root/modules/access/bda/bdagraph.h

Revision 3ed4adba10fdcd666e4bc75ceb4202672a5fd14d, 3.7 kB (checked in by Ken Self <kenself@videolan.org>, 2 years ago)

Fix choppy audio on live play - caching enabled properly
Discard samples before demux is ready
Timeout if no samples received
Header file tidy up

  • Property mode set to 100644
Line 
1 /*****************************************************************************
2  * bdagraph.h : DirectShow BDA graph builder header for vlc
3  *****************************************************************************
4  * Copyright ( C ) 2007 the VideoLAN team
5  *
6  * Author: Ken Self <kens@campoz.fslife.co.uk>
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * ( at your option ) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21  *****************************************************************************/
22
23 /*****************************************************************************
24  * Preamble
25  *****************************************************************************/
26 #include <queue>
27
28 using namespace std;
29 #ifndef _MSC_VER
30 #   include <wtypes.h>
31 #   include <unknwn.h>
32 #   include <ole2.h>
33 #   include <limits.h>
34 #   ifdef _WINGDI_
35 #      undef _WINGDI_
36 #   endif
37 #   define _WINGDI_ 1
38 #   define AM_NOVTABLE
39 #   define _OBJBASE_H_
40 #   undef _X86_
41 #   define _I64_MAX LONG_LONG_MAX
42 #   define LONGLONG long long
43 /* Work-around a bug in w32api-2.5 */
44 /* #   define QACONTAINERFLAGS QACONTAINERFLAGS_SOMETHINGELSE */
45 #endif
46 /* Needed to call CoInitializeEx */
47 #define _WIN32_DCOM
48
49 #include <dshow.h>
50 #include <comcat.h>
51 #include "bdadefs.h"
52 #include "bda.h"
53
54 /* The main class for building the filter graph */
55 class BDAGraph : public ISampleGrabberCB
56 {
57 public:
58     BDAGraph( access_t* p_access );
59     virtual ~BDAGraph();
60
61     int SubmitATSCTuneRequest();
62     int SubmitDVBTTuneRequest();
63     int SubmitDVBCTuneRequest();
64     int SubmitDVBSTuneRequest();
65     long GetBufferSize();
66     long ReadBuffer( long* l_buffer_len, BYTE* p_buff );
67
68 private:
69     /* ISampleGrabberCB methods */
70     STDMETHODIMP_( ULONG ) AddRef( ) { return 1; }
71     STDMETHODIMP_( ULONG ) Release( ) { return 2; }
72     STDMETHODIMP QueryInterface( REFIID riid, void** p_p_object )
73         {return E_NOTIMPL;  }
74     STDMETHODIMP SampleCB( double d_time, IMediaSample* p_sample );
75     STDMETHODIMP BufferCB( double d_time, BYTE* p_buffer, long l_buffer_len );
76
77     access_t* p_access;
78     CLSID     guid_network_type;
79     long      l_tuner_used;        /* Index of the Tuning Device */
80     /* registration number for the RunningObjectTable */
81     DWORD     d_graph_register;
82
83     queue<IMediaSample*> queue_sample;
84     queue<IMediaSample*> queue_buffer;
85     BOOL b_ready;
86
87     IMediaControl*  p_media_control;
88     IGraphBuilder*  p_filter_graph;
89     ITuningSpace*   p_tuning_space;
90     ITuneRequest*   p_tune_request;
91
92     ICreateDevEnum* p_system_dev_enum;
93     IBaseFilter*    p_network_provider;
94     IScanningTuner* p_scanning_tuner;
95     IBaseFilter*    p_tuner_device;
96     IBaseFilter*    p_capture_device;
97     IBaseFilter*    p_sample_grabber;
98     IBaseFilter*    p_mpeg_demux;
99     IBaseFilter*    p_transport_info;
100     ISampleGrabber* p_grabber;
101
102     HRESULT CreateTuneRequest( );
103     HRESULT Build( );
104     HRESULT FindFilter( REFCLSID clsid, long* i_moniker_used,
105         IBaseFilter* p_upstream, IBaseFilter** p_p_downstream );
106     HRESULT Connect( IBaseFilter* p_filter_upstream,
107         IBaseFilter* p_filter_downstream );
108     HRESULT Start( );
109     HRESULT Destroy( );
110     HRESULT Register( );
111     void Deregister( );
112 };
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