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Autres articles (32)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • 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 (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

Sur d’autres sites (3706)

  • Revision c040f96e4b : mips msa vp9 subtract block optimization average improvement 3x-4x Change-Id :

    26 juin 2015, par Parag Salasakar

    Changed Paths :
     Modify /vp9/common/vp9_rtcd_defs.pl


     Add /vp9/encoder/mips/msa/vp9_subtract_msa.c


     Modify /vp9/vp9cx.mk



    mips msa vp9 subtract block optimization

    average improvement 3x-4x

    Change-Id : Idbe4d13a00d05ff8be6559b116f416e42c3b4097

  • warning : Could not find codec parameters

    22 juin 2015, par kylel95
    import numpy as np
    
import cv2
    

    
cap = cv2.VideoCapture('camera10.h264') #Captures h264 file from folder
    
while(cap.isOpened()):``
    
    ret, frame = cap.read()
    

    
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    

    
    cv2.imshow('frame', gray)
    
    if cv2.waitKey(20) & 0xFF == ord('q'):
    
        break
    

    
cap.release()
    
cv2.destroyAllWindows()

    Once I run this code I get : warning :

    Could not find codec parameters (../../modules/highgui/src/cap_ffmpeg_impl.hpp:556).

    Does anyone know what the problem is please ?

  • Qt C++ ffmpeg cannot find library

    7 juin 2013, par Carnifrex

    I use Qt 5.0.2 with Mingw 4.7 on windows.

    I'm working on a c++ program and i'm trying to get the duration of video files. I found ffmpeg. Now i tried to compile a simple program but I think it fails with the libraries. I've tried to include both the shared and dev but they both will fail. ( Zeranoe FFmpeg builds)

    This is my pro file :

    TEMPLATE = app
    
CONFIG += console
    
CONFIG -= app_bundle
    
CONFIG -= qt
    

    
SOURCES += main.cpp
    

    
INCLUDEPATH += C:\programming\ffmpeg-20130606-git--win32-shared\bin
    

    
LIBS += -LC:\programming\ffmpeg-20130606-git--win32-shared\bin -lavcodec-55.dll -     lavformat-55.dll -lavutil-52.dll

    i get errors like :

    " :-1 : error : cannot find -lavcodec-55.dll"

    " :-1 : error : cannot find -lavformat-55.dll"

    I've also tried :

    INCLUDEPATH += C:\programming\ffmpeg-20130606-git--win32-dev\include
    
INCLUDEPATH += C:\programming\ffmpeg-20130606-git--win32-dev\lib
    

    
LIBS += -LC:\programming\ffmpeg-20130606-git--win32-dev\lib -lavcodec -lavformat -lavutil
    

    
LIBS += -LC:\programming\ffmpeg-20130606-git--win32-dev\lib -llibavcodec.dll.a -llibavformat.dll.a -llibavutil.dll.a

    Here it gives a error "During startup program exited with code 0x0000135'

    I even tried to include each library individually. But no results..

    This is my main file :

    #include <iostream>
    
using namespace std;
    
extern "C" {
    
  #include <libavcodec></libavcodec>avcodec.h>    // required headers
    
  #include <libavformat></libavformat>avformat.h>
    
}
    
int main(int argc, char**argv) {
    
   av_register_all();             // offending library call
    
   return 0;
    
}
    
</iostream>

    A program simple as this will have 2 outcomes :

    1. the program runs but crashes if i call 'av_register_all()'
    2. It just tells me he cannot find the libraries.

    Can someone tell me what it is i'm doing wrong ? Or even give me a hint ? I can't really find a lot of good documentation on this one.

    Thanks in advance !

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