private void Seek(long mediaPosition, double playbackRate, bool seekToSyncPoint)
{
viewer.Stop();
lock (seekingLock)
{
// Seek to the closest video sync point in the file.
fileParser.Seek(ref mediaPosition);
if (!seekToSyncPoint)
{
// make viewer preroll all samples before this position
viewer.SetStartTime((long)mediaPosition);
}
if (playbackRate != viewer.PlaybackRate)
{
viewer.PlaybackRate = playbackRate;
}
if (CurrentPlaybackState == Enum_VideoPlaybackState.Paused)
{
viewer.Pause();
}
else
{
viewer.Start();
}
}
}
void RenderThread(object obj)
{
IntPtr hWnd = (IntPtr)obj;
AxisMediaViewer viewer = new AxisMediaViewer();
viewer.VMR9 = true;
try
{
using (FileStream inFileStream = new FileStream(videoPath, FileMode.Open)) using (BinaryReader inFile = new BinaryReader(inFileStream, Encoding.UTF32))
{
if (inFile.PeekChar() != -1)
{
int mediaTypeSize = inFile.ReadInt32();
byte[] mediaTypeBuffer = inFile.ReadBytes(mediaTypeSize);
long startPosition = inFile.BaseStream.Position;
while (true)
{
viewer.Init(1, mediaTypeBuffer, hWnd.ToInt64());
viewer.Start();
while (inFile.PeekChar() != -1)
{
// Read frame data
int sampleType = inFile.ReadInt32();
int sampleFlags = inFile.ReadInt32();
ulong startTime = inFile.ReadUInt64();
ulong stopTime = inFile.ReadUInt64();
int bufferSize = inFile.ReadInt32();
byte[] bufferBytes = inFile.ReadBytes(bufferSize);
// Check that it’s not an audio sample.
if (sampleType != (int)AMV_VIDEO_SAMPLE_TYPE.AMV_VST_MPEG4_AUDIO)
{
// Let the viewer render the frame
viewer.SetVideoPosition(VideoXPos, VideoYPos, VideoXPos + VideoWidth, VideoYPos + VideoHeight);
viewer.RenderVideoSample(sampleFlags, startTime, stopTime, bufferBytes);
}
}
inFile.BaseStream.Position = startPosition;
viewer.Stop();
}
}
else
{
Console.WriteLine(string.Format("File at {0} is empty or malformed", videoPath));
Environment.Exit(0);
}
}
}
catch (COMException e)
{
MessageBox.Show(string.Format("Exception {0}", e.Message));
}
}
private void Axis_VideoColse()
{
if (parser != null)
{
if (parser.Status == (int)AMP_STATUS.AMP_STATUS_RUNNING)
{
parser.Stop();
viewer.Stop();
}
if (CurrentVideoPlaySet.VideoRecordEnable && lstVideoRecord.Count > 0)
{
Axis_GenerateRecord(CurrentVideoPlaySet.VideoRecordFilePath);
}
parser.OnVideoSample -= OnVideoSample;
parser.OnAudioSample -= OnAudioSample;
parser.OnMetaDataSample -= OnMetaDataSample;
parser.OnError -= OnError;
viewer.OnDecodedImage -= OnDecodedImage;
Marshal.FinalReleaseComObject(viewer);
viewer = null;
Marshal.FinalReleaseComObject(parser);
parser = null;
VideoRecordStatus = false;
}
}
void renderThreadDoUpdate(object obj)
{
if (!File.Exists(m_videoPath))
{
Console.WriteLine("startRenderThread: Could not find file {0}, exiting", m_videoPath);
throw new Exception("File Not Found");
}
using (FileStream inFileStream = new FileStream(m_videoPath, FileMode.Open, FileAccess.Read))
{
using (BinaryReader inFile = new BinaryReader(inFileStream, Encoding.UTF32))
{
if (inFile.PeekChar() == -1)
{
Console.WriteLine("startRenderThread: file {0} is empty, exiting", m_videoPath);
throw new Exception("File is Empty");
}
IntPtr hWnd = (IntPtr)obj;
int mediaTypeSize = inFile.ReadInt32();
byte[] mediaTypeBuffer = inFile.ReadBytes(mediaTypeSize);
long headerOffset = inFileStream.Position; // save the width of the header so we don't read it again.
while (true)
{
AxisMediaViewer viewer = new AxisMediaViewer();
viewer.VMR9 = true;
try
{
viewer.Init(0, mediaTypeBuffer, hWnd.ToInt64());
}
catch (Exception e)
{
Console.WriteLine("Got Exception initializing player: {0} exiting", e);
throw new Exception("Failed to Initialize Player");
}
viewer.SetVideoPosition(m_videoXPos, m_videoYPos, m_videoXPos + m_videoWidth, m_videoYPos + m_videoHeight);
viewer.Start();
while (inFile.PeekChar() != -1)
{
// Read frame data
int sampleType = inFile.ReadInt32();
int sampleFlags = inFile.ReadInt32();
ulong startTime = inFile.ReadUInt64();
ulong stopTime = inFile.ReadUInt64();
int bufferSize = inFile.ReadInt32();
byte[] bufferBytes = inFile.ReadBytes(bufferSize);
if (sampleType != (int)AMV_VIDEO_SAMPLE_TYPE.AMV_VST_MPEG4_AUDIO && bufferSize > 0)
{
try
{
viewer.RenderVideoSample(sampleFlags, startTime, stopTime, bufferBytes);
}
catch (Exception e)
{
Console.WriteLine("Caught Exception {0} when trying to render frame.", e);
}
}
}
inFileStream.Position = headerOffset;
viewer.Stop();
}
}
}
}
