X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fdvb%2Faudio.h;h=0874a67c6b922de7e5ab9e81ac2fda4907a96135;hb=refs%2Fheads%2Fvserver;hp=58956c3bba529f31bb4960553a849469661d91ce;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git diff --git a/include/linux/dvb/audio.h b/include/linux/dvb/audio.h index 58956c3bb..0874a67c6 100644 --- a/include/linux/dvb/audio.h +++ b/include/linux/dvb/audio.h @@ -1,9 +1,9 @@ -/* +/* * audio.h * * Copyright (C) 2000 Ralph Metzler * & Marcus Metzler - for convergence integrated media GmbH + * 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 @@ -32,39 +32,39 @@ typedef enum { - AUDIO_SOURCE_DEMUX, /* Select the demux as the main source */ - AUDIO_SOURCE_MEMORY /* Select internal memory as the main source */ + 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 */ +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_STEREO, + AUDIO_MONO_LEFT, + AUDIO_MONO_RIGHT } audio_channel_select_t; -typedef struct audio_mixer { - unsigned int volume_left; - unsigned int volume_right; +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 */ +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 */ @@ -74,8 +74,8 @@ 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*/ + /* 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 */ @@ -88,7 +88,7 @@ typedef uint16_t audio_attributes_t; /* 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 @@ -101,7 +101,7 @@ typedef uint16_t audio_attributes_t; #define AUDIO_CAP_SDDS 128 #define AUDIO_CAP_AC3 256 -#define AUDIO_STOP _IO('o', 1) +#define AUDIO_STOP _IO('o', 1) #define AUDIO_PLAY _IO('o', 2) #define AUDIO_PAUSE _IO('o', 3) #define AUDIO_CONTINUE _IO('o', 4) @@ -121,5 +121,17 @@ typedef uint16_t audio_attributes_t; #define AUDIO_SET_ATTRIBUTES _IOW('o', 17, audio_attributes_t) #define AUDIO_SET_KARAOKE _IOW('o', 18, audio_karaoke_t) -#endif /* _DVBAUDIO_H_ */ +/** + * 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_ */