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mfreadwrite: Set url hint from stream content. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2019-03-25 10:45:17 +03:00 committed by Alexandre Julliard
parent 0319a2dd3f
commit a5fe3d65aa
1 changed files with 71 additions and 1 deletions
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72
dlls/mfreadwrite/main.c
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@ -576,6 +576,71 @@ failed:
return hr;
}
static HRESULT bytestream_get_url_hint(IMFByteStream *stream, WCHAR const **url)
{
static const UINT8 asfmagic[] = {0x30,0x26,0xb2,0x75,0x8e,0x66,0xcf,0x11,0xa6,0xd9,0x00,0xaa,0x00,0x62,0xce,0x6c};
static const WCHAR asfW[] = {'.','a','s','f',0};
static const struct stream_content_url_hint
{
const UINT8 *magic;
UINT32 magic_len;
const WCHAR *url;
}
url_hints[] =
{
{ asfmagic, sizeof(asfmagic), asfW },
};
IMFAttributes *attributes;
UINT32 length = 0;
UINT8 buffer[16];
DWORD caps = 0;
QWORD position;
unsigned int i;
HRESULT hr;
*url = NULL;
if (SUCCEEDED(IMFByteStream_QueryInterface(stream, &IID_IMFAttributes, (void **)&attributes)))
{
IMFAttributes_GetStringLength(attributes, &MF_BYTESTREAM_CONTENT_TYPE, &length);
IMFAttributes_Release(attributes);
}
if (length)
return S_OK;
if (FAILED(hr = IMFByteStream_GetCapabilities(stream, &caps)))
return hr;
if (!(caps & MFBYTESTREAM_IS_SEEKABLE))
return S_OK;
if (FAILED(hr = IMFByteStream_GetCurrentPosition(stream, &position)))
return hr;
hr = IMFByteStream_Read(stream, buffer, sizeof(buffer), &length);
IMFByteStream_SetCurrentPosition(stream, position);
if (FAILED(hr))
return hr;
if (length < sizeof(buffer))
return S_OK;
for (i = 0; i < ARRAY_SIZE(url_hints); ++i)
{
if (!memcmp(buffer, url_hints[i].magic, min(url_hints[i].magic_len, length)))
{
*url = url_hints[i].url;
break;
}
}
if (!*url)
WARN("Unrecognized content type %s.\n", debugstr_an((char *)buffer, length));
return S_OK;
}
static HRESULT create_source_reader_from_stream(IMFByteStream *stream, IMFAttributes *attributes,
REFIID riid, void **out)
{
@ -583,8 +648,13 @@ static HRESULT create_source_reader_from_stream(IMFByteStream *stream, IMFAttrib
IMFSourceResolver *resolver;
MF_OBJECT_TYPE obj_type;
IMFMediaSource *source;
const WCHAR *url;
HRESULT hr;
/* If stream does not have content type set, try to guess from starting byte sequence. */
if (FAILED(hr = bytestream_get_url_hint(stream, &url)))
return hr;
if (FAILED(hr = MFCreateSourceResolver(&resolver)))
return hr;
@ -592,7 +662,7 @@ static HRESULT create_source_reader_from_stream(IMFByteStream *stream, IMFAttrib
IMFAttributes_GetUnknown(attributes, &MF_SOURCE_READER_MEDIASOURCE_CONFIG, &IID_IPropertyStore,
(void **)&props);
hr = IMFSourceResolver_CreateObjectFromByteStream(resolver, stream, NULL, MF_RESOLUTION_MEDIASOURCE, props,
hr = IMFSourceResolver_CreateObjectFromByteStream(resolver, stream, url, MF_RESOLUTION_MEDIASOURCE, props,
&obj_type, (IUnknown **)&source);
IMFSourceResolver_Release(resolver);
if (props)