* Added wxMMedia in the repository so people interrested in it can work on it

* WARNING! It is quite unstable on Windows and it doesn't work on Linux for the moment because I didn't finish fixing the CODEC stream. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@975 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1998-11-09 18:37:38 +00:00
parent ea57084d10
commit 4d6306eb4d
54 changed files with 7666 additions and 0 deletions
--- a/utils/wxMMedia/sndau.cpp
+++ b/utils/wxMMedia/sndau.cpp
@@ -0,0 +1,114 @@
+// /////////////////////////////////////////////////////////////////////////////
+// Name:       sndau.cpp
+// Purpose:    wxMMedia Sun Audio File Codec
+// Author:     Guilhem Lavaux
+// Created:    1998
+// Updated:
+// Copyright:  (C) 1998, Guilhem Lavaux
+// License:    wxWindows license
+// /////////////////////////////////////////////////////////////////////////////
+#ifdef __GNUG__
+#pragma implementation "sndau.h"
+#endif
+
+#include "mmriff.h"
+#include "sndfile.h"
+#include "sndau.h"
+
+#define AU_ISDN_ULAW 1
+#define AU_PCM_8BITS 2
+#define AU_PCM_16BITS 3
+#define AU_ADPCM 23
+
+wxSndAuCodec::wxSndAuCodec()
+  : wxSndFileCodec()
+{
+}
+
+wxSndAuCodec::wxSndAuCodec(wxInputStream& s, bool preload, bool seekable)
+  : wxSndFileCodec(s, preload, seekable)
+{
+}
+
+wxSndAuCodec::wxSndAuCodec(wxOutputStream& s, bool seekable)
+  : wxSndFileCodec(s, seekable)
+{
+}
+
+wxSndAuCodec::wxSndAuCodec(const wxString& fname)
+  : wxSndFileCodec(fname)
+{
+}
+
+wxSndAuCodec::~wxSndAuCodec()
+{
+}
+
+wxUint32 wxSndAuCodec::PrepareToPlay()
+{
+  wxString id;
+  char temp_buf[5];
+  int offset, srate, codec, ch_count;
+  size_t len;
+
+  m_istream->SeekI(0);
+
+  m_istream->Read(temp_buf, 4);
+  temp_buf[4] = 0;
+
+  id = temp_buf;
+  if (id != ".snd") {
+    m_mmerror = wxMMFILE_INVALID;
+    return 0;
+  }
+
+#define READ_BE_32(i) \
+m_istream->Read(temp_buf, 4); \
+i = (unsigned long)temp_buf[0] << 24; \
+i |= (unsigned long)temp_buf[1] << 16; \
+i |= (unsigned long)temp_buf[2] << 8; \
+i |= (unsigned long)temp_buf[3];
+
+  READ_BE_32(offset);
+  READ_BE_32(len);
+  READ_BE_32(codec);
+  READ_BE_32(srate);
+  READ_BE_32(ch_count);
+
+  m_sndformat.SetSampleRate(srate);
+  m_sndformat.SetChannels(ch_count);
+  switch (codec) {
+  case AU_ISDN_ULAW:
+    ChangeCodec(WXSOUND_ULAW);
+    break;
+  case AU_PCM_8BITS:
+    ChangeCodec(WXSOUND_PCM);
+    m_sndformat.SetByteOrder(wxSND_SAMPLE_LE);
+    m_sndformat.SetSign(wxSND_SAMPLE_SIGNED);
+    break;
+  case AU_PCM_16BITS:
+    ChangeCodec(WXSOUND_PCM);
+    m_sndformat.SetByteOrder(wxSND_SAMPLE_LE);
+    m_sndformat.SetSign(wxSND_SAMPLE_SIGNED);
+    break;
+  case AU_ADPCM:
+    ChangeCodec(WXSOUND_ADPCM);
+    break;
+  }
+  return len;
+}
+
+bool wxSndAuCodec::OnNeedData(char *buf, wxUint32 size)
+{
+  return m_istream->Read(buf, size).LastError();
+}
+
+bool wxSndAuCodec::OnWriteData(char *buf, wxUint32 size)
+{
+  return m_ostream->Write(buf, size).LastError();
+}
+
+bool wxSndAuCodec::PrepareToRecord(wxUint32 file_size)
+{
+  return FALSE;
+}