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| 1 |  |  |  |  |  |  | package SDL2::AudioSpec { | 
| 2 | 2 |  |  | 2 |  | 17 | use SDL2::Utils; | 
|  | 2 |  |  |  |  | 4 |  | 
|  | 2 |  |  |  |  | 23 |  | 
| 3 |  |  |  |  |  |  | has | 
| 4 |  |  |  |  |  |  | freq     => 'int', | 
| 5 |  |  |  |  |  |  | format   => 'uint16', | 
| 6 |  |  |  |  |  |  | channels => 'uint8', | 
| 7 |  |  |  |  |  |  | silence  => 'uint8', | 
| 8 |  |  |  |  |  |  | samples  => 'uint16', | 
| 9 |  |  |  |  |  |  | padding  => 'uint16', | 
| 10 |  |  |  |  |  |  | size     => 'uint32', | 
| 11 |  |  |  |  |  |  | callback => 'opaque',    # SDL_AudioCallback | 
| 12 |  |  |  |  |  |  | userdata => 'opaque'     # void * | 
| 13 |  |  |  |  |  |  | ; | 
| 14 |  |  |  |  |  |  |  | 
| 15 |  |  |  |  |  |  | =encoding utf-8 | 
| 16 |  |  |  |  |  |  |  | 
| 17 |  |  |  |  |  |  | =head1 NAME | 
| 18 |  |  |  |  |  |  |  | 
| 19 |  |  |  |  |  |  | SDL2::AudioSpec - The Structure that Defines a Point with Integers | 
| 20 |  |  |  |  |  |  |  | 
| 21 |  |  |  |  |  |  | =head1 SYNOPSIS | 
| 22 |  |  |  |  |  |  |  | 
| 23 |  |  |  |  |  |  | use SDL2 qw[:all]; | 
| 24 |  |  |  |  |  |  | # TODO: I need to whip up a quick example | 
| 25 |  |  |  |  |  |  |  | 
| 26 |  |  |  |  |  |  | =head1 DESCRIPTION | 
| 27 |  |  |  |  |  |  |  | 
| 28 |  |  |  |  |  |  | SDL2::AudioSpec | 
| 29 |  |  |  |  |  |  |  | 
| 30 |  |  |  |  |  |  | The calculated values in this structure are calculated by SDL_OpenAudio(). | 
| 31 |  |  |  |  |  |  |  | 
| 32 |  |  |  |  |  |  | For multi-channel audio, the default SDL channel mapping is: | 
| 33 |  |  |  |  |  |  |  | 
| 34 |  |  |  |  |  |  | *  2:  FL FR                       (stereo) | 
| 35 |  |  |  |  |  |  | *  3:  FL FR LFE                   (2.1 surround) | 
| 36 |  |  |  |  |  |  | *  4:  FL FR BL BR                 (quad) | 
| 37 |  |  |  |  |  |  | *  5:  FL FR FC BL BR              (quad + center) | 
| 38 |  |  |  |  |  |  | *  6:  FL FR FC LFE SL SR          (5.1 surround - last two can also be BL BR) | 
| 39 |  |  |  |  |  |  | *  7:  FL FR FC LFE BC SL SR       (6.1 surround) | 
| 40 |  |  |  |  |  |  | *  8:  FL FR FC LFE BL BR SL SR    (7.1 surround) | 
| 41 |  |  |  |  |  |  |  | 
| 42 |  |  |  |  |  |  | =head1 Fields | 
| 43 |  |  |  |  |  |  |  | 
| 44 |  |  |  |  |  |  | =over | 
| 45 |  |  |  |  |  |  |  | 
| 46 |  |  |  |  |  |  | =item C - DSP frequency -- samples per second | 
| 47 |  |  |  |  |  |  |  | 
| 48 |  |  |  |  |  |  | =item C - Audio data format | 
| 49 |  |  |  |  |  |  |  | 
| 50 |  |  |  |  |  |  | =item C - Number of channels: 1 mondo, 2 stereo | 
| 51 |  |  |  |  |  |  |  | 
| 52 |  |  |  |  |  |  | =item C - Audio buffer silence value (calculated) | 
| 53 |  |  |  |  |  |  |  | 
| 54 |  |  |  |  |  |  | =item C - Audio buffer size in sample FRAMES (total samples divided by channel count) | 
| 55 |  |  |  |  |  |  |  | 
| 56 |  |  |  |  |  |  | =item C - Necessary for some compile environments | 
| 57 |  |  |  |  |  |  |  | 
| 58 |  |  |  |  |  |  | =item C - Audio buffer size in bytes (calculated) | 
| 59 |  |  |  |  |  |  |  | 
| 60 |  |  |  |  |  |  | =item C - Callback that feeds the audio device (undef to use C) | 
| 61 |  |  |  |  |  |  |  | 
| 62 |  |  |  |  |  |  | =item C - Userdata passed to callback (ignored for undef callbacks) | 
| 63 |  |  |  |  |  |  |  | 
| 64 |  |  |  |  |  |  | =back | 
| 65 |  |  |  |  |  |  |  | 
| 66 |  |  |  |  |  |  | =head1 AUTHOR | 
| 67 |  |  |  |  |  |  |  | 
| 68 |  |  |  |  |  |  | Sanko Robinson Esanko@cpan.orgE | 
| 69 |  |  |  |  |  |  |  | 
| 70 |  |  |  |  |  |  | =begin stopwords | 
| 71 |  |  |  |  |  |  |  | 
| 72 |  |  |  |  |  |  |  | 
| 73 |  |  |  |  |  |  | =end stopwords | 
| 74 |  |  |  |  |  |  |  | 
| 75 |  |  |  |  |  |  | =cut | 
| 76 |  |  |  |  |  |  |  | 
| 77 |  |  |  |  |  |  | }; | 
| 78 |  |  |  |  |  |  | 1; |