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GetID3 - Bloc informations de fichiers
9 avril 2013, par
Mis à jour : Mai 2013
Langue : français
Type : Image
Autres articles (80)
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Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
La sauvegarde automatique de canaux SPIP
1er avril 2010, parDans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...) -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...)
Sur d’autres sites (7180)
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Different code(.java file) for different platform ?
2 mars 2016, par AR792I have a code where image data is passed from bitmap to FFmpeg frame recorder and converted to a video. But i need to make small changes while running it on LG G3(armv7) from Asus zenfone 5(x86).
Following are the class variables that create the issue :(declared under, class Main Activity)
inputWidth = 1024 ;
inputHeight = 650 ;
Following is the method where the issue occurs :
byte [] getNV21(int inputWidth, int inputHeight, Bitmap bitmap) {
int [] argb = new int[inputWidth * inputHeight];
bitmap.getPixels(argb, 0, inputWidth, 0, 0, inputWidth, inputHeight);
byte [] yuv = new byte[inputWidth*inputHeight*3/2];
encodeYUV420SP(yuv, argb, inputWidth, inputHeight);
return yuv;
}
void encodeYUV420SP(byte[] yuv420sp, int[] argb, int width, int height) {
final int frameSize = width * height;
int yIndex = 0;
int uvIndex = frameSize;
int a, R, G, B, Y, U, V;
int index = 0;
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
a = (argb[index] & 0xff000000) >> 24; // a is not used obviously
R = (argb[index] & 0xff0000) >> 16;
G = (argb[index] & 0xff00) >> 8;
B = (argb[index] & 0xff) >> 0;
// well known RGB to YUV algorithm
Y = ( ( 66 * R + 129 * G + 25 * B + 128) >> 8) + 16;
U = ( ( -38 * R - 74 * G + 112 * B + 128) >> 8) + 128;
V = ( ( 112 * R - 94 * G - 18 * B + 128) >> 8) + 128;
// NV21 has a plane of Y and interleaved planes of VU each sampled by a factor of 2
// meaning for every 4 Y pixels there are 1 V and 1 U. Note the sampling is every other
// pixel AND every other scanline.
yuv420sp[yIndex++] = (byte) ((Y < 0) ? 0 : ((Y > 255) ? 255 : Y));
if (j % 2 == 0 && index % 2 == 0) {
yuv420sp[uvIndex++] = (byte)((V<0) ? 0 : ((V > 255) ? 255 : V));
yuv420sp[uvIndex++] = (byte)((U<0) ? 0 : ((U > 255) ? 255 : U));
}
index ++;
}
}
}Working CODE :
LG G3 :I can use the above variables at any place in the code to get the required output.
Bitmap size returned = 2734200Asus Zenfone 5 : Except at creating the bitmap, I have to use everywhere else bitmap.getHeight() and bitmap.getWidth(), to get the required output.
Surprisingly here Bitmap size returned = 725760 (So its not setting according to set bitmap parameters ?)
INCORRECT CODE :
LG G3 : IF i use bitmap.getHeight() and bitmap.getWidth(), i get java.lang.ArrayIndexOutOfBoundsException : length = 102354 , index = 102354. @getNV21 method
Asus Zenfone 5 : If i use inputWidth , inputHeight i get
java.lang.IllegalArgumentException : x + width must be <= bitmap.width() @getNV21 methodHow can i generalize the above code for both phones ?
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When I run code in Docker I get a Django error [Errno 2]. When running locally everything works. Why ?
8 février 2021, par Bartłomiej KokoszkaI don't know what's going on. A script run by Django works fine, but not through Docker and Django. An error is returned :


Pic Errno 2 No such file or directory


Below is the code of the function with the error and the code of the Dockerfile.


'''


def mediainfo(filepath):
 


Original code :




prober = get_prober_name()
 command_args = [
 "-v", "quiet",
 "-show_format",
 "-show_streams",
 filepath
 ]

 command = [prober, '-of', 'old'] + command_args




Modified code :




command = f"ffprobe -v error -show_format -show_streams -select_streams v:0 {filepath}"




The rest of the functions :


res = Popen(command, stdout=PIPE)
 output = res.communicate()[0].decode("utf-8")

 if res.returncode != 0:
 output = Popen(command, stdout=PIPE).communicate()[0].decode("utf-8")

 rgx = re.compile(r"(?:(?P.*?):)?(?P<key>.*?)\=(?P<value>.*?)$")
 info = {}

 if sys.platform == 'win32':
 output = output.replace("\r", "")

 for line in output.split("\n"):
 # print(line)
 mobj = rgx.match(line)

 if mobj:
 # print(mobj.groups())
 inner_dict, key, value = mobj.groups()

 if inner_dict:
 try:
 info[inner_dict]
 except KeyError:
 info[inner_dict] = {}
 info[inner_dict][key] = value
 else:
 info[key] = value

 return info
</value></key>

'''


Code of the Dockerfile


'''


FROM python:3.7 as base

EXPOSE 80

WORKDIR /app
COPY . /app


ENV PYTHONDONTWRITEBYTECODE=1

ENV PYTHONUNBUFFERED=1

RUN pip install --upgrade pip
RUN echo 'deb http://deb.debian.org/debian buster-backports main contrib non-free' >> /etc/apt/sources.list
RUN apt-get update

RUN apt-get -y install ffmpeg
RUN apt-get update

COPY requirements.txt .
RUN python -m pip install -r requirements.txt

FROM base as prod

ENTRYPOINT ["python","manage.py","runserver","0.0.0.0:80"]


'''


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ffmpeg source code modification [closed]
27 novembre 2011, par adismscAnybody is able to help me modify source code of an ffmpeg in a way that during encoding to an mpeg-ts container SDT tables were not added ? Or if is it possible : how to disable SDT tables in encoding process ?
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