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101 lines
3.5 KiB
101 lines
3.5 KiB
/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */ |
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/* |
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* audio.h - DEPRECATED MPEG-TS audio decoder API |
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* |
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* NOTE: should not be used on future drivers |
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* |
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* Copyright (C) 2000 Ralph Metzler <[email protected]> |
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* & Marcus Metzler <[email protected]> |
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* for convergence integrated media GmbH |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Lesser Public License |
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* as published by the Free Software Foundation; either version 2.1 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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* |
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*/ |
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#ifndef _DVBAUDIO_H_ |
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#define _DVBAUDIO_H_ |
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#include <linux/types.h> |
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typedef enum { |
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AUDIO_SOURCE_DEMUX, /* Select the demux as the main source */ |
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AUDIO_SOURCE_MEMORY /* Select internal memory as the main source */ |
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} audio_stream_source_t; |
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typedef enum { |
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AUDIO_STOPPED, /* Device is stopped */ |
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AUDIO_PLAYING, /* Device is currently playing */ |
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AUDIO_PAUSED /* Device is paused */ |
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} audio_play_state_t; |
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typedef enum { |
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AUDIO_STEREO, |
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AUDIO_MONO_LEFT, |
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AUDIO_MONO_RIGHT, |
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AUDIO_MONO, |
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AUDIO_STEREO_SWAPPED |
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} audio_channel_select_t; |
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typedef struct audio_mixer { |
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unsigned int volume_left; |
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unsigned int volume_right; |
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/* what else do we need? bass, pass-through, ... */ |
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} audio_mixer_t; |
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typedef struct audio_status { |
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int AV_sync_state; /* sync audio and video? */ |
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int mute_state; /* audio is muted */ |
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audio_play_state_t play_state; /* current playback state */ |
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audio_stream_source_t stream_source; /* current stream source */ |
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audio_channel_select_t channel_select; /* currently selected channel */ |
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int bypass_mode; /* pass on audio data to */ |
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audio_mixer_t mixer_state; /* current mixer state */ |
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} audio_status_t; /* separate decoder hardware */ |
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/* for GET_CAPABILITIES and SET_FORMAT, the latter should only set one bit */ |
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#define AUDIO_CAP_DTS 1 |
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#define AUDIO_CAP_LPCM 2 |
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#define AUDIO_CAP_MP1 4 |
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#define AUDIO_CAP_MP2 8 |
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#define AUDIO_CAP_MP3 16 |
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#define AUDIO_CAP_AAC 32 |
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#define AUDIO_CAP_OGG 64 |
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#define AUDIO_CAP_SDDS 128 |
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#define AUDIO_CAP_AC3 256 |
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#define AUDIO_STOP _IO('o', 1) |
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#define AUDIO_PLAY _IO('o', 2) |
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#define AUDIO_PAUSE _IO('o', 3) |
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#define AUDIO_CONTINUE _IO('o', 4) |
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#define AUDIO_SELECT_SOURCE _IO('o', 5) |
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#define AUDIO_SET_MUTE _IO('o', 6) |
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#define AUDIO_SET_AV_SYNC _IO('o', 7) |
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#define AUDIO_SET_BYPASS_MODE _IO('o', 8) |
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#define AUDIO_CHANNEL_SELECT _IO('o', 9) |
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#define AUDIO_GET_STATUS _IOR('o', 10, audio_status_t) |
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#define AUDIO_GET_CAPABILITIES _IOR('o', 11, unsigned int) |
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#define AUDIO_CLEAR_BUFFER _IO('o', 12) |
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#define AUDIO_SET_ID _IO('o', 13) |
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#define AUDIO_SET_MIXER _IOW('o', 14, audio_mixer_t) |
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#define AUDIO_SET_STREAMTYPE _IO('o', 15) |
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#define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20) |
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#endif /* _DVBAUDIO_H_ */
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