The VideoLAN Forums

Posted: **06 Dec 2008 17:25**

i have a strange problem with vlc (version 0.9.6) playing various videos - mostly xivd with mp3 (cbr/abr/vbr) or ac3 audio but also mkvs with avc1 & ac3 audio. there seems be be a slight delay (mostly about +200 ms) which only vlc seems to create. other playes like wmp, old bsplayer or mpc play the vids in-sync without any issues. I mostly watch movies on my LCD which is connected via a 10m VGA-cable to my computer, my TFT is connected via a DVI-cable. as I said other players don't have the lipsync/slight out of sync problems.
In the codebox is the output of mediainfo of the last video file where the delay was created.
I know that I can 'fix' this using the delay audio/video by +/- ms option - but that can't be a satisfying solution - doing this all the time. Is this a VLC-bug and if so how's the chance that it will get fixed permanently in future releases?

Code: Select all

General
Complete name                    : E:\*.avi
Format                           : AVI
Format/Info                      : Audio Video Interleave
File size                        : 723 MiB
Duration                         : 1h 37mn
Overall bit rate                 : 1 035 Kbps

Video
Format                           : MPEG-4 Visual
Format profile                   : Simple@L3
Format settings, BVOP            : Yes
Format settings, QPel            : No
Format settings, GMC             : No warppoints
Format settings, Matrix          : Default
Muxing mode                      : Packed bitstream
Codec ID                         : XVID
Codec ID/Hint                    : XviD
Duration                         : 1h 37mn
Bit rate                         : 834 Kbps
Width                            : 720 pixels
Height                           : 480 pixels
Display aspect ratio             : 1.500
Frame rate                       : 23.976 fps
Standard                         : NTSC
Resolution                       : 24 bits
Colorimetry                      : 4:2:0
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.101
Stream size                      : 582 MiB (81%)
Writing library                  : XviD 1.1.0 Beta1 (UTC 2005-01-16)

Audio
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 3
Codec ID                         : 55
Codec ID/Hint                    : MP3
Duration                         : 1h 37mn
Bit rate mode                    : Constant
Bit rate                         : 192 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 44.1 KHz
Resolution                       : 16 bits
Video delay                      : 26ms
Stream size                      : 134 MiB (19%)
Alignment                        : Split accross interleaves
Interleave, duration             : 42 ms (1.00 video frame)
Title                            : Audio Stream

my system:
Intel E6850 3,0 Ghz
XFX GeForce GTX 260 666M 896MB
Asus P5N32-E SLI Plus
3 GB Corsair XMS2 PC2-6400 CL5
Samsung HD103UJ, HD501LJ, SP2004C
Corsair HX520W
LG 226 WTQ
Toshiba 32C3502P
XP Pro SP3 32bit
Vista Ultimate SP1 32bit
nForce 15.23 & nvidia 180.48 drivers

Posted: **06 Dec 2008 17:36**

Have you tried other audio output modules?

Posted: **06 Dec 2008 20:57**

I tried the DirectX, Portaudio and win32 waveOut extension - It's all the same with them (+200 ms)
with File-Output and Dummy I don't hear a thing.

My Onboard Sound is soundmax adi 1988B if that matters.

Here's the Output of the messages tab verbose level 2 when I open the file jump to a specific location an close it again.

Code: Select all

main info: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
main debug: adding item `*.avi' ( E:\*.avi )
main debug: rebuilding array of current - root Playlist
main debug: rebuild done - 1 items, index -1
main debug: starting new item
main debug: processing request item *.avi node null skip 0
main debug: resyncing on *.avi
main debug: *.avi is at 0
main debug: creating new input thread
main debug: Creating an input for '*.avi'
main debug: waiting for thread initialization
main debug: thread started
main debug: thread 5044 (input) created at priority 1 (input/input.c:370)
main debug: `E:\*.avi' gives access `' demux `' path `E:\*.avi'
qt4 debug: Updating the stream status: 3
main debug: creating demux: access='' demux='' path='E:\*.avi'
main debug: looking for access_demux module: 1 candidate
dvdnav warning: cannot open dvdnav
main debug: TIMER module_Need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: creating access '' path='E:\*.avi'
main debug: looking for access module: 5 candidates
vcd debug: trying .cue file: E:\*.cue
vcd debug: could not find .cue file
access_file debug: opening file `E:\*.avi'
main debug: using access module "access_file"
main debug: TIMER module_Need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: Using AStream*Stream
main debug: pre-buffering...
main debug: received first data for our buffer
qt4 debug: New Event: type 1103
qt4 debug: Updating the stream status: 2
main debug: pre-buffering done 1408981 bytes in 0s - 687635 kbytes/s
main debug: creating demux: access='' demux='' path='E:\*.avi'
main debug: looking for demux module: 59 candidates
avi debug: found Chunk fourcc:46464952 (RIFF) size:758062154 pos:0
avi debug: found LIST chunk: 'AVI '
avi debug: <list 'AVI '>
avi debug: found Chunk fourcc:5453494c (LIST) size:328 pos:12
avi debug: found LIST chunk: 'hdrl'
avi debug: <list 'hdrl'>
avi debug: found Chunk fourcc:68697661 (avih) size:56 pos:24
avi debug: avih: streams:2 flags: HAS_INDEX TRUST_CKTYPE 720x480
avi debug: found Chunk fourcc:5453494c (LIST) size:116 pos:88
avi debug: found LIST chunk: 'strl'
avi debug: <list 'strl'>
avi debug: found Chunk fourcc:68727473 (strh) size:56 pos:100
avi debug: strh: type:vids handler:0x64697678 samplesize:0 23.98fps
avi debug: found Chunk fourcc:66727473 (strf) size:40 pos:164
avi debug: strf: video:XVID 720x480 planes:1 24bpp
avi debug: </list 'strl'>
avi debug: found Chunk fourcc:5453494c (LIST) size:128 pos:212
avi debug: found LIST chunk: 'strl'
avi debug: <list 'strl'>
avi debug: found Chunk fourcc:68727473 (strh) size:56 pos:224
avi debug: strh: type:auds handler:0x00000000 samplesize:1 24000.00fps
avi debug: found Chunk fourcc:66727473 (strf) size:30 pos:288
avi debug: strf: audio:0x0055 channels:2 44100Hz 0bits/sample 187kb/s
avi debug: found Chunk fourcc:6e727473 (strn) size:13 pos:326
avi debug: strn: stream name : Audio Stream
avi debug: </list 'strl'>
avi debug: </list 'hdrl'>
avi debug: found Chunk fourcc:4b4e554a (JUNK) size:1680 pos:348
avi debug: found Chunk fourcc:5453494c (LIST) size:753564846 pos:2036
avi debug: skipping movi chunk
avi debug: found Chunk fourcc:31786469 (idx1) size:4495264 pos:753566890
avi debug: idx1: index entry:280954
avi debug: </list 'AVI '>
avi debug: found Chunk fourcc:63643030 (00dc) size:0 pos:758062162
avi warning: unknown chunk (not loaded)
avi debug: found Chunk fourcc:2c186334 (4c,) size:6635 pos:758062170
avi warning: unknown chunk (not loaded)
avi debug: * LIST-root size:758062592 pos:0
avi debug:      + RIFF-AVI  size:758062154 pos:0
avi debug:      |    + LIST-hdrl size:328 pos:12
avi debug:      |    |    + avih size:56 pos:24
avi debug:      |    |    + LIST-strl size:116 pos:88
avi debug:      |    |    |    + strh size:56 pos:100
avi debug:      |    |    |    + strf size:40 pos:164
avi debug:      |    |    + LIST-strl size:128 pos:212
avi debug:      |    |    |    + strh size:56 pos:224
avi debug:      |    |    |    + strf size:30 pos:288
avi debug:      |    |    |    + strn size:13 pos:326
avi debug:      |    + JUNK size:1680 pos:348
avi debug:      |    + LIST-movi size:753564846 pos:2036
avi debug:      |    + idx1 size:4495264 pos:753566890
avi debug:      + 00dc size:0 pos:758062162
avi debug:      + 4c, size:6635 pos:758062170
avi debug: AVIH: 2 stream, flags  HAS_INDEX TRUST_CKTYPE 
avi debug: stream[0] rate:23976 scale:1000 samplesize:0
avi debug: stream[0] video(XVID) 720x480 24bpp 23.976000fps
main debug: selecting program id=0
qt4 debug: New Event: type 1108
avi debug: stream[1] rate:24000 scale:1 samplesize:1
avi debug: stream[1] audio(0x55) 2 channels 44100Hz 0bits
avi debug: stream[0] created 140477 index entries
avi debug: stream[1] created 140477 index entries
avi debug: stream[0] length:5859 (based on index)
avi debug: stream[1] length:5859 (based on index)
main debug: using demux module "avi"
main debug: TIMER module_Need() : 77.000 ms - Total 77.000 ms / 1 intvls (Avg 77.000 ms)
main debug: looking for a subtitle file in E:\*\
main debug: looking for decoder module: 33 candidates
avcodec debug: libavcodec initialized (interface 3360512 )
avcodec debug: using direct rendering
avcodec debug: ffmpeg codec (MPEG-4 Video) started
main debug: using decoder module "avcodec"
main debug: TIMER module_Need() : 3.000 ms - Total 3.000 ms / 1 intvls (Avg 3.000 ms)
main debug: thread 5120 (decoder) created at priority 0 (input/decoder.c:217)
main debug: looking for decoder module: 33 candidates
main debug: using decoder module "mpeg_audio"
main debug: TIMER module_Need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: thread 5148 (decoder) created at priority 2 (input/decoder.c:217)
main debug: `E:\*.avi' successfully opened
main debug: thread started
avi debug: old:0 < new 0
main debug: control type=1
main debug: thread started
main debug: no usable vout present, spawning one
main debug: window size: 720x480
main debug: looking for video output module: 6 candidates
vout_directx debug: creating DirectXEventThread
main debug: waiting for thread initialization
main debug: thread started
vout_directx debug: DirectXCreateWindow
main debug: looking for vout window module: 2 candidates
qt4 debug: waiting for interface...
qt4 debug: requesting window...
qt4 debug: Video was requested -1, -1
qt4 debug: New Event: type 1103
qt4 debug: Updating the stream status: 3
qt4 debug: Video is resizing to: 720 480
qt4 debug: Qt FS: Attaching Vout
qt4 debug: Qt: Changing Fullscreen Mode
main debug: using vout window module "qt4"
main debug: TIMER module_Need() : 18.000 ms - Total 18.000 ms / 1 intvls (Avg 18.000 ms)
vout_directx debug: created video sub-window
main debug: thread 5208 (Vout Events Thread) created at priority 0 (directx.c:281)
vout_directx debug: Vout EventThread running
vout_directx debug: DirectXInitDDraw
vout_directx debug: directx-device: 
vout_directx debug: DirectXEnumCallback: Prim?rer Anzeigetreiber, display
vout_directx debug: DirectXEnumCallback: NVIDIA GeForce GTX 260, \\.\DISPLAY1
vout_directx debug: selecting NVIDIA GeForce GTX 260, \\.\DISPLAY1
vout_directx debug: DirectXEnumCallback: NVIDIA GeForce GTX 260, \\.\DISPLAY2
vout_directx debug: screen dimensions (0x0,1680x1050)
vout_directx debug: DirectDraw Capabilities: overlay=1 yuvoverlay=1 can_deinterlace_overlay=1 colorkey=1 stretch=1 bltfourcc=1
vout_directx debug: align_boundary_src=0,0 align_boundary_dest=1,1 align_size_src=0,0 align_size_dest=0,0
vout_directx debug: End DirectXInitDDraw
vout_directx debug: DirectXCreateDisplay
mpeg_audio debug: MPGA channels:2 samplerate:44100 bitrate:192
main debug: no aout present, spawning one
main debug: looking for audio output module: 3 candidates
aout_directx debug: OpenAudio
qt4 debug: Updating the geometry
vout_directx debug: DirectXCreateClipper
vout_directx debug: disabling screen saver
main debug: using video output module "vout_directx"
main debug: TIMER module_Need() : 63.000 ms - Total 63.000 ms / 1 intvls (Avg 63.000 ms)
main debug: thread started
vout_directx debug: NewPictureVec overlay:yes chroma:YV12
main debug: waiting for thread initialization
vout_directx debug: YUV overlay created successfully
vout_directx debug: End NewPictureVec (succeeded)
main debug: got 1 direct buffer(s)
main debug: picture in 720x480 (0,0,720x480), chroma I420, ar 3:2, sar 1:1
main debug: picture user 720x480 (0,0,720x480), chroma I420, ar 3:2, sar 1:1
main debug: picture out 720x480 (0,0,720x480), chroma I420, ar 3:2, sar 1:1
main debug: direct render, mapping render pictures 0-6 to system pictures 1-7
main debug: thread 5392 (video output) created at priority 1 (video_output/video_output.c:502)
aout_directx debug: found device: Prim?rer Soundtreiber
aout_directx debug: found device: SoundMAX HD Audio
main debug: looking for text renderer module: 2 candidates
main debug: thread 5448 (fontlist builder) created at priority 0 (freetype.c:477)
freetype debug: using fontsize: 30
main debug: using text renderer module "freetype"
main debug: TIMER module_Need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
freetype debug: using fontsize: 30
main debug: thread started
main debug: looking for video blending module: 1 candidate
blend debug: chroma: YUVA -> I420
main debug: using video blending module "blend"
main debug: TIMER module_Need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
freetype debug: Building font database...
freetype debug: Finished building font database.
freetype debug: Took 0 seconds
main debug: thread ended
aout_directx debug: device supports 2 channels (DEFAULT!)
aout_directx debug: device supports 2 channels
aout_directx debug: device supports 1 channel
aout_directx debug: Windows says your SpeakerConfig is stereo
aout_directx debug: creating DirectSoundThread
main debug: thread started
main debug: thread 5792 (DirectSound Notification Thread) created at priority 15 (directx.c:392)
aout_directx debug: DirectSoundThread ready
main debug: using audio output module "aout_directx"
main debug: TIMER module_Need() : 83.000 ms - Total 83.000 ms / 1 intvls (Avg 83.000 ms)
main debug: output 's16l' 44100 Hz Stereo frame=1 samples/4 bytes
main debug: mixer 'fl32' 44100 Hz Stereo frame=1 samples/8 bytes
main debug: filter(s) 'fl32'->'s16l' 44100 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module: 24 candidates
main debug: using audio filter module "converter_float"
main debug: TIMER module_Need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: found a filter for the whole conversion
main debug: looking for audio mixer module: 3 candidates
main debug: using audio mixer module "float32_mixer"
main debug: TIMER module_Need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: input 'mpga' 44100 Hz Stereo frame=1152 samples/1053 bytes
main debug: filter(s) 'mpga'->'fl32' 44100 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module: 24 candidates
main debug: using audio filter module "mpgatofixed32"
main debug: TIMER module_Need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: found a filter for the whole conversion
main debug: filter(s) 'fl32'->'fl32' 48510 Hz->44100 Hz Stereo->Stereo
main debug: looking for audio filter module: 24 candidates
main debug: using audio filter module "bandlimited_resampler"
main debug: TIMER module_Need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: found a filter for the whole conversion
qt4 debug: New Event: type 1109
main debug: control type=7
avi debug: seek requested: 1430 seconds 24%
avi debug: old:13596930 < new 1430000000
avi debug: seek: 1430 seconds
mpeg_audio debug: emulated startcode (no startcode on following frame)
mpeg_audio debug: emulated startcode
main debug: End of audio preroll
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
main debug: End of video preroll
main warning: late picture skipped (143088263999)
main warning: late picture skipped (143088263999)
main debug: incoming request - stopping current input
main debug: dying input
avcodec debug: ffmpeg codec (MPEG-4 Video) stopped
main debug: removing module "avcodec"
main debug: thread ended
main debug: removing module "mpeg_audio"
main debug: thread ended
main debug: control type=0
main debug: control: stopping input
avi debug: free chunk avih
avi debug: free chunk strh
avi debug: free chunk strf
avi debug: free chunk LIST
avi debug: free chunk strh
avi debug: free chunk strf
avi debug: free chunk strn
avi debug: free chunk LIST
avi debug: free chunk LIST
avi debug: free chunk JUNK
avi debug: free chunk LIST
avi debug: free chunk idx1
avi debug: free chunk RIFF
avi warning: unknown chunk (not unloaded)
avi warning: unknown chunk (not unloaded)
avi debug: free chunk LIST
main debug: removing module "avi"
main debug: removing module "access_file"
main debug: thread times: real 0m15.906250s, kernel 0m0.062500s, user 0m0.109375s
main debug: thread 5120 joined (input/decoder.c:248)
main debug: killing decoder fourcc `XVID', 3 PES in FIFO
qt4 debug: Updating the stream status: 8
vout_directx debug: DirectXCloseSurface
vout_directx debug: DirectXCloseDisplay
vout_directx debug: DirectXCloseDisplay clipper
vout_directx debug: DirectXCloseDisplay display
main debug: dying input
vout_directx debug: DirectXCloseDDraw
main debug: thread ended
main debug: thread times: real 0m15.859375s, kernel 0m0.015625s, user 0m0.031250s
main debug: thread 5392 joined (video_output/video_output.c:536)
vout_directx debug: DirectXEventThread terminating
vout_directx debug: DirectXCloseWindow
vout_directx debug: WinProc WM_DESTROY
qt4 debug: Qt FS: Detaching Vout
qt4 debug: Qt: Changing Fullscreen Mode
main debug: removing module "qt4"
main debug: thread ended
main debug: thread times: real 0m15.921875s, kernel 0m0.031250s, user 0m0.000000s
main debug: thread 5208 joined (directx.c:513)
main debug: removing module "vout_directx"
main debug: removing module "blend"
main debug: thread times: real 0m0.015625s, kernel 0m0.000000s, user 0m0.000000s
main debug: thread 5448 joined (freetype.c:511)
main debug: removing module "freetype"
main debug: thread times: real 0m15.906250s, kernel 0m0.031250s, user 0m0.000000s
main debug: thread 5148 joined (input/decoder.c:248)
main debug: killing decoder fourcc `mpga', 2 PES in FIFO
main debug: removing module "mpgatofixed32"
main debug: removing module "bandlimited_resampler"
aout_directx debug: closing audio device
aout_directx debug: DirectSoundThread exiting
main debug: thread ended
main debug: thread times: real 0m15.796875s, kernel 0m0.000000s, user 0m0.000000s
main debug: thread 5792 joined (directx.c:664)
main debug: removing module "aout_directx"
main debug: removing module "converter_float"
main debug: removing module "float32_mixer"
main debug: thread ended
qt4 debug: Video is not needed anymore
qt4 debug: Updating the geometry
main debug: dead input
main debug: thread times: real 0m16.015625s, kernel 0m0.015625s, user 0m0.046875s
main debug: thread 5044 joined (playlist/engine.c:244)
main debug: TIMER input launching for '*.avi' : 88.000 ms - Total 88.000 ms / 1 intvls (Avg 88.000 ms)

Posted: **07 Dec 2008 19:02**

Is there a short sample file you could provide that shows the issue?

Posted: **08 Dec 2008 18:33**

okay here's a link to a short sample of the file
sample

Posted: **09 Dec 2008 19:29**

Works fine in here. Is there any USB soundcard that you could test?

Posted: **09 Dec 2008 23:22**

my headphones (steelsound 5h v2) have a usb-soundcard, it's the same with them. look closely - watch it with and without +200 ms delay

ah I'm sorry the delay is in the file itself - so it has nothing to do with the player (just noticed the same delay with mpc, wmp, bsplayer)
most people won't even notice such a slight delay like that. +200 ms is not very much, but if you watch the lips very closely when people speak you'll notice.

sry that I didn't notice that earlier - it's really not easy to tell the difference

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