mad-dev October 2006

mad-dev@lists.mars.org

11 participants
11 discussions

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

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>

1 0

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

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

mad-dev October 2006