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+/*
+ Copyright (C) 2014 Matthias P. Braendli (http://www.opendigitalradio.org)
+
+ 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, see <http://www.gnu.org/licenses/>.
+
+ faad_decoder.h
+ Use libfaad to decode the AAC content of the DAB+ subchannel
+
+ Authors:
+ Matthias P. Braendli <matthias@mpb.li>
+*/
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <string>
+#include <sstream>
+#include <vector>
+#include <neaacdec.h>
+
+#ifndef __FAAD_DECODER_H_
+#define __FAAD_DECODER_H_
+
+class FaadHandle
+{
+ public:
+ FaadHandle()
+ {
+ decoder = NeAACDecOpen();
+ }
+
+ FaadHandle(const FaadHandle&)
+ {
+ this->decoder = NeAACDecOpen();
+ }
+
+ FaadHandle& operator=(const FaadHandle&)
+ {
+ this->decoder = NeAACDecOpen();
+ return *this;
+ }
+
+ ~FaadHandle()
+ {
+ NeAACDecClose(decoder);
+ decoder = NULL;
+ }
+
+ NeAACDecHandle decoder;
+};
+
+class FaadDecoder
+{
+ public:
+ FaadDecoder();
+
+ void open(std::string filename, bool ps_flag, bool aac_channel_mode,
+ bool dac_rate, bool sbr_flag, int mpeg_surround_config);
+
+ void close(void);
+
+ bool decode(std::vector<std::vector<uint8_t> > aus);
+
+ bool is_initialised(void) { return m_initialised; }
+
+ private:
+ int get_aac_channel_configuration();
+ size_t m_data_len;
+
+ std::string m_filename;
+ FILE* m_fd;
+
+ /* Data needed for FAAD */
+ bool m_ps_flag;
+ bool m_aac_channel_mode;
+ bool m_dac_rate;
+ bool m_sbr_flag;
+ int m_mpeg_surround_config;
+
+ int m_channels;
+ int m_sample_rate;
+
+ bool m_initialised;
+ FaadHandle m_faad_handle;
+};
+
+#endif
+