mad-dev August 2003

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by Asyn liao 18 Aug '03

18 Aug '03

Dear Sir: Do you think some one can add "Mad" to MCU 33MHz? Is there somebody who do it successfully? Asyn 2003/8/18

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How to get older version libmad distrubution?
by Clarence Lee 13 Aug '03

13 Aug '03

I am trying to let libmad works on Altera NIOS 2.11 but some reason the libmad-0.15.0b.tar.gz always get compiler fatal error (I even try to use newest cygwin enviroment to do a i686-pc-cygwin build but got "undefined reference" on minimad.c ..) I want to try older version...libmad.. but I can't get older version libmad on ftp server There are only mad distribution I know there is a subfolder in mad but no minimad.c there Clarence Lee

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Compile error
by hank.jan＠billionton.com.tw 12 Aug '03

12 Aug '03

Hi, I encountered some trouble when I did the cross compile. While compiling MAD 0.14.2b with the following setting: export CC=arm-linux-gcc export LD=arm-linux-ld ./configure --host=arm-linux --enable-fpm=arm It works successfully. Then I ran "make", but I got a long list of error message: /bin/sh ./libtool --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -Wall -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -finline-functions -c synth.c gcc -DHAVE_CONFIG_H -I. -I. -I. -DFPM_ARM -Wall -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow-jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce -finline-functions -c synth.c -o synth.o synth.c: In function `dct32': synth.c:218: warning: asm operand 2 probably doesn't match constraints synth.c:218: warning: asm operand 3 probably doesn't match constraints synth.c:218: inconsistent operand constraints in an `asm' synth.c:219: inconsistent operand constraints in an `asm' synth.c: In function `synth_full': synth.c:611: warning: asm operand 2 probably doesn't match constraints synth.c:611: warning: asm operand 3 probably doesn't match constraints synth.c:611: inconsistent operand constraints in an `asm' synth.c:642: inconsistent operand constraints in an `asm' synth.c: In function `synth_half': synth.c:748: warning: asm operand 2 probably doesn't match constraints synth.c:748: warning: asm operand 3 probably doesn't match constraints synth.c:748: inconsistent operand constraints in an `asm' synth.c:780: inconsistent operand constraints in an `asm' make[2]: *** [synth.lo] Error 1 make[2]: Leaving directory `/root/player/mad-0.14.2b/libmad' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/root/player/mad-0.14.2b' make: *** [all-recursive-am] Error 2 (I don't list the whole message, because it is too long....) Does any one know what's going on? Thanks in advance.

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Cross compiling libmad for sh-4
by Alex Bradbury 11 Aug '03

11 Aug '03

I have a working sh-elf build chain set up using gcc3.3.1, binutils 2.12.1 and newlib 1.9.0. I want to cross-compile the libmad library using this (so I can use it with the DC port of scummvm). The problem is that the configure script fails: checking for C compiler default output... configure: error: C compiler cannot create executables So I'm not really sure how to go about doing this cross compile successfully - can anyone help me? Alex Bradbury

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Code Size Estimation of Minimad
by Yeh You-Ying(EnE) 05 Aug '03

05 Aug '03

Greeting, I've tried to make a minimal minimad.exe. I just let the minimad.exe to deal with MPEG-I Layer 3 source. Now the code size is about 92K. I used exe2bin,provided by Microsoft, to remove the execution header, but failed. The exe2bin seems to only handle executions which are gernerated by assembler. Therefore so far I do not know the code size of this minimal decode engine. Any one know how to get the estimation ? Any one has the reference data ? Thanks a lot.

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Fwd: Re: [mad-dev] Re: How to know the frequency of a frame
by Shiming Dong 01 Aug '03

01 Aug '03

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Re: How to know the frequency of a frame
by armin.gerritsen＠philips.com 01 Aug '03

01 Aug '03

mad-dev-request(a)lists.mars.org wrote: > Message: 1 > Date: Wed, 30 Jul 2003 16:56:15 -0700 (PDT) > From: Shiming Dong <dong_sm(a)yahoo.com> > To: mad-dev(a)lists.mars.org > Subject: [mad-dev] How to know the frequency of a frame > > --0-1603577723-1059609375=:7610 > Content-Type: text/plain; charset=us-ascii > > Hi there: > > I have one question: I was supposed to implement a program to detect > a specific marker tone. But my problem is how to know the frequency > of each frame? > > Thank you! > > shiming I guess you mean the samplerate? For instance 44,1kHz. In that case it is easy. Once you have decoded a frame, at some point you will synthesise it to PCM samples. struct mad_frame myFrame ; struct mad_synth mySynth ; [...lots of code...] mad_synth_frame( &mySynth, &myFrame ) ; After that mySynth.pcm.samplerate will contain the samplerate. For instance 44100 for 44,1kHz. Regards, Armin

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mad-dev August 2003