[sdlsound] SDL_sound mixer ETA??

[Kevin Rogovin]

Hi Kevin,

 Just so you know:

SDL_RWops is a very simple structure to read and/or write data to a
more abstract source than a file, for me I use it so I can read from
.zip files containing lots of files, lots of games do this: Serious
Sam, Quake, the list goes on.

Your jukebox is using SDL_mixer to load and play the music files, but
suppose the music files were stored encrypted or archived into a
larger volume file, under SDL_mixer you will need to create an
individual file for the mp3 you wish to play, rather than streaming it
directly for from the large volume file or such.... SDL_Sound allows
one to say "load" a file via SDL_RWops, thus it n could be a part of
large file volume or anything as long as you ran read and seek.... in
truth though, for your program there really is no need for that, as it
is a jukebox to play mp3, ogg and other music/sound files....

-Kevin

On Thu, May 29, 2008 at 3:25 PM, Kevin Nowaczyk <beakerboy99 at yahoo.com> wrote:
> I'm a hobby programmer, and don't know a lot about how SDL really works (Black Box) so I'm unsure what SDL_RWops is, but I can tell you that the application I referred to is for a jukebox application.  It plays mp3 and ogg files perfectly well.  I can even play a long Sigur Ros song or the entire 18 minute Tain EP by the Decemberists without issues.  Like I said, I don't know exactly how my code works, but it works great!
>
>
> Good luck,
> Kevin
>
>
>
> ----- Original Message ----
> From: Kevin Rogovin <kevin.rogovin at gmail.com>
> To: sdlsound at icculus.org
> Sent: Thursday, May 29, 2008 7:12:35 AM
> Subject: Re: [sdlsound] SDL_sound mixer ETA??
>
> Hi,
>
> I looked at the source, it looks like you are using SDL_mixer to load
> a music file and to play it.... I kind of wanted to get away from
> SDL_mixer (or else fix it) because only module music can be loaded in
> it via SDL_RWops structures, otherwise one needs the file... in what I
> am writing, the files are all zip-compressed in archives, and I would
> like to be able to feed  an SDL_RWops structure. SDL_image allows for
> loading from SDL_RWops, SDL_Sound does too, but the support under
> SDL_mixer for SDL_RWops is kind of sucky: WAV and module music only,
> no mp3, no ogg, etc...  the only way I see right now to use SDL_mixer
> and SDL_sound together is to load via SDL_sound, decode entire sample
> in memory, then feed sample to SDL_mixer.... this is fine for sound
> effects, but a real no go for music... music should be streamed from
> source.... SDL_sound has support for decoding chunks at a time, so I
> was hoping that a mixer for SDL_sound was ready and around, but the
> one in SDL_Sound in SVN is only a skeleton now (I think the doc says
> in SDL_Sound v2.0 it will come, but that might be a very long time) so
> I was hoping that someone had already made a mixer for SDL_sound that
> did not force one to decode the entire audio stream..... I am
> considering hacking SDL_mixer to allow for an SDL_Sound element, but
> before I start to do that, I'd like to make sure that it is really
> necessary...
>
> Best Regards
>
> -Kevin
>
> On Thu, May 29, 2008 at 1:53 PM, Kevin Nowaczyk <beakerboy99 at yahoo.com> wrote:
>> Kevin,
>> I added mixer support to my project about a year ago see the code below.
>>
>> http://tjukebox.cvs.sourceforge.net/tjukebox/server/src/AudioPlayer.cpp?revision=1.3&view=markup
>>
>>
>> Kevin
>>
>> ----- Original Message ----
>> From: Kevin Rogovin <kevin.rogovin at gmail.com>
>> To: sdlsound at icculus.org
>> Sent: Thursday, May 29, 2008 5:35:50 AM
>> Subject: [sdlsound] SDL_sound mixer ETA??
>>
>> Hi All,
>>
>> I was looking over the SVN of SDL_Sound and say a mixer in the source,
>> along with a tutorial... does anyone know the ETA of the SDL_sound
>> mixer? (as I really do not want to hack SDL_mixer to work with
>> SDL_sound to stream music).
>>
>>
>> Best Regards
>> -Kevin
>>
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