Video playback: Audio skipping

[Sugarysam]

I did some googling on this issue, but did not come up with a solution that worked.

When I am playing any type of video (avi, mpg, etc), the audio will skip every few seconds. This issue is extremely irritating and I've had to start using WMP. I would much rather keep using VLC (I've been using it for years) for my video player needs. If anyone can help me I would be very grateful.

I tried bumping up the file buffer, but to no avail.

My computer specs:
Intel 3.0Ghz Core Duo
8Gb of DDR3
Saphire ATi 4850 512mb
Creative SBLive

[VLC_help]

Does Waveout audio output module work any better?
http://wiki.videolan.org/WindowsFAQ-1.0 ... _anomalies

[Sugarysam]

No, that actually made it worse.

[VLC_help]

And you have latest drivers for you audio device?

[Sugarysam]

That also did not fix the issue. This is only an issue with VLC. I can play the exact same videos with Windows Media Player with absolutely no audio issues.

[VLC_help]

VLC doesn't use DirectShow, so the quality of the audio between VLC and WMP won't be same.

You see any warnings/errors in Tools -> Messages... (set Verbosity to 2)?

[Sugarysam]

main debug: processing request item House MD 504 - Birthmarks.avi node Playlist skip 0
main debug: resyncing on House MD 504 - Birthmarks.avi
main debug: House MD 504 - Birthmarks.avi is at 1
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for 'House MD 504 - Birthmarks.avi'
main debug: thread (input) created at priority 1 (../.././src/input/input.c:230)
qt4 debug: IM: Setting an input
main debug: thread started
main debug: using timeshift granularity of 50 MBytes
main debug: using timeshift path 'F:\DOCUME~1\CURBDA~1\LOCALS~1\Temp'
main debug: `I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.avi' gives access `' demux `' path `I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.avi'
main debug: creating demux: access='' demux='' path='I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.avi'
main debug: looking for access_demux module: 3 candidates
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: creating access '' path='I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.avi'
main debug: looking for access module: 5 candidates
vcd debug: trying .cue file: I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.cue
vcd debug: could not find .cue file
access_file debug: opening file `I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.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 after 0 ms
main debug: pre-buffering done 1024 bytes in 0s - 1000000 kbytes/s
main debug: looking for stream_filter module: 2 candidates
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for stream_filter module: 1 candidate
main debug: using stream_filter module "stream_filter_record"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: creating demux: access='' demux='' path='I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.avi'
main debug: looking for demux module: 50 candidates
avi debug: found Chunk fourcc:46464952 (RIFF) size:366779276 pos:0
avi debug: found LIST chunk: 'AVI '
avi debug: <list 'AVI '>
avi debug: found Chunk fourcc:5453494c (LIST) size:306 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 IS_INTERLEAVED 624x352
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:0x44495658 samplesize:0 23.98fps
avi debug: found Chunk fourcc:66727473 (strf) size:40 pos:164
avi debug: strf: video:XVID 624x352 planes:1 24bpp
avi debug: </list 'strl'>
avi debug: found Chunk fourcc:5453494c (LIST) size:106 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:0 41.67fps
avi debug: found Chunk fourcc:66727473 (strf) size:30 pos:288
avi debug: strf: audio:0x0055 channels:2 48000Hz 16bits/sample 125kb/s
avi debug: </list 'strl'>
avi debug: </list 'hdrl'>
avi debug: found Chunk fourcc:5453494c (LIST) size:28 pos:326
avi debug: found LIST chunk: 'INFO'
avi debug: <list 'INFO'>
avi debug: found Chunk fourcc:54465349 (ISFT) size:16 pos:338
avi debug: ISFT: software : transcode-0.6.9
avi debug: </list 'INFO'>
avi debug: found Chunk fourcc:4b4e554a (JUNK) size:1666 pos:362
avi debug: found Chunk fourcc:5453494c (LIST) size:364054672 pos:2036
avi debug: skipping movi chunk
avi debug: found Chunk fourcc:31786469 (idx1) size:2722560 pos:364056716
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
avi debug: idx1: index entry:170160
avi debug: </list 'AVI '>
avi debug: * LIST-root size:366779284 pos:0
avi debug: + RIFF-AVI size:366779276 pos:0
avi debug: | + LIST-hdrl size:306 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:106 pos:212
avi debug: | | | + strh size:56 pos:224
avi debug: | | | + strf size:30 pos:288
avi debug: | + LIST-INFO size:28 pos:326
avi debug: | | + ISFT size:16 pos:338
avi debug: | + JUNK size:1666 pos:362
avi debug: | + LIST-movi size:364054672 pos:2036
avi debug: | + idx1 size:2722560 pos:364056716
avi debug: AVIH: 2 stream, flags HAS_INDEX IS_INTERLEAVED
avi debug: stream[0] rate:23976024 scale:1000000 samplesize:0
avi debug: stream[0] video(XVID) 624x352 24bpp 23.976024fps
main debug: selecting program id=0
avi debug: stream[1] rate:48000 scale:1152 samplesize:0
avi debug: stream[1] audio(0x55) 2 channels 48000Hz 16bits
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
avi debug: stream[0] created 62151 index entries
avi debug: stream[1] created 108009 index entries
avi debug: stream[0] length:2592 (based on index)
avi debug: stream[1] length:2592 (based on index)
main debug: using demux module "avi"
main debug: TIMER module_need() : 37.000 ms - Total 37.000 ms / 1 intvls (Avg 37.000 ms)
main debug: looking for a subtitle file in I:\TV\House MD Complete Season 5\
main debug: looking for decoder module: 35 candidates
avcodec debug: libavcodec already initialized
avcodec debug: using direct rendering
avcodec debug: ffmpeg codec (MPEG-4 Video) started
main debug: using decoder module "avcodec"
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 ms)
main debug: thread (decoder) created at priority 0 (../.././src/input/decoder.c:315)
main debug: thread started
main debug: looking for decoder module: 35 candidates
main debug: using decoder module "mpeg_audio"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:315)
main debug: thread started
main debug: `I:\TV\House MD Complete Season 5\House MD 504 - Birthmarks.avi' successfully opened
main debug: Buffering 0%
main debug: Buffering 8%
main debug: Buffering 16%
main debug: no usable vout present, spawning one
main debug: looking for text renderer module: 2 candidates
freetype debug: using fontsize: 2
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)
main debug: looking for video filter2 module: 20 candidates
swscale debug: 32x32 chroma: YUVA -> 16x16 chroma: YUVA with scaling using Bicubic (good quality)
main debug: using video filter2 module "swscale"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: looking for video filter2 module: 20 candidates
yuvp debug: YUVP to YUVA converter
main debug: using video filter2 module "yuvp"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
mpeg_audio debug: MPGA channels:2 samplerate:48000 bitrate:128
main debug: Buffering 25%
main debug: Buffering 33%
main debug: Buffering 41%
main debug: Buffering 50%
main debug: Buffering 58%
main debug: Buffering 66%
main debug: Buffering 75%
main debug: Buffering 83%
main debug: Buffering 91%
main debug: Buffering 100%
main debug: Stream buffering done (325 ms in 4 ms)
main debug: window size: 624x352
main debug: looking for video output module: 7 candidates
vout_directx debug: creating DirectXEventThread
main debug: thread (Vout Events Thread) created at priority 0 (../../../.././modules/video_output/msw/directx.c:282)
main debug: thread started
vout_directx debug: DirectXCreateWindow
main debug: looking for hwnd module: 3 candidates
qt4 debug: requesting video...
qt4 debug: Video was requested -1, -1
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Video is resizing to: 624 352
main debug: using hwnd module "qt4"
main debug: TIMER module_need() : 107.000 ms - Total 107.000 ms / 1 intvls (Avg 107.000 ms)
vout_directx debug: created video sub-window
vout_directx debug: Vout EventThread running
vout_directx debug: DirectXInitDDraw
vout_directx debug: directx-device:
vout_directx debug: DirectXEnumCallback: Primary Display Driver, display
vout_directx debug: DirectXEnumCallback: ATI Radeon HD 4800 Series , \\.\DISPLAY1
vout_directx debug: selecting ATI Radeon HD 4800 Series , \\.\DISPLAY1
vout_directx debug: screen dimensions (0x0,1920x1080)
vout_directx debug: DirectDraw Capabilities: overlay=1 yuvoverlay=1 can_deinterlace_overlay=1 colorkey=1 stretch=1 bltfourcc=1
vout_directx debug: End DirectXInitDDraw
vout_directx debug: DirectXCreateDisplay
vout_directx debug: DirectXCreateClipper
vout_directx debug: disabling screen saver
main debug: using video output module "vout_directx"
main debug: TIMER module_need() : 117.000 ms - Total 117.000 ms / 1 intvls (Avg 117.000 ms)
main debug: Deinterlacing available
vout_directx debug: NewPictureVec overlay:yes chroma:YV12
vout_directx debug: YUV overlay created successfully
vout_directx debug: End NewPictureVec (succeeded)
main debug: got 1 direct buffer(s)
main debug: pic render sz 624x352, of (0,0), vsz 624x352, 4cc I420, ar 382909:216000, sar 1:1, msk r0x0 g0x0 b0x0
main debug: pic in sz 624x352, of (0,0), vsz 624x352, 4cc I420, ar 382909:216000, sar 1:1, msk r0x0 g0x0 b0x0
main debug: pic out sz 624x352, of (0,0), vsz 624x352, 4cc I420, ar 382909:216000, sar 1:1, msk r0x0 g0x0 b0x0
main debug: direct render, mapping render pictures 0-14 to system pictures 1-15
main debug: reusing aout
main debug: looking for audio output module: 3 candidates
waveout debug: Drivername: Microsoft Sound Mapper
waveout debug: Driver Version: 5.0
waveout debug: Manufacturer identifier: 0x1
waveout debug: Product identifier: 0x2
waveout debug: device supports 2 channels
waveout debug: device supports 1 channel
waveout debug: OpenWaveDevice-ID: 4294967295
waveout debug: waveformat.Format.cbSize = 0
waveout debug: waveformat.Format.wFormatTag = 3
waveout debug: waveformat.Format.nChannels = 2
waveout debug: waveformat.Format.nSamplesPerSec = 48000
waveout debug: waveformat.Format.nAvgBytesPerSec = 384000
waveout debug: waveformat.Format.nBlockAlign = 8
waveout debug: waveformat.Format.wBitsPerSample = 32
waveout debug: waveformat.Samples.wValidBitsPerSample = 32
waveout debug: waveformat.Samples.wSamplesPerBlock = 32
waveout debug: waveformat.dwChannelMask = 3
main debug: End of video preroll
main debug: Received first picture
freetype debug: using fontsize: 22
qt4 debug: Updating the geometry
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)
main debug: thread (waveOut Notification Thread) created at priority 1 (../../.././modules/audio_output/waveout.c:436)
main debug: using audio output module "waveout"
main debug: TIMER module_need() : 10.000 ms - Total 10.000 ms / 1 intvls (Avg 10.000 ms)
main debug: output 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes
main debug: mixer 'fl32' 48000 Hz Stereo frame=1 samples/8 bytes
main debug: no need for any filter
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' 48000 Hz Stereo frame=1152 samples/969 bytes
main debug: looking for audio filter module: 1 candidate
scaletempo warning: bad input or output format
main warning: no audio filter module matching "scaletempo" could be loaded
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for audio filter module: 1 candidate
scaletempo debug: format: 48000 rate, 2 nch, 4 bps, fl32
scaletempo debug: params: 30 stride, 0.200 overlap, 14 search
scaletempo debug: 1.000 scale, 1440.000 stride_in, 1440 stride_out, 1152 standing, 288 overlap, 672 search, 2400 queue, fl32 mode
main debug: using audio filter module "scaletempo"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: filter(s) 'mpga'->'fl32' 48000 Hz->48000 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: looking for audio filter module: 1 candidate
spatializer debug: Opening filter spatializer ../../../.././modules/audio_filter/spatializer/spatializer.cpp Open 135
spatializer debug: room callback 1.0 ../../../.././modules/audio_filter/spatializer/spatializer.cpp RoomCallback 284
spatializer debug: width callback 10.0 ../../../.././modules/audio_filter/spatializer/spatializer.cpp WidthCallback 295
spatializer debug: wet callback 3.0 ../../../.././modules/audio_filter/spatializer/spatializer.cpp WetCallback 305
spatializer debug: dry callback 2.0 ../../../.././modules/audio_filter/spatializer/spatializer.cpp DryCallback 315
spatializer debug: damp callback 1.0 ../../../.././modules/audio_filter/spatializer/spatializer.cpp DampCallback 325
spatializer debug: 1.050000
main debug: using audio filter module "spatializer"
main debug: TIMER module_need() : 0.000 ms - Total 0.000 ms / 1 intvls (Avg 0.000 ms)
main debug: looking for audio filter module: 1 candidate
equalizer debug: equalizer loaded for 48000 Hz with 10 bands 1 pass
equalizer debug: 60 Hz -> factor:0.000000 alpha:0.002769 beta:0.994462 gamma:1.994400
equalizer debug: 170 Hz -> factor:0.000000 alpha:0.007806 beta:0.984388 gamma:1.983897
equalizer debug: 310 Hz -> factor:0.000000 alpha:0.014143 beta:0.971714 gamma:1.970091
equalizer debug: 600 Hz -> factor:0.000000 alpha:0.027011 beta:0.945978 gamma:1.939979
equalizer debug: 1000 Hz -> factor:0.000000 alpha:0.044203 beta:0.911595 gamma:1.895241
equalizer debug: 3000 Hz -> factor:0.000000 alpha:0.121223 beta:0.757553 gamma:1.623767
equalizer debug: 6000 Hz -> factor:0.000000 alpha:0.212888 beta:0.574224 gamma:1.113145
equalizer debug: 12000 Hz -> factor:0.000000 alpha:0.331347 beta:0.337307 gamma:0.000000
equalizer debug: 14000 Hz -> factor:0.000000 alpha:0.355263 beta:0.289473 gamma:-0.333740
equalizer debug: 16000 Hz -> factor:0.000000 alpha:0.371900 beta:0.256201 gamma:-0.628100
main debug: using audio filter module "equalizer"
main debug: TIMER module_need() : 1.000 ms - Total 1.000 ms / 1 intvls (Avg 1.000 ms)
main debug: filter(s) 'fl32'->'fl32' 52800 Hz->48000 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
main debug: End of audio preroll
main debug: Decoder buffering done in 135 ms
main warning: PTS is out of range (-10000), dropping buffer
main warning: PTS is out of range (-34000), dropping buffer
mpgatofixed32 debug: libmad error: bad main_data_begin pointer
waveout debug: Wakeup sleeping output thread.
main debug: thread started
waveout debug: will start to play in 43000 us
qt4 debug: Qt: Entering Fullscreen
main debug: Post-processing available
main warning: late picture skipped (8876 > -1757)


That's all I got.

[VLC_help]

Does it help if you disable spatializer audio filter?

[Sugarysam]

No affect. Still skipping.