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flac_plugin

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git-svn-id: https://svn.musicpd.org/mpd/trunk@1246 09075e82-0dd4-0310-85a5-a0d7c8717e4f
This commit is contained in:
Warren Dukes
2004-05-31 01:54:10 +00:00
parent fd6aa25359
commit 30424cb3e9
7 changed files with 155 additions and 156 deletions
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580
src/inputPlugins/flac_plugin.c Normal file
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@@ -0,0 +1,580 @@
/* 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_FLAC
#include "../utils.h"
#include "../log.h"
#include "../pcm_utils.h"
#include "../inputStream.h"
#include "../outputBuffer.h"
#include "../replayGain.h"
#include "../audio.h"
#include "../path.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <FLAC/seekable_stream_decoder.h>
#include <FLAC/metadata.h>
typedef struct {
#define FLAC_CHUNK_SIZE 4080
unsigned char chunk[FLAC_CHUNK_SIZE];
int chunk_length;
float time;
int bitRate;
FLAC__uint64 position;
OutputBuffer * cb;
DecoderControl * dc;
InputStream inStream;
float replayGainScale;
} FlacData;
/* this code is based on flac123, from flac-tools */
int flacSendChunk(FlacData * data);
void flacError(const FLAC__SeekableStreamDecoder *,
FLAC__StreamDecoderErrorStatus, void *);
void flacPrintErroredState(FLAC__SeekableStreamDecoderState state, char * file);
void flacMetadata(const FLAC__SeekableStreamDecoder *,
const FLAC__StreamMetadata *, void *);
FLAC__StreamDecoderWriteStatus flacWrite(const FLAC__SeekableStreamDecoder *,
const FLAC__Frame *, const FLAC__int32 * const buf[], void *);
FLAC__SeekableStreamDecoderReadStatus flacRead(
const FLAC__SeekableStreamDecoder *, FLAC__byte buf[],
unsigned *, void *);
FLAC__SeekableStreamDecoderSeekStatus flacSeek(
const FLAC__SeekableStreamDecoder *, FLAC__uint64, void *);
FLAC__SeekableStreamDecoderTellStatus flacTell(
const FLAC__SeekableStreamDecoder *, FLAC__uint64 *, void *);
FLAC__SeekableStreamDecoderLengthStatus flacLength(
const FLAC__SeekableStreamDecoder *, FLAC__uint64 *, void *);
FLAC__bool flacEOF(const FLAC__SeekableStreamDecoder *, void *);
int flac_decode(OutputBuffer * cb, DecoderControl *dc) {
FLAC__SeekableStreamDecoder * flacDec;
FlacData data;
int status = 1;
data.chunk_length = 0;
data.time = 0;
data.position = 0;
data.bitRate = 0;
data.cb = cb;
data.dc = dc;
data.replayGainScale = 1.0;
if(openInputStream(&(data.inStream),dc->file)<0) {
ERROR("unable to open flac: %s\n",dc->file);
return -1;
}
if(!(flacDec = FLAC__seekable_stream_decoder_new())) return -1;
/*status&=FLAC__file_decoder_set_md5_checking(flacDec,1);*/
status&=FLAC__seekable_stream_decoder_set_read_callback(flacDec,
flacRead);
status&=FLAC__seekable_stream_decoder_set_seek_callback(flacDec,
flacSeek);
status&=FLAC__seekable_stream_decoder_set_tell_callback(flacDec,
flacTell);
status&=FLAC__seekable_stream_decoder_set_length_callback(flacDec,
flacLength);
status&=FLAC__seekable_stream_decoder_set_eof_callback(flacDec,flacEOF);
status&=FLAC__seekable_stream_decoder_set_write_callback(flacDec,
flacWrite);
status&=FLAC__seekable_stream_decoder_set_metadata_callback(flacDec,
flacMetadata);
status&=FLAC__seekable_stream_decoder_set_error_callback(flacDec,
flacError);
status&=FLAC__seekable_stream_decoder_set_client_data(flacDec,
(void *)&data);
if(!status) {
ERROR("flac problem before init(): %s\n",dc->file);
flacPrintErroredState(
FLAC__seekable_stream_decoder_get_state(flacDec),
dc->file);
FLAC__seekable_stream_decoder_delete(flacDec);
return -1;
}
if(FLAC__seekable_stream_decoder_init(flacDec)!=
FLAC__STREAM_DECODER_SEARCH_FOR_METADATA)
{
ERROR("flac problem doing init(): %s\n",dc->file);
flacPrintErroredState(
FLAC__seekable_stream_decoder_get_state(flacDec),
dc->file);
FLAC__seekable_stream_decoder_delete(flacDec);
return -1;
}
if(!FLAC__seekable_stream_decoder_process_until_end_of_metadata(flacDec)) {
ERROR("flac problem reading metadata: %s\n", dc->file);
flacPrintErroredState(
FLAC__seekable_stream_decoder_get_state(flacDec),
dc->file);
FLAC__seekable_stream_decoder_delete(flacDec);
return -1;
}
dc->state = DECODE_STATE_DECODE;
while(1) {
FLAC__seekable_stream_decoder_process_single(flacDec);
if(FLAC__seekable_stream_decoder_get_state(flacDec)!=
FLAC__SEEKABLE_STREAM_DECODER_OK)
{
break;
}
if(dc->seek) {
FLAC__uint64 sampleToSeek = dc->seekWhere*
dc->audioFormat.sampleRate+0.5;
if(FLAC__seekable_stream_decoder_seek_absolute(flacDec,
sampleToSeek))
{
clearOutputBuffer(cb);
data.time = ((float)sampleToSeek)/
dc->audioFormat.sampleRate;
data.position = 0;
}
else dc->seekError = 1;
dc->seek = 0;
}
}
/* I don't think we need this bit here! -shank */
/*FLAC__file_decoder_process_until_end_of_file(flacDec);*/
if(!dc->stop) {
flacPrintErroredState(
FLAC__seekable_stream_decoder_get_state(flacDec),
dc->file);
FLAC__seekable_stream_decoder_finish(flacDec);
}
FLAC__seekable_stream_decoder_delete(flacDec);
/* send last little bit */
if(data.chunk_length>0 && !dc->stop) {
flacSendChunk(&data);
flushOutputBuffer(data.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;
}
FLAC__SeekableStreamDecoderReadStatus flacRead(
const FLAC__SeekableStreamDecoder * flacDec, FLAC__byte buf[],
unsigned * bytes, void * fdata) {
FlacData * data = (FlacData *) fdata;
*bytes = readFromInputStream(&(data->inStream),(void *)buf,1,*bytes);
if(*bytes==0) return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_ERROR;
return FLAC__SEEKABLE_STREAM_DECODER_READ_STATUS_OK;
}
FLAC__SeekableStreamDecoderSeekStatus flacSeek(
const FLAC__SeekableStreamDecoder * flacDec,
FLAC__uint64 offset, void * fdata)
{
FlacData * data = (FlacData *) fdata;
if(seekInputStream(&(data->inStream),offset,SEEK_SET)<0) {
return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_ERROR;
}
return FLAC__SEEKABLE_STREAM_DECODER_SEEK_STATUS_OK;
}
FLAC__SeekableStreamDecoderTellStatus flacTell(
const FLAC__SeekableStreamDecoder * flacDec,
FLAC__uint64 * offset, void * fdata)
{
FlacData * data = (FlacData *) fdata;
*offset = data->inStream.offset;
return FLAC__SEEKABLE_STREAM_DECODER_TELL_STATUS_OK;
}
FLAC__SeekableStreamDecoderLengthStatus flacLength(
const FLAC__SeekableStreamDecoder * flacDec,
FLAC__uint64 * length, void * fdata)
{
FlacData * data = (FlacData *) fdata;
*length = data->inStream.size;
return FLAC__SEEKABLE_STREAM_DECODER_LENGTH_STATUS_OK;
}
FLAC__bool flacEOF(const FLAC__SeekableStreamDecoder * flacDec, void * fdata) {
FlacData * data = (FlacData *) fdata;
switch(inputStreamAtEOF(&(data->inStream))) {
case 1:
return true;
default:
return false;
}
}
void flacError(const FLAC__SeekableStreamDecoder *dec,
FLAC__StreamDecoderErrorStatus status, void *fdata)
{
FlacData * data = (FlacData *) fdata;
if(data->dc->stop) return;
switch(status) {
case FLAC__STREAM_DECODER_ERROR_STATUS_LOST_SYNC:
ERROR("flac lost sync: %s\n",data->dc->file);
break;
case FLAC__STREAM_DECODER_ERROR_STATUS_BAD_HEADER:
ERROR("bad header %s\n",data->dc->file);
break;
case FLAC__STREAM_DECODER_ERROR_STATUS_FRAME_CRC_MISMATCH:
ERROR("crc mismatch %s\n",data->dc->file);
break;
default:
ERROR("unknow flac error %s\n",data->dc->file);
}
}
void flacPrintErroredState(FLAC__SeekableStreamDecoderState state,
char * file)
{
switch(state) {
case FLAC__SEEKABLE_STREAM_DECODER_MEMORY_ALLOCATION_ERROR:
ERROR("flac allocation error\n");
break;
case FLAC__SEEKABLE_STREAM_DECODER_READ_ERROR:
ERROR("flac read error: %s\n",file);
break;
case FLAC__SEEKABLE_STREAM_DECODER_SEEK_ERROR:
ERROR("flac seek error: %s\n",file);
break;
case FLAC__SEEKABLE_STREAM_DECODER_STREAM_DECODER_ERROR:
ERROR("flac seekable stream error: %s\n",file);
break;
case FLAC__SEEKABLE_STREAM_DECODER_ALREADY_INITIALIZED:
ERROR("flac decoder already initilaized: %s\n",file);
break;
case FLAC__SEEKABLE_STREAM_DECODER_INVALID_CALLBACK:
ERROR("invalid flac callback\n");
break;
case FLAC__SEEKABLE_STREAM_DECODER_UNINITIALIZED:
ERROR("flac decoder uninitialized: %s\n",file);
break;
case FLAC__SEEKABLE_STREAM_DECODER_OK:
case FLAC__SEEKABLE_STREAM_DECODER_SEEKING:
case FLAC__SEEKABLE_STREAM_DECODER_END_OF_STREAM:
break;
}
}
int flacFindVorbisCommentFloat(const FLAC__StreamMetadata * block, char * cmnt,
float * fl)
{
int offset = FLAC__metadata_object_vorbiscomment_find_entry_from(
block,0,cmnt);
if(offset >= 0) {
int pos = strlen(cmnt)+1; /* 1 is for '=' */
int len = block->data.vorbis_comment.comments[offset].length
-pos;
if(len > 0) {
char * dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
*fl = atof(dup);
free(dup);
return 1;
}
}
return 0;
}
/* replaygain stuff by AliasMrJones */
void flacParseReplayGain(const FLAC__StreamMetadata *block, FlacData * data) {
int found;
float gain = 0.0;
float peak = 0.0;
int state = getReplayGainState();
if(state == REPLAYGAIN_OFF) return;
found = flacFindVorbisCommentFloat(block,"replaygain_album_gain",&gain);
if(found) {
flacFindVorbisCommentFloat(block,"replaygain_album_peak",
&peak);
}
if(!found || state == REPLAYGAIN_TRACK) {
if(flacFindVorbisCommentFloat(block,"replaygain_track_gain",
&gain))
{
peak = 0.0;
flacFindVorbisCommentFloat(block,
"replaygain_track_peak",&peak);
}
}
data->replayGainScale = computeReplayGainScale(gain,peak);
}
void flacMetadata(const FLAC__SeekableStreamDecoder *dec,
const FLAC__StreamMetadata *block, void *vdata)
{
FlacData * data = (FlacData *)vdata;
switch(block->type) {
case FLAC__METADATA_TYPE_STREAMINFO:
data->dc->audioFormat.bits =
block->data.stream_info.bits_per_sample;
data->dc->audioFormat.sampleRate =
block->data.stream_info.sample_rate;
data->dc->audioFormat.channels =
block->data.stream_info.channels;
data->dc->totalTime =
((float)block->data.stream_info.total_samples)/
data->dc->audioFormat.sampleRate;
getOutputAudioFormat(&(data->dc->audioFormat),
&(data->cb->audioFormat));
break;
case FLAC__METADATA_TYPE_VORBIS_COMMENT:
flacParseReplayGain(block,data);
default:
break;
}
}
int flacSendChunk(FlacData * data) {
doReplayGain(data->chunk,data->chunk_length,&(data->dc->audioFormat),
data->replayGainScale);
switch(sendDataToOutputBuffer(data->cb, NULL, data->dc, 1, data->chunk,
data->chunk_length, data->time, data->bitRate))
{
case OUTPUT_BUFFER_DC_STOP:
return -1;
default:
return 0;
}
return 0;
}
FLAC__StreamDecoderWriteStatus flacWrite(const FLAC__SeekableStreamDecoder *dec,
const FLAC__Frame *frame, const FLAC__int32 * const buf[],
void * vdata)
{
FlacData * data = (FlacData *)vdata;
FLAC__uint32 samples = frame->header.blocksize;
FLAC__uint16 u16;
unsigned char * uc;
int c_samp, c_chan, d_samp;
int i;
float timeChange;
FLAC__uint64 newPosition = 0;
timeChange = ((float)samples)/frame->header.sample_rate;
data->time+= timeChange;
FLAC__seekable_stream_decoder_get_decode_position(dec,&newPosition);
if(data->position) {
data->bitRate = ((newPosition-data->position)*8.0/timeChange)
/1000+0.5;
}
data->position = newPosition;
for(c_samp = d_samp = 0; c_samp < frame->header.blocksize; c_samp++) {
for(c_chan = 0; c_chan < frame->header.channels;
c_chan++, d_samp++) {
u16 = buf[c_chan][c_samp];
uc = (unsigned char *)&u16;
for(i=0;i<(data->dc->audioFormat.bits/8);i++) {
if(data->chunk_length>=FLAC_CHUNK_SIZE) {
if(flacSendChunk(data)<0) {
return FLAC__STREAM_DECODER_WRITE_STATUS_ABORT;
}
data->chunk_length = 0;
if(data->dc->seek) {
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
}
data->chunk[data->chunk_length++] = *(uc++);
}
}
}
return FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
}
MpdTag * flacMetadataDup(char * utf8file, int * vorbisCommentFound) {
MpdTag * ret = NULL;
FLAC__Metadata_SimpleIterator * it;
FLAC__StreamMetadata * block = NULL;
int offset;
int len, pos;
*vorbisCommentFound = 0;
it = FLAC__metadata_simple_iterator_new();
if(!FLAC__metadata_simple_iterator_init(it,rmp2amp(utf8ToFsCharset(utf8file)),1,0)) {
FLAC__metadata_simple_iterator_delete(it);
return ret;
}
do {
block = FLAC__metadata_simple_iterator_get_block(it);
if(!block) break;
if(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT) {
char * dup;
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"artist");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("artist=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
stripReturnChar(dup);
ret->artist = dup;
}
}
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"album");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("album=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
stripReturnChar(dup);
ret->album = dup;
}
}
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"title");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("title=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
stripReturnChar(dup);
ret->title = dup;
}
}
offset = FLAC__metadata_object_vorbiscomment_find_entry_from(block,0,"tracknumber");
if(offset>=0) {
*vorbisCommentFound = 1;
if(!ret) ret = newMpdTag();
pos = strlen("tracknumber=");
len = block->data.vorbis_comment.comments[offset].length-pos;
if(len>0) {
dup = malloc(len+1);
memcpy(dup,&(block->data.vorbis_comment.comments[offset].entry[pos]),len);
dup[len] = '\0';
stripReturnChar(dup);
ret->track = dup;
}
}
}
else if(block->type == FLAC__METADATA_TYPE_STREAMINFO) {
if(!ret) ret = newMpdTag();
ret->time = ((float)block->data.stream_info.
total_samples) /
block->data.stream_info.sample_rate +
0.5;
}
FLAC__metadata_object_delete(block);
} while(FLAC__metadata_simple_iterator_next(it));
FLAC__metadata_simple_iterator_delete(it);
return ret;
}
MpdTag * flacTagDup(char * utf8file) {
MpdTag * ret = NULL;
int foundVorbisComment = 0;
ret = flacMetadataDup(utf8file,&foundVorbisComment);
if(!ret) return NULL;
if(!foundVorbisComment) {
MpdTag * temp = id3Dup(utf8file);
if(temp) {
temp->time = ret->time;
freeMpdTag(ret);
ret = temp;
}
}
if(ret) validateUtf8Tag(ret);
return ret;
}
char * flacSuffixes[] = {"flac", NULL};
InputPlugin flacPlugin =
{
"flac",
NULL,
flac_decode,
flacTagDup,
INPUT_PLUGIN_STREAM_FILE,
flacSuffixes,
NULL
};
#else
InputPlugin flacPlugin =
{
NULL,
NULL,
NULL,
NULL,
0,
NULL,
NULL,
};
#endif
/* vim:set shiftwidth=8 tabstop=8 expandtab: */

1
src/inputPlugins/mp3_plugin.c
View File

@@ -651,6 +651,7 @@ InputPlugin mp3Plugin =
NULL,
NULL,
NULL,
NULL,
0,
NULL,
NULL

1
src/inputPlugins/ogg_plugin.c
View File

@@ -353,6 +353,7 @@ InputPlugin oggPlugin =
InputPlugin oggPlugin =
{
NULL,
NULL,
NULL,
NULL,