no audio - m4a m4b

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cybmole
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no audio - m4a m4b

Postby cybmole » 26 Jul 2009 06:32

i have vlcplayver v1.0 on 2 pcs, both running windows xp & both with a similar collection of other palyers & codes - WMP, Quictime, Zoom player, Powerdvd, ffdshow, 3ivx...

on one of the PCs, none of my .m4a & .m4b files are workign. the codec & file length info looks ok - all the slider controsl work, but there is no audio . I can lsiten to theim in Zoom, WMp, Quicktine, but not in VLC!

But on my other pc the same files all work fine in VLC.

what should I be checking to figure this out / what can I do to fix this. I've tried toggling use system codecs - that makes no difference.

Jean-Baptiste Kempf
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Re: no audio - m4a m4b

Postby Jean-Baptiste Kempf » 26 Jul 2009 11:53

Change audio output module.
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cybmole
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Re: no audio - m4a m4b

Postby cybmole » 26 Jul 2009 12:17

"change audio output module" cannot be the answer.


On both the owrking & non working installations that is set to "default."

but when I play an m4a file on the problem install & watch the stats I see that the file is being demuxed butr that audio blocks decoded stays at zero.
the coecs info page is the same on both PCs, when tested with same file on both.

On the other PC I see the number of audio blocks decoded steadily increasing as the file plays.

so the problem is at the audio decoder stage not out the output stage.

the codecs info page is the same on both PCs, when tested with same file on both.

I should add that other file fomats such as .mp3 are fine on both PCs, and that audio within .avi video files is fine., but if I test with the 4 second sample.mov file that comes with quicktime ( that also has the m4a codec) that is soundless on this PC but OK on the other one.

So, on this PC only ,VLC either can't find an audio decoder for mp4, or is using the wrong one - I suspect the former because VLC "thinks" for a couple of seconds before playing the sample.mov file, as if it is looking for something.

the PCs are in different rooms to a line by line compare of what is in program files is not wasy, but If I knew where to look I could check other stuff..

cybmole
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Re: no audio - m4a m4b

Postby cybmole » 26 Jul 2009 12:47

I've captured some messages - verbosity level 2 stuff from this problem insall. 1. grace.m4a, 2. sample.mov
I guess I just do an inline paste as there's no attach a file option here ?


grace.m4a:

main debug: adding item `02 Grace.m4a' ( C:\MP3\Jeff Buckley\02 Grace.m4a )
qt4 debug: Adding a new MRL to recent ones: C:\MP3\Jeff Buckley\02 Grace.m4a
main debug: rebuilding array of current - root Playlist
main debug: rebuild done - 1 items, index -1
main debug: processing request item 02 Grace.m4a node Playlist skip 0
main debug: resyncing on 02 Grace.m4a
main debug: 02 Grace.m4a is at 0
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for '02 Grace.m4a'
main debug: thread (input) created at priority 1 (../.././src/input/input.c:230)
main debug: thread started
main debug: using timeshift granularity of 50 MBytes
main debug: using timeshift path 'C:\DOCUME~1\dad\LOCALS~1\Temp'
main debug: `C:\MP3\Jeff Buckley\02 Grace.m4a' gives access `' demux `' path `C:\MP3\Jeff Buckley\02 Grace.m4a'
main debug: creating demux: access='' demux='' path='C:\MP3\Jeff Buckley\02 Grace.m4a'
main debug: looking for access_demux module: 3 candidates
main debug: TIMER module_need() : 22.000 ms - Total 22.000 ms / 1 intvls (Avg 22.000 ms)
main debug: creating access '' path='C:\MP3\Jeff Buckley\02 Grace.m4a'
main debug: looking for access module: 5 candidates
vcd debug: trying .cue file: C:\MP3\Jeff Buckley\02 Grace.cue
vcd debug: could not find .cue file
qt4 debug: IM: Setting an input
access_file debug: opening file `C:\MP3\Jeff Buckley\02 Grace.m4a'
main debug: using access module "access_file"
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 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() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 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='C:\MP3\Jeff Buckley\02 Grace.m4a'
main debug: looking for demux module: 50 candidates
mp4 debug: found Box: ftyp size 32
mp4 debug: found Box: moov size 61160
mp4 debug: found Box: mvhd size 108
mp4 debug: read box: "mvhd" creation 731923d-12h:23m:17s modification 731923d-12h:23m:48s time scale 600 duration 694977d-48h:00m:02s rate 1.000000 volume 1.000000 next track id 2
mp4 debug: found Box: trak size 58573
mp4 debug: found Box: tkhd size 92
mp4 debug: read box: "tkhd" creation 731923d-12h:23m:17s modification 731923d-12h:23m:48s duration 694979d-41h:40m:50s track ID 1 layer 0 volume 1.000000 width 0.000000 height 0.000000
mp4 debug: found Box: mdia size 58473
mp4 debug: found Box: mdhd size 32
mp4 debug: read box: "mdhd" creation 731923d-12h:23m:17s modification 731923d-12h:23m:48s time scale 44100 duration 695141d-33h:31m:44s language und
mp4 debug: found Box: hdlr size 34
mp4 debug: read box: "hdlr" handler type soun name
mp4 debug: found Box: minf size 58399
mp4 debug: found Box: smhd size 16
mp4 debug: read box: "smhd" balance 0.000000
mp4 debug: found Box: dinf size 36
mp4 debug: found Box: dref size 28
mp4 debug: found Box: url size 12
mp4 debug: read box: "url" url: (null)
mp4 debug: read box: "dref" entry-count 1
mp4 debug: found Box: stbl size 58339
mp4 debug: found Box: stsd size 103
mp4 debug: found Box: mp4a size 87
mp4 debug: read box: "soun" mp4 or qt1/2 (rest=51)
mp4 debug: found Box: esds size 51
mp4 debug: found esds MPEG4ESDescr (34Bytes)
mp4 debug: found esds MP4DecConfigDescr (20Bytes)
mp4 debug: found esds MP4DecSpecificDescr (2Bytes)
mp4 debug: read box: "soun" in stsd channel 2 sample size 16 sample rate 44100.000000
mp4 debug: read box: "stsd" entry-count 1
mp4 debug: found Box: stts size 24
mp4 debug: read box: "stts" entry-count 1
mp4 debug: found Box: stsc size 40
mp4 debug: read box: "stsc" entry-count 2
mp4 debug: found Box: stsz size 55504
mp4 debug: read box: "stsz" sample-size 0 sample-count 13871
mp4 debug: found Box: stco size 2660
mp4 debug: read box: "co64" entry-count 661
mp4 debug: found Box: udta size 2471
mp4 debug: found Box: meta size 2463
mp4 debug: found Box: hdlr size 34
mp4 debug: read box: "hdlr" handler type mdir name
mp4 debug: found Box: ilst size 652
mp4 debug: found Box: cnam size 29
mp4 debug: read box: "cnam" text=`Grace'
mp4 debug: found Box: cART size 36
mp4 debug: read box: "cART" text=`Jeff Buckley'
mp4 debug: found Box: cwrt size 43
mp4 warning: unknown box type cwrt (incompletely loaded)
mp4 debug: found Box: calb size 29
mp4 debug: read box: "calb" text=`Grace'
mp4 debug: found Box: gnre size 26
mp4 warning: unknown box type gnre (incompletely loaded)
mp4 debug: found Box: trkn size 32
mp4 warning: unknown box type trkn (incompletely loaded)
mp4 debug: found Box: disk size 30
mp4 warning: unknown box type disk (incompletely loaded)
mp4 debug: found Box: cday size 28
mp4 debug: read box: "cday" text=`1994'
mp4 debug: found Box: cpil size 25
mp4 warning: unknown box type cpil (incompletely loaded)
mp4 debug: found Box: tmpo size 26
mp4 warning: unknown box type tmpo (incompletely loaded)
mp4 debug: found Box: ctoo size 57
mp4 warning: unknown box type ctoo (incompletely loaded)
mp4 debug: found Box: ---- size 162
mp4 warning: unknown box type ---- (incompletely loaded)
mp4 debug: found Box: ---- size 121
mp4 warning: unknown box type ---- (incompletely loaded)
mp4 debug: found Box: free size 1765
mp4 debug: skip box: "free"
mp4 debug: found Box: mdat size 5151457
mp4 debug: skip box: "mdat"
mp4 debug: dumping root Box "root"
mp4 debug: | + ftyp size 32
mp4 debug: | + moov size 61160
mp4 debug: | | + mvhd size 108
mp4 debug: | | + trak size 58573
mp4 debug: | | | + tkhd size 92
mp4 debug: | | | + mdia size 58473
mp4 debug: | | | | + mdhd size 32
mp4 debug: | | | | + hdlr size 34
mp4 debug: | | | | + minf size 58399
mp4 debug: | | | | | + smhd size 16
mp4 debug: | | | | | + dinf size 36
mp4 debug: | | | | | | + dref size 28
mp4 debug: | | | | | | | + url size 12
mp4 debug: | | | | | + stbl size 58339
mp4 debug: | | | | | | + stsd size 103
mp4 debug: | | | | | | | + mp4a size 87
mp4 debug: | | | | | | | | + esds size 51
mp4 debug: | | | | | | + stts size 24
mp4 debug: | | | | | | + stsc size 40
mp4 debug: | | | | | | + stsz size 55504
mp4 debug: | | | | | | + stco size 2660
mp4 debug: | | + udta size 2471
mp4 debug: | | | + meta size 2463
mp4 debug: | | | | + hdlr size 34
mp4 debug: | | | | + ilst size 652
mp4 debug: | | | | | + cnam size 29
mp4 debug: | | | | | + cART size 36
mp4 debug: | | | | | + cwrt size 43
mp4 debug: | | | | | + calb size 29
mp4 debug: | | | | | + gnre size 26
mp4 debug: | | | | | + trkn size 32
mp4 debug: | | | | | + disk size 30
mp4 debug: | | | | | + cday size 28
mp4 debug: | | | | | + cpil size 25
mp4 debug: | | | | | + tmpo size 26
mp4 debug: | | | | | + ctoo size 57
mp4 debug: | | | | | + ---- size 162
mp4 debug: | | | | | + ---- size 121
mp4 debug: | | | | + free size 1765
mp4 debug: | + mdat size 5151457
mp4 debug: unrecognized major file specification (M4A ).
mp4 debug: found 1 tracks
mp4 debug: track[Id 0x1] read 661 chunk
mp4 debug: track[Id 0x1] read 13871 samples length:322s
main debug: selecting program id=0
mp4 debug: adding track[Id 0x1] audio (enable) language undef
main debug: using demux module "mp4"
main debug: TIMER module_need() : 7.000 ms - Total 7.000 ms / 1 intvls (Avg 7.000 ms)
mp4 warning: control query 14 unimplemented
mp4 warning: DEMUX_GET_FPS unimplemented !!
main debug: looking for a subtitle file in C:\MP3\Jeff Buckley\
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
main debug: looking for decoder module: 36 candidates
quicktime debug: standard init done
quicktime debug: WantedBufferSize=176400 InputBufferSize=86 OutputBufferSize=176136 FramesToGet=43
quicktime debug: frame size 2 -> 4096
main debug: using decoder module "quicktime"
main debug: TIMER module_need() : 1707.000 ms - Total 1707.000 ms / 1 intvls (Avg 1707.000 ms)
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:315)
main debug: thread started
main debug: `C:\MP3\Jeff Buckley\02 Grace.m4a' successfully opened
mp4 debug: track[Id 0x1] does not provide Sync Sample Box (stss)
main debug: Buffering 0%
main debug: Buffering 0%
main debug: Buffering 33%
main debug: Buffering 66%
main debug: Buffering 100%
main debug: Stream buffering done (400 ms in 0 ms)
main debug: Decoder buffering done in 0 ms
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: New caching: 100
qt4 debug: New caching: 100

sample.mov

main debug: adding item `Sample.mov' ( C:\Program Files\QuickTime\Sample.mov )
qt4 debug: Adding a new MRL to recent ones: C:\Program Files\QuickTime\Sample.mov
main debug: rebuilding array of current - root Playlist
main debug: rebuild done - 2 items, index 0
main debug: processing request item Sample.mov node Playlist skip 0
main debug: resyncing on Sample.mov
main debug: Sample.mov is at 1
main debug: starting new item
main debug: creating new input thread
main debug: Creating an input for 'Sample.mov'
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 'C:\DOCUME~1\dad\LOCALS~1\Temp'
main debug: `C:\Program Files\QuickTime\Sample.mov' gives access `' demux `' path `C:\Program Files\QuickTime\Sample.mov'
main debug: creating demux: access='' demux='' path='C:\Program Files\QuickTime\Sample.mov'
main debug: looking for access_demux module: 3 candidates
main debug: TIMER module_need() : 6.000 ms - Total 6.000 ms / 1 intvls (Avg 6.000 ms)
main debug: creating access '' path='C:\Program Files\QuickTime\Sample.mov'
main debug: looking for access module: 5 candidates
vcd debug: trying .cue file: C:\Program Files\QuickTime\Sample.cue
vcd debug: could not find .cue file
access_file debug: opening file `C:\Program Files\QuickTime\Sample.mov'
main debug: using access module "access_file"
main debug: TIMER module_need() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 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
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
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='C:\Program Files\QuickTime\Sample.mov'
main debug: looking for demux module: 50 candidates
mp4 debug: found Box: ftyp size 32
mp4 debug: found Box: moov size 4304
mp4 debug: found Box: mvhd size 108
mp4 debug: read box: "mvhd" creation 732097d-11h:51m:16s modification 732097d-11h:51m:16s time scale 600 duration 694977d-48h:00m:00s rate 1.000000 volume 0.992188 next track id 3
mp4 debug: found Box: trak size 966
mp4 debug: found Box: tkhd size 92
mp4 debug: read box: "tkhd" creation 732067d-48h:32m:05s modification 732097d-11h:51m:16s duration 694977d-48h:48m:19s track ID 1 layer 0 volume 1.000000 width 0.000000 height 0.000000
mp4 debug: found Box: edts size 36
mp4 debug: found Box: elst size 28
mp4 debug: read box: "elst" entry-count 1
mp4 debug: found Box: mdia size 818
mp4 debug: found Box: mdhd size 32
mp4 debug: read box: "mdhd" creation 732097d-11h:51m:16s modification 732097d-11h:51m:16s time scale 8000 duration 694977d-58h:48m:32s language ```
mp4 debug: found Box: hdlr size 58
mp4 debug: read box: "hdlr" handler type soun name Apple Sound Media Handler
mp4 debug: found Box: minf size 720
mp4 debug: found Box: smhd size 16
mp4 debug: read box: "smhd" balance 0.000000
mp4 debug: found Box: hdlr size 57
mp4 debug: read box: "hdlr" handler type alis name Apple Alias Data Handler
mp4 debug: found Box: dinf size 36
mp4 debug: found Box: dref size 28
mp4 debug: found Box: alis size 12
mp4 warning: unknown box type alis (incompletely loaded)
mp4 debug: read box: "dref" entry-count 1
mp4 debug: found Box: stbl size 603
mp4 debug: found Box: stsd size 203
mp4 debug: found Box: mp4a size 187
mp4 debug: read box: "soun" qt3+ sample/packet=1024 bytes/packet=1 bytes/frame=2 bytes/sample=2
mp4 debug: found Box: wave size 91
mp4 debug: found Box: frma size 12
mp4 debug: read box: "frma" i_type:mp4a
mp4 debug: found Box: mp4a size 12
mp4 warning: Not enough data
mp4 debug: found Box: esds size 51
mp4 debug: found esds MPEG4ESDescr (34Bytes)
mp4 debug: found esds MP4DecConfigDescr (20Bytes)
mp4 debug: found esds MP4DecSpecificDescr (2Bytes)
mp4 debug: found Box: size 8
mp4 warning: unknown box type (incompletely loaded)
mp4 debug: found Box: chan size 44
mp4 warning: unknown box type chan (incompletely loaded)
mp4 debug: read box: "soun" in stsd channel 2 sample size 16 sample rate 8000.000000
mp4 debug: read box: "stsd" entry-count 1
mp4 debug: found Box: stts size 24
mp4 debug: read box: "stts" entry-count 1
mp4 debug: found Box: stsc size 100
mp4 debug: read box: "stsc" entry-count 7
mp4 debug: found Box: stsz size 172
mp4 debug: read box: "stsz" sample-size 0 sample-count 38
mp4 debug: found Box: stco size 96
mp4 debug: read box: "co64" entry-count 20
mp4 debug: found Box: udta size 12
mp4 debug: found Box: trak size 2887
mp4 debug: found Box: tkhd size 92
mp4 debug: read box: "tkhd" creation 732067d-48h:32m:05s modification 732097d-11h:51m:16s duration 694977d-48h:48m:19s track ID 2 layer 0 volume 0.000000 width 192.000000 height 242.000000
mp4 debug: found Box: load size 24
mp4 warning: unknown box type load (incompletely loaded)
mp4 debug: found Box: edts size 36
mp4 debug: found Box: elst size 28
mp4 debug: read box: "elst" entry-count 1
mp4 debug: found Box: mdia size 2715
mp4 debug: found Box: mdhd size 32
mp4 debug: read box: "mdhd" creation 732097d-11h:51m:16s modification 732097d-11h:51m:16s time scale 600 duration 694977d-48h:48m:20s language ```
mp4 debug: found Box: hdlr size 58
mp4 debug: read box: "hdlr" handler type vide name Apple Video Media Handler
mp4 debug: found Box: minf size 2617
mp4 debug: found Box: vmhd size 20
mp4 debug: read box: "vmhd" graphics-mode 64 opcolor (-32768, -32768, -32768)
mp4 debug: found Box: hdlr size 57
mp4 debug: read box: "hdlr" handler type alis name Apple Alias Data Handler
mp4 debug: found Box: dinf size 36
mp4 debug: found Box: dref size 28
mp4 debug: found Box: alis size 12
mp4 warning: unknown box type alis (incompletely loaded)
mp4 debug: read box: "dref" entry-count 1
mp4 debug: found Box: stbl size 2496
mp4 debug: found Box: stsd size 135
mp4 debug: found Box: avc1 size 119
mp4 debug: found Box: avcC size 33
mp4 debug: read box: "avcC" version=1 profile=0x4d level=0xc length size=4 sps=1 pps=1
mp4 debug: - sps[0] length=10
mp4 debug: - pps[0] length=4
mp4 debug: read box: "vide" in stsd 192x242 depth 24
mp4 debug: read box: "stsd" entry-count 1
mp4 debug: found Box: stts size 24
mp4 debug: read box: "stts" entry-count 1
mp4 debug: found Box: ctts size 1160
mp4 debug: read box: "ctts" entry-count 143
mp4 debug: found Box: cslg size 32
mp4 warning: unknown box type cslg (incompletely loaded)
mp4 debug: found Box: stss size 28
mp4 debug: read box: "stss" entry-count 3
mp4 debug: found Box: sdtp size 157
mp4 warning: unknown box type sdtp (incompletely loaded)
mp4 debug: found Box: stsc size 256
mp4 debug: read box: "stsc" entry-count 20
mp4 debug: found Box: stsz size 600
mp4 debug: read box: "stsz" sample-size 0 sample-count 145
mp4 debug: found Box: stco size 96
mp4 debug: read box: "co64" entry-count 20
mp4 debug: found Box: udta size 12
mp4 debug: found Box: udta size 97
mp4 debug: found Box: ccpy size 39
mp4 debug: read box: "ccpy" text=`? Apple Computer, Inc. 2005'
mp4 debug: found Box: cnam size 34
mp4 debug: read box: "cnam" text=`QuickTime Sample Movie'
mp4 debug: found Box: WLOC size 12
mp4 warning: unknown box type WLOC (incompletely loaded)
mp4 debug: found an empty box (null size)
mp4 debug: found Box: meta size 238
mp4 debug: found Box: size 1751411826
mp4 warning: unknown box type (incompletely loaded)
mp4 debug: out of bound child
mp4 debug: found Box: free size 16
mp4 debug: skip box: "free"
mp4 debug: found Box: wide size 8
mp4 debug: skip box: "wide"
mp4 debug: found Box: mdat size 51262
mp4 debug: skip box: "mdat"
mp4 debug: dumping root Box "root"
mp4 debug: | + ftyp size 32
mp4 debug: | + moov size 4304
mp4 debug: | | + mvhd size 108
mp4 debug: | | + trak size 966
mp4 debug: | | | + tkhd size 92
mp4 debug: | | | + edts size 36
mp4 debug: | | | | + elst size 28
mp4 debug: | | | + mdia size 818
mp4 debug: | | | | + mdhd size 32
mp4 debug: | | | | + hdlr size 58
mp4 debug: | | | | + minf size 720
mp4 debug: | | | | | + smhd size 16
mp4 debug: | | | | | + hdlr size 57
mp4 debug: | | | | | + dinf size 36
mp4 debug: | | | | | | + dref size 28
mp4 debug: | | | | | | | + alis size 12
mp4 debug: | | | | | + stbl size 603
mp4 debug: | | | | | | + stsd size 203
mp4 debug: | | | | | | | + mp4a size 187
mp4 debug: | | | | | | | | + wave size 91
mp4 debug: | | | | | | | | | + frma size 12
mp4 debug: | | | | | | | | | + mp4a size 12
mp4 debug: | | | | | | | | | + esds size 51
mp4 debug: | | | | | | | | | + size 8
mp4 debug: | | | | | | | | + chan size 44
mp4 debug: | | | | | | + stts size 24
mp4 debug: | | | | | | + stsc size 100
mp4 debug: | | | | | | + stsz size 172
mp4 debug: | | | | | | + stco size 96
mp4 debug: | | | + udta size 12
mp4 debug: | | + trak size 2887
mp4 debug: | | | + tkhd size 92
mp4 debug: | | | + load size 24
mp4 debug: | | | + edts size 36
mp4 debug: | | | | + elst size 28
mp4 debug: | | | + mdia size 2715
mp4 debug: | | | | + mdhd size 32
mp4 debug: | | | | + hdlr size 58
mp4 debug: | | | | + minf size 2617
mp4 debug: | | | | | + vmhd size 20
mp4 debug: | | | | | + hdlr size 57
mp4 debug: | | | | | + dinf size 36
mp4 debug: | | | | | | + dref size 28
mp4 debug: | | | | | | | + alis size 12
mp4 debug: | | | | | + stbl size 2496
mp4 debug: | | | | | | + stsd size 135
mp4 debug: | | | | | | | + avc1 size 119
mp4 debug: | | | | | | | | + avcC size 33
mp4 debug: | | | | | | + stts size 24
mp4 debug: | | | | | | + ctts size 1160
mp4 debug: | | | | | | + cslg size 32
mp4 debug: | | | | | | + stss size 28
mp4 debug: | | | | | | + sdtp size 157
mp4 debug: | | | | | | + stsc size 256
mp4 debug: | | | | | | + stsz size 600
mp4 debug: | | | | | | + stco size 96
mp4 debug: | | | + udta size 12
mp4 debug: | | + udta size 97
mp4 debug: | | | + ccpy size 39
mp4 debug: | | | + cnam size 34
mp4 debug: | | | + WLOC size 12
mp4 debug: | | + meta size 238
mp4 debug: | | | + size 1751411826
mp4 debug: | + free size 16
mp4 debug: | + wide size 8
mp4 debug: | + mdat size 51262
mp4 debug: unrecognized major file specification (qt ).
mp4 debug: found 2 tracks
mp4 warning: elst box found
mp4 debug: - [0] duration=4831ms media time=0ms) rate=1.0
mp4 debug: track[Id 0x1] read 20 chunk
mp4 debug: track[Id 0x1] read 38 samples length:4s
main debug: selecting program id=0
mp4 debug: adding track[Id 0x1] audio (enable) language en
mp4 warning: elst box found
mp4 debug: - [0] duration=4831ms media time=33ms) rate=1.0
mp4 debug: track[Id 0x2] read 20 chunk
mp4 warning: CTTS table
mp4 debug: track[Id 0x2] read 145 samples length:4s
mp4 debug: adding track[Id 0x2] video (enable) language en
main debug: using demux module "mp4"
main debug: TIMER module_need() : 10.000 ms - Total 10.000 ms / 1 intvls (Avg 10.000 ms)
mp4 warning: control query 14 unimplemented
mp4 warning: DEMUX_GET_FPS unimplemented !!
main debug: looking for a subtitle file in C:\Program Files\QuickTime\
main debug: looking for decoder module: 36 candidates
quicktime debug: standard init done
quicktime debug: WantedBufferSize=32000 InputBufferSize=14 OutputBufferSize=28680 FramesToGet=7
quicktime debug: frame size 2 -> 4097
main debug: using decoder module "quicktime"
main debug: TIMER module_need() : 7.000 ms - Total 7.000 ms / 1 intvls (Avg 7.000 ms)
main debug: thread (decoder) created at priority 2 (../.././src/input/decoder.c:315)
main debug: thread started
main debug: looking for decoder module: 36 candidates
avcodec debug: libavcodec initialized (interface 0x341e02)
avcodec debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) started
main debug: using decoder module "avcodec"
main debug: TIMER module_need() : 53.000 ms - Total 53.000 ms / 1 intvls (Avg 53.000 ms)
main debug: thread (decoder) created at priority 0 (../.././src/input/decoder.c:315)
main debug: thread started
main debug: `C:\Program Files\QuickTime\Sample.mov' successfully opened
mp4 debug: elst (0) gives 0ms (movie)-> 0ms (track)
mp4 debug: track[Id 0x1] does not provide Sync Sample Box (stss)
mp4 debug: elst (0) gives 0ms (movie)-> 33ms (track)
mp4 debug: track[Id 0x2] using Sync Sample Box (stss)
mp4 debug: stts gives 1 --> 0 (sample number)
main debug: Buffering 0%
main debug: Buffering 0%
main debug: Buffering 33%
main debug: Buffering 66%
main debug: Buffering 100%
main debug: Stream buffering done (400 ms in 0 ms)
main debug: no usable vout present, spawning one
main debug: looking for text renderer module: 2 candidates
main debug: thread (fontlist builder) created at priority 0 (../../.././modules/misc/freetype.c:473)
freetype debug: using fontsize: 2
main debug: using text renderer module "freetype"
main debug: TIMER module_need() : 14.000 ms - Total 14.000 ms / 1 intvls (Avg 14.000 ms)
main debug: looking for video filter2 module: 20 candidates
main debug: thread started
freetype debug: Building font database...
freetype debug: Finished building font database.
freetype debug: Took 0 microseconds
main debug: thread ended
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() : 15.000 ms - Total 15.000 ms / 1 intvls (Avg 15.000 ms)
main debug: looking for video filter2 module: 20 candidates
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
yuvp debug: YUVP to YUVA converter
main debug: using video filter2 module "yuvp"
main debug: TIMER module_need() : 30.000 ms - Total 30.000 ms / 1 intvls (Avg 30.000 ms)
main debug: window size: 192x242
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: 192 242
main debug: using hwnd module "qt4"
main debug: TIMER module_need() : 414.000 ms - Total 414.000 ms / 1 intvls (Avg 414.000 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: Radeon X1600/X1650 Series, \\.\DISPLAY1
vout_directx debug: selecting Radeon X1600/X1650 Series, \\.\DISPLAY1
vout_directx debug: screen dimensions (0x0,1360x768)
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() : 455.000 ms - Total 455.000 ms / 1 intvls (Avg 455.000 ms)
main debug: Deinterlacing available
vout_directx debug: NewPictureVec overlay:yes chroma:YV12
qt4 debug: Updating the geometry
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 192x242, of (0,0), vsz 192x242, 4cc I420, ar 342743:432000, sar 1:1, msk r0x0 g0x0 b0x0
main debug: pic in sz 192x242, of (0,0), vsz 192x242, 4cc I420, ar 342743:432000, sar 1:1, msk r0x0 g0x0 b0x0
main debug: pic out sz 192x242, of (0,0), vsz 192x242, 4cc I420, ar 342743:432000, sar 1:1, msk r0x0 g0x0 b0x0
main debug: direct render, mapping render pictures 0-14 to system pictures 1-15
main debug: End of video preroll
main debug: Received first picture
main debug: Decoder buffering done in 553 ms
vout_directx debug: entering fullscreen mode
main warning: late picture skipped (61667 > -10)
main warning: late picture skipped (28334 > -10)
main debug: Post-processing available
freetype debug: using fontsize: 15
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() : 2.000 ms - Total 2.000 ms / 1 intvls (Avg 2.000 ms)
qt4 debug: Qt: Entering Fullscreen
qt4 debug: Qt4: Fullscreen state changed
qt4 debug: Qt: Entering Fullscreen
main debug: EOF reached
main debug: finished input
main debug: thread times: real 0m4.921875s, kernel 0m0.000000s, user 0m0.000000s
quicktime debug: SoundConverterEndConversion => 0
quicktime debug: SoundConverterClose => 2752512
quicktime debug: FreeLibrary ok.
main debug: removing module "quicktime"
main debug: killing decoder fourcc `mp4a', 0 PES in FIFO
main debug: thread times: real 0m4.875000s, kernel 0m0.078125s, user 0m0.046875s
avcodec debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) stopped
main debug: removing module "avcodec"
main debug: killing decoder fourcc `avc1', 0 PES in FIFO
main debug: [0] 2 0
main debug: [1] 2 0
main debug: [2] 2 0
main debug: [3] 2 0
main debug: [4] 2 0
main debug: [5] 2 0
main debug: [6] 2 0
main debug: [7] 2 0
main debug: [8] 2 0
main debug: [9] 2 0
main debug: [10] 2 0
main debug: [11] 2 0
main debug: [12] 2 0
main debug: [13] 2 0
main debug: [14] 4 0
main debug: saving a free vout
mp4 debug: freeing all memory
main debug: removing module "mp4"
main debug: removing module "stream_filter_record"
main debug: removing module "access_file"
main debug: Program doesn't contain anymore ES
main debug: thread ended
main debug: dead input
main debug: thread times: real 0m4.953125s, kernel 0m0.046875s, user 0m0.031250s
main debug: changing item without a request (current 1/2)
main debug: nothing to play
main debug: destroying useless vout
vout_directx debug: leaving fullscreen mode
qt4 debug: IM: Deleting the input
qt4 debug: Updating the geometry
qt4 debug: Updating the geometry
qt4 debug: Qt: Entering Fullscreen
main debug: TIMER input launching for 'Sample.mov' : 94.000 ms - Total 94.000 ms / 1 intvls (Avg 94.000 ms)
vout_directx debug: DirectXCloseSurface
vout_directx debug: DirectXCloseDisplay
vout_directx debug: DirectXCloseDisplay clipper
vout_directx debug: DirectXCloseDisplay display
vout_directx debug: DirectXCloseDDraw
vout_directx debug: DirectXEventThread terminating
vout_directx debug: DirectXCloseWindow
vout_directx debug: WinProc WM_DESTROY
qt4 debug: releasing video...
qt4 debug: Video is not needed anymore
qt4 debug: Updating the geometry
main debug: removing module "qt4"
main debug: thread ended
main debug: thread times: real 0m5.015625s, kernel 0m0.125000s, user 0m0.015625s
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: removing module "freetype"
main debug: removing module "yuvp"
main debug: removing module "swscale"

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Re: no audio - m4a m4b

Postby VLC_help » 27 Jul 2009 14:15

There isn't a single message in those logs saying anything about aout (audio output module), so have you tried different audio output module as suggested earlier? Do other media players play sound?
http://wiki.videolan.org/WindowsFAQ-1.0 ... _anomalies

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Re: no audio - m4a m4b

Postby cybmole » 30 Jul 2009 08:00

There isn't a single message in those logs saying anything about aout (audio output module), so have you tried different audio output module as suggested earlier? Do other media players play sound?
http://wiki.videolan.org/WindowsFAQ-1.0 ... _anomalies
Yes and Yes - as previously stated these files work OK in WMP, zoom, quicktime.... and on my other PC with the same preferences settings they even work in VLC!. Audio for other formats e.g. mp3. avi. works fine on both PCs

surely this line in the logs is a major clue!
"mp4 debug: unrecognized major file specification (M4A )."

Please note also my previous description of what appears in the detailed codecs window as the files are playing - on the working PC I see the number of audio blocks decoded steadily increasing as the file plays - but on the problem PC it is stuck at zero - to my non-tech brain that indicates problem with audio decoder ???

Please see also a thread by a different poster titled "mp4 does not wotk in vlc 1.0" or something similar - I would suggest combining the two threads. He "solved" the problem by reverting to v0.96 - I no longer have that version of the installer so I can't test his solution.

MORE TESTS:
1. upgraded to v1.01 on both PCs - no change
2. compared file sizes & versions numbers of .DLL files in VIDEOLAN folder in program files - same on both PCs
3. looked again at all preferences settings - can't find any differences or anyway to tweak for .m4A playback

So help please - I'm stuck / out of ideas - one pC plays m4a, the other doesn't - still..

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Re: no audio - m4a m4b

Postby VLC_help » 31 Jul 2009 13:29

Does the playback work correctly if you start VLC with --codec=faad option?

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Re: no audio - m4a m4b

Postby cybmole » 31 Jul 2009 14:10

yes - I've no idea what that option does but I tried it on one of the previous files - grace.m4a - and it worked fine.

please explain what that reveals ???

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Re: no audio - m4a m4b

Postby jeroensky » 01 Aug 2009 13:11

surely this line in the logs is a major clue!
"mp4 debug: unrecognized major file specification (M4A )."

Please see also a thread by a different poster titled "mp4 does not wotk in vlc 1.0" or something similar - I would suggest combining the two threads. He "solved" the problem by reverting to v0.96 - I no longer have that version of the installer so I can't test his solution.
<cut> reason: posting below, no merging :D

Oh VLC v.0.9.6, see posting below.
Last edited by jeroensky on 02 Aug 2009 13:34, edited 2 times in total.
My mobile {PSP} linksite. .:: http://sites.google.com/site/jeroenskyterritory/ ::.

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Re: no audio - m4a m4b

Postby VLC_help » 01 Aug 2009 16:44

please explain what that reveals ???
VLC uses wrong decoder for audio which is why there is some issue.

jeroensky:
official older VLC versions can be found from
http://download.videolan.org/pub/videolan/vlc/
and we don't merge topics.

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Re: no audio - m4a m4b

Postby cybmole » 01 Aug 2009 16:50

please explain what that reveals ???
VLC uses wrong decoder for audio which is why there is some issue.

jeroensky:
official older VLC versions can be found from
http://download.videolan.org/pub/videolan/vlc/
and we don't merge topics.
that's a good partial explanation - but why does in only happen in some installs, not in all installs - in my case on only one of two PCs ???

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Re: no audio - m4a m4b

Postby VLC_help » 04 Aug 2009 21:37

I am assuming that the QuickTime module isn't used if machine doesn't have QuickTime installed.

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Re: no audio - m4a m4b

Postby fkuehne » 04 Aug 2009 23:22

The QuickTime (and especially any potential QT for Win32 installation) module is not used for any useful purpose and is certainly not required to play AAC encoded audio files. These are supported in both VLC 1.0.0 and 1.0.1. It is not possible to create those files with the mentioned version, but playback is definitely working.
Therefore, the problem is located somewhere else. Do you guys get any audio output from VLC?
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Re: no audio - m4a m4b

Postby cybmole » 05 Aug 2009 08:32

...Therefore, the problem is located somewhere else. Do you guys get any audio output from VLC?
yes - already answered that twice!
please read the whole thread before jumping in.

to recap again:
I have two similar PCs - VLC audio for all file types works fine on one PC, but on the other PC the file types those which require M4A decode have no audio output in VLC ( yet work in other players). But they do play in VLC if the VLC command line option codec=faad is added.

so its an audio decoder problem which another poster says occured only after v0.96

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Re: no audio - m4a m4b

Postby fkuehne » 05 Aug 2009 08:38

Smells a lot like broken preferences on the PC with the non-working AAC output. You can reset both Preferences and Cache using an entry in your start menu. Does this solve the issue?
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Re: no audio - m4a m4b

Postby cybmole » 05 Aug 2009 08:53

Smells a lot like broken preferences on the PC with the non-working AAC output. You can reset both Preferences and Cache using an entry in your start menu. Does this solve the issue?
That is possible as I alwasy keep preferences when upgarding
I have not tried that solution yet because i spent ages customising hotkeys so that I could use VLC with a remote control- is there a way to save those & reset everything else, or is there a way to copy all preferences from the othe PC, which has the same hot key settings.

PS I looked in various places for a "cache" to delete manually but no obvious candidates. whre is it & what files should be removed please.

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Re: no audio - m4a m4b

Postby fkuehne » 05 Aug 2009 09:43

VLC's config file is C:\Documents and Settings\username\Application Data\vlc\vlcrc

I recommend you clean up using the start menu entry and then copy over the preferences file from your working PC.
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Re: no audio - m4a m4b

Postby cybmole » 05 Aug 2009 10:02

VLC's config file is C:\Documents and Settings\username\Application Data\vlc\vlcrc

I recommend you clean up using the start menu entry and then copy over the preferences file from your working PC.
OK - I'll try that & report back

YES - complete success - thanks.

if the preferences file had a more user friendly name - like preferences! - I would have tried that long ago, but I had no idea which file(s) to copy.

many thanks.

now if the other poster is still lurking maybe he could try the same fix & report back ?

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Re: no audio - m4a m4b

Postby cybmole » 05 Aug 2009 23:06

cancel the celebration - audio has gone a.w.o.l. again!

all I did was watched a few .avi files & tweaked a few preferences that had gone missing after I had reset cache & preferences & then copied over my preferences from my other install
a.f.a.i.k, , all that I tweaked were .avi preferences e.g. I was experimenting with interlace & post processing settings & removing slawasy on top so that start in full screen would work OK
then I tried one of the .m4b audio book files again & got silence. retried the exact same .m4a file that had worked after following the above instructions & that has also now gone silent.any ideas anyone ?

so another day another test sequence ( PC has been on standby since I wrote the previous paragraph):
I check that sound is still broken then I
1. back up my preferences file, reset VLCcache & preferences, restore my preferences file, test .m4a & .m4b - still no sound
2. reset cache & preferences again- but do not restore my preferences file - test the same files -sound is now OK again

so something I did to preferences in the last 24 hours has seemingly caused the bug to re-appear.

OK - now comes the illogical part - it's working so I try various tweaks to audio preferences (e.g. chanign default output to directX ) - to see if I can make the audio fail again.
- I'm careful to save preferences, close & restart player after every change.
- I can't break it, so I figure I'll restore the preferences file which I copied & saved in step 1 above , as that should break it.
- So I reset VLC, restore that preferences file & restest with M4B but this time sound is still OK
- This seems illogical.

So, in summary, as at now the sound is working & I can't break it, but it did break earlier & briefly seemed to be a reproducible error.
I wondered if it could be linked somehow to placing the PC in standby while VLC is active ( by pressing the standby button on the remote) so I tested doing that but sound still worked after coming out of standby
, so I think I'll quit while I'm winning, for now anyway.

without knowing more about how the VLC cache works , I can't puzzle this out

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Re: no audio - m4a m4b

Postby zachbud » 11 Aug 2009 04:10

Thanks to Fkuehne and other contributors!

I confirm that this fix worked for me.

My situation:
All audio worked with prior version of VLC (I think I was running 0.9.6, as there was multi monitor issues with subsequent versions)
I recently switched to 1.0.0 (apparently there is 1.0.1 already, which I haven't yet upgraded too)
At that time I started having no audio issues with a handful of formats on videos that worked fine in 0.9.6. I noticed it wasn't trying to decode any audio frames... they weren't dropped or decoding without hearing any audio... there was just 0 audio frames.

I copied my vlcrc file and then did the preference reset. The audio now worked in these videos.
I put the old vlcrc file back and the audio stopped working.
I reset preferences again and all works (at least as of today)

Thanks guys!

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Re: no audio - m4a m4b

Postby cybmole » 01 Sep 2009 09:20

the fixes ( reset preferences, clear cache ) given so far do not work permanently.

once again I find that my "fixed" version of VLv1.01 - after using it for other videos for a few days - is again not playing the m4a, m4b sound, the exact same problwm which started the thread - dot decoding any audio frames.

So is it going to be properly fixed in a future release ?

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Re: no audio - m4a m4b

Postby cybmole » 04 Sep 2009 14:31

this M4A bug is becoming really annoying.

ONce again i find myself wanting to watch a Hi-DEf movie with M4A encoded soundtrack & getting no sound.

so once again i go throuhg the steps of 1. backup vlcrc, 2. reset cache & preferences from start menu - 3. test & get sound back but lose all my hot key customisations in the process.

If i then 4. restore my backup of vlcrc - the sound vanishes again. I then (step 5.) reset cache & preferences again - sound returns

step 6. I laboriously redo all my hotkey personalisations - sound is still working - for now.

So - having proved that the bug is not caused by my choice of hot keys - how can I save them so as not to have to redo them every time that the cache needs resetting ???
or - to put it abother way - can I reset only the cache ?

it seems pretty clear that the problem is not with my preferred choice preferences, as there is nothing else significant that I would normally change in preferences - except to have start up in full screen, and maybe to have directx rendering so as to get wallpaper mode option. to have " never ask" for broken .avi and to have highest post processing levels. none of of those when applied individually cause the m4A sound to vanish, the sound just goes a.w.o.l ( ON THIS PC ONLY) only after a few days of "normal" usage - e.g. watching vanilla .AVi files.

AND/OR - TO FIX this another way - we established earlier in the thread that"start VLC with --codec=faad option" is a valid workaround, so is there any way to configure VLC to use that as a default i.e. so when I start a movie by doubling clicking on the movie file it will launch VLC with that option applied ? I think what's significant here how is this test

I restore my "broken" preferences again and create 2 desktop shotcuts for VLC - one is the standard shortcurt from start menu - the other has the -codec=faad addtion to its command line. calll them 1 & 2 for now.
Now if I launch VlC with shortcut 1 & drag+drop the movie I get no sound. Close it & repeat with shoretcurt 2 & I get sound OK. I can go back and forth between the 2 options & get consistent no sound - sound and in both cases i am using THE SAME VLCRC PREFERENCE file .

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Re: no audio - m4a m4b

Postby perakojot » 06 Sep 2009 06:43

try this:

preferences (advanced)
-> input / codecs (this branch, not any of the children)
---> preferred decoders list (scroll alll the way down)
-----> enter "mp4,aac,faad," before anything already in the edit box

my box had quicktime (and twice)..

i had a similar (same?) problem with mp4a.. after reading this thread, i tried the above, and.. now it works.. i'm still not sure why.. i feel like such a (l)user.. ;)

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Re: no audio - m4a m4b

Postby cybmole » 06 Sep 2009 07:49

try this:

preferences (advanced)
-> input / codecs (this branch, not any of the children)
---> preferred decoders list (scroll alll the way down)
-----> enter "mp4,aac,faad," before anything already in the edit box

my box had quicktime (and twice)..

i had a similar (same?) problem with mp4a.. after reading this thread, i tried the above, and.. now it works.. i'm still not sure why.. i feel like such a (l)user.. ;)
OK, I'll check that out.. ON this PC (which always works), that entry box is blank. I'll go see what the problem PC says & report back.

OK - the problem PC that box said "faad,dmo,quicktime,dmo,quicktime"

so I conclude
1.that resetting preferences does NOT reset this box.
2. that finally I've found a difference between the VLC settings on the workign and on the problem PC.
3. we may be on the verge of solving the case !

I'm guessing that "faad" was in the box becase of earlier experiments, and that having "quicktime" in the box maybe the bug causer.
I don't know what having DMo in the box does or did

Anyway, rather than type in the suggested values, I have deleted everytihng in the box as per the setting on my working PC & will see how well it behaves going forward.

Can anyone shed any light
a) on what the DMO setting does and
b) on how those entires ever came to be there - I had never previously put anything into that preferred decoders field!

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Re: no audio - m4a m4b

Postby MikeWWW » 06 Sep 2009 09:53

Thank goodness I found this timely thread as I had near-identical situation where m4a produced no audio. The problem must have started recently (some time after installing 1.01) but putting those extra codecs at the start of the preferences line seemed to do the trick. The command line option didn't work at all.


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