private Sampler LinearSampler;
|
||||
|
||||
private void* yuvData = null;
|
||||
private int yuvDataLength = 0;
|
||||
|
||||
private int currentFrame;
|
||||
|
||||
private AudioDevice AudioDevice;
|
||||
private StreamingSoundTheora audioStream = null;
|
||||
private float volume = 1.0f;
|
||||
|
||||
private Stopwatch timer;
|
||||
private double lastTimestamp;
|
||||
private double timeElapsed;
|
||||
|
||||
private bool disposed;
|
||||
|
||||
public VideoPlayer(GraphicsDevice graphicsDevice, AudioDevice audioDevice)
|
||||
{
|
||||
GraphicsDevice = graphicsDevice;
|
||||
AudioDevice = audioDevice;
|
||||
LinearSampler = new Sampler(graphicsDevice, SamplerCreateInfo.LinearClamp);
|
||||
|
||||
timer = new Stopwatch();
|
||||
}
|
||||
|
||||
public void Load(Video video)
|
||||
{
|
||||
Stop();
|
||||
|
||||
if (RenderTexture == null)
|
||||
{
|
||||
RenderTexture = CreateRenderTexture(GraphicsDevice, video.Width, video.Height);
|
||||
}
|
||||
|
||||
if (yTexture == null)
|
||||
{
|
||||
yTexture = CreateSubTexture(GraphicsDevice, video.Width, video.Height);
|
||||
}
|
||||
|
||||
if (uTexture == null)
|
||||
{
|
||||
uTexture = CreateSubTexture(GraphicsDevice, video.UVWidth, video.UVHeight);
|
||||
}
|
||||
|
||||
if (vTexture == null)
|
||||
{
|
||||
vTexture = CreateSubTexture(GraphicsDevice, video.UVWidth, video.UVHeight);
|
||||
}
|
||||
|
||||
if (video.Width != RenderTexture.Width || video.Height != RenderTexture.Height)
|
||||
{
|
||||
RenderTexture.Dispose();
|
||||
RenderTexture = CreateRenderTexture(GraphicsDevice, video.Width, video.Height);
|
||||
}
|
||||
|
||||
if (video.Width != yTexture.Width || video.Height != yTexture.Height)
|
||||
{
|
||||
yTexture.Dispose();
|
||||
yTexture = CreateSubTexture(GraphicsDevice, video.Width, video.Height);
|
||||
}
|
||||
|
||||
if (video.UVWidth != uTexture.Width || video.UVHeight != uTexture.Height)
|
||||
{
|
||||
uTexture.Dispose();
|
||||
uTexture = CreateSubTexture(GraphicsDevice, video.UVWidth, video.UVHeight);
|
||||
}
|
||||
|
||||
if (video.UVWidth != vTexture.Width || video.UVHeight != vTexture.Height)
|
||||
{
|
||||
vTexture.Dispose();
|
||||
vTexture = CreateSubTexture(GraphicsDevice, video.UVWidth, video.UVHeight);
|
||||
}
|
||||
|
||||
var newDataLength = (
|
||||
(video.Width * video.Height) +
|
||||
(video.UVWidth * video.UVHeight * 2)
|
||||
);
|
||||
|
||||
if (newDataLength != yuvDataLength)
|
||||
{
|
||||
yuvData = NativeMemory.Realloc(yuvData, (nuint) newDataLength);
|
||||
yuvDataLength = newDataLength;
|
||||
}
|
||||
|
||||
Video = video;
|
||||
|
||||
InitializeTheoraStream();
|
||||
}
|
||||
|
||||
public void Play()
|
||||
{
|
||||
if (State == VideoState.Playing)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
timer.Start();
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Play();
|
||||
}
|
||||
|
||||
State = VideoState.Playing;
|
||||
}
|
||||
|
||||
public void Pause()
|
||||
{
|
||||
if (State != VideoState.Playing)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
timer.Stop();
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Pause();
|
||||
}
|
||||
|
||||
State = VideoState.Paused;
|
||||
}
|
||||
|
||||
public void Stop()
|
||||
{
|
||||
if (State == VideoState.Stopped)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
timer.Stop();
|
||||
timer.Reset();
|
||||
|
||||
Theorafile.tf_reset(Video.Handle);
|
||||
lastTimestamp = 0;
|
||||
timeElapsed = 0;
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.StopImmediate();
|
||||
audioStream.Dispose();
|
||||
audioStream = null;
|
||||
}
|
||||
|
||||
State = VideoState.Stopped;
|
||||
}
|
||||
|
||||
public void Render()
|
||||
{
|
||||
if (Video == null || State == VideoState.Stopped)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
timeElapsed += (timer.Elapsed.TotalMilliseconds - lastTimestamp) * PlaybackSpeed;
|
||||
lastTimestamp = timer.Elapsed.TotalMilliseconds;
|
||||
|
||||
int thisFrame = ((int) (timeElapsed / (1000.0 / Video.FramesPerSecond)));
|
||||
if (thisFrame > currentFrame)
|
||||
{
|
||||
if (Theorafile.tf_readvideo(
|
||||
Video.Handle,
|
||||
(IntPtr) yuvData,
|
||||
thisFrame - currentFrame
|
||||
) == 1 || currentFrame == -1) {
|
||||
UpdateRenderTexture();
|
||||
}
|
||||
|
||||
currentFrame = thisFrame;
|
||||
}
|
||||
|
||||
bool ended = Theorafile.tf_eos(Video.Handle) == 1;
|
||||
if (ended)
|
||||
{
|
||||
timer.Stop();
|
||||
timer.Reset();
|
||||
|
||||
if (audioStream != null)
|
||||
{
|
||||
audioStream.Stop();
|
||||
audioStream.Dispose();
|
||||
audioStream = null;
|
||||
}
|
||||
|
||||
Theorafile.tf_reset(Video.Handle);
|
||||
|
||||
if (Loop)
|
||||
{
|
||||
// Start over!
|
||||
InitializeTheoraStream();
|
||||
|
||||
timer.Start();
|
||||
}
|
||||
else
|
||||
{
|
||||
State = VideoState.Stopped;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void UpdateRenderTexture()
|
||||
{
|
||||
var commandBuffer = GraphicsDevice.AcquireCommandBuffer();
|
||||
|
||||
commandBuffer.SetTextureDataYUV(
|
||||
yTexture,
|
||||
uTexture,
|
||||
vTexture,
|
||||
(IntPtr) yuvData,
|
||||
(uint) yuvDataLength
|
||||
);
|
||||
|
||||
commandBuffer.BeginRenderPass(
|
||||
new ColorAttachmentInfo(RenderTexture, Color.Black)
|
||||
);
|
||||
|
||||
commandBuffer.BindGraphicsPipeline(GraphicsDevice.VideoPipeline);
|
||||
commandBuffer.BindFragmentSamplers(
|
||||
new TextureSamplerBinding(yTexture, LinearSampler),
|
||||
new TextureSamplerBinding(uTexture, LinearSampler),
|
||||
new TextureSamplerBinding(vTexture, LinearSampler)
|
||||
);
|
||||
|
||||
commandBuffer.DrawPrimitives(0, 1, 0, 0);
|
||||
|
||||
commandBuffer.EndRenderPass();
|
||||
|
||||
GraphicsDevice.Submit(commandBuffer);
|
||||
}
|
||||
|
||||
private static Texture CreateRenderTexture(GraphicsDevice graphicsDevice, int width, int height)
|
||||
{
|
||||
return Texture.CreateTexture2D(
|
||||
graphicsDevice,
|
||||
(uint) width,
|
||||
(uint) height,
|
||||
TextureFormat.R8G8B8A8,
|
||||
TextureUsageFlags.ColorTarget | TextureUsageFlags.Sampler
|
||||
);
|
||||
}
|
||||
|
||||
private static Texture CreateSubTexture(GraphicsDevice graphicsDevice, int width, int height)
|
||||
{
|
||||
return Texture.CreateTexture2D(
|
||||
graphicsDevice,
|
||||
(uint) width,
|
||||
(uint) height,
|
||||
TextureFormat.R8,
|
||||
TextureUsageFlags.Sampler
|
||||
);
|
||||
}
|
||||
|
||||
private void InitializeTheoraStream()
|
||||
{
|
||||
// Grab the first video frame ASAP.
|
||||
while (Theorafile.tf_readvideo(Video.Handle, (IntPtr) yuvData, 1) == 0);
|
||||
|
||||
// Grab the first bit of audio. We're trying to start the decoding ASAP.
|
||||
if (AudioDevice != null && Theorafile.tf_hasaudio(Video.Handle) == 1)
|
||||
{
|
||||
int channels, sampleRate;
|
||||
Theorafile.tf_audioinfo(Video.Handle, out channels, out sampleRate);
|
||||
audioStream = new StreamingSoundTheora(AudioDevice, Video.Handle, channels, (uint) sampleRate);
|
||||
}
|
||||
|
||||
currentFrame = -1;
|
||||
}
|
||||
|
||||
protected virtual void Dispose(bool disposing)
|
||||
{
|
||||
if (!disposed)
|
||||
{
|
||||
if (disposing)
|
||||
{
|
||||
// dispose managed state (managed objects)
|
||||
RenderTexture.Dispose();
|
||||
yTexture.Dispose();
|
||||
uTexture.Dispose();
|
||||
vTexture.Dispose();
|
||||
}
|
||||
|
||||
// free unmanaged resources (unmanaged objects) and override finalizer
|
||||
NativeMemory.Free(yuvData);
|
||||
|
||||
disposed = true;
|
||||
}
|
||||
}
|
||||
|
||||
~VideoPlayer()
|
||||
{
|
||||
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
|
||||
Dispose(disposing: false);
|
||||
}
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
|
||||
Dispose(disposing: true);
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue