Un petit script bien utile pour d\u00e9livrer un flux video multicast en adaptative smooth streaming :<\/p>\n
<\/p>\n
#!\/bin\/sh\r\n\r\n##D\u00e9lais avant relance suite \u00e0 une d\u00e9connexion entre la machine diffusant le flux adaptative et le serveur recevant les flux\r\nSPAWN_DELAY=15\r\n\r\n##Flux en entr\u00e9e (ici du multicast) avec un cache de 100000\r\nINPUT='udp:\/\/239.0.10.10:7400?fifo_size=100000&overrun_nonfatal=1'\r\n##Serveur de publication des flux Smooth Streaming\r\nPUBPOINT=http:\/\/smooth.publication.tv\/flux\/smooth.isml\r\nFFMPEG_OPTIONS=\"-movflags isml+frag_keyframe -f ismv -threads 0\"\r\n##Param\u00e8tres audio des flux Smooth\r\nAUDIO_OPTIONS=\"-c:a libfaac -ac 2 -b:a 256k\"\r\n##Parametres video des flux Smooth\r\nVIDEO_OPTIONS=\"-c:v libx264 -preset:v superfast -profile:v main -level:v 3.1 -coder:v 0 -g 100 -keyint_min 100 -sc_threshold 0 - r 25\"\r\n##Filtres video\r\nVIDEO_FILTERS=\"-deinterlace\"\r\n\r\n##Mappage des flux\r\nMAP=\"\r\n-map 0:v -b:v:0 800k -s:v:0 640x360\r\n-map 0:v -b:v:1 1100k -s:v:1 1024x576\r\n-map 0:v -b:v:2 1800k -s:v:2 1024x576\r\n-map 0:a:0\"\r\n\r\nwhile true\r\ndo\r\nEVENT_ID=\"$(date +%Y-%m-%d-%H_%M_%S)\"\r\nPUBPOINT_OPTIONS=\"\/Events($EVENT_ID)\/Streams(video)\"\r\n\r\nCMD=\"-y -re -i $INPUT $VIDEO_FILTERS $FFMPEG_OPTIONS $AUDIO_OPTIONS $VIDEO_OPTIONS $MAP ${PUBPOINT}${PUBPOINT_OPTIONS}\"\r\n\r\necho \"\"\r\necho \" **** Command line **** \"\r\necho ffmpeg $CMD\r\necho \"\"\r\n\r\nffmpeg $CMD\r\n\r\necho \"\"\r\necho \" **** Process will be respawned in $SPAWN_DELAY s **** \"\r\necho \" **** press Ctrl-C to abort **** \"\r\necho \"\"\r\n\r\nsleep $SPAWN_DELAY\r\ndone<\/pre>\n <\/p>\n
\u00a0<\/code><\/p>\n <\/p>\n
Et voil\u00e0, vous diffusez un flux en adaptative Smooth Streaming ;)<\/p>\n","protected":false},"excerpt":{"rendered":"
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