[MPlayer-advusers] [BUG] ao_alsa changes samplerate after volume change

[Diego Biurrun]

Hi!

When I play the following sample

http://www.mplayerhq.hu/MPlayer/samples/mov/qtaudio/surge-2-32-B-in32.mov

I get a most peculiar effect: If I press 9/0 to change the volume the
sample is suddenly played at what appears to be double speed.  The
problem goes away if I pass -ao oss on the command line.  mplayer -v
output below.

Clemens, could you look into this?  Sorry if you are receiving this
message multiple times, I don't know which one your preferred email
address is.  BTW, subscribing to this list is a good idea.  It's low
volume.

Diego


MPlayer dev-CVS-060123-03:01-4.0.3 (C) 2000-2006 MPlayer Team

get_path('codecs.conf') -> '/home/diego/.mplayer/codecs.conf'
Using built-in default codecs.conf.
CommandLine: '-v' '/home/diego/samples/MOV/qtaudio/surge-2-32-B-in32.mov'
init_freetype
Using Unoptimized OnScreenDisplay
Using nanosleep() timing
get_path('input.conf') -> '/home/diego/.mplayer/input.conf'
Falling back on default (hardcoded) input config
get_path('surge-2-32-B-in32.mov.conf') -> '/home/diego/.mplayer/surge-2-32-B-in32.mov.conf'
Playing /home/diego/samples/MOV/qtaudio/surge-2-32-B-in32.mov.
get_path('sub/') -> '/home/diego/.mplayer/sub/'
[file] File size is 4627301 bytes
STREAM: [file] /home/diego/samples/MOV/qtaudio/surge-2-32-B-in32.mov
STREAM: Description: File
STREAM: Author: Albeu
STREAM: Comment: based on the code from ??? (probably Arpi)
Checking for YUV4MPEG2
ASF_check: not ASF guid!
Checking for NuppelVideo
Checking for REAL
Checking for SMJPEG
Searching demuxer type for filename /home/diego/samples/MOV/qtaudio/surge-2-32-B-in32.mov ext: .mov
Trying demuxer 7 based on filename extension
Checking for MOV
MOV: 'WIDE' chunk found!
MOV: Movie DATA found!
MOV: Movie DATA found!
MOV: Movie header found!
Quicktime/MOV file format detected.
MOV: Movie header (100 bytes): tscale=600  dur=7868
--------------
MOV: Track #0:
MOV:  Track header!
tkhd len=84 ver=0 flags=0x0 id=1 dur=7868 lay=0 vol=256
MOV:  Edit atom!
MOV:   Edit list table (1 entries) (ver:0,flags:0)
MOV:     entry#0: duration: 7868  start time: 0  speed: 1.0x
MOV:  Media stream!
MOV:   Media header!
MOV:   Handler header: rlhm/nuos (lppa) Apple Sound Media Handler
MOV:   Media info!
MOV:    Sound header!
MOV:    Handler header: rlhd/sila (lppa) Apple Alias Data Handler
MOV: unknown chunk: dinf 28
MOV:    Sample info!
MOV:     Description list! (cnt:1)
MOV:      desc #0: 23ni  (82 bytes)
MOV:     Sample duration table! (1 blocks)
MOV:     Sample->Chunk mapping table!  (2 blocks) (ver:0,flags:0)
MOV:     Sample size table! (entries=578298 ss=1) (ver:0,flags:0)
MOV:     Chunk offset table! (53 chunks)
MOV track #0: 53 chunks, 0 samples
pts=578298  scale=44100  time=13.113
==> Found audio stream: 0
Audio bits: 16  chans: 2  rate: 44100
Audio header: samp/pack=1 bytes/pack=4 bytes/frame=8 bytes/samp=2  
Audio extra header: len=46  fcc=0x77617665
MOV: Found unknown audio atom Fourcc: 23ni
--------------
MOV: longest streams: A: #0 (53 samples)  V: #-1 (0 samples)
==========================================================================
Opening audio decoder: [pcm] Uncompressed PCM audio decoder
dec_audio: Allocating 2048 + 65536 = 67584 bytes for output buffer.
AUDIO: 44100 Hz, 2 ch, s32be, 2822.4 kbit/100.00% (ratio: 352800->352800)
Selected audio codec: [pcm] afm: pcm (Uncompressed PCM)
==========================================================================
Building audio filter chain for 44100Hz/2ch/s32be -> 0Hz/0ch/s8...
[libaf] Adding filter dummy 
[dummy] Was reinitialized: 44100Hz/2ch/s32be
[dummy] Was reinitialized: 44100Hz/2ch/s32be
alsa-init: requested format: 44100 Hz, 2 channels, 18
alsa-init: using ALSA 1.0.10
alsa-init: setup for 1/2 channel(s)
alsa-init: using device default
alsa-init: pcm opend in blocking mode
alsa-init: chunksize set to 1024
alsa-init: fragcount=8
alsa-init: got buffersize=65536
alsa-init: got period size 1024
alsa: 44100 Hz/2 channels/8 bpf/65536 bytes buffer/Signed 32 bit Big Endian
AO: [alsa] 44100Hz 2ch s32be (4 bytes per sample)
AO: Description: ALSA-0.9.x-1.x audio output
AO: Author: Alex Beregszaszi, Zsolt Barat <joy at streamminister.de>
AO: Comment: under developement
Building audio filter chain for 44100Hz/2ch/s32be -> 44100Hz/2ch/s32be...
[dummy] Was reinitialized: 44100Hz/2ch/s32be
[dummy] Was reinitialized: 44100Hz/2ch/s32be
Video: no video
Freeing 0 unused video chunks.
Starting playback...
[Mixer] No hardware mixing, inserting volume filter.
[libaf] Adding filter volume 
[libaf] Adding filter format 
[format] Changing sample format from big-endian 32-bit signed int to big-endian 16-bit signed int
[dummy] Was reinitialized: 44100Hz/2ch/s16be
[libaf] Reallocating memory in module format, old len = 0, new len = 8200
Uninit audio filters...
[libaf] Removing filter format 
[libaf] Removing filter volume 
[libaf] Removing filter dummy 
uninit audio: pcm
alsa-uninit: pcm closed
vo: x11 uninit called but X11 not inited..

Exiting... (Quit)