From fd6aa253594e18877ca2380961c0425a7de21b2e Mon Sep 17 00:00:00 2001
From: Warren Dukes <warren.dukes@gmail.com>
Date: Mon, 31 May 2004 01:21:17 +0000
Subject: mp3 and ogg plugin stuff
git-svn-id: https://svn.musicpd.org/mpd/trunk@1245 09075e82-0dd4-0310-85a5-a0d7c8717e4f
---
src/inputPlugins/mp3_plugin.c | 659 ++++++++++++++++++++++++++++++++++++++++++
src/inputPlugins/ogg_plugin.c | 364 +++++++++++++++++++++++
2 files changed, 1023 insertions(+)
create mode 100644 src/inputPlugins/mp3_plugin.c
create mode 100644 src/inputPlugins/ogg_plugin.c
(limited to 'src/inputPlugins')
diff --git a/src/inputPlugins/mp3_plugin.c b/src/inputPlugins/mp3_plugin.c
new file mode 100644
index 000000000..5d34a1068
--- /dev/null
+++ b/src/inputPlugins/mp3_plugin.c
@@ -0,0 +1,659 @@
+/* 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 "../inputPlugin.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 "../log.h"
+#include "../utils.h"
+#include "../tag.h"
+#include "../path.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)
+{
+ initMp3DecodeData(data, inStream);
+ 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) {
+ mp3DecodeData data;
+
+ if(openMp3FromInputStream(inStream, &data, dc) < 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;
+}
+
+MpdTag * mp3_tagDup(char * utf8file) {
+ MpdTag * ret = NULL;
+ int time;
+
+ ret = id3Dup(utf8file);
+
+ time = getMp3TotalTime(rmp2amp(utf8ToFsCharset(utf8file)));
+
+ if(time>=0) {
+ if(!ret) ret = newMpdTag();
+ ret->time = time;
+ }
+
+ if(ret) validateUtf8Tag(ret);
+
+ return ret;
+}
+
+char * mp3_suffixes[] = {"mp3", NULL};
+char * mp3_mimeTypes[] = {"audio/mpeg", NULL};
+
+InputPlugin mp3Plugin =
+{
+ "mp3",
+ mp3_decode,
+ NULL,
+ mp3_tagDup,
+ INPUT_PLUGIN_STREAM_FILE | INPUT_PLUGIN_STREAM_URL,
+ mp3_suffixes,
+ mp3_mimeTypes
+};
+#else
+
+InputPlugin mp3Plugin =
+{
+ NULL,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL
+};
+
+#endif
diff --git a/src/inputPlugins/ogg_plugin.c b/src/inputPlugins/ogg_plugin.c
new file mode 100644
index 000000000..af617378e
--- /dev/null
+++ b/src/inputPlugins/ogg_plugin.c
@@ -0,0 +1,364 @@
+/* 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 "../inputPlugin.h"
+
+#ifdef HAVE_OGG
+
+#include "../command.h"
+#include "../utils.h"
+#include "../audio.h"
+#include "../log.h"
+#include "../pcm_utils.h"
+#include "../inputStream.h"
+#include "../outputBuffer.h"
+#include "../replayGain.h"
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <vorbis/vorbisfile.h>
+#include <errno.h>
+
+#ifdef WORDS_BIGENDIAN
+#define OGG_DECODE_USE_BIGENDIAN 1
+#else
+#define OGG_DECODE_USE_BIGENDIAN 0
+#endif
+
+typedef struct _OggCallbackData {
+ InputStream * inStream;
+ DecoderControl * dc;
+} OggCallbackData;
+
+/* this is just for tag parsing for db import! */
+int getOggTotalTime(char * file) {
+ OggVorbis_File vf;
+ FILE * oggfp;
+ int totalTime;
+
+ if(!(oggfp = fopen(file,"r"))) return -1;
+
+ if(ov_open(oggfp, &vf, NULL, 0) < 0) {
+ fclose(oggfp);
+ return -1;
+ }
+
+ totalTime = ov_time_total(&vf,-1)+0.5;
+
+ ov_clear(&vf);
+
+ return totalTime;
+}
+
+size_t ogg_read_cb(void * ptr, size_t size, size_t nmemb, void * vdata)
+{
+ size_t ret = 0;
+ OggCallbackData * data = (OggCallbackData *)vdata;
+
+ while(1) {
+ ret = readFromInputStream(data->inStream,ptr,size,nmemb);
+ if(ret == 0 && !inputStreamAtEOF(data->inStream) &&
+ !data->dc->stop)
+ {
+ my_usleep(10000);
+ }
+ else break;
+ }
+ errno = 0;
+ /*if(ret<0) errno = ((InputStream *)inStream)->error;*/
+
+ return ret;
+}
+
+int ogg_seek_cb(void * vdata, ogg_int64_t offset, int whence) {
+ OggCallbackData * data = (OggCallbackData *)vdata;
+
+ return seekInputStream(data->inStream,offset,whence);
+}
+
+int ogg_close_cb(void * vdata) {
+ OggCallbackData * data = (OggCallbackData *)vdata;
+
+ return closeInputStream(data->inStream);
+}
+
+long ogg_tell_cb(void * vdata) {
+ OggCallbackData * data = (OggCallbackData *)vdata;
+
+ return (long)(data->inStream->offset);
+}
+
+char * ogg_parseComment(char * comment, char * needle) {
+ int len = strlen(needle);
+
+ if(strncasecmp(comment,needle,len)) return comment+len;
+
+ return NULL;
+}
+
+float ogg_getReplayGainScale(char ** comments) {
+ int trackGainFound = 0;
+ int albumGainFound = 0;
+ float trackGain = 1.0;
+ float albumGain = 1.0;
+ float trackPeak = 0.0;
+ float albumPeak = 0.0;
+ char * temp;
+ int replayGainState = getReplayGainState();
+
+ if(replayGainState == REPLAYGAIN_OFF) return 1.0;
+
+ while(*comments) {
+ if((temp = ogg_parseComment(*comments,"replaygain_track_gain")))
+ {
+ trackGain = atof(temp);
+ trackGainFound = 1;
+ }
+ else if((temp = ogg_parseComment(*comments,
+ "replaygain_album_gain")))
+ {
+ albumGain = atof(temp);
+ albumGainFound = 1;
+ }
+ else if((temp = ogg_parseComment(*comments,
+ "replaygain_track_peak")))
+ {
+ trackPeak = atof(temp);
+ }
+ else if((temp = ogg_parseComment(*comments,
+ "replaygain_album_peak")))
+ {
+ albumPeak = atof(temp);
+ }
+
+ comments++;
+ }
+
+ switch(replayGainState) {
+ case REPLAYGAIN_ALBUM:
+ if(albumGainFound) {
+ return computeReplayGainScale(albumGain,albumPeak);
+ }
+ default:
+ return computeReplayGainScale(trackGain,trackPeak);
+ }
+
+ return 1.0;
+}
+
+int ogg_decode(OutputBuffer * cb, DecoderControl * dc, InputStream * inStream)
+{
+ OggVorbis_File vf;
+ ov_callbacks callbacks;
+ OggCallbackData data;
+
+ data.inStream = inStream;
+ data.dc = dc;
+
+ callbacks.read_func = ogg_read_cb;
+ callbacks.seek_func = ogg_seek_cb;
+ callbacks.close_func = ogg_close_cb;
+ callbacks.tell_func = ogg_tell_cb;
+
+ if(ov_open_callbacks(&data, &vf, NULL, 0, callbacks) < 0) {
+ closeInputStream(inStream);
+ if(!dc->stop) {
+ ERROR("Input does not appear to be an Ogg Vorbis stream.\n");
+ return -1;
+ }
+ else {
+ dc->state = DECODE_STATE_STOP;
+ dc->stop = 0;
+ }
+ return 0;
+ }
+
+ {
+ vorbis_info *vi=ov_info(&vf,-1);
+ dc->audioFormat.bits = 16;
+ dc->audioFormat.channels = vi->channels;
+ dc->audioFormat.sampleRate = vi->rate;
+ getOutputAudioFormat(&(dc->audioFormat),&(cb->audioFormat));
+ }
+
+ dc->totalTime = ov_time_total(&vf,-1);
+ if(dc->totalTime < 0) dc->totalTime = 0;
+ dc->state = DECODE_STATE_DECODE;
+
+ {
+ int current_section;
+ int eof = 0;
+ long ret;
+#define OGG_CHUNK_SIZE 4096
+ char chunk[OGG_CHUNK_SIZE];
+ int chunkpos = 0;
+ long bitRate = 0;
+ long test;
+ float replayGainScale = ogg_getReplayGainScale(
+ ov_comment(&vf,-1)->user_comments);
+
+ while(!eof) {
+ if(dc->seek) {
+ if(0 == ov_time_seek_page(&vf,dc->seekWhere)) {
+ clearOutputBuffer(cb);
+ chunkpos = 0;
+ }
+ else dc->seekError = 1;
+ dc->seek = 0;
+ }
+ ret = ov_read(&vf, chunk+chunkpos,
+ OGG_CHUNK_SIZE-chunkpos,
+ OGG_DECODE_USE_BIGENDIAN,
+ 2, 1, ¤t_section);
+
+ if(ret <= 0 && ret != OV_HOLE) {
+ eof = 1;
+ break;
+ }
+ if(ret == OV_HOLE) ret = 0;
+
+ chunkpos+=ret;
+
+ if(chunkpos >= OGG_CHUNK_SIZE) {
+ if((test = ov_bitrate_instant(&vf))>0) {
+ bitRate = test/1000;
+ }
+ doReplayGain(chunk,ret,&(dc->audioFormat),
+ replayGainScale);
+ sendDataToOutputBuffer(cb, inStream, dc,
+ inStream->seekable, chunk, chunkpos,
+ ov_time_tell(&vf), bitRate);
+ if(dc->stop) break;
+ chunkpos = 0;
+ }
+ }
+
+ if(!dc->stop && chunkpos > 0) {
+ sendDataToOutputBuffer(cb, NULL, dc, inStream->seekable, chunk, chunkpos,
+ ov_time_tell(&vf), bitRate);
+ }
+
+ ov_clear(&vf);
+
+ flushOutputBuffer(cb);
+
+ /*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;
+}
+
+MpdTag * oggTagDup(char * utf8file) {
+ MpdTag * ret = NULL;
+ FILE * fp;
+ OggVorbis_File vf;
+ char ** comments;
+ char * temp;
+ char * s1;
+ char * s2;
+
+ fp = fopen(rmp2amp(utf8ToFsCharset(utf8file)),"r");
+ if(!fp) return NULL;
+ if(ov_open(fp,&vf,NULL,0)<0) {
+ fclose(fp);
+ return NULL;
+ }
+
+ ret = newMpdTag();
+ ret->time = (int)(ov_time_total(&vf,-1)+0.5);
+
+ comments = ov_comment(&vf,-1)->user_comments;
+
+ while(*comments) {
+ temp = strdup(*comments);
+ ++comments;
+ if(!(s1 = strtok(temp,"="))) continue;
+ s2 = strtok(NULL,"");
+ if(!s1 || !s2);
+ else if(0==strcasecmp(s1,"artist")) {
+ if(!ret->artist) {
+ stripReturnChar(s2);
+ ret->artist = strdup(s2);
+ }
+ }
+ else if(0==strcasecmp(s1,"title")) {
+ if(!ret->title) {
+ stripReturnChar(s2);
+ ret->title = strdup(s2);
+ }
+ }
+ else if(0==strcasecmp(s1,"album")) {
+ if(!ret->album) {
+ stripReturnChar(s2);
+ ret->album = strdup(s2);
+ }
+ }
+ else if(0==strcasecmp(s1,"tracknumber")) {
+ if(!ret->track) {
+ stripReturnChar(s2);
+ ret->track = strdup(s2);
+ }
+ }
+ free(temp);
+ }
+
+ ov_clear(&vf);
+
+ if(ret) validateUtf8Tag(ret);
+
+ return ret;
+}
+
+char * oggSuffixes[] = {"ogg", NULL};
+char * oggMimeTypes[] = {"application/ogg", NULL};
+
+InputPlugin oggPlugin =
+{
+ "ogg",
+ ogg_decode,
+ NULL,
+ oggTagDup,
+ INPUT_PLUGIN_STREAM_URL | INPUT_PLUGIN_STREAM_FILE,
+ oggSuffixes,
+ oggMimeTypes
+};
+
+#else
+
+InputPlugin oggPlugin =
+{
+ NULL,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL
+};
+
+#endif
--
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