[streaming] transcoding h.264 to MJPEG under Linux

Yves A. yves030 at gmx.de
Fri May 31 23:59:34 CEST 2013 

I found at least one soulution by myself....
sout has to be wrapped in single quotas....

but still input stream parameter does not accept '&' as part of the 
url... any suggestions?

thx,
yves


Am 31.05.2013 23:10, schrieb Yves A.:
> Hi,
>
> I am trying to transcode a H.264 Stream (via RTSP) from my IP Cam to a 
> MJPEG Stream (via HTTP), so that I can easily
> view the stream in many Browsers / Devices without the need of 
> PlugIns, Apps and so on...
>
> Now I have several problems...
>
> When I run (under windows):
> *
> **vlc rtsp://192.168.10.254:8554/proxyStream-1 
> :sout=#transcode{vcodec=MJPG,vb=800,scale=1}:duplicate{dst=std{access=http{mime=multipart/x-mixed-replace;boundary=--7b3cc56e5f51db803f790dad720ed50a},mux=mpjpeg,dst=:8080/mjpeg}}**/
> /*
>
> I can view the MJPEG stream in my browser like expected
>
> Issuing the same command under linux (ubuntu 13, Kernel 
> 3.8.0-19-generic) throws the following errors and outputs therefor no 
> stream...:
>
> custodia at vigilia:~$ *cvlc -vvv 
> rtsp://192.168.10.254:8554/proxyStream-1 
> :sout=#transcode{vcodec=MJPG,vb=800,scale=1}:duplicate{dst=std{access=http{mime**
> **=multipart/x-mixed-replace;boundary=--7b3cc56e5f51db803f790dad720ed50a},mux=mpjpeg,dst=:8080/mjpeg}}
>
> *VLC media player 2.0.6 Twoflower (revision 2.0.6-0-gbe9623c)
> [0x95958f0] main libvlc debug: VLC media player - 2.0.6 Twoflower
> [0x95958f0] main libvlc debug: Copyright © 1996-2013 VLC authors and 
> VideoLAN
> [0x95958f0] main libvlc debug: revision 2.0.6-0-gbe9623c
> [0x95958f0] main libvlc debug: configured with ./configure 
> '--enable-static' '--build=i686-linux-gnu' 'CFLAGS=-g -O2 
> -fstack-protector --param=ssp-bu
> ffer-size=4 -Wformat -Werror=format-security' 
> 'CPPFLAGS=-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fstack-protector 
> --param=ssp-buffer-size=4 -Wformat -We
> rror=format-security' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro' 
> '--config-cache' '--disable-maintainer-mode' '--disable-silent-rules' 
> '--disable
> -update-check' '--enable-fast-install' '--prefix=/usr' 
> '--docdir=/usr/share/doc/vlc-nox' '--sysconfdir=/etc' 
> '--with-binary-version=1' '--enable-a52'
> '--enable-aa' '--enable-bluray' '--enable-bonjour' '--enable-caca' 
> '--enable-dbus' '--enable-dca' '--enable-dirac' '--enable-directfb' 
> '--enable-dvbps
> i' '--enable-dvdnav' '--enable-faad' '--enable-flac' 
> '--enable-fluidsynth' '--enable-freetype' '--enable-fribidi' 
> '--enable-gnutls' '--enable-jack' '-
> -enable-kate' '--enable-libass' '--enable-libmpeg2' 
> '--enable-libproxy' '--enable-libxml2' '--enable-lirc' 
> '--enable-live555' '--enable-mad' '--enable
> -mkv' '--enable-mod' '--enable-mpc' '--enable-mtp' '--enable-mux_ogg' 
> '--enable-ncurses' '--enable-notify' '--enable-ogg' '--enable-opus' 
> '--enable-os
> s' '--enable-pulse' '--enable-qt4' '--enable-realrtsp' 
> '--enable-samplerate' '--enable-schroedinger' '--enable-sdl' 
> '--enable-sftp' '--enable-shout' '
> --enable-skins2' '--enable-smb' '--enable-speex' '--enable-svg' 
> '--enable-taglib' '--enable-theora' '--enable-twolame' '--enable-upnp' 
> '--enable-vcd'
> '--enable-vcdx' '--enable-vorbis' '--enable-x264' '--enable-zvbi' 
> '--with-kde-solid=/usr/share/kde4/apps/solid/actions/' 
> '--disable-dxva2' '--disable-
> gnomevfs' '--disable-goom' '--disable-portaudio' '--disable-projectm' 
> '--disable-sqlite' '--disable-telx' '--enable-alsa' '--enable-atmo' 
> '--enable-dc
> 1394' '--enable-dv' '--enable-fbosd' '--enable-libva' 
> '--enable-linsys' '--enable-omxil' '--enable-pvr' '--enable-udev' 
> '--enable-v4l2' '--enable-crys
> talhd' '--enable-mmx' '--enable-sse' '--disable-neon' 
> '--disable-altivec' 'build_alias=i686-linux-gnu'
> [0x95958f0] main libvlc debug: searching plug-in modules
> [0x95958f0] main libvlc debug: loading plugins cache file 
> /usr/lib/vlc/plugins/plugins.dat
> [0x95958f0] main libvlc debug: recursively browsing `/usr/lib/vlc/plugins'
> [0x95958f0] main libvlc debug: saving plugins cache 
> /usr/lib/vlc/plugins/plugins.dat
> [0x95958f0] main libvlc debug: plug-ins loaded: 422 modules
> [0x95958f0] main libvlc debug: opening config file 
> (/home/custodia/.config/vlc/vlcrc)
> [0x95958f0] main libvlc debug: translation test: code is "de"
> [0x95958f0] main libvlc debug: CPU has capabilities MMX MMXEXT SSE 
> SSE2 SSE3 SSSE3 FPU
> [0x95958f0] main libvlc debug: looking for memcpy module: 4 candidates
> [0x95958f0] main libvlc debug: using memcpy module "memcpymmxext"
> [0x9727668] main input debug: Creating an input for 'Medienbibliothek'
> [0x9727668] main input debug: Input is a meta file: disabling unneeded 
> options
> [0x9727668] main input debug: using timeshift granularity of 50 MiB, 
> in path '/tmp'
> [0x9727668] main input debug: 
> `file/xspf-open:///home/custodia/.local/share/vlc/ml.xspf' gives 
> access `file' demux `xspf-open' path `/home/custodia/.l
> ocal/share/vlc/ml.xspf'
> [0x9727668] main input debug: creating demux: access='file' 
> demux='xspf-open' location='/home/custodia/.local/share/vlc/ml.xspf' 
> file='/home/custodia/
> .local/share/vlc/ml.xspf'
> [0x95b6018] main demux debug: looking for access_demux module: 3 
> candidates
> [0x95b6018] main demux debug: no access_demux module matching "file" 
> could be loaded
> [0x95b6018] main demux debug: TIMER module_need() : 1.988 ms - Total 
> 1.988 ms / 1 intvls (Avg 1.988 ms)
> [0x9727668] main input debug: creating access 'file' 
> location='/home/custodia/.local/share/vlc/ml.xspf', 
> path='/home/custodia/.local/share/vlc/ml.xspf
> '
> [0x962eca0] main access debug: looking for access module: 2 candidates
> [0x962eca0] filesystem access debug: opening file 
> `/home/custodia/.local/share/vlc/ml.xspf'
> [0x962eca0] main access debug: using access module "filesystem"
> [0x962eca0] main access debug: TIMER module_need() : 1.058 ms - Total 
> 1.058 ms / 1 intvls (Avg 1.058 ms)
> [0x962fc10] main stream debug: Using stream method for AStream*
> [0x962fc10] main stream debug: starting pre-buffering
> [0x962fc10] main stream debug: received first data after 0 ms
> [0x962fc10] main stream debug: pre-buffering done 299 bytes in 0s - 
> 2147 KiB/s
> [0x962f470] main stream debug: looking for stream_filter module: 7 
> candidates
> [0x962f470] main stream debug: no stream_filter module matching "any" 
> could be loaded
> [0x962f470] main stream debug: TIMER module_need() : 1.954 ms - Total 
> 1.954 ms / 1 intvls (Avg 1.954 ms)
> [0x962f470] main stream debug: looking for stream_filter module: 1 
> candidate
> [0x962f470] main stream debug: using stream_filter module 
> "stream_filter_record"
> [0x962f470] main stream debug: TIMER module_need() : 0.666 ms - Total 
> 0.666 ms / 1 intvls (Avg 0.666 ms)
> [0x9727668] main input debug: creating demux: access='file' 
> demux='xspf-open' location='/home/custodia/.local/share/vlc/ml.xspf' 
> file='/home/custodia/
> .local/share/vlc/ml.xspf'
> [0x962fcd0] main demux debug: looking for demux module: 1 candidate
> [0x962fcd0] playlist demux debug: using XSPF playlist reader
> [0x962fcd0] main demux debug: using demux module "playlist"
> [0x962fcd0] main demux debug: TIMER module_need() : 0.871 ms - Total 
> 0.871 ms / 1 intvls (Avg 0.871 ms)
> [0x96321f8] main demux meta debug: looking for meta reader module: 2 
> candidates
> [0x96321f8] lua demux meta debug: Trying Lua scripts in 
> /home/custodia/.local/share/vlc/lua/meta/reader
> [0x96321f8] lua demux meta debug: Trying Lua scripts in 
> /usr/lib/vlc/lua/meta/reader
> [0x96321f8] lua demux meta debug: Trying Lua playlist script 
> /usr/lib/vlc/lua/meta/reader/filename.luac
> [0x96321f8] lua demux meta debug: Trying Lua scripts in 
> /usr/share/vlc/lua/meta/reader
> [0x96321f8] main demux meta debug: no meta reader module matching 
> "any" could be loaded
> [0x96321f8] main demux meta debug: TIMER module_need() : 4.667 ms - 
> Total 4.667 ms / 1 intvls (Avg 4.667 ms)
> [0x9727668] main input debug: 
> `file/xspf-open:///home/custodia/.local/share/vlc/ml.xspf' 
> successfully opened
> [0x9624be8] main xml reader debug: looking for xml reader module: 1 
> candidate
> [0x9624be8] main xml reader debug: using xml reader module "xml"
> [0x9624be8] main xml reader debug: TIMER module_need() : 1.740 ms - 
> Total 1.740 ms / 1 intvls (Avg 1.740 ms)
> [0x962fcd0] playlist demux debug: parsed 0 tracks successfully
> [0x9727668] main input debug: EOF reached
> [0x962fcd0] main demux debug: removing module "playlist"
> [0x962f470] main stream debug: removing module "stream_filter_record"
> [0x962eca0] main access debug: removing module "filesystem"
> [0x9727668] main input debug: TIMER input launching for 
> 'Medienbibliothek' : 13.841 ms - Total 13.841 ms / 1 intvls (Avg 
> 13.841 ms)
> [0x9623e88] main interface debug: looking for interface module: 1 
> candidate
> [0x9623e88] main interface debug: using interface module "hotkeys"
> [0x9623e88] main interface debug: TIMER module_need() : 0.759 ms - 
> Total 0.759 ms / 1 intvls (Avg 0.759 ms)
> [0x95a96d8] main interface debug: looking for interface module: 1 
> candidate
> [0x95a96d8] inhibit interface error: Failed to connect to the D-Bus 
> session daemon: Unable to autolaunch a dbus-daemon without a $DISPLAY 
> for X11
> [0x95a96d8] main interface debug: no interface module matching 
> "inhibit,none" could be loaded
> [0x95a96d8] main interface debug: TIMER module_need() : 0.919 ms - 
> Total 0.919 ms / 1 intvls (Avg 0.919 ms)
> [0x95a96d8] main interface error: no suitable interface module
> [0x9729150] main playlist debug: playlist threads correctly activated
> [0x9729150] main playlist debug: rebuilding array of current - root 
> Wiedergabeliste
> [0x9729150] main playlist debug: rebuild done - 0 items, index -1
> [0x9729150] main playlist debug: adding item 
> `rtsp://192.168.10.254:8554/proxyStream-1' ( 
> rtsp://192.168.10.254:8554/proxyStream-1 )
> [0x9729150] main playlist debug: no fetch required for (null) (art 
> currently (null))
> [0x9728510] main interface debug: looking for interface module: 1 
> candidate
> [0x9728510] main interface debug: no interface module matching 
> "globalhotkeys,none" could be loaded
> [0x9728510] main interface debug: TIMER module_need() : 1.202 ms - 
> Total 1.202 ms / 1 intvls (Avg 1.202 ms)
> [0x9728510] main interface error: no suitable interface module
> [0x95958f0] main libvlc error: interface "globalhotkeys,none" 
> initialization failed
> [0x9728510] main interface debug: looking for interface module: 1 
> candidate
> [0x9728510] dummy interface: using the dummy interface module...
> [0x9728510] main interface debug: using interface module "dummy"
> [0x9728510] main interface debug: TIMER module_need() : 0.999 ms - 
> Total 0.999 ms / 1 intvls (Avg 0.999 ms)
> [0x9729150] main playlist debug: processing request item: null, node: 
> Wiedergabeliste, skip: 0
> [0x9729150] main playlist debug: rebuilding array of current - root 
> Wiedergabeliste
> [0x9729150] main playlist debug: rebuild done - 1 items, index -1
> [0x9729150] main playlist debug: starting playback of the new playlist 
> item
> [0x9729150] main playlist debug: resyncing on 
> rtsp://192.168.10.254:8554/proxyStream-1
> [0x9729150] main playlist debug: 
> rtsp://192.168.10.254:8554/proxyStream-1 is at 0
> [0x9729150] main playlist debug: creating new input thread
> [0xb53005f0] main input debug: Creating an input for 
> 'rtsp://192.168.10.254:8554/proxyStream-1'
> [0xb5100880] main stream output debug: using sout 
> chain=`transcodescale=1:duplicate{dst=std{access=http{mime=multipart/x-mixed-replace'
> [0xb5100880] main stream output debug: stream=`duplicate'
> [0xb5100b10] main stream out debug: looking for sout stream module: 1 
> candidate
> [0xb5100b10] stream_out_duplicate stream out debug: creating 'duplicate'
> [0xb5100b10] stream_out_duplicate stream out debug:  * adding 
> `std{access=http{mime=multipart/x-mixed-replace'
> [0xb5100880] main stream output debug: stream=`std'
> [0xb5101128] main stream out debug: looking for sout stream module: 1 
> candidate
> [0xb5101128] main stream out debug: set config option: 
> sout-standard-access to http{mime=multipart/x-mixed-replace
> [0xb5101128] stream_out_standard stream out error: no mux specified or 
> found by extension
> [0xb5101128] main stream out debug: no sout stream module matching 
> "std" could be loaded
> [0xb5101128] main stream out debug: TIMER module_need() : 1.270 ms - 
> Total 1.270 ms / 1 intvls (Avg 1.270 ms)
> [0xb5101128] main stream out debug: destroying chain... (name=(null))
> [0xb5101128] main stream out debug: destroying chain done
> [0xb5100b10] stream_out_duplicate stream out error: no destination given
> [0xb5100b10] main stream out debug: no sout stream module matching 
> "duplicate" could be loaded
> [0xb5100b10] main stream out debug: TIMER module_need() : 3.054 ms - 
> Total 3.054 ms / 1 intvls (Avg 3.054 ms)
> [0xb5100b10] main stream out debug: destroying chain... (name=(null))
> [0xb5100b10] main stream out debug: destroying chain done
> [0xb5100880] main stream output error: stream chain failed for 
> `transcodescale=1:duplicate{dst=std{access=http{mime=multipart/x-mixed-replace'
> [0xb53005f0] main input error: cannot start stream output instance, 
> aborting
> [0x9729150] main playlist debug: finished input
> [0x9729150] main playlist debug: dead input
> [0xb53005f0] main input debug: TIMER input launching for 
> 'rtsp://192.168.10.254:8554/proxyStream-1' : 4.873 ms - Total 4.873 ms 
> / 1 intvls (Avg 4.873
> ms)
> [0x9729150] main playlist debug: changing item without a request 
> (current 0/1)
> [0x9729150] main playlist debug: nothing to play
>
> What am I missing?
>
> Next Question....:
> the rtsp URL from my IP Cam contains ampersands and question mark to 
> supply parameters... unfortunately vlc seems to have problems, when 
> the url contains
> such characters... the only way to get this working (under linux... 
> windows gui has no problems) was to use live555 as a proxy... I tried 
> wrapping in double quote, single quotes etc....
> nothing helped... the "original url" for the h.264 stream of the 
> camera is:
>
> rtsp://user:password@ip-addr:554/cam/realtimemonitor?channel=1&subtype=0
>
> thank you for reading and maybe giving the solution(s).
>
> regards,
> yves
>
>
>
>
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