Removed wxMMedia

[wxWidgets.git] / utils / wxMMedia2 / lib / sndwav.cpp

diff --git a/utils/wxMMedia2/lib/sndwav.cpp b/utils/wxMMedia2/lib/sndwav.cpp
new file mode 100644 (file)
index 0000000..be6f1b3
--- /dev/null
+++ b/utils/wxMMedia2/lib/sndwav.cpp
@@ -0,0 +1,221 @@
+// --------------------------------------------------------------------------
+// Name: sndwav.cpp
+// Purpose:
+// Date: 08/11/1999
+// Author: Guilhem Lavaux <lavaux@easynet.fr> (C) 1999
+// CVSID: $Id$
+// --------------------------------------------------------------------------
+#ifdef __GNUG__
+#pragma implementation "sndwav.cpp"
+#endif
+
+#include <wx/defs.h>
+#include <wx/stream.h>
+#include <wx/datstrm.h>
+#include <wx/filefn.h>
+#include "sndbase.h"
+#include "sndcodec.h"
+#include "sndfile.h"
+#include "sndpcm.h"
+#include "sndwav.h"
+
+#define BUILD_SIGNATURE(a,b,c,d) (((wxUint32)a) | (((wxUint32)b) << 8) | (((wxUint32)c) << 16)  | (((wxUint32)d) << 24)) 
+
+#define RIFF_SIGNATURE BUILD_SIGNATURE('R','I','F','F')
+#define WAVE_SIGNATURE BUILD_SIGNATURE('W','A','V','E')
+#define FMT_SIGNATURE BUILD_SIGNATURE('f','m','t',' ')
+#define DATA_SIGNATURE BUILD_SIGNATURE('d','a','t','a')
+
+#define HEADER_SIZE 4+4 + 4+4+16 + 4+4
+ // 4+4 => NAME + LEN
+ // 16 => fmt size
+
+wxSoundWave::wxSoundWave(wxInputStream& stream, wxSoundStream& io_sound)
+  : wxSoundFileStream(stream, io_sound)
+{
+}
+
+wxSoundWave::wxSoundWave(wxOutputStream& stream, wxSoundStream& io_sound)
+  : wxSoundFileStream(stream, io_sound)
+{
+}
+
+wxSoundWave::~wxSoundWave()
+{
+}
+
+#define FAIL_WITH(condition, err) if (condition) { m_snderror = err; return FALSE; }
+
+bool wxSoundWave::CanRead()
+{
+  wxUint32 len, signature;
+  m_snderror = wxSOUND_NOERR;
+
+  FAIL_WITH(m_input->Read(&signature, 4).LastRead() != 4, wxSOUND_INVSTRM);
+
+  if (wxUINT32_SWAP_ON_BE(signature) != RIFF_SIGNATURE) {
+    m_input->Ungetch(&signature, 4);
+    return FALSE;
+  }
+
+  m_input->Read(&len, 4);
+  FAIL_WITH(m_input->LastRead() != 4, wxSOUND_INVSTRM);
+
+  FAIL_WITH(m_input->Read(&signature, 4).LastRead() != 4, wxSOUND_INVSTRM);
+  if (wxUINT32_SWAP_ON_BE(signature) != WAVE_SIGNATURE) {
+    m_input->Ungetch(&signature, 4);
+    return FALSE;
+  }
+
+  m_input->Ungetch("RIFF", 4);
+  m_input->Ungetch(&len, 4);
+  m_input->Ungetch("WAVE", 4);
+
+  return TRUE;
+}
+
+bool wxSoundWave::PrepareToPlay()
+{
+  wxUint32 signature, len;
+  bool end_headers;
+
+  if (!m_input) {
+    m_snderror = wxSOUND_INVSTRM;
+    return FALSE;
+  }
+
+  wxDataInputStream data(*m_input);
+  data.BigEndianOrdered(FALSE);
+
+  FAIL_WITH(m_input->Read(&signature, 4).LastRead() != 4, wxSOUND_INVSTRM);
+  FAIL_WITH(wxUINT32_SWAP_ON_BE(signature) != RIFF_SIGNATURE, wxSOUND_INVSTRM);
+     // "RIFF"
+
+  len = data.Read32();
+  FAIL_WITH(m_input->LastRead() != 4, wxSOUND_INVSTRM);
+    // dummy len
+ 
+  FAIL_WITH(m_input->Read(&signature, 4).LastRead() != 4, wxSOUND_INVSTRM);
+  FAIL_WITH(wxUINT32_SWAP_ON_BE(signature) != WAVE_SIGNATURE, wxSOUND_INVSTRM);
+     // "WAVE"
+ 
+  end_headers = FALSE;
+  while (!end_headers) {
+    FAIL_WITH(m_input->Read(&signature, 4).LastRead() != 4, wxSOUND_INVSTRM);
+
+    len = data.Read32();
+    FAIL_WITH(m_input->LastRead() != 4, wxSOUND_INVSTRM);
+
+    switch (wxUINT32_SWAP_ON_BE(signature)) {
+    case FMT_SIGNATURE: {  // "fmt "
+      wxUint16 format, channels, byte_p_spl, bits_p_spl;
+      wxUint32 sample_fq, byte_p_sec;
+      wxSoundFormatPcm sndformat;
+
+      data >> format >> channels >> sample_fq 
+           >> byte_p_sec >> byte_p_spl >> bits_p_spl;
+      FAIL_WITH(format != 1, wxSOUND_NOCODEC);
+      
+      sndformat.SetSampleRate(sample_fq);
+      sndformat.SetBPS(bits_p_spl);
+      sndformat.SetChannels(channels);
+      sndformat.Signed(TRUE);
+      sndformat.SetOrder(wxLITTLE_ENDIAN);
+
+      if (!SetSoundFormat(sndformat))
+        return FALSE;
+      m_input->SeekI(len-16, wxFromCurrent);
+      break;
+    }
+    case DATA_SIGNATURE: // "data"
+      end_headers = TRUE;
+      break;
+    default:
+      m_input->SeekI(len, wxFromCurrent);
+      break;
+    }
+  }
+  return TRUE;
+}
+
+bool wxSoundWave::PrepareToRecord(unsigned long time)
+{
+#define WRITE_SIGNATURE(sig) \
+signature = sig; \
+signature = wxUINT32_SWAP_ON_BE(signature); \
+FAIL_WITH(m_output->Write(&signature, 4).LastWrite() != 4, wxSOUND_INVSTRM);
+
+  wxUint32 signature, len;
+
+  if (!m_output) {
+    m_snderror = wxSOUND_INVSTRM;
+    return FALSE;
+  }
+
+  wxDataOutputStream data(*m_output);
+  data.BigEndianOrdered(FALSE);
+
+  len = m_sndformat->GetByteFromTime(time);
+
+  len += HEADER_SIZE;
+
+  WRITE_SIGNATURE(RIFF_SIGNATURE);
+
+  data << len;
+  FAIL_WITH(m_output->LastWrite() != 4, wxSOUND_INVSTRM);
+
+  WRITE_SIGNATURE(WAVE_SIGNATURE);
+
+  {
+    wxUint16 format, channels, byte_p_spl, bits_p_spl;
+    wxUint32 sample_fq, byte_p_sec;
+    wxSoundFormatPcm *pcm;
+
+    if (m_sndformat->GetType() != wxSOUND_PCM) {
+      m_snderror = wxSOUND_NOCODEC;
+      return FALSE;
+    }
+
+    pcm = (wxSoundFormatPcm *)(m_sndformat->Clone());
+
+    WRITE_SIGNATURE(FMT_SIGNATURE);
+    data.Write32(16);
+
+    sample_fq  = pcm->GetSampleRate();
+    bits_p_spl = pcm->GetBPS();
+    channels   = pcm->GetChannels();
+    byte_p_spl = pcm->GetBPS() / 8;
+    byte_p_sec = pcm->GetByteFromTime(1);
+    format     = 1;
+    data << format << channels << sample_fq
+         << byte_p_sec << byte_p_spl << bits_p_spl;
+
+    pcm->Signed(TRUE);
+    pcm->SetOrder(wxLITTLE_ENDIAN);
+    
+    if (!SetSoundFormat(*pcm))
+      return FALSE;
+
+    delete pcm;
+  }
+
+  WRITE_SIGNATURE(DATA_SIGNATURE);
+  data.Write32(m_sndformat->GetByteFromTime(time));
+  return TRUE;
+}
+
+bool wxSoundWave::FinishRecording()
+{
+  // TODO: Update headers when we stop before the specified time (if possible)
+  return TRUE;
+}
+
+size_t wxSoundWave::GetData(void *buffer, size_t len)
+{
+  return m_input->Read(buffer, len).LastRead();
+}
+
+size_t wxSoundWave::PutData(const void *buffer, size_t len)
+{
+  return m_output->Write(buffer, len).LastWrite();
+}