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/*
* Copyright 2003-2018 The Music Player Daemon Project
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "FlacInput.hxx"
#include "FlacDomain.hxx"
#include "../DecoderAPI.hxx"
#include "input/InputStream.hxx"
#include "Log.hxx"
#include "util/Compiler.h"
#include <exception>
FLAC__StreamDecoderReadStatus
FlacInput::Read(FLAC__byte buffer[], size_t *bytes)
{
size_t r = decoder_read(client, input_stream, (void *)buffer, *bytes);
*bytes = r;
if (r == 0) {
if (input_stream.LockIsEOF() ||
(client != nullptr &&
client->GetCommand() != DecoderCommand::NONE))
return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
else
return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
}
return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
}
FLAC__StreamDecoderSeekStatus
FlacInput::Seek(FLAC__uint64 absolute_byte_offset)
{
if (!input_stream.IsSeekable())
return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
try {
input_stream.LockSeek(absolute_byte_offset);
return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
} catch (...) {
LogError(std::current_exception());
return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
}
}
FLAC__StreamDecoderTellStatus
FlacInput::Tell(FLAC__uint64 *absolute_byte_offset)
{
if (!input_stream.IsSeekable())
return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
*absolute_byte_offset = (FLAC__uint64)input_stream.GetOffset();
return FLAC__STREAM_DECODER_TELL_STATUS_OK;
}
FLAC__StreamDecoderLengthStatus
FlacInput::Length(FLAC__uint64 *stream_length)
{
if (!input_stream.KnownSize())
return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
*stream_length = (FLAC__uint64)input_stream.GetSize();
return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
}
FLAC__bool
FlacInput::Eof()
{
return (client != nullptr &&
client->GetCommand() != DecoderCommand::NONE &&
client->GetCommand() != DecoderCommand::SEEK) ||
input_stream.LockIsEOF();
}
void
FlacInput::Error(FLAC__StreamDecoderErrorStatus status)
{
if (client == nullptr ||
client->GetCommand() != DecoderCommand::STOP)
LogWarning(flac_domain,
FLAC__StreamDecoderErrorStatusString[status]);
}
FLAC__StreamDecoderReadStatus
FlacInput::Read(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__byte buffer[], size_t *bytes,
void *client_data)
{
FlacInput *i = (FlacInput *)client_data;
return i->Read(buffer, bytes);
}
FLAC__StreamDecoderSeekStatus
FlacInput::Seek(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__uint64 absolute_byte_offset, void *client_data)
{
FlacInput *i = (FlacInput *)client_data;
return i->Seek(absolute_byte_offset);
}
FLAC__StreamDecoderTellStatus
FlacInput::Tell(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__uint64 *absolute_byte_offset, void *client_data)
{
FlacInput *i = (FlacInput *)client_data;
return i->Tell(absolute_byte_offset);
}
FLAC__StreamDecoderLengthStatus
FlacInput::Length(gcc_unused const FLAC__StreamDecoder *flac_decoder,
FLAC__uint64 *stream_length, void *client_data)
{
FlacInput *i = (FlacInput *)client_data;
return i->Length(stream_length);
}
FLAC__bool
FlacInput::Eof(gcc_unused const FLAC__StreamDecoder *flac_decoder,
void *client_data)
{
FlacInput *i = (FlacInput *)client_data;
return i->Eof();
}
void
FlacInput::Error(gcc_unused const FLAC__StreamDecoder *decoder,
FLAC__StreamDecoderErrorStatus status, void *client_data)
{
FlacInput *i = (FlacInput *)client_data;
i->Error(status);
}