video_receive_thread.h 3.61 KB
Newer Older
1
/*
2
 *  Copyright (C) 2011-2012 Savoir-Faire Linux Inc.
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 *  Author: Tristan Matthews <tristan.matthews@savoirfairelinux.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
17
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
18
19
20
21
22
23
24
25
26
27
28
29
30
 *
 *  Additional permission under GNU GPL version 3 section 7:
 *
 *  If you modify this program, or any covered work, by linking or
 *  combining it with the OpenSSL project's OpenSSL library (or a
 *  modified version of that library), containing parts covered by the
 *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
 *  grants you additional permission to convey the resulting work.
 *  Corresponding Source for a non-source form of such a combination
 *  shall include the source code for the parts of OpenSSL used as well
 *  as that of the covered work.
 */

31
32
#ifndef _VIDEO_RECEIVE_THREAD_H_
#define _VIDEO_RECEIVE_THREAD_H_
33
34
35

#include <map>
#include <string>
36
#include <climits>
37
38
#include <sstream>
#include <tr1/memory>
39
#include "shm_sink.h"
40
#include "noncopyable.h"
41
#include "video_provider.h"
42

43
44
45
46
extern "C" {
#include <libavformat/avformat.h>
}

47
48
49
50
51
52
class SwsContext;
class AVCodecContext;
class AVStream;
class AVFormatContext;
class AVFrame;
namespace sfl_video {
53

54
55
class SocketPair;

56
class VideoReceiveThread : public VideoProvider {
57
    private:
58
59
        NON_COPYABLE(VideoReceiveThread);
        std::map<std::string, std::string> args_;
60
61
62
63

        /*-------------------------------------------------------------*/
        /* These variables should be used in thread (i.e. run()) only! */
        /*-------------------------------------------------------------*/
Rafaël Carré's avatar
Rafaël Carré committed
64

65
        AVCodec *inputDecoder_;
66
67
68
        AVCodecContext *decoderCtx_;
        AVFrame *rawFrame_;
        AVFrame *scaledPicture_;
Tristan Matthews's avatar
Tristan Matthews committed
69
        int streamIndex_;
70
        AVFormatContext *inputCtx_;
71
        SwsContext *imgConvertCtx_;
72

Rafaël Carré's avatar
Rafaël Carré committed
73
74
        int dstWidth_;
        int dstHeight_;
75

76
        SHMSink sink_;
77
        bool threadRunning_;
78
        size_t bufferSize_;
79
        const std::string id_;
80
81
        AVIOInterruptCB interruptCb_;
        void (* requestKeyFrameCallback_)(const std::string &);
82
83
        std::tr1::shared_ptr<unsigned char> sdpBuffer_;
        std::istringstream stream_;
84
85
        std::tr1::shared_ptr<AVIOContext> sdpContext_;
        std::tr1::shared_ptr<AVIOContext> demuxContext_;
86

87
        void setup();
88
        void openDecoder();
89
        void createScalingContext();
90
        void fillBuffer(void *data);
91
        static int interruptCb(void *ctx);
92
        friend struct VideoRxContextHandle;
93
94
95
        static void *runCallback(void *);
        pthread_t thread_;
        void run();
96
97
        bool decodeFrame();
        void renderFrame();
Rafaël Carré's avatar
Rafaël Carré committed
98

99
    public:
100
        VideoReceiveThread(const std::string &id, const std::map<std::string, std::string> &args);
101
        void addIOContext(SocketPair &socketPair);
102
        void addDetails(std::map<std::string, std::string> &details);
103
104
        ~VideoReceiveThread();
        void start();
105
        void setRequestKeyFrameCallback(void (*)(const std::string &));
106
107
108
};
}

109
#endif // _VIDEO_RECEIVE_THREAD_H_