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1 (1)mp4

MPG is a video format that combines MPEG-1 or MPEG-2 video formats as well as audio formats. Without losing the quality it compresses the VHS-quality raw digital videos. MPG, standardized by Moving Picture Experts Group, supports Mac, Windows or other OS.

1 (1)mp4

MP4, also known as MPEG4 is mainly a video format that is used to store video and audio data. Also it can store images and subtitles. Normally it is used to share videos over internet. MP4 can embed any data over private streams. Streaming information is included in MP4 using a distinct hint.

The McLaren MP4/1 (initially known as the MP4) was a Formula One racing car produced by the McLaren team. It was used during the 1981, 1982 and 1983 seasons. It was the second Formula One car to use a monocoque chassis wholly manufactured from carbon fibre composite, after the Lotus 88 (which never raced), a concept which is now ubiquitous. The MP4/1 was first entered in a Formula One race at the third grand prix of the season in Argentina.

The main engineer for the MP4 was John Barnard, who began drawing the car in late 1979. After a visit to the Rolls-Royce factory where he saw engineers working with carbon fibre technology on the Rolls-Royce RB211 jet engine, Barnard saw the potential of this technology and convinced Ron Dennis to fund the design and build of a whole new car out of this new bodywork material. The chassis itself was built by McLaren using carbon supplied by American firm Hercules Aerospace in Salt Lake City on the advice of McLaren engineer and former Hercules apprentice Steve Nichols, and quickly revolutionised car design in Formula One with new levels of rigidity and driver protection and its Carbon-Fibre-Composite (CFC) construction. Dennis and Barnard took Nichols' advice after being rejected by multiple British firms due to the ambitiousness of this method of chassis construction. Within months and subsequent years carbon fibre started being used by all of McLaren's rivals. The car was far more advanced than any of McLaren's previous cars- including its predecessor, the M29 and M30, and its design and construction was of a far more precise nature than before- just about at the level of fighter aircraft.[4]

In both 1981 and 1982 McLaren International benefited from the exclusive use of a development Nicholson-McLaren Cosworth DFV which powered the MP4. Developed and re-built in John Nicholson's Colnbrook workshops (an agreement with McLaren going back to the mid-1970s) the Nicholson DFV featured bigger pistons and valves that a conventional factory DFV, and thus could rev to around 11,500 RPM, producing around 510 BHP, enabling John Watson and Niki Lauda to all but match the factory Ferrari and Renault V6 twin-turbos in straight line speed during the 1982 season. The Nicholson DFV also used different castings to reduce frictional losses, as well as using MAHLE pistons rather than Cosworth's in house piston/con rods.

Hercules Aerospace keeps John Watson's car which was destroyed in the 1981 Italian Grand Prix and shows it off to visitors after allowing them to view footage of the accident, highlighting how it was possible for him to survive in a carbon fibre car.[5]

John Watson and Andrea de Cesaris drove the MP4/1 for most of the 1981 season with Niki Lauda replacing de Cesaris for the 1982 and 1983 seasons. In 1982, the updated MP4B nearly brought Watson to the World Championship, but he finished third behind Keke Rosberg and Didier Pironi, with 39 points. In the same year, however, it did take second in the Constructors' Championship, collecting 69 points.

During the 1983 season, McLaren worked with Techniques d'Avant Garde and Porsche to develop a turbocharged V6 engine built to John Barnard's specifications and the MP4/1D was the test mule. Later in the season at the Dutch Grand Prix at Zandvoort the Cosworth-powered MP4/1C was replaced by the TAG-powered MP4/1E, which was essentially also a test mule that competed in only 4 races; according to Watson in an interview given in 2009 this was a car that was forced into appearing at the Dutch Grand Prix after political maneuvering by Lauda. He went to Marlboro executive Aleardo Buzzi (the man responsible for giving McLaren their primary sponsorship money), behind the back of the McLaren team and complained extensively to Buzzi about the uncompetitiveness of the team without a turbo engine. Buzzi then withheld money that had been committed to McLaren to develop the TAG/Porsche turbo engine. This infuriated Dennis and designer John Barnard, who had designed the MP4/2 specifically for the new turbo-charged engine, but now had to re-design his MP4/1 to "E" spec for the TAG engine.[citation needed]

The MP4/1E was first driven by Watson, not Lauda, at the Porsche proving ground. It was competitive but the new engine was, thanks to Lauda's political maneuvering, underdeveloped and had teething troubles. This made the car very unreliable, and it did not win any races. However, this car was not really expected to win or even finish races.[6] In total, the MP4/1 brought McLaren 6 wins, 11 other podium finishes and a total of 131 points.

I'm trying to concatenate two mp4 files using ffmpeg. I need this to be an automatic process hence why I chose ffmpeg. I'm converting the two files into .ts files and then concatenating them and then trying to encode that concatenated .ts file. The files are h264 and aac encoded and I'm hoping to keep the quality the same or as close to original as possible.

Note that this method performs a re-encode of all inputs. If you want to avoid the re-encode, you could re-encode just the inputs that don't match so they share the same codec and other parameters, then use the concat demuxer to avoid re-encoding everything.

For .mp4 files (which I obtained from a 50 minute tv episode, downloadable only in three parts, as three .mp4 video files) the following was an effective solution for Windows 7, and does NOT involve re-encoding the files.

The batch file, and ffmpeg.exe, must both be put in the same folder as the .mp4 files to be joined. Then run the batch file. It will typically take less than ten seconds to run..

If what you were looking for is a method for specifying all the mp4 files in the current folder without a lot of retyping, try this in your Windows batch file instead (MUST include the option -safe 0):

Using some python code to do it with as many mp4 there are in a folder (install python from, copy and paste and save this code into a file called and run it from the cmd opened in the folder with python and all the mp4 in the folder will be concatenated) is because "ffmpeg does not support PCM (pcm_alaw, pcm_s16le, etc) in the MP4 container." See here: codec not currently supported in container and here. So, run time ffmpeg -f concat -safe 0 -i inputs.txt -c:v copy -c:a aac output.mp4 instead, to re-encode the audio into AAC format. Or, run time ffmpeg -f concat -safe 0 -i inputs.txt -c copy output.mkv to write into a .mkv container instead of into a .mp4 container.

For those who need to concatenate a number of MP4 videos encoded with H.264, I propose a Python script that automates the Concat protocol/using intermediate files paragraph from the ffmpeg documentation.

Here's my method for joining a directory full of MP4 files using command substitution and the concat video filter (this will re-encode) - figured someone else will get some use out of this one-liner, especially if you have many files (I just joined 17 files in one fell swoop):

If you prefer method #2 from rogerdpack's answer but you don't want to use pipe (e.g. you just want to use execv in C) or don't want to create extra files (list.txt), then just combine concat demuxer with data and file protocols, i.e. FFmpeg allows you to inline input files almost as in HTML:

Is there any way Power BI/Powershell can export .mp4 file-related data from OneDrive for business and SharePoint Online so as to look at the metadata of the Teams Meeting Recording .mp4 files which can be differentiated from non Teams Meeting recording files? Thanks in advance!

For non-Channel meetings, the recording is stored in a folder named Recordings that's at the top level of the OneDrive for Business that belongs to the person who started the meeting recording.

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thanks for your response. There are users who put non Teams meeting recordings in One drive for business and Sharepoint Online under the Recording folder. So how can we differentiate these non Teams meeting recording files from Teams meeting recording ones?

1.Teams meeting recordings' [Sharing] column is automatically displayed as Shared (share with people who joined in this meeting), and (non Teams meeting recordings) .mp4 files are Private by default unless you specify whom to share to.

Stitch together different video clips and images and trim each one as needed. Instantly create standout video content to share on your YouTube channel, TikTok, website, and countless other destinations.

Adobe Express lets you make professional quality edits to your videos for free in seconds. Shoot, edit, and share videos from your device to share across all your channels. Confidently create with the power of Adobe at your fingertips.

will set the width of the output image to 320 pixels and will calculate the height of the output image according to the aspect ratio of the input image. The resulting image will have a dimension of 320207 pixels. 041b061a72


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