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Hello, I am attempting an flv to mp4 convert. Audio is playing from the video but no image is playing from the video. ANy suggestions? Thank you!


qt debug: MRL(s) passed to the Sout: 1
qt debug: MRL(s) passed to the Sout: file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv
qt debug: Transcode MRL: sout=#transcode{scodec=none}:std{access=file{no-overwrite},mux=mp4,dst='C:/Users/zacha/OneDrive/Desktop/test.mp4'}
main debug: deleting item `Converting file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv'
main info: playlist is empty
main debug: nothing to play
main debug: processing request item: null, node: Playlist, skip: 0
main debug: rebuilding array of current - root Playlist
main debug: rebuild done - 1 items, index -1
main debug: starting playback of new item
main debug: resyncing on Converting file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv
main debug: Converting file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv is at 0
main debug: creating new input thread
main debug: Creating an input for 'Converting file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv'
main debug: requesting art for new input thread
main debug: using sout chain=`transcode{scodec=none}:std{access=file{no-overwrite},mux=mp4,dst='C:/Users/zacha/OneDrive/Desktop/test.mp4'}'
main debug: stream=`std'
main debug: looking for sout stream module matching "std": 23 candidates
main debug: set config option: sout-standard-access to file{no-overwrite}
main debug: set config option: sout-standard-mux to mp4
main debug: set config option: sout-standard-dst to C:/Users/zacha/OneDrive/Desktop/test.mp4
main debug: looking for sout access module matching "file": 10 candidates
main debug: set config option: sout-file-overwrite to (null)
main debug: looking for meta fetcher module matching "any": 1 candidates
lua debug: Trying Lua scripts in C:\Users\zacha\AppData\Roaming\vlc\lua\meta\fetcher
lua debug: Trying Lua scripts in C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\fetcher
file debug: file access output opened (C:/Users/zacha/OneDrive/Desktop/test.mp4)
main debug: no meta fetcher modules matched
main debug: using sout access module "file"
main debug: looking for sout mux module matching "mp4": 11 candidates
main debug: looking for art finder module matching "any": 2 candidates
mp4 debug: Mp4 muxer opened
main debug: using sout mux module "mp4"
stream_out_standard debug: using `file{no-overwrite}/mp4://C:/Users/zacha/OneDrive/Desktop/test.mp4'
main debug: using sout stream module "stream_out_standard"
main debug: stream=`transcode'
main debug: looking for sout stream module matching "transcode": 23 candidates
main debug: set config option: sout-transcode-scodec to none
stream_out_transcode debug: Checking spu codec mapping for none got none
stream_out_transcode debug: codec spu=none
main debug: using sout stream module "stream_out_transcode"
main debug: using timeshift granularity of 50 MiB
main debug: using timeshift path: C:\Users\zacha\AppData\Local\Temp
main debug: `file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv' gives access `file' demux `any' path `/D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv'
main debug: creating demux: access='file' demux='any' location='/D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv' file='D:\15.Timothy Sykes - How to make millions\Video1.flv'
main debug: looking for access_demux module matching "file": 15 candidates
main debug: no access_demux modules matched
main debug: creating access: file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv
main debug: (path: D:\15.Timothy Sykes - How to make millions\Video1.flv)
main debug: looking for access module matching "file": 26 candidates
main debug: using access module "filesystem"
main debug: looking for stream_filter module matching "prefetch,cache_read": 24 candidates
cache_read debug: Using stream method for AStream*
cache_read debug: starting pre-buffering
cache_read debug: received first data after 0 ms
cache_read debug: pre-buffering done 1024 bytes in 0s - 1000000 KiB/s

main debug: using stream_filter module "cache_read"
main debug: looking for stream_filter module matching "any": 24 candidates
lua debug: Trying Lua scripts in C:\Users\zacha\AppData\Roaming\vlc\lua\playlist
lua debug: Trying Lua scripts in C:\Users\zacha\AppData\Roaming\vlc\lua\meta\art
lua debug: Trying Lua scripts in C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist
lua debug: Trying Lua scripts in C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\anevia_streams.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: skipping script (unmatched scope) C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\00_musicbrainz.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\anevia_xml.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\01_googleimage.luac
lua debug: skipping script (unmatched scope) C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\01_googleimage.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\appletrailers.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\02_frenchtv.luac
lua debug: skipping script (unmatched scope) C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\02_frenchtv.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\bbc_co_uk.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\03_lastfm.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\cue.luac
lua debug: skipping script (unmatched scope) C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\art\03_lastfm.luac
main debug: no art finder modules matched
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\dailymotion.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\jamendo.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\koreus.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\liveleak.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\newgrounds.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\rockbox_fm_presets.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\soundcloud.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\twitch.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\vimeo.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\vocaroo.luac
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\playlist\youtube.luac
main debug: no stream_filter modules matched
main debug: looking for stream_directory module matching "any": 1 candidates
main debug: no stream_directory modules matched
main debug: attachment of directory-extractor failed for file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv
main debug: looking for stream_filter module matching "record": 24 candidates
main debug: using stream_filter module "record"
main debug: creating demux: access='file' demux='any' location='/D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv' file='D:\15.Timothy Sykes - How to make millions\Video1.flv'
main debug: looking for demux module matching "any": 55 candidates
main debug: looking for xml reader module matching "any": 1 candidates
main debug: using xml reader module "xml"
webvtt debug: subtitle demux discarded
ts debug: TS module discarded (lost sync)
mod debug: MOD validation failed (ext=flv)
avcodec debug: trying url: D:\15.Timothy Sykes - How to make millions\Video1.flv
avcodec debug: CPU flags: 0x0007d3db
avcodec debug: detected format: flv
qt debug: IM: Setting an input
main debug: selecting program id=0

avcodec debug: adding es: video codec = FLV1 (21)
avcodec debug: adding es: audio codec = mp3 (86017)
avcodec debug: AVFormat(ffmpeg Lavf58.3.100) supported stream
avcodec debug: - format = flv (FLV (Flash Video))
avcodec debug: - start time = 0
avcodec debug: - duration = 10788729000
main debug: using demux module "avcodec"
main debug: looking for a subtitle file in D:\15.Timothy Sykes - How to make millions\
main debug: looking for packetizer module matching "any": 25 candidates
main debug: using packetizer module "copy"
main debug: looking for packetizer module matching "any": 25 candidates
main debug: using packetizer module "mpegaudio"
main debug: starting in sync mode
main debug: looking for meta reader module matching "any": 2 candidates
lua debug: Trying Lua scripts in C:\Users\zacha\AppData\Roaming\vlc\lua\meta\reader
lua debug: Trying Lua scripts in C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\reader
lua debug: Trying Lua playlist script C:\Users\zacha\OneDrive\Desktop\VLC\lua\meta\reader\filename.luac
main debug: no meta reader modules matched
main debug: `file:///D:/15.Timothy%20Sykes%20-%20How%20to%20make%20millions/Video1.flv' successfully opened
main debug: Buffering 0%
main debug: switching to async mode
main debug: Buffering 2%
mpegaudio debug: MPGA channels:2 samplerate:44100 bitrate:128
main debug: adding a new sout input for `mpga` (sout_input: 0000018f6d2eb2c0)
stream_out_transcode debug: not transcoding a stream (fcc=`mpga')
main debug: Buffering 3%
main debug: adding a new input
mp4 debug: adding input
main debug: adding a new sout input for `FLV1` (sout_input: 0000018f6b783780)
stream_out_transcode debug: not transcoding a stream (fcc=`FLV1')
main debug: adding a new input
mp4 error: unsupported codec FLV1 in mp4
main debug: Buffering 5%
main error: cannot add this stream
main warning: new sout input failed (sout_input: 0000018f6b783780)
main error: cannot create packetizer output (FLV1)
main debug: Buffering 6%
main debug: Buffering 7%
main debug: Buffering 10%
main debug: Buffering 13%
main debug: Buffering 15%
main debug: Buffering 16%
main debug: Buffering 18%
main debug: Buffering 20%
main debug: Buffering 23%
main debug: Buffering 26%
main debug: Buffering 28%
main debug: Buffering 30%
main debug: Buffering 31%
main debug: Buffering 33%
main debug: Buffering 36%
main debug: Buffering 39%
main debug: Buffering 40%
main debug: Buffering 41%
main debug: Buffering 43%
main debug: Buffering 44%
main debug: Buffering 46%
main debug: Buffering 49%
main debug: Buffering 50%
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main debug: Buffering 53%
main debug: Buffering 54%
main debug: Buffering 56%
main debug: Buffering 57%
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main debug: Buffering 86%
main debug: Buffering 88%
main debug: Buffering 90%
main debug: Buffering 91%
main debug: Buffering 93%
main debug: Buffering 96%
main debug: Buffering 99%
main debug: Stream buffering done (1001 ms in 5 ms)
main error: buffer deadlock prevented
main debug: Decoder wait done in 0 ms
main debug: EOF reached
main debug: waiting decoder fifos to empty
main debug: killing decoder fourcc `FLV1'
main debug: removing module "copy"
main debug: killing decoder fourcc `mp3 '
main debug: removing module "mpegaudio"
main debug: removing a sout input (sout_input: 0000018f6d2eb2c0)
mp4 debug: tk 1 elst media time 0 duration 10788702000 offset 0
mp4 debug: removing input
main warning: no more input streams for this mux
main debug: removing module "avcodec"
main debug: removing module "record"
main debug: removing module "cache_read"
main debug: removing module "filesystem"
main debug: Program doesn't contain anymore ES
main debug: dead input
main debug: destroying useless sout
main debug: destroying chain... (name=transcode)
main debug: removing module "stream_out_transcode"
main debug: destroying chain done
main debug: destroying chain... (name=std)
main debug: removing module "stream_out_standard"
main debug: removing module "mp4"
mp4 debug: Close
mp4 debug: movie duration 10788s
mp4 debug: created 1 chunks (stco)
qt debug: IM: Deleting the input
main debug: removing module "file"
file debug: file access output closed
main debug: destroying chain done
main debug: changing item without a request (current 0/1)
main debug: nothing to play

There are other reports about conversion issues.

Try with a nightly build:
https://nightlies.videolan.org

Or use a dedicated video tool such as AviDemux:
http://avidemux.sourceforge.net