LameLibrary - separated lame functionality
LameLibrary can now be easily used to access lame functionality. This way we can use the same lame structure for SampleBuffer
This commit is contained in:
Andrew Kelley
@@ -29,16 +29,11 @@
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#define _AUDIO_FILE_MP3_H
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#include <QFile>
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#include <QLibrary>
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#include "lame_library.h"
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#include "lmmsconfig.h"
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#include "audio_file_device.h"
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#include "lame.h"
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#include <sndfile.h>
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class AudioFileMp3 : public audioFileDevice
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{
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public:
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@@ -74,58 +69,6 @@ public:
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private:
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// functions we'll be importing from lame
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typedef lame_global_flags *lame_init_t(void);
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typedef int lame_init_params_t(lame_global_flags*);
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typedef const char* get_lame_version_t(void);
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typedef int lame_encode_buffer_t (
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lame_global_flags* gf,
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const short int buffer_l [],
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const short int buffer_r [],
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const int nsamples,
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unsigned char * mp3buf,
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const int mp3buf_size );
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typedef int lame_encode_buffer_interleaved_t(
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lame_global_flags* gf,
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short int pcm[],
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int num_samples, /* per channel */
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unsigned char* mp3buf,
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int mp3buf_size );
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typedef int lame_encode_flush_t(
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lame_global_flags *gf,
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unsigned char* mp3buf,
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int size );
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typedef int lame_close_t(lame_global_flags*);
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typedef int lame_set_in_samplerate_t(lame_global_flags*, int);
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typedef int lame_set_out_samplerate_t(lame_global_flags*, int);
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typedef int lame_set_num_channels_t(lame_global_flags*, int );
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typedef int lame_set_quality_t(lame_global_flags*, int);
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typedef int lame_set_brate_t(lame_global_flags*, int);
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typedef int lame_set_VBR_t(lame_global_flags *, vbr_mode);
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typedef int lame_set_VBR_q_t(lame_global_flags *, int);
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typedef int lame_set_VBR_min_bitrate_kbps_t(lame_global_flags *, int);
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typedef int lame_set_mode_t(lame_global_flags *, MPEG_mode);
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typedef int lame_set_preset_t(lame_global_flags *, int);
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typedef int lame_set_error_protection_t(lame_global_flags *, int);
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typedef int lame_set_disable_reservoir_t(lame_global_flags *, int);
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typedef int lame_set_padding_type_t(lame_global_flags *, Padding_type);
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typedef int lame_set_bWriteVbrTag_t(lame_global_flags *, int);
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typedef size_t lame_get_lametag_frame_t(const lame_global_flags *, unsigned char* buffer, size_t size);
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typedef void lame_mp3_tags_fid_t(lame_global_flags *, FILE *);
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typedef int lame_set_findReplayGain_t(lame_global_flags *, int);
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typedef int lame_set_VBR_quality_t(lame_global_flags *, float);
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typedef int lame_set_VBR_mean_bitrate_kbps_t(lame_global_flags *, int);
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typedef int lame_set_VBR_max_bitrate_kbps_t(lame_global_flags *, int);
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bool initLame(QString libpath);
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short int rescale(float sample); // convert float flame to short int frame
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// overloaded functions
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@@ -136,45 +79,14 @@ private:
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bool startEncoding( void );
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void finishEncoding( void );
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bool m_ok; // true if we need to close the handle in finishEncoding
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// handle to lame
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lame_global_flags *m_lgf;
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QLibrary * m_lame; // lame .so file
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LameLibrary m_lame;
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QFile * m_outfile;
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bool m_hq_mode; // true if we want really high quality
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/* function pointers to the symbols we get from the library */
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lame_init_t* lame_init;
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lame_init_params_t* lame_init_params;
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lame_encode_buffer_t* lame_encode_buffer;
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lame_encode_buffer_interleaved_t* lame_encode_buffer_interleaved;
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lame_encode_flush_t* lame_encode_flush;
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lame_close_t* lame_close;
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get_lame_version_t* get_lame_version;
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lame_set_in_samplerate_t* lame_set_in_samplerate;
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lame_set_out_samplerate_t* lame_set_out_samplerate;
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lame_set_num_channels_t* lame_set_num_channels;
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lame_set_quality_t* lame_set_quality;
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lame_set_brate_t* lame_set_brate;
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lame_set_VBR_t* lame_set_VBR;
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lame_set_VBR_q_t* lame_set_VBR_q;
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lame_set_VBR_min_bitrate_kbps_t* lame_set_VBR_min_bitrate_kbps;
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lame_set_mode_t* lame_set_mode;
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lame_set_preset_t* lame_set_preset;
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lame_set_error_protection_t* lame_set_error_protection;
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lame_set_disable_reservoir_t *lame_set_disable_reservoir;
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lame_set_padding_type_t *lame_set_padding_type;
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lame_set_bWriteVbrTag_t *lame_set_bWriteVbrTag;
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lame_get_lametag_frame_t *lame_get_lametag_frame;
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lame_mp3_tags_fid_t *lame_mp3_tags_fid;
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lame_set_findReplayGain_t *lame_set_findReplayGain;
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lame_set_VBR_quality_t *lame_set_VBR_quality;
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lame_set_VBR_mean_bitrate_kbps_t *lame_set_VBR_mean_bitrate_kbps;
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lame_set_VBR_max_bitrate_kbps_t *lame_set_VBR_max_bitrate_kbps;
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} ;
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132
include/lame_library.h
Normal file
132
include/lame_library.h
Normal file
@@ -0,0 +1,132 @@
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/*
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* lame_library.h - Manages loading and unloading of lame library dynamically
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*
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*
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* Copyright (c) 2004-2008 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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* 2009 Andrew Kelley <superjoe30@gmail.com>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef _LAME_LIBRARY_H_
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#define _LAME_LIBRARY_H_
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#include <QLibrary>
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#include "lame.h"
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#include "config_mgr.h"
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class LameLibrary {
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private:
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// functions we'll be importing from lame
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typedef lame_global_flags *lame_init_t(void);
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typedef int lame_init_params_t(lame_global_flags*);
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typedef const char* get_lame_version_t(void);
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typedef int lame_encode_buffer_t (
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lame_global_flags* gf,
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const short int buffer_l [],
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const short int buffer_r [],
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const int nsamples,
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unsigned char * mp3buf,
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const int mp3buf_size );
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typedef int lame_encode_buffer_interleaved_t(
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lame_global_flags* gf,
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short int pcm[],
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int num_samples, /* per channel */
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unsigned char* mp3buf,
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int mp3buf_size );
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typedef int lame_encode_flush_t(
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lame_global_flags *gf,
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unsigned char* mp3buf,
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int size );
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typedef int lame_close_t(lame_global_flags*);
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typedef int lame_set_in_samplerate_t(lame_global_flags*, int);
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typedef int lame_set_out_samplerate_t(lame_global_flags*, int);
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typedef int lame_set_num_channels_t(lame_global_flags*, int );
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typedef int lame_set_quality_t(lame_global_flags*, int);
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typedef int lame_set_brate_t(lame_global_flags*, int);
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typedef int lame_set_VBR_t(lame_global_flags *, vbr_mode);
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typedef int lame_set_VBR_q_t(lame_global_flags *, int);
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typedef int lame_set_VBR_min_bitrate_kbps_t(lame_global_flags *, int);
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typedef int lame_set_mode_t(lame_global_flags *, MPEG_mode);
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typedef int lame_set_preset_t(lame_global_flags *, int);
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typedef int lame_set_error_protection_t(lame_global_flags *, int);
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typedef int lame_set_disable_reservoir_t(lame_global_flags *, int);
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typedef int lame_set_padding_type_t(lame_global_flags *, Padding_type);
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typedef int lame_set_bWriteVbrTag_t(lame_global_flags *, int);
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typedef size_t lame_get_lametag_frame_t(const lame_global_flags *, unsigned char* buffer, size_t size);
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typedef void lame_mp3_tags_fid_t(lame_global_flags *, FILE *);
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typedef int lame_set_findReplayGain_t(lame_global_flags *, int);
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typedef int lame_set_VBR_quality_t(lame_global_flags *, float);
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typedef int lame_set_VBR_mean_bitrate_kbps_t(lame_global_flags *, int);
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typedef int lame_set_VBR_max_bitrate_kbps_t(lame_global_flags *, int);
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public:
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LameLibrary(); // loads lame library
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~LameLibrary(); // unloads lame library
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bool isLoaded(); // returns whether or not lame is correctly attached
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/* function pointers to the symbols we get from the library */
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lame_init_t* lame_init;
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lame_init_params_t* lame_init_params;
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lame_encode_buffer_t* lame_encode_buffer;
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lame_encode_buffer_interleaved_t* lame_encode_buffer_interleaved;
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lame_encode_flush_t* lame_encode_flush;
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lame_close_t* lame_close;
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get_lame_version_t* get_lame_version;
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lame_set_in_samplerate_t* lame_set_in_samplerate;
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lame_set_out_samplerate_t* lame_set_out_samplerate;
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lame_set_num_channels_t* lame_set_num_channels;
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lame_set_quality_t* lame_set_quality;
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lame_set_brate_t* lame_set_brate;
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lame_set_VBR_t* lame_set_VBR;
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lame_set_VBR_q_t* lame_set_VBR_q;
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lame_set_VBR_min_bitrate_kbps_t* lame_set_VBR_min_bitrate_kbps;
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lame_set_mode_t* lame_set_mode;
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lame_set_preset_t* lame_set_preset;
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lame_set_error_protection_t* lame_set_error_protection;
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lame_set_disable_reservoir_t *lame_set_disable_reservoir;
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lame_set_padding_type_t *lame_set_padding_type;
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lame_set_bWriteVbrTag_t *lame_set_bWriteVbrTag;
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lame_get_lametag_frame_t *lame_get_lametag_frame;
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lame_mp3_tags_fid_t *lame_mp3_tags_fid;
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lame_set_findReplayGain_t *lame_set_findReplayGain;
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lame_set_VBR_quality_t *lame_set_VBR_quality;
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lame_set_VBR_mean_bitrate_kbps_t *lame_set_VBR_mean_bitrate_kbps;
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lame_set_VBR_max_bitrate_kbps_t *lame_set_VBR_max_bitrate_kbps;
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private:
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QLibrary * m_lameLib; // lame .so file
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};
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#endif
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