Eu tenho um fluxo udp (não acessível para o mundo externo) que o VLC pode reproduzir no Linux, mas não é capaz no Windows. O Firewall do Windows está desativado. Para testar o fluxo do udp no VLC, eu desliguei temporariamente o firewall do antivírus (ESET Smart Security), e o VLC ainda não reproduzia o fluxo.
Como eu poderia investigar o que poderia estar bloqueando a reprodução do stream? O que há de diferente entre o Linux e o Windows a esse respeito? Devo inspecionar os pacotes no Wireshark, ajudaria - e, em caso afirmativo, o que exatamente devo procurar?
edit: Eu estava apontando para a função "Mensagens" do VLC. Então aqui estão as mensagens VLC do Linux e do Windows:
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:\Users\John\AppData\Local\Temp'
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
Quem pensaria que a solução é simples assim? Mencionei um link na seção de comentários que dizia para desativar o adaptador sem fio - isso não ajudou . Então eu estava googling usando as palavras-chave: "firewall" site:videolan.org e me deparei com este tópico onde o usuário foi perguntado se ele tem VMWare ou VirtualBox instalado. E isso me deu uma ideia para desativar o VirtualBox Host-Only Ethernet Adapter e agora o fluxo do udp está funcionando.