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Fixed wxMemoryOutputStream (it wasn't working at all)

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Fixed wxStreamBuffer to support features of wxMemoryOutputStream
wxMMedia2 updates (various fixes)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4406 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Guilhem Lavaux
1999-11-06 17:44:03 +00:00
parent 81915974f6
commit 56dc1ffd50
20 changed files with 257 additions and 87 deletions
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38
utils/wxMMedia2/lib/sndaiff.cpp
View File

@@ -42,6 +42,44 @@ wxSoundAiff::~wxSoundAiff()
{
}
bool wxSoundAiff::CanRead()
{
wxUint32 signature1, signature2, len;
if (m_input->Read(&signature1, 4).LastRead() != 4)
return FALSE;
if (wxUINT32_SWAP_ON_BE(signature1) != FORM_SIGNATURE) {
m_input->Ungetch(&signature1, 4);
return FALSE;
}
m_input->Read(&len, 4);
if (m_input->LastRead() != 4) {
m_input->Ungetch(&len, m_input->LastRead());
m_input->Ungetch(&signature1, 4);
return FALSE;
}
if (m_input->Read(&signature2, 4).LastRead() != 4) {
m_input->Ungetch(&signature2, m_input->LastRead());
m_input->Ungetch(&len, 4);
m_input->Ungetch(&signature1, 4);
return FALSE;
}
m_input->Ungetch(&signature2, 4);
m_input->Ungetch(&len, 4);
m_input->Ungetch(&signature1, 4);
if (
wxUINT32_SWAP_ON_BE(signature2) != AIFF_SIGNATURE &&
wxUINT32_SWAP_ON_BE(signature2) != AIFC_SIGNATURE)
return FALSE;
return TRUE;
}
#define FAIL_WITH(condition, err) if (condition) { m_snderror = err; return FALSE; }
bool wxSoundAiff::PrepareToPlay()