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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
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Sur d’autres sites (14120)
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ffplay : do not wait for the picture allocation to finish on exit
29 décembre 2013, par Marton Balintffplay : do not wait for the picture allocation to finish on exit
When SDL could not allocate a YUV overlay or open a window, the video thread
got locked up because it waited for the allocation to finish forever.Reported-by : Carl Eugen Hoyos <cehoyos@ag.or.at>
Signed-off-by : Marton Balint <cus@passwd.hu> -
av_interleaved_write_frame() : Immediate exit requested when streaming WebM
21 décembre 2013, par kd0hdfOk, so I am trying to stream live video from my HD Homerun Prime (a network tv tuner that outputs mpeg2 video) to the web as WebM with ffserver. However, when I start ffmpeg it will run normally for a few seconds (and even output video through ffserver) then after 2-3 seconds it will freeze and I have to use ctrl+c to get back to a prompt.What am I missing here ? Sorry if this is a total newbie question.
I should also mention I followed a tutorial here : https://www.virag.si/2012/11/streaming-live-webm-video-with-ffmpeg/
FFmpeg command
new@Desktop:~$ ffmpeg -i <network tuner="tuner"> <ffserver>
ffmpeg version git-2013-12-12-d546a59 Copyright (c) 2000-2013 the FFmpeg developers
built on Dec 13 2013 21:51:49 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
configuration: --prefix=/home/new/ffmpeg_build --extra-cflags=-I/home/new/ffmpeg_build/include --extra-ldflags=-L/home/new/ffmpeg_build/lib --bindir=/home/new/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
libavutil 52. 58.100 / 52. 58.100
libavcodec 55. 45.101 / 55. 45.101
libavformat 55. 22.100 / 55. 22.100
libavdevice 55. 5.102 / 55. 5.102
libavfilter 3. 92.100 / 3. 92.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
[mpegts @ 0x326f980] Could not find codec parameters for stream 0 (Unknown: none (ETV1 / 0x31565445)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 0x326f980] Could not find codec parameters for stream 1 (Unknown: none (ETV1 / 0x31565445)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mpegts @ 0x326f980] Could not find codec parameters for stream 4 (Unknown: none ([134][0][0][0] / 0x0086)): unknown codec
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mpegts, from 'http://192.168.0.199:5004/auto/v39':
Duration: N/A, start: 85618.589122, bitrate: 192 kb/s
Program 8
Stream #0:0[0x1093]: Unknown: none (ETV1 / 0x31565445)
Stream #0:1[0x1094]: Unknown: none (ETV1 / 0x31565445)
Stream #0:2[0x1095]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv), 704x480 [SAR 10:11 DAR 4:3], max. 15000 kb/s, 29.97 fps, 59.94 tbr, 90k tbn, 59.94 tbc
Stream #0:3[0x1096](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 192 kb/s
Stream #0:4[0x1097]: Unknown: none ([134][0][0][0] / 0x0086)
[libvpx @ 0x3275060] v1.2.0
Output #0, ffm, to 'http://localhost:8090/feed1.ffm':
Metadata:
creation_time : now
encoder : Lavf55.22.100
Stream #0:0(eng): Audio: vorbis (libvorbis), 22050 Hz, mono, fltp, 64 kb/s
Stream #0:1: Video: vp8 (libvpx), yuv420p, 720x576 [SAR 16:15 DAR 4:3], q=10-42, 1000 kb/s, 1000k tbn, 29.97 tbc
Stream mapping:
Stream #0:3 -> #0:0 (ac3 -> libvorbis)
Stream #0:2 -> #0:1 (mpeg2video -> libvpx)
Press [q] to stop, [?] for help
^Cav_interleaved_write_frame(): Immediate exit requested70 bitrate= 936.1kbits/s dup=51 drop=0
Received signal 2: terminating.
new@Desktop:~$
</ffserver></network>FFserver configuration :
Port 8090 # Port to bind the server to
BindAddress 0.0.0.0
MaxHTTPConnections 2000
MaxClients 1000
MaxBandwidth 10000 # Maximum bandwidth per client
# set this high enough to exceed stream bitrate
CustomLog -
NoDaemon # Remove this if you want FFserver to daemonize after start
<feed> # This is the input feed where FFmpeg will send
File /tmp/feed1.ffm # video stream.
FileMaxSize 1G # Maximum file size for buffering video
#ACL allow 127.0.0.1 # Allowed IPs
</feed>
<stream> # Output stream URL definition
Feed feed1.ffm # Feed from which to receive video
Format webm
# Audio settings
AudioCodec vorbis
AudioBitRate 64 # Audio bitrate
# Video settings
VideoCodec libvpx
VideoSize 720x576 # Video resolution
VideoFrameRate 25 # Video FPS
AVOptionVideo flags +global_header # Parameters passed to encoder
# (same as ffmpeg command-line parameters)
AVOptionVideo cpu-used 0
AVOptionVideo qmin 10
AVOptionVideo qmax 42
AVOptionVideo quality good
AVOptionAudio flags +global_header
PreRoll 15
StartSendOnKey
VideoBitRate 1000 # Video bitrate
</stream>
<stream> # Server status URL
Format status
# Only allow local people to get the status
ACL allow localhost
ACL allow 192.168.0.0 192.168.255.255
</stream>
<redirect> # Just an URL redirect for index
# Redirect index.html to the appropriate site
URL <removed url="url" to="to" ffmpeg="ffmpeg" homepage="homepage">
</removed></redirect>...and for the FFserver side
new@Desktop:/var/www$ ffserver -d -f /etc/ffserver.conf
ffserver version git-2013-12-12-d546a59 Copyright (c) 2000-2013 the FFmpeg developers
built on Dec 13 2013 21:51:49 with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
configuration: --prefix=/home/new/ffmpeg_build --extra-cflags=-I/home/new/ffmpeg_build/include --extra-ldflags=-L/home/new/ffmpeg_build/lib --bindir=/home/new/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-x11grab
libavutil 52. 58.100 / 52. 58.100
libavcodec 55. 45.101 / 55. 45.101
libavformat 55. 22.100 / 55. 22.100
libavdevice 55. 5.102 / 55. 5.102
libavfilter 3. 92.100 / 3. 92.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Fri Dec 20 23:53:20 2013 FFserver started.
Fri Dec 20 23:53:29 2013 127.0.0.1 - - New connection: GET /feed1.ffm
Fri Dec 20 23:53:29 2013 127.0.0.1 - - [GET] "/feed1.ffm HTTP/1.1" 200 4175 -
avcodec/vqavideo : check destination size on all exit pathes
21 décembre 2013, par Michael Niedermayer