protected override HRESULT LoadTracks()
{
uint size = 0;
int trackSize = _cdrom.ReadTrack(_track, null, ref size, null);
if (size > 0)
{
WaveFormatEx wfex = WaveFormatEx.Cdda;
AMMediaType mt = new AMMediaType();
mt.majorType = MediaType.Audio;
mt.subType = MediaSubType.PCM;
mt.sampleSize = wfex.nBlockAlign;
mt.fixedSizeSamples = true;
mt.SetFormat(wfex);
m_Tracks.Add(new CdTrack(this, mt));
m_llDataOffset = 0;
m_rtDuration = (UNITS * (size - m_llDataOffset)) / wfex.nAvgBytesPerSec;
return(S_OK);
}
_buffer = new byte[size];
return(S_FALSE);
}
//Can't get this to work!!
AMMediaType getAlacMediaType()
{
byte[] extraInfo = new byte[] { 0x00, 0x00, 0x00, 0x24, 0x61, 0x6C, 0x61, 0x63, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x60, 0x00, 0x10, 0x28, 0x0E, 0x0A, 0x02, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAC, 0x44 };
WaveFormatEx w = new WaveFormatEx();
w.wBitsPerSample = 16;
w.cbSize = (ushort)extraInfo.Length;
w.nChannels = 2;
w.nSamplesPerSec = 44100;
w.wFormatTag = 27745;
w.nAvgBytesPerSec = 87765;
w.nBlockAlign = 4;
AMMediaType amt = new AMMediaType();
amt.majorType = MediaType.Audio;
amt.subType = new Guid("63616C61-0000-0010-8000-00AA00389B71"); //ALAC
amt.formatType = FormatType.WaveEx;
amt.SetFormat(w);
amt.AddFormatExtraData(extraInfo);
amt.fixedSizeSamples = true;
amt.sampleSize = 4;
return(amt);
}
/// <summary>
/// Gets the type of the media.
/// </summary>
/// <param name="pMediaType">Type of the p media.</param>
/// <returns></returns>
public override int GetMediaType(ref AMMediaType pMediaType)
{
pMediaType.majorType = MediaType.Video;
pMediaType.subType = MediaSubType.RGB32;
pMediaType.formatType = FormatType.VideoInfo;
VideoInfoHeader vih = new VideoInfoHeader();
vih.AvgTimePerFrame = m_nAvgTimePerFrame;
vih.BmiHeader = new BitmapInfoHeader();
vih.BmiHeader.Size = Marshal.SizeOf(typeof(BitmapInfoHeader));
vih.BmiHeader.Compression = 0;
vih.BmiHeader.BitCount = 32;
vih.BmiHeader.Width = m_nWidth;
vih.BmiHeader.Height = m_nHeight;
vih.BmiHeader.Planes = 1;
vih.BmiHeader.ImageSize = vih.BmiHeader.Width * vih.BmiHeader.Height * vih.BmiHeader.BitCount / 8;
vih.SrcRect = new DsRect();
vih.TargetRect = new DsRect();
AMMediaType.SetFormat(ref pMediaType, ref vih);
pMediaType.fixedSizeSamples = true;
pMediaType.sampleSize = vih.BmiHeader.ImageSize;
return(NOERROR);
}
protected override HRESULT LoadTracks()
{
string contentType = _stream.ContentType;
Logger.LogTrace("ShoutCast::LoadTracks contentType={0}", contentType);
AMMediaType mt = new AMMediaType();
switch (contentType)
{
case "audio/mpg":
case "audio/mpeg":
{
BaseClasses.Mp3WaveFormat wfex = new BaseClasses.Mp3WaveFormat();
wfex.cbSize = 12; // MPEGLAYER3_WFX_EXTRA_BYTES
wfex.fdwFlags = 0; // MPEGLAYER3_FLAG_PADDING_ISO
wfex.nAvgBytesPerSec = (_stream.Bitrate * 1024 / 8);
wfex.nBlockAlign = 1; // must be 1 for streamed MP3
wfex.nBlockSize = 522; // MP3_BLOCK_SIZE magic number
wfex.nChannels = 2; // Stereo
wfex.nCodecDelay = 0; // must be 0
wfex.nFramesPerBlock = 1; // must be 1
wfex.nSamplesPerSec = _stream.SampleRate;
wfex.wBitsPerSample = 0; // must be 0
wfex.wFormatTag = 0x0055; // WAVE_FORMAT_MPEGLAYER3
wfex.wID = 1; // MPEGLAYER3_ID_MPEG
mt.majorType = MediaType.Audio;
mt.subType = MediaSubType.MPEG1Audio;
mt.sampleSize = 0;
mt.fixedSizeSamples = false;
mt.SetFormat(wfex);
}
break;
//case "audio/aac":
//case "audio/aacp":
// {
// WaveFormatEx wfex = WaveFormatEx.Cdda;
// mt.majorType = MediaType.Audio;
// mt.subType = MediaSubType.PCM;
// mt.sampleSize = wfex.nBlockAlign;
// mt.fixedSizeSamples = true;
// mt.SetFormat(wfex);
// }
// break;
}
m_Tracks.Add(new ShoutcastStreamTrack(this, mt));
return(S_OK);
}
public static AMMediaType E_AC3(InputstreamInfo streamInfo)
{
WaveFormatEx wf = new WaveFormatEx();
wf.wFormatTag = 8192;
wf.nBlockAlign = 24;
wf.wBitsPerSample = 32;
wf.cbSize = 0;
AMMediaType amt = new AMMediaType();
AssignStreamInfoFields(streamInfo, ref wf, ref amt);
amt.majorType = MediaType.Audio;
amt.subType = MEDIASUBTYPE_DOLBY_DDPLUS;
amt.temporalCompression = false;
amt.fixedSizeSamples = true;
amt.SetFormat(wf);
return(amt);
}
public static AMMediaType AAC_LC(InputstreamInfo streamInfo)
{
WaveFormatEx wf = new WaveFormatEx();
wf.wFormatTag = 255;
wf.nBlockAlign = 1;
wf.wBitsPerSample = 16;
wf.cbSize = 0;
AMMediaType amt = new AMMediaType();
AssignStreamInfoFields(streamInfo, ref wf, ref amt);
amt.majorType = MediaType.Audio;
amt.subType = MEDIASUBTYPE_ADTS; // Works better than RAW_AAC1 (tested with Amazon Prime and 7TV)
amt.temporalCompression = false;
amt.fixedSizeSamples = true;
amt.SetFormat(wf);
return(amt);
}
/// <summary>
/// AnnexB formatted h264 bitstream
/// </summary>
/// <param name="streamInfo"></param>
/// <returns></returns>
public static AMMediaType H264_AnnexB(InputstreamInfo streamInfo)
{
int width = (int)streamInfo.Width;
int height = (int)streamInfo.Height;
if (streamInfo.ExtraData.Length > 0)
{
var codecData = new H264CodecData(streamInfo.ExtraData);
SPSUnit spsUnit = new SPSUnit(codecData.SPS);
width = spsUnit.Width();
height = spsUnit.Height();
}
VideoInfoHeader2 vi = new VideoInfoHeader2();
vi.SrcRect.right = width;
vi.SrcRect.bottom = height;
vi.TargetRect.right = width;
vi.TargetRect.bottom = height;
int hcf = HCF(width, height);
vi.PictAspectRatioX = width / hcf;
vi.PictAspectRatioY = height / hcf;
vi.BmiHeader.Width = width;
vi.BmiHeader.Height = height;
vi.BmiHeader.Planes = 1;
vi.BmiHeader.Compression = FOURCC_H264;
AMMediaType amt = new AMMediaType();
amt.majorType = MediaType.Video;
amt.subType = MediaSubType.H264;
amt.temporalCompression = true;
amt.fixedSizeSamples = false;
amt.sampleSize = 1;
amt.SetFormat(vi);
return(amt);
}
/// <summary>
/// Sets AMMediaType format data with Mpeg2VideoInfo and optional extra data.
/// </summary>
/// <param name="vi"></param>
/// <param name="extraData"></param>
/// <param name="amt"></param>
static void SetFormat(Mpeg2VideoInfo vi, byte[] extraData, AMMediaType amt)
{
int cb = Marshal.SizeOf(vi);
int add = extraData == null || extraData.Length < 4 ? 0 : extraData.Length - 4;
IntPtr ptr = Marshal.AllocCoTaskMem(cb + add);
try
{
Marshal.StructureToPtr(vi, ptr, false);
if (extraData != null)
{
Marshal.Copy(extraData, 0, ptr + cb - 4, extraData.Length);
}
amt.SetFormat(ptr, cb + add);
amt.formatType = FormatType.Mpeg2Video;
}
finally
{
Marshal.FreeCoTaskMem(ptr);
}
}
AMMediaType getWaveMediaType(WaveStream stream)
{
WaveFormatEx w = new WaveFormatEx();
w.wBitsPerSample = (ushort)stream.Header.BitsPerSample;
w.cbSize = 0;
w.nChannels = (ushort)stream.Header.Channels;
w.nSamplesPerSec = stream.Header.SampleRate;
w.wFormatTag = 1;
int bytesPerSample = stream.Header.Channels * (stream.Header.BitsPerSample / 8);
w.nAvgBytesPerSec = w.nSamplesPerSec * bytesPerSample;
w.nBlockAlign = (ushort)bytesPerSample;
AMMediaType amt = new AMMediaType();
amt.majorType = MediaType.Audio;
amt.subType = MediaSubType.PCM;
amt.formatType = FormatType.WaveEx;
amt.SetFormat(w);
amt.fixedSizeSamples = true;
amt.sampleSize = 4;
return(amt);
}
public int GetMediaType(int iPosition, ref AMMediaType pMediaType)
{
if (iPosition < 0)
{
return(E_INVALIDARG);
}
VideoStreamConfigCaps _caps;
GetDefaultCaps(0, out _caps);
int nWidth = 0;
int nHeight = 0;
if (iPosition == 0)
{
if (Pins.Count > 0 && Pins[0].CurrentMediaType.majorType == MediaType.Video)
{
pMediaType.Set(Pins[0].CurrentMediaType);
return(NOERROR);
}
nWidth = _caps.InputSize.Width;
nHeight = _caps.InputSize.Height;
}
else
{
iPosition--;
nWidth = _caps.MinOutputSize.Width + _caps.OutputGranularityX * iPosition;
nHeight = _caps.MinOutputSize.Height + _caps.OutputGranularityY * iPosition;
if (nWidth > _caps.MaxOutputSize.Width || nHeight > _caps.MaxOutputSize.Height)
{
return(VFW_S_NO_MORE_ITEMS);
}
}
pMediaType.majorType = DirectShow.MediaType.Video;
pMediaType.formatType = DirectShow.FormatType.VideoInfo;
VideoInfoHeader vih = new VideoInfoHeader();
vih.AvgTimePerFrame = m_nAvgTimePerFrame;
vih.BmiHeader.Compression = BI_RGB;
vih.BmiHeader.BitCount = (short)m_nBitCount;
vih.BmiHeader.Width = nWidth;
vih.BmiHeader.Height = nHeight;
vih.BmiHeader.Planes = 1;
vih.BmiHeader.ImageSize = vih.BmiHeader.Width * Math.Abs(vih.BmiHeader.Height) * vih.BmiHeader.BitCount / 8;
if (vih.BmiHeader.BitCount == 32)
{
pMediaType.subType = DirectShow.MediaSubType.RGB32;
}
if (vih.BmiHeader.BitCount == 24)
{
pMediaType.subType = DirectShow.MediaSubType.RGB24;
}
AMMediaType.SetFormat(ref pMediaType, ref vih);
pMediaType.fixedSizeSamples = true;
pMediaType.sampleSize = vih.BmiHeader.ImageSize;
return(NOERROR);
}
