Following some of the answers in this question, I tried setting up an RTSP stream by running:
raspivid -o - -t 0 -hf -w 640 -h 360 -fps 25 | cvlc -vvv stream:///dev/stdin --sout '#rtp{sdp=rtsp://:8554}' :demux=h264
but this seems to fail with the output:
VLC media player 2.1.6 Rincewind (revision 2.1.6-0-gea01d28)
[0x1e320d0] main libvlc debug: VLC media player - 2.1.6 Rincewind
[0x1e320d0] main libvlc debug: Copyright �� 1996-2015 the VideoLAN team
[0x1e320d0] main libvlc debug: revision 2.1.6-0-gea01d28
[0x1e320d0] main libvlc debug: configured with ./configure '--includedir=${prefix}/include' '--mandir=${prefix}/share/man' '--infodir=${prefix}/share/info' '--localstatedir=/var' '--libdir=${prefix}/lib/arm-lin
ux-gnueabihf' '--libexecdir=${prefix}/lib/arm-linux-gnueabihf' '--disable-dependency-tracking' '--build=arm-linux-gnueabihf' 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro' '--conf
ig-cache' '--disable-maintainer-mode' '--disable-silent-rules' '--disable-update-check' '--enable-fast-install' '--prefix=/usr' '--docdir=/usr/share/doc/vlc-nox' '--libdir=/usr/lib' '--sysconfdir=/etc' '--with-b
inary-version=0ubuntu14.04.1' '--enable-a52' '--enable-aa' '--enable-bluray' '--enable-bonjour' '--enable-caca' '--enable-chromaprint' '--enable-dbus' '--enable-dca' '--enable-dirac' '--enable-directfb' '--enabl
e-dvbpsi' '--enable-dvdnav' '--enable-faad' '--enable-flac' '--enable-fluidsynth' '--enable-freetype' '--enable-fribidi' '--enable-gnutls' '--enable-jack' '--enable-kate' '--enable-libass' '--enable-libfreerdp'
'--enable-libmpeg2' '--enable-libxml2' '--enable-lirc' '--enable-live555' '--enable-mad' '--enable-mkv' '--enable-mod' '--enable-mpc' '--enable-mtp' '--enable-mux_ogg' '--enable-ncurses' '--enable-notify' '--ena
ble-ogg' '--enable-opus' '--enable-oss' '--enable-pulse' '--enable-qt' '--enable-realrtsp' '--enable-samplerate' '--enable-schroedinger' '--enable-sdl' '--enable-sftp' '--enable-shout' '--enable-skins2' '--enabl
e-smbclient' '--enable-speex' '--enable-svg' '--enable-taglib' '--enable-theora' '--enable-twolame' '--enable-upnp' '--enable-vcd' '--enable-vcdx' '--enable-vorbis' '--enable-x264' '--enable-zvbi' '--with-kde-so
lid=/usr/share/kde4/apps/solid/actions/' '--disable-decklink' '--disable-dxva2' '--disable-fdkaac' '--disable-gnomevfs' '--disable-goom' '--disable-libvnc' '--disable-opencv' '--disable-projectm' '--disable-quic
ksync' '--disable-sndio' '--disable-telx' '--disable-vsxu' '--disable-wasapi' '--enable-alsa' '--enable-atmo' '--enable-dc1394' '--enable-dv1394' '--enable-linsys' '--enable-omxil' '--enable-udev' '--enable-libv
a' '--enable-v4l2' '--disable-crystalhd' '--disable-mmx' '--disable-sse' '--disable-neon' '--disable-altivec' 'CFLAGS=-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security' 'CXXFLAG
S=-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security' 'build_alias=arm-linux-gnueabihf'
[0x1e320d0] main libvlc debug: searching plug-in modules
[0x1e320d0] main libvlc debug: loading plugins cache file /usr/lib/vlc/plugins/plugins.dat
mmal: mmal_vc_component_enable: failed to enable component: ENOSPC
mmal: camera component couldn't be enabled
mmal: main: Failed to create camera component
mmal: Failed to run camera app. Please check for firmware updates
[0x1e320d0] main libvlc debug: recursively browsing `/usr/lib/vlc/plugins'
[0x1e320d0] main libvlc debug: saving plugins cache /usr/lib/vlc/plugins/plugins.dat
[0x1e320d0] main libvlc debug: plug-ins loaded: 392 modules
[0x1e320d0] main libvlc debug: opening config file (/home/ubuntu/.config/vlc/vlcrc)
[0x1e320d0] main libvlc debug: translation test: code is "C"
[0x1e320d0] main libvlc debug: CPU has capabilities ARM_NEON FPU
[0x1eca128] main input debug: Creating an input for 'Media Library'
[0x1eca128] main input debug: Input is a meta file: disabling unneeded options
[0x1eca128] main input debug: using timeshift granularity of 50 MiB, in path '/tmp'
[0x1eca128] main input debug: `file/xspf-open:///home/ubuntu/.local/share/vlc/ml.xspf' gives access `file' demux `xspf-open' path `/home/ubuntu/.local/share/vlc/ml.xspf'
[0x1eca128] main input debug: creating demux: access='file' demux='xspf-open' location='/home/ubuntu/.local/share/vlc/ml.xspf' file='/home/ubuntu/.local/share/vlc/ml.xspf'
[0x1e45d18] main demux debug: looking for access_demux module matching "file": 18 candidates
[0x1e45d18] main demux debug: no access_demux modules matched
[0x1eca128] main input debug: creating access 'file' location='/home/ubuntu/.local/share/vlc/ml.xspf', path='/home/ubuntu/.local/share/vlc/ml.xspf'
[0x1eca958] main access debug: looking for access module matching "file": 25 candidates
[0x1eca958] filesystem access debug: opening file `/home/ubuntu/.local/share/vlc/ml.xspf'
[0x1eca958] main access debug: using access module "filesystem"
[0x1e45d18] main stream debug: Using stream method for AStream*
[0x1e45d18] main stream debug: starting pre-buffering
[0x1e45d18] main stream debug: received first data after 0 ms
[0x1e45d18] main stream debug: pre-buffering done 296 bytes in 0s - 1927 KiB/s
[0x1ecaf80] main stream debug: looking for stream_filter module matching "any": 9 candidates
[0x1ecaf80] main stream debug: no stream_filter modules matched
[0x1ecaf80] main stream debug: looking for stream_filter module matching "record": 9 candidates
[0x1ecaf80] main stream debug: using stream_filter module "record"
[0x1eca128] main input debug: creating demux: access='file' demux='xspf-open' location='/home/ubuntu/.local/share/vlc/ml.xspf' file='/home/ubuntu/.local/share/vlc/ml.xspf'
[0x1ecc9a8] main demux debug: looking for demux module matching "xspf-open": 63 candidates
[0x1ecc9a8] playlist demux debug: using XSPF playlist reader
[0x1ecc9a8] main demux debug: using demux module "playlist"
[0x1ece128] main demux meta debug: looking for meta reader module matching "any": 2 candidates
[0x1ece128] lua demux meta debug: Trying Lua scripts in /home/ubuntu/.local/share/vlc/lua/meta/reader
[0x1ece128] lua demux meta debug: Trying Lua scripts in /usr/lib/vlc/lua/meta/reader
[0x1ece128] lua demux meta debug: Trying Lua playlist script /usr/lib/vlc/lua/meta/reader/filename.luac
[0x1ece128] lua demux meta debug: Trying Lua scripts in /usr/share/vlc/lua/meta/reader
[0x1ece128] main demux meta debug: no meta reader modules matched
[0x1eca128] main input debug: `file/xspf-open:///home/ubuntu/.local/share/vlc/ml.xspf' successfully opened
[0x1ebf340] main xml reader debug: looking for xml reader module matching "any": 1 candidates
[0x1ebf340] main xml reader debug: using xml reader module "xml"
[0x1ecc9a8] playlist demux debug: parsed 0 tracks successfully
[0x1eca128] main input debug: EOF reached
[0x1ecc9a8] main demux debug: removing module "playlist"
[0x1ecaf80] main stream debug: removing module "record"
[0x1eca958] main access debug: removing module "filesystem"
[0x1e44718] main playlist debug: creating audio output
[0x1ebe998] main audio output debug: looking for audio output module matching "any": 5 candidates
[0x1ebe998] alsa audio output debug: Available ALSA PCM devices:
[0x1ebe998] alsa audio output debug: Discard all samples (playback) or generate zero samples (capture) (null)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 ALSA Default Audio Device (default:CARD=ALSA)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 ALSA Default Audio Device (sysdefault:CARD=ALSA)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 ALSA Direct sample mixing device (dmix:CARD=ALSA,DEV=0)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 IEC958/HDMI Direct sample mixing device (dmix:CARD=ALSA,DEV=1)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 ALSA Direct sample snooping device (dsnoop:CARD=ALSA,DEV=0)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 IEC958/HDMI Direct sample snooping device (dsnoop:CARD=ALSA,DEV=1)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 ALSA Direct hardware device without any conversions (hw:CARD=ALSA,DEV=0)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 IEC958/HDMI Direct hardware device without any conversions (hw:CARD=ALSA,DEV=1)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 ALSA Hardware device with all software conversions (plughw:CARD=ALSA,DEV=0)
[0x1ebe998] alsa audio output debug: bcm2835 ALSA, bcm2835 IEC958/HDMI Hardware device with all software conversions (plughw:CARD=ALSA,DEV=1)
[0x1ebe998] main audio output debug: using audio output module "alsa"
[0x1e44718] main playlist debug: keeping audio output
[0x1e44718] main playlist debug: adding item `stdin' ( stream:///dev/stdin )
[0x765004d8] main input debug: Creating an input for 'stdin'
[0x1eca958] main interface debug: looking for interface module matching "hotkeys,none": 15 candidates
[0x1e44718] main playlist debug: no fetch required for (null) (art currently (null))
[0x1eca958] main interface debug: using interface module "hotkeys"
[0x1e45498] main interface debug: looking for interface module matching "globalhotkeys,none": 15 candidates
[0x1e45498] main interface debug: no interface modules matched
[0x1e45498] main interface error: no suitable interface module
[0x1e320d0] main libvlc error: interface "globalhotkeys,none" initialization failed
[0x1e45498] main interface debug: looking for interface module matching "dbus,none": 15 candidates
[0x1e45498] dbus interface error: Failed to connect to the D-Bus session daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11
[0x1e45498] main interface debug: no interface modules matched
[0x1e45498] main interface error: no suitable interface module
[0x1e320d0] main libvlc error: interface "dbus,none" initialization failed
[0x1e45498] main interface debug: looking for interface module matching "dummy": 15 candidates
[0x1e45498] dummy interface: using the dummy interface module...
[0x1e45498] main interface debug: using interface module "dummy"
[0x1e44718] main playlist debug: processing request item: null, node: Playlist, skip: 0
[0x1e44718] main playlist debug: rebuilding array of current - root Playlist
[0x1e44718] main playlist debug: rebuild done - 1 items, index -1
[0x1e44718] main playlist debug: starting playback of the new playlist item
[0x1e44718] main playlist debug: resyncing on stdin
[0x1e44718] main playlist debug: stdin is at 0
[0x1e44718] main playlist debug: creating new input thread
[0x76502ad8] main input debug: Creating an input for 'stdin'
[0x763006d8] main stream output debug: using sout chain=`rtp{sdp=rtsp://:8554}'
[0x763006d8] main stream output debug: stream=`rtp'
[0x763008c8] main stream out debug: looking for sout stream module matching "rtp": 21 candidates
[0x763008c8] main stream out debug: set config option: sout-rtp-sdp to rtsp://:8554
[0x763008c8] stream_out_rtp stream out debug: RTSP stream at /
[0x763008c8] main stream out debug: net: listening to * port 8554
[0x763008c8] main stream out debug: using sout stream module "stream_out_rtp"
[0x76502ad8] main input debug: using timeshift granularity of 50 MiB, in path '/tmp'
[0x76502ad8] main input debug: `stream:///dev/stdin' gives access `stream' demux `' path `/dev/stdin'
[0x76502ad8] main input debug: enforced demux ` h264'
[0x76502ad8] main input debug: creating demux: access='stream' demux='h264' location='/dev/stdin' file='/dev/stdin'
[0x76302658] main demux debug: looking for access_demux module matching "stream": 18 candidates
[0x76302658] main demux debug: no access_demux modules matched
[0x76502ad8] main input debug: creating access 'stream' location='/dev/stdin', path='/dev/stdin'
[0x76302980] main access debug: looking for access module matching "stream": 25 candidates
[0x76302980] filesystem access debug: opening file `/dev/stdin'
[0x76302980] main access debug: using access module "filesystem"
[0x76302a68] main stream debug: Using stream method for AStream*
[0x76302a68] main stream debug: starting pre-buffering
[0x76302a68] main stream error: cannot pre fill buffer
[0x76302980] main access debug: removing module "filesystem"
[0x76502ad8] main input warning: cannot create a stream_t from access
[0x1e44718] main playlist debug: dead input
[0x763006d8] main stream output debug: destroying useless sout
[0x763008c8] main stream out debug: destroying chain... (name=rtp)
[0x763008c8] main stream out debug: removing module "stream_out_rtp"
[0x763024a0] main http host debug: HTTP host removed
[0x763008c8] main stream out debug: destroying chain done
[0x1e44718] main playlist debug: changing item without a request (current 0/1)
[0x1e44718] main playlist debug: nothing to play
This does create stream, but when I access it via VLC on a separate host, VLC just gives me an endless list of errors about not being able to read any data.
I'm assuming this is related to the error in the ouput:
mmal: Failed to run camera app. Please check for firmware updates
However, I'm able to use the picamera Python module to capture still images from the camera. Why is VLC unable to access the camera?
