From fd6aa253594e18877ca2380961c0425a7de21b2e Mon Sep 17 00:00:00 2001 From: Warren Dukes 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 +#endif +#ifdef HAVE_ID3TAG +#ifdef USE_MPD_ID3TAG +#include "../libid3tag/id3tag.h" +#else +#include +#endif +#endif +#include "../log.h" +#include "../utils.h" +#include "../tag.h" +#include "../path.h" + +#include +#include +#include +#include +#include +#include + +#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(ihighestFrame && dc->seekWhere > + ((float)mad_timer_count(data->times[i], + MAD_UNITS_MILLISECONDS))/1000) + { + i++; + } + if(ihighestFrame) { + 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 +#include +#include +#include +#include +#include + +#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 -- cgit v1.2.3