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[0] | 1 | //driver_esd.c: |
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| 2 | |
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| 3 | #include "roard.h" |
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| 4 | |
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| 5 | int driver_ao_open(DRIVER_USERDATA_T * inst, char * device, struct roar_audio_info * info) { |
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| 6 | ao_device * aodevice; |
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| 7 | ao_sample_format format; |
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| 8 | int driver; |
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| 9 | |
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| 10 | ao_initialize(); |
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| 11 | |
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| 12 | if ( device == NULL ) { |
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| 13 | driver = ao_default_driver_id(); |
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| 14 | } else { |
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| 15 | if ( (driver = ao_driver_id(device)) == -1 ) { |
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| 16 | ROAR_ERR("Can not open audio device via libao's driver '%s'", device); |
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| 17 | return -1; |
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| 18 | } |
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| 19 | } |
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| 20 | |
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| 21 | format.bits = info->bits; |
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| 22 | format.channels = info->channels; |
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| 23 | format.rate = info->rate; |
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| 24 | format.byte_format = AO_FMT_NATIVE; |
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| 25 | |
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| 26 | aodevice = ao_open_live(driver, &format, NULL /* no options */); |
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| 27 | |
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| 28 | if ( aodevice == NULL ) { |
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| 29 | ROAR_ERR("Can not open audio device via libao."); |
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| 30 | return -1; |
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| 31 | } |
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| 32 | |
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| 33 | *((ao_device**)inst) = aodevice; |
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| 34 | |
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| 35 | return 0; |
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| 36 | } |
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| 37 | |
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| 38 | int driver_ao_close(DRIVER_USERDATA_T inst) { |
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| 39 | |
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| 40 | ao_close((ao_device*)inst); |
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| 41 | |
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| 42 | ao_shutdown(); |
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| 43 | |
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| 44 | return -1; |
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| 45 | } |
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| 46 | |
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| 47 | int driver_ao_pause(DRIVER_USERDATA_T inst, int newstate) { |
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| 48 | return -1; |
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| 49 | } |
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| 50 | |
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| 51 | int driver_ao_write(DRIVER_USERDATA_T inst, char * buf, int len) { |
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| 52 | return ao_play((ao_device*)inst, buf, len); |
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| 53 | } |
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| 54 | |
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| 55 | int driver_ao_read(DRIVER_USERDATA_T inst, char * buf, int len) { |
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| 56 | return -1; |
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| 57 | } |
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| 58 | |
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| 59 | int driver_ao_flush(DRIVER_USERDATA_T inst) { |
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| 60 | return 0; |
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| 61 | } |
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| 62 | |
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| 63 | //ll |
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