Path: blob/master/BizHawk.Client.EmuHawk/AVOut/AviWriter.cs
2 views
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using BizHawk.Client.Common;
using BizHawk.Emulation.Common;
//some helpful p/invoke from http://www.codeproject.com/KB/audio-video/Motion_Detection.aspx?msg=1142967
namespace BizHawk.Client.EmuHawk
{
[VideoWriter("vfwavi", "AVI writer",
"Uses the Microsoft AVIFIL32 system to write .avi files. Audio is uncompressed; Video can be compressed with any installed VCM codec. Splits on 2G and resolution change.")]
class AviWriter : IVideoWriter
{
CodecToken currVideoCodecToken = null;
AviWriterSegment currSegment;
IEnumerator<string> nameProvider;
public void SetFrame(int frame) { }
bool IsOpen { get { return nameProvider != null; } }
public void Dispose()
{
if (currSegment != null)
currSegment.Dispose();
}
/// <summary>
/// sets the codec token to be used for video compression
/// </summary>
public void SetVideoCodecToken(IDisposable token)
{
if (token is CodecToken)
currVideoCodecToken = (CodecToken)token;
else
throw new ArgumentException("AviWriter only takes its own Codec Tokens!");
}
public static IEnumerator<string> CreateBasicNameProvider(string template)
{
string dir = Path.GetDirectoryName(template);
string baseName = Path.GetFileNameWithoutExtension(template);
string ext = Path.GetExtension(template);
yield return template;
int counter = 1;
for (; ; )
{
yield return Path.Combine(dir, baseName) + "_" + counter + ext;
counter++;
}
}
/// <summary>
/// opens an avi file for recording with names based on the supplied template.
/// set a video codec token first.
/// </summary>
public void OpenFile(string baseName) { OpenFile(CreateBasicNameProvider(baseName)); }
// thread communication
// synchronized queue with custom messages
// it seems like there are 99999 ways to do everything in C#, so i'm sure this is not the best
System.Collections.Concurrent.BlockingCollection<Object> threadQ;
System.Threading.Thread workerT;
void threadproc()
{
try
{
while (true)
{
Object o = threadQ.Take();
if (o is IVideoProvider)
AddFrameEx((IVideoProvider)o);
else if (o is short[])
AddSamplesEx((short[])o);
else
// anything else is assumed to be quit time
return;
}
}
catch (Exception e)
{
System.Windows.Forms.MessageBox.Show("AVIFIL32 Thread died:\n\n" + e);
return;
}
}
// we can't pass the IVideoProvider we get to another thread, because it doesn't actually keep a local copy of its data,
// instead grabbing it from the emu as needed. this causes frame loss/dupping as a race condition
// instead we pass this
class VideoCopy : IVideoProvider
{
int[] vb;
public int VirtualWidth { get; private set; }
public int VirtualHeight { get; private set; }
public int BufferWidth { get; private set; }
public int BufferHeight { get; private set; }
public int BackgroundColor { get; private set; }
public VideoCopy(IVideoProvider c)
{
vb = (int[])c.GetVideoBuffer().Clone();
BufferWidth = c.BufferWidth;
BufferHeight= c.BufferHeight;
BackgroundColor = c.BackgroundColor;
VirtualWidth = c.VirtualWidth;
VirtualHeight = c.VirtualHeight;
}
public int[] GetVideoBuffer()
{
return vb;
}
}
/// <summary>
/// opens an avi file for recording with the supplied enumerator used to name files.
/// set a video codec token first.
/// </summary>
/// <param name="nameProvider"></param>
public void OpenFile(IEnumerator<string> nameProvider)
{
this.nameProvider = nameProvider;
if (currVideoCodecToken == null)
throw new InvalidOperationException("Tried to start recording an AVI with no video codec token set");
threadQ = new System.Collections.Concurrent.BlockingCollection<Object>(30);
workerT = new System.Threading.Thread(new System.Threading.ThreadStart(threadproc));
workerT.Start();
}
public void CloseFile()
{
threadQ.Add(new Object()); // acts as stop message
workerT.Join();
if (currSegment != null)
currSegment.Dispose();
currSegment = null;
}
public void AddFrame(IVideoProvider source)
{
while (!threadQ.TryAdd(new VideoCopy(source), 1000))
{
if (!workerT.IsAlive)
throw new Exception("AVI Worker thread died!");
}
}
void AddFrameEx(IVideoProvider source)
{
SetVideoParameters(source.BufferWidth, source.BufferHeight);
ConsiderLengthSegment();
if (currSegment == null) Segment();
currSegment.AddFrame(source);
}
public void AddSamples(short[] samples)
{
// as MainForm.cs is written now, samples is all ours (nothing else will use it for anything)
// but that's a bad assumption to make and could change in the future, so copy it since we're passing to another thread
while (!threadQ.TryAdd((short[])samples.Clone(), 1000))
{
if (!workerT.IsAlive)
throw new Exception("AVI Worker thread died!");
}
}
void AddSamplesEx(short[] samples)
{
ConsiderLengthSegment();
if (currSegment == null) Segment();
currSegment.AddSamples(samples);
}
void ConsiderLengthSegment()
{
if (currSegment == null) return;
long len = currSegment.GetLengthApproximation();
const long segment_length_limit = 2 * 1000 * 1000 * 1000; //2GB
//const long segment_length_limit = 10 * 1000 * 1000; //for testing
if (len > segment_length_limit) Segment();
}
void StartRecording()
{
//i guess theres nothing to do here
}
void Segment()
{
if (!IsOpen) return;
if (currSegment == null)
StartRecording();
else
currSegment.Dispose();
currSegment = new AviWriterSegment();
nameProvider.MoveNext();
currSegment.OpenFile(nameProvider.Current, parameters, currVideoCodecToken);
try
{
currSegment.OpenStreams();
}
catch // will automatically try again with 32 bit
{
currSegment.OpenStreams();
}
}
/// <summary>
/// Acquires a video codec configuration from the user. you may save it for future use, but you must dispose of it when youre done with it.
/// returns null if the user canceled the dialog
/// </summary>
public IDisposable AcquireVideoCodecToken(System.Windows.Forms.IWin32Window hwnd) //, CodecToken lastToken)
{
var temp_params = new Parameters();
temp_params.height = 256;
temp_params.width = 256;
temp_params.fps = 60;
temp_params.fps_scale = 1;
temp_params.a_bits = 16;
temp_params.a_samplerate = 44100;
temp_params.a_channels = 2;
var temp = new AviWriterSegment();
string tempfile = Path.GetTempFileName();
File.Delete(tempfile);
tempfile = Path.ChangeExtension(tempfile, "avi");
temp.OpenFile(tempfile, temp_params, null); //lastToken);
CodecToken token = (CodecToken)temp.AcquireVideoCodecToken(hwnd.Handle, currVideoCodecToken);
temp.CloseFile();
File.Delete(tempfile);
return token;
}
class Parameters
{
public int width, height;
public int pitch; //in bytes
public int pitch_add;
public void PopulateBITMAPINFOHEADER24(ref Win32.BITMAPINFOHEADER bmih)
{
bmih.Init();
bmih.biPlanes = 1;
bmih.biBitCount = 24;
bmih.biHeight = height;
//pad up width so that we end up with multiple of 4 bytes
pitch = width * 3;
pitch = (pitch + 3) & ~3;
pitch_add = pitch - width * 3;
bmih.biWidth = width;
bmih.biSizeImage = (uint)(pitch * height);
}
public void PopulateBITMAPINFOHEADER32(ref Win32.BITMAPINFOHEADER bmih)
{
bmih.Init();
bmih.biPlanes = 1;
bmih.biBitCount = 32;
pitch = width * 4;
bmih.biHeight = height;
bmih.biWidth = width;
bmih.biSizeImage = (uint)(pitch * height);
}
public bool has_audio;
public int a_samplerate, a_channels, a_bits;
public void PopulateWAVEFORMATEX(ref Win32.WAVEFORMATEX wfex)
{
int bytes = 0;
if (a_bits == 16) bytes = 2;
else if (a_bits == 8) bytes = 1;
else throw new InvalidOperationException("only 8/16 bits audio are supported by AviWriter and you chose: " + a_bits);
if (a_channels == 1) { }
else if (a_channels == 2) { }
else throw new InvalidOperationException("only 1/2 channels audio are supported by AviWriter and you chose: " + a_channels);
wfex.Init();
wfex.nBlockAlign = (ushort)(bytes * a_channels);
wfex.nChannels = (ushort)a_channels;
wfex.wBitsPerSample = (ushort)a_bits;
wfex.wFormatTag = Win32.WAVE_FORMAT_PCM;
wfex.nSamplesPerSec = (uint)a_samplerate;
wfex.nAvgBytesPerSec = (uint)(wfex.nBlockAlign * a_samplerate);
}
public int fps, fps_scale;
}
Parameters parameters = new Parameters();
/// <summary>
/// set basic movie timing parameters for the avi file. must be set before the file is opened.
/// </summary>
public void SetMovieParameters(int fps, int fps_scale)
{
bool change = false;
change |= fps != parameters.fps;
parameters.fps = fps;
change |= parameters.fps_scale != fps_scale;
parameters.fps_scale = fps_scale;
if (change) Segment();
}
/// <summary>
/// set basic video parameters for the avi file. must be set before the file is opened.
/// </summary>
public void SetVideoParameters(int width, int height)
{
bool change = false;
change |= parameters.width != width;
parameters.width = width;
change |= parameters.height != height;
parameters.height = height;
if (change) Segment();
}
/// <summary>
/// set basic audio parameters for the avi file. must be set before the file isopened.
/// </summary>
public void SetAudioParameters(int sampleRate, int channels, int bits)
{
bool change = false;
change |= parameters.a_samplerate != sampleRate;
parameters.a_samplerate = sampleRate;
change |= parameters.a_channels != channels;
parameters.a_channels = channels;
change |= parameters.a_bits != bits;
parameters.a_bits = bits;
change |= parameters.has_audio != true;
parameters.has_audio = true;
if (change) Segment();
}
public class CodecToken : IDisposable
{
public void Dispose() { }
private CodecToken() { }
private Win32.AVICOMPRESSOPTIONS comprOptions;
public string codec;
public byte[] Format = new byte[0];
public byte[] Parms = new byte[0];
public static CodecToken CreateFromAVICOMPRESSOPTIONS(ref Win32.AVICOMPRESSOPTIONS opts)
{
CodecToken ret = new CodecToken();
ret.comprOptions = opts;
ret.codec = Win32.decode_mmioFOURCC(opts.fccHandler);
ret.Format = new byte[opts.cbFormat];
ret.Parms = new byte[opts.cbParms];
if(opts.lpFormat != 0) Marshal.Copy(new IntPtr(opts.lpFormat), ret.Format, 0, opts.cbFormat);
if (opts.lpParms != 0) Marshal.Copy(new IntPtr(opts.lpParms), ret.Parms, 0, opts.cbParms);
return ret;
}
[DllImport("kernel32.dll", SetLastError = true)]
public static extern bool HeapFree(IntPtr hHeap, uint dwFlags, int lpMem);
[DllImport("kernel32.dll", SetLastError = true)]
public static extern IntPtr GetProcessHeap();
[DllImport("kernel32.dll", SetLastError = false)]
public static extern IntPtr HeapAlloc(IntPtr hHeap, uint dwFlags, int dwBytes);
public static void DeallocateAVICOMPRESSOPTIONS(ref Win32.AVICOMPRESSOPTIONS opts)
{
//test: increase stability by never freeing anything, ever
//if (opts.lpParms != 0) CodecToken.HeapFree(CodecToken.GetProcessHeap(), 0, opts.lpParms);
//if (opts.lpFormat != 0) CodecToken.HeapFree(CodecToken.GetProcessHeap(), 0, opts.lpFormat);
opts.lpParms = 0;
opts.lpFormat = 0;
}
public void AllocateToAVICOMPRESSOPTIONS(ref Win32.AVICOMPRESSOPTIONS opts)
{
opts = comprOptions;
if (opts.cbParms != 0)
{
opts.lpParms = HeapAlloc(GetProcessHeap(), 0, opts.cbParms).ToInt32();
Marshal.Copy(Parms, 0, new IntPtr(opts.lpParms), opts.cbParms);
}
if (opts.cbFormat != 0)
{
opts.lpFormat = HeapAlloc(GetProcessHeap(), 0, opts.cbFormat).ToInt32();
Marshal.Copy(Format, 0, new IntPtr(opts.lpFormat), opts.cbFormat);
}
}
byte[] SerializeToByteArray()
{
var m = new MemoryStream();
var b = new BinaryWriter(m);
b.Write(comprOptions.fccType);
b.Write(comprOptions.fccHandler);
b.Write(comprOptions.dwKeyFrameEvery);
b.Write(comprOptions.dwQuality);
b.Write(comprOptions.dwBytesPerSecond);
b.Write(comprOptions.dwFlags);
//b.Write(comprOptions.lpFormat);
b.Write(comprOptions.cbFormat);
//b.Write(comprOptions.lpParms);
b.Write(comprOptions.cbParms);
b.Write(comprOptions.dwInterleaveEvery);
b.Write(Format);
b.Write(Parms);
b.Close();
return m.ToArray();
}
static CodecToken DeSerializeFromByteArray(byte[] data)
{
var m = new MemoryStream(data, false);
var b = new BinaryReader(m);
Win32.AVICOMPRESSOPTIONS comprOptions = new Win32.AVICOMPRESSOPTIONS();
byte[] Format;
byte[] Parms;
try
{
comprOptions.fccType = b.ReadInt32();
comprOptions.fccHandler = b.ReadInt32();
comprOptions.dwKeyFrameEvery = b.ReadInt32();
comprOptions.dwQuality = b.ReadInt32();
comprOptions.dwBytesPerSecond = b.ReadInt32();
comprOptions.dwFlags = b.ReadInt32();
//comprOptions.lpFormat = b.ReadInt32();
comprOptions.cbFormat = b.ReadInt32();
//comprOptions.lpParms = b.ReadInt32();
comprOptions.cbParms = b.ReadInt32();
comprOptions.dwInterleaveEvery = b.ReadInt32();
Format = b.ReadBytes(comprOptions.cbFormat);
Parms = b.ReadBytes(comprOptions.cbParms);
}
catch (IOException)
{
// ran off end of array most likely
return null;
}
finally
{
b.Close();
}
CodecToken ret = new CodecToken();
ret.comprOptions = comprOptions;
ret.Format = Format;
ret.Parms = Parms;
ret.codec = Win32.decode_mmioFOURCC(comprOptions.fccHandler);
return ret;
}
public string Serialize()
{
return Convert.ToBase64String(SerializeToByteArray());
}
public static CodecToken DeSerialize(string s)
{
return DeSerializeFromByteArray(Convert.FromBase64String(s));
}
}
/// <summary>
/// set metadata parameters; should be called before opening file
/// NYI
/// </summary>
public void SetMetaData(string gameName, string authors, UInt64 lengthMS, UInt64 rerecords)
{
}
unsafe class AviWriterSegment : IDisposable
{
static AviWriterSegment()
{
Win32.AVIFileInit();
}
public AviWriterSegment()
{
}
public void Dispose()
{
CloseFile();
}
CodecToken currVideoCodecToken = null;
bool IsOpen;
IntPtr pAviFile, pAviRawVideoStream, pAviRawAudioStream, pAviCompressedVideoStream;
IntPtr pGlobalBuf;
int pGlobalBuf_size;
/// <summary>are we sending 32 bit RGB to avi or 24?</summary>
bool bit32 = false;
/// <summary>
/// there is just ony global buf. this gets it and makes sure its big enough. don't get all re-entrant on it!
/// </summary>
IntPtr GetStaticGlobalBuf(int amount)
{
if (amount > pGlobalBuf_size)
{
if (pGlobalBuf != IntPtr.Zero)
Marshal.FreeHGlobal(pGlobalBuf);
pGlobalBuf_size = amount;
pGlobalBuf = Marshal.AllocHGlobal(pGlobalBuf_size);
}
return pGlobalBuf;
}
class OutputStatus
{
public int video_frames;
public int video_bytes;
public int audio_bytes;
public int audio_samples;
public int audio_buffered_shorts;
public const int AUDIO_SEGMENT_SIZE = 44100 * 2;
public short[] BufferedShorts = new short[AUDIO_SEGMENT_SIZE];
}
OutputStatus outStatus;
public long GetLengthApproximation() { return outStatus.video_bytes + outStatus.audio_bytes; }
static unsafe int AVISaveOptions(IntPtr stream, ref Win32.AVICOMPRESSOPTIONS opts, IntPtr owner)
{
fixed (Win32.AVICOMPRESSOPTIONS* _popts = &opts)
{
IntPtr* pStream = &stream;
Win32.AVICOMPRESSOPTIONS* popts = _popts;
Win32.AVICOMPRESSOPTIONS** ppopts = &popts;
return Win32.AVISaveOptions(owner, 0, 1, (void*)pStream, (void*)ppopts);
}
}
Parameters parameters;
public void OpenFile(string destPath, Parameters parameters, CodecToken videoCodecToken)
{
this.parameters = parameters;
this.currVideoCodecToken = videoCodecToken;
//TODO - try creating the file once first before we let vfw botch it up?
//open the avi output file handle
if (File.Exists(destPath))
File.Delete(destPath);
if (Win32.FAILED(Win32.AVIFileOpenW(ref pAviFile, destPath, Win32.OpenFileStyle.OF_CREATE | Win32.OpenFileStyle.OF_WRITE, 0)))
throw new InvalidOperationException("Couldnt open dest path for avi file: " + destPath);
//initialize the video stream
Win32.AVISTREAMINFOW vidstream_header = new Win32.AVISTREAMINFOW();
Win32.BITMAPINFOHEADER bmih = new Win32.BITMAPINFOHEADER();
parameters.PopulateBITMAPINFOHEADER24(ref bmih);
vidstream_header.fccType = Win32.mmioFOURCC("vids");
vidstream_header.dwRate = parameters.fps;
vidstream_header.dwScale = parameters.fps_scale;
vidstream_header.dwSuggestedBufferSize = (int)bmih.biSizeImage;
if (Win32.FAILED(Win32.AVIFileCreateStreamW(pAviFile, out pAviRawVideoStream, ref vidstream_header)))
{
CloseFile();
throw new InvalidOperationException("Failed opening raw video stream. Not sure how this could happen");
}
//initialize audio stream
Win32.AVISTREAMINFOW audstream_header = new Win32.AVISTREAMINFOW();
Win32.WAVEFORMATEX wfex = new Win32.WAVEFORMATEX();
parameters.PopulateWAVEFORMATEX(ref wfex);
audstream_header.fccType = Win32.mmioFOURCC("auds");
audstream_header.dwQuality = -1;
audstream_header.dwScale = wfex.nBlockAlign;
audstream_header.dwRate = (int)wfex.nAvgBytesPerSec;
audstream_header.dwSampleSize = wfex.nBlockAlign;
audstream_header.dwInitialFrames = 1; // ??? optimal value?
if (Win32.FAILED(Win32.AVIFileCreateStreamW(pAviFile, out pAviRawAudioStream, ref audstream_header)))
{
CloseFile();
throw new InvalidOperationException("Failed opening raw audio stream. Not sure how this could happen");
}
outStatus = new OutputStatus();
IsOpen = true;
}
/// <summary>
/// Acquires a video codec configuration from the user
/// </summary>
public IDisposable AcquireVideoCodecToken(IntPtr hwnd, CodecToken lastCodecToken)
{
if (!IsOpen) throw new InvalidOperationException("File must be opened before acquiring a codec token (or else the stream formats wouldnt be known)");
if (lastCodecToken != null)
currVideoCodecToken = lastCodecToken;
//encoder params
Win32.AVICOMPRESSOPTIONS comprOptions = new Win32.AVICOMPRESSOPTIONS();
if (currVideoCodecToken != null)
{
currVideoCodecToken.AllocateToAVICOMPRESSOPTIONS(ref comprOptions);
}
bool result = AVISaveOptions(pAviRawVideoStream, ref comprOptions, hwnd) != 0;
CodecToken ret = CodecToken.CreateFromAVICOMPRESSOPTIONS(ref comprOptions);
//so, AVISaveOptions may have changed some of the pointers
//if it changed the pointers, did it it free the old ones? we don't know
//let's assume it frees them. if we're wrong, we leak. if we assume otherwise and we're wrong, we may crash.
//so that means any pointers that come in here are either
//1. ones we allocated a minute ago
//2. ones VFW allocated
//guess what? doesn't matter. We'll free them all ourselves.
CodecToken.DeallocateAVICOMPRESSOPTIONS(ref comprOptions);
if(result)
{
// save to config and return it
Global.Config.AVICodecToken = ret.Serialize();
return ret;
}
else
return null;
}
/// <summary>
/// begin recording
/// </summary>
public void OpenStreams()
{
if (currVideoCodecToken == null)
throw new InvalidOperationException("set a video codec token before opening the streams!");
//open compressed video stream
Win32.AVICOMPRESSOPTIONS opts = new Win32.AVICOMPRESSOPTIONS();
currVideoCodecToken.AllocateToAVICOMPRESSOPTIONS(ref opts);
bool failed = Win32.FAILED(Win32.AVIMakeCompressedStream(out pAviCompressedVideoStream, pAviRawVideoStream, ref opts, IntPtr.Zero));
CodecToken.DeallocateAVICOMPRESSOPTIONS(ref opts);
if(failed)
{
CloseStreams();
throw new InvalidOperationException("Failed making compressed video stream");
}
//set the compressed video stream input format
Win32.BITMAPINFOHEADER bmih = new Win32.BITMAPINFOHEADER();
if (bit32)
parameters.PopulateBITMAPINFOHEADER32(ref bmih);
else
parameters.PopulateBITMAPINFOHEADER24(ref bmih);
if (Win32.FAILED(Win32.AVIStreamSetFormat(pAviCompressedVideoStream, 0, ref bmih, Marshal.SizeOf(bmih))))
{
bit32 = true; // we'll try again
CloseStreams();
throw new InvalidOperationException("Failed setting compressed video stream input format");
}
//set audio stream input format
Win32.WAVEFORMATEX wfex = new Win32.WAVEFORMATEX();
parameters.PopulateWAVEFORMATEX(ref wfex);
if (Win32.FAILED(Win32.AVIStreamSetFormat(pAviRawAudioStream, 0, ref wfex, Marshal.SizeOf(wfex))))
{
CloseStreams();
throw new InvalidOperationException("Failed setting raw audio stream input format");
}
}
/// <summary>
/// wrap up the avi writing
/// </summary>
public void CloseFile()
{
CloseStreams();
if (pAviRawAudioStream != IntPtr.Zero)
{
Win32.AVIStreamRelease(pAviRawAudioStream);
pAviRawAudioStream = IntPtr.Zero;
}
if (pAviRawVideoStream != IntPtr.Zero)
{
Win32.AVIStreamRelease(pAviRawVideoStream);
pAviRawVideoStream = IntPtr.Zero;
}
if (pAviFile != IntPtr.Zero)
{
Win32.AVIFileRelease(pAviFile);
pAviFile = IntPtr.Zero;
}
if (pGlobalBuf != IntPtr.Zero)
{
Marshal.FreeHGlobal(pGlobalBuf);
pGlobalBuf = IntPtr.Zero;
pGlobalBuf_size = 0;
}
}
/// <summary>
/// end recording
/// </summary>
public void CloseStreams()
{
if (pAviRawAudioStream != IntPtr.Zero)
FlushBufferedAudio();
if (pAviCompressedVideoStream != IntPtr.Zero)
{
Win32.AVIStreamRelease(pAviCompressedVideoStream);
pAviCompressedVideoStream = IntPtr.Zero;
}
}
//todo - why couldnt this take an ISoundProvider? it could do the timekeeping as well.. hmm
public unsafe void AddSamples(short[] samples)
{
int todo = samples.Length;
int idx = 0;
while (todo > 0)
{
int remain = OutputStatus.AUDIO_SEGMENT_SIZE - outStatus.audio_buffered_shorts;
int chunk = Math.Min(remain, todo);
for (int i = 0; i < chunk; i++)
outStatus.BufferedShorts[outStatus.audio_buffered_shorts++] = samples[idx++];
todo -= chunk;
if (outStatus.audio_buffered_shorts == OutputStatus.AUDIO_SEGMENT_SIZE)
FlushBufferedAudio();
}
}
unsafe void FlushBufferedAudio()
{
int todo = outStatus.audio_buffered_shorts;
int todo_realsamples = todo / 2;
IntPtr buf = GetStaticGlobalBuf(todo * 2);
short* sptr = (short*)buf.ToPointer();
for (int i = 0; i < todo; i++)
{
sptr[i] = outStatus.BufferedShorts[i];
}
//(TODO - inefficient- build directly in a buffer)
int bytes_written;
Win32.AVIStreamWrite(pAviRawAudioStream, outStatus.audio_samples, todo_realsamples, buf, todo_realsamples * 4, 0, IntPtr.Zero, out bytes_written);
outStatus.audio_samples += todo_realsamples;
outStatus.audio_bytes += bytes_written;
outStatus.audio_buffered_shorts = 0;
}
public unsafe void AddFrame(IVideoProvider source)
{
if (parameters.width != source.BufferWidth
|| parameters.height != source.BufferHeight)
throw new InvalidOperationException("video buffer changed between start and now");
int pitch_add = parameters.pitch_add;
int todo = parameters.pitch * parameters.height;
int w = source.BufferWidth;
int h = source.BufferHeight;
if (!bit32)
{
IntPtr buf = GetStaticGlobalBuf(todo);
//TODO - would using a byte* be faster?
int[] buffer = source.GetVideoBuffer();
fixed (int* buffer_ptr = &buffer[0])
{
byte* bytes_ptr = (byte*)buf.ToPointer();
{
byte* bp = bytes_ptr;
for (int idx = w * h - w, y = 0; y < h; y++)
{
for (int x = 0; x < w; x++, idx++)
{
int r = (buffer[idx] >> 0) & 0xFF;
int g = (buffer[idx] >> 8) & 0xFF;
int b = (buffer[idx] >> 16) & 0xFF;
*bp++ = (byte)r;
*bp++ = (byte)g;
*bp++ = (byte)b;
}
idx -= w * 2;
bp += pitch_add;
}
int bytes_written;
int ret = Win32.AVIStreamWrite(pAviCompressedVideoStream, outStatus.video_frames, 1, new IntPtr(bytes_ptr), todo, Win32.AVIIF_KEYFRAME, IntPtr.Zero, out bytes_written);
outStatus.video_bytes += bytes_written;
outStatus.video_frames++;
}
}
}
else // 32 bit
{
IntPtr buf = GetStaticGlobalBuf(todo * 4);
int[] buffer = source.GetVideoBuffer();
fixed (int* buffer_ptr = &buffer[0])
{
byte* bytes_ptr = (byte*)buf.ToPointer();
{
byte* bp = bytes_ptr;
for (int idx = w * h - w, y = 0; y < h; y++)
{
for (int x = 0; x < w; x++, idx++)
{
int r = (buffer[idx] >> 0) & 0xFF;
int g = (buffer[idx] >> 8) & 0xFF;
int b = (buffer[idx] >> 16) & 0xFF;
*bp++ = (byte)r;
*bp++ = (byte)g;
*bp++ = (byte)b;
*bp++ = 0;
}
idx -= w * 2;
}
int bytes_written;
int ret = Win32.AVIStreamWrite(pAviCompressedVideoStream, outStatus.video_frames, 1, new IntPtr(bytes_ptr), todo * 3, Win32.AVIIF_KEYFRAME, IntPtr.Zero, out bytes_written);
outStatus.video_bytes += bytes_written;
outStatus.video_frames++;
}
}
}
}
}
public void SetDefaultVideoCodecToken()
{
CodecToken ct = CodecToken.DeSerialize(Global.Config.AVICodecToken);
if (ct == null)
throw new Exception("No default AVICodecToken in config!");
currVideoCodecToken = ct;
}
public string DesiredExtension()
{
return "avi";
}
public bool UsesAudio { get { return parameters.has_audio; } }
public bool UsesVideo { get { return true; } }
}
}
////TEST AVI
//AviWriter aw = new AviWriter();
//aw.SetVideoParameters(256, 256);
//aw.SetMovieParameters(60, 1);
//aw.OpenFile("d:\\bizhawk.avi");
//CreateHandle();
//var token = aw.AcquireVideoCodecToken(Handle);
//aw.SetVideoCodecToken(token);
//aw.OpenStreams();
//for (int i = 0; i < 100; i++)
//{
// TestVideoProvider video = new TestVideoProvider();
// Bitmap bmp = new Bitmap(256, 256, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
// using (Graphics g = Graphics.FromImage(bmp))
// {
// g.Clear(Color.Red);
// using (Font f = new Font(FontFamily.GenericMonospace, 10))
// g.DrawString(i.ToString(), f, Brushes.Black, 0, 0);
// }
// //bmp.Save(string.Format("c:\\dump\\{0}.bmp", i), ImageFormat.Bmp);
// for (int y = 0, idx = 0; y < 256; y++)
// for (int x = 0; x < 256; x++)
// video.buffer[idx++] = bmp.GetPixel(x, y).ToArgb();
// aw.AddFrame(video);
//}
//aw.CloseStreams();
//aw.CloseFile();
////-----