socket_pair.h 3.02 KB
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/*
 *  Copyright (C) 2004-2013 Savoir-Faire Linux Inc.
 *  Copyright (C) 2012 VLC authors and VideoLAN
 *  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
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
 *
 *  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.
 */

#ifndef SOCKET_PAIR_H_
#define SOCKET_PAIR_H_

#include <sys/socket.h>
#include <pthread.h>
#include <stdint.h>

// FIXME: newer libavformat allows us to do forward declaration
// of AVIOContext and thus avoid this include
extern "C" {
#include <libavformat/avio.h>
}

/* LIBAVFORMAT_VERSION_CHECK checks for the right version of libav and FFmpeg
 * a is the major version
 * b and c the minor and micro versions of libav
 * d and e the minor and micro versions of FFmpeg */
#define LIBAVFORMAT_VERSION_CHECK( a, b, c, d, e ) \
    ( (LIBAVFORMAT_VERSION_MICRO <  100 && LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT( a, b, c ) ) || \
      (LIBAVFORMAT_VERSION_MICRO >= 100 && LIBAVFORMAT_VERSION_INT >= AV_VERSION_INT( a, d, e ) ) )

#define HAVE_SDP_CUSTOM_IO LIBAVFORMAT_VERSION_CHECK(54,20,3,59,103)

namespace sfl_video {

class VideoSendThread;
class VideoReceiveThread;

class SocketPair {
    public:
        SocketPair(const char *uri, int localPort);
        ~SocketPair();

        void interrupt();

        AVIOContext *
        createAVIOContext();

        void openSockets(const char *uri, int localPort);
        void closeSockets();
        static int readCallback(void *opaque, uint8_t *buf, int buf_size);
        static int writeCallback(void *opaque, uint8_t *buf, int buf_size);

        pthread_mutex_t rtcpWriteMutex_;

        int rtpHandle_;
        int rtcpHandle_;
        sockaddr_storage rtpDestAddr_;
        socklen_t rtpDestAddrLen_;
        sockaddr_storage rtcpDestAddr_;
        socklen_t rtcpDestAddrLen_;
        bool interrupted_;
};

}

#endif  // SOCKET_PAIR_H_