decoder/*: move to decoder/plugins/

src/decoder/plugins/FlacInput.cxx

@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2003-2014 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 "config.h"
+#include "FlacInput.hxx"
+#include "FlacDomain.hxx"
+#include "../DecoderAPI.hxx"
+#include "InputStream.hxx"
+#include "util/Error.hxx"
+#include "Log.hxx"
+#include "Compiler.h"
+
+FLAC__StreamDecoderReadStatus
+FlacInput::Read(FLAC__byte buffer[], size_t *bytes)
+{
+	size_t r = decoder_read(decoder, input_stream, (void *)buffer, *bytes);
+	*bytes = r;
+
+	if (r == 0) {
+		if (input_stream.LockIsEOF() ||
+		    (decoder != nullptr &&
+		     decoder_get_command(*decoder) != 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.seekable)
+		return FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
+
+	::Error error;
+	if (!input_stream.LockSeek(absolute_byte_offset, SEEK_SET, error)) {
+		LogError(error);
+		return FLAC__STREAM_DECODER_SEEK_STATUS_ERROR;
+	}
+
+	return FLAC__STREAM_DECODER_SEEK_STATUS_OK;
+}
+
+FLAC__StreamDecoderTellStatus
+FlacInput::Tell(FLAC__uint64 *absolute_byte_offset)
+{
+	if (!input_stream.seekable)
+		return FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
+
+	*absolute_byte_offset = (FLAC__uint64)input_stream.offset;
+	return FLAC__STREAM_DECODER_TELL_STATUS_OK;
+}
+
+FLAC__StreamDecoderLengthStatus
+FlacInput::Length(FLAC__uint64 *stream_length)
+{
+	if (input_stream.size < 0)
+		return FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
+
+	*stream_length = (FLAC__uint64)input_stream.size;
+	return FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
+}
+
+FLAC__bool
+FlacInput::Eof()
+{
+	return (decoder != nullptr &&
+		decoder_get_command(*decoder) != DecoderCommand::NONE &&
+		decoder_get_command(*decoder) != DecoderCommand::SEEK) ||
+		input_stream.LockIsEOF();
+}
+
+void
+FlacInput::Error(FLAC__StreamDecoderErrorStatus status)
+{
+	if (decoder == nullptr ||
+	    decoder_get_command(*decoder) != 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);
+}
+