HRESULT FttpSchemeHandler::WhenCreateByteStream(IMFAsyncResult*result) {
auto hr = MFEndCreateFile(result, &http_stream);
assert(!source_creator);
if (SUCCEEDED(hr)) hr = BeginCreateMediaSource();
if (FAILED(hr)) {
caller_result->SetStatus(hr);
hr = MFInvokeCallback(caller_result.Get());
}
return S_OK;
}
HRESULT CPlayer::OpenURLAsync(const WCHAR *sURL)
{
// 1. Create a new media session.
// 2. Create the media source.
// Create the media session.
HRESULT hr = S_OK;
CHECK_HR(hr = CreateSession());
// Create the media source.
CHECK_HR(hr = BeginCreateMediaSource(sURL, this, &m_pSourceResolver));
/////MADE ASYNCHRONOUS
m_state = OpenAsyncPending;
done:
if (FAILED(hr))
m_state = Closed;
return hr;
}
//create bytestream
//create media-source
HRESULT FttpSchemeHandler::BeginCreateObject(LPCWSTR url,
DWORD flags,
IPropertyStore* , // not used
IUnknown**cancel_cookie,
IMFAsyncCallback*callback,
IUnknown*s) {
if(cancel_cookie)
*cancel_cookie = nullptr;
if ((flags & MF_RESOLUTION_WRITE) || !(flags & MF_RESOLUTION_MEDIASOURCE))
return E_INVALIDARG;
if (caller_result)
return E_FAIL; // only one session allowed
uri = fttp_resolver().resolve(url);
auto hr = uri.validate() ? S_OK : E_INVALID_PROTOCOL_FORMAT;
IMFSchemeHandlerPtr pthis(this);
if (SUCCEEDED(hr)) hr = MFCreateAsyncResult(nullptr, callback, s, &caller_result);
if (SUCCEEDED(hr) && uri.type == fttp_type::url)
scatter_tar_file_handler().async_check(uri.true_url).then([this, pthis](scheme_check_result result) {
assert(!http_stream && !source_creator);
content_type = result.content_type;
CopyMemory(magic, result.maigic, sizeof(magic));
HRESULT hr = result.error; // (result.error < 0) ? (result.error | make_sure_negativei32) : S_OK;
if (SUCCEEDED(hr) && (http_stream || source_creator)) hr = E_FAIL;
if (SUCCEEDED(hr))
hr = MakeAndInitialize<ProgressiveHttpStream, IMFByteStream>(&http_stream, result.url.c_str(), result.content_length);
if (SUCCEEDED(hr)) hr = BeginCreateMediaSource();
if (FAILED(hr)) {
caller_result->SetStatus(hr);
hr = MFInvokeCallback(caller_result.Get());
}
});
else if (SUCCEEDED(hr)) {
auto fp = uri.true_url;
hr = MFBeginCreateFile(MF_ACCESSMODE_READ, MF_OPENMODE_FAIL_IF_NOT_EXIST, MF_FILEFLAGS_NONE, fp.c_str(), &when_create_bytestream, nullptr, nullptr);
}
return hr;
}