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This commit is contained in:
Josh Coalson
2000-12-10 04:09:52 +00:00
commit bb7f6b99d0
63 changed files with 12744 additions and 0 deletions
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23
src/plugin_winamp2/Makefile.vc Normal file
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!include <win32.mak>
!IFNDEF NODEBUG
.c.obj:
$(cc) /GX $(cdebug) $(cflags) $(cvarsdll) /I "..\..\include" /I ".\include" -DSTRICT -YX /Od /D "_DEBUG" $<
!else
.c.obj:
$(cc) $(cdebug) $(cflags) $(cvarsdll) /I "..\..\include" /I ".\include" -DSTRICT -YX -DNODEBUG $<
!endif
C_FILES= \
in_flac.c
OBJS= $(C_FILES:.c=.obj)
all: in_flac.dll
in_flac.dll: $(OBJS)
link.exe /dll /libpath:"..\..\obj\lib" -out:../../obj/bin/$*.dll $(OBJS) libFLAC.lib user32.lib kernel32.lib
clean:
-del *.obj *.pch
-del ..\..\obj\bin\in_flac.*

104
src/plugin_winamp2/in2.h Normal file
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/* Standard Winamp input-plugin header
*/
#include "out.h"
// note: exported symbol is now winampGetInModule2.
#define IN_VER 0x100
typedef struct
{
int version; // module type (IN_VER)
char *description; // description of module, with version string
HWND hMainWindow; // winamp's main window (filled in by winamp)
HINSTANCE hDllInstance; // DLL instance handle (Also filled in by winamp)
char *FileExtensions; // "mp3\0Layer 3 MPEG\0mp2\0Layer 2 MPEG\0mpg\0Layer 1 MPEG\0"
// May be altered from Config, so the user can select what they want
int is_seekable; // is this stream seekable?
int UsesOutputPlug; // does this plug-in use the output plug-ins? (musn't ever change, ever :)
void (*Config)(HWND hwndParent); // configuration dialog
void (*About)(HWND hwndParent); // about dialog
void (*Init)(); // called at program init
void (*Quit)(); // called at program quit
void (*GetFileInfo)(char *file, char *title, int *length_in_ms); // if file == NULL, current playing is used
int (*InfoBox)(char *file, HWND hwndParent);
int (*IsOurFile)(char *fn); // called before extension checks, to allow detection of mms://, etc
// playback stuff
int (*Play)(char *fn); // return zero on success, -1 on file-not-found, some other value on other (stopping winamp) error
void (*Pause)(); // pause stream
void (*UnPause)(); // unpause stream
int (*IsPaused)(); // ispaused? return 1 if paused, 0 if not
void (*Stop)(); // stop (unload) stream
// time stuff
int (*GetLength)(); // get length in ms
int (*GetOutputTime)(); // returns current output time in ms. (usually returns outMod->GetOutputTime()
void (*SetOutputTime)(int time_in_ms); // seeks to point in stream (in ms). Usually you signal yoru thread to seek, which seeks and calls outMod->Flush()..
// volume stuff
void (*SetVolume)(int volume); // from 0 to 255.. usually just call outMod->SetVolume
void (*SetPan)(int pan); // from -127 to 127.. usually just call outMod->SetPan
// in-window builtin vis stuff
void (*SAVSAInit)(int maxlatency_in_ms, int srate); // call once in Play(). maxlatency_in_ms should be the value returned from outMod->Open()
// call after opening audio device with max latency in ms and samplerate
void (*SAVSADeInit)(); // call in Stop()
// simple vis supplying mode
void (*SAAddPCMData)(void *PCMData, int nch, int bps, int timestamp);
// sets the spec data directly from PCM data
// quick and easy way to get vis working :)
// needs at least 576 samples :)
// advanced vis supplying mode, only use if you're cool. Use SAAddPCMData for most stuff.
int (*SAGetMode)(); // gets csa (the current type (4=ws,2=osc,1=spec))
// use when calling SAAdd()
void (*SAAdd)(void *data, int timestamp, int csa); // sets the spec data, filled in by winamp
// vis stuff (plug-in)
// simple vis supplying mode
void (*VSAAddPCMData)(void *PCMData, int nch, int bps, int timestamp); // sets the vis data directly from PCM data
// quick and easy way to get vis working :)
// needs at least 576 samples :)
// advanced vis supplying mode, only use if you're cool. Use VSAAddPCMData for most stuff.
int (*VSAGetMode)(int *specNch, int *waveNch); // use to figure out what to give to VSAAdd
void (*VSAAdd)(void *data, int timestamp); // filled in by winamp, called by plug-in
// call this in Play() to tell the vis plug-ins the current output params.
void (*VSASetInfo)(int nch, int srate);
// dsp plug-in processing:
// (filled in by winamp, called by input plug)
// returns 1 if active (which means that the number of samples returned by dsp_dosamples
// could be greater than went in.. Use it to estimate if you'll have enough room in the
// output buffer
int (*dsp_isactive)();
// returns number of samples to output. This can be as much as twice numsamples.
// be sure to allocate enough buffer for samples, then.
int (*dsp_dosamples)(short int *samples, int numsamples, int bps, int nch, int srate);
// eq stuff
void (*EQSet)(int on, char data[10], int preamp); // 0-64 each, 31 is +0, 0 is +12, 63 is -12. Do nothing to ignore.
// info setting (filled in by winamp)
void (*SetInfo)(int bitrate, int srate, int stereo, int synched); // if -1, changes ignored? :)
Out_Module *outMod; // filled in by winamp, optionally used :)
} In_Module;

425
src/plugin_winamp2/in_flac.c Normal file
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/* in_flac - Winamp FLAC input plugin
* Copyright (C) 2000 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 <mmreg.h>
#include <msacm.h>
#include <math.h>
#include <assert.h>
#include "in2.h"
#include "FLAC/all.h"
BOOL WINAPI _DllMainCRTStartup(HANDLE hInst, ULONG ul_reason_for_call, LPVOID lpReserved)
{
return TRUE;
}
/* post this to the main window at end of file (after playback as stopped) */
#define WM_WA_MPEG_EOF WM_USER+2
typedef struct {
bool abort_flag;
unsigned total_samples;
unsigned bits_per_sample;
unsigned channels;
unsigned sample_rate;
unsigned length_in_ms;
} stream_info_struct;
static bool stream_init(const char *infile);
static FLAC__StreamDecoderWriteStatus write_callback(const FLAC__FileDecoder *decoder, const FLAC__FrameHeader *header, const 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);
In_Module mod; /* the output module (declared near the bottom of this file) */
char lastfn[MAX_PATH]; /* currently playing file (used for getting info on the current file) */
int decode_pos_ms; /* current decoding position, in milliseconds */
int paused; /* are we paused? */
int seek_needed; /* if != -1, it is the point that the decode thread should seek to, in ms. */
int16 reservoir[FLAC__MAX_BLOCK_SIZE * 2]; /* 2 for max channels */
char sample_buffer[576 * 2 * (16/8) * 2]; /* 2 for max channels, (16/8) for max bytes per sample, and 2 for who knows what */
unsigned samples_in_reservoir;
static stream_info_struct stream_info;
static FLAC__FileDecoder *decoder;
int killDecodeThread=0; /* the kill switch for the decode thread */
HANDLE thread_handle=INVALID_HANDLE_VALUE; /* the handle to the decode thread */
DWORD WINAPI __stdcall DecodeThread(void *b); /* the decode thread procedure */
void config(HWND hwndParent)
{
MessageBox(hwndParent, "No configuration.", "Configuration", MB_OK);
/* if we had a configuration we'd want to write it here :) */
}
void about(HWND hwndParent)
{
MessageBox(hwndParent,"Winamp FLAC Plugin v0.2, by Josh Coalson\nSee http://flac.sourceforge.net/","About FLAC Plugin",MB_OK);
}
void init()
{
decoder = FLAC__file_decoder_get_new_instance();
}
void quit()
{
if(decoder)
FLAC__file_decoder_free_instance(decoder);
}
int isourfile(char *fn) { return 0; }
/* used for detecting URL streams.. unused here. strncmp(fn,"http://",7) to detect HTTP streams, etc */
int play(char *fn)
{
int maxlatency;
int thread_id;
HANDLE input_file=INVALID_HANDLE_VALUE;
if(0 == decoder) {
return 1;
}
input_file = CreateFile(fn,GENERIC_READ,FILE_SHARE_READ|FILE_SHARE_WRITE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL);
if (input_file == INVALID_HANDLE_VALUE) {
return 1;
}
CloseHandle(input_file);
if(!stream_init(fn)) {
return 1;
}
strcpy(lastfn,fn);
paused=0;
decode_pos_ms=0;
seek_needed=-1;
samples_in_reservoir = 0;
maxlatency = mod.outMod->Open(stream_info.sample_rate, stream_info.channels, stream_info.bits_per_sample, -1,-1);
if (maxlatency < 0) { /* error opening device */
return 1;
}
/* dividing by 1000 for the first parameter of setinfo makes it */
/* display 'H'... for hundred.. i.e. 14H Kbps. */
mod.SetInfo((stream_info.sample_rate*stream_info.bits_per_sample*stream_info.channels)/1000,stream_info.sample_rate/1000,stream_info.channels,1);
/* initialize vis stuff */
mod.SAVSAInit(maxlatency,stream_info.sample_rate);
mod.VSASetInfo(stream_info.sample_rate,stream_info.channels);
mod.outMod->SetVolume(-666); /* set the output plug-ins default volume */
killDecodeThread=0;
thread_handle = (HANDLE) CreateThread(NULL,0,(LPTHREAD_START_ROUTINE) DecodeThread,(void *) &killDecodeThread,0,&thread_id);
return 0;
}
void pause()
{
paused=1;
mod.outMod->Pause(1);
}
void unpause()
{
paused=0;
mod.outMod->Pause(0);
}
int ispaused()
{
return paused;
}
void stop()
{
if (thread_handle != INVALID_HANDLE_VALUE) {
killDecodeThread=1;
if (WaitForSingleObject(thread_handle,INFINITE) == WAIT_TIMEOUT) {
MessageBox(mod.hMainWindow,"error asking thread to die!\n","error killing decode thread",0);
TerminateThread(thread_handle,0);
}
CloseHandle(thread_handle);
thread_handle = INVALID_HANDLE_VALUE;
}
if(decoder) {
if(decoder->state != FLAC__FILE_DECODER_UNINITIALIZED)
FLAC__file_decoder_finish(decoder);
}
mod.outMod->Close();
mod.SAVSADeInit();
}
int getlength()
{
return (int)stream_info.length_in_ms;
}
int getoutputtime()
{
return decode_pos_ms+(mod.outMod->GetOutputTime()-mod.outMod->GetWrittenTime());
}
void setoutputtime(int time_in_ms)
{
seek_needed=time_in_ms;
}
void setvolume(int volume) { mod.outMod->SetVolume(volume); }
void setpan(int pan) { mod.outMod->SetPan(pan); }
int infoDlg(char *fn, HWND hwnd)
{
/* TODO: implement info dialog. */
return 0;
}
void getfileinfo(char *filename, char *title, int *length_in_ms)
{
if (!filename || !*filename) { /* currently playing file */
if (length_in_ms)
*length_in_ms=getlength();
if (title) {
char *p=lastfn+strlen(lastfn);
while (*p != '\\' && p >= lastfn) p--;
strcpy(title,++p);
}
}
else { /* some other file */
if (length_in_ms) {
FLAC__FileDecoder *tmp_decoder = FLAC__file_decoder_get_new_instance();
stream_info_struct tmp_stream_info;
tmp_stream_info.abort_flag = false;
if(FLAC__file_decoder_init(tmp_decoder, filename, write_callback, metadata_callback, error_callback, &tmp_stream_info) != FLAC__FILE_DECODER_OK)
return;
if(!FLAC__file_decoder_process_metadata(tmp_decoder))
return;
*length_in_ms = (int)tmp_stream_info.length_in_ms;
if(tmp_decoder->state != FLAC__FILE_DECODER_UNINITIALIZED)
FLAC__file_decoder_finish(tmp_decoder);
FLAC__file_decoder_free_instance(tmp_decoder);
}
if (title) {
char *p=filename+strlen(filename);
while (*p != '\\' && p >= filename) p--;
strcpy(title,++p);
}
}
}
void eq_set(int on, char data[10], int preamp)
{
}
DWORD WINAPI __stdcall DecodeThread(void *b)
{
int done=0;
while (! *((int *)b) ) {
unsigned channels = stream_info.channels;
unsigned bits_per_sample = stream_info.bits_per_sample;
unsigned bytes_per_sample = (bits_per_sample+7)/8;
unsigned sample_rate = stream_info.sample_rate;
if (seek_needed != -1) {
const double distance = (double)seek_needed / (double)getlength();
unsigned target_sample = (unsigned)(distance * (double)stream_info.total_samples);
if(FLAC__file_decoder_seek_absolute(decoder, (uint64)target_sample)) {
decode_pos_ms = (int)(distance * (double)getlength());
seek_needed=-1;
done=0;
mod.outMod->Flush(decode_pos_ms);
}
}
if (done) {
if (!mod.outMod->IsPlaying()) {
PostMessage(mod.hMainWindow,WM_WA_MPEG_EOF,0,0);
return 0;
}
Sleep(10);
}
else if (mod.outMod->CanWrite() >= ((int)(576*channels*bytes_per_sample) << (mod.dsp_isactive()?1:0))) {
while(samples_in_reservoir < 576) {
if(decoder->state == FLAC__FILE_DECODER_END_OF_FILE) {
done = 1;
break;
}
else if(!FLAC__file_decoder_process_one_frame(decoder))
break;
}
if (samples_in_reservoir == 0) {
done=1;
}
else {
unsigned i, n = min(samples_in_reservoir, 576), delta;
int l;
signed short *ssbuffer = (signed short *)sample_buffer;
for(i = 0; i < n*channels; i++)
ssbuffer[i] = reservoir[i];
delta = i;
for( ; i < samples_in_reservoir*channels; i++)
reservoir[i-delta] = reservoir[i];
samples_in_reservoir -= n;
l = n * channels * bytes_per_sample;
mod.SAAddPCMData((char *)sample_buffer,channels,bits_per_sample,decode_pos_ms);
mod.VSAAddPCMData((char *)sample_buffer,channels,bits_per_sample,decode_pos_ms);
decode_pos_ms+=(576*1000)/sample_rate;
if (mod.dsp_isactive())
l=mod.dsp_dosamples((short *)sample_buffer,n/channels/bytes_per_sample,bits_per_sample,channels,sample_rate) * (channels*bytes_per_sample);
mod.outMod->Write(sample_buffer,l);
}
}
else Sleep(20);
}
return 0;
}
In_Module mod =
{
IN_VER,
"Reference FLAC Player v0.0"
#ifdef __alpha
"(AXP)"
#else
"(x86)"
#endif
,
0, /* hMainWindow */
0, /* hDllInstance */
"FLAC\0FLAC Audio File (*.FLAC)\0"
,
1, /* is_seekable */
1, /* uses output */
config,
about,
init,
quit,
getfileinfo,
infoDlg,
isourfile,
play,
pause,
unpause,
ispaused,
stop,
getlength,
getoutputtime,
setoutputtime,
setvolume,
setpan,
0,0,0,0,0,0,0,0,0, /* vis stuff */
0,0, /* dsp */
eq_set,
NULL, /* setinfo */
0 /* out_mod */
};
__declspec( dllexport ) In_Module * winampGetInModule2()
{
return &mod;
}
/***********************************************************************
* local routines
**********************************************************************/
bool stream_init(const char *infile)
{
if(FLAC__file_decoder_init(decoder, infile, write_callback, metadata_callback, error_callback, &stream_info) != FLAC__FILE_DECODER_OK) {
MessageBox(mod.hMainWindow,"ERROR initializing decoder, state = %d\n","ERROR initializing decoder",0);
return false;
}
stream_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__FrameHeader *header, const int32 *buffer[], void *client_data)
{
stream_info_struct *stream_info = (stream_info_struct *)client_data;
unsigned bps = stream_info->bits_per_sample, channels = stream_info->channels;
unsigned wide_samples = header->blocksize, wide_sample, sample, channel, offset;
(void)decoder;
if(stream_info->abort_flag)
return FLAC__STREAM_DECODER_WRITE_ABORT;
offset = samples_in_reservoir * channels;
for(sample = wide_sample = 0; wide_sample < wide_samples; wide_sample++)
for(channel = 0; channel < channels; channel++, sample++)
reservoir[offset+sample] = (int16)buffer[channel][wide_sample];
samples_in_reservoir += wide_samples;
return FLAC__STREAM_DECODER_WRITE_CONTINUE;
}
void metadata_callback(const FLAC__FileDecoder *decoder, const FLAC__StreamMetaData *metadata, void *client_data)
{
stream_info_struct *stream_info = (stream_info_struct *)client_data;
(void)decoder;
if(metadata->type == FLAC__METADATA_TYPE_ENCODING) {
assert(metadata->data.encoding.total_samples < 0x100000000); /* this plugin can only handle < 4 gigasamples */
stream_info->total_samples = (unsigned)(metadata->data.encoding.total_samples&0xffffffff);
stream_info->bits_per_sample = metadata->data.encoding.bits_per_sample;
stream_info->channels = metadata->data.encoding.channels;
stream_info->sample_rate = metadata->data.encoding.sample_rate;
if(stream_info->bits_per_sample != 16) {
MessageBox(mod.hMainWindow,"ERROR: plugin can only handle 16-bit samples\n","ERROR: plugin can only handle 16-bit samples",0);
stream_info->abort_flag = true;
return;
}
stream_info->length_in_ms = stream_info->total_samples * 10 / (stream_info->sample_rate / 100);
}
}
void error_callback(const FLAC__FileDecoder *decoder, FLAC__StreamDecoderErrorStatus status, void *client_data)
{
stream_info_struct *stream_info = (stream_info_struct *)client_data;
(void)decoder;
if(status != FLAC__STREAM_DECODER_ERROR_LOST_SYNC)
stream_info->abort_flag = true;
}

55
src/plugin_winamp2/out.h Normal file
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/* Standard Winamp output-plugin header
*/
#define OUT_VER 0x10
typedef struct
{
int version; // module version (OUT_VER)
char *description; // description of module, with version string
int id; // module id. each input module gets its own. non-nullsoft modules should
// be >= 65536.
HWND hMainWindow; // winamp's main window (filled in by winamp)
HINSTANCE hDllInstance; // DLL instance handle (filled in by winamp)
void (*Config)(HWND hwndParent); // configuration dialog
void (*About)(HWND hwndParent); // about dialog
void (*Init)(); // called when loaded
void (*Quit)(); // called when unloaded
int (*Open)(int samplerate, int numchannels, int bitspersamp, int bufferlenms, int prebufferms);
// returns >=0 on success, <0 on failure
// NOTENOTENOTE: bufferlenms and prebufferms are ignored in most if not all output plug-ins.
// ... so don't expect the max latency returned to be what you asked for.
// returns max latency in ms (0 for diskwriters, etc)
// bufferlenms and prebufferms must be in ms. 0 to use defaults.
// prebufferms must be <= bufferlenms
void (*Close)(); // close the ol' output device.
int (*Write)(char *buf, int len);
// 0 on success. Len == bytes to write (<= 8192 always). buf is straight audio data.
// 1 returns not able to write (yet). Non-blocking, always.
int (*CanWrite)(); // returns number of bytes possible to write at a given time.
// Never will decrease unless you call Write (or Close, heh)
int (*IsPlaying)(); // non0 if output is still going or if data in buffers waiting to be
// written (i.e. closing while IsPlaying() returns 1 would truncate the song
int (*Pause)(int pause); // returns previous pause state
void (*SetVolume)(int volume); // volume is 0-255
void (*SetPan)(int pan); // pan is -128 to 128
void (*Flush)(int t); // flushes buffers and restarts output at time t (in ms)
// (used for seeking)
int (*GetOutputTime)(); // returns played time in MS
int (*GetWrittenTime)(); // returns time written in MS (used for synching up vis stuff)
} Out_Module;