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Videos shot with action cameras and drive recorders are sometimes split into 3- or 5-minute segmented files. It is a hassle to use expensive editing software or manually adjust the video just to merge the broken pieces. We'd like to make the process of merging videos much easier! With FFMPEG, you can merge videos with a single command, but if you have many files to merge, it is troublesome to write commands. So, I created a batch file that allows you to merge videos by simply dragging and dropping them. Operation Procedure Drag around the files to be combined. At this time, select from the last video to the first video. Then, drag and drop the files together into ffmpeg-concat.bat to start the batch. When the batch is launched, a list of files to be combined will be displayed, and if all is well, press any key to start combining. Batch download https://quizgenerator.net/wp-content/uploads/bat/ffmpeg-concat.bat Source Code @echo off set FILES= set N=0 REPEAT set /a N=N+1 set FILES=%FILES% -i %1 if "%~2"==""" GOTO EXIT GOTO EXIT GOTO REPEAT EXIT echo %FILES% pause ffmpeg %FILES% -filter_complex "concat=n=%N%:v=1:a=1" %1.merged.mp4 pause Summary. Let's make it easy by drawing a batch!

I want to make a manual video. We would like to add still images to the video and arrange it. I want to add explanatory text to make the video easier to understand. But video editing seems difficult. In such cases, you can easily create a video using iMovie on your iPhone. This time, we will create an instructional video using video and still images. We will use the video below as material for the explanation. Preparation Video for editing Screenshots of the parts of the video that you want the audience to view in more detail How to take a screenshot: 1. While holding down the iPhone sleep/wake button (power button), press the home button. When you hear a "click" sound and the screen blinks white, the picture has been taken successfully. Save the photo. Editing Use iMovie as a free video editing software. 1) Launch iMovie and tap "Create Project". (2) Next, select "Movie". (iii) Check the movie you wish to edit and tap "Create Movie" to insert the movie. (3) Tap the video "by aligning the white vertical line with the area where you want to insert a still image". Then the operation toolbar will appear at the bottom of the screen. Tap the "Split" button. Next, the image will be split and the image will be inserted in the split area. Tap the "+" button on the left side of the screen, and select the image you wish to insert from among the photos. At this point, the preparations are complete. Now it is time to add text to the inserted image. Tap the inserted image and tap "T". A list of text styles will be displayed. In this case, "Standard" will be used. Tap "Standard" and then tap "Enter Title" on the image to enter the text. In the case of "Standard," three large and three small titles are displayed, and you can delete any title you do not need. You can also choose to place the text in the "center" or "bottom" of the screen, so choose your preferred placement. After that, press the "Done" button in the upper left corner of the screen to complete the editing. The following is a video that has actually been edited and edited. There are various other functions that can be combined to create original edits.

I have installed FFmpeg, but there are so many option settings that I don't know how to set them. I know the settings, but it is tedious to encode one file at a time with commands. In such cases, it is convenient to create a batch file like the one below to encode video files by simply dragging and dropping them. *You must use a "Windows PC" to use this batch. You also need to have ffmpeg on your execution path according to the video compression (FFmpeg Setup and Encoding Instructions). You can encode videos by simply dragging them into the .bat file as shown below. You can drag multiple files together. The encoded file name will be automatically set according to the original file name. Batch files for encoding The second and third batch files are excellent for resizing, but depending on the aspect ratio of the original video, the height may be odd and cannot be encoded. Reduce the size without changing the size (↓click to download) https://quizgenerator.net/wp-content/uploads/bat/ffmpeg-noresize.bat Reduce the capacity to the standard quality of learningBOX - width 640 (same as above) https://quizgenerator.net/wp-content/uploads/bat/ffmpeg-640.bat Reduce capacity to learningBOX's high quality video plan - width 1280 (same as above) https://quizgenerator.net/wp-content/uploads/bat/ffmpeg-1280.bat Batch file description The following code is from ffmpeg-1280.bat. -vf scale=1280:-2 * Specifies the size of the image. The width is 1280 and the height is automatic. If -2 is specified, it is adjusted to be a multiple of 2. -crf 22 * Image quality setting. The larger the value, the poorer the image quality (and the smaller the capacity). -r 30 * Specifies the frame rate. The larger the value, the smoother the video (more space is required). -ac 1 * Specifies monaural audio. If you want monaural audio, specify this value to reduce the size. ECHO OFF REPEAT ffmpeg.exe -i %1 -vcodec libx264 -vf scale=1280:-2 -crf 22 -r 30 -y -ac 1 "%~n1.w1280.mp4" if "%~2"=="" GOTO EXIT GOTO EXIT GOTO REPEAT EXIT GOTO REPEAT :EXIT Revision History 2018.1.19 First version released 2018.4.2 Changed height specification from -1 to -2 / changed to -2 because it sometimes caused an error depending on the video size

If you specify the following, you can open the link in Edge! <a href="microsoft-edge:https://quizgenerator.net">Open in Edge</a> Open in Edge If you are running a service that only works in certain browsers, it may be useful to be able to link to a specific browser.    

We had a requirement to display a simple pie chart in one of our projects, but I couldn't find a good library, so I tried to draw it in Canvas. I used only jQuery as an external library. If you specify the color scheme, value and border thickness, a pie chart will be drawn.

There is only one correct answer, but you want to make it a multiple choice question. In such cases, you can force the question to be multiple choice by specifying "ma:" in the question type. Question text ma: o:Correct answer x:Wrong answer 1 x:wrong answer 2 Please view with an Iframe-compatible browser.

The ability to upload videos as educational materials has been available since learningBOX. It has become more convenient, but some people may not know how to make videos in the first place. I can just take a video with my phone and upload it, but I don't want to make a shaky ...... I want to add commentary, but I don't want to show my face or add my voice. I think there are a lot of things to consider. I will show you how to create a video manual in several parts. Eventually, you will be able to create a video like the one below. Editing Use iMovie as a free video editing software, which may be installed by default on your Mac. Launch iMovie and click New. iMovie allows you to create a normal movie and a movie trailer. In this case, we will create a regular movie, so we will select Movie. Creating a trailer is a topic for another time. When you select a movie, it will appear as shown in the image below. iMovie is divided into three main groups. The top left is the material storage area, the top right is the screen effects editing area, and the bottom is the timeline. Drop materials from the upper left storage area to the lower timeline, and cut and paste them to edit your movie. First, register the previously shot video in the storage area. Click on the "Read Media" button and select a file, or drag and drop a video file into the area. In addition to video files, image files can also be registered as materials. Next, drag and drop the files from the "Material Repository" to the timeline below, in chronological order from left to right. You can place any number of files on the timeline. Files on the timeline can be split by pressing command + b. After splitting a file, you can delete it to extract only the parts you want from the file. Between the files, you can insert transitions, which are special effects that occur at the moment a file changes from one to another. This special effect makes it possible to view the video naturally and without discomfort, even if completely different files are following one another. Transitions can be selected by toggling the tabs in the image below. Next Preview In the next issue, we will take video editing one step further.

Images in SVG format are not only not rough when enlarged, but also allow links to be embedded within the image. However, if the image is displayed using the img tag, the link will be disabled; by displaying the image using the object tag, the svg image can be displayed with the link still active. The above svg image was created in Google Slides. The above svg image can be created by outputting the image to svg format with a link specified for the object in the slide.

The ability to upload videos as educational materials has been available since learningBOX. It has become more convenient, but some people may not know how to make videos in the first place. I can just take a video with my phone and upload it, but I don't want to make a shaky ...... I want to add commentary, but I don't want to show my face or add my voice. I think there are a lot of things to consider. I will show you how to create a video manual in several parts. Eventually, you will be able to create a video like the one below. Filming The first part is how to shoot. In this article, we will show you how to take pictures of a screen on a computer. You will use QuickTime Player to take pictures. When you open the QuickTime Player menu, you will see the three recording buttons below. The above three are explained below. New Movie Recording: Record the output video and audio from the device connected to the PC. New Audio Recording・・・Record the output audio from the device connected to the PC. New screen recording: Record the PC screen. The video above is a new screen recording. The video above is recorded from New Screen Recording, so click on New Screen Recording. Then something like the image below will appear. Clicking on the red button in the center of the image will ask you to specify the area to be filmed. If you want to shoot the entire screen, click the button, if you want to shoot a part of the screen, drag to specify the area. When you have finished taking pictures, give a name to the image and save it. This is the end of the shooting process. Next time notice In the next issue, we will edit the video you have shot.

High-Capacity Video Plan earningBOX offers a High-Capacity Video Plan. With the High-Capacity Video Plan, the file size limit per video is relaxed, as well as the total amount of content that can be uploaded. Plans Normal Plan High-Capacity Video Plan Total Capacity 10GB x N 100GB x N Upper limit per video 30MB 500MB Annual fee 30,000 yen × N 90,000 yen × N N is 1 for 100 users and N is 5 for 500 users. Maximum video capacity available for the 100-person regular plan and the high-capacity video plan. Video capacity varies greatly depending on picture quality. For terrestrial digital broadcasting, the maximum speed is about 10-14 Mbps, and for BS digital, the maximum speed is about 24 Mbps; at 24 Mbps, 3 MB per second or 180 MB per minute, which means that the normal plan can only handle up to 10 seconds and the high-capacity video plan can handle less than 3 minutes. On the other hand, one-seg TV broadcasting at 128 kbps (0.128 Mbps) and TV phone calls at 32 kbps (0.03 Mbps) to 64 kbps (0.06 Mbps) are much smaller, and at 64 kbps, one hour of video can be uploaded even with a regular plan. Since video delivery on learningBOX is adjusted to about 200 kbps by the delivery service, uploading too high quality video will only use up storage space and will not be beneficial. You can use the service to the fullest by uploading videos encoded at a bit rate of about 200 kbps, with a screen size of 640*360 and 30 frames per second. However, we do plan to modify the delivery quality upward in the future and have plans to support more efficient encoding, such as H265. We also recommend that you register videos of 1280*720, 30 frames per second, and 1 Mbps, as the same bit rate may result in lower quality depending on the software and encoding you are using. Maximum time limit per video Plan Normal Plan High-Capacity Video Plan 24Mbps 10 seconds 167 sec. Excess quality 4Mbps 1 minute 16 minutes Excess quality 2Mbps 2 minutes 33 minutes Excess quality 1Mbps 4 minutes 67 min Recommendation 500kbps 8 min. 127 minutes Recommendation 200kbps 20 minutes 333 minutes Recommendation 100kbps 40 minutes 666 minutes Low image quality Total video time that can be uploaded to the system Plans Normal Plan High-Capacity Video Plan 24Mbps 56 minutes 556 minutes Excessive quality 4Mbps 5.6 hours 56 hours Excess quality 2Mbps 11 hours 111 hours Excess quality 1Mbps 22 hours 222 hours Recommended 500kbps 44 hours 444 hours Recommended 200kbps 111 hours 111 hours Recommendation 100kbps 222 hours 2222 hours Low image quality