[vlc-devel] playing AC3 audio files

Thu Dec 3 08:31:28 CET 2009

From: mohameeed2010 at hotmail.com
To: vlc-devel at videolan.org
Date: Thu, 3 Dec 2009 06:47:45 +0000
Subject: Re: [vlc-devel] playing AC3 audio files

> To: vlc-devel at videolan.org
> Date: Wed, 2 Dec 2009 16:47:31 +0100
> From: remi at remlab.net
> Subject: Re: [vlc-devel] playing AC3 audio files
> 
> 
> On Wed, 2 Dec 2009 14:00:53 +0000, Mohamed AbdElwahed
> <mohameeed2010 at hotmail.com> wrote:
> > i cross-compiled(to ARM) liba52 and link it with VLC (which also
> > cross-compiled to ARM) but when i try to play AC3 audio files. the heared
> > sound is not clear and it seems like it contains noise beside the
> original
> > sound. also VLC report this message at run time "No accelerated IMDCT
> > transform found". i googled and know that this message related to a fast
> > fourier transform library(djbfft-0.76.tar.gz) that useful for pentium
> > processors and i thing i does not need it, AM I right !
> > any help is highly appreciated.
> 
> Make sure you compiled both liba52 and the VLC a52 pl ugin in fixed-point
> mode.
> 
> If those are mismatched, you will get horrible background noise. And if
> both are floating point, you will get horrible CPU slowness.
> 
> -- 
> Rémi Denis-Courmont
> 
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 After reading your e-mail again i tryed below command
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Many Thanks for your kind response
the command used to configure liba52 as below:-
------------------------------------------------------------------------
./configure --target=arm-linux --host=arm-linux --prefix=/ESDU/Wasiem/filesys/Task9_Mohamed/liba52/Installation_path CC="/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/bin/arm_v5t_le-gcc"  --disable-double 
-------------------------------------------------------------------------------------------------------------
the command used to configure vlc as below :-
-------------------------------------------------------------------------------------------------
./configure --target=arm-linux --host=arm-linux --prefix=/ESDU/Mohamed/vlc_Binaries CC="/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/bin/arm_v5t_le-gcc" LDFLAGS="-L/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/target/usr/lib" CFLAGS="-O3 -mlittle-endian -march=armv5t -mtune=arm9tdmi -nostdinc -I/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/target/usr/include -I/opt/mv_pro_4.0/montavista/pro/devkit/arm/v5t_le/lib/gcc/armv5tl-montavista-linuxeabi/3.4.3/include" --enable-ffmpeg --with-ffmpeg-tree=/ESDU/Wasiem/filesys/Task9_Mohamed/0_Original_scr_from_Internet/ffmpeg --enable-faad --with-faad-tree=/ESDU/Wasiem/filesys/Task9_Mohamed/faad_Library/faad2-2.7/ --enable-static --enable-shared --enable-oss --enable-fb --enable-release --enable-optimization --e nable-altivec --disable-hal --disable-altivec --disable-httpd --disable-vlm --disable-growl --disable-dvdnav --disable-smb --disable-gnomevfs --disable-libcdio --disable-libcddb --disable-cdda --disable-cddax --disable-v
 c d --disable-ogg --disable-mkv --disable-mad --disable-quicktime --enable-a52 --with-a52=/ESDU/Wasiem/filesys/Task9_Mohamed/liba52/a52dec-0.7.4/ --with-a52-tree=/ESDU/Wasiem/filesys/Task9_Mohamed/liba52/a52dec-0.7.4/ --with-a52-fixed --disable-dts --disable-vorbis --disable-speex --disable-png --disable-cmml --disable-x11 --disable-xvideo --disable-glx --disable-xinerama --disable-opengl --disable-sdl --disable-freetype --disable-fribidi --disable-libxml2 --disable-hd1000v --disable-directx --disable-wingdi --disable-alsa --disable-waveout --disable-macosx-audio --disable-hd1000a -disable-wxwidgets --disable-macosx --disable-qnx --disable-visual --disable-daap --disable-bonjour --disable-gnutls --disable-activex --disable-skins2 --disable-mozilla --disable-sout --disable-mod --disable-mpc --disable-libmpeg2 --disable-x264 --disable-notify --disable-mostly-builtin --disable-x264 --disable-screen --disable-dvbpsi --disable-joystick --disable-access_output_dummy --disable-acce
 ss _output_file --disable-access_output_http --disable-access_output_shout --disable-access_output_udp --disable-access_output_realrtsp --disable-access_output_smb --disable-access_output_tcp --disable-access_output_udp --disable-xvideo --disable-xtag --disable-xosd --disable-xml --disable-x11 --disable-wall --disable-vout_sdl --disable-vout_directx --disable-visual --disable-vcdx --disable-vcd --disable-v4l --disable-qte --disable-qte_main --disable-quicktime --disable-real --disable-sdl_image --disable-osdmenu --disable-opengl --disable-ntservice --disable-nsc --disable-mux_mp4 --disable-mp4 --disable-gtk_main --disable-gtk2_ma in --disable-galaktos --disable-dvdnav --disable-dvd --disable-dvdsub --disable-dvb --disable-dshow --disable-beos --disable-bonjour --disable-caca --disable-cdda --disable-cddax --disable-cinepak --disable-cmml --disable-corba --disable-cvdsub --disable-daap --disable-dirac --disable-dmo --disable-hotkeys --disable-hd1000v --disable-fake --disable-
 gapi --disable-ggi --disable-glide --disable-glwin32 --disable-glx --disable-gnome2_main --disable-gnome_main --disable-guntls --disable-goom --disable-growl --disable-image --disable-ipv4 --disable-ipv6 --disable-jack --disable-libmpeg2 --disable-livedotcom --disable-logo --disable-lpcm --disable-macosx --disable-magnify --disable-mga --disable-mjpeg --disable-mux_asf --disable-mux_avi --disable-access_ftp --disable-ftp --disable-access_http --disable-access_mms --disable-access_output_dummy --disable-http --disable-access_tcp --disable-rtcp --disable-access_output_udp --disable-access_udp --disable-access_filter_record --disable -dummy --disable-mux_dummy --disable-spdif_mixer --disable-stream_out_dummy --disable-access_output_dummy --disable-dvbsub --disable-flacdec --disable-subsdec --disable-svcdsub --disable-telnet --disable-upnp_intel --disable-upnp_cc --disable-spudec --disable-gestures --disable-netsync --disable-showintf --disable-flac --disable-flacdec --disable-m
 jpeg --disable-mux_mpjpeg --disable-nsv --disable-nuv --disable-ps --disable-mux_ps --disable-pva --disable-rawdv --disable-access_realrtsp --disable-realaudio --disable-sgimb --disable-subtitle --disable-ty --disable-freetype --disable-vobsub --disable-voc --disable-xa --disable-asf --disable-avi --disable-mpga --disable-mpgv --disable-screensaver --disable-podcast --disable-sap --disable-shout --disable-access_output_shout --disable-blend --disable-clone --disable-crop --disable-marq --disable-time --disable-rv32
------------------------------------------------------------------------------------------------------------------- -------

Is there any mismatching, what to do? 
thanks in advance

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