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682 discussions

mad chokes on a mp3
by Bartosch Pixa 06 Dec '02

06 Dec '02

Hi i have a mp3 that isn't playable with madplay but other players play it just fine, it's on gstreamer.net/media/11_-_Melodie.mp3. here's the madplay output: $ madplay music/Noir\ OST\ VICL-60737\ \[320\ kbps\]/11\ -\ Melodie.mp3 MPEG Audio Decoder 0.14.2 (beta) - Copyright (C) 2000-2001 Robert Leslie Title: Melodie Album: NOIR OST1 Track: 11 error: frame 0: CRC check failed error: frame 2: forbidden bit allocation value error: frame 3: CRC check failed error: … [View More]frame 5: CRC check failed error: frame 6: forbidden bit allocation value error: frame 7: CRC check failed error: frame 8: CRC check failed error: frame 9: forbidden bit allocation value error: frame 10: forbidden bit allocation value error: frame 11: forbidden bit allocation value error: frame 12: forbidden bit allocation value error: frame 13: forbidden bit allocation value error: frame 15: forbidden bit allocation value error: frame 16: CRC check failed error: frame 18: CRC check failed error: frame 19: CRC check failed output: no channel selected for dual channel; using first error: frame 20: CRC check failed error: frame 21: CRC check failed error: frame 22: CRC check failed error: frame 23: forbidden bit allocation value error: frame 24: bad big_values count error: frame 25: forbidden bit allocation value error: frame 26: CRC check failed error: frame 27: CRC check failed error: frame 28: CRC check failed error: frame 29: forbidden bit allocation value error: frame 30: lost synchronization error: frame 31: forbidden bit allocation value error: frame 32: forbidden bit allocation value error: frame 33: CRC check failed error: frame 34: CRC check failed error: frame 35: bad scalefactor index error: frame 36: forbidden bit allocation value error: frame 37: forbidden bit allocation value error: frame 38: CRC check failed error: frame 39: CRC check failed error: frame 40: CRC check failed error: frame 41: CRC check failed error: frame 42: CRC check failed error: frame 43: CRC check failed error: frame 44: CRC check failed error: frame 45: forbidden bit allocation value error: frame 46: forbidden bit allocation value error: frame 47: forbidden bit allocation value error: frame 48: forbidden bit allocation value error: frame 49: forbidden bit allocation value error: frame 50: forbidden bit allocation value error: frame 51: forbidden bit allocation value error: frame 52: forbidden bit allocation value error: frame 53: forbidden bit allocation value error: frame 54: lost synchronization error: frame 55: CRC check failed error: frame 56: forbidden bit allocation value error: frame 57: bad scalefactor index and so on... if you guys need more info just let me know :) [View Less]

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(no subject)
by dellario＠attbi.com 04 Dec '02

04 Dec '02

I need MAD to decode in chunks, with an arbitrary amount of time between the decoding of each chunk (e.g. I decode the first 50000 samples and then a second later I decode the next 50000 samples), and I'm running into the problem of MAD losing syncronization as I begin to decode each chunk, resulting in the loss of several frames each time. Can anybody help me?

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RE: Configuration problem?
by Chris & Amanda Dellario 22 Nov '02

22 Nov '02

The problem that I've been having doesn't have to do with configuration. Here's the issue: in my codebase, the project's properties show warnings as errors. Because of this, I was forced to make several minor modifications to MAD, such as castings to resolve the possible loss of data and signed/unsigned mismatches (see list below). I just returned to a fresh version of MAD and recompiled without the "Warnings as errors" checkbox being set, and it's now running fine. Unfortunately, I don't think … [View More]I'm going to be able to convince my teammates to turn that checkbox off for the rest of the codebase. Has anybody else tried compiling libmad using strict compiler settings? Following is the list of warnings that results if you attempt to compile libmad using strict settings. I didn't include my list of changes for fear of making this note a mile long, but if anybody wants to see them I'll be happy to post them. frame.c(222) : error C2220: warning treated as error - no object file generated frame.c(222) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data frame.c(315) : warning C4018: '<' : signed/unsigned mismatch frame.c(399) : warning C4018: '>' : signed/unsigned mismatch layer12.c(164) : error C2220: warning treated as error - no object file generated layer12.c(164) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer12.c(375) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer12.c(382) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer12.c(390) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer12.c(413) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer12.c(423) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer12.c(428) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(527) : error C2220: warning treated as error - no object file generated layer3.c(527) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(536) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data layer3.c(537) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data layer3.c(538) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data layer3.c(539) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data layer3.c(550) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(567) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(574) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(580) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(582) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(583) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(648) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(732) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(736) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(749) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(758) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(767) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(776) : warning C4244: '=' : conversion from 'unsigned long ' to 'unsigned char ', possible loss of data layer3.c(1056) : warning C4018: '<' : signed/unsigned mismatch layer3.c(1091) : warning C4018: '<' : signed/unsigned mismatch synth.c(599) : error C2220: warning treated as error - no object file generated synth.c(599) : warning C4146: unary minus operator applied to unsigned type, result still unsigned synth.c(630) : warning C4146: unary minus operator applied to unsigned type, result still unsigned synth.c(736) : warning C4146: unary minus operator applied to unsigned type, result still unsigned synth.c(768) : warning C4146: unary minus operator applied to unsigned type, result still unsigned All best, Chris Dellario [View Less]

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Configuration problem?
by Chris & Amanda Dellario 22 Nov '02

22 Nov '02

I've discovered madlld and begun using it to try and learn libmad's low-level api, but I'm having some problems. When I run madlld, most of the frames fail with recoverable errors, and the total output is very small. For example, an mp3 that is 4937K in size is resulting in a decoded version that is only 221K, with only 49 frames decoded. Almost all of the other frames fail with the recoverable error of "Huffman data overrun." I'm guessing that my MAD configuration is to blame, but I'm new … [View More]

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libmad using MSVC 6
by Chris & Amanda Dellario 22 Nov '02

22 Nov '02

I'm working on integrating libmad with a game engine, and I've got a few questions. I'm new to MAD and mp3 decoding in general, so I apologize in advance for any newbie questions. In scanning through the mad-dev archives, I read that FPM_DEFAULT produces slow and not very accurate decoding whereas FPM_INTEL is fast and accurate, but the provided msvc project file uses FPM_DEFAULT. Is this because FPM_INTEL assumes gcc and uses gcc-specific extensions? Is there any way to use something … [View More]

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Frame length
by Russell O'Connor 17 Nov '02

17 Nov '02

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 [To: mad-dev(a)lists.mars.org] What is the maximum length of an MPEG audio (MP3) frame? - -- Russell O'Connor <http://www.math.berkeley.edu/~roconnor/> ``[Law enforcement officials] suggested that the activists were stopped not because their names are on the list, but because their names resemble those of suspected criminals or terrorists.'' -- SFGate.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (SunOS) Comment: For … [View More]

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how to quickly find out ID3 tag
by Jane Zhao 14 Nov '02

14 Nov '02

I want to quickly scan an Mp3 file and get its song name, artist etc info before playing. For ID3tag V1, I can search from the file beginning and end. For tags of other version, is there a good way to find them without actually decoding? Thanks. -Jane __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site http://webhosting.yahoo.com

2 1

Clear input buffer with high-level API?
by Eric Lyons 12 Nov '02

12 Nov '02

Hi, Rob (and all). I'm trying to figure out how to tell the decoding process to flush the input buffer after a MAD_FLOW_STOP is returned from decode_input_read (in madplay.c). It stops playing fine, but when I decode() again, it picks up from where it left off in the buffer. I want to retain this behavior too, but also have the ability to kill the current buffer when it restarts. Is this not possible with the high-level API? Perhaps I can add a MAD_FLOW_FLUSH? Eric. … [View More]

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Statically linking madplay
by umar＠audioramp.com 12 Nov '02

12 Nov '02

Hi, I have been trying to statically link madplay but with no success. I set LDFLAGS to --static in the Makefile but when I run the file command, it informs me that there are still shared library dependencies. Can someone advise how to modify the Makefile so madplay would be a monolithic, statically linked app? I have run out of ideas. Thanks. UQ

3 2

test if file is mp3
by Sebastian Trueg 08 Nov '02

08 Nov '02

Hy list, is there a good and fast way to test if a file actually is a mp3 file or not? My attempts with decoding some bytes at the beginning of the file do not work... Thanx for help. Cheers, Sebastian

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