[llvm-commits] CVS: llvm-test/MultiSource/Benchmarks/mediabench/g721/LICENSE.TXT Makefile README

[Dinakar Dhurjati]

Changes in directory llvm-test/MultiSource/Benchmarks/mediabench/g721:

LICENSE.TXT added (r1.1)
Makefile added (r1.1)
README added (r1.1)
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Log message:


Added media bench to llvm-test


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Diffs of the changes:  (+109 -0)

Index: llvm-test/MultiSource/Benchmarks/mediabench/g721/LICENSE.TXT
diff -c /dev/null llvm-test/MultiSource/Benchmarks/mediabench/g721/LICENSE.TXT:1.1
*** /dev/null	Tue Jan 11 12:05:49 2005
--- llvm-test/MultiSource/Benchmarks/mediabench/g721/LICENSE.TXT	Tue Jan 11 12:04:39 2005
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--- 1,9 ----
+ g721 - Part of the mediabench Benchmark Suite
+ -------------------------------------------------------------------------------
+ All files are licensed under the LLVM license with the following additions:
+ 
+ Please see individiual files for additional copyright information.
+ Redistribution must follow the additional restrictions required by the
+ individual files.
+ 
+ 


Index: llvm-test/MultiSource/Benchmarks/mediabench/g721/Makefile
diff -c /dev/null llvm-test/MultiSource/Benchmarks/mediabench/g721/Makefile:1.1
*** /dev/null	Tue Jan 11 12:05:50 2005
--- llvm-test/MultiSource/Benchmarks/mediabench/g721/Makefile	Tue Jan 11 12:04:39 2005
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+ #MultiSource/mediabench/g721 Makefile: Build all subdirectories automatically
+ 
+ LEVEL = ../../../..
+ PARALLEL_DIRS  := g721encode 
+ 
+ include $(LEVEL)/Makefile.programs


Index: llvm-test/MultiSource/Benchmarks/mediabench/g721/README
diff -c /dev/null llvm-test/MultiSource/Benchmarks/mediabench/g721/README:1.1
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+ The files in this directory comprise ANSI-C language reference implementations
+ of the CCITT (International Telegraph and Telephone Consultative Committee)
+ G.711, G.721 and G.723 voice compressions.  They have been tested on Sun
+ SPARCstations and passed 82 out of 84 test vectors published by CCITT
+ (Dec. 20, 1988) for G.721 and G.723.  [The two remaining test vectors,
+ which the G.721 decoder implementation for u-law samples did not pass,
+ may be in error because they are identical to two other vectors for G.723_40.]
+ 
+ This source code is released by Sun Microsystems, Inc. to the public domain.
+ Please give your acknowledgement in product literature if this code is used
+ in your product implementation.
+ 
+ Sun Microsystems supports some CCITT audio formats in Solaris 2.0 system
+ software.  However, Sun's implementations have been optimized for higher
+ performance on SPARCstations.
+ 
+ 
+ The source files for CCITT conversion routines in this directory are:
+ 
+ 	g72x.h		header file for g721.c, g723_24.c and g723_40.c
+ 	g711.c		CCITT G.711 u-law and A-law compression
+ 	g72x.c		common denominator of G.721 and G.723 ADPCM codes
+ 	g721.c		CCITT G.721 32Kbps ADPCM coder (with g72x.c)
+ 	g723_24.c	CCITT G.723 24Kbps ADPCM coder (with g72x.c)
+ 	g723_40.c	CCITT G.723 40Kbps ADPCM coder (with g72x.c)
+ 
+ 
+ Simple conversions between u-law, A-law, and 16-bit linear PCM are invoked
+ as follows:
+ 
+ 	unsigned char		ucode, acode;
+ 	short			pcm_val;
+ 
+ 	ucode = linear2ulaw(pcm_val);
+ 	ucode = alaw2ulaw(acode);
+ 
+ 	acode = linear2alaw(pcm_val);
+ 	acode = ulaw2alaw(ucode);
+ 
+ 	pcm_val = ulaw2linear(ucode);
+ 	pcm_val = alaw2linear(acode);
+ 
+ 
+ The other CCITT compression routines are invoked as follows:
+ 
+ 	#include "g72x.h"
+ 
+ 	struct g72x_state	state;
+ 	int			sample, code;
+ 
+ 	g72x_init_state(&state);
+ 	code = {g721,g723_24,g723_40}_encoder(sample, coding, &state);
+ 	sample = {g721,g723_24,g723_40}_decoder(code, coding, &state);
+ 
+ where
+ 	coding = AUDIO_ENCODING_ULAW	for 8-bit u-law samples
+ 		 AUDIO_ENCODING_ALAW	for 8-bit A-law samples
+ 		 AUDIO_ENCODING_LINEAR	for 16-bit linear PCM samples
+ 
+ 
+ 
+ This directory also includes the following sample programs:
+ 
+ 	encode.c	CCITT ADPCM encoder
+ 	decode.c	CCITT ADPCM decoder
+ 	Makefile	makefile for the sample programs
+ 
+ 
+ The sample programs contain examples of how to call the various compression
+ routines and pack/unpack the bits.  The sample programs read byte streams from
+ stdin and write to stdout.  The input/output data is raw data (no file header
+ or other identifying information is embedded).  The sample programs are
+ invoked as follows:
+ 
+ 	encode [-3|4|5] [-a|u|l] <infile >outfile
+ 	decode [-3|4|5] [-a|u|l] <infile >outfile
+ where:
+ 	-3	encode to (decode from) G.723 24kbps (3-bit) data
+ 	-4	encode to (decode from) G.721 32kbps (4-bit) data [the default]
+ 	-5	encode to (decode from) G.723 40kbps (5-bit) data
+ 	-a	encode from (decode to) A-law data
+ 	-u	encode from (decode to) u-law data [the default]
+ 	-l	encode from (decode to) 16-bit linear data
+ 
+ Examples:
+ 	# Read 16-bit linear and output G.721
+ 	encode -4 -l <pcmfile >g721file
+ 
+ 	# Read 40Kbps G.723 and output A-law
+ 	decode -5 -a <g723file >alawfile
+ 
+ 	# Compress and then decompress u-law data using 24Kbps G.723
+ 	encode -3 <ulawin | deoced -3 >ulawout
+