1 files changed, 120 insertions, 0 deletions
diff --git a/src/plugins/Input/mpeg/decoder_mad.h b/src/plugins/Input/mpeg/decoder_mad.h
new file mode 100644
index 000000000..3cf1c1b35
--- /dev/null
+++ b/src/plugins/Input/mpeg/decoder_mad.h
@@ -0,0 +1,120 @@
+/***************************************************************************
+ *  Based on mq3 and madplay projects                                      *
+ *                                                                         *
+ * Copyright (c) 2000-2001 Brad Hughes <bhughes@trolltech.com>             *
+ * Copyright (C) 2000-2004 Robert Leslie <rob@mars.org>                    *
+ * Copyright (C) 2009-2018 Ilya Kotov forkotov02@ya.ru                     *
+ *                                                                         *
+ *   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 2 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.         *
+ ***************************************************************************/
+
+#ifndef   DECODER_MAD_H
+#define   DECODER_MAD_H
+
+class QIODevice;
+class DecoderMAD;
+
+#include <qmmp/decoder.h>
+#include "decodermpegfactory.h"
+
+extern "C"
+{
+#include <mad.h>
+}
+
+class DecoderMAD : public Decoder
+{
+public:
+    DecoderMAD(QIODevice *i);
+    virtual ~DecoderMAD();
+
+    // standard decoder API
+    bool initialize();
+    qint64 totalTime() const;
+    int bitrate() const;
+    qint64 read(unsigned char *data, qint64 size);
+    void seek(qint64);
+
+private:
+    //LAME header
+    struct LameHeader
+    {
+        unsigned char revision;
+        unsigned char flags;
+        mad_fixed_t peak;
+        unsigned short start_delay;
+        unsigned short end_padding;
+        qint8 gain;
+    };
+    // helper functions
+    bool decodeFrame();
+    qint64 madOutputFloat(float *data, qint64 samples);
+    bool fillBuffer();
+    void deinit();
+    bool findHeader();
+    bool findXingHeader(struct mad_bitptr, unsigned int bitlen);
+    LameHeader *findLameHeader(struct mad_bitptr ptr, unsigned int bitlen);
+    uint findID3v2(uchar *data, ulong size);
+    bool m_inited, m_eof;
+    qint64 m_totalTime;
+    int m_channels, m_skip_frames;
+    uint m_bitrate;
+    long m_freq, m_len;
+
+    // file input buffer
+    char *m_input_buf;
+    qint64 m_input_bytes;
+
+    // MAD decoder
+
+    //xing header
+    struct XingHeader
+    {
+        int flags;
+        unsigned long frames;
+        unsigned long bytes;
+        unsigned char toc[100];
+        long scale;
+        LameHeader *lame;
+
+        XingHeader()
+        {
+            flags = 0;
+            frames = 0;
+            bytes = 0;
+            scale = 0;
+            lame = 0;
+        }
+    };
+    XingHeader m_xing;
+
+    enum
+    {
+        XING_FRAMES = 0x0001,
+        XING_BYTES  = 0x0002,
+        XING_TOC    = 0x0004,
+        XING_SCALE  = 0x0008
+    };
+
+    struct mad_stream m_stream;
+    struct mad_frame m_frame;
+    struct mad_synth m_synth;
+    qint64 m_skip_bytes, m_play_bytes;
+
+};
+
+
+#endif // DECODER_MAD_H