139 lines
3.5 KiB
C++
139 lines
3.5 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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// Copyright The Music Player Daemon Project
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#include "FlacInput.hxx"
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#include "FlacDomain.hxx"
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#include "../DecoderAPI.hxx"
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#include "input/InputStream.hxx"
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#include "Log.hxx"
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#include <exception>
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inline FLAC__StreamDecoderReadStatus
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FlacInput::Read(FLAC__byte buffer[], size_t *bytes) noexcept
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{
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size_t r = decoder_read(client, input_stream, (void *)buffer, *bytes);
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*bytes = r;
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if (r == 0) {
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if (input_stream.LockIsEOF() ||
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(client != nullptr &&
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client->GetCommand() != DecoderCommand::NONE))
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return FLAC__STREAM_DECODER_READ_STATUS_END_OF_STREAM;
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else
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return FLAC__STREAM_DECODER_READ_STATUS_ABORT;
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}
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return FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
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}
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inline FLAC__StreamDecoderSeekStatus
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FlacInput::Seek(FLAC__uint64 absolute_byte_offset) noexcept
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{
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if (!input_stream.IsSeekable())
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return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
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try {
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input_stream.LockSeek(absolute_byte_offset);
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return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
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} catch (...) {
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LogError(std::current_exception());
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return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
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}
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}
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inline FLAC__StreamDecoderTellStatus
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FlacInput::Tell(FLAC__uint64 *absolute_byte_offset) noexcept
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{
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if (!input_stream.IsSeekable())
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return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
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*absolute_byte_offset = (FLAC__uint64)input_stream.GetOffset();
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return FLAC__STREAM_DECODER_TELL_STATUS_OK;
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}
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inline FLAC__StreamDecoderLengthStatus
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FlacInput::Length(FLAC__uint64 *stream_length) noexcept
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{
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if (!input_stream.KnownSize())
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return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
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*stream_length = (FLAC__uint64)input_stream.GetSize();
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return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
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}
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inline FLAC__bool
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FlacInput::Eof() noexcept
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{
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return (client != nullptr &&
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client->GetCommand() != DecoderCommand::NONE &&
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client->GetCommand() != DecoderCommand::SEEK) ||
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input_stream.LockIsEOF();
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}
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inline void
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FlacInput::Error(FLAC__StreamDecoderErrorStatus status) noexcept
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{
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if (client == nullptr ||
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client->GetCommand() != DecoderCommand::STOP)
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LogWarning(flac_domain,
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FLAC__StreamDecoderErrorStatusString[status]);
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}
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FLAC__StreamDecoderReadStatus
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FlacInput::Read([[maybe_unused]] const FLAC__StreamDecoder *flac_decoder,
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FLAC__byte buffer[], size_t *bytes,
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void *client_data) noexcept
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{
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auto *i = (FlacInput *)client_data;
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return i->Read(buffer, bytes);
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}
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FLAC__StreamDecoderSeekStatus
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FlacInput::Seek([[maybe_unused]] const FLAC__StreamDecoder *flac_decoder,
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FLAC__uint64 absolute_byte_offset, void *client_data) noexcept
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{
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auto *i = (FlacInput *)client_data;
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return i->Seek(absolute_byte_offset);
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}
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FLAC__StreamDecoderTellStatus
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FlacInput::Tell([[maybe_unused]] const FLAC__StreamDecoder *flac_decoder,
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FLAC__uint64 *absolute_byte_offset, void *client_data) noexcept
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{
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auto *i = (FlacInput *)client_data;
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return i->Tell(absolute_byte_offset);
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}
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FLAC__StreamDecoderLengthStatus
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FlacInput::Length([[maybe_unused]] const FLAC__StreamDecoder *flac_decoder,
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FLAC__uint64 *stream_length, void *client_data) noexcept
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{
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auto *i = (FlacInput *)client_data;
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return i->Length(stream_length);
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}
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FLAC__bool
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FlacInput::Eof([[maybe_unused]] const FLAC__StreamDecoder *flac_decoder,
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void *client_data) noexcept
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{
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auto *i = (FlacInput *)client_data;
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return i->Eof();
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}
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void
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FlacInput::Error([[maybe_unused]] const FLAC__StreamDecoder *decoder,
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FLAC__StreamDecoderErrorStatus status,
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void *client_data) noexcept
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{
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auto *i = (FlacInput *)client_data;
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i->Error(status);
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}
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