packetizer: hxxx: fix DirectTV extraction
[vlc.git] / modules / audio_output / mmdevice.h
blob3c7b6d35ba41df46064444272e5ccac99a5a8b51
1 /*****************************************************************************
2 * mmdevice.h : Windows Multimedia Device API audio output plugin for VLC
3 *****************************************************************************
4 * Copyright (C) 2012 RĂ©mi Denis-Courmont
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
21 #ifndef VLC_AOUT_MMDEVICE_H
22 # define VLC_AOUT_MMDEVICE_H 1
24 typedef struct aout_stream aout_stream_t;
26 /**
27 * Audio output simplified API for Windows
29 struct aout_stream
31 VLC_COMMON_MEMBERS
32 void *sys;
34 HRESULT (*time_get)(aout_stream_t *, mtime_t *);
35 HRESULT (*play)(aout_stream_t *, block_t *);
36 HRESULT (*pause)(aout_stream_t *, bool);
37 HRESULT (*flush)(aout_stream_t *);
39 struct
41 void *device;
42 HRESULT (*activate)(void *device, REFIID, PROPVARIANT *, void **);
43 } owner;
46 /**
47 * Creates an audio output stream on a given Windows multimedia device.
48 * \param s audio output stream object to be initialized
49 * \param fmt audio output sample format [IN/OUT]
50 * \param sid audio output session GUID [IN]
52 typedef HRESULT (*aout_stream_start_t)(aout_stream_t *s,
53 audio_sample_format_t *fmt, const GUID *sid);
55 /**
56 * Destroys an audio output stream.
58 typedef HRESULT (*aout_stream_stop_t)(aout_stream_t *);
60 static inline HRESULT aout_stream_TimeGet(aout_stream_t *s, mtime_t *delay)
62 return (s->time_get)(s, delay);
65 static inline HRESULT aout_stream_Play(aout_stream_t *s, block_t *block)
67 return (s->play)(s, block);
70 static inline HRESULT aout_stream_Pause(aout_stream_t *s, bool paused)
72 return (s->pause)(s, paused);
75 static inline HRESULT aout_stream_Flush(aout_stream_t *s, bool wait)
77 if (wait)
78 { /* Loosy drain emulation */
79 mtime_t delay;
81 if (SUCCEEDED(aout_stream_TimeGet(s, &delay))
82 && delay <= INT64_C(5000000))
83 Sleep((delay / (CLOCK_FREQ / 1000)) + 1);
84 return S_OK;
86 else
87 return (s->flush)(s);
90 static inline
91 HRESULT aout_stream_Activate(aout_stream_t *s, REFIID iid,
92 PROPVARIANT *actparms, void **pv)
94 return s->owner.activate(s->owner.device, iid, actparms, pv);
96 #endif