Audio problems in VLC (during video playback)

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SteeeveWei
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Audio problems in VLC (during video playback)

Postby SteeeveWei » 28 Mar 2013 01:36

Whenever I play video files, if I seek to a certain position or just let the video play for awhile, the audio just cuts out and the video becomes silent (the video still functions perfectly).
This problem occurs almost all the time when playing very large files (like 1080p videos) but it also very rarely occurs on smaller files.

In an attempt to remedy this, I switched to various audio output modules, but they all suffer from the same problem.
The output modules that appear in the dropdown menu are DirectX and Win32 waveOut.

I looked at the messages window with verbosity set to 2, and I recorded what happened whenever the audio cut out.

When I set the output module to DirectX, this is what showed in the log as I seeked to a certain point in the video (without the audio malfunctioning):

mkv debug: seek request to -1 (0.019000%)
mkv debug: seek got 128395000 (1%)
main debug: Buffering 0%
main debug: Buffering 0%
main debug: Buffering 5%
main debug: Buffering 8%
main debug: Buffering 14%
main debug: Buffering 19%
main debug: Buffering 22%
main debug: Buffering 28%
main debug: Buffering 33%
main debug: Buffering 38%
main debug: Buffering 42%
main debug: Buffering 47%
main debug: Buffering 52%
main debug: Buffering 57%
main debug: Buffering 61%
main debug: Buffering 66%
main debug: Buffering 70%
main debug: Buffering 74%
main debug: Buffering 78%
main debug: Buffering 83%
main debug: Buffering 88%
main debug: Buffering 93%
main debug: End of audio preroll
main debug: Buffering 97%
main debug: Stream buffering done (7975 ms in 49 ms)
main debug: End of video preroll
main debug: Received first picture
main debug: Decoder buffering done in 3767 ms
main debug: audio output is starving (-132321), playing silence
main warning: resampling stopped after 27827156 usec (drift: 311)
main debug: picture might be displayed late (missing 17 ms)

However, when the audio actually malfunctioned while I used the DirectX module, nothing audio related appeared in the messages box.

Here is the log when I switched to Win32 waveOut. I let the video play for awhile and then the sound malfunctioned:

main debug: auto hiding mouse cursor
mkv debug: NEW CHAPTER 162663000
waveout warning: aout_PacketNext no buffer got next_date=4692753 ms, 4 frames to play, waiting...
waveout warning: aout_PacketNext no buffer got next_date=4692743 ms, 1 frames to play, waiting...

This is what happened when I seeked to a certain point when the audio broke (still using waveOut):

main warning: early picture skipped
main warning: received buffer in the future
mkv debug: seek request to -1 (0.075000%)
mkv debug: seek got 532632000 (7%)
main debug: Buffering 0%
waveout warning: aout_PacketNext no buffer got next_date=35713738 ms, 4 frames to play, waiting...
main debug: Buffering 0%
main debug: Buffering 8%
main debug: Buffering 17%
main debug: Buffering 27%
main debug: Buffering 35%
main debug: Buffering 43%
main debug: Buffering 53%
main debug: Buffering 61%
main debug: Buffering 71%
main debug: Buffering 79%
main debug: Buffering 89%
main debug: End of audio preroll
main debug: Buffering 97%
main debug: Stream buffering done (4238 ms in 280 ms)
waveout warning: aout_PacketNext no buffer got next_date=35713728 ms, 1 frames to play, waiting...
main debug: End of video preroll
main debug: Received first picture
main debug: auto hiding mouse cursor
main debug: Decoder buffering done in 1873 ms


Some additional info:
I am using Windows 7 Ultimate 64 bit, this problem occurred on both the 32 bit and 64 bit VLC installations, I am using Realtek audio drivers.

EDIT:
After some repetitive trials, I realize that these problems consistently occur on the same points during the video. (For example, the audio will always cut out at 3:01, or if I seek to 6:02 and the audio does NOT malfunction, then I can seek to that point over and over without any problems.)

Also, I should mention that the when the audio cuts out, it does not come back unless I close the VLC and open it again.

TypX
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Re: Audio problems in VLC (during video playback)

Postby TypX » 28 Mar 2013 14:17

You should try a 2.1 nightly build (again with waveout or directsound) the audio output have been rewritten to suit the new audio core. (http://nightlies.videolan.org)

SteeeveWei
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Re: Audio problems in VLC (during video playback)

Postby SteeeveWei » 28 Mar 2013 15:22

^Thanks for the reply! Unfortunately, your suggestion did not work. However, I did notice that there are more options for the audio modules. Should I try them all and post the log for each?

TypX
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Re: Audio problems in VLC (during video playback)

Postby TypX » 28 Mar 2013 15:42

No give just the verbose logs of a playback with 2.1 and waveout as audio output.

SteeeveWei
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Re: Audio problems in VLC (during video playback)

Postby SteeeveWei » 28 Mar 2013 16:51

Hmm I did not see any audio-related messages the moment the audio cut out, but I will display the log at the bottom.

If the audio format matters, for this video, it was FLAC 48000hz, 24 bits/sample
(I have many blu-ray rips of concerts)

Here is the log from one of the concerts (this log spans from the time after I pressed the rewind button to reset the video, up to when the audio breaks):

main debug: incoming request - stopping current input
main debug: control type=0
main debug: control: stopping input
main debug: incoming request - stopping current input
main debug: finished input
main debug: removing module "avcodec"
avcodec debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) stopped
main debug: killing decoder fourcc `h264', 0 PES in FIFO
main debug: saving a free vout
main debug: reusing provided vout
main debug: removing module "flac"
main debug: killing decoder fourcc `flac', 0 PES in FIFO
main debug: removing module "samplerate"
main debug: removing module "audio_format"
main debug: removing module "scaletempo"
main debug: removing module "float_mixer"
main debug: keeping audio output
main debug: removing module "libass"
main debug: killing decoder fourcc `ssa ', 0 PES in FIFO
main debug: removing module "mkv"
main debug: Program doesn't contain anymore ES
mkv debug: Stopping the UI Hook
main debug: removing module "filesystem"
main debug: incoming request - stopping current input
main debug: dead input
main debug: processing request item: [Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv, node: Playlist, skip: -1
main debug: resyncing on [Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv
main debug: [Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv is at 0
main debug: looping - restarting at end of node
main debug: starting playback of the new playlist item
main debug: resyncing on [Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv
main debug: [Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv is at 0
main debug: creating new input thread
main debug: Creating an input for '[Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv'
main debug: using timeshift granularity of 50 MiB, in path 'C:\Users\Stephen\AppData\Local\Temp'
main debug: `file:///D:/Media/Videos/Concerts/%5BDoremi%5D.Hatsune.Miku.Final.39%27s.Giving.Day.2012.03.09.%5BSEGA%5D.%5B1920x1080%5D.%5BBlu-ray%5D.%5B27F4AA2E%5D.mkv' gives access `file' demux `' path `/D:/Media/Videos/Concerts/%5BDoremi%5D.Hatsune.Miku.Final.39%27s.Giving.Day.2012.03.09.%5BSEGA%5D.%5B1920x1080%5D.%5BBlu-ray%5D.%5B27F4AA2E%5D.mkv'
main debug: creating demux: access='file' demux='' location='/D:/Media/Videos/Concerts/%5BDoremi%5D.Hatsune.Miku.Final.39%27s.Giving.Day.2012.03.09.%5BSEGA%5D.%5B1920x1080%5D.%5BBlu-ray%5D.%5B27F4AA2E%5D.mkv' file='D:\Media\Videos\Concerts\[Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv'
main debug: looking for access_demux module matching "file": 11 candidates
main debug: no access_demux modules matched
main debug: creating access 'file' location='/D:/Media/Videos/Concerts/%5BDoremi%5D.Hatsune.Miku.Final.39%27s.Giving.Day.2012.03.09.%5BSEGA%5D.%5B1920x1080%5D.%5BBlu-ray%5D.%5B27F4AA2E%5D.mkv', path='D:\Media\Videos\Concerts\[Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv'
main debug: looking for access module matching "file": 18 candidates
filesystem debug: opening file `D:\Media\Videos\Concerts\[Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv'
main debug: using access module "filesystem"
main debug: Using stream method for AStream*
main debug: starting pre-buffering
main debug: received first data after 0 ms
main debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s
main debug: looking for stream_filter module matching "any": 6 candidates
main debug: no stream_filter modules matched
main debug: looking for stream_filter module matching "stream_filter_record": 6 candidates
main debug: no stream_filter modules matched
main debug: creating demux: access='file' demux='' location='/D:/Media/Videos/Concerts/%5BDoremi%5D.Hatsune.Miku.Final.39%27s.Giving.Day.2012.03.09.%5BSEGA%5D.%5B1920x1080%5D.%5BBlu-ray%5D.%5B27F4AA2E%5D.mkv' file='D:\Media\Videos\Concerts\[Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv'
main debug: looking for demux module matching "mkv": 63 candidates
mkv debug: | + Seek head
mkv debug: | | + Seek
mkv debug: | - info at 4151
mkv debug: | + Information
mkv debug: | | + TimecodeScale=1000000
mkv debug: | | + Muxing Application=libebml v1.2.3 + libmatroska v1.3.0
mkv debug: | | + Writing Application=mkvmerge v5.2.0 ('I can't explain') built on Dec 18 2011 18:12:03
mkv debug: | | + Duration=7149155
mkv debug: | | + Date=Tue Sep 18 07:12:25 2012
mkv debug: | | + UID=663127172
mkv debug: | | + Seek
mkv debug: | - tracks at 4307
mkv debug: | + Tracks
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=1
mkv debug: | | | + Track UID=442136704
mkv debug: | | | + Track Type=video
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track MinCache=1
mkv debug: | | | + Track CodecId=V_MPEG4/ISO/AVC
mkv debug: | | | + Track CodecPrivate size=41
mkv debug: | | | + Track Default Duration=33366664
mkv debug: | | | + Track Language=`und'
mkv debug: | | | + Track Video
mkv debug: | | | | + width=1920
mkv debug: | | | | + height=1080
mkv debug: | | | | + display width=1920
mkv debug: | | | | + display height=1080
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=2
mkv debug: | | | + Track UID=494240927
mkv debug: | | | + Track Type=audio
mkv debug: | | | + Track CodecId=A_FLAC
mkv debug: | | | + Track CodecPrivate size=113
mkv debug: | | | + Track Default Duration=85333333
mkv debug: | | | + Track Language=`jpn'
mkv debug: | | | + Track Name=FLAC 2.0
mkv debug: | | | + Track Audio
mkv debug: | | | | + afreq=48000
mkv debug: | | | | + achan=2
mkv debug: | | | | + abits=24
mkv debug: | | + Track Entry
mkv debug: | | | + Track Number=3
mkv debug: | | | + Track UID=615261333
mkv debug: | | | + Track Type=subtitle
mkv debug: | | | + Track Lacing=0
mkv debug: | | | + Track CodecId=S_TEXT/ASS
mkv debug: | | | + Track CodecPrivate size=743
mkv debug: | | | + Track Language=`und'
mkv debug: | | + Seek
mkv debug: | - cues at 9274736546
mkv debug: | + Cues
qt4 debug: IM: Deleting the input
main debug: Destroying the input for '[Doremi].Hatsune.Miku.Final.39's.Giving.Day.2012.03.09.[SEGA].[1920x1080].[Blu-ray].[27F4AA2E].mkv'
mkv warning: MKV/Ebml Parser: m_el[mi_level] == NULL
mkv warning: MKV/Ebml Parser: Up cannot escape itself
mkv debug: | - loading cues done.
mkv debug: | | + Seek
mkv debug: | | + Unknown (N7libebml8EbmlVoidE)
mkv debug: | - chapters at 6518
mkv debug: | + Chapters
mkv debug: | | + EditionEntry
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3136021394
mkv debug: | | | | + ChapterTimeStart: 0
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 01'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3525334948
mkv debug: | | | | + ChapterTimeStart: 162662000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 02'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2338094781
mkv debug: | | | | + ChapterTimeStart: 455955000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 03'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2744179879
mkv debug: | | | | + ChapterTimeStart: 676008000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 04'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 4271234212
mkv debug: | | | | + ChapterTimeStart: 855521000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 05'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 4205425599
mkv debug: | | | | + ChapterTimeStart: 1046345000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 06'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 4056281993
mkv debug: | | | | + ChapterTimeStart: 1063896000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 07'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 244801212
mkv debug: | | | | + ChapterTimeStart: 1270435000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 08'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3654682553
mkv debug: | | | | + ChapterTimeStart: 1456955000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 09'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2418012824
mkv debug: | | | | + ChapterTimeStart: 1640472000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 10'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1827694269
mkv debug: | | | | + ChapterTimeStart: 1698696000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 11'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 676339869
mkv debug: | | | | + ChapterTimeStart: 1894225000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 12'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3874548126
mkv debug: | | | | + ChapterTimeStart: 2119450000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 13'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2830723250
mkv debug: | | | | + ChapterTimeStart: 2321552000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 14'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2549386414
mkv debug: | | | | + ChapterTimeStart: 2430761000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 15'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1710886028
mkv debug: | | | | + ChapterTimeStart: 2641138000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 16'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 488518064
mkv debug: | | | | + ChapterTimeStart: 2861858000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 17'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2327362691
mkv debug: | | | | + ChapterTimeStart: 3011675000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 18'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2959560631
mkv debug: | | | | + ChapterTimeStart: 3224220000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 19'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 4051354008
mkv debug: | | | | + ChapterTimeStart: 3408905000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 20'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3429700247
mkv debug: | | | | + ChapterTimeStart: 3604934000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 21'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2651778726
mkv debug: | | | | + ChapterTimeStart: 3821317000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 22'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1751210375
mkv debug: | | | | + ChapterTimeStart: 4038033000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 23'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2739290552
mkv debug: | | | | + ChapterTimeStart: 4289952000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 24'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 2343902381
mkv debug: | | | | + ChapterTimeStart: 4509504000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 25'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 4191529344
mkv debug: | | | | + ChapterTimeStart: 4685847000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 26'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1683197871
mkv debug: | | | | + ChapterTimeStart: 4881243000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 27'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3775172275
mkv debug: | | | | + ChapterTimeStart: 4912340000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 28'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3285108866
mkv debug: | | | | + ChapterTimeStart: 5125453000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 29'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1994244738
mkv debug: | | | | + ChapterTimeStart: 5390384000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 30'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 4261408945
mkv debug: | | | | + ChapterTimeStart: 5655649000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 31'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1430434964
mkv debug: | | | | + ChapterTimeStart: 5717244000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 32'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 932141192
mkv debug: | | | | + ChapterTimeStart: 5912906000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 33'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1516685966
mkv debug: | | | | + ChapterTimeStart: 6190784000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 34'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1898028701
mkv debug: | | | | + ChapterTimeStart: 6212873000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 35'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3440204965
mkv debug: | | | | + ChapterTimeStart: 6437430000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 36'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 1585901488
mkv debug: | | | | + ChapterTimeStart: 6514507000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 37'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 3970553005
mkv debug: | | | | + ChapterTimeStart: 6692852000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 38'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | | | + ChapterAtom (level=0)
mkv debug: | | | | + ChapterUID: 754178233
mkv debug: | | | | + ChapterTimeStart: 6907433000
mkv debug: | | | | + ChapterFlagHidden: no
mkv debug: | | | | + ChapterDisplay
mkv debug: | | | | | + ChapterString 'Chapter 39'
mkv debug: | | | | | + ChapterLanguage 'eng'
mkv debug: | + Void
mkv debug: | + Information
mkv debug: | + Tracks
mkv debug: | + Void
mkv debug: | + Chapters
mkv debug: | + Void
mkv debug: | + Cluster
qt4 debug: IM: Setting an input
mkv debug: Virtual chapter Chapter 01 from 0 to -1 -
mkv debug: Virtual chapter Chapter 02 from 162662000 to -1 -
mkv debug: Virtual chapter Chapter 03 from 455955000 to -1 -
mkv debug: Virtual chapter Chapter 04 from 676008000 to -1 -
mkv debug: Virtual chapter Chapter 05 from 855521000 to -1 -
mkv debug: Virtual chapter Chapter 06 from 1046345000 to -1 -
mkv debug: Virtual chapter Chapter 07 from 1063896000 to -1 -
mkv debug: Virtual chapter Chapter 08 from 1270435000 to -1 -
mkv debug: Virtual chapter Chapter 09 from 1456955000 to -1 -
mkv debug: Virtual chapter Chapter 10 from 1640472000 to -1 -
mkv debug: Virtual chapter Chapter 11 from 1698696000 to -1 -
mkv debug: Virtual chapter Chapter 12 from 1894225000 to -1 -
mkv debug: Virtual chapter Chapter 13 from 2119450000 to -1 -
mkv debug: Virtual chapter Chapter 14 from 2321552000 to -1 -
mkv debug: Virtual chapter Chapter 15 from 2430761000 to -1 -
mkv debug: Virtual chapter Chapter 16 from 2641138000 to -1 -
mkv debug: Virtual chapter Chapter 17 from 2861858000 to -1 -
mkv debug: Virtual chapter Chapter 18 from 3011675000 to -1 -
mkv debug: Virtual chapter Chapter 19 from 3224220000 to -1 -
mkv debug: Virtual chapter Chapter 20 from 3408905000 to -1 -
mkv debug: Virtual chapter Chapter 21 from 3604934000 to -1 -
mkv debug: Virtual chapter Chapter 22 from 3821317000 to -1 -
mkv debug: Virtual chapter Chapter 23 from 4038033000 to -1 -
mkv debug: Virtual chapter Chapter 24 from 4289952000 to -1 -
mkv debug: Virtual chapter Chapter 25 from 4509504000 to -1 -
mkv debug: Virtual chapter Chapter 26 from 4685847000 to -1 -
mkv debug: Virtual chapter Chapter 27 from 4881243000 to -1 -
mkv debug: Virtual chapter Chapter 28 from 4912340000 to -1 -
mkv debug: Virtual chapter Chapter 29 from 5125453000 to -1 -
mkv debug: Virtual chapter Chapter 30 from 5390384000 to -1 -
mkv debug: Virtual chapter Chapter 31 from 5655649000 to -1 -
mkv debug: Virtual chapter Chapter 32 from 5717244000 to -1 -
mkv debug: Virtual chapter Chapter 33 from 5912906000 to -1 -
mkv debug: Virtual chapter Chapter 34 from 6190784000 to -1 -
mkv debug: Virtual chapter Chapter 35 from 6212873000 to -1 -
mkv debug: Virtual chapter Chapter 36 from 6437430000 to -1 -
mkv debug: Virtual chapter Chapter 37 from 6514507000 to -1 -
mkv debug: Virtual chapter Chapter 38 from 6692852000 to -1 -
mkv debug: Virtual chapter Chapter 39 from 6907433000 to -1 -
mkv debug: Virtual chapter from 0 to -1 -
mkv debug: found 3 es
main debug: selecting program id=0
main debug: Buffering 0%
mkv debug: Starting the UI Hook
main debug: using demux module "mkv"
main debug: looking for a subtitle file in D:\Media\Videos\Concerts\
main debug: looking for decoder module matching "any": 38 candidates
avcodec debug: trying to use direct rendering
avcodec debug: allowing 4 thread(s) for decoding
avcodec debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
avcodec debug: using frame thread mode with 4 threads
main debug: using decoder module "avcodec"
main debug: looking for decoder module matching "any": 38 candidates
main debug: using decoder module "flac"
main debug: looking for decoder module matching "any": 38 candidates
main debug: using decoder module "libass"
main debug: looking for meta reader module matching "any": 2 candidates
lua debug: Trying Lua scripts in C:\Users\Stephen\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\Program Files\VideoLAN\VLC\lua\meta\reader
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\meta\reader\filename.luac
main debug: no meta reader modules matched
main debug: `file:///D:/Media/Videos/Concerts/%5BDoremi%5D.Hatsune.Miku.Final.39%27s.Giving.Day.2012.03.09.%5BSEGA%5D.%5B1920x1080%5D.%5BBlu-ray%5D.%5B27F4AA2E%5D.mkv' successfully opened
flac debug: decode STREAMINFO
main debug: Buffering 0%
flac debug: channels:2 samplerate:48000 bitspersamples:24
flac debug: STREAMINFO decoded
main debug: reusing audio output
main debug: Stream buffering done (597 ms in 220 ms)
main debug: trying to reuse free vout
main debug: removing module "freetype"
main debug: looking for text renderer module matching "any": 2 candidates
freetype debug: Using Arial as font from file C:\Windows\Fonts\arial.ttf
freetype debug: using fontsize: 2
main debug: using text renderer module "freetype"
main debug: reusing provided vout
avcodec debug: using direct rendering
waveout debug: Drivername: Microsoft Sound Mapper
waveout debug: Driver Version: 5.0
waveout debug: Manufacturer identifier: 0x1
waveout debug: Product identifier: 0x2
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 error: Breaking unbreakable line
main debug: output 'f32l' 48000 Hz Stereo frame=1 samples/8 bytes
main debug: looking for audio volume module matching "any": 2 candidates
main debug: using audio volume module "float_mixer"
main debug: input 's32l' 48000 Hz Stereo frame=1 samples/8 bytes
main debug: looking for audio filter module matching "scaletempo": 14 candidates
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: conversion: 's32l'->'f32l' 48000 Hz->48000 Hz Stereo->Stereo
main debug: looking for audio converter module matching "any": 12 candidates
audio_format debug: s32l->f32l, bits per sample: 32->32
main debug: using audio converter module "audio_format"
main debug: conversion pipeline complete
main debug: looking for visualization2 module matching "any": 3 candidates
main debug: no visualization2 modules matched
main error: cannot add user filter any (skipped)
main debug: conversion: 'f32l'->'f32l' 48000 Hz->48000 Hz Stereo->Stereo
main debug: conversion pipeline complete
main debug: looking for audio resampler module matching "any": 3 candidates
main debug: using audio resampler module "samplerate"
direct3d debug: Created 1911x150 texture for OSD
main debug: End of audio preroll
main debug: Decoder buffering done in 69 ms
main debug: picture might be displayed late (missing 12 ms)
main debug: auto hiding mouse cursor
mkv debug: NEW CHAPTER 162663000
*****************************************************AUDIO BREAKS HERE

TypX
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Posts: 287
Joined: 21 Oct 2011 15:59

Re: Audio problems in VLC (during video playback)

Postby TypX » 28 Mar 2013 18:55

Ok so it's either a MKV bug or a flac decoding bug, the fact that the audio breaks without a seek is very weird.

Could you please create a sample of your file from the beginning to this point plus a few seconds (I think the first 50/100MB should be enough) and upload it on http://streams.videolan.org/upload with the post URL in the description?

Any file splitter will do the trick and if you choose to upload please test that you reproduce the bug with the sample.

SteeeveWei
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Re: Audio problems in VLC (during video playback)

Postby SteeeveWei » 28 Mar 2013 23:05

I apologize for the delay. It was hard to find a video splitter that could properly encode FLAC.

The video file is named segment1, and if you let the video play by itself until ~2:42, the audio will cut out. Weirdly enough, when you seek to a point after that (after restarting the video first to fix the audio), the audio will continue to function.

TypX
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Joined: 21 Oct 2011 15:59

Re: Audio problems in VLC (during video playback)

Postby TypX » 29 Mar 2013 09:48

I'll check that this week-end, thanks for reporting.

TypX
Developer
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Posts: 287
Joined: 21 Oct 2011 15:59

Re: Audio problems in VLC (during video playback)

Postby TypX » 02 Apr 2013 22:18

OK it looks like a decoder problem... you can temporarily bypass this problem by removing the libflac_plugin.dll in your VideoLAN/VLC/plugins/codec directory. It will fallback to avcodec for that and it will work.

SteeeveWei
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Re: Audio problems in VLC (during video playback)

Postby SteeeveWei » 03 Apr 2013 00:21

Thanks! The videos play back without any problems for now... What exactly do you mean by "temporarily bypass"? Will a more permanent solution appear in a VLC update?

TypX
Developer
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Posts: 287
Joined: 21 Oct 2011 15:59

Re: Audio problems in VLC (during video playback)

Postby TypX » 03 Apr 2013 11:53

Well there is problem and removing a module by hand cannot decently be considered a durable solution. Yet I'm not sure, that it will be fixed soon :/


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