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/* the Music Player Daemon (MPD)
* Copyright (C) 2003-2007 by Warren Dukes (warren.dukes@gmail.com)
* Copyright (C) 2008 Max Kellermann <max@duempel.org>
* 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 "decoder_internal.h"
#include "audio.h"
#include "utils.h"
#include "normalize.h"
#include "playerData.h"
#include "gcc.h"
void decoder_initialized(struct decoder * decoder,
const AudioFormat * audio_format,
float total_time)
{
assert(dc.state == DECODE_STATE_START);
memset(&decoder->conv_state, 0, sizeof(decoder->conv_state));
if (audio_format != NULL) {
dc.audioFormat = *audio_format;
getOutputAudioFormat(audio_format,
&(ob.audioFormat));
}
dc.totalTime = total_time;
dc.state = DECODE_STATE_DECODE;
notify_signal(&pc.notify);
}
enum decoder_command decoder_get_command(mpd_unused struct decoder * decoder)
{
return dc.command;
}
void decoder_command_finished(mpd_unused struct decoder * decoder)
{
assert(dc.command != DECODE_COMMAND_NONE);
dc.command = DECODE_COMMAND_NONE;
notify_signal(&pc.notify);
}
/**
* All chunks are full of decoded data; wait for the player to free
* one.
*/
static int need_chunks(struct decoder *decoder, InputStream * inStream,
int seekable)
{
if (dc.command == DECODE_COMMAND_STOP)
return OUTPUT_BUFFER_DC_STOP;
if (dc.command == DECODE_COMMAND_SEEK) {
if (seekable) {
return OUTPUT_BUFFER_DC_SEEK;
} else {
dc.seekError = 1;
decoder_command_finished(decoder);
}
}
if (!inStream ||
bufferInputStream(inStream) <= 0) {
notify_wait(&dc.notify);
notify_signal(&pc.notify);
}
return 0;
}
int decoder_data(struct decoder *decoder, InputStream * inStream,
int seekable,
void *dataIn, size_t dataInLen,
float data_time, mpd_uint16 bitRate,
ReplayGainInfo * replayGainInfo)
{
size_t nbytes;
char *data;
size_t datalen;
static char *convBuffer;
static size_t convBufferLen;
int ret;
if (cmpAudioFormat(&(ob.audioFormat), &(dc.audioFormat)) == 0) {
data = dataIn;
datalen = dataInLen;
} else {
datalen = pcm_sizeOfConvBuffer(&(dc.audioFormat), dataInLen,
&(ob.audioFormat));
if (datalen > convBufferLen) {
if (convBuffer != NULL)
free(convBuffer);
convBuffer = xmalloc(datalen);
convBufferLen = datalen;
}
data = convBuffer;
datalen = pcm_convertAudioFormat(&(dc.audioFormat), dataIn,
dataInLen, &(ob.audioFormat),
data, &decoder->conv_state);
}
if (replayGainInfo != NULL && (replayGainState != REPLAYGAIN_OFF))
doReplayGain(replayGainInfo, data, datalen, &ob.audioFormat);
else if (normalizationEnabled)
normalizeData(data, datalen, &ob.audioFormat);
while (datalen > 0) {
nbytes = ob_append(data, datalen, data_time, bitRate);
datalen -= nbytes;
data += nbytes;
if (datalen > 0) {
ret = need_chunks(decoder, inStream, seekable);
if (ret != 0)
return ret;
}
}
return 0;
}
void decoder_flush(mpd_unused struct decoder *decoder)
{
ob_flush();
}
void decoder_clear(mpd_unused struct decoder *decoder)
{
ob_clear();
}
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