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Autres articles (72)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

Sur d’autres sites (4954)

  • Animated line chart with pandas, matplotlib and ffmpeg

    10 avril 2020, par Mark K

    In producing an animated line chart, I have below data and codes.

    



    But when the chart produced, it shows no line. What did I do wrong ?

    



    Thank you.

    



    import numpy as np
import pandas as pd
import seaborn as sns
import matplotlib
import matplotlib.pyplot as plt
import matplotlib.animation as animation

title = 'Heroin Overdoses'

data = {'Year' : ["1999","2000","2001","2002","2003","2004","2005","2006","2007","2008","2009","2010","2011","2012","2013","2014","2015","2016"], 
'Heroin Overdoses' : [280,443,413,486,475,148,197,170,448,103,137,160,483,356,352,300,466,278]}
overdose = pd.DataFrame(data)

Writer = animation.writers['ffmpeg']
writer = Writer(fps=20, metadata=dict(artist='Me'), bitrate=1800)

fig = plt.figure(figsize=(10,6))
plt.xlim(1999, 2016)
plt.ylim(np.min(overdose)[0], np.max(overdose)[0])
plt.xlabel('Year',fontsize=20)
plt.ylabel(title,fontsize=20)
plt.title('Heroin Overdoses per Year',fontsize=20)

def animate(i):
    data = overdose.iloc[:int(i+1)] #select data range
    p = sns.lineplot(x=data.index, y=data[title], data=data, color="r")
    p.tick_params(labelsize=17)
    plt.setp(p.lines,linewidth=7)

ani = matplotlib.animation.FuncAnimation(fig, animate, frames=17, repeat=True)

ani.save('C:\\folder\\line chart.mp4', writer=writer)


    


  • aarch64 : hevc : Produce epel_uni_w_hv functions for both neon and i8mm

    20 mars 2024, par Martin Storsjö
    aarch64 : hevc : Produce epel_uni_w_hv functions for both neon and i8mm
    

    AWS Graviton 3 :
    put_hevc_epel_uni_w_hv4_8_c : 191.2
    put_hevc_epel_uni_w_hv4_8_neon : 87.7
    put_hevc_epel_uni_w_hv4_8_i8mm : 83.2
    put_hevc_epel_uni_w_hv6_8_c : 349.5
    put_hevc_epel_uni_w_hv6_8_neon : 153.0
    put_hevc_epel_uni_w_hv6_8_i8mm : 148.5
    put_hevc_epel_uni_w_hv8_8_c : 581.2
    put_hevc_epel_uni_w_hv8_8_neon : 166.7
    put_hevc_epel_uni_w_hv8_8_i8mm : 163.5
    put_hevc_epel_uni_w_hv12_8_c : 1230.0
    put_hevc_epel_uni_w_hv12_8_neon : 387.7
    put_hevc_epel_uni_w_hv12_8_i8mm : 370.2
    put_hevc_epel_uni_w_hv16_8_c : 2003.2
    put_hevc_epel_uni_w_hv16_8_neon : 501.5
    put_hevc_epel_uni_w_hv16_8_i8mm : 490.2
    put_hevc_epel_uni_w_hv24_8_c : 4448.7
    put_hevc_epel_uni_w_hv24_8_neon : 1092.2
    put_hevc_epel_uni_w_hv24_8_i8mm : 1069.7
    put_hevc_epel_uni_w_hv32_8_c : 7817.2
    put_hevc_epel_uni_w_hv32_8_neon : 1916.2
    put_hevc_epel_uni_w_hv32_8_i8mm : 1829.5
    put_hevc_epel_uni_w_hv48_8_c : 16728.2
    put_hevc_epel_uni_w_hv48_8_neon : 4263.7
    put_hevc_epel_uni_w_hv48_8_i8mm : 4342.7
    put_hevc_epel_uni_w_hv64_8_c : 29563.2
    put_hevc_epel_uni_w_hv64_8_neon : 7474.2
    put_hevc_epel_uni_w_hv64_8_i8mm : 7128.5

    Signed-off-by : Martin Storsjö <martin@martin.st>

    • [DH] libavcodec/aarch64/hevcdsp_epel_neon.S
    • [DH] libavcodec/aarch64/hevcdsp_init_aarch64.c
  • Artifact while streaming multicast with ffmpeg

    17 août 2018, par Nicosmik

    Locally, from my windows machine with ffmpeg 3.3.2 from Zeranoe

    ffmpeg version 3.2.2 Copyright (c) 2003-2016 the FFmpeg developers
    built with gcc 5.4.0 (GCC)
    configuration : —enable-gpl
    —enable-version3 —enable-dxva2 —enable-libmfx —enable-nvenc —enable-avisynth —enable-bzlib —enable-fontconfig —enable-frei0r —enable-gnutls —enable-iconv —enable-libass —enable-libbluray —enable-libbs2b —enable-libcaca —enable-libfreetype —enable-libgme —enable-libgsm —enable-libilbc —enable-libmodplug —enable-libmp3lame —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-libopenh264 —enable-libopenjpeg —enable-libopus —enable-librtmp —enable-libsnappy —enable-libsoxr —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvo-amrwbenc —enable-libvorbis —enable-libvpx —enable-libwavpack —enable-libwebp —enable-libx264 —enable-libx265 —enable-libxavs —enable-libxvid —enable-libzimg —enable-lzma —enable-decklink —enable-zlib

    Server side

    Launch udp multicast streaming.

    ffmpeg -re -i video.ts -an -f mpegts -c copy udp://224.1.1.1:5000

    Client side

    Playing with ffplay is correct, no artifacts displayed

    ffplay udp://224.1.1.1:5000

    Playing after decoding cause artifacts

    ffmpeg -i udp://224.1.1.1:5000 -pix_fmt gray -f avi - | ffplay -

    or

    ffmpeg -f mpegts -i udp://224.1.1.1:5000 -pix_fmt gray -c:v rawvideo -f avi out.avi

    Does someone has an explanation ?