Recherche avancée

Médias (0)

Mot : - Tags -/content

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (98)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP 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 (...)

  • ANNEXE : Les plugins utilisés spécifiquement pour la ferme

    5 mars 2010, par

    Le site central/maître de la ferme a besoin d’utiliser plusieurs plugins supplémentaires vis à vis des canaux pour son bon fonctionnement. le plugin Gestion de la mutualisation ; le plugin inscription3 pour gérer les inscriptions et les demandes de création d’instance de mutualisation dès l’inscription des utilisateurs ; le plugin verifier qui fournit une API de vérification des champs (utilisé par inscription3) ; le plugin champs extras v2 nécessité par inscription3 (...)

Sur d’autres sites (10368)

  • Windows - FFmpeg - How to map a jpg file to video stream 0:0 and include only audio stream 0:2 and not stream 0:1 and 0:2 together

    21 juin 2020, par slyfox1186

    I am trying to write a batch script that begins by extracting a thumbnail "Cover.jpg" from an mkv video. My end goal is to have this script recursively loop a folder full of videos to encode them all in one go.

    



    :: create cover art jpg
for %%G in (*.mkv) do (
%FF% -hide_banner -ss 30 -y -i "%%G" -vframes 1 -an Cover.jpg
)


    



    Then I am trying to encode the 4K mkv video that I got the jpg thumbnail from to 1920x1080 resolution instead of it's native 4K to make it easier to play back on my home plex server.

    



    I have surround sound 6 channel speaker system so I want to take audio stream 0:2 which is Dolby DTS 6 channel and save some HDD space by converting it to -c:a ac3 -b:a 640k -ac 6.

    



    I have gotten stuck because I can achieve everything I want except I keep encoding 2 of the 4 audio streams available in the end. I only want to keep 1 audio stream to maximize my space savings.

    



    Here is the entire script so far.

    



    @echo off
setlocal enabledelayedexpansion
prompt $g
color 0a

pushd "%~dp0"

set FF=C:\MAB\local64\bin-video\ffmpeg.exe
set TITLE=MOVIETITLE

:: create cover art jpg file
for %%G in (*.mkv) do (
%FF% -hide_banner -ss 30 -y -i "%%G" -vframes 1 -an Cover.jpg
)

:: run ffmpeg x265
for %%I in (*.mkv) do (
set fname="%%~nxI"
set fout="%%~nI-temp.mkv"
call :runff !fname! !fout!
del /s /q *.jpg
pause
goto:eof
)

:runff
%FF% -ss 0 ^
-y ^
-i "%~1" ^
-attach "Cover.jpg" ^
-map_metadata 0 ^
-map_chapters 0 ^
-metadata title="%TITLE%" ^
-map 0:0 -metadata:s:v:0 language=eng ^
-map 0:2 -metadata:s:a:0 language=eng -metadata:s:a:0 title="Surround 5.1 (DTS)" ^
-map 0:3 -metadata:s:s:0 language=eng -metadata:s:s:0 title="English" -metadata:s:t:0 filename="Cover.jpg" -metadata:s:t:0 mimetype="image/jpeg" ^
-c:v libx265 -preset medium ^
-x265-params crf=18:qcomp=0.8:aq-mode=1:aq_strength=1.0:qg-size=16:psy-rd=0.7:psy-rdoq=5.0:rdoq-level=1:merange=44 ^
-c:a ac3 -b:a 640k -ac 6 ^
-t 3 ^
"%~2"
exit /b


    



    Here are the output logs. https://pastebin.com/hVMy3VJW

    



    You can see towards the bottom that it is encoding both audio streams.

    



    Any ideas guys ?

    


  • Assertion error when encoding video using ffmpeg library on visual studio c++

    18 juin 2015, par Leon Phan

    I have a project, that i need to received data from a rtsp link, decode,resize video, encode it and save to .mp4 file.

    this is my code :

    AVPacket destPacket;
    av_init_packet(&destPacket);
    destPacket.data = NULL;
    destPacket.size = 0;
    while(av_read_frame(i_format_context, &packet)>=0) {
       if(packet.stream_index==video_stream_index) {
           int rest = avcodec_decode_video2(copyInputCodec, pFrame, &frameFinished, &packet);
           if(frameFinished) {
               av_init_packet(&destPacket);
               destPacket.data = NULL;
               destPacket.size = 0;
               av_free_packet(&destPacket);
               //deocde here
               int ret_scale = sws_scale(sws_ctx,pFrame->data,pFrame->linesize,0,copyInputCodec->height,encodeFrame->data,encodeFrame->linesize);
               encodeFrame->pts=i;
               int ret_enc = avcodec_encode_video2(copyOutputCodec,&destPacket,encodeFrame,&encodeFinishsed);//<--- Problem here.
               getchar();
           }
       }
    }

    And this is output error

    [swscaler @ 00607880] Warning : data is not aligned ! This can lead to a
    speedlo ss
    Assertion avctx->codec->encode2 failed at /home/kyle/software/ffmpeg/source/ffmp
    eg-git/libavcodec/utils.c:2134

    I try to run many sample code to encode video, the result is same.

    Thanks for help.

    PS : sorry about my English skill.

  • How to write a unit test class that creates a new process in C#

    12 mars 2023, par IceAge

    I have a question about how to write unit test method that creates a new process.

    


    At the moment I write a normal unit test to create a process, but it's very difficult to setup.

    


    This is my code I want to test.

    


    using System;&#xA;using System.Collections.Generic;&#xA;using System.Diagnostics;&#xA;using System.IO;&#xA;using System.Linq;&#xA;using System.Text;&#xA;using System.Text.RegularExpressions;&#xA;using System.Threading.Tasks;&#xA;&#xA;namespace xxx&#xA;{&#xA;    public class FFmPeg&#xA;    {&#xA;        private Process _process;&#xA;        private string ffmpegPath { get; set; }&#xA;        private Regex _durationRegex;&#xA;&#xA;        public event EventHandler<string> OutputData;&#xA;        public event EventHandler<int> ProgressChange;&#xA;&#xA;        public FFmPeg()&#xA;        {&#xA;            _process = new Process();&#xA;            ffmpegPath = Path.Combine(Directory.GetCurrentDirectory(), "engine", "ffmpeg.exe");&#xA;        }&#xA;&#xA;        public void Run(string Argument)&#xA;        {&#xA;            _process.StartInfo.FileName = ffmpegPath;&#xA;            _process.StartInfo.Arguments = $"{Argument} -y";&#xA;            _process.StartInfo.UseShellExecute = false;&#xA;            _process.StartInfo.RedirectStandardOutput = true;&#xA;            _process.StartInfo.RedirectStandardError = true;&#xA;            _process.StartInfo.StandardOutputEncoding = Encoding.UTF8;&#xA;            _process.StartInfo.CreateNoWindow = true;&#xA;            _process.OutputDataReceived &#x2B;=(o,e) =>&#xA;                     {&#xA;                     };&#xA;            _process.ErrorDataReceived &#x2B;= (o, e) =>&#xA;            {&#xA;                if (string.IsNullOrEmpty(e.Data) == false)&#xA;                {&#xA;                    OnProgressChange(OutputExtractor.GetProgress(e.Data));&#xA;                }//end if.check data is not empty&#xA;            };&#xA;&#xA;            _process.Start();&#xA;            _process.BeginOutputReadLine();&#xA;            _process.BeginErrorReadLine();&#xA;            _process.WaitForExit();&#xA;        } //end method&#xA;&#xA;        protected virtual void OnProgressChange(int progress)&#xA;        {&#xA;            ProgressChange?.Invoke(this,progress);&#xA;        } //end method&#xA;&#xA;        protected virtual void OnOutputData(string data)&#xA;        {&#xA;            OutputData?.Invoke(this, data);&#xA;        }&#xA;    }&#xA;}&#xA;</int></string>

    &#xA;

    Thanks for any helpful answers, and sorry for my English.

    &#xA;