feat: add flake

flake: Alternative encoder for the Free Lossless Audio Codec

Log: add flake
Issue:
deepin-community/sig-deepin-sysdev-team#365

Changelog

@@ -0,0 +1,26 @@
+Flake TODO list
+---------------
+- Apply feature updates from FFmpeg
+- Shared lib/DLL support
+- 24-bit/32-bit lossless
+- Raw audio input
+- AIFF input
+- Import FFmpeg's FLAC decoder for verification during encoding
+- Vorbis Comment tag support
+- Embedded CUESHEET support
+
+Flake Changelog
+---------------
+version 0.11 : 5 July 2007
+- Significant speed improvements
+- Added log search
+- Added variable block size encoding
+- Added level 99 high-compression level
+- Quiet encoding mode (no console output except errors)
+- Changed output file designation to "-o output.flac"
+- Changed order method option to "-m #"
+- Added support for encoding multiple files at once
+
+version 0.10 : 11 September 2006 (Initial SVN import)
+- New configure system
+- Separate library & console app

Makefile

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+#
+# Flake Main Makefile
+#
+include config.mak
+
+VPATH=$(SRC_PATH)
+
+CFLAGS=$(OPTFLAGS) -I. -I$(SRC_PATH) -I$(SRC_PATH)/libflake \
+	-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_ISOC9X_SOURCE \
+	-DHAVE_CONFIG_H
+
+LDFLAGS+= -g
+
+FLAKE_LIBDIRS = -L./libflake
+FLAKE_LIBS = -lflake$(BUILDSUF)
+
+all: lib progs utils
+
+lib:
+	$(MAKE) -C libflake all
+
+progs:
+	$(MAKE) -C flake all
+
+utils:
+	$(MAKE) -C util all
+
+.PHONY: install
+
+install: install-progs install-libs install-headers
+
+install-progs: progs
+	$(MAKE) -C flake install
+
+install-libs:
+	$(MAKE) -C libflake install-libs
+
+install-headers:
+	$(MAKE) -C libflake install-headers
+
+uninstall: uninstall-progs uninstall-libs uninstall-headers
+
+uninstall-progs:
+	$(MAKE) -C flake uninstall-progs
+
+uninstall-libs:
+	$(MAKE) -C libflake uninstall-libs
+
+uninstall-headers:
+	$(MAKE) -C libflake uninstall-headers
+
+dep:	depend
+
+depend:
+	$(MAKE) -C libflake depend
+	$(MAKE) -C flake    depend
+	$(MAKE) -C util     depend
+
+clean:
+	$(MAKE) -C libflake clean
+	$(MAKE) -C flake    clean
+	$(MAKE) -C util     clean
+	rm -f *.o *.d *~
+
+distclean: clean
+	$(MAKE) -C libflake distclean
+	$(MAKE) -C flake    distclean
+	$(MAKE) -C util     distclean
+	rm -f .depend config.*
+
+# tar release (use 'make -k tar' on a checkouted tree)
+FILE=flake-$(shell grep "\#define FLAKE_VERSION " libflake/flake.h | \
+                    cut -d " " -f 3 )
+
+tar: distclean
+	rm -rf /tmp/$(FILE)
+	cp -r . /tmp/$(FILE)
+	(tar --exclude config.mak --exclude .svn -C /tmp -jcvf $(FILE).tar.bz2 $(FILE) )
+	rm -rf /tmp/$(FILE)
+
+config.mak:
+	touch config.mak
+
+.PHONY: lib
+
+ifneq ($(wildcard .depend),)
+include .depend
+endif

README

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+-------------------------------------------------------------------------------
+Flake: FLAC audio encoder
+
+The purpose of Flake is to be an alternative to the FLAC reference encoder
+with the goal of increasing encoding speed and implementing experimental
+features.
+
+Neither the program nor the library have stable interfaces. Therefore, the
+commandline options and the library API/ABI may change. After version 1.0 is
+released, this will become more stable.
+
+The FLAC format and reference encoder were created by Josh Coalson and are
+hosted by the Xiph.org Foundation.  Many thanks!
+
+-------------------------------------------------------------------------------
+Copyright (c) 2006-2007 Justin Ruggles <[email protected]>
+http://flake-enc.sourceforge.net/
+-------------------------------------------------------------------------------

bswap.h

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+/**
+ * @file bswap.h
+ * byte swap.
+ */
+
+#ifndef BSWAP_H
+#define BSWAP_H
+
+#include "common.h"
+
+static inline uint16_t bswap_16(uint16_t x){
+    return (x>>8) | (x<<8);
+}
+
+static inline uint32_t bswap_32(uint32_t x){
+    x= ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF);
+    return (x>>16) | (x<<16);
+}
+
+static inline uint64_t bswap_64(uint64_t x)
+{
+    union {
+        uint64_t ll;
+        uint32_t l[2];
+    } w, r;
+    w.ll = x;
+    r.l[0] = bswap_32(w.l[1]);
+    r.l[1] = bswap_32(w.l[0]);
+    return r.ll;
+}
+
+// be2me ... BigEndian to MachineEndian
+// le2me ... LittleEndian to MachineEndian
+
+#ifdef WORDS_BIGENDIAN
+#define be2me_16(x) (x)
+#define be2me_32(x) (x)
+#define be2me_64(x) (x)
+#define le2me_16(x) bswap_16(x)
+#define le2me_32(x) bswap_32(x)
+#define le2me_64(x) bswap_64(x)
+#else
+#define be2me_16(x) bswap_16(x)
+#define be2me_32(x) bswap_32(x)
+#define be2me_64(x) bswap_64(x)
+#define le2me_16(x) (x)
+#define le2me_32(x) (x)
+#define le2me_64(x) (x)
+#endif
+
+#endif /* BSWAP_H */

common.h

@@ -0,0 +1,93 @@
+/**
+ * Flake: FLAC audio encoder
+ * Copyright (c) 2006  Justin Ruggles
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file common.h
+ * Common header file
+ */
+
+#ifndef COMMON_H
+#define COMMON_H
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <assert.h>
+
+#include <math.h>
+#ifndef M_PI
+#define M_PI  3.14159265358979323846
+#endif
+#ifndef M_SQRT2
+#define M_SQRT2 1.41421356237309504880
+#endif
+
+#ifndef EMULATE_INTTYPES
+#include <inttypes.h>
+#else
+#if defined(_WIN32) && defined(_MSC_VER)
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+#endif
+#endif /* EMULATE_INTTYPES */
+
+#define ABS(a) ((a) >= 0 ? (a) : (-(a)))
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#define MIN(a,b) ((a) > (b) ? (b) : (a))
+#define CLIP(x,min,max) MAX(MIN((x), (max)), (min))
+
+static inline int
+log2i(uint32_t v)
+{
+    int i;
+    int n = 0;
+    if(v & 0xffff0000){ v >>= 16; n += 16; }
+    if(v & 0xff00){ v >>= 8; n += 8; }
+    for(i=2; i<256; i<<=1) {
+        if(v >= i) n++;
+        else break;
+    }
+    return n;
+}
+
+#include <string.h>
+
+// strnlen is a GNU extention. providing implementation if needed.
+#ifndef HAVE_STRNLEN
+static inline size_t
+strnlen(const char *s, size_t maxlen)
+{
+    size_t i = 0;
+    while((s[i] != '\0') && (i < maxlen)) i++;
+    return i;
+}
+#elif !defined(__USE_GNU)
+extern size_t strnlen(const char *s, size_t maxlen);
+#endif
+
+#endif /* COMMON_H */