1 files changed, 0 insertions, 361 deletions
diff --git a/src/decoder/DsfDecoderPlugin.cxx b/src/decoder/DsfDecoderPlugin.cxx
deleted file mode 100644
index 9fbfe9cda..000000000
--- a/src/decoder/DsfDecoderPlugin.cxx
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
- * Copyright (C) 2003-2013 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.
- */
-
-/* \file
- *
- * This plugin decodes DSDIFF data (SACD) embedded in DSF files.
- *
- * The DSF code was created using the specification found here:
- * http://dsd-guide.com/sonys-dsf-file-format-spec
- *
- * All functions common to both DSD decoders have been moved to dsdlib
- */
-
-#include "config.h"
-#include "DsfDecoderPlugin.hxx"
-#include "DecoderAPI.hxx"
-#include "InputStream.hxx"
-#include "CheckAudioFormat.hxx"
-#include "util/bit_reverse.h"
-#include "util/Error.hxx"
-#include "system/ByteOrder.hxx"
-#include "DsdLib.hxx"
-#include "tag/TagHandler.hxx"
-#include "Log.hxx"
-
-#include <unistd.h>
-#include <stdio.h> /* for SEEK_SET, SEEK_CUR */
-
-struct DsfMetaData {
-	unsigned sample_rate, channels;
-	bool bitreverse;
-	uint64_t chunk_size;
-#ifdef HAVE_ID3TAG
-	InputStream::offset_type id3_offset;
-	uint64_t id3_size;
-#endif
-};
-
-struct DsfHeader {
-	/** DSF header id: "DSD " */
-	DsdId id;
-	/** DSD chunk size, including id = 28 */
-	DsdUint64 size;
-	/** total file size */
-	DsdUint64 fsize;
-	/** pointer to id3v2 metadata, should be at the end of the file */
-	DsdUint64 pmeta;
-};
-
-/** DSF file fmt chunk */
-struct DsfFmtChunk {
-	/** id: "fmt " */
-	DsdId id;
-	/** fmt chunk size, including id, normally 52 */
-	DsdUint64 size;
-	/** version of this format = 1 */
-	uint32_t version;
-	/** 0: DSD raw */
-	uint32_t formatid;
-	/** channel type, 1 = mono, 2 = stereo, 3 = 3 channels, etc */
-	uint32_t channeltype;
-	/** Channel number, 1 = mono, 2 = stereo, ... 6 = 6 channels */
-	uint32_t channelnum;
-	/** sample frequency: 2822400, 5644800 */
-	uint32_t sample_freq;
-	/** bits per sample 1 or 8 */
-	uint32_t bitssample;
-	/** Sample count per channel in bytes */
-	DsdUint64 scnt;
-	/** block size per channel = 4096 */
-	uint32_t block_size;
-	/** reserved, should be all zero */
-	uint32_t reserved;
-};
-
-struct DsfDataChunk {
-	DsdId id;
-	/** "data" chunk size, includes header (id+size) */
-	DsdUint64 size;
-};
-
-/**
- * Read and parse all needed metadata chunks for DSF files.
- */
-static bool
-dsf_read_metadata(Decoder *decoder, InputStream &is,
-		  DsfMetaData *metadata)
-{
-	DsfHeader dsf_header;
-	if (!decoder_read_full(decoder, is, &dsf_header, sizeof(dsf_header)) ||
-	    !dsf_header.id.Equals("DSD "))
-		return false;
-
-	const uint64_t chunk_size = dsf_header.size.Read();
-	if (sizeof(dsf_header) != chunk_size)
-		return false;
-
-#ifdef HAVE_ID3TAG
-	const uint64_t metadata_offset = dsf_header.pmeta.Read();
-#endif
-
-	/* read the 'fmt ' chunk of the DSF file */
-	DsfFmtChunk dsf_fmt_chunk;
-	if (!decoder_read_full(decoder, is,
-			       &dsf_fmt_chunk, sizeof(dsf_fmt_chunk)) ||
-	    !dsf_fmt_chunk.id.Equals("fmt "))
-		return false;
-
-	const uint64_t fmt_chunk_size = dsf_fmt_chunk.size.Read();
-	if (fmt_chunk_size != sizeof(dsf_fmt_chunk))
-		return false;
-
-	uint32_t samplefreq = FromLE32(dsf_fmt_chunk.sample_freq);
-
-	/* for now, only support version 1 of the standard, DSD raw stereo
-	   files with a sample freq of 2822400 or 5644800 Hz */
-
-	if (dsf_fmt_chunk.version != 1 || dsf_fmt_chunk.formatid != 0
-	    || dsf_fmt_chunk.channeltype != 2
-	    || dsf_fmt_chunk.channelnum != 2
-	    || (samplefreq != 2822400 && samplefreq != 5644800))
-		return false;
-
-	uint32_t chblksize = FromLE32(dsf_fmt_chunk.block_size);
-	/* according to the spec block size should always be 4096 */
-	if (chblksize != 4096)
-		return false;
-
-	/* read the 'data' chunk of the DSF file */
-	DsfDataChunk data_chunk;
-	if (!decoder_read_full(decoder, is, &data_chunk, sizeof(data_chunk)) ||
-	    !data_chunk.id.Equals("data"))
-		return false;
-
-	/* data size of DSF files are padded to multiple of 4096,
-	   we use the actual data size as chunk size */
-
-	uint64_t data_size = data_chunk.size.Read();
-	if (data_size < sizeof(data_chunk))
-		return false;
-
-	data_size -= sizeof(data_chunk);
-
-	/* data_size cannot be bigger or equal to total file size */
-	const uint64_t size = (uint64_t)is.GetSize();
-	if (data_size >= size)
-		return false;
-
-	/* use the sample count from the DSF header as the upper
-	   bound, because some DSF files contain junk at the end of
-	   the "data" chunk */
-	const uint64_t samplecnt = dsf_fmt_chunk.scnt.Read();
-	const uint64_t playable_size = samplecnt * 2 / 8;
-	if (data_size > playable_size)
-		data_size = playable_size;
-
-	metadata->chunk_size = data_size;
-	metadata->channels = (unsigned) dsf_fmt_chunk.channelnum;
-	metadata->sample_rate = samplefreq;
-#ifdef HAVE_ID3TAG
-	/* metada_offset cannot be bigger then or equal to total file size */
-	if (metadata_offset >= size)
-		metadata->id3_offset = 0;
-	else
-		metadata->id3_offset = (InputStream::offset_type)metadata_offset;
-#endif
-	/* check bits per sample format, determine if bitreverse is needed */
-	metadata->bitreverse = dsf_fmt_chunk.bitssample == 1;
-	return true;
-}
-
-static void
-bit_reverse_buffer(uint8_t *p, uint8_t *end)
-{
-	for (; p < end; ++p)
-		*p = bit_reverse(*p);
-}
-
-/**
- * DSF data is build up of alternating 4096 blocks of DSD samples for left and
- * right. Convert the buffer holding 1 block of 4096 DSD left samples and 1
- * block of 4096 DSD right samples to 8k of samples in normal PCM left/right
- * order.
- */
-static void
-dsf_to_pcm_order(uint8_t *dest, uint8_t *scratch, size_t nrbytes)
-{
-	for (unsigned i = 0, j = 0; i < (unsigned)nrbytes; i += 2) {
-		scratch[i] = *(dest+j);
-		j++;
-	}
-
-	for (unsigned i = 1, j = 0; i < (unsigned) nrbytes; i += 2) {
-		scratch[i] = *(dest+4096+j);
-		j++;
-	}
-
-	for (unsigned i = 0; i < (unsigned)nrbytes; i++) {
-		*dest = scratch[i];
-		dest++;
-	}
-}
-
-/**
- * Decode one complete DSF 'data' chunk i.e. a complete song
- */
-static bool
-dsf_decode_chunk(Decoder &decoder, InputStream &is,
-		    unsigned channels,
-		    uint64_t chunk_size,
-		    bool bitreverse)
-{
-	uint8_t buffer[8192];
-
-	/* scratch buffer for DSF samples to convert to the needed
-	   normal left/right regime of samples */
-	uint8_t dsf_scratch_buffer[8192];
-
-	const size_t sample_size = sizeof(buffer[0]);
-	const size_t frame_size = channels * sample_size;
-	const unsigned buffer_frames = sizeof(buffer) / frame_size;
-	const unsigned buffer_samples = buffer_frames * frame_size;
-	const size_t buffer_size = buffer_samples * sample_size;
-
-	while (chunk_size >= frame_size) {
-		/* see how much aligned data from the remaining chunk
-		   fits into the local buffer */
-		size_t now_size = buffer_size;
-		if (chunk_size < (uint64_t)now_size) {
-			unsigned now_frames =
-				(unsigned)chunk_size / frame_size;
-			now_size = now_frames * frame_size;
-		}
-
-		if (!decoder_read_full(&decoder, is, buffer, now_size))
-			return false;
-
-		const size_t nbytes = now_size;
-		chunk_size -= nbytes;
-
-		if (bitreverse)
-			bit_reverse_buffer(buffer, buffer + nbytes);
-
-		dsf_to_pcm_order(buffer, dsf_scratch_buffer, nbytes);
-
-		const auto cmd = decoder_data(decoder, is, buffer, nbytes, 0);
-		switch (cmd) {
-		case DecoderCommand::NONE:
-			break;
-
-		case DecoderCommand::START:
-		case DecoderCommand::STOP:
-			return false;
-
-		case DecoderCommand::SEEK:
-
-			/* not implemented yet */
-			decoder_seek_error(decoder);
-			break;
-			}
-	}
-	return dsdlib_skip(&decoder, is, chunk_size);
-}
-
-static void
-dsf_stream_decode(Decoder &decoder, InputStream &is)
-{
-	/* check if it is a proper DSF file */
-	DsfMetaData metadata;
-	if (!dsf_read_metadata(&decoder, is, &metadata))
-		return;
-
-	Error error;
-	AudioFormat audio_format;
-	if (!audio_format_init_checked(audio_format, metadata.sample_rate / 8,
-				       SampleFormat::DSD,
-				       metadata.channels, error)) {
-		LogError(error);
-		return;
-	}
-	/* Calculate song time from DSD chunk size and sample frequency */
-	uint64_t chunk_size = metadata.chunk_size;
-	float songtime = ((chunk_size / metadata.channels) * 8) /
-			 (float) metadata.sample_rate;
-
-	/* success: file was recognized */
-	decoder_initialized(decoder, audio_format, false, songtime);
-
-	if (!dsf_decode_chunk(decoder, is, metadata.channels,
-			      chunk_size,
-			      metadata.bitreverse))
-		return;
-}
-
-static bool
-dsf_scan_stream(InputStream &is,
-		gcc_unused const struct tag_handler *handler,
-		gcc_unused void *handler_ctx)
-{
-	/* check DSF metadata */
-	DsfMetaData metadata;
-	if (!dsf_read_metadata(nullptr, is, &metadata))
-		return false;
-
-	AudioFormat audio_format;
-	if (!audio_format_init_checked(audio_format, metadata.sample_rate / 8,
-				       SampleFormat::DSD,
-				       metadata.channels, IgnoreError()))
-		/* refuse to parse files which we cannot play anyway */
-		return false;
-
-	/* calculate song time and add as tag */
-	unsigned songtime = ((metadata.chunk_size / metadata.channels) * 8) /
-			    metadata.sample_rate;
-	tag_handler_invoke_duration(handler, handler_ctx, songtime);
-
-#ifdef HAVE_ID3TAG
-	/* Add available tags from the ID3 tag */
-	dsdlib_tag_id3(is, handler, handler_ctx, metadata.id3_offset);
-#endif
-	return true;
-}
-
-static const char *const dsf_suffixes[] = {
-	"dsf",
-	nullptr
-};
-
-static const char *const dsf_mime_types[] = {
-	"application/x-dsf",
-	nullptr
-};
-
-const struct DecoderPlugin dsf_decoder_plugin = {
-	"dsf",
-	nullptr,
-	nullptr,
-	dsf_stream_decode,
-	nullptr,
-	nullptr,
-	dsf_scan_stream,
-	nullptr,
-	dsf_suffixes,
-	dsf_mime_types,
-};