mmf | Video transcoding ffmpeg frontend in Python | Video Utils library

 by   mrpdaemon Python Version: Current License: GPL-3.0

kandi X-RAY | mmf Summary

kandi X-RAY | mmf Summary

mmf is a Python library typically used in Video, Video Utils applications. mmf has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. However mmf build file is not available. You can download it from GitHub.

Video transcoding ffmpeg frontend in Python
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            kandi-support Support

              mmf has a low active ecosystem.
              It has 2 star(s) with 2 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              mmf has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of mmf is current.

            kandi-Quality Quality

              mmf has 0 bugs and 0 code smells.

            kandi-Security Security

              mmf has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              mmf code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              mmf is licensed under the GPL-3.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

              mmf releases are not available. You will need to build from source code and install.
              mmf has no build file. You will be need to create the build yourself to build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              It has 845 lines of code, 27 functions and 7 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed mmf and discovered the below as its top functions. This is intended to give you an instant insight into mmf implemented functionality, and help decide if they suit your requirements.
            • Parse command line arguments .
            • Initialize the object .
            • Compares two Variables
            • Validate the file compatibility .
            • Find the target file .
            • Collapse thousands .
            • Convert bit rate to string .
            • Extract field from a string .
            • Get the integer field from a line .
            • Calculate the scaled bitrate .
            Get all kandi verified functions for this library.

            mmf Key Features

            No Key Features are available at this moment for mmf.

            mmf Examples and Code Snippets

            No Code Snippets are available at this moment for mmf.

            Community Discussions

            QUESTION

            Are multiple memory mapped files bugged?
            Asked 2022-Mar-31 at 06:21

            when adding a second memory mapped file to my project the first one no longer works cross processes.

            ...

            ANSWER

            Answered 2022-Mar-31 at 06:21

            Turns out garbage collection is the culprit here. To fix this behavior make sure to have a reference to the memory-mapped file for as long as you need the value to be read by other processes.

            Why it still worked with only 1 declaration and no reference to the memory-mapped file is a mystery to me.

            Source https://stackoverflow.com/questions/71685853

            QUESTION

            Inter-process communication (C++ to C#) using Memory mapped file (IOException)
            Asked 2022-Feb-23 at 06:57

            There are two processes: one written in C++ and the other written in C#.

            Simply, C++ process will create a file name "test.dat", map the file to its memory, and keep on writing on it.

            C# process on the other hand will open the file and read whenever there is a change on the memory.

            The problem is that on the C# end, it does not let me open the file. (IOException saying the other process is in use"

            Here is what I've tested.

            ...

            ANSWER

            Answered 2022-Feb-23 at 06:57

            FileStream defaults to only allowing read sharing which is not compatible with how you've opened your c++ file. You need to request write sharing too:

            Source https://stackoverflow.com/questions/71232149

            QUESTION

            ValueError: No gradients provided for any variable (TFCamemBERT)
            Asked 2022-Feb-11 at 13:37

            Currently I am working on Named Entity Recognition in the medical domain using Camembert, precisely using the model: TFCamembert.

            However I have some problems with the fine-tuning of the model for my task as I am using a private dataset not available on Hugging Face.

            The data is divided into text files and annotation files. The text file contains for example:

            ...

            ANSWER

            Answered 2022-Feb-11 at 11:04

            Try transforming your data into the correct format, before feeding it to model.fit:

            Source https://stackoverflow.com/questions/71078218

            QUESTION

            How to set up predefined marks for a specific file extension in vimrc
            Asked 2022-Jan-27 at 15:51

            I often have to work with a text file that serves as input to a scientific model for water quality. The files are pretty long and always have the same named title sections, so it is possible to search them and set marks to be able to easily jump between sections in Vim.

            Is it possible to automate the process of creating these marks from .vimrc? So far I have managed to create a macros that searches the section headers and creates the marks automatically when opening these files:

            ...

            ANSWER

            Answered 2022-Jan-27 at 15:51

            Record macros using double quotes, this allow you to do things like:

            Source https://stackoverflow.com/questions/70806897

            QUESTION

            How to get a list of available resolutions for every camera on Windows C++
            Asked 2022-Jan-14 at 06:22

            I have multiple cameras in my Windows 11 system and I am wondering how to get all avaiable resolutions for them. I am not intending to make a video capture, but I am willing to just get these properties.

            Also, I don't care which API to use, be it DirectShow or MMF (Microsoft Media Foundation). I haven't used any of these before either.

            I have found multiple resources doing that in C# (as in here), but similar suggested answers for C++ are hard to understand - some code is given, but what libraries and 'includes' used is not given (as in here)

            I have also checked DirectShow samples in hope something would be there, but I didn't find anything.

            So, I checked MMF as well (1, 2, 3) and docs, but all posts seem pretty outdated and no full code is given showing how to use certain functions alongside proper 'includes', as trying the code gives me unresolved symbols.

            So I am kind of stuck at the moment, I can't find a solution to this.

            I would appreciate any help.

            ...

            ANSWER

            Answered 2022-Jan-14 at 06:17

            Also, I don't care which API to use, be it DirectShow or MMF (Microsoft Media Foundation). I haven't used any of these before either.

            You generally do care because the data might be different.

            With Media Foundation, see How to Set the Video Capture Format

            Call IMFMediaTypeHandler::GetMediaTypeCount to get the number of supported formats.

            You might also want to have a look at Tanta: Windows Media Foundation Sample Projects and sample code there.

            With DirectShow, see Webcamera supported video formats in addition to links you found; you will have to sort out includes and libraries through, among SDK samples AMCap does some one this and can be built from source without additional external libraries, from original code or from this fork adopted to most recent VS.

            Source https://stackoverflow.com/questions/70704513

            QUESTION

            Converting a list as a dictionary value to a cell in pandas
            Asked 2022-Jan-04 at 09:51

            I have a dictionary for a product I have been scraping on this website: https://www.adamhall.com/shop/gi-en/cables-connectors/pre-assembled-cables/microphone-cables/3323/4-star-mmf-1000 I get the image links as a list into a product dictionary, which I want to import into a DataFrame as a cell value in the column images. However, the output makes the data frame have as many rows as there are image links.

            Here is my code so far:

            ...

            ANSWER

            Answered 2022-Jan-04 at 09:36

            Just enclose your function into a list:

            Source https://stackoverflow.com/questions/70576529

            QUESTION

            How to load sparse matrix in python from MMF file
            Asked 2021-Dec-06 at 13:19

            I need to load data of sparse matrix form (MMF) file, then carry out a linear algebra operation on that matrix. The MMF file is in the following form:

            ...

            ANSWER

            Answered 2021-Oct-04 at 17:17

            From the documentation of mmread in scipy:

            https://docs.scipy.org/doc/scipy/reference/generated/scipy.io.mmread.html

            scipy.io.mmread(source)[source]

            Reads the contents of a Matrix Market file-like ‘source’ into a matrix.

            Parameters sourcestr or file-like Matrix Market filename (extensions .mtx, .mtz.gz) or open file-like object.

            Returns andarray or coo_matrix Dense or sparse matrix depending on the matrix format in the Matrix Market file.

            Scipy should return a sparse matrix, if that is the format of the file.

            Try:

            Source https://stackoverflow.com/questions/69439906

            QUESTION

            extracting mass and stiffness matrices from ANSYS
            Asked 2021-Dec-06 at 11:19

            I am trying to extract both mass and stiffness sparse matrices from modal analysis using ANSYS 15 software, i used next code :

            ...

            ANSWER

            Answered 2021-Oct-21 at 07:33

            I tried running your snippet on ANSYS 2021 R1 and the matrices were not written, but I did not get the stated error. My guess is there was something changed in the order in which *SMAT and *export have to be executed. I can think of two solutions:

            1. APDL

            I export the matrices like this:

            Source https://stackoverflow.com/questions/69606873

            QUESTION

            Parallel file download corruption
            Asked 2021-Nov-26 at 08:57

            I have this code below that is able to download multiple parts of a file in parallel and writes them using a memory mapped file. The problem is occurring in the DownloadFile() function. The file is starting downloads properly, but it is getting corrupted along the way. For example, if I try to download a image, sections of it will be corrupted. I'm not sure if this is from some kind of race conduction in the code or if it has something to do with the content range calculations of the parts. Any help on how or were the issue is occurring would be appreciated, thanks!

            Minimal, Reproducible Example:

            ...

            ANSWER

            Answered 2021-Nov-26 at 08:14

            I figured out the corruption was happening becauase some of the ranges would be bigger than Start-End. I fixed the issue but adding a read-write modifier to both the Memory mapped file and the view stream. Then I changed the size of the view stream to the length of the content returned by the sendAsync request:

            Source https://stackoverflow.com/questions/70118924

            QUESTION

            boost::interprocess::managed_mapped_file deque of strings runs out of space
            Asked 2021-Nov-10 at 18:27

            I am using a boost::interprocess::deque with a memory_mapped_file as a file buffer that lets data survive reboots etc.

            I am creating the buffer like this:

            ...

            ANSWER

            Answered 2021-Nov-10 at 18:27

            Firstly: add some peace and quiet to your code :)

            Source https://stackoverflow.com/questions/69915202

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install mmf

            You can download it from GitHub.
            You can use mmf like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone mrpdaemon/mmf

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