/// <summary>
/// Handle chunk elements found in the AVI file. Ignores unknown chunks and
/// </summary>
/// <param name="rp"></param>
/// <param name="FourCC"></param>
/// <param name="unpaddedLength"></param>
/// <param name="paddedLength"></param>
private void ProcessAVIChunk(RiffParser rp, int FourCC, int unpaddedLength, int paddedLength)
{
if (AviRiffData.ckidMainAVIHeader == FourCC)
{
// Main AVI header
DecodeAVIHeader(rp, paddedLength);
}
else if (AviRiffData.ckidAVIStreamHeader == FourCC)
{
// Stream header
DecodeAVIStream(rp, paddedLength);
}
else if (AviRiffData.ckidAVIISFT == FourCC)
{
Byte[] ba = new byte[paddedLength];
rp.ReadData(ba, 0, paddedLength);
StringBuilder sb = new StringBuilder(unpaddedLength);
for (int i = 0; i < unpaddedLength; ++i)
{
if (0 != ba[i])
{
sb.Append((char)ba[i]);
}
}
m_isft = sb.ToString();
}
else
{
// Unknon chunk - skip
rp.SkipData(paddedLength);
}
}
private void ProcessWaveChunk(RiffParser rp, int FourCC, int unpaddedLength, int length)
{
// Is this a 'fmt' chunk?
if (AviRiffData.ckidWaveFMT == FourCC)
{
DecodeWave(rp, length);
}
else
{
rp.SkipData(length);
}
}
/// <summary>
/// Handle List elements found in the AVI file. Ignores unknown lists and recursively looks
/// at the content of known lists.
/// </summary>
/// <param name="rp"></param>
/// <param name="FourCC"></param>
/// <param name="length"></param>
private void ProcessAVIList(RiffParser rp, int FourCC, int length)
{
RiffParser.ProcessChunkElement pac = ProcessAVIChunk;
RiffParser.ProcessListElement pal = ProcessAVIList;
// Is this the header?
if ((AviRiffData.ckidAVIHeaderList == FourCC) ||
(AviRiffData.ckidAVIStreamList == FourCC) ||
(AviRiffData.ckidINFOList == FourCC))
{
while (length > 0)
{
if (false == rp.ReadElement(ref length, pac, pal))
{
break;
}
}
}
else
{
// Unknown lists - ignore
rp.SkipData(length);
}
}
/// <summary>
/// Default list element handler - skip the entire list
/// </summary>
/// <param name="rp"></param>
/// <param name="FourCC"></param>
/// <param name="length"></param>
private void ProcessList(RiffParser rp, int FourCC, int length)
{
rp.SkipData(length);
}
/// <summary>
/// Handle List elements found in the AVI file. Ignores unknown lists and recursively looks
/// at the content of known lists.
/// </summary>
/// <param name="rp">
/// </param>
/// <param name="FourCC">
/// </param>
/// <param name="length">
/// </param>
private void ProcessAVIList(RiffParser rp, int FourCC, int length)
{
RiffParser.ProcessChunkElement pac = this.ProcessAVIChunk;
RiffParser.ProcessListElement pal = this.ProcessAVIList;
// Is this the header?
if ((AviRiffData.ckidAVIHeaderList == FourCC) || (AviRiffData.ckidAVIStreamList == FourCC) || (AviRiffData.ckidINFOList == FourCC))
{
while (length > 0)
{
if (false == rp.ReadElement(ref length, pac, pal))
{
break;
}
}
}
else
{
// Unknown lists - ignore
rp.SkipData(length);
}
}
/// <summary>
/// The process wave chunk.
/// </summary>
/// <param name="rp">
/// The rp.
/// </param>
/// <param name="FourCC">
/// The four cc.
/// </param>
/// <param name="unpaddedLength">
/// The unpadded length.
/// </param>
/// <param name="length">
/// The length.
/// </param>
private void ProcessWaveChunk(RiffParser rp, int FourCC, int unpaddedLength, int length)
{
// Is this a 'fmt' chunk?
if (AviRiffData.ckidWaveFMT == FourCC)
{
this.DecodeWave(rp, length);
}
else
{
rp.SkipData(length);
}
}
/// <summary>
/// Handle chunk elements found in the AVI file. Ignores unknown chunks and
/// </summary>
/// <param name="rp">
/// </param>
/// <param name="FourCC">
/// </param>
/// <param name="unpaddedLength">
/// </param>
/// <param name="paddedLength">
/// </param>
private void ProcessAVIChunk(RiffParser rp, int FourCC, int unpaddedLength, int paddedLength)
{
if (AviRiffData.ckidMainAVIHeader == FourCC)
{
// Main AVI header
this.DecodeAVIHeader(rp, paddedLength);
}
else if (AviRiffData.ckidAVIStreamHeader == FourCC)
{
// Stream header
this.DecodeAVIStream(rp, paddedLength);
}
else if (AviRiffData.ckidAVIISFT == FourCC)
{
byte[] ba = new byte[paddedLength];
rp.ReadData(ba, 0, paddedLength);
StringBuilder sb = new StringBuilder(unpaddedLength);
for (int i = 0; i < unpaddedLength; ++i)
{
if (0 != ba[i])
{
sb.Append((char)ba[i]);
}
}
this.ISFT = sb.ToString();
}
else
{
// Unknon chunk - skip
rp.SkipData(paddedLength);
}
}
/// <summary>
/// Default list element handler - skip the entire list
/// </summary>
/// <param name="rp">
/// </param>
/// <param name="FourCC">
/// </param>
/// <param name="length">
/// </param>
private void ProcessList(RiffParser rp, int FourCC, int length)
{
rp.SkipData(length);
}
private void ProcessWaveChunk(RiffParser rp, int fourCc, int unpaddedLength, int length)
{
// Is this a 'fmt' chunk?
if (AviRiffData.CkidWaveFmt == fourCc)
{
DecodeWave(rp, length);
}
else
{
rp.SkipData(length);
}
}
/// <summary>
/// Handle List elements found in the AVI file. Ignores unknown lists and recursively looks
/// at the content of known lists.
/// </summary>
/// <param name="rp"></param>
/// <param name="fourCc"></param>
/// <param name="length"></param>
private void ProcessAviList(RiffParser rp, int fourCc, int length)
{
RiffParser.ProcessChunkElement pac = ProcessAviChunk;
RiffParser.ProcessListElement pal = ProcessAviList;
// Is this the header?
if ((AviRiffData.CkidAviHeaderList == fourCc)
|| (AviRiffData.CkidAviStreamList == fourCc)
|| (AviRiffData.CkidInfoList == fourCc))
{
while (length > 0)
{
if (false == rp.ReadElement(ref length, pac, pal))
{
break;
}
}
}
else
{
// Unknown lists - ignore
rp.SkipData(length);
}
}
/// <summary>
/// Handle chunk elements found in the AVI file. Ignores unknown chunks and
/// </summary>
/// <param name="rp"></param>
/// <param name="fourCc"></param>
/// <param name="unpaddedLength"></param>
/// <param name="paddedLength"></param>
private void ProcessAviChunk(RiffParser rp, int fourCc, int unpaddedLength, int paddedLength)
{
if (AviRiffData.CkidMainAviHeader == fourCc)
{
// Main AVI header
DecodeAviHeader(rp, paddedLength);
}
else if (AviRiffData.CkidAviStreamHeader == fourCc)
{
// Stream header
DecodeAviStream(rp, paddedLength);
}
else if (AviRiffData.CkidAviisft == fourCc)
{
Byte[] ba = new byte[paddedLength];
rp.ReadData(ba, 0, paddedLength);
StringBuilder sb = new StringBuilder(unpaddedLength);
for (int i = 0; i < unpaddedLength; ++i)
{
if (0 != ba[i]) sb.Append((char)ba[i]);
}
Isft = sb.ToString();
}
else
{
// Unknon chunk - skip
rp.SkipData(paddedLength);
}
}
