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wineqtdecoder: Read the header of unknown incoming streams to try to identify common formats.

This commit is contained in:
Aric Stewart 2012-03-28 10:18:49 -05:00 committed by Alexandre Julliard
parent 38387dcffe
commit cc6b7592ee
1 changed files with 29 additions and 0 deletions
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29
dlls/wineqtdecoder/qtdatahandler.c
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@ -325,6 +325,22 @@ static pascal ComponentResult myDataHGetFileTypeOrdering ( DataHandler dh,
return noErr;
}
typedef struct {
const CFStringRef fname;
const int sig_length;
const BYTE sig[10];
} signature;
static const signature stream_sigs[] = {
{CFSTR("video.asf"),4,{0x30,0x26,0xb2,0x75}},
{CFSTR("video.mov"),8,{0x00,0x00,0x00,0x14,0x66,0x74,0x79,0x70}},
{CFSTR("video.mp4"),8,{0x00,0x00,0x00,0x18,0x66,0x74,0x79,0x70}},
{CFSTR("video.m4v"),8,{0x00,0x00,0x00,0x1c,0x66,0x74,0x79,0x70}},
{CFSTR("video.flv"),4,{0x46,0x4C,0x56,0x01}},
{CFSTR("video.mpg"),3,{0x00,0x00,0x01}},
{CFSTR("avideo.rm"),4,{0x2E,0x52,0x4D,0x46}}
};
static pascal ComponentResult myDataHGetFileName ( DataHandler dh, Str255 str)
{
Handle storage = GetComponentInstanceStorage(dh);
@ -342,7 +358,20 @@ static pascal ComponentResult myDataHGetFileName ( DataHandler dh, Str255 str)
else if(IsEqualIID(&data->dataRef.streamSubtype, &MEDIASUBTYPE_QTMovie))
CFStringGetPascalString(CFSTR("video.mov"),str,256,kCFStringEncodingMacRoman);
else
{
BYTE header[10] = {0,0,0,0,0,0,0,0,0,0};
int i;
IAsyncReader_SyncRead(data->dataRef.pReader, 0, 8, header);
for (i=0; i < sizeof(stream_sigs)/sizeof(signature); i++)
if (memcmp(header, stream_sigs[i].sig, stream_sigs[i].sig_length)==0)
{
CFStringGetPascalString(stream_sigs[i].fname,str,256,kCFStringEncodingMacRoman);
return noErr;
}
return badComponentSelector;
}
return noErr;
}