VLC shows black screen when playing SOME video files

[radar]

when I try to play some mp4 files I recently downloaded from vimeo, VLC shows a black screen while the audio is playing. This just started happening this past week. I've tried the OLD solution of unchecking Accelerated video output but this did not fix the problem.

Thanks for everyone's help
radar

[Fanservice666]

I have the same problem.. for me it started today.. I can't even play videos which I knew were playing a week ago just sound..
I get this error: "Codec wird nicht unterstützt:
VLC konnte das Format „h264“ (H264 - MPEG-4 AVC (part 10)) nicht dekodieren"
english version should be along those lines: "Codec not supported: VLC couldn't decode format "h264" (H264 - MPEG-4 AVC (part 10))"

[radar]

Why would a video that I downloaded from Vimeo using Video Download Helper (add-in for Firefox) be able to be played in Windows Media Player v12.xxx but when I play it in VLC v2.2.4 the audio is fine but the video is just a black screen?

[jetty]

The same issue with files downloaded from Vimeo: the audio stream is being played first, then comes the video stream.

[tgordo49]

Same here, but only with new .mp4 files via firefox vdh. Must be a different codec needed for the DASH-transcoded recordings?? Firefox forums are blowing up over this also.
Help!!!

Why would a video that I downloaded from Vimeo using Video Download Helper (add-in for Firefox) be able to be played in Windows Media Player v12.xxx but when I play it in VLC v2.2.4 the audio is fine but the video is just a black screen?

[skrontle]

I have the same problem. Only mp4 videos that my dashcam creates play as black screens with audio when played with VLC.

On another computer VLC plays all my MP4 files correctly.

I wish somebody would look into this problem.

[Lotesdelere]

Please open Tools -> Messages (set Verbosity to 2) before you start the playback, and then paste the full resulting log here or on Pastebin.com if it's too long.

Also upload a short sample of a problematic file to either http://streams.videolan.org/upload/ or to Zippyshare.com (200 MB max) or to EmbedUpload.com, the latter will upload the file for you to several other hosts (use the default ones) and then post the link to the file here.

If needed cut it with DGsplit and read here about how to do it:
viewtopic.php?f=14&t=57724&p=193335#p193335
50 MB max should be enough.

[tgordo49]

I stopped it after a few seconds of sound. Working on the video clip.


core debug: adding item `Vaccines Revealed Episode One Circle of Docs.mp4' ( file:///C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4 )
core debug: Creating an input for 'Vaccines Revealed Episode One Circle of Docs.mp4'
core debug: processing request item: Vaccines Revealed Episode One Circle of Docs.mp4, node: null, skip: 0
core debug: rebuilding array of current - root Playlist
core debug: rebuild done - 1 items, index 0
core debug: starting playback of the new playlist item
core debug: resyncing on Vaccines Revealed Episode One Circle of Docs.mp4
core debug: Vaccines Revealed Episode One Circle of Docs.mp4 is at 0
core debug: creating new input thread
core debug: Creating an input for 'Vaccines Revealed Episode One Circle of Docs.mp4'
core debug: requesting art for Vaccines Revealed Episode One Circle of Docs.mp4
core debug: using timeshift granularity of 50 MiB, in path 'C:\Users\Tim\AppData\Local\Temp'
core debug: `file:///C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4' gives access `file' demux `' path `/C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4'
core debug: specified demux `any'
core debug: creating demux: access='file' demux='any' location='/C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4' file='C:\Users\Tim\dwhelper\Vaccines Revealed Episode One Circle of Docs.mp4'
core debug: looking for meta fetcher module matching "any": 1 candidates
core debug: looking for access_demux module matching "file": 12 candidates
lua debug: Trying Lua scripts in C:\Users\Tim\AppData\Roaming\vlc\lua\meta\fetcher
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher\tvrage.luac
qt4 debug: IM: Setting an input
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher\tvrage.luac
core debug: no meta fetcher modules matched
core debug: searching art for Vaccines Revealed Episode One Circle of Docs.mp4
core debug: looking for art finder module matching "any": 2 candidates
core debug: no access_demux modules matched
core debug: creating access 'file' location='/C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4', path='C:\Users\Tim\dwhelper\Vaccines Revealed Episode One Circle of Docs.mp4'
core debug: looking for access module matching "file": 21 candidates
filesystem debug: opening file `C:\Users\Tim\dwhelper\Vaccines Revealed Episode One Circle of Docs.mp4'
core debug: using access module "filesystem"
core debug: Using stream method for AStream*
core debug: starting pre-buffering
core debug: received first data after 0 ms
core debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s
core debug: looking for stream_filter module matching "any": 6 candidates
core debug: no stream_filter modules matched
core debug: looking for stream_filter module matching "record": 6 candidates
core debug: using stream_filter module "record"
core debug: creating demux: access='file' demux='any' location='/C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4' file='C:\Users\Tim\dwhelper\Vaccines Revealed Episode One Circle of Docs.mp4'
core debug: looking for demux module matching "mp4": 66 candidates
lua debug: Trying Lua scripts in C:\Users\Tim\AppData\Roaming\vlc\lua\meta\art
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
core debug: no art finder modules matched
core debug: art not found for Vaccines Revealed Episode One Circle of Docs.mp4
mp4 debug: added fragment moov
mp4 debug: dumping root Box "root"
mp4 debug: | + ftyp size 24 offset 0
mp4 debug: | + free size 8 offset 24
mp4 debug: | + mdat size 575975353 offset 32
mp4 debug: | + moov size 2165461 offset 575975385
mp4 debug: | | + mvhd size 108 offset 575975393
mp4 debug: | | + iods size 24 offset 575975501
mp4 debug: | | + trak size 737237 offset 575975525
mp4 debug: | | | + tkhd size 92 offset 575975533
mp4 debug: | | | + edts size 48 offset 575975625
mp4 debug: | | | | + elst size 40 offset 575975633
mp4 debug: | | | + mdia size 737089 offset 575975673
mp4 debug: | | | | + mdhd size 32 offset 575975681
mp4 debug: | | | | + hdlr size 45 offset 575975713
mp4 debug: | | | | + minf size 737004 offset 575975758
mp4 debug: | | | | | + vmhd size 20 offset 575975766
mp4 debug: | | | | | + dinf size 36 offset 575975786
mp4 debug: | | | | | | + dref size 28 offset 575975794
mp4 debug: | | | | | | | + url size 12 offset 575975810
mp4 debug: | | | | | + stbl size 736940 offset 575975822
mp4 debug: | | | | | | + stsd size 168 offset 575975830
mp4 debug: | | | | | | | + avc1 size 152 offset 575975846
mp4 debug: | | | | | | | | + avcC size 50 offset 575975932
mp4 debug: | | | | | | | | + pasp size 16 offset 575975982
mp4 debug: | | | | | | + stts size 24 offset 575975998
mp4 debug: | | | | | | + stss size 11212 offset 575976022
mp4 debug: | | | | | | + stsc size 40 offset 575987234
mp4 debug: | | | | | | + stsz size 720468 offset 575987274
mp4 debug: | | | | | | + stco size 5020 offset 576707742
mp4 debug: | | + trak size 1428084 offset 576712762
mp4 debug: | | | + tkhd size 92 offset 576712770
mp4 debug: | | | + edts size 36 offset 576712862
mp4 debug: | | | | + elst size 28 offset 576712870
mp4 debug: | | | + mdia size 1427948 offset 576712898
mp4 debug: | | | | + mdhd size 32 offset 576712906
mp4 debug: | | | | + hdlr size 45 offset 576712938
mp4 debug: | | | | + minf size 1427863 offset 576712983
mp4 debug: | | | | | + smhd size 16 offset 576712991
mp4 debug: | | | | | + dinf size 36 offset 576713007
mp4 debug: | | | | | | + dref size 28 offset 576713015
mp4 debug: | | | | | | | + url size 12 offset 576713031
mp4 debug: | | | | | + stbl size 1427803 offset 576713043
mp4 debug: | | | | | | + stsd size 103 offset 576713051
mp4 debug: | | | | | | | + mp4a size 87 offset 576713067
mp4 debug: | | | | | | | | + esds size 51 offset 576713103
mp4 debug: | | | | | | + stts size 24 offset 576713154
mp4 debug: | | | | | | + stsc size 14092 offset 576713178
mp4 debug: | | | | | | + stsz size 1408556 offset 576727270
mp4 debug: | | | | | | + stco size 5020 offset 578135826
mp4 debug: unrecognized major file specification (iso5).
mp4 debug: found 2 tracks
mp4 warning: elst box found
mp4 debug: - [0] duration=7512172ms media time=-1ms) rate=1.0
mp4 debug: - [1] duration=0ms media time=83ms) rate=1.0
mp4 debug: track[Id 0x1] read 1251 chunk
mp4 warning: STTS table of 1 entries
mp4 debug: track[Id 0x1] read 180112 samples length:7512s
core debug: selecting program id=0
mp4 debug: adding track[Id 0x1] video (enable) language undef
mp4 warning: elst box found
mp4 debug: - [0] duration=7512171ms media time=0ms) rate=1.0
mp4 debug: track[Id 0x2] read 1251 chunk
mp4 warning: STTS table of 1 entries
mp4 debug: track[Id 0x2] read 352134 samples length:7512s
mp4 debug: adding track[Id 0x2] audio (enable) language undef
mp4 debug: fragment offset 575975385, data 40575975385, duration 0
core debug: using demux module "mp4"
core debug: looking for a subtitle file in C:\Users\Tim\dwhelper\
core debug: looking for decoder module matching "any": 43 candidates
core debug: meta ok for (null), need to fetch art
core debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua scripts in C:\Users\Tim\AppData\Roaming\vlc\lua\meta\fetcher
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher\tvrage.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\fetcher\tvrage.luac
core debug: no meta fetcher modules matched
core debug: searching art for Vaccines Revealed Episode One Circle of Docs.mp4
core debug: looking for art finder module matching "any": 2 candidates
lua debug: Trying Lua scripts in C:\Users\Tim\AppData\Roaming\vlc\lua\meta\art
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\01_googleimage.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\02_frenchtv.luac
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
lua debug: skipping script (unmatched scope) C:\Program Files (x86)\VideoLAN\VLC\lua\meta\art\03_lastfm.luac
core debug: no art finder modules matched
core debug: art not found for Vaccines Revealed Episode One Circle of Docs.mp4
avcodec debug: CPU flags: 0x010010db
avcodec error: Decoder `mp4v' not found
avcodec debug: trying to use direct rendering
avcodec debug: allowing 3 thread(s) for decoding
avcodec warning: threaded frame decoding is not compatible with DXVA2, disabled
avcodec debug: avcodec codec (H264 - MPEG-4 AVC (part 10)) started
avcodec debug: using slice thread mode with 3 threads
core debug: using decoder module "avcodec"
core debug: looking for decoder module matching "any": 43 candidates
core debug: using decoder module "faad"
core debug: looking for meta reader module matching "any": 2 candidates
lua debug: Trying Lua scripts in C:\Users\Tim\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader
lua debug: Trying Lua playlist script C:\Program Files (x86)\VideoLAN\VLC\lua\meta\reader\filename.luac
core debug: no meta reader modules matched
core debug: `file:///C:/Users/Tim/dwhelper/Vaccines%20Revealed%20Episode%20One%20Circle%20of%20Docs.mp4' successfully opened
mp4 debug: elst (0) gives 0ms (movie)-> 0ms (track)
mp4 debug: track[Id 0x2] does not provide Sync Sample Box (stss)
core debug: Buffering 0%
core debug: Buffering 7%
core debug: Buffering 14%
core debug: Buffering 21%
core debug: Buffering 28%
core debug: Buffering 35%
core debug: Buffering 42%
core debug: Buffering 49%
core debug: Buffering 56%
core debug: Buffering 64%
core debug: Buffering 71%
core debug: Buffering 78%
core debug: Buffering 85%
core debug: Buffering 92%
core debug: Buffering 99%
core debug: Stream buffering done (320 ms in 0 ms)
faad warning: decoded zero sample
core debug: reusing audio output
directsound debug: Opening DirectSound Audio Output
directsound debug: Windows speaker config: Stereo and stream has 2 channels, using 2 channels
core debug: output 'f32l' 48000 Hz Stereo frame=1 samples/8 bytes
core debug: looking for audio volume module matching "any": 2 candidates
core debug: using audio volume module "float_mixer"
core debug: input 'f32l' 48000 Hz Stereo frame=1 samples/8 bytes
core 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
core debug: using audio filter module "scaletempo"
core debug: conversion: 'f32l'->'f32l' 48000 Hz->48000 Hz Stereo->Stereo
core debug: conversion pipeline complete
core debug: conversion: 'f32l'->'f32l' 48000 Hz->48000 Hz Stereo->Stereo
core debug: conversion pipeline complete
core debug: looking for audio resampler module matching "any": 3 candidates
core debug: using audio resampler module "samplerate"
core debug: End of audio preroll
core debug: Decoder wait done in 140 ms
core warning: buffer too late (-82334 us): dropped
core warning: buffer too late (-61000 us): dropped
core warning: playback too late (76583): up-sampling
core debug: incoming request - stopping current input
core debug: control: stopping input
core debug: incoming request - stopping current input
core debug: removing module "avcodec"
avcodec debug: ffmpeg codec (H264 - MPEG-4 AVC (part 10)) stopped
core debug: killing decoder fourcc `h264', 0 PES in FIFO
core debug: removing module "faad"
core debug: killing decoder fourcc `mp4a', 0 PES in FIFO
core debug: removing module "samplerate"
core debug: removing module "scaletempo"
directsound debug: closing audio device
core debug: finished input
core debug: removing module "float_mixer"
core debug: keeping audio output
core debug: removing module "mp4"
mp4 debug: freeing all memory
core debug: removing module "record"
core debug: removing module "filesystem"
core debug: Program doesn't contain anymore ES
core debug: incoming request - stopping current input
core debug: dead input
qt4 debug: IM: Deleting the input