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Bug 86309 - ac3 is broken in mplayer-1.0_pre6-r2
Summary: ac3 is broken in mplayer-1.0_pre6-r2
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: High normal
Assignee: Gentoo Media-video project
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-03-22 14:00 UTC by Ginsu
Modified: 2005-07-07 00:10 UTC (History)
5 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description Ginsu 2005-03-22 14:00:58 UTC
Movie files encoded with ac3 audio play fine in mplayer-1.0_pre6-r1 but once I upgrade to -r2 I get no audio.

Reproducible: Always
Steps to Reproduce:
1. emerge mplayer-1.0_pre6-r2
2. play a video with ac3 audio
3.

Actual Results:  
No sound

Expected Results:  
There should be sound.
Comment 1 Lukas Turek 2005-03-22 18:06:29 UTC
I can confirm this, AC3 audio doesn't work with both ac3 and a52 codecs. No error, just digital silence.


==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
No accelerated IMDCT transform found
AC3: 5.1 (3f+2r+lfe)  48000 Hz  448.0 kbit/s
No accelerated resampler found
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================


Portage 2.0.51.19 (default-linux/x86/2005.0, gcc-3.3.5, glibc-2.3.4.20041102-r1, 2.6.11-gentoo-r4 i686)
=================================================================
System uname: 2.6.11-gentoo-r4 i686 AMD Athlon(tm) XP 2500+
Gentoo Base System version 1.4.16
Python:              dev-lang/python-2.3.4-r1 [2.3.4 (#1, Feb 11 2005, 06:28:21)]
dev-lang/python:     2.3.4-r1
sys-devel/autoconf:  2.13, 2.59-r6
sys-devel/automake:  1.5, 1.7.9-r1, 1.6.3, 1.4_p6, 1.9.4, 1.8.5-r3
sys-devel/binutils:  2.15.92.0.2-r1
sys-devel/libtool:   1.5.10-r4
virtual/os-headers:  2.6.8.1-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CFLAGS="-O3 -march=athlon-xp -pipe -fomit-frame-pointer"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O3 -march=athlon-xp -pipe -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms"
GENTOO_MIRRORS="http://ftp.du.se/pub/os/gentoo http://ftp.ntua.gr/pub/linux/gentoo/"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowext X alsa apm arts avi berkdb bitmap-fonts cdr crypt cups curl emboss encode fam fbcon flac foomaticdb gdbm gif gpm gtk2 imagemagick imlib jpeg kde libg++ libwww mad mikmod mmx mmxext mp3 mpeg ncurses nls oggvorbis opengl pam perl png qt quicktime readline real samba sdl slang spell sse ssl tcpd tiff truetype truetype-fonts type1-fonts unicode xml2 xv xvid zlib"
Unset:  ASFLAGS, CBUILD, CTARGET, LANG, LC_ALL, LDFLAGS
Comment 2 Andrej Kacian (RETIRED) gentoo-dev 2005-03-22 18:09:42 UTC
Downgrading to -r1 helped.
Comment 3 Rafal Dejewski 2005-03-30 03:02:29 UTC
Commenting out stuff titled "fixed -fPIC handling" and the pic patch helped as well.
Comment 4 Jan Brinkmann (RETIRED) gentoo-dev 2005-05-05 09:03:52 UTC
what about newer version in the tree?
Comment 5 Aris Adamantiadis 2005-05-19 07:43:55 UTC
media-video/mplayer-1.0_pre7 has same problems.
I am unable to watch a dvd correctly. If i start mplayer with -ao oss :

Checking audio filter chain for 48000Hz/2ch/ac3 -> 48000Hz/2ch/ac3...
AF_pre: 48000Hz/2ch/ac3
[AO OSS] Can't set audio device /dev/dsp to ac3 output, trying s16le...
AO: [oss] 48000Hz 2ch s16le (2 bps)
Building audio filter chain for 48000Hz/2ch/ac3 -> 48000Hz/2ch/s16le...
[format] Sample format big-endian AC3 not yet supported 
[libaf] Reinitialization did not work, audio filter 'format' returned error code -2
Couldn't find matching filter/ao format!

and then I get strange noises
with -ao alsa:
Checking audio filter chain for 48000Hz/2ch/ac3 -> 48000Hz/2ch/ac3...
AF_pre: 48000Hz/2ch/ac3
alsa-init: 1 soundcard found, using: iec958:{CARD 0 AES0 0x02 AES1 0x82 AES2
0x00 AES3 0x02}
ALSA lib setup.c:548:(add_elem) Cannot obtain info for CTL elem (MIXER,'IEC958
Playback AC97-SPSA',0,0,0): No such file or directory
alsa-init: playback open error: No such file or directory
Could not open/initialize audio device -> no sound.
Audio: no sound

and it's silent
Comment 6 Alexandru Toma 2005-05-19 07:52:56 UTC
Does mplayer-1.0_pre6-r4 (which is currently marked stable) have this problem?
Comment 7 Ginsu 2005-05-19 13:54:43 UTC
I have no problem watching avi files encoded with AC3 with pre7.
Comment 8 Ginsu 2005-07-07 00:10:29 UTC
works fine now.