Jtdylktuy

I've got a udp stream (not accesible to the outside world) that VLC has able to play under Linux, but isn't able in Windows. Windows Firewall is turned off. In order to test the udp stream in VLC, I temporarily turned off the antivirus' (ESET Smart Security) firewall, and VLC still wouldn't playback the stream.

How could I investigate what might be blocking the playback of the stream? What's different between Linux and Windows in this regard? Should I inspect the packets in Wireshark, would it help - and if so, what should I exactly look for?

edit: I was pointed at the VLC's "Messages" function. So here are both Linux's and Windows' VLC messages:

Windows

main debug: adding item `udp://238.1.3.1:1234' ( udp://@238.1.3.1:1234 )

qt4 debug: Adding a new MRL to recent ones: udp://@238.1.3.1:1234

main debug: processing request item: udp://238.1.3.1:1234, node: null, skip: 0

main debug: rebuilding array of current - root Playlist

main debug: rebuild done - 1 items, index 0

main debug: starting playback of the new playlist item

main debug: resyncing on udp://238.1.3.1:1234

main debug: udp://238.1.3.1:1234 is at 0

main debug: creating new input thread

main debug: Creating an input for 'udp://238.1.3.1:1234'

main debug: no fetch required for (null) (art currently (null))

main debug: using timeshift granularity of 50 MiB, in path 'C:UsersJohnAppDataLocalTemp'

main debug: `udp://@238.1.3.1:1234' gives access `udp' demux `' path `@238.1.3.1:1234'

main debug: creating demux: access='udp' demux='' location='@238.1.3.1:1234' file='\@238.1.3.1:1234'

main debug: looking for access_demux module matching "udp": 12 candidates

main debug: no access_demux modules matched

main debug: creating access 'udp' location='@238.1.3.1:1234', path='\@238.1.3.1:1234'

main debug: looking for access module matching "udp": 20 candidates

access_udp debug: opening server=:0 local=238.1.3.1:1234

main debug: net: opening 238.1.3.1 datagram port 1234

qt4 debug: IM: Setting an input

main debug: using access module "access_udp"

main debug: Using block method for AStream*

main debug: starting pre-buffering

qt4 debug: IM: Setting an input

Linux

main debug: adding item `udp://238.1.3.1:1234' ( udp://@238.1.3.1:1234 )

qt4 debug: Adding a new MRL to recent ones: udp://@238.1.3.1:1234

main debug: processing request item: udp://238.1.3.1:1234, node: null, skip: 0

main debug: no fetch required for (null) (art currently (null))

main debug: rebuilding array of current - root Playlist

main debug: rebuild done - 1 items, index 0

main debug: starting playback of the new playlist item

main debug: resyncing on udp://238.1.3.1:1234

main debug: udp://238.1.3.1:1234 is at 0

main debug: creating new input thread

main debug: Creating an input for 'udp://238.1.3.1:1234'

main debug: using timeshift granularity of 50 MiB, in path '/tmp'

main debug: `udp://@238.1.3.1:1234' gives access `udp' demux `' path `@238.1.3.1:1234'

main debug: creating demux: access='udp' demux='' location='@238.1.3.1:1234' file='(null)'

main debug: looking for access_demux module matching "udp": 20 candidates

main debug: no access_demux modules matched

main debug: creating access 'udp' location='@238.1.3.1:1234', path='(null)'

main debug: looking for access module matching "udp": 25 candidates

access_udp debug: opening server=:0 local=238.1.3.1:1234

main debug: net: opening 238.1.3.1 datagram port 1234

main debug: using access module "access_udp"

main debug: Using block method for AStream*

main debug: starting pre-buffering

qt4 debug: IM: Setting an input

main debug: received first data after 16 ms

main debug: prebuffering done 1316 bytes in 0s - 75 KiB/s

main debug: looking for stream_filter module matching "any": 9 candidates

main debug: no stream_filter modules matched

main debug: looking for stream_filter module matching "record": 9 candidates

main debug: using stream_filter module "record"

main debug: creating demux: access='udp' demux='' location='@238.1.3.1:1234' file='(null)'

main debug: looking for demux module matching "any": 63 candidates

ts debug: pid[704] unknown

ts debug: pid[804] unknown

ts debug: pid[204] unknown

ts debug: pid[811] unknown

ts debug: pid[8041] unknown

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: PATCallBack called

ts debug: new PAT ts_id=1 version=4 current_next=1

ts debug: * number=1 pid=204

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: PMTCallBack called

ts debug: new PMT program number=1 version=14 pid_pcr=704

ts debug: * es pid=704 type=2 dr->i_tag=0x2

ts debug: * es pid=704 type=2 fcc=mpgv

main debug: selecting program id=1

ts debug: * es pid=804 type=3 dr->i_tag=0xa

ts debug: found language: est

ts debug: * es pid=804 type=3 fcc=mpga

ts debug: * es pid=811 type=3 dr->i_tag=0xa

ts debug: found language: nld

ts debug: * es pid=811 type=3 fcc=mpga

ts debug: * es pid=8041 type=6 dr->i_tag=0x45

ts debug: * es pid=8041 type=6 fcc=telx

access_udp warning: unimplemented query in control

main debug: using demux module "ts"

main debug: looking for decoder module matching "any": 39 candidates

avcodec debug: trying to use direct rendering

avcodec debug: allowing 4 thread(s) for decoding

avcodec debug: avcodec codec (MPEG-1/2 Video) started

avcodec debug: using slice thread mode with 4 threads

main debug: using decoder module "avcodec"

main debug: looking for packetizer module matching "any": 21 candidates

main debug: using packetizer module "packetizer_mpegvideo"

main debug: looking for decoder module matching "any": 39 candidates

main debug: using decoder module "mpeg_audio"

ts debug: DEMUX_SET_GROUP 0 (nil)

access_udp warning: unimplemented query in control

main debug: looking for meta reader module matching "any": 2 candidates

lua debug: Trying Lua scripts in /home/mint/.local/share/vlc/lua/meta/reader

lua debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/reader

lua debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/reader/filename.luac

lua debug: Trying Lua scripts in /usr/share/vlc/lua/meta/reader

main debug: no meta reader modules matched

main debug: `udp://@238.1.3.1:1234' successfully opened

ts warning: first packet for pid=704 cc=0xc

ts warning: first packet for pid=804 cc=0x7

main debug: Buffering 0%

ts warning: first packet for pid=8041 cc=0x3

main debug: Buffering 2%

main debug: Buffering 4%

main debug: Buffering 7%

packetizer_mpegvideo debug: waiting for sequence start

ts debug: pid[1] unknown

main debug: Buffering 9%

main debug: Buffering 12%

packetizer_mpegvideo debug: waiting for sequence start

main debug: Buffering 14%

main debug: Buffering 17%

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

packetizer_mpegvideo debug: waiting for sequence start

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

main debug: Buffering 19%

packetizer_mpegvideo debug: waiting for sequence start

main debug: Buffering 22%

main debug: Buffering 25%

packetizer_mpegvideo debug: waiting for sequence start

main debug: Buffering 27%

main debug: Buffering 29%

packetizer_mpegvideo debug: waiting for sequence start

mpeg_audio debug: MPGA channels:2 samplerate:48000 bitrate:192

main debug: reusing audio output

pulse debug: using stereo channel map

pulse debug: changed buffer metrics: maxlength=4194304, tlength=46080, prebuf=0, minreq=15360

pulse debug: connected to sink alsa_output.pci-0000_00_1b.0.analog-stereo

main debug: output 'f32l' 44100 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 'mpga' 48000 Hz Stereo frame=1152 samples/1161 bytes

main debug: looking for audio filter module matching "scaletempo": 14 candidates

pulse debug: base volume: 65536

pulse debug: changing sink 0: alsa_output.pci-0000_00_1b.0.analog-stereo (Built-in Audio Analog Stereo)

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: 'mpga'->'f32l' 48000 Hz->48000 Hz Stereo->Stereo

main debug: looking for audio converter module matching "any": 12 candidates

main debug: no audio converter modules matched

main debug: looking for audio converter module matching "any": 12 candidates

mpgatofixed32 debug: mpga->f32l, bits per sample: 32

main debug: using audio converter module "mpgatofixed32"

main debug: conversion pipeline complete

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"

main debug: End of audio preroll

main debug: Buffering 32%

packetizer_mpegvideo debug: waiting for sequence start

main debug: Buffering 35%

main debug: Buffering 37%

packetizer_mpegvideo debug: waiting for sequence start

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

main debug: Buffering 39%

main debug: Buffering 42%

ts debug: PSINewTableCallBack: table 0x42(66) ext=0x1(1)

ts debug: libdvbpsi (SDT decoder): Table version 8, i_extension 1, section 0 up to 0, current 1

ts debug: SDTCallBack called

ts debug: new SDT ts_id=1 version=8 current_next=1 network_id=65280

ts debug: * service id=1 eit schedule=0 present=0 running=4 free_ca=0

main debug: EsOutProgramMeta: number=1

main debug: Buffering 45%

main debug: Buffering 47%

main debug: Buffering 49%

main debug: Buffering 52%

main debug: Buffering 54%

main debug: Buffering 57%

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

main debug: Buffering 59%

packetizer_mpegvideo debug: waiting for sequence start

packetizer_mpegvideo debug: size 720x576 fps=25.000

main debug: Buffering 62%

main debug: Buffering 64%

main debug: looking for text renderer module matching "any": 2 candidates

freetype debug: Building font databases.

freetype debug: Took 0 microseconds

main debug: Buffering 67%

freetype debug: Using Serif Bold as font from file /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf

freetype debug: using fontsize: 2

main debug: using text renderer module "freetype"

main debug: looking for video filter2 module matching "any": 55 candidates

swscale debug: 32x32 chroma: YUVA -> 16x16 chroma: RGBA with scaling using Bicubic (good quality)

main debug: using video filter2 module "swscale"

main debug: looking for video filter2 module matching "any": 55 candidates

yuvp debug: YUVP to YUVA converter

main debug: using video filter2 module "yuvp"

main debug: Deinterlacing available

main debug: deinterlace 1, mode blend, is_needed 0

main debug: Opening vout display wrapper

main debug: looking for vout display module matching "any": 12 candidates

main debug: looking for vout window xid module matching "qt4,any": 4 candidates

qt4 debug: requesting video window...

qt4 debug: Video was requested 0, 0

main debug: using vout window xid module "qt4"

main debug: looking for inhibit module matching "any": 2 candidates

dbus_screensaver debug: found service org.freedesktop.ScreenSaver

main debug: using inhibit module "dbus_screensaver"

xcb_xv debug: connected to X11.0 server

xcb_xv debug: vendor : The X.Org Foundation

xcb_xv debug: version: 11501000

xcb_xv debug: using screen 0xc1

xcb_xv debug: using XVideo extension v2.2

xcb_xv debug: using adaptor Intel(R) Textured Video

xcb_xv debug: using port 110

xcb_xv debug: using image format 0x30323449

xcb_xv debug: using X11 visual ID 0x45 (depth: 24)

xcb_xv debug: using X11 window 0x02200000

xcb_xv debug: using X11 graphic context 0x02200002

main debug: VoutDisplayEvent 'fullscreen' 0

main debug: VoutDisplayEvent 'resize' 1024x576 window

main debug: using vout display module "xcb_xv"

main debug: original format sz 720x576, of (0,0), vsz 720x576, 4cc I420, sar 64:45, msk r0x0 g0x0 b0x0

main debug: Adding 'deinterlace' as static

main debug: looking for video filter2 module matching "deinterlace": 55 candidates

deinterlace debug: using blend deinterlace method

deinterlace debug: deinterlacing

main debug: using video filter2 module "deinterlace"

main debug: Filter 'deinterlace' (0x7fc414010128) appended to chain

main debug: removing module "freetype"

main debug: looking for text renderer module matching "any": 2 candidates

freetype debug: Building font databases.

freetype debug: Took 0 microseconds

freetype debug: Using Serif Bold as font from file /usr/share/fonts/truetype/dejavu/DejaVuSans.ttf

freetype debug: using fontsize: 2

main debug: using text renderer module "freetype"

avcodec warning: disabling direct rendering

xcb_xv debug: display is visible

main error: Failed to resize display

main debug: End of video preroll

main debug: Received first picture

main debug: Buffering 70%

main debug: looking for video blending module matching "any": 1 candidates

main debug: using video blending module "blend"

main debug: Detected interlaced video

main debug: deinterlace 1, mode blend, is_needed 1

main debug: Buffering 72%

main debug: Buffering 74%

main debug: Buffering 77%

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

main debug: Buffering 79%

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

main debug: Buffering 82%

main debug: Buffering 85%

main debug: Buffering 87%

main debug: Buffering 90%

main debug: Buffering 92%

main debug: Buffering 95%

main debug: Buffering 97%

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

main debug: Stream buffering done (1000 ms in 987 ms)

main debug: Decoder buffering done in 0 ms

pulse debug: cannot synchronize start

pulse debug: deferring start (215949 us)

pulse debug: deferring start (191476 us)

pulse debug: deferring start (166847 us)

pulse debug: deferring start (141772 us)

pulse debug: deferring start (117170 us)

pulse debug: deferring start (92627 us)

pulse debug: deferring start (68116 us)

pulse debug: deferring start (43643 us)

pulse debug: deferring start (19177 us)

pulse warning: starting late (-5365 us)

pulse debug: started

main warning: playback way too early (-210155): playing silence

main debug: inserting 9267 zeroes

pulse debug: changing sink 0: alsa_output.pci-0000_00_1b.0.analog-stereo (Built-in Audio Analog Stereo)

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (PAT decoder): Table version 4, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PAT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (PMT decoder): Table version 14, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (PMT decoder): ignoring already decoded section 0

ts debug: libdvbpsi (SDT decoder): Table version 8, i_extension 1, section 0 up to 0, current 1

ts debug: libdvbpsi (SDT decoder): ignoring already decoded section 0

Who would've thought that the solution is that simple. I mentioned a link in the comment section that said to disable the wireless adapter - this did not help. Then I was googling by using the keywords: "firewall" site:videolan.org and came across this topic where the user was asked if he has VMWare or VirtualBox installed. And this gave me an idea to disable the VirtualBox Host-Only Ethernet Adapter and now the udp stream is working.