Hi!
The example code in your link gives me version 1.2.11 on Win 7 x64 with
strawberry perl 5.12.2 built for MSWin32-x64-multi-thread.
HTH,
Alex
[code]
use SDL::Mixer;
use SDL::Version;
my $version = SDL::Mixer::linked_version();
printf("%d.%d.%d\n", $version->major, $version->minor, $version->patch); #
prints "1.2.11" for me
[/code]
-----Ursprüngliche Nachricht-----
Von: Tobias Leich [mailto:[email protected]]
Gesendet: Mittwoch, 30. November 2011 13:18
An: Alexander Becker
Cc: 'breno'; [email protected]
Betreff: Re: How to play an mp3 file from a database
Hi, can you please check what version of libSDL_mixer do you have installed?
http://sdl.perl.org/SDL-Mixer.html#linked_version
In case you have 1.2.7 or better we can add support for RWOps objects.
So you dont need temp files.
Cheers, FROGGS
Am 29.11.2011 20:37, schrieb Alexander Becker:
> Hi breno,
>
> thank you for the quick response. It helped.
> I had a look into mixer_samples.t and line 106 states, that
> quick_load_WAV is not (yet? Who do I have to bribe with what to get it?)
implemented.
>
> Here is a working piece of code using temporary files. Of course, you
> need a database containing audio files.
>
> Best regards,
> Alex
>
> [code]
> #!perl
>
> use strict;
> use warnings;
> use utf8;
> use DBI;
> use SQL::Abstract::Limit;
> use File::Temp;
> use SDL;
> use SDL::Audio;
> use SDL::Mixer;
> use SDL::Mixer::Samples;
> use SDL::Mixer::Channels;
> use SDL::Mixer::Music;
> SDL::init(SDL_INIT_AUDIO);
> SDL::Mixer::init( MIX_INIT_MP3 | MUS_MP3 );
>
> unless( SDL::Mixer::open_audio( 44100, AUDIO_S16SYS, 2, 4096 ) == 0 ) {
> Carp::croak "Cannot open audio: ".SDL::get_error(); }
>
> my $buffer = get_audio_buffer();
>
> # -- write audio buffer to temp file
> my $fh = File::Temp->new( UNLINK => 1, SUFFIX => '.mp3' );
> $fh->unlink_on_destroy( 1 ); print $fh $buffer; my $fname =
> $fh->filename;
>
> # close the handle or the temfile will have some sort of lock on it
> and cannot be read $fh->close();
>
> my $background_music = SDL::Mixer::Music::load_MUS( $fname );
>
> unless( $background_music ) {
> Carp::croak "Cannot load music file [buffer from DB]: " .
> SDL::get_error();
> }
>
> SDL::Mixer::Music::play_music( $background_music,0 );
>
> sleep(6);
>
> SDL::Mixer::Music::halt_music();
> SDL::Mixer::close_audio;
> exit(0);
>
>
>
> sub get_audio_buffer {
> my $sql = SQL::Abstract::Limit->new( limit_dialect => 'LimitXY'
> );;
>
> my $table = 'audio_files';
> my @fields = (qw/audio/);
> my %where = (
> id => 2,
> );
> my @order = ();
> my $limit = 1;
> my $offset = 0;
> my ( $stmt, @bind ) = $sql->select( $table, \@fields, \%where,
> \@order, $limit, $offset );
> my $database = 'database_name';
> my $db_host = 'your_host';
> my $db_port = '3306';
> my $dsn = "DBI:mysql:database=$database;host=$db_host;port=$db_port";
> my $username = 'username';
> my $password = 'password';
> my $dbh = DBI->connect($dsn, $username, $password) or die('Cannot
> connect to DB: ' . DBI->errstr());
> my $sth = $dbh->prepare( $stmt );
> $sth->execute( @bind );
>
> my ($buffer) = $sth->fetchrow_array();
>
> return $buffer;
> } # /get_audio_buffer
> [/code]
>
> -----Ursprüngliche Nachricht-----
> Von: breno [mailto:[email protected]]
> Gesendet: Dienstag, 29. November 2011 06:34
> An: Alexander Becker
> Cc: [email protected]
> Betreff: Re: How to play an mp3 file from a database
>
> On Mon, Nov 28, 2011 at 8:13 PM, Alexander Becker < > wrote:
>> Dear all!
>>
> Hi there!
>
>> I just tried the example code of the SDL Manual where you play some
music.
>> By the SDL manual, I refer to the one that is hidden at the bottom of
>> the sdl.perl.org page, so that you really have to search for it in
>> order to find it - and even then you have to get along with an ugly
>> github
> interface.
> There's a new project website under way, but we're missing people to
> work in it. Please join #sdl in irc.perl.org if you want to help us
> get it right :)
>
>> So, in general: Is there a way to play mp3 files?
> Yup.
>
> If your libsdl was compiled with mp3 support, all you have to do
> (iirc) is set the MIX_INIT_MP3 (for effects) and MUS_MP3 (for audio)
> flags when you call SDL::Mixer::init():
>
> SDL::Mixer::init( MIX_INIT_MP3 | MUS_MP3 );
>
> then use load_MUS() and play_music() from SDL::Mixer::Music to play
> mp3 files as background music, or load_WAV() from SDL::Mixer::Samples
> to play mp3 effects (yes, the function is named load_WAV() but plays
> different formats too if they're available).
>
> The documentation in SDL::Mixer, SDL::Mixer::Music and
> SDL::Mixer::Samples should be helpful, as some of the test files
> (t/mixer_music.t comes to mind).
>
>> And in particular: is there a way to play mp3 files that are in a
> variable?
>> Or do I have to work with temporary files?
>>
> Not sure. I *think* SDL::Mixer::quick_load_WAV( $buffer ) might do the
> right thing. You'll have to test it though.
>
> Cheers,
>
> breno
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