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  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Soumettre améliorations et plugins supplémentaires

    10 avril 2011

    Si vous avez développé une nouvelle extension permettant d’ajouter une ou plusieurs fonctionnalités utiles à MediaSPIP, faites le nous savoir et son intégration dans la distribution officielle sera envisagée.
    Vous pouvez utiliser la liste de discussion de développement afin de le faire savoir ou demander de l’aide quant à la réalisation de ce plugin. MediaSPIP étant basé sur SPIP, il est également possible d’utiliser le liste de discussion SPIP-zone de SPIP pour (...)

Sur d’autres sites (5955)

  • No module named 'skvideo.io.ffmpeg' in the project

    12 juillet 2024, par kyobo

    Even though I have installed the scikit-video and installed ffmpeg, I still meet this problem :
    
No module named 'skvideo.io.ffmpeg

    


    Output :

    


    (sd) huishi@huishi:~/workspace/projectsideo_python$ **pip install scikit-video**&#xA;Requirement already satisfied: scikit-video in /home/huishi/anaconda3/envs/sdb/python3.8/site-packages (1.1.11)&#xA;Requirement already satisfied: scipy in /home/huishi/anaconda3/envs/sdb/python3.8/site-packages (from scikit-video) (1.8.1)&#xA;Requirement already satisfied: pillow in /home/huishi/anaconda3/envs/sdb/python3.8/site-packages (from scikit-video) (9.2.0)&#xA;Requirement already satisfied: numpy in /home/huishi/anaconda3/envs/sdb/python3.8/site-packages (from scikit-video) (1.23.0)&#xA;(sd) huishi@huishi:~/workspace/projectsideo_python$ **sudo apt-get install ffmpeg**&#xA;正在读取软件包列表... 完成&#xA;正在分析软件包的依赖关系树       &#xA;正在读取状态信息... 完成       &#xA;ffmpeg 已经是最新版 (7:3.4.11-0ubuntu0.1)。&#xA;下列软件包是自动安装的并且现在不需要了：&#xA;  docker-scan-plugin gir1.2-goa-1.0 gir1.2-snapd-1&#xA;使用&#x27;sudo apt autoremove&#x27;来卸载它(它们)。&#xA;升级了 0 个软件包，新安装了 0 个软件包，要卸载 0 个软件包，有 20 个软件包未被升级。&#xA;(sd) huishi@huishi:~/workspace/projectsideo_python$ python RabbitMqUtils.py &#xA;The license has expired.&#xA;/home/huishi/workspace/projectsideo_python/train_resource/train_split.py:12: YAMLLoadWarning: calling yaml.load() without Loader=... is deprecated, as the default Loader is unsafe. Please read https://msg.pyyaml.org/load for full details.&#xA;  tr_configs = yaml.load(f)&#xA;INFO: Created TensorFlow Lite XNNPACK delegate for CPU.&#xA;/home/huishi/anaconda3/envs/sdb/python3.8/site-packages/skvideo/__init__.py:306: UserWarning: ffmpeg/ffprobe not found in path: /usr/local/bin&#xA;  warnings.warn("ffmpeg/ffprobe not found in path: " &#x2B; str(path), UserWarning)&#xA;Traceback (most recent call last):&#xA;  File "RabbitMqUtils.py", line 17, in <module>&#xA;    from video_postprocess import post_Process&#xA;  File "/home/huishi/workspace/projectsideo_pythonideo_postprocess/post_Process.py", line 12, in <module>&#xA;    import skvideo.io&#xA;  File "/home/huishi/anaconda3/envs/sdb/python3.8/site-packages/skvideo/io/__init__.py", line 8, in <module>&#xA;    from .ffmpeg import *&#xA;ModuleNotFoundError: **No module named &#x27;skvideo.io.ffmpeg&#x27;**&#xA;(sd) huishi@huishi:~/workspace/projectsideo_python$&#xA;</module></module></module>

    &#xA;

    I have tried to upgrade pip and skvideo but it doesn't work.

    &#xA;

    How can I solve this problem ?

    &#xA;

  • Trying to use openH264 as an alternative to libX264 in FFMPEG C project

    18 octobre 2019, par tishu

    I have an application that transcodes a video frame by frame using FFMPEG and x264 encoder. I am looking to release this application but the licensing of x264 made me switch to using openh264 instead.

    I managed to compile everything smoothly (openh264 then FFMPEG with enable-openh264). I am now trying to correct the encoder setup in my C code as what worked for libx264 doesn’t work anymore. Unfortunately I found very limited C/C++ examples of FFMPEG/openh264, i would appreciate any link/hint.

    I am using the following code (dec_ctx is the AVCodecContext of the video I am decoding)

                enc_ctx->height = dec_ctx->height;
    
            enc_ctx->width = dec_ctx->width;
    
            enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
    
            /* take first format from list of supported formats */
    
            enc_ctx->pix_fmt = encoder->pix_fmts[0];
    
            /* video time_base can be set to whatever is handy and supported by encoder */
    
            enc_ctx->time_base = dec_ctx->time_base;
    

    
            enc_ctx->gop_size      = 120; /* emit one intra frame every twelve frames at most */
    
            enc_ctx->max_b_frames = 16;
    
            enc_ctx->scenechange_threshold = 0;
    
            enc_ctx->rc_buffer_size = 0;
    
            enc_ctx->me_method = ME_ZERO;
    

    
            enc_ctx->ticks_per_frame = dec_ctx->ticks_per_frame * ifmt_ctx->streams[i]->time_base.den * ifmt_ctx->streams[i]->r_frame_rate.num/ifmt_ctx->streams[i]->r_frame_rate.den;
    
            // Set Ultrafast profile. internal name for this preset is baseline
    
            av_opt_set(enc_ctx->priv_data, "preset", "placebo", AV_OPT_SEARCH_CHILDREN);

    I get the following errors in the output with the [OpenH264] tag :

    [OpenH264] this = 0x0000000019C126C0, Warning:bEnableFrameSkip = 0,bitrate can't be controlled for RC_QUALITY_MODE,RC_BITRATE_MODE and RC_TIMESTAMP_MODE without enabling skip frame.
    
Output #0, mp4, to 'C:\Dev\temp\geoVid.mp4':
    
Stream #0:0: Video: h264 (libopenh264), yuv420p, 720x480, q=2-31, 200 kb/s, 90k tbn, 180k tbc
    
Stream #0:1: Audio: aac, 48000 Hz, stereo, fltp, 96 kb/s
    
[OpenH264] this = 0x0000000019C126C0, Warning:Actual input framerate fAverageFrameRate = 0.000000 is quite different from framerate in setting 60.000000, please check setting or timestamp unit (ms), start_Ts = 0
    
[OpenH264] this = 0x0000000019C126C0, Warning:Actual input framerate fAverageFrameRate = 0.000000 is quite different from framerate in setting 60.000000, please check setting or timestamp unit (ms), start_Ts = 0

    The output video file just plays black frames. Any hint or link to some doc would be appreciated. I have been trying to understand these errors but not too sure how to enable "skip frame" or why it is complaining about my input framerate (this is the same input as when I encode successfully with libx264)

  • Trying to use openH264 as an alternative to libX264 in FFMPEG C project

    5 décembre 2015, par Tishu

    I have an application that transcodes a video frame by frame using FFMPEG and x264 encoder. I am looking to release this application but the licensing of x264 made me switch to using openh264 instead.

    I managed to compile everything smoothly (openh264 then FFMPEG with enable-openh264). I am now trying to correct the encoder setup in my C code as what worked for libx264 doesn’t work anymore. Unfortunately I found very limited C/C++ examples of FFMPEG/openh264, i would appreciate any link/hint.

    I am using the following code (dec_ctx is the AVCodecContext of the video I am decoding)

                enc_ctx->height = dec_ctx->height;
    
            enc_ctx->width = dec_ctx->width;
    
            enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
    
            /* take first format from list of supported formats */
    
            enc_ctx->pix_fmt = encoder->pix_fmts[0];
    
            /* video time_base can be set to whatever is handy and supported by encoder */
    
            enc_ctx->time_base = dec_ctx->time_base;
    

    
            enc_ctx->gop_size      = 120; /* emit one intra frame every twelve frames at most */
    
            enc_ctx->max_b_frames = 16;
    
            enc_ctx->scenechange_threshold = 0;
    
            enc_ctx->rc_buffer_size = 0;
    
            enc_ctx->me_method = ME_ZERO;
    

    
            enc_ctx->ticks_per_frame = dec_ctx->ticks_per_frame * ifmt_ctx->streams[i]->time_base.den * ifmt_ctx->streams[i]->r_frame_rate.num/ifmt_ctx->streams[i]->r_frame_rate.den;
    
            // Set Ultrafast profile. internal name for this preset is baseline
    
            av_opt_set(enc_ctx->priv_data, "preset", "placebo", AV_OPT_SEARCH_CHILDREN);

    I get the following errors in the output with the [OpenH264] tag :

    [OpenH264] this = 0x0000000019C126C0, Warning:bEnableFrameSkip = 0,bitrate can't be controlled for RC_QUALITY_MODE,RC_BITRATE_MODE and RC_TIMESTAMP_MODE without enabling skip frame.
    
Output #0, mp4, to 'C:\Dev\temp\geoVid.mp4':
    
Stream #0:0: Video: h264 (libopenh264), yuv420p, 720x480, q=2-31, 200 kb/s, 90k tbn, 180k tbc
    
Stream #0:1: Audio: aac, 48000 Hz, stereo, fltp, 96 kb/s
    
[OpenH264] this = 0x0000000019C126C0, Warning:Actual input framerate fAverageFrameRate = 0.000000 is quite different from framerate in setting 60.000000, please check setting or timestamp unit (ms), start_Ts = 0
    
[OpenH264] this = 0x0000000019C126C0, Warning:Actual input framerate fAverageFrameRate = 0.000000 is quite different from framerate in setting 60.000000, please check setting or timestamp unit (ms), start_Ts = 0

    The output video file just plays black frames. Any hint or link to some doc would be appreciated. I have been trying to understand these errors but not too sure how to enable "skip frame" or why it is complaining about my input framerate (this is the same input as when I encode successfully with libx264)

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