public CAudio(CAudio oldCAudio)
{
this.AudioCodec = oldCAudio.AudioCodec;
this.m_iAudioCodec = oldCAudio.m_iAudioCodec;
this.AudioBitRate = oldCAudio.AudioBitRate;
this.m_fAudioBitRate = oldCAudio.m_fAudioBitRate;
this.Duration = oldCAudio.Duration;
this.m_tpDuration = oldCAudio.m_tpDuration;
}
public void RemoveAudioFlux(CAudio oldCAudio)
{
if (oldCAudio == null)
{
return;
}
if (this.AudioFlux != null)
{
if (this.AudioFlux.Contains(oldCAudio))
{
this.AudioFlux.Remove(oldCAudio);
}
}
}
public void AddAudioFlux(CAudio newCAudio)
{
if (newCAudio == null)
{
return;
}
if (this.AudioFlux == null)
{
this.AudioFlux = new System.Collections.ArrayList();
}
if (!this.AudioFlux.Contains(newCAudio))
{
this.AudioFlux.Add(newCAudio);
}
}
/**
* Parse the current file and load its characteristics.
*/
public override void loadFileCharacteristics()
{
byte [] buffer;
uint pos;
int c;
int size;
int fcc = 0;
uint a_c = 0;
uint v_c = 0;
int type = 0;
int scale = 0;
int rate = 0;
int length = 0;
uint cont = 1;
double fps = 0;
int readed_bytes = 0;
Encoding asciiEncoding = new ASCIIEncoding();
CAudio audioTrack = null;
Byte[] scan;
//int i;
//byte octet;
FileStream fileStream;
//Read some bytes from the AVI file
scan = new byte[15];
try
{
fileStream = new FileStream(CompleteFileName, FileMode.Open, FileAccess.Read);
readed_bytes = fileStream.Read(scan, 0, 12);
}
catch (Exception e)
{
Console.WriteLine("ERROR exception : " + e.Message);
return;
}
//Testing if the file is really an AVI file
if (!compareString(scan, avi_signature))
{
return;
}
//Looking for AVI data
while (cont != 0)
{
readed_bytes = fileStream.Read(scan, 0, 12);
if (readed_bytes == 0)
{
break;
}
b2DW(out size, scan, 4);
if (size < 4)
{
size = 4;
}
for (c = 0; c < 4; c++)
{
if (compareString(scan, patterns[c]))
{
break;
}
}
switch (c)
{
case 0:
//header reading
if (size > max_allowed_avi_header_size)
{
return; //header too big
}
buffer = new byte[size + safe_pad - 4 + 10000];
readed_bytes = fileStream.Read(buffer, 0, size - 4 + 10000);
if (readed_bytes == 0)
{
break;
}
pos = 76;
b2DWi(out fcc, buffer, pos);
while (pos < size)
{
switch (fcc)
{
case (int)fourcc.FOURCC_strh:
b2DW(out type, buffer, pos + 8);
b2DW(out scale, buffer, pos + 28);
b2DW(out rate, buffer, pos + 32);
b2DW(out length, buffer, pos + 40);
fps = (double)rate / (double)(scale != 0?scale:0x7FFFFFFF);
length = (int)(length / fps);
pos += 64;
fcc = 0;
break;
case (int)fourcc.FOURCC_strf:
switch (type)
{
//Found the video
case (int)fourcc.FOURCC_vids:
VideoFPS = (float)fps;
VideoDuration = new TimeSpan(0, 0, length);
VideoCodec = (string)codecs[b2DWv(buffer, pos + 24)];
DimensionsX = b2DWv(buffer, pos + 12);
DimensionsY = b2DWv(buffer, pos + 16);
if (debug == true)
{
Console.WriteLine("Scale: " + scale);
Console.WriteLine("Rate: " + rate);
Console.WriteLine("Length: " + length + " s");
Console.WriteLine("FPS: " + fps);
Console.WriteLine("X: " + b2DWv(buffer, pos + 12));
Console.WriteLine("Y:" + b2DWv(buffer, pos + 16));
Console.WriteLine("Codec: " + VideoCodec);
}
//pos+=40;
//ARGGGHHH, gros bidouillage!!
try
{
pos += System.UInt32.Parse(((int)(0x1074 - 24 + size - 8830)).ToString());
}
catch (Exception e)
{
Console.WriteLine("CAvi::LoadFileCharacteristics() - parse error " + e.Message);
return;
}
if (pos > size + safe_pad - 4 + 10000)
{
size = 0;
pos = 0;
}
v_c++;
break;
case (int)fourcc.FOURCC_auds:
//Found the audio
//TODO: find the codec!! Phoque!
//if(codec == "mp3")
audioTrack = new CMp3();
audioTrack.AudioBitRate = rate;
audioTrack.nbOfChannels = b2Wv(buffer, pos + 10);
audioTrack.Duration = new TimeSpan(0, 0, length);
if (debug == true)
{
Console.WriteLine("rate: " + rate + "Hz");
Console.WriteLine("Speakers: " + b2Wv(buffer, pos + 10));
//TODO : find this gayzou!
//Console.WriteLine("Codec: "+ b2Wv(buffer,pos+10));
}
AddAudioFlux(audioTrack);
a_c++;
size = 0;
break;
}
fcc = 0;
break;
}
//Damn it!!!
//INSb(ref fcc,buffer,pos);
b2DWi(out fcc, buffer, pos);
}
continue;
case 1:
//INFO reading
/** Let's do it later...*/
case 3:
//idx1 processing
/**TODO ?? */
cont = 0;
break;
}
fileStream.Seek(size - 4, SeekOrigin.Current);
}
fileStream.Close();
}
