mp3 and ogg plugin stuff

git-svn-id: https://svn.musicpd.org/mpd/trunk@1245 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 0 insertions, 620 deletions

diff --git a/src/mp3_decode.c b/src/mp3_decode.c
deleted file mode 100644
index 467a656df..000000000
--- a/src/mp3_decode.c
+++ /dev/null
@@ -1,620 +0,0 @@
-/* the Music Player Daemon (MPD)
- * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
- * This project's homepage is: http://www.musicpd.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 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 "mp3_decode.h"
-
-#ifdef HAVE_MAD
-
-#include "pcm_utils.h"
-#ifdef USE_MPD_MAD
-#include "libmad/mad.h"
-#else
-#include <mad.h>
-#endif
-#ifdef HAVE_ID3TAG
-#ifdef USE_MPD_ID3TAG
-#include "libid3tag/id3tag.h"
-#else
-#include <id3tag.h>
-#endif
-#endif
-#include "playerData.h"
-#include "log.h"
-#include "utils.h"
-#include "inputStream.h"
-#include "outputBuffer.h"
-
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-
-#define FRAMES_CUSHION		2000
-
-#define READ_BUFFER_SIZE	40960
-
-#define DECODE_SKIP		-3
-#define DECODE_BREAK		-2
-#define DECODE_CONT		-1
-#define DECODE_OK		0
-
-#define MUTEFRAME_SKIP          1
-#define MUTEFRAME_SEEK          2
-
-/* this is stolen from mpg321! */
-struct audio_dither {
-	mad_fixed_t error[3];
-	mad_fixed_t random;
-};
-
-unsigned long prng(unsigned long state) {
-	return (state * 0x0019660dL + 0x3c6ef35fL) & 0xffffffffL;
-}
-
-signed long audio_linear_dither(unsigned int bits, mad_fixed_t sample, struct audio_dither *dither) {
-	unsigned int scalebits;
-	mad_fixed_t output, mask, random;
-
-	enum {
-		MIN = -MAD_F_ONE,
-		MAX =  MAD_F_ONE - 1
-	};
-
-	sample += dither->error[0] - dither->error[1] + dither->error[2];
-
-	dither->error[2] = dither->error[1];
-	dither->error[1] = dither->error[0] / 2;
-
-	output = sample + (1L << (MAD_F_FRACBITS + 1 - bits - 1));
-
-	scalebits = MAD_F_FRACBITS + 1 - bits;
-	mask = (1L << scalebits) - 1;
-
-	random  = prng(dither->random);
-	output += (random & mask) - (dither->random & mask);
-
-	dither->random = random;
-
-	if (output > MAX) {
-		output = MAX;
-
-		if (sample > MAX)
-			sample = MAX;
-	}
-	else if (output < MIN) {
-	        output = MIN;
-
-		if (sample < MIN)
-			sample = MIN;
-	}
-
-	output &= ~mask;
-
-	dither->error[0] = sample - output;
-
-	return output >> scalebits;
-}
-/* end of stolen stuff from mpg321 */
-
-/* decoder stuff is based on madlld */
-
-#define MP3_DATA_OUTPUT_BUFFER_SIZE 4096
-
-typedef struct _mp3DecodeData {
-	struct mad_stream stream;
-	struct mad_frame frame;
-	struct mad_synth synth;
-	mad_timer_t timer;
-	unsigned char readBuffer[READ_BUFFER_SIZE];
-	char outputBuffer[MP3_DATA_OUTPUT_BUFFER_SIZE];
-	char * outputPtr;
-	char * outputBufferEnd;
-	float totalTime;
-	float elapsedTime;
-	int muteFrame;
-	long * frameOffset;
-	mad_timer_t * times;
-	long highestFrame;
-	long maxFrames;
-	long currentFrame;
-	int flush;
-	unsigned long bitRate;
-	InputStream * inStream;
-} mp3DecodeData;
-
-void initMp3DecodeData(mp3DecodeData * data, InputStream * inStream) {
-	data->outputPtr = data->outputBuffer;
-	data->outputBufferEnd = data->outputBuffer+MP3_DATA_OUTPUT_BUFFER_SIZE;
-	data->muteFrame = 0;
-	data->highestFrame = 0;
-	data->maxFrames = 0;
-	data->frameOffset = NULL;
-	data->times = NULL;
-	data->currentFrame = 0;
-	data->flush = 1;
-        data->inStream = inStream;
-
-	mad_stream_init(&data->stream);
-	mad_frame_init(&data->frame);
-	mad_synth_init(&data->synth);
-	mad_timer_reset(&data->timer);
-}
-
-int seekMp3InputBuffer(mp3DecodeData * data, long offset) {
-	if(seekInputStream(data->inStream,offset,SEEK_SET) < 0) {
-                return -1;
-        }
-
-	mad_stream_buffer(&data->stream,data->readBuffer,0);
-	(data->stream).error = 0;
-
-	return 0;
-}
-
-int fillMp3InputBuffer(mp3DecodeData * data) {
-	size_t readSize;
-	size_t remaining;
-        size_t readed;
-	unsigned char * readStart;
-
-	if((data->stream).next_frame!=NULL) {
-		remaining = (data->stream).bufend-(data->stream).next_frame;
-		memmove(data->readBuffer,(data->stream).next_frame,remaining);
-		readStart = (data->readBuffer)+remaining;
-		readSize = READ_BUFFER_SIZE-remaining;
-	}
-	else {
-		readSize = READ_BUFFER_SIZE;
-		readStart = data->readBuffer,
-		remaining = 0;
-	}
-
-	readed = readFromInputStream(data->inStream, readStart, (size_t)1, 
-			readSize);
-	if(readed <= 0 && inputStreamAtEOF(data->inStream)) return -1;
-	/* sleep for a fraction of a second! */
-	else if(readed <= 0) my_usleep(10000);
-
-	mad_stream_buffer(&data->stream,data->readBuffer,readed+remaining);
-	(data->stream).error = 0;
-
-	return 0;
-}
-
-int decodeNextFrameHeader(mp3DecodeData * data) {
-	if((data->stream).buffer==NULL || (data->stream).error==MAD_ERROR_BUFLEN) {
-		if(fillMp3InputBuffer(data) < 0) {
-			return DECODE_BREAK;
-		}
-	}
-	if(mad_header_decode(&data->frame.header,&data->stream)) {
-#ifdef HAVE_ID3TAG
-		if((data->stream).error==MAD_ERROR_LOSTSYNC && 
-				(data->stream).this_frame) 
-		{
-			signed long tagsize = id3_tag_query(
-					(data->stream).this_frame,
-					(data->stream).bufend-
-					(data->stream).this_frame);
-			if(tagsize>0) {
-				mad_stream_skip(&(data->stream),tagsize);
-				return DECODE_CONT;
-			}
-		}
-#endif
-		if(MAD_RECOVERABLE((data->stream).error)) {
-			return DECODE_SKIP;
-		}
-		else {
-			if((data->stream).error==MAD_ERROR_BUFLEN) return DECODE_CONT;
-			else
-			{
-				ERROR("unrecoverable frame level error "
-					"(%s).\n",
-					mad_stream_errorstr(&data->stream));
-				data->flush = 0;
-				return DECODE_BREAK;
-			}
-		}
-	}
-
-	return DECODE_OK;
-}
-
-int decodeNextFrame(mp3DecodeData * data) {
-	if((data->stream).buffer==NULL || (data->stream).error==MAD_ERROR_BUFLEN) {
-		if(fillMp3InputBuffer(data) < 0) {
-			return DECODE_BREAK;
-		}
-	}
-	if(mad_frame_decode(&data->frame,&data->stream)) {
-#ifdef HAVE_ID3TAG
-		if((data->stream).error==MAD_ERROR_LOSTSYNC) {
-			signed long tagsize = id3_tag_query(
-					(data->stream).this_frame,
-					(data->stream).bufend-
-					(data->stream).this_frame);
-			if(tagsize>0) {
-				mad_stream_skip(&(data->stream),tagsize);
-				return DECODE_CONT;
-			}
-		}
-#endif
-		if(MAD_RECOVERABLE((data->stream).error)) {
-			return DECODE_SKIP;
-		}
-		else {
-			if((data->stream).error==MAD_ERROR_BUFLEN) return DECODE_CONT;
-			else
-			{
-				ERROR("unrecoverable frame level error "
-					"(%s).\n",
-					mad_stream_errorstr(&data->stream));
-				data->flush = 0;
-				return DECODE_BREAK;
-			}
-		}
-	}
-
-	return DECODE_OK;
-}
-
-/* xing stuff stolen from alsaplayer */
-# define XING_MAGIC	(('X' << 24) | ('i' << 16) | ('n' << 8) | 'g')
-
-struct xing {
-  	long flags;			/* valid fields (see below) */
-  	unsigned long frames;		/* total number of frames */
-  	unsigned long bytes;		/* total number of bytes */
-  	unsigned char toc[100];	/* 100-point seek table */
-  	long scale;			/* ?? */
-};
-
-enum {
-  	XING_FRAMES = 0x00000001L,
-  	XING_BYTES  = 0x00000002L,
-  	XING_TOC    = 0x00000004L,
-  	XING_SCALE  = 0x00000008L
-};
-
-int parse_xing(struct xing *xing, struct mad_bitptr ptr, unsigned int bitlen)
-{
-  	if (bitlen < 64 || mad_bit_read(&ptr, 32) != XING_MAGIC) goto fail;
-
-  	xing->flags = mad_bit_read(&ptr, 32);
-  	bitlen -= 64;
-
-  	if (xing->flags & XING_FRAMES) {
-    		if (bitlen < 32) goto fail;
-    		xing->frames = mad_bit_read(&ptr, 32);
-    		bitlen -= 32;
-  	}
-
-  	if (xing->flags & XING_BYTES) {
-    		if (bitlen < 32) goto fail;
-    		xing->bytes = mad_bit_read(&ptr, 32);
-    		bitlen -= 32;
-  	}
-
-  	if (xing->flags & XING_TOC) {
-    		int i;
-    		if (bitlen < 800) goto fail;
-      		for (i = 0; i < 100; ++i) xing->toc[i] = mad_bit_read(&ptr, 8);
-    		bitlen -= 800;
-  	}
-
-  	if (xing->flags & XING_SCALE) {
-    		if (bitlen < 32) goto fail;
-    		xing->scale = mad_bit_read(&ptr, 32);
-    		bitlen -= 32;
-  	}
-
- 	 return 1;
-
-fail:
-  	xing->flags = 0;
-  	return 0;
-}
-
-int decodeFirstFrame(mp3DecodeData * data, DecoderControl * dc) {
-	struct xing xing;
-	int ret;
-	int skip;
-
-	memset(&xing,0,sizeof(struct xing));
-	xing.flags = 0;
-
-	while(1) {
-		skip = 0;
-		while((ret = decodeNextFrameHeader(data))==DECODE_CONT && 
-				(!dc || !dc->stop));
-		if(ret==DECODE_SKIP) skip = 1;
-		else if(ret==DECODE_BREAK || (dc && dc->stop)) return -1;
-		while((ret = decodeNextFrame(data))==DECODE_CONT && 
-				(!dc || !dc->stop));
-		if(ret==DECODE_BREAK || (dc && dc->stop)) return -1;
-		if(!skip && ret==DECODE_OK) break;
-	}
-
-	if(parse_xing(&xing,data->stream.anc_ptr,data->stream.anc_bitlen)) {
-		if(xing.flags & XING_FRAMES) {
-			mad_timer_t duration = data->frame.header.duration;
-			mad_timer_multiply(&duration,xing.frames);
-			data->muteFrame = MUTEFRAME_SKIP;
-			data->totalTime = ((float)mad_timer_count(duration,
-						MAD_UNITS_MILLISECONDS))/1000;
-			data->maxFrames = xing.frames;
-		}
-	}
-	else {
-		size_t offset = data->inStream->offset;
-		mad_timer_t duration = data->frame.header.duration;
-		float frameTime = ((float)mad_timer_count(duration,
-					MAD_UNITS_MILLISECONDS))/1000;
-		if(data->stream.this_frame!=NULL) {
-			offset-= data->stream.bufend-data->stream.this_frame;
-		}
-		else {
-			offset-= data->stream.bufend-data->stream.buffer;
-		}
-		if(data->inStream->size >= offset) {
-			data->totalTime = ((data->inStream->size-offset)*8.0)/
-					(data->frame).header.bitrate;
-			data->maxFrames = 
-				data->totalTime/frameTime+FRAMES_CUSHION;
-		}
-		else {
-			data->maxFrames = FRAMES_CUSHION;
-			data->totalTime = 0;
-		}
-	}
-
-	data->frameOffset = malloc(sizeof(long)*data->maxFrames);
-	data->times = malloc(sizeof(mad_timer_t)*data->maxFrames);
-
-	return 0;
-}
-
-void mp3DecodeDataFinalize(mp3DecodeData * data) {
-	mad_synth_finish(&data->synth);
-	mad_frame_finish(&data->frame);
-	mad_stream_finish(&data->stream);
-
-	closeInputStream(data->inStream);
-	if(data->frameOffset) free(data->frameOffset);
-	if(data->times) free(data->times);
-}
-
-/* this is primarily used for getting total time for tags */
-int getMp3TotalTime(char * file) {
-        InputStream inStream;
-	mp3DecodeData data;
-	int ret;
-
-        if(openInputStream(&inStream, file) < 0) return -1;
-	initMp3DecodeData(&data,&inStream);
-        data.stream.options |= MAD_OPTION_IGNORECRC;
-	if(decodeFirstFrame(&data, NULL)<0) ret = -1;
-	else ret = data.totalTime+0.5;
-	mp3DecodeDataFinalize(&data);
-
-	return ret;
-}
-
-int openMp3FromInputStream(InputStream * inStream, mp3DecodeData * data,
-		DecoderControl * dc, int ignoreCrc) 
-{
-	initMp3DecodeData(data, inStream);
-        if(ignoreCrc) data->stream.options |= MAD_OPTION_IGNORECRC;
-	if(decodeFirstFrame(data, dc)<0) {
-		mp3DecodeDataFinalize(data);
-		return -1;
-	}
-
-	return 0;
-}
-
-int mp3Read(mp3DecodeData * data, OutputBuffer * cb, DecoderControl * dc) {
-	int i;
-	int ret;
-	struct audio_dither dither;
-	int skip;
-
-	if(data->currentFrame>=data->highestFrame) { 
-		mad_timer_add(&data->timer,(data->frame).header.duration);
-		data->bitRate = (data->frame).header.bitrate;
-		if(data->currentFrame>=data->maxFrames) {
-			data->currentFrame = data->maxFrames - 1;
-		}
-		else data->highestFrame++;
-		data->frameOffset[data->currentFrame] = data->inStream->offset;
-		if(data->stream.this_frame!=NULL) {
-			data->frameOffset[data->currentFrame]-= 
-					data->stream.bufend-
-					data->stream.this_frame;
-		}
-		else {
-			data->frameOffset[data->currentFrame]-= 
-					data->stream.bufend-data->stream.buffer;
-		}
-		data->times[data->currentFrame] = data->timer;
-	}
-	else data->timer = data->times[data->currentFrame];
-	data->currentFrame++;
-	data->elapsedTime = ((float)mad_timer_count(data->timer,MAD_UNITS_MILLISECONDS))/1000;
-
-	switch(data->muteFrame) {
-        case MUTEFRAME_SKIP:
-		data->muteFrame = 0;
-                break;
-        case MUTEFRAME_SEEK:
-		if(dc->seekWhere<=data->elapsedTime) {
-                        data->outputPtr = data->outputBuffer;
-                        clearOutputBuffer(cb);
-			data->muteFrame = 0;
-			dc->seek = 0;
-		}
-                break;
-        default:
-		mad_synth_frame(&data->synth,&data->frame);
-
-		for(i=0;i<(data->synth).pcm.length;i++) {
-			mpd_sint16 * sample;
-
-			sample = (mpd_sint16 *)data->outputPtr;	
-			*sample = (mpd_sint16) audio_linear_dither(16,
-					(data->synth).pcm.samples[0][i],
-					&dither);
-			data->outputPtr+=2;
-
-			if(MAD_NCHANNELS(&(data->frame).header)==2) {
-				sample = (mpd_sint16 *)data->outputPtr;	
-				*sample = (mpd_sint16) audio_linear_dither(16,
-						(data->synth).pcm.samples[1][i],
-						&dither);
-				data->outputPtr+=2;
-			}
-
-			if(data->outputPtr==data->outputBufferEnd) {
-                                long ret;
-                                ret = sendDataToOutputBuffer(cb,
-                                                data->inStream,
-                                                dc,
-                                                data->inStream->seekable,
-                                                data->outputBuffer,
-                                                MP3_DATA_OUTPUT_BUFFER_SIZE,
-                                                data->elapsedTime,
-                                                data->bitRate/1000);
-                                if(ret == OUTPUT_BUFFER_DC_STOP) {
-                                        return DECODE_BREAK;
-                                }
-
-                                data->outputPtr = data->outputBuffer;
-
-                                if(ret == OUTPUT_BUFFER_DC_SEEK) break;
-			}
-		}
-
-		if(dc->seek && data->inStream->seekable) {
-			long i = 0;
-			data->muteFrame = MUTEFRAME_SEEK;
-			while(i<data->highestFrame && dc->seekWhere >
-					((float)mad_timer_count(data->times[i],
-					MAD_UNITS_MILLISECONDS))/1000) 
-			{
-				i++;
-			}
-			if(i<data->highestFrame) {
-				if(seekMp3InputBuffer(data,
-						data->frameOffset[i]) == 0)
-                                {
-                                        data->outputPtr = data->outputBuffer;
-                                        clearOutputBuffer(cb);
-				        data->currentFrame = i;
-                                }
-                                else dc->seekError = 1;
-				data->muteFrame = 0;
-				dc->seek = 0;
-			}
-		}
-                else if(dc->seek && !data->inStream->seekable) {
-                        dc->seek = 0;
-                        dc->seekError = 1;
-                }
-	}
-
-	while(1) {
-		skip = 0;
-		while((ret = decodeNextFrameHeader(data))==DECODE_CONT &&
-				!dc->stop && !dc->seek);
-		if(ret==DECODE_BREAK || dc->stop || dc->seek) break;
-		else if(ret==DECODE_SKIP) skip = 1;
-		if(!data->muteFrame) {
-			while((ret = decodeNextFrame(data))==DECODE_CONT &&
-					!dc->stop && !dc->seek);
-			if(ret==DECODE_BREAK || dc->stop || dc->seek) break;
-		}
-		if(!skip && ret==DECODE_OK) break;
-	}
-
-	if(dc->stop) return DECODE_BREAK;
-
-	return ret;
-}
-
-void initAudioFormatFromMp3DecodeData(mp3DecodeData * data, AudioFormat * af) {
-	af->bits = 16;
-	af->sampleRate = (data->frame).header.samplerate;
-	af->channels = MAD_NCHANNELS(&(data->frame).header);
-}
-
-int mp3_decode(OutputBuffer * cb, DecoderControl * dc, InputStream * inStream,
-                int ignoreCrc) 
-{
-	mp3DecodeData data;
-
-	if(openMp3FromInputStream(inStream, &data, dc, ignoreCrc) < 0) {
-                closeInputStream(inStream);
-		if(!dc->stop) {
-                        ERROR("Input does not appear to be a mp3 bit stream.\n");
-		        return -1;
-                }
-                else {
-                        dc->state = DECODE_STATE_STOP;
-                        dc->stop = 0;
-                }
-                return 0;
-	}
-
-	initAudioFormatFromMp3DecodeData(&data, &(dc->audioFormat));
-        getOutputAudioFormat(&(dc->audioFormat), &(cb->audioFormat));
-        
-	dc->totalTime = data.totalTime;
-	dc->state = DECODE_STATE_DECODE;
-
-	while(mp3Read(&data,cb,dc)!=DECODE_BREAK);
-	/* send last little bit if not dc->stop */
-	if(data.outputPtr!=data.outputBuffer && data.flush)  {
-        	sendDataToOutputBuffer(cb, NULL, dc, 
-                                data.inStream->seekable,
-                                data.outputBuffer,
-                                data.outputPtr-data.outputBuffer,
-                                data.elapsedTime,data.bitRate/1000);
-	}
-
-	flushOutputBuffer(cb);
-	mp3DecodeDataFinalize(&data);
-
-	/*if(dc->seek) {
-                dc->seekError = 1;
-                dc->seek = 0;
-        }*/
-
-	if(dc->stop) {
-		dc->state = DECODE_STATE_STOP;
-		dc->stop = 0;
-	}
-	else dc->state = DECODE_STATE_STOP;
-		
-	return 0;
-}
-
-#endif
-/* vim:set shiftwidth=8 tabstop=8 expandtab: */