+++ /dev/null
-# in_flac - Winamp3 FLAC input plugin\r
-# Copyright (C) 2001 Josh Coalson\r
-#\r
-# This program is free software; you can redistribute it and/or\r
-# modify it under the terms of the GNU General Public License\r
-# as published by the Free Software Foundation; either version 2\r
-# of the License, or (at your option) any later version.\r
-#\r
-# This program is distributed in the hope that it will be useful,\r
-# but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-# GNU General Public License for more details.\r
-#\r
-# You should have received a copy of the GNU General Public License\r
-# along with this program; if not, write to the Free Software\r
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\r
-\r
-!include <win32.mak>\r
-\r
-!IFDEF DEBUG\r
-.c.obj:\r
- $(cc) /GX $(cdebug) $(cflags) $(cvarsdll) /I "..\..\include" /I ".\include" -DSTRICT -YX /Od /D "_DEBUG" $<\r
-!else\r
-.c.obj:\r
- $(cc) /O2 $(crelease) $(cflags) $(cvarsdll) /I "..\..\include" /I ".\include" -DSTRICT -YX -DNODEBUG $<\r
-!endif\r
-\r
-C_FILES= \\r
- in_flac.c\r
-\r
-OBJS= $(C_FILES:.c=.obj)\r
-\r
-all: in_flac.dll\r
-\r
-in_flac.dll: $(OBJS)\r
- link.exe /dll /libpath:"..\..\obj\lib" -out:../../obj/bin/$*.dll $(OBJS) libFLAC.lib user32.lib kernel32.lib\r
-\r
-clean:\r
- -del *.obj *.pch\r
- -del ..\..\obj\bin\in_flac.*\r
+++ /dev/null
-
-/* Winamp 3 Player core api v0.1
-** (c)2000 nullsoft jcf/ct/dk
-** Notes:
-** Keep in mind that this header file is subject to change prior to the
-** release of Winamp 3. The ability to configure plug-ins has yet to be
-** added and is the first and foremost concern of the engineering team.
-*/
-
-#ifndef __CORE_API_H
-#define __CORE_API_H
-
-// Visual C 6 makes big unaligned dlls. the following will correct it
-#ifndef _DEBUG
-// release optimizations
-// /Og (global optimizations), /Os (favor small code), /Oy (no frame pointers)
-#pragma optimize("gsy",on)
-#pragma comment(linker,"/RELEASE")
-// set the 512-byte alignment
-#pragma comment(linker,"/opt:nowin98")
-#endif
-
-// Use Assert in your code to catch errors that shouldn't happen, when compiled in release mode, they are #defined out
-#ifndef ASSERT
-#ifdef _DEBUG
-#define ASSERT(x) if (!(x)) MessageBox(NULL,"ASSERT FAILED: " #x,"ASSERT FAILED in " __FILE__ ,MB_OK|MB_ICONSTOP);
-#else
-#define ASSERT(x)
-#endif
-#endif
-
-
-
-/* CLASS DESCRIPTIONS */
-
-/* WReader
-** File reader module class, ie. opens and reads files, streams
-*/
-class WReader;
-
-/* WInputInfo
-** Class that returns information (length, title, metadata) about a specified file
-*/
-class WInputInfo;
-
-/* WInfo_callback
-** Player's interface that provides Winamp 3 core functions to your WInputInfo classes
-*/
-class WInfo_callback;
-
-/* WInputSource
-** Input Source manager base class, ie. decodes mp3's, wavs
-*/
-class WInputSource;
-
-/* WOutputFilter
-** Abstract base class for any Output Filter plug-in, ie. changes pitch, converts format, outputs to speakers
-*/
-class WOutputFilter;
-
-/* WPlayer_callback
-** Player's interface that provides Winamp 3 core functions to your Input Sources and Output Filter plug-ins
-** (Getting a reader for opening a file, sending stuff about what's going on to the Winamp 3 core)
-*/
-class WPlayer_callback;
-
-
-
-
-class WPlayer_callback
-{
- public:
- /* GetReader
- ** Allows your Input Source and Output Filter plugins to request a reader from Winamp,
- ** so you don't have to worry about opening files or streams
- */
- virtual WReader *GetReader(char *url)=0;
-
-
- /* The 3 following functions allows your Input Source and Output Filter plugins to send error/warning/status
- ** messages back to the Winamp 3 core
- */
-
- /* Error
- ** playback should stop (soundcard driver error, etc)
- */
- virtual void Error(char *reason)=0;
-
- /* Warning
- ** warning (something recoverable, like file not found, etc)
- */
- virtual void Warning(char *warning)=0;
-
- /* Status
- ** status update (nothing really wrong)
- */
- virtual void Status(char *status)=0;
-
-
-
-
- /* TitleChange
- ** should be called if the current file titlename changes during the decoding
- */
- virtual void TitleChange(char *new_title)=0;
-
- /* InfoChange
- ** should be called if the infos about the current file changes during the decoding
- */
- virtual void InfoChange(char *new_info_str, int new_length)=0;
-
- /* UrlChange
- ** should be called if the current file associated URL changes during the decoding
- */
- virtual void UrlChange(char *new_url)=0;
-};
-
-
-
-
-class WInfo_callback
-{
- public:
- /* GetReader
- ** Allows your WInfo classes to request a reader from Winamp
- ** so you don't have to worry about opening files or streams
- */
- virtual WReader *GetReader(char *url)=0;
-};
-
-
-
-
-class WInputInfo
-{
- public:
- /* WInputInfo
- ** WInputInfo constructor
- */
- WInputInfo(){ };
-
- /* m_info
- ** Filled by Winamp. Pointer to WInputInfo callback function
- */
- WInfo_callback *m_info;
-
- /* Open
- ** Called by Winamp to request informations about a specified media (file, url, etc...)
- ** returns 0 if succesful, 1 if not
- **
- ** You must open, get all information and close the specified file here and store
- ** the useful information into member elements for quick access by other functions
- */
- virtual int Open(char *url) { return 1; }
-
- /* GetTitle
- ** Called by Winamp to get the decoded title about the file opened
- ** i.e. id3 title name, etc...
- */
- virtual void GetTitle(char *buf, int maxlen) { if (maxlen>0) buf[0]=0; };
-
- /* GetInfoString
- ** Called by Winamp to get extra informations about the file opened
- ** i.e. "160kbps stereo 44Khz" for MP3 files,"4 channels" for MOD files,etc...
- */
- virtual void GetInfoString(char *buf, int maxlen) { if (maxlen>0) buf[0]=0; };
-
- /* GetLength
- ** Called by Winamp to retrieves media type length in milliseconds
- ** returns -1 if length is undefined/infinite
- */
- virtual int GetLength(void) { return -1; };
-
- /* GetMetaData
- ** Fetches metadata by attribute name (Artist, Album, Bitrate, etc...)
- ** attribute names are non case-sensitive.
- ** returns size of data
- */
- virtual int GetMetaData(char *name, char *data, int data_len) { if (data&&data_len>0) *data=0; return 0; }
-
- /* ~WInputInfo
- ** WInputInfo virtual destructor
- */
- virtual ~WInputInfo() { };
-};
-
-
-
-
-
-
-
-
-/* WINAMP Output Filter NOTIFY MESSAGES
-** Messages returned to notify Output Filter plug-ins of events
-*/
-
-typedef enum {
-
- /* WOFNM_FILETITLECHANGE
- ** Sent when the song changes
- ** param1=new filename song
- ** param2=new title song
- */
- WOFNM_FILETITLECHANGE=1024,
-
- /* WOFNM_ENDOFDECODE
- ** Sent when decoding ends
- */
- WOFNM_ENDOFDECODE,
-
-} WOutputFilterNotifyMsg;
-
-
-
-
-class WOutputFilter
-{
- protected:
- /* WOutputFilter
- ** WOutputFilter constructor
- */
- WOutputFilter() { m_next=NULL; };
-
- public:
- /* m_player
- ** Filled by Winamp. Pointer to Winamp 3 core player interface
- */
- WPlayer_callback *m_player;
-
- /* m_next
- ** Internally used by Winamp. Pointer to next activated Output Filter
- */
- WOutputFilter *m_next;
-
- /* ~WOutputFilter
- ** WOutputFilter destructor
- */
- virtual ~WOutputFilter() { };
-
- /* GetDescription
- ** Retrieves your plug-in's text description
- */
- virtual char *GetDescription() { return "Unknown"; };
-
- /* ProcessSamples
- ** Render data as it receives it
- ** sampledata: Data to process
- ** bytes: number of bytes to process
- ** bps: Bits per sample (8 or 16)
- ** nch: Number of channels (1 or 2)
- ** srate: Sample rate in Hz
- ** killswitch: Will be set to 1 by winamp if stop if requested. Poll the pointed value very often to
- ** make sure Winamp doesn't hang
- **
- ** Returns the number of processed bytes or -1 if unable to open the device or an error occured.
- **
- ** You have to open your device (ie. Directsound) the first time this function is called.
- */
- virtual int ProcessSamples(char *sampledata, int bytes, int *bps, int *nch, int *srate, bool *killswitch) { return bytes; }
-
- /* FlushSamples
- ** Flushes output buffers so that all is written
- */
- virtual void FlushSamples(bool *killswitch) { };
-
- /* Restart
- ** Called by Winamp after a seek
- */
- virtual void Restart(void) { }
-
- /* GetLatency
- ** Returns < 0 for a final output latency, > 0 for an additive
- */
- virtual int GetLatency(void) { return 0; }
-
- /* Pause
- ** Suspends output
- */
- virtual void Pause(int pause) { }
-
- /* ShutDown
- ** Completely stops output
- **
- ** Close your device here (not in destructor)
- */
- virtual void ShutDown(void) { }
-
- /* SetVolume
- ** Sets the volume (0 to 255)
- ** return 1 if volume successfully modified
- */
- virtual int SetVolume(int volume) { return 0; }
-
- /* SetPan
- ** Sets Left-Right sound balance (-127 to 127)
- ** return 1 if pan successfully modified
- */
- virtual int SetPan(int pan) { return 0; }
-
- /* Notify
- ** Called by Winamp to notify what's going on
- */
- virtual void Notify(WOutputFilterNotifyMsg msg, int data1, int data2) { }
-
-};
-
-
-
-
-class WInputSource
-{
-
- protected:
- /* WInputSource
- ** WInputSource constructor
- */
- WInputSource(){ };
-
-
- public:
- /* m_player
- ** Filled by Winamp. Pointer to Winamp 3 core interface
- */
- WPlayer_callback *m_player;
-
- /* GetDescription
- ** Retrieves your plug-in's text description
- */
- virtual char *GetDescription() { return "Unknown"; };
-
- /* UsesOutputFilters
- ** Returns whether or not the Output Filter pipeline can be used
- */
- virtual int UsesOutputFilters(void) { return 1; }
-
- /* Open
- ** Used to open and prepare input media type
- */
- virtual int Open(char *url, bool *killswitch)=0;
-
- /* GetSamples
- ** This function must fill bps, nch and srate.
- ** Here, you have to fill the sample_buffer with decoded data. Be sure to fill it with the specified
- ** size (bytes). Use an internal buffer, etc ...
- **
- ** sample_buffer: buffer to put decoded data into
- ** bytes: size of the sample_buffer
- ** bps: Bits par sample (8 or 16)
- ** nch: Number of channels (1 or 2)
- ** srate: Sample rate in Hz
- ** killswitch: Will be set to 1 by winamp if stop if requested. Poll the pointed value very often to
- ** make sure Winamp doesn't hang
- */
- virtual int GetSamples(char *sample_buffer, int bytes, int *bps, int *nch, int *srate, bool *killswitch)=0;
-
- /* SetVolume
- ** Sets the volume (0 to 255)
- ** Return 1 if volume has been set
- */
- virtual int SetVolume(int volume) { return 0; };
-
- /* SetPan
- ** Sets Left-Right sound balance (-127 to 127)
- ** return 1 if pan successfully modified
- */
- virtual int SetPan(int pan) { return 0; };
-
- /* SetPosition
- ** Sets position in ms. returns 0 on success, 1 if seek impossible
- */
- virtual int SetPosition(int)=0;
-
- /* Pause
- ** Suspends input
- */
- virtual void Pause(int pause) { };
-
- /* GetPosition
- ** Retrieve position in milliseconds
- */
- virtual int GetPosition(void) { return 0; }
-
- /* GetTitle
- ** Called by Winamp to get the decoded title about the file opened
- ** i.e. stream name, id3 title name, etc...
- */
- virtual void GetTitle(char *buf, int maxlen) { if(maxlen>0) buf[0]=0; };
-
- /* GetInfoString
- ** Called by Winamp to get extra informations about the file openend
- ** i.e. "32kbps 44khz", etc...
- */
- virtual void GetInfoString(char *buf, int maxlen) { if(maxlen>0) buf[0]=0; };
-
- /* GetLength
- ** Called by Winamp to retrieves media type length in milliseconds
- ** returns -1 if length is undefined/infinite
- */
- virtual int GetLength(void) { return -1; }
-
- /* ~WInputSource
- ** ~WInputSource virtual destructor
- */
- virtual ~WInputSource() { };
-};
-
-
-
-
-class WReader
-{
- protected:
-
- /* WReader
- ** WReader constructor
- */
- WReader() { }
-
- public:
-
- /* m_player
- ** Filled by Winamp. Pointer to Winamp 3 core interface
- */
- WPlayer_callback *m_player;
-
- /* GetDescription
- ** Retrieves your plug-in's text description
- */
- virtual char *GetDescription() { return "Unknown"; };
-
- /* Open
- ** Used to open a file, return 0 on success
- */
- virtual int Open(char *url, bool *killswitch)=0;
-
- /* Read
- ** Returns number of BYTES read (if < length then eof or killswitch)
- */
- virtual int Read(char *buffer, int length, bool *killswitch)=0;
-
- /* GetLength
- ** Returns length of the entire file in BYTES, return -1 on unknown/infinite (as for a stream)
- */
- virtual int GetLength(void)=0;
-
- /* CanSeek
- ** Returns 1 if you can skip ahead in the file, 0 if not
- */
- virtual int CanSeek(void)=0;
-
- /* Seek
- ** Jump to a certain absolute position
- */
- virtual int Seek(int position, bool *killswitch)=0;
-
- /* GetHeader
- ** Retrieve header. Used in read_http to retrieve the HTTP header
- */
- virtual char *GetHeader(char *name) { return 0; }
-
- /* ~WReader
- ** WReader virtual destructor
- */
- virtual ~WReader() { }
-};
-
-
-
-
-/* DLL PLUGINS EXPORT STRUCTURES */
-
-#define READ_VER 0x100
-#define IN_VER 0x100
-#define OF_VER 0x100
-
-
-typedef struct
-{
- /* version
- ** Version revision number
- */
- int version;
-
- /* description
- ** Text description of the reader plug-in
- */
- char *description;
-
- /* create
- ** Function pointer to create a reader module
- */
- WReader *(*create)();
-
- /* ismine
- ** Determines whether or not a file should be read by this plug-in
- */
- int (*ismine)(char *url);
-
-} reader_source;
-
-
-
-
-typedef struct
-{
- /* version
- ** Version revision number
- */
- int version;
-
- /* description
- ** Text description of the input plug-in
- */
- char *description;
-
- /* extension_list
- ** Defines all the supported filetypes by this input plug-in
- ** In semicolon delimited format ("ext;desc;ext;desc" etc).
- */
- char *extension_list;
-
- /* ismine
- ** called before extension checks, to allow detection of tone://,http://, etc
- ** Determines whether or not a file type should be decoded by this plug-in
- */
- int (*ismine)(char *filename);
-
- /* create
- ** Function pointer to create a decoder module
- */
- WInputSource *(*create)(void);
-
- /* createinfo
- ** Function pointer to create a decoder module information
- */
- WInputInfo *(*createinfo)(void);
-
-} input_source;
-
-
-
-typedef struct
-{
- /* version
- ** Version revision number
- */
- int version;
-
- /* description
- ** Text description of the output plug-in
- */
- char *description;
-
- /* create
- ** Function pointer to create an Output Filter
- */
- WOutputFilter *(*create)();
-
-} output_filter;
-
-
-#endif
+++ /dev/null
-/* in_flac - Winamp3 FLAC input plugin
- * Copyright (C) 2001 Josh Coalson
- *
- * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#include <windows.h>
-#include <stdio.h>
-#include "core_api.h"
-#include "FLAC/all.h"
-
-typedef struct {
- FLAC__byte raw[128];
- char title[31];
- char artist[31];
- char album[31];
- char comment[31];
- unsigned year;
- unsigned track; /* may be 0 if v1 (not v1.1) tag */
- unsigned genre;
- char description[1024]; /* the formatted description passed to xmms */
-} id3v1_struct;
-
-typedef struct {
- FLAC__bool abort_flag;
- FLAC__bool is_playing;
- FLAC__bool eof;
- unsigned total_samples;
- unsigned bits_per_sample;
- unsigned channels;
- unsigned sample_rate;
- unsigned length_in_msec;
-} file_info_struct;
-
-static FLAC__bool get_id3v1_tag_(const char *filename, id3v1_struct *tag);
-static FLAC__bool decoder_init_(const char *filename);
-static FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *buffer[], void *client_data);
-static void metadata_callback_(const FLAC__FileDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data);
-static void error_callback_(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data);
-
-static char plugin_description_[] = "Reference FLAC Player v" FLAC__VERSION_STRING;
-static HINSTANCE g_hDllInstance_;
-
-class FLAC_Info : public WInputInfo
-{
- private:
- id3v1_struct tag_;
- int length_in_msec_;
- public:
- FLAC_Info();
- ~FLAC_Info();
- int Open(char *url);
- void GetTitle(char *buf, int maxlen);
- void GetInfoString(char *buf, int maxlen);
- inline int GetLength(void) { return length_in_msec_; }
-};
-
-FLAC_Info::FLAC_Info() : WInputInfo()
-{
- length_in_msec_ = -1;
-}
-
-FLAC_Info::~FLAC_Info()
-{
-}
-
-int FLAC_Info::Open(char *url)
-{
- const char *filename = url; /* @@@ right now we only handle files */
-
- (void)get_id3v1_tag_(filename, &tag_);
-
- file_info_struct tmp_file_info;
- FLAC__FileDecoder *tmp_decoder = FLAC__file_decoder_new();
- if(0 == tmp_decoder) {
- length_in_msec_ = -1;
- return 1;
- }
- tmp_file_info.abort_flag = false;
- FLAC__file_decoder_set_md5_checking(tmp_decoder, false);
- FLAC__file_decoder_set_filename(tmp_decoder, filename);
- FLAC__file_decoder_set_write_callback(tmp_decoder, write_callback_);
- FLAC__file_decoder_set_metadata_callback(tmp_decoder, metadata_callback_);
- FLAC__file_decoder_set_error_callback(tmp_decoder, error_callback_);
- FLAC__file_decoder_set_client_data(tmp_decoder, &tmp_file_info);
- if(FLAC__file_decoder_init(tmp_decoder) != FLAC__FILE_DECODER_OK) {
- length_in_msec_ = -1;
- return 1;
- }
- if(!FLAC__file_decoder_process_metadata(tmp_decoder)) {
- length_in_msec_ = -1;
- return 1;
- }
-
- length_in_msec_ = (int)tmp_file_info.length_in_msec;
-
- if(FLAC__file_decoder_get_state(tmp_decoder) != FLAC__FILE_DECODER_UNINITIALIZED)
- FLAC__file_decoder_finish(tmp_decoder);
- FLAC__file_decoder_delete(tmp_decoder);
-
- return 0;
-}
-
-void FLAC_Info::GetTitle(char *buf, int maxlen)
-{
- strncpy(buf, title, maxlen-1);
- buf[maxlen-1] = 0;
-}
-
-void FLAC_Info::GetInfoString(char *buf, int maxlen)
-{
- strncpy(buf, description, maxlen-1);
- buf[maxlen-1] = 0;
-}
-
-
-class FLAC_Source : public WInputSource
-{
- private:
- id3v1_struct tag_;
- FLAC__FileDecoder *decoder_;
- FLAC__int16 reservoir_[FLAC__MAX_BLOCK_SIZE * 2 * 2]; /* *2 for max channels, another *2 for overflow */
- unsigned reservoir_samples_;
- file_info_struct file_info_;
- FLAC__bool audio_error_;
- public:
- FLAC_Source();
- ~FLAC_Source();
- inline char *GetDescription(void) { return plugin_description_; }
- inline int UsesOutputFilters(void) { return 1; }
- int Open(char *url, FLAC__bool *killswitch);
- int GetSamples(char *sample_buffer, int bytes, int *bps, int *nch, int *srate, FLAC__bool *killswitch);
- int SetPosition(int); // sets position in ms
- void GetTitle(char *buf, int maxlen);
- void GetInfoString(char *buf, int maxlen);
- inline int GetLength(void) { return (int)file_info_.length_in_msec; }
- void cleanup();
-};
-
-FLAC_Source::FLAC_Source() : WInputSource()
-{
- decoder_ = FLAC__file_decoder_new();
- file_info_.length_in_msec = -1;
- audio_error_ = false;
-}
-
-FLAC_Source::~FLAC_Source()
-{
- if(decoder_)
- FLAC__file_decoder_delete(decoder_);
-}
-
-void FLAC_Source::GetTitle(char *buf, int maxlen)
-{
- strncpy(buf, title, maxlen-1);
- buf[maxlen-1] = 0;
-}
-
-void FLAC_Source::GetInfoString(char *buf, int maxlen)
-{
- strncpy(buf, description, maxlen-1);
- buf[maxlen-1] = 0;
-}
-
-int FLAC_Source::Open(char *url, FLAC__bool *killswitch)
-{
- const char *filename = url; /* @@@ right now we only handle files */
-
- {
- FILE *f = fopen(filename, "r");
- if(0 == f)
- return 1;
- fclose(f);
- }
-
- (void)get_id3v1_tag_(filename, &tag);
-
- file_info_.length_in_msec = -1;
-
- if(!decoder_init_(filename))
- return 1;
-
- if(file_info_.abort_flag) {
- cleanup();
- return 1;
- }
-
- reservoir_samples_ = 0;
- audio_error_ = false;
- file_info_.is_playing = true;
- file_info_.eof = false;
-
- return 0;
-}
-
-int FLAC_Source::GetSamples(char *sample_buffer, int bytes, int *bps, int *nch, int *srate, FLAC__bool *killswitch)
-{
- int return_bytes = 0;
-
- *bps = (int)file_info_.bits_per_sample;
- *nch = (int)file_info_.channels;
- *srate = (int)file_info_.sample_rate;
-
- if(!file_info_.eof) {
- const unsigned channels = file_info_.channels;
- const unsigned bytes_per_sample = (file_info_.bits_per_sample+7) / 8;
- const unsigned wide_samples = bytes / channels / bytes_per_sample;
-if(bytes&0x3)fprintf(stderr,"@@@ Got odd buffer size request\n");
- while(reservoir_samples_ < wide_samples) {
- if(FLAC__file_decoder_get_state(decoder) == FLAC__FILE_DECODER_END_OF_FILE) {
- file_info_.eof = true;
- break;
- }
- else if(!FLAC__file_decoder_process_one_frame(decoder_))
- break;
- }
- if(reservoir_samples_ > 0) {
- unsigned i, n = min(reservoir_samples_, wide_samples), delta;
- FLAC__int16 output = (FLAC__int16*)sample_buffer;
-
- for(i = 0; i < n*channels; i++)
- output[i] = reservoir_[i];
- delta = i;
- for( ; i < reservoir_samples_*channels; i++)
- reservoir[i-delta] = reservoir[i];
- reservoir_samples_ -= n;
-
- return_bytes = (int)(n * bytes_per_sample * channels);
- }
- else {
- file_info_.eof = true;
- }
- }
- return return_bytes;
-}
-
-int FLAC_Source::SetPosition(int position)
-{
- const double distance = (double)position * 1000.0 / (double)file_info_.length_in_msec;
- unsigned target_sample = (unsigned)(distance * (double)file_info_.total_samples);
- if(FLAC__file_decoder_seek_absolute(decoder_, (FLAC__uint64)target_sample)) {
- file_info_.eof = false;
- reservoir_samples_ = 0;
- return 0;
- }
- else {
- return 1;
- }
-}
-
-void FLAC_Source::cleanup()
-{
- if(decoder_ && FLAC__file_decoder_get_state(decoder_) != FLAC__FILE_DECODER_UNINITIALIZED)
- FLAC__file_decoder_finish(decoder_);
-
- reservoir_samples_ = 0;
- audio_error_ = false;
- file_info_.is_playing = false;
- file_info_.eof = false;
- file_info_.length_in_msec = -1;
-}
-
-
-/***********************************************************************
- * local routines
- **********************************************************************/
-
-FLAC__bool get_id3v1_tag_(const char *filename, id3v1_struct *tag)
-{
- const char *temp;
- FILE *f = fopen(filename, "rb");
- memset(tag, 0, sizeof(id3v1_struct));
-
- /* set the title and description to the filename by default */
- temp = strrchr(filename, '/');
- if(!temp)
- temp = filename;
- else
- temp++;
- strcpy(tag->description, temp);
- *strrchr(tag->description, '.') = '\0';
- strncpy(tag->title, tag->description, 30); tag->title[30] = '\0';
-
- if(0 == f)
- return false;
- if(-1 == fseek(f, -128, SEEK_END)) {
- fclose(f);
- return false;
- }
- if(fread(tag->raw, 1, 128, f) < 128) {
- fclose(f);
- return false;
- }
- fclose(f);
- if(strncmp(tag->raw, "TAG", 3))
- return false;
- else {
- char year_str[5];
-
- memcpy(tag->title, tag->raw+3, 30);
- memcpy(tag->artist, tag->raw+33, 30);
- memcpy(tag->album, tag->raw+63, 30);
- memcpy(year_str, tag->raw+93, 4); year_str[4] = '\0'; tag->year = atoi(year_str);
- memcpy(tag->comment, tag->raw+97, 30);
- tag->genre = (unsigned)((FLAC__byte)tag->raw[127]);
- tag->track = (unsigned)((FLAC__byte)tag->raw[126]);
-
- sprintf(tag->description, "%s - %s", tag->artist, tag->title);
-
- return true;
- }
-}
-
-FLAC__bool decoder_init_(const char *filename)
-{
- if(decoder_ == 0)
- return false;
-
- FLAC__file_decoder_set_md5_checking(decoder, false);
- FLAC__file_decoder_set_filename(decoder, filename);
- FLAC__file_decoder_set_write_callback(decoder, write_callback_);
- FLAC__file_decoder_set_metadata_callback(decoder, metadata_callback_);
- FLAC__file_decoder_set_error_callback(decoder, error_callback_);
- FLAC__file_decoder_set_client_data(decoder, &file_info_);
- if(FLAC__file_decoder_init(decoder_) != FLAC__FILE_DECODER_OK)
- return false;
-
- file_info_.abort_flag = false;
-
- if(!FLAC__file_decoder_process_metadata(decoder_))
- return false;
-
- return true;
-}
-
-FLAC__StreamDecoderWriteStatus write_callback_(const FLAC__FileDecoder *decoder, const FLAC__Frame *frame, const FLAC__int32 *buffer[], void *client_data)
-{
- file_info_struct *file_info = (file_info_struct *)client_data;
- const unsigned bps = file_info->bits_per_sample, channels = file_info->channels, wide_samples = frame->header.blocksize;
- unsigned wide_sample, sample, channel;
-
- (void)decoder;
-
- if(file_info->abort_flag)
- return FLAC__STREAM_DECODER_WRITE_ABORT;
-
- FLAC__ASSERT(bps == 16);
-
- for(sample = reservoir_samples_*channels, wide_sample = 0; wide_sample < wide_samples; wide_sample++)
- for(channel = 0; channel < channels; channel++, sample++)
- reservoir_[sample] = (FLAC__int16)buffer[channel][wide_sample];
-
- reservoir_samples_ += wide_samples;
-
- return FLAC__STREAM_DECODER_WRITE_CONTINUE;
-}
-
-void metadata_callback_(const FLAC__FileDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data)
-{
- file_info_struct *file_info = (file_info_struct *)client_data;
- (void)decoder;
- if(metadata->type == FLAC__METADATA_TYPE_STREAMINFO) {
- FLAC__ASSERT(metadata->data.stream_info.total_samples < 0x100000000); /* this plugin can only handle < 4 gigasamples */
- file_info->total_samples = (unsigned)(metadata->data.stream_info.total_samples&0xffffffff);
- file_info->bits_per_sample = metadata->data.stream_info.bits_per_sample;
- file_info->channels = metadata->data.stream_info.channels;
- file_info->sample_rate = metadata->data.stream_info.sample_rate;
-
- if(file_info->bits_per_sample != 16) {
- file_info->abort_flag = true;
- return;
- }
- file_info->length_in_msec = file_info->total_samples * 10 / (file_info->sample_rate / 100);
- }
-}
-
-void error_callback_(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
-{
- file_info_struct *file_info = (file_info_struct *)client_data;
- (void)decoder;
- if(status != FLAC__STREAM_DECODER_ERROR_LOST_SYNC)
- file_info->abort_flag = true;
-}
-
-
-/***********************************************************************
- * C-level interface
- **********************************************************************/
-
-static int C_level__FLAC_is_mine_(char *filename)
-{
- return 0;
-}
-
-static WInputSource *C_level__FLAC_create_()
-{
- return new FLAC_Source();
-}
-
-static WInputInfo *C_level__FLAC_create_info_()
-{
- return new FLAC_Info();
-}
-
-input_source C_level__FLAC_source_ = {
- IN_VER,
- plugin_description_,
- "FLAC;FLAC Audio File (*.FLAC)",
- C_level__FLAC_is_mine_,
- C_level__FLAC_create_,
- C_level__FLAC_create_info_
-};
-
-extern "C"
-{
- __declspec (dllexport) int getInputSource(HINSTANCE hDllInstance, input_source **inStruct)
- {
- g_hDllInstance_ = hDllInstance;
- *inStruct = &C_level__FLAC_source_;
- return 1;
- }
-}
projects / platform / upstream / flac.git / commitdiff