Eu estava gravando um vídeo com um celular Android por um minuto apenas para descobrir que o telefone estava desligado no momento em que parei de gravar. Por que desligá-lo, não tenho idéia, pois a bateria era "azul" ainda, e não "laranja". De qualquer forma, o VLC se recusa a reproduzir o arquivo. As ferramentas para recuperar vídeos são bastante caras, e a ferramenta mais aclamada, Video Repair, mostra apenas uma prévia de alguns segundos, o que supostamente representa 50% de toda a duração do vídeo recuperado. Assim, concluo que só pode recuperar cerca de 10 segundos do vídeo de um minuto.
Aqui está o log do VLC no nível de detalhamento 2:
main debug: processing request item: VID_20170203_194303.mp4, node: Playlist, skip: 0
main debug: resyncing on VID_20170203_194303.mp4
main debug: VID_20170203_194303.mp4 is at 0
main debug: starting playback of the new playlist item
main debug: resyncing on VID_20170203_194303.mp4
main debug: VID_20170203_194303.mp4 is at 0
main debug: creating new input thread
main debug: Creating an input for 'VID_20170203_194303.mp4'
main debug: using timeshift granularity of 50 MiB, in path 'C:\Users\X5650\AppData\Local\Temp'
main debug: 'file:///C:/Users/X5650/Documents/VID_20170203_194303.mp4' gives access 'file' demux '' path '/C:/Users/X5650/Documents/VID_20170203_194303.mp4'
main debug: creating demux: access='file' demux='' location='/C:/Users/X5650/Documents/VID_20170203_194303.mp4' file='C:\Users\X5650\Documents\VID_20170203_194303.mp4'
main debug: looking for access_demux module matching "file": 12 candidates
main debug: no access_demux modules matched
main debug: creating access 'file' location='/C:/Users/X5650/Documents/VID_20170203_194303.mp4', path='C:\Users\X5650\Documents\VID_20170203_194303.mp4'
main debug: looking for access module matching "file": 20 candidates
filesystem debug: opening file 'C:\Users\X5650\Documents\VID_20170203_194303.mp4'
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 "record": 6 candidates
main debug: using stream_filter module "record"
main debug: creating demux: access='file' demux='' location='/C:/Users/X5650/Documents/VID_20170203_194303.mp4' file='C:\Users\X5650\Documents\VID_20170203_194303.mp4'
main debug: looking for demux module matching "mp4": 63 candidates
mp4 debug: dumping root Box "root"
mp4 debug: | + ftyp size 24
mp4 debug: | + free size 405000
mp4 debug: | + mdat size 1061109567
mp4 debug: 3GPP Media file Release: 4
mp4 error: MP4 plugin discarded (no moov,foov,moof box)
es error: cannot peek
es error: cannot peek
es error: cannot peek
es error: cannot peek
es error: cannot peek
playlist debug: not enough data
playlist debug: not enough data
mod debug: MOD validation failed (ext=mp4)
ps error: cannot peek
mpgv error: cannot peek
mjpeg warning: no more data
mjpeg error: cannot peek
avcodec debug: trying url: C:\Users\X5650\Documents\VID_20170203_194303.mp4
avcodec warning: cannot peek
lua debug: Trying Lua scripts in C:\Users\X5650\AppData\Roaming\vlc\lua\playlist
lua debug: Trying Lua scripts in C:\Program Files\VideoLAN\VLC\lua\playlist
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\anevia_streams.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\anevia_xml.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\appletrailers.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\bbc_co_uk.luac
qt4 debug: IM: Setting an input
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\break.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\canalplus.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\cue.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\dailymotion.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\extreme.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\france2.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\googlevideo.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\jamendo.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\joox.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\katsomo.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\koreus.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\lelombrik.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\liveleak.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\metacafe.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\metachannels.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\mpora.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\pinkbike.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\pluzz.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\rockbox_fm_presets.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\soundcloud.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\vimeo.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\youtube.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\youtube_homepage.luac
lua debug: Trying Lua playlist script C:\Program Files\VideoLAN\VLC\lua\playlist\zapiks.luac
ps error: cannot peek
vobsub debug: could not read vobsub IDX file
main debug: no demux modules matched
main error: no suitable demux module for 'file/:///C:/Users/X5650/Documents/VID_20170203_194303.mp4'
main debug: removing module "record"
main debug: removing module "filesystem"
main debug: finished input
main debug: dead input
main debug: changing item without a request (current 0/1)
main debug: nothing to play
qt4 debug: IM: Deleting the input