
Recherche avancée
Médias (1)
-
Video d’abeille en portrait
14 mai 2011, par
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (46)
-
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (8547)
-
Using Unicast RTSP URIs via ffmpeg
6 août 2019, par Chris MarshallI’m fairly new to ffmpeg, so I’d certainly appreciate being given an "M" to "RTFM." The ffmpeg docs are...not-so-easy...to navigate, but I’m trying.
The goal is to develop a compiled server that incorporates ffmpeg, but first, I need to get it working via CLI.
I have a standard AXIS Surveillance camera (AXIS M5525-E), set up as an ONVIF device (but that isn’t really relevant to this issue).
When I query it, I get the following URI as its video streaming URI :
rtsp://192.168.4.12/onvif-media/media.amp?profile=profile_1_jpeg&streamtype=unicast
The IP is local to a sandboxed network.
I add the authentication parameters to it, like so :
rtsp://<login>:<password>@192.168.4.12/onvif-media/media.amp?profile=profile_1_jpeg&streamtype=unicast
</password></login>(Yeah, I know that’s not secure, but this is just for testing and feasibility study. The whole damn sandbox is an insecure mess).
Now, if I use VLC to open the URI, it works great (of course). Looking at it with a packet analyzer, I see the following negotiation between the device and my computer (at .2 - Clipped for brevity) :
Id = 11
Source = 192.168.4.12
Destination = 192.168.4.2
Captured Length = 82
Packet Length = 82
Protocol = TCP
Date Received = 2019-08-06 12:18:37 +0000
Time Delta = 1.342024087905884
Information = 554 -> 53755 ([ECN, ACK, SYN], Seq=696764098, Ack=3139240483, Win=28960)
°
°
°
Id = 48
Source = 192.168.4.12
Destination = 192.168.4.2
Captured Length = 366
Packet Length = 366
Protocol = TCP
Date Received = 2019-08-06 12:18:38 +0000
Time Delta = 2.09382700920105
Information = 554 -> 53755 ([ACK, PUSH], Seq=696765606, Ack=3139242268, Win=1073)Followed immediately by UDP stream packets.
If, however, I feed the same URI to ffmpeg :
ffmpeg -i rtsp://<login>:<password>@192.168.4.12/onvif-media/media.amp?profile=profile_1_jpeg&streamtype=unicast -c:v libx264 -crf 21 -preset veryfast -g 30 -sc_threshold 0 -f hls -hls_time 4 /Volumes/Development/webroot/fftest/stream.m3u8
</password></login>I get nothing. No negotiation at all between the device and my computer.
After that, if I then remove the
&streamtype=unicast
argument, I get a negotiation, and a stream :Id = 10
Source = 192.168.4.12
Destination = 192.168.4.2
Captured Length = 82
Packet Length = 82
Protocol = TCP
Date Received = 2019-08-06 10:37:48 +0000
Time Delta = 3.047425985336304
Information = 554 -> 49606 ([ECN, ACK, SYN], Seq=457514925, Ack=2138974173, Win=28960)
°
°
°
Id = 31
Source = 192.168.4.12
Destination = 192.168.4.2
Captured Length = 345
Packet Length = 345
Protocol = TCP
Date Received = 2019-08-06 10:37:49 +0000
Time Delta = 3.840152025222778
Information = 554 -> 49606 ([ACK, PUSH], Seq=457516393, Ack=2138975704, Win=1039)I will, of course, be continuing to work out why this is [not] happening, and will post any solutions that I find, but, like I said, I’m fairly new to this, so it’s entirely possible that I’m missing some basic stuff, and would appreciate any guidance.
Thanks !
-
ffmpeg 4.1.4 wav to mp3 error of "deprecated pixel format used" [on hold]
26 août 2019, par yang jia[swscaler @ 0xc946d000] deprecated pixel format used, make sure you did set range correctly
[mp3 @ 0xc9621600] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or -vsync 2
[auto_resampler_0 @ 0xd8e73be0] [SWR @ 0xc8058000] Output channel layout '6 channels (FLC+BC+SL+SR+TC+TFL)' is not supported
[auto_resampler_0 @ 0xd8e73be0] Failed to configure output pad on auto_resampler_0
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #0:0
--------- beginning of crash
2019-02-26 16:04:58.368 27737-27737/com.blplayer.jbl.blplayer A/libc: Fatal signal 7 (SIGBUS), code 1, fault addr 0xc5ca in tid 27737 (er.jbl.blplayer)cmd
ffmpeg -i test.wav -acodec libmp3lame -ar 8000 -ac 2 -y wav2mp3.mp3
This is the log :
then on Mac it success egg
ffmpeg -i input.wav -vn -ar 44100 -ac 2 -b:a 192k output.mp3Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from ’input.wav’ :
Metadata :
encoder : Lavf58.20.100
Duration : 00:02:08.29, bitrate : 256 kb/s
Stream #0:0 : Audio : pcm_s16le (1[0][0][0] / 0x0001), 8000 Hz, stereo, s16, 256 kb/s
Stream mapping :
Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp3 (libmp3lame))Output #0, mp3, to ’output.mp3’ :
Metadata :
TSSE : Lavf58.31.104
Stream #0:0 : Audio : mp3 (libmp3lame), 44100 Hz, stereo, s16p, 192 kb/s
Metadata :
encoder : Lavc58.55.101 libmp3lamebut on android it gets error
-
The duration of the combined video with FFmpeg becomes 0
24 août 2019, par sidoI am developing an app for Android by Unity.
When I merge video and audio with FFmpeg, the duration of the output video file is 0 though it can be played back normally.I tried to set duration when merging, but it didn’t work.
The commands being executed are as follows :
-y -i /storage/emulated/0/Android/data/jp.ne.company.app/files/Record/20190824122116_video.mp4 -i /storage/emulated/0/Android/data/jp.ne.company.app/files/Record/20190824122116_audio.mp3 -t 3 -c copy -map 0:v -map 1:a -shortest /storage/emulated/0/Android/data/jp.ne.company.app/files/Record/20190824122116_merged.mp4
I expected that the duration of the merged file was the value set in MovieTime, but the duration of the actually merged file was 0.
The log is as follows :
Started
ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 4.8 (GCC)
configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
libavutil 55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat 57. 25.100 / 57. 25.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 31.100 / 6. 31.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/jp.ne.company.app/files/Record/20190824122116_video.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
creation_time : 2019-08-24 03:21:20
com.android.version: 7.0
Duration: 00:00:03.65, start: 0.000000, bitrate: 2821 kb/s
Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m/smpte170m/bt709), 360x640, 2814 kb/s, SAR 1:1 DAR 9:16, 59.42 fps, 59.94 tbr, 90k tbn, 180k tbc (default)
Metadata:
creation_time : 2019-08-24 03:21:20
handler_name : VideoHandle
[mp3 @ 0xed92f600] Skipping 0 bytes of junk at 880.
Input #1, mp3, from '/storage/emulated/0/Android/data/jp.ne.company.app/files/Record/20190824122116_audio.mp3':
Metadata:
encoder : Lavf57.25.100
Duration: 00:00:03.55, start: 0.025057, bitrate: 257 kb/s
Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 256 kb/s
Metadata:
encoder : Lavc57.24
Output #0, mp4, to '/storage/emulated/0/Android/data/jp.ne.company.app/files/Record/20190824122116_merged.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: isommp42
com.android.version: 7.0
encoder : Lavf57.25.100
Stream #0:0(eng): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 360x640 [SAR 1:1 DAR 9:16], q=2-31, 2814 kb/s, 59.42 fps, 59.94 tbr, 90k tbn, 90k tbc (default)
Metadata:
creation_time : 2019-08-24 03:21:20
handler_name : VideoHandle
Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, stereo, 256 kb/s
Metadata:
encoder : Lavc57.24
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 178 fps=0.0 q=-1.0 Lsize= 1098kB time=00:00:03.00 bitrate=2992.8kbits/s speed= 122x
video:997kB audio:95kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.534772%