Streaming Video With RaspberryPi - Revision history

Alban: /* B. Start capture in a screen */

2015-03-05T23:18:58Z

‎B. Start capture in a screen

2015-03-04T11:25:55Z

‎For laptop or server

2015-03-04T11:23:14Z

‎For laptop or server

2015-01-28T16:33:53Z

‎For Raspberry

2015-01-18T00:29:13Z

‎D. Broadcast from server to icecast

2015-01-18T00:20:08Z

‎Raspicam basics

2015-01-17T23:42:27Z

‎Solution 2 : FLVSTR + PHP Streamer

2015-01-17T23:38:15Z

‎Solution 1 : OGG/VORBIS + Icecast

2015-01-17T23:37:33Z

‎References

2015-01-17T23:31:09Z

‎Solution 4 : HLS + RSYNC

@@ Line 62: / Line 62: @@
      <code>[ -d /tmp/capture ] || mkdir /tmp/capture; rm -f /tmp/capture/* && cd /tmp/capture/ && \
-     raspivid -ih -t 0 -w 1280 -h 720 -b 1000000 -pf baseline -o - | /usr/local/bin/ffmpeg  -f alsa -itsoffset 6.5 -ac 1 -i hw:1 -acodec aac -strict -2 \
+     raspivid -ih -t 0 -w 1280 -h 720 -b 1000000 -pf baseline -o - | /usr/local/bin/ffmpeg  -i hw:1 -itsoffset 6.5 -ac 1  -acodec aac -strict -2 -f alsa \
      -i - -vcodec copy -f segment -segment_list out.list -segment_list_flags +live -segment_list_size 5 -segment_time 4 -segment_time_delta 3 %10d.ts</code>
@@ Line 77: / Line 77: @@
 # We pipe the content into ffmpeg with following parameters:
 ## ALSA Input
 ###<code> -itsoffset 6.5 </code> (time offset) '''This one is a trick''' We noticed our RPi B+ had a 6.5 seconds delay to start the audio, so this is used to resync audio. Tweak.
 ###<code> -ac 1 </code> (number of audio channels) We used a mono input, so <code>1</code> was the right choice. Tweak
@@ Line 84: / Line 83: @@
 ###<code> -strict -2 </code> Argument mandatory for AAC format
 ## Video Input
 ###<code> -i - </code> (input) '''DONT CHANGE''' Use the Standard input
 ###<code> -vcodec copy</code> (video codec) '''DONT CHANGE''' Use the video codec from the RPi. Not enough CPU to do anything else.

@@ Line 321: / Line 321: @@
 </pre>
-== For laptop or server ==
+== Compiling FFMPEG for laptop or server ==
 Your default debian might come with sufficent support but if you want total control, compiling is a good idea.
@@ Line 333: / Line 333: @@
 <pre>
 sudo
-aptitude update && aptitude install screen pkg-config yasm ffmpeg libass-dev libavcodec-extra libfdk-aac-dev libmp3lame-dev libopus-dev libtheora-dev libvorbis-dev libvpx-dev libx264-dev
+aptitude update
 cd /usr/src
 git clone --depth 1 git://source.ffmpeg.org/ffmpeg.git
 cd ffmpeg
-./configure --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab \
+./configure --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
-  && make\
+make
-  && make install
+make install
 </pre>

@@ Line 337: / Line 337: @@
 git clone --depth 1 git://source.ffmpeg.org/ffmpeg.git
 cd ffmpeg
-./configure --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
+./configure --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab \
-make
+  && make\
-make install
+  && make install
 </pre>

@@ Line 316: / Line 316: @@
 git clone --depth 1 git://source.ffmpeg.org/ffmpeg.git
 cd ffmpeg
-./configure --enable-gpl --enable-libx264 --enable-libfdk-aac
+./configure --enable-nonfree --enable-gpl --enable-libx264 --enable-libfdk-aac
 make
 make install

@@ Line 132: / Line 132: @@
 * You '''MUST''' have access to an icecast server. If you use a datacenter server, everything can run locally
-     <code> php /usr/local/bin/stream.php | ffmpeg -i - -f ogg - | oggfwd -p -n "My RaspberryPi Stream" <stream.server.com> 8000 mySecretIceCastStreamingPassword /test </code>
+     <code> php /usr/local/bin/stream.php | ffmpeg -i - -r 12 -s 640x360 -vb 1000k -f ogg - | oggfwd -p -n "My RaspberryPi Stream" <stream.server.com> 8000 mySecretIceCastStreamingPassword /test </code>
 '''What's happening here'''
@@ Line 139: / Line 139: @@
 #<code> | ffmpeg </code> Pipe into FFMPEG
 ##<code> -i - </code> (input) '''DON'T CHANGE''' Use Standard In as input
 ##<code> -f ogg </code> (format) '''DON'T CHANGE''' Use ogg as output format
 ##<code> - </code> (output) '''DON'T CHANGE''' Output to Standard Out

← Older revision		Revision as of 00:20, 18 January 2015
Line 32:		Line 32:

	A very simple tutorial : http://www.raspberrypi-spy.co.uk/2013/05/capturing-hd-video-with-the-pi-camera-module/		A very simple tutorial : http://www.raspberrypi-spy.co.uk/2013/05/capturing-hd-video-with-the-pi-camera-module/
		+
		+	Note: when using 1920x1080, the raspicam take those pixel at the center of the captor. When using smaller definitions, it's using all the 5mpixels and extrapoling down to your requested definition. As a result, a 1280x720 video looks "unzoomed" compared to a 1920x1080, the latter having more grain in the picture too. '''tl;dr: use 1280x720 maximum''' ;)

	= Solution =		= Solution =

@@ Line 242: / Line 242: @@
-'''Basic idea''' the Octopuce company has a solution to convert live MP4 to F4V. With an USB audio card, we could mux the MP4 and AAC audio and have a standalone solution.
+'''Basic idea''' Octopuce company has a solution to convert live MP4 to F4V. With an USB audio card, we could mux the MP4 and AAC audio and have a standalone solution not needing any laptop.
-'''CON''' authentification is hard, F4V means Flash, requires an USB disk for local backup
+'''CON''' authentication not included as of now (only IP address), F4V means Flash, requires an USB disk for local backup. Also, the live stream will need to have the same bitrate as the recorded one.
 == Solution 3 : RTSP ==

@@ Line 41: / Line 41: @@
 # Use the PI to capture video as h264, merge audio from usb and use ffmpeg to produce MPEGTS "chunks"
-# Rsync the chunks to a laptop or a server (note : the audio mix can be done on the laptop)
+# Rsync the chunks to a laptop or a server (note : the audio mix should be integrated here to ensure a good audio/video synchronization)
 # Assemble the chunks and pipe them in ffmpeg
 # Ask ffmpeg to convert this into ogg

@@ Line 343: / Line 343: @@
 Here are a number of unsorted links
-http://techzany.com/2013/09/live-streaming-video-using-avconv-and-a-raspberry-pi/
+* http://techzany.com/2013/09/live-streaming-video-using-avconv-and-a-raspberry-pi/
+* http://blog.cloudfrancois.fr/category/streaming-video.html

← Older revision		Revision as of 23:31, 17 January 2015
Line 284:		Line 284:


−	2. Run a capture : <code>raspivid -ih -pf baseline -t 0 -b 1000000 -w ~~1080~~ -h 720 -v -o - \| ffmpeg -i - -f alsa -ac 1 -itsoffset 6.5 -i hw:1 -acodec aac -strict -2 -vcodec copy out.m3u8 </code>	+	2. Run a capture : <code>raspivid -ih -pf baseline -t 0 -b 1000000 -w 1280 -h 720 -v -o - \| ffmpeg -i - -f alsa -ac 1 -itsoffset 6.5 -i hw:1 -acodec aac -strict -2 -vcodec copy out.m3u8 </code>

	3. Run a cron rsync to server (todo)		3. Run a cron rsync to server (todo)