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Autres articles (16)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Qu’est ce qu’un éditorial
21 juin 2013, parEcrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
Vous pouvez personnaliser le formulaire de création d’un éditorial.
Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...) -
Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)
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VLC recorded stream - No VIDEO MPEG2-TS
19 décembre 2017, par Milan Freddy MúčkaI have got problem playing my recorded stream in VLC. Audio is OK, but video seems corrupted.
It was transmitted in MPEG2-TS format and recorded without encoding. When I’m trying to convert in different format, it keeps only audio.
FFmpeg shows errorCould not find codec parameters for stream 1 (Video : mpeg4 (mp4v / 0x7634706D), none, 6000 kb/s) : unspecified size
Consider increasing the value for the ’analyzeduration’ and ’probesize’ optionsI tried more players, but none of them can decode it.
Can I somehow edit video header, or specify codec to use in VLC/FFmpeg ?
Video ID : 2
Codec ID : 0
Bit rate : 6 001 Kbps
Width : 720 pixels
Height : 576 pixels
Display aspect ratio : 5:4
Frame rate : 25.000 fps
Standard : PAL
Stream size : 504 MiB (96%)
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Stream opus audio rtp to android device
7 février 2018, par Yuriy AizenbergI want to stream audio (opus codec) with ffmpeg directly to android device.
On PC i start stream :
./ffmpeg -re -stream_loop -1 -i akgld-c8mxm.opus -acodec libopus -ac 1 -ab 96k -vn -f rtp rtp://192.168.0.100:6000
Where 192.168.0.100 - local wifi address of my phone.
On Android device i tried to play stream :
public void tryPlayStream() {
String ip = Utils.wifiIpAddress(this);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitNetwork().build();
StrictMode.setThreadPolicy(policy);
AudioManager audio = (AudioManager) getSystemService(AUDIO_SERVICE);
audio.setMode(AudioManager.MODE_IN_COMMUNICATION);
audioGroup = new AudioGroup();
audioGroup.setMode(AudioGroup.MODE_ECHO_SUPPRESSION);
InetAddress inetAddress;
try {
inetAddress = InetAddress.getByName(ip);
audioStream = new AudioStream(inetAddress);
audioStream.setCodec(AudioCodec.PCMA);
audioStream.setMode(RtpStream.MODE_RECEIVE_ONLY);
InetAddress inetAddressRemote = InetAddress.getByName(ip);
audioStream.associate(inetAddressRemote, 6000);
audioStream.join(audioGroup);
} catch (Exception e) {
e.printStackTrace();
}
}In logcat i see next lines :
E/AudioRecord: AudioFlinger could not create record track, status: -1
E/AudioGroup: cannot initialize audio deviceWhat im doing wrong ? Thanks for any help
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ffmpeg remove Non-Monotonous DTS frames
24 mars, par MiGu3XIs it possible to stream copy a .ts file to another .ts file by removing the Non-Monotonous DTS frames ? These frames usually also have a smaller resolution than the video I am trying to copy. I attempted this with VideoReDo but it did not work and I cannot seem to make it work.



Also, the MediaInfo for the video after remixed to Matrosks shows this :



Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.2
Format settings : CABAC / 2 Ref Frames
Format settings, CABAC : Yes
Format settings, RefFrames : 2 frames
Codec ID : V_MPEG4/ISO/AVC
Duration : 2 h 35 min
Nominal bit rate : 6 000 kb/s
Width : 896 pixels
Original width : 1 280 pixels
Height : 504 pixels
Original height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 30.000 FPS
Original frame rate : 60.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.443
Writing library : x264 core 148 r2579M 73ae2d1
Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=4 / lookahead_threads=1 / sliced_threads=0 / nr=250 / decimate=1 / interlaced=0 / bluray_compat=0 / stitchable=1 / constrained_intra=0 / bframes=0 / weightp=1 / keyint=122 / keyint_min=12 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=2pass / mbtree=1 / bitrate=6000 / ratetol=1.0 / qcomp=0.60 / qpmin=5 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No




Thanks for the help !