Gnash 0.8.10dev
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00001 // VideoDecoderGst.h: Video decoding using Gstreamer. 00002 // 00003 // Copyright (C) 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc. 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 3 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program; if not, write to the Free Software 00017 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00018 00019 #ifndef GNASH_VIDEODECODERGST_H 00020 #define GNASH_VIDEODECODERGST_H 00021 00022 #include "GnashImage.h" 00023 #include "log.h" 00024 #include "VideoDecoder.h" 00025 #include "dsodefs.h" 00026 #include "MediaParser.h" // for videoCodecType enum 00027 00028 #include <gst/gst.h> 00029 00030 00031 #include "swfdec_codec_gst.h" 00032 00033 00034 namespace gnash { 00035 namespace media { 00036 namespace gst { 00037 00038 // Convenience wrapper for GstBuffer. Intended to be wrapped in an auto_ptr. 00039 class gnashGstBuffer : public image::ImageRGB 00040 { 00041 public: 00042 gnashGstBuffer(GstBuffer* buf, int width, int height) 00043 : image::ImageRGB(NULL, width, height), 00044 _buffer(buf) 00045 {} 00046 00047 ~gnashGstBuffer() 00048 { 00049 gst_buffer_unref(_buffer); 00050 } 00051 00052 virtual size_t stride() const { 00053 return (width() * channels() + 3) &~ 3; 00054 } 00055 00056 virtual iterator begin() 00057 { 00058 return GST_BUFFER_DATA(_buffer); 00059 } 00060 00061 virtual const_iterator begin() const 00062 { 00063 return GST_BUFFER_DATA(_buffer); 00064 } 00065 00066 private: 00067 GstBuffer* _buffer; 00068 }; 00069 00070 00072 class DSOEXPORT VideoDecoderGst : public VideoDecoder 00073 { 00074 public: 00075 VideoDecoderGst(videoCodecType codec_type, int width, int height, 00076 const boost::uint8_t* extradata, size_t extradatasize); 00077 VideoDecoderGst(GstCaps* caps); 00078 ~VideoDecoderGst(); 00079 00080 void push(const EncodedVideoFrame& buffer); 00081 00082 std::auto_ptr<image::GnashImage> pop(); 00083 00084 bool peek(); 00085 00087 // 00089 int width() const; 00090 00092 // 00094 int height() const; 00095 00096 private: 00097 00098 int _width; 00099 int _height; 00100 00101 void setup(GstCaps* caps); 00102 00103 VideoDecoderGst(); 00104 VideoDecoderGst(const VideoDecoderGst&); 00105 00106 SwfdecGstDecoder _decoder; 00107 }; 00108 00109 00110 } // gnash.media.gst namespace 00111 } // namespace media 00112 } // namespace gnash 00113 #endif // __VIDEODECODERGST_H__