1 files changed, 149 insertions, 0 deletions
diff --git a/src/decoder/FLACInput.cxx b/src/decoder/FLACInput.cxx
new file mode 100644
index 00000000..ba0a86ce
--- /dev/null
+++ b/src/decoder/FLACInput.cxx
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2003-2012 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 "decoder_api.h"
+#include "gcc.h"
+#include "InputStream.hxx"
+
+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_lock_eof(input_stream) ||
+		    (decoder != nullptr &&
+		     decoder_get_command(decoder) != DECODE_COMMAND_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;
+
+	if (!input_stream_lock_seek(input_stream,
+				    absolute_byte_offset, SEEK_SET,
+				    nullptr))
+		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) != DECODE_COMMAND_NONE &&
+		decoder_get_command(decoder) != DECODE_COMMAND_SEEK) ||
+		input_stream_lock_eof(input_stream);
+}
+
+void
+FLACInput::Error(FLAC__StreamDecoderErrorStatus status)
+{
+	if (decoder == nullptr ||
+	    decoder_get_command(decoder) != DECODE_COMMAND_STOP)
+		g_warning("%s", 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);
+}
+