diff options
Diffstat (limited to 'src/inputPlugins/ogg_plugin.c')
| -rw-r--r-- | src/inputPlugins/ogg_plugin.c | 364 |
1 files changed, 364 insertions, 0 deletions
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 |