decoder/*: move to decoder/plugins/

src/decoder/plugins/FlacCommon.hxx

@@ -0,0 +1,93 @@
+/*
+ * 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.
+ */
+
+/*
+ * Common data structures and functions used by FLAC and OggFLAC
+ */
+
+#ifndef MPD_FLAC_COMMON_HXX
+#define MPD_FLAC_COMMON_HXX
+
+#include "FlacInput.hxx"
+#include "../DecoderAPI.hxx"
+#include "pcm/PcmBuffer.hxx"
+
+#include <FLAC/stream_decoder.h>
+
+struct flac_data : public FlacInput {
+	PcmBuffer buffer;
+
+	/**
+	 * The size of one frame in the output buffer.
+	 */
+	unsigned frame_size;
+
+	/**
+	 * Has decoder_initialized() been called yet?
+	 */
+	bool initialized;
+
+	/**
+	 * Does the FLAC file contain an unsupported audio format?
+	 */
+	bool unsupported;
+
+	/**
+	 * The validated audio format of the FLAC file.  This
+	 * attribute is defined if "initialized" is true.
+	 */
+	AudioFormat audio_format;
+
+	/**
+	 * The total number of frames in this song.  The decoder
+	 * plugin may initialize this attribute to override the value
+	 * provided by libFLAC (e.g. for sub songs from a CUE sheet).
+	 */
+	FLAC__uint64 total_frames;
+
+	/**
+	 * The number of the first frame in this song.  This is only
+	 * non-zero if playing sub songs from a CUE sheet.
+	 */
+	FLAC__uint64 first_frame;
+
+	/**
+	 * The number of the next frame which is going to be decoded.
+	 */
+	FLAC__uint64 next_frame;
+
+	FLAC__uint64 position;
+
+	Decoder &decoder;
+	InputStream &input_stream;
+
+	Tag tag;
+
+	flac_data(Decoder &decoder, InputStream &input_stream);
+};
+
+void flac_metadata_common_cb(const FLAC__StreamMetadata * block,
+			     struct flac_data *data);
+
+FLAC__StreamDecoderWriteStatus
+flac_common_write(struct flac_data *data, const FLAC__Frame * frame,
+		  const FLAC__int32 *const buf[],
+		  FLAC__uint64 nbytes);
+
+#endif /* _FLAC_COMMON_H */