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-rw-r--r--src/inputPlugins/ogg_plugin.c364
1 files changed, 364 insertions, 0 deletions
diff --git a/src/inputPlugins/ogg_plugin.c b/src/inputPlugins/ogg_plugin.c
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+++ b/src/inputPlugins/ogg_plugin.c
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+/* 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, &current_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