Academic literature on the topic 'Convert video files to mp4'
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Journal articles on the topic "Convert video files to mp4"
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Parapat, Rosdelima. "Kompresi Video Digital Menggunakan Metode Embedded Zerotree Wavelet (EZW)." Journal of Computing and Informatics Research 1, no. 3 (July 31, 2022): 65–70. http://dx.doi.org/10.47065/comforch.v1i3.320.
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In the era of technology in the field of multimedia, especially in processing moving images or often called digital video, it is very fast and competes in image and sound quality. Video files in MP4 format are very widely used today on social media which results in little storage space remaining in memory. Data compression is a process that can convert an input data stream (original data) into another data stream (compressed data) which has a smaller size. The compression process is the process of reducing the size of a data to produce a digital representation that is dense or compact but can still represent the quantity of information contained. Digital video is a computer file that is used to store a collection of digital files such as video, audio, metadata, information, chapter divisions, and titles at once, which can be played or used through certain software on a computer. There are many data compression methods currently available, but in this study the working principle of the EZW method will be discussed. The Embedded Zerotree Wavelet (EZW) method is an image compression algorithm that is simple, very effective, has properties where the bits in the bit stream are sorted according to their importance and produces a fully embedded code
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Siregar, Rewindo. "Perancangan Aplikasi Duplicate Video Scanner Menerapkan Algoritma Sha-256." Bulletin of Artificial Intelligence 1, no. 1 (April 30, 2022): 25–32. http://dx.doi.org/10.62866/buai.v1i1.6.
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In this increasingly advanced era, new technologies that have never been imagined before are increasingly emerging, starting from the emergence of computers, cellphones, and many more. One of the emerging technologies is MPEG4 (Moving Picture Expert Group)-4 Video Player 3 or better known as MP4. MP4 Player can make a person listen to video digitally, no need to use cassettes or CDs like in the past and allows millions of people around the world to exchange music recordings through computers connected to computer networks. MP4 format which is commonly played by MP4 Player is one of the most frequently used video formats in video data storage. In cryptography there is a hash function which is a one-way encryption that produces a value that has a fixed length of a message. In this case the intended message is a video file. The hash function can be used to generate the identity of a video file, where if there are two or more video files that have the same hash value, it can be concluded that the video file is duplicate or duplicate. This will certainly make it easier for users to delete duplicate or duplicate video files.
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D.P., Gangwar, Anju Pathania, Anand -, and Shivanshu -. "AUTHENTICATION OF DIGITAL MP4 VIDEO RECORDINGS USING FILE CONTAINERS AND METADATA PROPERTIES." International Journal of Computer Science Engineering 10, no. 2 (April 30, 2021): 28–38. http://dx.doi.org/10.21817/ijcsenet/2021/v10i2/211002004.
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The authentication of digital video recording plays a very important role in forensic science as well as for other crime investigation purposes. The field of forensic examination of digital video is continuously facing new challenges. At present the authentication of the video is carried out on the basis of pixel-based analysis. Due to the change in technology, it was felt that a new approach is required for the authentication of digital video recordings. In the present work a new approach i.e. analysis of media Information and structural analysis of video containers (boxes/ atoms) of mp4 file format have been applied for identification of original and edited videos. This work is limited only for Mp4 file format because the MP4 compressed format is widely used in most of the mobile phone for video recording and transmission purposes. For this purpose, we recorded more than 200 video samples using more than 20 different mobile phones of different make and models and more than 12 video editors, which are available in open source used for editing purpose. The original and edited MP4 video files were analyzed for their different metadata and structural contents analysis of different file containers (boxes/atoms) using different freeware tools. The details of the work are described below.
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ALEKSEY S., GERASKIN, and UKOLOV RODION V. "RESEARCH ON APPLICATION OF NEURAL NETWORKS FOR RESTORING DAMAGED VIDEO FILES OF AVI AND MP4 FORMATS." CASPIAN JOURNAL: Control and High Technologies 55, no. 3 (2021): 25–32. http://dx.doi.org/10.21672/2074-1707.2021.55.3.025-032.
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In the modern world, video files play a special role. The development of video compression algorithms and the growth of the Internet’s capabilities make it possible to transfer video files. Damage inevitably occurs when transferring video files. Accordingly, the question arises about restoring a damaged file and obtaining information from it. The article discusses the most commonly used video file extensions AVI, MP4. As a result of the study, it was revealed that the most common damage is in the headers, which leads to errors when opening files by players, data is damaged less often. Data corruption leads to the fact that a certain fragment of the video file is either played with errors, distortions, or is skipped. The article discusses the possibility of recovering damaged video file using the removal of undistorted data and proposes an algorithm for analyzing frames using a neural network. As part of the algorithm, a neural network is used to identify damaged frames in video data. The algorithm was implemented as a software product. For the first stage of checking the efficiency of the algorithm, deliberate distortions of one frame were made for each video file under study. As a result of experimental verification of the developed algorithm, it was revealed that it provides high accuracy in detecting distorted frame sequences.
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Zawali, Bako, Richard A. Ikuesan, Victor R. Kebande, Steven Furnell, and Arafat A-Dhaqm. "Realising a Push Button Modality for Video-Based Forensics." Infrastructures 6, no. 4 (April 2, 2021): 54. http://dx.doi.org/10.3390/infrastructures6040054.
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Complexity and sophistication among multimedia-based tools have made it easy for perpetrators to conduct digital crimes such as counterfeiting, modification, and alteration without being detected. It may not be easy to verify the integrity of video content that, for example, has been manipulated digitally. To address this perennial investigative challenge, this paper proposes the integration of a forensically sound push button forensic modality (PBFM) model for the investigation of the MP4 video file format as a step towards automated video forensic investigation. An open-source multimedia forensic tool was developed based on the proposed PBFM model. A comprehensive evaluation of the efficiency of the tool against file alteration showed that the tool was capable of identifying falsified files, which satisfied the underlying assertion of the PBFM model. Furthermore, the outcome can be used as a complementary process for enhancing the evidence admissibility of MP4 video for forensic investigation.
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Rakha Maulana, Bahteramon Bintang Sanjaya Manurung, Nathanael Berliano Novanka Putra, and Aqwam Rosadi Kardian. "Efficiency Analysis of Compression Software (WINRAR and 7-Zip) Across Diverse Data Types on Windows 11 and Ubuntu 23.10." Jurnal Info Sains : Informatika dan Sains 13, no. 03 (December 11, 2023): 921–26. http://dx.doi.org/10.54209/infosains.v13i03.3505.
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This paper presents a comprehensive analysis of the performance and efficiency of two widely used compression software, WINRAR and 7-Zip, across various data types. The study focuses on evaluating their effectiveness on different operating systems, specifically Windows 11 and Ubuntu 23.10. The analysis encompasses considerations such as compression ratios, resource utilization, and processing times. WINRAR and 7-Zip are examined in diverse scenarios, including the compression of text files (.txt), image files (.png), audio files (.flac), and video files (.mp4). The study reveals notable variations in compression outcomes influenced by intrinsic complexities of each file format. Moreover, the investigation extends beyond the initially studied operating systems, suggesting potential applications on other platforms like Kali Linux. The findings contribute insights into the nuanced performance of compression software across varied data types and operating environments, facilitating informed decision-making for users seeking optimal compression solutions.
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Koptyra, Katarzyna, and Marek R. Ogiela. "Steganography in IoT: Information Hiding with Joystick and Touch Sensors." Sensors 23, no. 6 (March 20, 2023): 3288. http://dx.doi.org/10.3390/s23063288.
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This paper describes a multi-secret steganographic system for the Internet-of-Things. It uses two user-friendly sensors for data input: thumb joystick and touch sensor. These devices are not only easy to use, but also allow hidden data entry. The system conceals multiple messages into the same container, but with different algorithms. The embedding is realized with two methods of video steganography that work on mp4 files, namely, videostego and metastego. These methods were chosen because of their low complexity so that they may operate smoothly in environments with limited resources. It is possible to replace the suggested sensors with others that offer similar functionality.
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Krittinatham, W., K. Kaewkhong, and N. Emarat. "Python programming code for stellar photometry in astrophysics teaching on a cloud computing service." Journal of Physics: Conference Series 2431, no. 1 (January 1, 2023): 012038. http://dx.doi.org/10.1088/1742-6596/2431/1/012038.
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Abstract Nowadays, there is various software used for both education and astronomy research. For photometry, licensed software and high-performance computer operating systems are required, which is a fund limitation for some schools in Thailand. Thus, in this article, we develop and present the Demonstration Photometry Scripts for Astrophysics Teaching (DPSAT version 1.0). The program is designed to work on cloud computing services via internet browsers to avoid hardware and operation requirement pain points. The DPSAT is programming on flexible, low-cost, on-trend language, Python, and Jupyter Notebook online editor. In advance, our new code supports the home-use image or video file format, i.e., jpg, png, or mp4. Thus, it will be more accessible for teachers and students who do not have standard astronomical instruments. The DPSAT measures the stellar light intensity from the time-series still-images or video files from a smartphone or other digital devices. The code can extract video files into sequenced still images, then transform the RGB color space images into greyscale. The light intensity signal of selected pixels is counted with a simple aperture method in time series. It shows the results, for example, the mean signal, standard variation, measured signal as light intensity versus time, and image of light sources. This will be fruitful for low-cost and easily accessible teaching of astrophysics subjects.
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Zhao, Hongna, Chunxi Li, Yongxiang Zhao, Baoxian Zhang, and Cheng Li. "Transcoding Based Video Caching Systems: Model and Algorithm." Wireless Communications and Mobile Computing 2018 (August 1, 2018): 1–8. http://dx.doi.org/10.1155/2018/1818690.
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The explosive demand of online video watching brings huge bandwidth pressure to cellular networks. Efficient video caching is critical for providing high-quality streaming Video-on-Demand (VoD) services to satisfy the rapid increasing demands of online video watching from mobile users. Traditional caching algorithms typically treat individual video files separately and they tend to keep the most popular video files in cache. However, in reality, one video typically corresponds to multiple different files (versions) with different sizes and also different video resolutions. Thus, caching of such files for one video leads to a lot of redundancy since one version of a video can be utilized to produce other versions of the video by using certain video coding techniques. Recently, fog computing pushes computing power to edge of network to reduce distance between service provider and users. In this paper, we take advantage of fog computing and deploy cache system at network edge. Specifically, we study transcoding based video caching in cellular networks where cache servers are deployed at the edge of cellular network for providing improved quality of online VoD services to mobile users. By using transcoding, a cached video can be used to convert to different low-quality versions of the video as needed by different users in real time. We first formulate the transcoding based caching problem as integer linear programming problem. Then we propose a Transcoding based Caching Algorithm (TCA), which iteratively finds the placement leading to the maximal delay gain among all possible choices. We deduce the computational complexity of TCA. Simulation results demonstrate that TCA significantly outperforms traditional greedy caching algorithm with a decrease of up to 40% in terms of average delivery delay.
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Fang, Jin, Jun Xiang, Li Ma, Hao Liu, Chenxiang Wang, and Shan Liang. "Gas-Driven Endoscopic Robot for Visual Inspection of Corrosion Defects Inside Gas Pipelines." Processes 11, no. 4 (April 4, 2023): 1098. http://dx.doi.org/10.3390/pr11041098.
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The internal inspection of corrosion in large natural gas pipelines is a fundamental task for the prevention of possible failures. Photos and videos provide direct proof of internal corrosion defects. However, the implementation of this technique is limited by fast robot motion and poor lighting conditions, with high-quality images being key to its success. In this work, we developed a natural gas-driven pipeline endoscopic robot (GDPER) for the visual inspection of the inner wall surfaces of pipelines. GDPER consists of driving, odometer, and vision modules connected by universal joints. It is designed to work in a 154 mm gas-pressurized pipeline up to a maximum of 6 MPa, allowing it to smoothly pass through bends and cross-ring welds at a maximum speed of 3 m/s using gas pressure driving. Test results have shown that HD MP4 video files can be obtained, and the location of defects on the pipelines can be detected by intelligent video image post-processing. The gas-driven function enables the survey of very long pipelines without impacting the transport of the pipage.
Books on the topic "Convert video files to mp4"
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Convert Videos to MP4 for Seamless Workflow. Vidconverter, 2024.
Find full textBook chapters on the topic "Convert video files to mp4"
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Pournelle, Jerry. "Multimedia and You." In 1001 Computer Words You Need to Know. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195167757.003.0017.
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While we haven’t yet reached the age of true interactive Internet, there are many video, audio and multimedia formats you will encounter that can enrich your computing experience. The big three are Windows Media Player, Quicktime, and RealPlayer. All three are compatible with Macintosh and Windows, although you may have to download them. Each handles streaming audio and video, and downloadable formats such as MP3 and MPEG. All three programs will automatically download software, if available, when they need it to play a file, and each has plugins which are automatically installed for use by your web browser, so you can play multimedia content directly from a web page. Be aware that the three programs will battle for control over which program plays which files. All three have preference settings which will allow you to make that program the default player for your chosen formats. However, each also handles a couple of proprietary formats which the others do not, so it’s good to have all three. Besides playing audio and video, the latest versions of Windows Media Player (http://windowsmedia.com/) can help you make audio CDs or import music from CDs to your hard drive. Be aware that if you rip music from your CD collection to certain Windows Media formats, those files might not be playable on other computers. WMP plays files ending in the suffixes .wmv and .wma, among others. Quicktime (http://www.apple.com/quicktime/) and iTunes (http://www.apple.com/itunes/) together handle audio and video playing, as well as advanced functions of CD-burning and music-importing. iTunes also offers the ability to share song lists over your local network—even between Macs and PCs—to convert music to MP3s, and to interface with an iPod. Quicktime plays files ending in the suffix .mov, among others. RealOne (http://www.real.com/) is the latest version of RealPlayer, which plays its own proprietary streaming formats, as well as many of the standard formats. It comes in free and pay versions, although you may have to dig for the free version. RealOne plays files ending with the suffixes .rm and .ram, among others.
Conference papers on the topic "Convert video files to mp4"
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Xiang, Ziyue, Amit Kumar Singh Yadav, Paolo Bestagini, Stefano Tubaro, and Edward J. Delp. "MTN: Forensic Analysis of MP4 Video Files Using Graph Neural Networks." In 2023 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW). IEEE, 2023. http://dx.doi.org/10.1109/cvprw59228.2023.00103.
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Chen, Jianping, Dajun Wu, Hai Gao, and Jo Yew Tham. "A novel scheme of generating streamable MP4 files for scalable video coding." In 2009 First Asian Himalayas International Conference on Internet (AH-ICI). IEEE, 2009. http://dx.doi.org/10.1109/ahici.2009.5340292.
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Akharas, Ismail, Michael P. Hennessey, and Eric J. Tornoe. "Simulation and Visualization of Dynamic Systems in Virtual Reality Using SolidWorks, MATLAB/Simulink, and Unity." In ASME 2020 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/imece2020-23485.
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Abstract This paper introduces a novel method for playing dynamic animations of rigid body assemblies with internal motions in virtual reality (VR). Through previous research over a decade ago, an inexpensive, relatively straight-forward process has been developed that entailed using SolidWorks, MATLAB/Simulink, and movie player software to permit one to view 2D MP4 files, such as on a laptop, smart phone, etc. Inspired by the usefulness of these previous results, the approach presented here targets a VR environment, clearly representing a technological leap over viewing 2D MP4 files. It’s made possible by recent advances in VR & gaming software (e.g. Unity) along with some unique software interfacing, including use of CADLink, to permit importation of CAD files, such as from SolidWorks, into Unity. Those interested in VR visualization of their dynamic system can use the step-by-step process presented as a manual to guide them through the hardware and software setup and ultimately learn how to use SolidWorks, MATLAB/Simulink, and Unity interactively to visualize their simulations in VR. Another key point is that the analyst has considerable control and access over each step in the process, including the dynamic modeling, unlike that commonly found in large, structured dynamic simulation software packages. As an example to illustrate the process, a dynamic simulation of a classic pendulum/slider system was created using MATLAB/Simulink, which in effect numerically solves the ordinary differential equations of motion. The time-dependent displacement data for both the slider’s lateral movement and the pendulum’s angle, along with a time vector in incremental difference form, was saved as an Excel file. In turn, it was read by a C# script residing within Unity to permit an animation playback scenario of the SolidWorks CAD model of the entire pendulum/slider system (previously brought into Unity via CADLink with some reassembly), viewed more generally as an assembly with internal motions. Unity, a popular open-source piece of VR game development software used to produce both 2D and 3D video games and simulations, then serves as a platform to access the virtual world with the aid of an Oculus Rift (or Quest) VR headset and two hand controllers. In the end, the VR viewer can physically move around in the VR environment while at the same time view the playback motion of the pendulum/slider system from varying vantage points, just as one would expect in the real world. This work significantly advances the typical visualization experience with respect to dynamic system simulation & animation in addition to being widely applicable to generic mechanical assemblies.