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Diffstat (limited to '')
-rw-r--r-- | src/decoder/FLACCommon.hxx | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/decoder/FLACCommon.hxx b/src/decoder/FLACCommon.hxx new file mode 100644 index 000000000..b80372bbf --- /dev/null +++ b/src/decoder/FLACCommon.hxx @@ -0,0 +1,101 @@ +/* + * 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. + */ + +/* + * Common data structures and functions used by FLAC and OggFLAC + */ + +#ifndef MPD_FLAC_COMMON_HXX +#define MPD_FLAC_COMMON_HXX + +#include "FLACInput.hxx" +#include "decoder_api.h" + +extern "C" { +#include "pcm_buffer.h" +} + +#include <FLAC/stream_decoder.h> +#include <FLAC/metadata.h> + +#undef G_LOG_DOMAIN +#define G_LOG_DOMAIN "flac" + +struct flac_data : public FLACInput { + struct pcm_buffer 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. + */ + struct audio_format 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; + + struct decoder *decoder; + struct input_stream *input_stream; + + struct tag *tag; + + flac_data(struct decoder *decoder, struct input_stream *input_stream); + ~flac_data(); +}; + +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 */ |