mad-dev June 2004

mad-dev@lists.mars.org

3 participants
4 discussions

mp3gain vs madplay
by Bruce Fitzsimons 15 Sep '04

15 Sep '04

Peoples, I'm about to launch into a debugging session to see why mp3gain (http://mp3gain.sourceforge.net/ ) and madplay 0.15.1b don't seem to be playing together (no pun intended). I thought I'd ask if anyone has used the two together yet, or if there is another linux-based replaygain processor (for adding replaygain to existing mp3s) that is more reliable. map3gain does appear to be adding a tag, as it finds it again if rerun over the same file. "# mp3gain /tmp/Abracadabra.mp3 /tmp/Abracadabra.mp3 Recommended "Track" dB change: -1.690000 Recommended "Track" mp3 gain change: -1 Max PCM sample at current gain: 28533.063680 Max mp3 global gain field: 180 Min mp3 global gain field: 116 Recommended "Album" dB change for all files: -7.490000 Recommended "Album" mp3 gain change for all files: -5" madplay doesn't appear to find it: "# madplay -G -Tv /tmp/Abracadabra.mp3 MPEG Audio Decoder 0.15.1 (beta) - Copyright (C) 2000-2004 Robert Leslie et al. Title: Abracadabra Artist: The Steve Miller Band Album: Golds Greatest Hits Track: 11 Year: 1982 Genre: Vocal Encoder Version: LAME 3.92 VBR Method: constant Bitrate: 255+ kbps Stereo Mode: normal Preset: none Unwise Settings: no Encoding Flags: Lowpass Filter: 19500 Hz ATH Type: 2 Noise Shaping: 1 Surround: none Start Delay: 576 samples End Padding: 1503 samples Source Rate: 44.1 kHz Music Length: 9948263 bytes Audio Frames: 11900" (note the missing "Replay Gain" printout I expect after reading the source) I'd hasten to add that I suspect mp3gain of doing something wrong, not madplay. I'm guessing the tag is wrong or in the wrong place. Any info would be appreciated, otherwise I'll report my findings to the list when I discover the root cause. /Bruce

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question about decode mp3-encoded wav
by shiming dong 22 Jun '04

22 Jun '04

Hi there: I tried to get the raw pcm data from a mp3-encoded riff wav file. Can I use the libmad to do that? I mean, except to the header of the file, is each frame header and data the same as that in the mp3 file? And where can I get such file's format description? Thank you! shiming _________________________________________________________________ FREE pop-up blocking with the new MSN Toolbar get it now! http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/

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Re: Re: [mad-dev] Compiling minimad.c under Windows
by Some One 06 Jun '04

06 Jun '04

Thanks alot. This works perfectly even though it does give a warning saying that "FDM_INTEL" is redefined in "mad.h". However, it decodes an mp3 to pcm fine using "./minimad <track.mp3> track.pcm". >From: Rob Leslie <rob(a)mars.org> >To: mad-dev(a)lists.mars.org >Subject: Re: [mad-dev] Compiling minimad.c under Windows >Date: Sun, 6 Jun 2004 12:45:29 -0700 > >On Jun 6, 2004, at 2:34 AM, Some One wrote: >>Hi, I'm trying to compile minimad.c using Cygwin and GCC. >> >>I've copied the "libmad-0.51.1b" folder into the Cygwin root as "mad" and >>followed all the steps in the "INSTALL" file (configure, make, make >>install). It does all that fine (makes the Makefile and config file, >>creates the objects in the "./deps" folder, installs the mad library in >>"usr/local/lib" and puts "mad.h" in "usr/local/include"). >> >>However, when a try "make minimad" in the "mad" folder, it returns: >>"gcc -Wall -march=i486 -g -O -fforce-mem -fforce-addr -fthread-jumps >>-fcse-follow -jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove >>-fschedule-insns2 -fstrength-reduce >>minimad.c -o minimad >>/cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0xc3): In >>function `input': >>/mad/minimad.c:92: undefined reference to `_mad_stream_buffer' >>/cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x246): In >>function `error': >>/mad/minimad.c:177: undefined reference to `_mad_stream_errorstr' >>/cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x2a7): In >>function `decode': >>/mad/minimad.c:209: undefined reference to `_mad_decoder_init' >>/cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x2b2): >>/mad/minimad.c:215: undefined reference to `_mad_decoder_run' >>/cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x2bc): >>/mad/minimad.c:219: undefined reference to `_mad_decoder_finish' >>collect2: ld returned 1 exit status >>make: *** [minimad] Error 1" >> >>I don't know what I'm doing wrong or even what it means by "undefined >>reference". > >Try instead: make minimad.exe > >-- >Rob Leslie >rob(a)mars.org > _________________________________________________________________ Download games, logos, wallpapers and lots more at MSN Mobile! http://www.msn.com.sg/mobile/

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Compiling minimad.c under Windows
by Some One 06 Jun '04

06 Jun '04

Hi, I'm trying to compile minimad.c using Cygwin and GCC. I've copied the "libmad-0.51.1b" folder into the Cygwin root as "mad" and followed all the steps in the "INSTALL" file (configure, make, make install). It does all that fine (makes the Makefile and config file, creates the objects in the "./deps" folder, installs the mad library in "usr/local/lib" and puts "mad.h" in "usr/local/include"). However, when a try "make minimad" in the "mad" folder, it returns: "gcc -Wall -march=i486 -g -O -fforce-mem -fforce-addr -fthread-jumps -fcse-follow -jumps -fcse-skip-blocks -fexpensive-optimizations -fregmove -fschedule-insns2 -fstrength-reduce minimad.c -o minimad /cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0xc3): In function `input': /mad/minimad.c:92: undefined reference to `_mad_stream_buffer' /cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x246): In function `error': /mad/minimad.c:177: undefined reference to `_mad_stream_errorstr' /cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x2a7): In function `decode': /mad/minimad.c:209: undefined reference to `_mad_decoder_init' /cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x2b2): /mad/minimad.c:215: undefined reference to `_mad_decoder_run' /cygdrive/c/DOCUME~1/USERNAME/LOCALS~1/Temp/ccyf7LL5.o(.text+0x2bc): /mad/minimad.c:219: undefined reference to `_mad_decoder_finish' collect2: ld returned 1 exit status make: *** [minimad] Error 1" I don't know what I'm doing wrong or even what it means by "undefined reference". Thanks in advance for any help. _________________________________________________________________ Watch the online reality show Mixed Messages with a friend and enter to win a trip to NY http://www.msnmessenger-download.click-url.com/go/onm00200497ave/direct/01/

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mad-dev June 2004