| 1 | /* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ |
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| 2 | /* |
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| 3 | * audio.h - DEPRECATED MPEG-TS audio decoder API |
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| 4 | * |
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| 5 | * NOTE: should not be used on future drivers |
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| 6 | * |
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| 7 | * Copyright (C) 2000 Ralph Metzler <ralph@convergence.de> |
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| 8 | * & Marcus Metzler <marcus@convergence.de> |
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| 9 | * for convergence integrated media GmbH |
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| 10 | */ |
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| 11 | |
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| 12 | #ifndef _DVBAUDIO_H_ |
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| 13 | #define _DVBAUDIO_H_ |
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| 14 | |
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| 15 | #include <linux/types.h> |
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| 16 | |
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| 17 | typedef enum { |
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| 18 | AUDIO_SOURCE_DEMUX, /* Select the demux as the main source */ |
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| 19 | AUDIO_SOURCE_MEMORY /* Select internal memory as the main source */ |
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| 20 | } audio_stream_source_t; |
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| 21 | |
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| 22 | |
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| 23 | typedef enum { |
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| 24 | AUDIO_STOPPED, /* Device is stopped */ |
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| 25 | AUDIO_PLAYING, /* Device is currently playing */ |
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| 26 | AUDIO_PAUSED /* Device is paused */ |
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| 27 | } audio_play_state_t; |
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| 28 | |
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| 29 | |
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| 30 | typedef enum { |
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| 31 | AUDIO_STEREO, |
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| 32 | AUDIO_MONO_LEFT, |
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| 33 | AUDIO_MONO_RIGHT, |
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| 34 | AUDIO_MONO, |
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| 35 | AUDIO_STEREO_SWAPPED |
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| 36 | } audio_channel_select_t; |
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| 37 | |
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| 38 | |
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| 39 | typedef struct audio_mixer { |
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| 40 | unsigned int volume_left; |
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| 41 | unsigned int volume_right; |
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| 42 | /* what else do we need? bass, pass-through, ... */ |
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| 43 | } audio_mixer_t; |
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| 44 | |
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| 45 | |
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| 46 | typedef struct audio_status { |
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| 47 | int AV_sync_state; /* sync audio and video? */ |
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| 48 | int mute_state; /* audio is muted */ |
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| 49 | audio_play_state_t play_state; /* current playback state */ |
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| 50 | audio_stream_source_t stream_source; /* current stream source */ |
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| 51 | audio_channel_select_t channel_select; /* currently selected channel */ |
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| 52 | int bypass_mode; /* pass on audio data to */ |
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| 53 | audio_mixer_t mixer_state; /* current mixer state */ |
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| 54 | } audio_status_t; /* separate decoder hardware */ |
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| 55 | |
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| 56 | |
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| 57 | /* for GET_CAPABILITIES and SET_FORMAT, the latter should only set one bit */ |
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| 58 | #define AUDIO_CAP_DTS 1 |
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| 59 | #define AUDIO_CAP_LPCM 2 |
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| 60 | #define AUDIO_CAP_MP1 4 |
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| 61 | #define AUDIO_CAP_MP2 8 |
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| 62 | #define AUDIO_CAP_MP3 16 |
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| 63 | #define AUDIO_CAP_AAC 32 |
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| 64 | #define AUDIO_CAP_OGG 64 |
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| 65 | #define AUDIO_CAP_SDDS 128 |
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| 66 | #define AUDIO_CAP_AC3 256 |
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| 67 | |
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| 68 | #define AUDIO_STOP _IO('o', 1) |
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| 69 | #define AUDIO_PLAY _IO('o', 2) |
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| 70 | #define AUDIO_PAUSE _IO('o', 3) |
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| 71 | #define AUDIO_CONTINUE _IO('o', 4) |
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| 72 | #define AUDIO_SELECT_SOURCE _IO('o', 5) |
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| 73 | #define AUDIO_SET_MUTE _IO('o', 6) |
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| 74 | #define AUDIO_SET_AV_SYNC _IO('o', 7) |
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| 75 | #define AUDIO_SET_BYPASS_MODE _IO('o', 8) |
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| 76 | #define AUDIO_CHANNEL_SELECT _IO('o', 9) |
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| 77 | #define AUDIO_GET_STATUS _IOR('o', 10, audio_status_t) |
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| 78 | |
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| 79 | #define AUDIO_GET_CAPABILITIES _IOR('o', 11, unsigned int) |
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| 80 | #define AUDIO_CLEAR_BUFFER _IO('o', 12) |
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| 81 | #define AUDIO_SET_ID _IO('o', 13) |
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| 82 | #define AUDIO_SET_MIXER _IOW('o', 14, audio_mixer_t) |
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| 83 | #define AUDIO_SET_STREAMTYPE _IO('o', 15) |
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| 84 | #define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20) |
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| 85 | |
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| 86 | #endif /* _DVBAUDIO_H_ */ |
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| 87 | |
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