camff.sh

Latest ffmpeg startup example - Hammel, 27 Aug 2013 08:46

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#!/bin/sh
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# Stream via ffmpeg, crtmpserver and jwplayer
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# ---------------------------------------------------
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myip=0.0.0.0
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port=6666
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width=320
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height=240
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fr=10
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# Works with ffserver
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# fr=25
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# ffmpeg -f video4linux2 -s ${width}x${height} -r $fr -i /dev/video0 http://localhost:8090/webcam.ffm
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# exit 0
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# RTP Streaming with crtmpserver
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# Test 1: good, but a bit behind (2-4 seconds)
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# fr=25
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# ffmpeg -f video4linux2 -s ${width}x${height} -r $fr -i /dev/video0 -intra -qscale 2 -f flv -metadata streamName=myStream tcp://0.0.0.0:6666
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# exit 0
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# Test 2: Good quality and only slightly behind
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# fr=30
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# ffmpeg -f video4linux2 -s ${width}x${height} -r $fr -i /dev/video0 -f flv -qscale 2 -metadata streamName=myStream tcp://0.0.0.0:6666
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# Test 3: very good - very small latency
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# After reading http://trac.ffmpeg.org/wiki/StreamingGuide
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# fr=30
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#ffmpeg -f video4linux2 -s ${width}x${height} -r $fr \
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#	-async 1 -ab 24k -ar 22050 -bufsize 3000k -maxrate 750k \
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#	-i /dev/video0 -intra -qscale 2 -f flv \
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#	-metadata streamName=myStream tcp://0.0.0.0:6666
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# Test 4: not much improvement
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# After reading http://trac.ffmpeg.org/wiki/StreamingGuide
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# fr=25
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# ffmpeg -f video4linux2 -s ${width}x${height} -r $fr \
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# 	-b 1k -ac 0 \
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# 	-async 1 -bufsize 3000k -maxrate 750k \
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# 	-i /dev/video0 -qscale 2 -f flv \
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# 	-metadata streamName=myStream tcp://0.0.0.0:6666
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# Test 5: very stable, but has 5 second delay which builds from .5 second delay at start, then stabilizes at 5 sec.
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# ffmpeg -f video4linux2 -s 320x240 -r 21 \
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# 	-i /dev/video0 \
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# 	-ac 0 -me_method zero \
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#  	-qscale 2 \
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# 	-s 320x240 -r 23\
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#	-b 1250k -bufsize 2000k -maxrate 1750k \
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#	-f flv -metadata streamName=myStream tcp://0.0.0.0:6666
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# exit 0
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# Test 6: crtmpserver example - doesn't work
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# ffmpeg -f video4linux2 -s 320x240 -r 21 \
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#	-i /dev/video0 \
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#	-vcodec mpeg4 \
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#	-b 500000 -s 320x180 -strict experimental -g 25 -me_method zero \
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#	-acodec aac -ab 96000 -ar 48000 -ac 2 -vbsf h264_mp4toannexb \
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#	-f mpegts -metadata streamName=myStream tcp://0.0.0.0:9999
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# Test 7: crtmpserver example: streams mpeg4 but it never reaches browser
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# ffmpeg -f video4linux2 -s 320x240 -r 21 \
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# 	-i /dev/video0 \
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# 	-vcodec mpeg4 \
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# 	-b 500000 -s 320x180 -strict experimental -g 25 -me_method zero \
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# 	-f mpegts -metadata streamName=myStream udp://0.0.0.0:9999
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# exit 0
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# Test 8: Best
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# ffmpeg -f video4linux2 -s 160x120 -r 25 \
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# 	-i /dev/video0 \
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# 	-ac 0 -me_method zero \
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#	-qscale 1.25 \
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#	-s 160x120 -r 25\
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#	-b 1750k -bufsize 2000k -maxrate 2000k \
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#	-f flv -metadata streamName=myStream tcp://0.0.0.0:6666
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# exit 0
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# Test 8: Best
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ffmpeg -f video4linux2 -s 160x120 -r 25 \
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	-i /dev/video0 \
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	-ac 0 -me_method zero \
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 	-qscale 1.1 \
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	-s 160x120 -r 10\
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	-b 1750k -bufsize 2000k -maxrate 2000k \
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	-f flv -metadata streamName=myStream tcp://0.0.0.0:6666
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exit 0