f05cce863f
Add two new ioctls to read the 33 bit presentation time stamp from audio and video devices as defined in ITU T-REC-H.222.0 and ISO/IEC 13818-1. Acked-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
138 lines
4.7 KiB
C
138 lines
4.7 KiB
C
/*
|
|
* audio.h
|
|
*
|
|
* Copyright (C) 2000 Ralph Metzler <ralph@convergence.de>
|
|
* & Marcus Metzler <marcus@convergence.de>
|
|
* for convergence integrated media GmbH
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Lesser Public License
|
|
* as published by the Free Software Foundation; either version 2.1
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
|
|
#ifndef _DVBAUDIO_H_
|
|
#define _DVBAUDIO_H_
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/types.h>
|
|
#else
|
|
#include <stdint.h>
|
|
#endif
|
|
|
|
|
|
typedef enum {
|
|
AUDIO_SOURCE_DEMUX, /* Select the demux as the main source */
|
|
AUDIO_SOURCE_MEMORY /* Select internal memory as the main source */
|
|
} audio_stream_source_t;
|
|
|
|
|
|
typedef enum {
|
|
AUDIO_STOPPED, /* Device is stopped */
|
|
AUDIO_PLAYING, /* Device is currently playing */
|
|
AUDIO_PAUSED /* Device is paused */
|
|
} audio_play_state_t;
|
|
|
|
|
|
typedef enum {
|
|
AUDIO_STEREO,
|
|
AUDIO_MONO_LEFT,
|
|
AUDIO_MONO_RIGHT
|
|
} audio_channel_select_t;
|
|
|
|
|
|
typedef struct audio_mixer {
|
|
unsigned int volume_left;
|
|
unsigned int volume_right;
|
|
// what else do we need? bass, pass-through, ...
|
|
} audio_mixer_t;
|
|
|
|
|
|
typedef struct audio_status {
|
|
int AV_sync_state; /* sync audio and video? */
|
|
int mute_state; /* audio is muted */
|
|
audio_play_state_t play_state; /* current playback state */
|
|
audio_stream_source_t stream_source; /* current stream source */
|
|
audio_channel_select_t channel_select; /* currently selected channel */
|
|
int bypass_mode; /* pass on audio data to */
|
|
audio_mixer_t mixer_state; /* current mixer state */
|
|
} audio_status_t; /* separate decoder hardware */
|
|
|
|
|
|
typedef
|
|
struct audio_karaoke{ /* if Vocal1 or Vocal2 are non-zero, they get mixed */
|
|
int vocal1; /* into left and right t at 70% each */
|
|
int vocal2; /* if both, Vocal1 and Vocal2 are non-zero, Vocal1 gets*/
|
|
int melody; /* mixed into the left channel and */
|
|
/* Vocal2 into the right channel at 100% each. */
|
|
/* if Melody is non-zero, the melody channel gets mixed*/
|
|
} audio_karaoke_t; /* into left and right */
|
|
|
|
|
|
typedef uint16_t audio_attributes_t;
|
|
/* bits: descr. */
|
|
/* 15-13 audio coding mode (0=ac3, 2=mpeg1, 3=mpeg2ext, 4=LPCM, 6=DTS, */
|
|
/* 12 multichannel extension */
|
|
/* 11-10 audio type (0=not spec, 1=language included) */
|
|
/* 9- 8 audio application mode (0=not spec, 1=karaoke, 2=surround) */
|
|
/* 7- 6 Quantization / DRC (mpeg audio: 1=DRC exists)(lpcm: 0=16bit, */
|
|
/* 5- 4 Sample frequency fs (0=48kHz, 1=96kHz) */
|
|
/* 2- 0 number of audio channels (n+1 channels) */
|
|
|
|
|
|
/* for GET_CAPABILITIES and SET_FORMAT, the latter should only set one bit */
|
|
#define AUDIO_CAP_DTS 1
|
|
#define AUDIO_CAP_LPCM 2
|
|
#define AUDIO_CAP_MP1 4
|
|
#define AUDIO_CAP_MP2 8
|
|
#define AUDIO_CAP_MP3 16
|
|
#define AUDIO_CAP_AAC 32
|
|
#define AUDIO_CAP_OGG 64
|
|
#define AUDIO_CAP_SDDS 128
|
|
#define AUDIO_CAP_AC3 256
|
|
|
|
#define AUDIO_STOP _IO('o', 1)
|
|
#define AUDIO_PLAY _IO('o', 2)
|
|
#define AUDIO_PAUSE _IO('o', 3)
|
|
#define AUDIO_CONTINUE _IO('o', 4)
|
|
#define AUDIO_SELECT_SOURCE _IO('o', 5)
|
|
#define AUDIO_SET_MUTE _IO('o', 6)
|
|
#define AUDIO_SET_AV_SYNC _IO('o', 7)
|
|
#define AUDIO_SET_BYPASS_MODE _IO('o', 8)
|
|
#define AUDIO_CHANNEL_SELECT _IO('o', 9)
|
|
#define AUDIO_GET_STATUS _IOR('o', 10, audio_status_t)
|
|
|
|
#define AUDIO_GET_CAPABILITIES _IOR('o', 11, unsigned int)
|
|
#define AUDIO_CLEAR_BUFFER _IO('o', 12)
|
|
#define AUDIO_SET_ID _IO('o', 13)
|
|
#define AUDIO_SET_MIXER _IOW('o', 14, audio_mixer_t)
|
|
#define AUDIO_SET_STREAMTYPE _IO('o', 15)
|
|
#define AUDIO_SET_EXT_ID _IO('o', 16)
|
|
#define AUDIO_SET_ATTRIBUTES _IOW('o', 17, audio_attributes_t)
|
|
#define AUDIO_SET_KARAOKE _IOW('o', 18, audio_karaoke_t)
|
|
|
|
/**
|
|
* AUDIO_GET_PTS
|
|
*
|
|
* Read the 33 bit presentation time stamp as defined
|
|
* in ITU T-REC-H.222.0 / ISO/IEC 13818-1.
|
|
*
|
|
* The PTS should belong to the currently played
|
|
* frame if possible, but may also be a value close to it
|
|
* like the PTS of the last decoded frame or the last PTS
|
|
* extracted by the PES parser.
|
|
*/
|
|
#define AUDIO_GET_PTS _IOR('o', 19, __u64)
|
|
|
|
#endif /* _DVBAUDIO_H_ */
|