new object oriented inputs: Test, File

1 files changed, 121 insertions, 0 deletions

diff --git a/src/inputs/Input.h b/src/inputs/Input.h
new file mode 100644
index 0000000..943b498
--- /dev/null
+++ b/src/inputs/Input.h
@@ -0,0 +1,121 @@
+/*
+   Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Her Majesty the Queen in
+   Right of Canada (Communications Research Center Canada)
+
+   Copyright (C) 2013 Matthias P. Braendli
+   http://mpb.li
+
+   */
+/*
+   This file is part of CRC-DabMux.
+
+   CRC-DabMux 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.
+
+   CRC-DabMux 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 CRC-DabMux.  If not, see <http://www.gnu.org/licenses/>.
+   */
+
+#ifndef _INPUT_H_
+#define _INPUT_H_
+
+#ifdef HAVE_CONFIG_H
+#   include "config.h"
+#endif
+
+#include <vector>
+#include <string>
+#include <stdint.h>
+
+class InputBase {
+
+    public:
+        virtual int Open();
+        virtual int Lock(); // TODO get rid of lock/unlock
+        virtual int Unlock();
+
+        // ReadFrame must return exactly the right number of bytes
+        // for the format, which means it must fill the buffer to
+        // <size> bytes.
+        virtual int ReadFrame(void* buffer, int size);
+
+        // TODO: ehm, where do we need this ?
+        virtual int SetBitrate(int bitrate);
+
+        virtual int Close();
+        virtual int Clean(); // TODO destructor
+        virtual int Rewind();
+};
+
+/********************************************/
+/**   TEST INPUT      ***********************/
+/********************************************/
+
+// Implement mostly everything, but don't do anything
+class InputTest : InputBase {
+    public:
+        InputTest() : counter(0) {}
+        int Open();
+        int Lock();
+        int Unlock();
+        int ReadFrame(void* buffer, int size);
+        int SetBitrate(int bitrate);
+        int Close();
+        int Clean();
+        int Rewind();
+
+    private:
+        unsigned long counter;
+};
+
+
+/********************************************/
+/**   FILE INPUTS     ***********************/
+/********************************************/
+
+#ifdef HAVE_INPUT_FILE
+
+// The InputFile is not used directly but defines some behaviour
+// for Fifo, and also for different file types.
+class InputFile : InputBase {
+    public:
+        InputFile(std::string fileName) : filename(fileName) {}
+        int Open();
+        int Close();
+        int Rewind();
+    protected:
+        std::string filename;
+        int file; // the file descriptor
+};
+
+#ifdef HAVE_FORMAT_MPEG
+class InputMpegFile : InputFile {
+    public:
+        InputMpegFile(std::string fileName) : filename(fileName) {}
+        int ReadFrame(void* buffer, int size);
+    private:
+        bool parity;
+};
+#endif // HAVE_FORMAT_MPEG
+
+#ifdef HAVE_FORMAT_DABPLUS
+class InputDabplusFile : InputFile {
+    public:
+        InputMpegFile(std::string fileName) : filename(fileName) {}
+        int ReadFrame(void* buffer, int size);
+    private:
+        int Read(void* buffer, int size);
+        std::vector<uint8_t> buffer;
+        size_t bufferIndex;
+};
+#endif
+
+#endif
+