BASS_ChannelGetInfo question

[StungStang]

Hi to all, i've a problem with this function...

I want to know the filename of streaming, i use that code :

$Nowplaying = _BASS_ChannelGetInfo ($MusicHandle)
If $Nowplaying[7] <> ""  Then
MsgBox (0,"Hey!",$Nowplaying[7])
EndIf

All work good with mp3 radio streaming, but with WMA streaming it give me always the string "m". How i can fix that? I want know the real filename of WMA streaming.

BASS guru come on =P

Hi!

[BrewManNH]

Are you using the basswma.dll with this?

[StungStang]

Yes of course...i can reproduce wma well, the problem is only on BASS_ChannelGetInfo...

Hi!

[BrewManNH]

I would post on the forums for the bass.dll at http://www.un4seen.com/forum/?board=1, it may be that the files don't support that for wma streams. The developers of the dll would be the best to answer that question.

[StungStang]

He tell me that :

The filename is probably Unicode (BASSWMA will convert ANSI to Unicode as that is what the Windows Media library requires). To confirm whether that is the case, you can check if the BASS_UNICODE flag is present in the BASS_CHANNELINFO "flags" value. The WideCharToMultiByte function can be used to convert it back to ANSI if needed.

And :

Re: Buffering issue...

« Reply #7 on: 18 Feb '11 - 13:22 »

Reply with quoteQuote

That solitary "m" is a sign of a Unicode string Smiley ... The full byte sequence will be 'm', 0, 'm', 0, 's', 0, ':', 0, etc.

The WideCharToMultiByte is a Windows function. Details can be found here...

http://msdn.microsoft.com/en-us/library/dd374130.aspx

In C/C++, it could be used like this...

BASS_CHANNELINFO ci;

BASS_ChannelGetInfo(handle, &ci); // get info

if (ci.flags&BASS_UNICODE) { // the filename is Unicode

int n=WideCharToMultiByte(CP_ACP, 0, ci.filename, -1, 0, 0, 0, 0); // get required buffer size

char *ansi=(char*)alloca(n); // allocate a buffer

WideCharToMultiByte(CP_ACP, 0, ci.filename, -1, ansi, n, 0, 0); // do the conversion

// do something with "ansi" filename

} else { // the filename is ANSI

// do something with "ci.filename"

}

But he cant help me in autoit...have you understand what he would tell me?

Hi!

[BrewManNH]

Bass_channelgetinfo returns the unicode flag in the array element 2 according to the information in the UDF, it may be combined with other flags in that array element, you'll have to determine what that flag tells you about the stream. The value for $BASS_UNICODE is 0x80000000.

Once you've found out whether it's Unicode or not you'll have to figure out how to display it so that you can read it.

[StungStang]

i do this code :

$Nowplaying = _BASS_ChannelGetInfo ($MusicHandle)
                If $Nowplaying[2] And $BASS_UNICODE <> 0 Then
                    MsgBox (0,"Hey!","This is an UNICODE string!")
                EndIf

But it tell me always that is unicode, with a lot of stream link (Possible!?)...how i can know if is an unicode or not?...if is unicode how i can really display the value?

Hi!

Edited February 21, 2011 by StungStang

[rover]

I don't think this return parameter of _BASS_ChannelGetInfo() is very useful.

The returned URL is the same as the stream name you called,

the function might just be returning your selected URL.

However, there is an error in _BASS_ChannelGetInfo().

It always returns False for Unicode because BitOR was used instead of BitAND.

Open up Bass.au3 and edit _BASS_ChannelGetInfo()

Place cursor on _BASS_ChannelGetInfo() in SciTE and Press Ctrl-J to open Bass.au3 at line 3042

Change this line [3052]:

$aRet[7] = _BASS_PtrStringRead(DllStructGetData($dsInfo, 8), Bitor($aRet[2], $BASS_UNICODE)=$BASS_UNICODE)

To this:

$aRet[7] = _BASS_PtrStringRead(DllStructGetData($dsInfo, 8), BitAND($aRet[2], $BASS_UNICODE)=$BASS_UNICODE)

[StungStang]

@rover

Thanks for your help...arg that why it wont work...was a bug =P

Hi!