mad-dev

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682 discussions

Synthesis filter bank in libmad
by Karthika 29 Mar '07

29 Mar '07

Helloo, I am trying to understand the synthesis filter bank in the LIBMAD. I could not understand in what order the D coefficients are used to obtain the PCM samples. Also,half of these coefficients have some relation to the other half. Then, why all the coefficients are being used in D.dat file? What is the significance of even and odd pointers? How is the windowing operation between U vector and D vector taking place? Also, I would like to know if we can further optimize the LIBMAD source code. For e.g, by using Cooley-Tukey algorithm for the calculation of fastdct() and dct32() . Could anyone suggest any further optimization techniques for porting LIBMAD on an ARM processor? Any help will be greatly appreciated. Thanks and Regards, Karthika Lakshmi. __________________________________________________________ Yahoo! India Answers: Share what you know. Learn something new http://in.answers.yahoo.com/

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[SOS]:MDCT values in madlib
by shiyuanyuan 01 Mar '07

01 Mar '07

2 1

how to play cdr file decoded by madlld
by Gang-Ryung Uh 04 Feb '07

04 Feb '07

We installed madlld and decode sample mp3 file into cdr extension. Could you advise us how to play that cdr file on cygwin with window XP? Thanks, __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

1 1

ressources needed
by zelos 414 26 Jan '07

26 Jan '07

Hello, I'm interested in making a mp3 mplayer in c++ with MAD. I was using FMOD which supports much more formats(Ogg, mod, etc) but it is not GPL! Do you know where I can find a doc about MAD API ? I can't even find one!? Thanks a lot. Zelos

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madplay application in uClinux distribution
by Paraskevi D. Kyritsi 19 Jan '07

19 Jan '07

My name is Paraskeyh Kyritsi and I have downloaded madplay-0.15.2b with the libmad-0.15.1b and libid3tag-0.15.1b. I have built all the above in a uClinux distribution kernel version 2.4.x using arm-elf tools. The produced image is being downloaded in a sdram memory and is being played by an arm9 microprocessor with audio output in a Teak DSP core. There seems to be no problem with the debug of the code but...I can't hear the mp3 file being played. I have some debug messages like the below ones: ################################################################### # madplay /storage/moby-flowe210907_8k16b.mp3 DSP ioctl: DSP_PREPARE 20 20 DSP codec internal MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al. We are in the player_run function argc=1 argv[0]=/storage/moby-flowe210907_8k16b.mp3 Initialize audio run the player Run PlayList!!!! is result 0? yes!!! here we are in ---->result = play_all(player) playlist_entry=/storage/moby-flowe210907_8k16b.mp3 Fail reading ID3 tag information result=-1 frames decoded1 3780247555 finish up ######################################################### Well, it's rather difficult situation. I hope there is someone who can test something similar to help me. Regards, Paraskeyh Kyritsi

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Re: mad-dev Digest, Vol 18, Issue 3
by Sayak 17 Jan '07

17 Jan '07

Hi Khalid, If I have understood your problem correctly, you want to extract ID3 tag and if possible Lyrics Tag in MP3 file. For version2(v2), it is stored after the encoded data, to extract it, you have to go at the end of the file. I have done this in my own way. What I did was like this, 1. fseek(pFile, filesize - 10000, SEEK_SET); This 10000 number was arbitrary. To accomodate Lyrics space. But if it is only ID3 tag present in the file, you can reduce this number to a mere 100. 2. fread(pBuffer, 1, 1000, pFile);//Lyrics Tag is also present Otherwise go 10 byte at a time. ststr(pBuffer,"ID3"). If strstr does not work in your compile(possible), go by the stupid process of matching byte by byte. When you found the ID3 tag, extract the information as per the specification of ID3 tag. You have to do this even before start decoding MP3 file. In case of encoding write the information, write the information after encoding is done. <ID3> <FILE> <Artist> </Artist> </FILE> </ID3> In Case of version 1(v1) however ID3 tag is at the beginning of the file. Then you dont have to go at the end of the file. Kind Regards, Sayak ----- Original Message ----- From: <mad-dev-request(a)lists.mars.org> To: <mad-dev(a)lists.mars.org> Sent: Wednesday, January 17, 2007 1:30 AM Subject: mad-dev Digest, Vol 18, Issue 3 > Send mad-dev mailing list submissions to > mad-dev(a)lists.mars.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://www.mars.org/bin/mailman/listinfo/mad-dev > or, via email, send a message with subject or body 'help' to > mad-dev-request(a)lists.mars.org > > You can reach the person managing the list at > mad-dev-owner(a)lists.mars.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of mad-dev digest..." > > > Today's Topics: > > 1. MP3 tag (Khalid Aallouche) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 16 Jan 2007 07:41:19 +0200 > From: Khalid Aallouche <khalid.aallouche(a)tut.fi> > Subject: [mad-dev] MP3 tag > To: mad-dev(a)lists.mars.org > Message-ID: <20070116074119.76hpnvh4pw0cck4o(a)webmail.tut.fi> > Content-Type: text/plain; charset=ISO-8859-15; DelSp="Yes"; > format="flowed" > > Hi all, > > I send you that email because I want to extract the Genre (rock, > salsa...) from the MP3 > file. I have studied libid3tag source code and I don't know how to > perform that. I will > be very grateful if someone can help me. > > In a second step, I want to write tags in an MP3 file (tagg v2).If > someone can tell if > it's possible to do that with libid3tag. > > Thank you for your comprehension > b.r, > Khalid > > > > End of mad-dev Digest, Vol 18, Issue 3 > ************************************** > >

2 1

MP3 tag
by Khalid Aallouche 16 Jan '07

16 Jan '07

Hi all, I send you that email because I want to extract the Genre (rock, salsa...) from the MP3 file. I have studied libid3tag source code and I don't know how to perform that. I will be very grateful if someone can help me. In a second step, I want to write tags in an MP3 file (tagg v2).If someone can tell if it's possible to do that with libid3tag. Thank you for your comprehension b.r, Khalid

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hello : i have problem with MAD decoder that it is giving me errors:
by Shikha Patoria 09 Jan '07

09 Jan '07

hello, i am using mad decoder to decode my MPEG3 file . but every time it is giving me errrors File pointer is at 4671920 decoding error 0x0101 (lost synchronization) decoding error 0x0103 (forbidden bitrate value) decoding error 0x0103 (forbidden bitrate value) decoding error 0x0103 (forbidden bitrate value) decoding error 0x0103 (forbidden bitrate value) decoding error 0x0104 (reserved sample frequency value) decoding error 0x0103 (forbidden bitrate value) decoding error 0x0104 (reserved sample frequency value) decoding error 0x0103 (forbidden bitrate value) decoding error 0x0101 (lost synchronization) decoding error 0x0104 (reserved sample frequency value). presently i am using a buffer of size (8000) ,but when it decodes the1st frame,it gives me error of lost synchronization. it is not able to find that sync bit ................................................................................................................ can any one help me in this problem. shikha ______________________________________________________________________

2 1

(no subject)
by tuhailong5＠sina.com 30 Dec '06

30 Dec '06

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Help me about libMAD
by cooooocat-it＠yahoo.com.cn 08 Dec '06

08 Dec '06

Hi, I just compled the libmad via Microsoft Visual C and added minimad.c to the workspace. But the workspace compiling does not pass because following files unistd.h,sys/stat.h and sys/mman.h which declared in minimad.c don't exsit. Error like this: ========================= Deleting intermediate files and output files for project 'app - Win32 Debug'. --------------------Configuration: app - Win32 Debug-------------------- Compiling... minimad.c e:\libmad-0.15.1b\minimad.c(23) : fatal error C1083: Cannot open include file: 'unistd.h': No such file or directory Error executing cl.exe. app.exe - 1 error(s), 0 warning(s) ========================= So could you tell me what should I do to make the compiling pass ? Also, I want to know how to use the low-level API ? Best regards, CoooooCat --------------------------------- 抢注雅虎免费邮箱-3.5G容量，20M附件！ --------------------------------- 抢注雅虎免费邮箱-3.5G容量，20M附件！

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Help me about libMAD
by cooooocat-it＠yahoo.com.cn 08 Dec '06

08 Dec '06

Dear Håvard, I noticed that you 'currently decoding mp3 files using the minimad mp3-decoder and the high-level API.' in the MAD mailing list. I just compled the libmad and added minimad.c to the workspace to try to decode mp3 song with high-level API mode. But the compiling does not pass because following files unistd.h,sys/stat.h and sys/mman.h which declared in minimad.c don't exsit. So could you tell me what should I do to make the compiling pass ? Also, I want to know how to use the low-level API ? Best regards, CoooooCat --------------------------------- 抢注雅虎免费邮箱-3.5G容量，20M附件！

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float paralell decoding
by Arvid Picciani 04 Dec '06

04 Dec '06

greetings. i am in search for an mp3 float decoder. also i dont want any aditional callback function. is libmad what i want? where can i find some documentaion? greetings, Arvid

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madplay dither algorithm
by Liem Pham Tan 01 Dec '06

01 Dec '06

hi All, I'm new to digital sound engineering. I don't understand the steps involved in madplay's dithering algorithm in audio_linear_dither(). Can anybody give me some clues on this? Does a 32-bit PCM in madplay when dithered to 16-bit output give better sound quality than an original 16-bit decoder? -- Thanks in advance, Liem Pham

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Linker errors in Madplay project: error LNK2019, 2001, unresolved external symbols, in Microsoft Visual Studio 2005 IDE...
by Sridhar Subramanian 29 Oct '06

29 Oct '06

Hello Friends, I am new to this project. I was researching for a mp3 decoder and happen to find mad project, I think this is the right one for me. Thanks for doing this great project, quite complex indeed!. I downloaded the necessary files from sourceforge.net, like,... libid3tag-0.15.1b.tar.gz libmad-0.15.1b.tar.gz madplay-0.15.2b.tar.gz zlib123.zip And opened the project file, madplay.dsw, unfortunately it complained that could not find the zlib1.1.4 project files, so I separately dowloaded the latest zlib123 version from their website. From what I could infer so far is that, 1. zlib and libmad are independent projects with no dependency, zlib is created as Windows DLL project, and libmad as a Static Library project. 2. libid3tag depends upon zlib for compilation and compiles to a static library project. 3. Madplay, compiles to a Win32 Console project and depends upon the 2 static libraries, viz., libid3tag and libmad static libraries. So in Visual Studio I have one solution contains 4 projects, namely libid3tag, libmad, zlib and madplay. I did setup the project-properties with proper "additional include directories" and also added new references for both libid3tag (that depends upon zlib) and madplay (that depends upon libid3tag and libmad). So far zlib, libid3tag and libmad projects compiled successfuly with zero errors, and I could see that their library files are present in their own ./Debug directories. Now I tried to Build the madplay project, but I always get the following linker errors, 58 of them: Build Log Build started: Project: madplay, Configuration: Debug|Win32 Command Lines Creating temporary file "d:\Profiles\sas040\My Documents\Year2006\my_univs\CmpE207_Fall2006\soundfiles\mad_project\madplay-0.15.2b\msvc++\Debug\RSP00000930923260.rsp" with contents [ /OUT:".\Debug/madplay.exe" /INCREMENTAL /LIBPATH:"D:\Profiles\sas040\My Documents\Year2006\my_univs\CmpE207_Fall2006\soundfiles\mad_project\libmad-0.15.1b" /LIBPATH:"D:\Profiles\sas040\My Documents\Year2006\my_univs\CmpE207_Fall2006\soundfiles\mad_project\libid3tag-0.15.1b" /MANIFEST /MANIFESTFILE:".\Debug\madplay.exe.intermediate.manifest" /DEBUG /PDB:".\Debug/madplay.pdb" /SUBSYSTEM:CONSOLE /MACHINE:X86 odbc32.lib odbccp32.lib winmm.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib ".\Debug\audio.obj" ".\Debug\audio_aiff.obj" ".\Debug\audio_cdda.obj" ".\Debug\audio_hex.obj" ".\Debug\audio_null.obj" ".\Debug\audio_raw.obj" ".\Debug\audio_snd.obj" ".\Debug\audio_wave.obj" ".\Debug\audio_win32.obj" ".\Debug\crc.obj" ".\Debug\filter.obj" ".\Debug\getopt.obj" ".\Debug\getopt1.obj" ".\Debug\madplay.obj" ".\Debug\player.obj" ".\Debug\resample.obj" ".\Debug\rgain.obj" ".\Debug\strcasecmp.obj" ".\Debug\strncasecmp.obj" ".\Debug\tag.obj" ".\Debug\version.obj" ".\Debug\madplay.exe.embed.manifest.res" ] Creating command line "link.exe @"d:\Profiles\sas040\My Documents\Year2006\my_univs\CmpE207_Fall2006\soundfiles\mad_project\madplay-0.15.2b\msvc++\Debug\RSP00000930923260.rsp" /NOLOGO /ERRORREPORT:PROMPT" Output Window Linking... filter.obj : error LNK2019: unresolved external symbol _mad_timer_fraction referenced in function _fadein_filter player.obj : error LNK2001: unresolved external symbol _mad_timer_fraction filter.obj : error LNK2019: unresolved external symbol _mad_timer_set referenced in function _fadein_filter madplay.obj : error LNK2001: unresolved external symbol _mad_timer_set player.obj : error LNK2001: unresolved external symbol _mad_timer_set filter.obj : error LNK2019: unresolved external symbol _mad_timer_count referenced in function _fadein_filter player.obj : error LNK2001: unresolved external symbol _mad_timer_count filter.obj : error LNK2019: unresolved external symbol _mad_timer_negate referenced in function _fadein_filter madplay.obj : error LNK2001: unresolved external symbol _mad_timer_negate player.obj : error LNK2001: unresolved external symbol _mad_timer_negate filter.obj : error LNK2019: unresolved external symbol _mad_timer_add referenced in function _fadein_filter madplay.obj : error LNK2001: unresolved external symbol _mad_timer_add player.obj : error LNK2001: unresolved external symbol _mad_timer_add filter.obj : error LNK2019: unresolved external symbol _mad_timer_compare referenced in function _fadein_filter madplay.obj : error LNK2001: unresolved external symbol _mad_timer_compare player.obj : error LNK2001: unresolved external symbol _mad_timer_compare madplay.obj : error LNK2001: unresolved external symbol _mad_timer_zero player.obj : error LNK2001: unresolved external symbol _mad_timer_zero player.obj : error LNK2019: unresolved external symbol _mad_timer_abs referenced in function _player_run player.obj : error LNK2019: unresolved external symbol _mad_timer_string referenced in function _play_one player.obj : error LNK2019: unresolved external symbol _id3_file_close referenced in function _play_one player.obj : error LNK2019: unresolved external symbol _id3_file_tag referenced in function _play_one player.obj : error LNK2019: unresolved external symbol _id3_file_fdopen referenced in function _play_one player.obj : error LNK2019: unresolved external symbol _mad_bit_read referenced in function _process_id3 rgain.obj : error LNK2001: unresolved external symbol _mad_bit_read tag.obj : error LNK2001: unresolved external symbol _mad_bit_read player.obj : error LNK2019: unresolved external symbol _mad_bit_init referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_field_getbinarydata referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_field_getlatin1 referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_ucs4_latin1duplicate referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_field_getstrings referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_field_getnstrings referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_frame_field referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_tag_findframe referenced in function _process_id3 player.obj : error LNK2019: unresolved external symbol _id3_field_getfullstring referenced in function _show_id3 player.obj : error LNK2019: unresolved external symbol _id3_field_getstring referenced in function _show_id3 player.obj : error LNK2019: unresolved external symbol _id3_genre_name referenced in function _show_id3 player.obj : error LNK2019: unresolved external symbol _mad_decoder_finish referenced in function _decode player.obj : error LNK2019: unresolved external symbol _mad_decoder_run referenced in function _decode player.obj : error LNK2019: unresolved external symbol _mad_decoder_init referenced in function _decode player.obj : error LNK2019: unresolved external symbol _mad_stream_buffer referenced in function _decode_input_read player.obj : error LNK2019: unresolved external symbol _mad_timer_multiply referenced in function _decode_filter player.obj : error LNK2019: unresolved external symbol _mad_frame_mute referenced in function _decode_error player.obj : error LNK2019: unresolved external symbol _mad_stream_errorstr referenced in function _decode_error player.obj : error LNK2019: unresolved external symbol _mad_stream_skip referenced in function _decode_error player.obj : error LNK2019: unresolved external symbol _id3_tag_delete referenced in function _decode_error player.obj : error LNK2019: unresolved external symbol _id3_tag_query referenced in function _decode_error player.obj : error LNK2019: unresolved external symbol _id3_tag_parse referenced in function _get_id3 resample.obj : error LNK2019: unresolved external symbol _mad_f_div referenced in function _resample_init tag.obj : error LNK2019: unresolved external symbol _mad_bit_skip referenced in function _tag_parse tag.obj : error LNK2019: unresolved external symbol _mad_bit_nextbyte referenced in function _parse_lame version.obj : error LNK2001: unresolved external symbol _id3_build version.obj : error LNK2001: unresolved external symbol _id3_copyright version.obj : error LNK2001: unresolved external symbol _id3_version version.obj : error LNK2001: unresolved external symbol _mad_build version.obj : error LNK2001: unresolved external symbol _mad_copyright version.obj : error LNK2001: unresolved external symbol _mad_version .\Debug/madplay.exe : fatal error LNK1120: 44 unresolved externals Results Build log was saved at "file://d:\Profiles\sas040\My Documents\Year2006\my_univs\CmpE207_Fall2006\soundfiles\mad_project\madplay-0.15.2b\msvc++\Debug\BuildLog.htm" madplay - 58 error(s), 0 warning(s) I don't know what I am doing wrong. Please help me to solve the problem. Your time and help is greatly appreciated. If you like to see all the files, I can zip them up and send to you. Thanks and Regards, S.Sridhar. Sunday, 29/Octobler/2006. --------------------------------- Want to start your own business? Learn how on Yahoo! Small Business.

1 0

libmad on TI c55x DSP
by James Crocker 25 Oct '06

25 Oct '06

Can I get that code too Jim

1 0

DSP or FPGA MPEG1 Layer 2 IP
by James Crocker 25 Oct '06

25 Oct '06

Hi all, Has any one ported mad to a DSP or FPGA? I need a MPEG 1 Layer 2 IP core I can add to a new design. Can you send me the source code and tell me what chip its designed for? Thanks Jim Jim James D. Crocker Electrical Engineer Global Microwave Systems 1916 Palomar Oaks Way, Suite 100 Carlsbad, CA 92008 (760) 496-0055 FAX (760) 496-0057 <blocked::http://www.gmsinc.com/> <blocked::http://www.allieddefensegroup.com/home.html>

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Problem importing certain MP2 files
by Markus Meyer 19 Oct '06

19 Oct '06

Hi, I'm a developer of Audacity [1] and we use libmad to import MP2/MP3 files. While it generally works fine (thanks a bunch for the great library!) there are some MP2 files libmad does not import (see [2] for an example, about 4.4 MB). When trying to play this file with madplay 0.15.2 on Ubuntu, the following output is given: markus@markus:~$ madplay nb00.mp2 MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al. error: frame 0: bad bitrate/mode combination 0 frames decoded (0:00:00,0), -inf dB peak amplitude, 0 clipped samples The file does play fine with mplayer, though. Thanks for any response! Markus [1] http://audacity.sourceforge.net/ [2] http://www.mesw.de/opensource/nb00.mp2

2 4

Segmentation fauls because libmad doesn't check for buffer overflows
by mad＠zacglen.com 19 Oct '06

19 Oct '06

On a couple of occasions I have found that libmad (v0.15.0b) generates segmentation errors because it doesn't really bother checking whether the end of buffer has been reached. That is a real worry, because one of the first thing one usually does when writing robust code is ensure that wherever a pointer is used it is never allowed to go beyond available data. Look at function mad_layer_II() for example. Here we have a "struct mad_stream" containing "buffer", "bufend", and "ptr" pointers. Then just a few lines later, about line 382, we have the following code: for (ch = 0; ch < nch; ++ch) allocation[ch][sb] = mad_bit_read(&stream->ptr, nbal); Unbelievably just the ptr is passed to mad_bit_read(). This means that mad_bit_read() can, and sometimes does, increment the "ptr" beyond "bufend". This is really lame code, if you'll excuse the pun. Somebody should run some tests that pass randomly corrupted packets to libmad and catch all of the segmentation faults that libmad will generate. One solution to above problem would be to created a bufend ptr in struct mad_bitptr (ie. mad_bit_init() should be passed buffer and bufend). Or just rationalize lots of the code by joining buffer/bufend into a new struct and never using a anything but that struct everywhere. MAD.

3 5

Porting 32 bit MAD play onto 16 bit fixed point DSP for OMAP5912
by Prathibha V 13 Oct '06

13 Oct '06

Hi, I am trying to port MAD play on OMAP 5912 board for TMS320C55XX DSP. Can any one send me the implementation details of how to port the 32 bit fixed point MAD play(which is able to run on ARM926EJ-S) to 16 bit fixed point DSP (TMS320C55XX)? Thanks & Regards Prathibha.V

1 0

bad main-data-begin pointer?
by Matt Robbins 12 Oct '06

12 Oct '06

Hi, I am using libmad to handle mp3 access for my project ( www.xbat.org ). Our particular application requires fast, accurate seeking, and I have been successful in using header information to seek to the correct frame. I am having trouble, though when I set the decoder (from the "high-level" API) running. For many files it works fine, but for some, I get "bad main-data-begin pointer" errors for the first one or two frames decoded. Right now, I am circumventing the problem through the use of the MAD_FLOW_IGNORE symbol in the error callback function, but this results in the somewhat-undesirable behavior of decoding zeros for the first several frames. Is there a way around this, short of deliberately seeking several frames early and then discarding the unneeded data? Might this have something to do with bit reservoir encoding? Any help would be much appreciated. Thanks, Matt Matt Robbins Developer XBAT - www.xbat.org

2 1

mad on dsp
by Prathibha V 12 Oct '06

12 Oct '06

Hi, I am trying to port MAD library to omap 5912 kit, which is 16-bit fixed-point DSP (TMS320C55x DSP). Would you please send me the implementation details?Since mad is 32 bit fixed point,how do I port it on 16 bit fixed point dsp?Will you please send the details regarding this issue? Thanks & Regards Prathibha.V

1 0

libmad on TI c55x DSP
by Andrei Jalba 04 Oct '06

04 Oct '06

Hi, Did anybody port libmad to TI's c55x DSP ? If yes, is there any source code available ? Thanks in advance. Cheers, Andrei

2 1

madplay-0.15.2b acting crazy on OSX 10.4
by wind 02 Oct '06

02 Oct '06

Hello, I have downloaded the latest versions of madplay, libmad and libid3tag. I had to rename the wait() routine in the audio_carbon.c otherwise I was getting conflicts against the sys/wait.h. After that everything built, but madplay is acting absolutely crazy. I gave it an aiff file to play and all I get is gibberish. I gave it a simple wave file to play and this is what I get: [ukiel:/MP3/madplay-0.15.2b] wind% madplay simpsn03.wav MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al. error: frame 0: lost synchronization 0 frames decoded (0:00:00.0), -inf dB peak amplitude, 0 clipped samples There is no sound at all. Now this file plays fine in VLC, Itunes and such, no problems. This is what I get when I feed an Apple aiff file through: [ukiel:/MP3/madplay-0.15.2b] wind% madplay greidernii_kovsh.aif MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al. error: frame 0: lost synchronization error: frame 2: CRC check failed error: frame 3: CRC check failed error: frame 4: CRC check failed error: frame 5: CRC check failed error: frame 6: CRC check failed error: frame 7: CRC check failed error: frame 8: CRC check failed error: frame 9: CRC check failed error: frame 10: CRC check failed error: frame 11: CRC check failed error: frame 12: CRC check failed error: frame 13: CRC check failed error: frame 14: CRC check failed error: frame 15: CRC check failed error: frame 16: CRC check failed error: frame 17: CRC check failed error: frame 18: CRC check failed error: frame 19: CRC check failed error: frame 20: CRC check failed error: frame 21: CRC check failed error: frame 22: CRC check failed error: frame 23: CRC check failed error: frame 24: CRC check failed error: frame 25: CRC check failed ...... This continues on and on, after a while sound starts coming out, but it's just scrambled garbage. Has anyone managed to successfully run this thing on OSX 10.4? I have a PowerMac G4 dual processor computer, plenty of memory and nothing strange and heinous installed besides a bunch of FORTRAN compilers. I.e. no other sound libraries or anything like that, so there is really nothing for madplay to be fighting with. TIA, -- Gala Gala Wind (301) 614-6221 wind(a)climate.gsfc.nasa.gov Code 613.2, Climate and Radiation SSAI, Inc. NASA/GSFC Greenbelt, MD 20771 /*-------------------------------------------------------------------- -- There's always a way, you just have to find it. ( B. Hambly "Children of the Jedi" ) ----------------------------------------------------------------------*/

2 1

Question regarding library cababilities (32kbps/22khz)
by Matthew Twomey 21 Aug '06

21 Aug '06

Greetings, I am attempting to use the Mad library to decode 32kbps/22khz streams. I'm having difficulty however with the output being too fast (e.g. it seems about twice as fast). I'm not sure if this is related to the library at all - but I can't seem to find a definitive answer as to if this library supports lower sample rates. From glancing through the code it appears to, but I have also seen a couple of posts elsewhere that state that libmad does not support 22khz streams. Can someone please confirm this one way or another for me? Thanks, -Matt

2 2

Madlib running very slow on PocketPC
by Swapnil Wagle 11 Aug '06

11 Aug '06

Hi, I am trying to compile Madlib on PocketPC platform. The codec got compiled but the decompression is very slow. I am trying to compile it with FPM_ARM, but VS2005 doesnt recognize the assembly commands then. I am not sure whether this is the solution or I am doing something wrong. Can u please help me out with this. I am not getting how to execute madlib at ARM speed. Regards, Swapnil

1 0

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