1 /* 2 * GStreamer DirectShow codecs wrapper 3 * Copyright <2006, 2007, 2008, 2009, 2010> Fluendo <support@fluendo.com> 4 * Copyright <2006, 2007, 2008> Pioneers of the Inevitable <songbird@songbirdnest.com> 5 * Copyright <2007,2008> Sebastien Moutte <sebastien@moutte.net> 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 23 * DEALINGS IN THE SOFTWARE. 24 * 25 * Alternatively, the contents of this file may be used under the 26 * GNU Lesser General Public License Version 2.1 (the "LGPL"), in 27 * which case the following provisions apply instead of the ones 28 * mentioned above: 29 * 30 * This library is free software; you can redistribute it and/or 31 * modify it under the terms of the GNU Library General Public 32 * License as published by the Free Software Foundation; either 33 * version 2 of the License, or (at your option) any later version. 34 * 35 * This library is distributed in the hope that it will be useful, 36 * but WITHOUT ANY WARRANTY; without even the implied warranty of 37 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 38 * Library General Public License for more details. 39 * 40 * You should have received a copy of the GNU Library General Public 41 * License along with this library; if not, write to the 42 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 43 * Boston, MA 02110-1301, USA. 44 */ 45 46 #ifndef __GST_DSHOWVIDEODEC_H__ 47 #define __GST_DSHOWVIDEODEC_H__ 48 49 #include <gst/gst.h> 50 #include "gstdshowutil.h" 51 #include "gstdshowfakesrc.h" 52 53 G_BEGIN_DECLS 54 55 typedef struct { 56 gchar *element_name; /* The gst element factory name */ 57 gchar *element_longname; /* Description string for element */ 58 gint32 format; /* ??? */ 59 GUID input_majortype; 60 GUID input_subtype; 61 gchar *sinkcaps; /* GStreamer caps of input format */ 62 GUID output_majortype; 63 GUID output_subtype; 64 gchar *srccaps; 65 PreferredFilter *preferred_filters; 66 } VideoCodecEntry; 67 68 #define GST_TYPE_DSHOWVIDEODEC (gst_dshowvideodec_get_type()) 69 #define GST_DSHOWVIDEODEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DSHOWVIDEODEC,GstDshowVideoDec)) 70 #define GST_DSHOWVIDEODEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DSHOWVIDEODEC,GstDshowVideoDecClass)) 71 #define GST_IS_DSHOWVIDEODEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DSHOWVIDEODEC)) 72 #define GST_IS_DSHOWVIDEODEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DSHOWVIDEODEC)) 73 74 typedef struct _GstDshowVideoDec GstDshowVideoDec; 75 typedef struct _GstDshowVideoDecClass GstDshowVideoDecClass; 76 77 class VideoFakeSink; 78 79 struct _GstDshowVideoDec 80 { 81 GstElement element; 82 83 /* element pads */ 84 GstPad *sinkpad; 85 GstPad *srcpad; 86 87 /* caps of our src pad */ 88 GstCaps *srccaps; 89 90 GstFlowReturn last_ret; 91 92 /* list of dshow mediatypes corresponding to the caps list */ 93 GList *mediatypes; 94 95 /* filters interfaces */ 96 FakeSrc *fakesrc; 97 VideoFakeSink *fakesink; 98 99 IBaseFilter *decfilter; 100 101 /* graph manager interfaces */ 102 IMediaFilter *mediafilter; 103 IFilterGraph *filtergraph; 104 105 /* settings */ 106 gint width, height; 107 gint fps_n, fps_d; 108 gint par_n, par_d; 109 110 /* current segment */ 111 GstSegment *segment; 112 113 gboolean setup; 114 115 gboolean comInitialized; 116 GMutex com_init_lock; 117 GMutex com_deinit_lock; 118 GCond com_initialized; 119 GCond com_uninitialize; 120 GCond com_uninitialized; 121 122 GstBufferPool *buffer_pool; 123 }; 124 125 struct _GstDshowVideoDecClass 126 { 127 GstElementClass parent_class; 128 const VideoCodecEntry *entry; 129 }; 130 131 gboolean dshow_vdec_register (GstPlugin * plugin); 132 133 const GUID CLSID_VideoFakeSink = 134 { 0xff8f0c8e, 0x64f9, 0x4471, 135 { 0x96, 0x0e, 0xd2, 0xd3, 0x18, 0x87, 0x78, 0x9a} }; 136 137 class VideoFakeSink : public CBaseRenderer 138 { 139 public: VideoFakeSink(GstDshowVideoDec * dec)140 VideoFakeSink(GstDshowVideoDec *dec) : 141 m_hres(S_OK), 142 CBaseRenderer(CLSID_VideoFakeSink, _T("VideoFakeSink"), NULL, &m_hres), 143 mDec(dec) 144 {}; ~VideoFakeSink()145 virtual ~VideoFakeSink() {}; 146 147 HRESULT DoRenderSample(IMediaSample *pMediaSample); 148 HRESULT CheckMediaType(const CMediaType *pmt); SetMediaType(AM_MEDIA_TYPE * pmt)149 HRESULT SetMediaType (AM_MEDIA_TYPE *pmt) 150 { 151 m_MediaType.Set (*pmt); 152 return S_OK; 153 } 154 155 protected: 156 HRESULT m_hres; 157 CMediaType m_MediaType; 158 GstDshowVideoDec *mDec; 159 }; 160 161 G_END_DECLS 162 163 #endif /* __GST_DSHOWVIDEODEC_H__ */ 164