Package: vlc
Version: 0.8.6.e-1
Severity: normal
Tags: patch
Hi,
VLC only plays without audio when using the pulse alsa plugin. When i looked
into this it seems that VLC requests quite a big buffer. Which is ofcourse
fine. Pulseaudio allows such a big buffer and will start playing when the
requested buffer is nearly full.
What this means is that untill the buffer is full the reported latency will
obviously increase. Unfortunately it seems that the latency of a full buffer
is so big that VLC thinks something is wrong and starts playing without
audio.
Changing the buffer size of 256 periods to 16 periods seems to fix this
issue. (Somewhat of a workaround but still)
Sjoerd
-- System Information:
Debian Release: lenny/sid
APT prefers oldstable
APT policy: (500, 'oldstable'), (500, 'unstable'), (500, 'testing'), (101,
'experimental')
Architecture: powerpc (ppc)
Kernel: Linux 2.6.24-1-powerpc
Locale: LANG=C, LC_CTYPE=nl_NL (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/dash
Versions of packages vlc depends on:
ii libaa1 1.4p5-35 ascii art library
ii libatk1.0-0 1.22.0-1 The ATK accessibility toolkit
ii libc6 2.7-9 GNU C Library: Shared libraries
ii libcaca0 0.99.beta13b-4 colour ASCII art library
ii libcairo2 1.4.14-1 The Cairo 2D vector graphics libra
ii libcdio7 0.78.2+dfsg1-2.1 library to read and control CD-ROM
ii libcucul0 0.99.beta13b-4 low-level Unicode character drawin
ii libdbus-1-3 1.1.20-1 simple interprocess messaging syst
ii libdbus-glib-1-2 0.74-1 simple interprocess messaging syst
ii libfreetype6 2.3.5-1 FreeType 2 font engine, shared lib
ii libfribidi0 0.10.9-1 Free Implementation of the Unicode
ii libgcc1 1:4.3.0-2 GCC support library
ii libgl1-mesa-glx [libgl 7.0.3~rc2-1 A free implementation of the OpenG
ii libglib2.0-0 2.16.1-2 The GLib library of C routines
ii libglu1-mesa [libglu1] 7.0.3~rc2-1 The OpenGL utility library (GLU)
ii libgtk2.0-0 2.12.9-2 The GTK+ graphical user interface
ii libice6 2:1.0.4-1 X11 Inter-Client Exchange library
ii libiso9660-5 0.78.2+dfsg1-2.1 library to work with ISO9660 files
ii libjpeg62 6b-14 The Independent JPEG Group's JPEG
ii libnotify1 [libnotify1 0.4.4-3 sends desktop notifications to a n
ii libpango1.0-0 1.20.0-1 Layout and rendering of internatio
ii libpng12-0 1.2.15~beta5-3 PNG library - runtime
ii libsdl-image1.2 1.2.6-3 image loading library for Simple D
ii libsdl1.2debian 1.2.13-2 Simple DirectMedia Layer
ii libsm6 2:1.0.3-1+b1 X11 Session Management library
ii libstdc++6 4.3.0-2 The GNU Standard C++ Library v3
ii libtar 1.2.11-4 C library for manipulating tar arc
ii libtiff4 3.8.2-7 Tag Image File Format (TIFF) libra
ii libvcdinfo0 0.7.23-4 library to extract information fro
ii libvlc0 0.8.6.e-1 multimedia player and streamer lib
ii libwxbase2.6-0 2.6.3.2.2-2 wxBase library (runtime) - non-GUI
ii libwxgtk2.6-0 2.6.3.2.2-2 wxWidgets Cross-platform C++ GUI t
ii libx11-6 2:1.0.3-7 X11 client-side library
ii libxext6 2:1.0.4-1 X11 miscellaneous extension librar
ii libxinerama1 2:1.0.3-1 X11 Xinerama extension library
ii libxosd2 2.2.14-1.5 X On-Screen Display library - runt
ii libxv1 2:1.0.4-1 X11 Video extension library
ii ttf-dejavu-core 2.24-2 Vera font family derivate with add
ii vlc-nox 0.8.6.e-1 multimedia player and streamer (wi
ii zlib1g 1:1.2.3.3.dfsg-11 compression library - runtime
vlc recommends no packages.
-- no debconf information
--- vlc-0.8.6.e.orig/modules/audio_output/alsa.c
+++ vlc-0.8.6.e/modules/audio_output/alsa.c
@@ -74,7 +74,7 @@
number of channel(s) (eg. 2 for stereo) and the size of a sample (eg.
2 for int16_t). */
#define ALSA_DEFAULT_PERIOD_SIZE 1024
-#define ALSA_DEFAULT_BUFFER_SIZE ( ALSA_DEFAULT_PERIOD_SIZE << 8 )
+#define ALSA_DEFAULT_BUFFER_SIZE ( ALSA_DEFAULT_PERIOD_SIZE << 4 )
#define ALSA_SPDIF_PERIOD_SIZE A52_FRAME_NB
#define ALSA_SPDIF_BUFFER_SIZE ( ALSA_SPDIF_PERIOD_SIZE << 4 )
/* Why << 4 ? --Meuuh */
