3D VR動画ファイルでは、撮影方法などによって、マッピングフォーマットに違いがあるものが存在し、大きく分けて360度と180度のものがあります。その他の角度のものも存在しますがマイナーであるので特にサポートしていません。また180度のものでは魚眼レンズを使ったFishEye形式のものがあります。Channel Playerでは、それらの対応に加えて2Dの動画ファイルの方が世の中全然多いので、2Dの動画ファイル再生に対応しています。
またステレオのパッキング方法にも違いがあり、左右の目に対する映像をSide by Sideと言う左右に分かれているものと、Top BottomあるいはUp Downと言った上下に分かれているものが存在します。
それらが動画ファイルの中にパラメーターとして保存されていれば良いのですが、パッキング方法ぐらいしか保存されておらず、Channel Playerでも使っているAVPro Video Assetでパッキングの自動判定機能があるので、Autoのモードにすれば自動判別しますが、マッピングフォーマットについては手動で合わせるしかないのが現状です。
UI design concept of video title selection screen (SciFi theater scene)
When you start Channel Player and complete the first folder setting, it will search all folders under the set folder position, create a list of video titles, and display only one of those folders. .
With normal video playback apps, it’s common to display a file list and select a file to play, but in Channel Player, we decided to handle it by folder. Also, if there are many video titles, it would be normal to have a UI that displays them side by side as much as possible. But with Channel Player, we didn’t do that and just had one. One of the reasons for this is that when you see a lot of things like Amazon Prime and Netflix sites, you get confused, but you end up watching only one. Because I wanted to make it look bigger. Only one amount is displayed at a time, and the screen in front of you is maximized.
Instead, if you tilt the stick up, down, left, or right, a different title will be displayed. Also, if you want to display the titles in order of name or date, instead of clicking somewhere and sorting again, you can sort them first and change the displayed column to display the title of that attribute. I made it Unplayed titles, titles selected as favorites, history display, etc. are handled in the same way.
In fact, if you think about the procedure from selecting a title to starting playback with a normal video playback application, when you select a title, you open the folder here and there, and when you finally find it and open it, play it first this time. It is very troublesome to have to find the title. However, with Channel Player, you don’t have to think about such things at all, and you can start playing right away. Also, the blue diamond mark on the upper right makes it easy to tell whether or not it has been played, so you don’t have to worry about that.
You can also freely enter keywords in alphanumeric characters only when searching. Since the search target is the folder name, we made it possible to extract the keyword from the folder name obtained when searching for the first video title and use it as a search key by clicking the word button.
Regarding the structure of the video and still image storage folders assumed by Channel Player
In order to realize the design concept described above, the cooperation of users is actually necessary, and I would like to introduce the folder structure that Channel Player assumes as a folder structure where video files are saved.
First, let me explain the terms video folder and stills folder. In general, I think that video files and still image files are placed in folders on the file system. In Channel Player, if there is even one video file in that folder, it will be treated as a video folder, the folder name will be displayed as the title of the video, and it will be treated as one content. Also, if the folder contains only still image files, it will be treated as a still image folder and the folder name will be treated as one content.
Specifically, first, assuming the folder structure is as shown below, in this structure, if you select the top folder shown in the upper left in the folder settings, video folder 1, video folder 2, and still image folder will be created. Each will be treated as a title for playback, and only three will be visible.
top folder
video folder 1
video file 1
mp4 file
video file 2
Still image file 1
jpg, png, webp file
video folder 2
video file 1
video file 2
Still image file 1
Still image file 2
still image folder
Still image file 1
Still image file 2
General folder structure
In this example, video folder 2 has two thumbnail still images. Also, in the case of the above still image folder, still image files 1 and 2 stored in the folder are displayed in order each time the title is displayed.
About category folders
Next, let’s talk about category folders.
top folder
category folder 1
video folder 1
video folder 2
video folder 3
category folder 2
video folder 1
video folder 2
zip file
category folders
In this example, under the top folder, there is a category folder with multiple video folders. Also, the video folder contains video files and still image files as explained earlier. Here, for category folders 1 and 2, when moving to the 7th line from the top in the theater scene, the category folder name is displayed in the upper left, and the video folders in it are displayed as belonging to that category. As a title, treat it as it will be displayed.
The above example shows that there is no video folder directly under the top folder, but it is okay if there are video folders and still image folders directly under the top folder as in the first example. In that case, it just doesn’t go into the category folder.
About Comic book
In the above folder structure, the zip file is placed under category folder 2, but not only in this position, the zip file and cbz file found during the search at startup will have the file name as the content title and still It is treated as a comic book (still image title) containing image files.
How to follow video playback format and Setting_Separate.txt file
When playing a video file, the format of the video file (3D format 360 degrees, 180 degrees, 180 degrees FishEye, Side by Side (LR), Up Down (Top Bottom), Mono, 2D format) can be changed each time the video file changes. Choosing the right one can be a real hassle. Channel Player has some automatic recognition functions, but there are many cases where manual settings are required. Channel Player handles files one by one on a folder-by-folder basis so that you can save time and effort. The format of the file to be played follows the format of the file played immediately before.
If there are multiple files in the case of a video title in 3D VR format, they generally have the same format, so by handling them this way, you only need to set the format format once, which is convenient.
Here, if 2D video files are mixed and placed in the same folder, even if the previous format format is followed, even if the 2D video is played back in the 3D VR video format, it will not be displayed correctly, and the 3D VR video will not be displayed correctly. The same is true for , and you are forced to set the format format. Therefore, it is not recommended to put 2D video and 3D video files in the same folder.
Also, in the case of 2D videos, it may be better to rotate them vertically or play them with a different aspect ratio, but if you need different settings for each title, you will have to reconfigure them, which is very troublesome. is. In that case, put a file named Setting_Separate.txt (file size can be any number) in that folder as shown below. When playing 2D video files continuously, the settings for rotation position and aspect ratio will not follow the previous settings and will always return to the default so that they can be set individually. Note that Setting_Separate.txt is valid only when using a folder path. It doesn’t work with WebDAV.
If you change the format while playing a video file, Channel Player remembers the setting, so the next time you play the file, it will play back in the format that was set in the past.
To change the video format, you can use the radial menu on the left side during playback on the player screen, and you can set it from the property screen before playback on the theater scene. See the help documentation (SciFi Theater, Player) for details.
動画ファイルを再生する際、動画ファイルのフォーマット(3D形式 360度、180度、180度FishEye, Side by Side(LR), Up Down(Top Bottom), Mono, 2D形式)を動画ファイルが変わるたびに正しく選択することは大変面倒なことです。Channel Playerでは一部自動認識機能もありますが、手動設定が必要となるケースが多いです。Channel Playerでは、その手間を少しでも省けるようフォルダー単位で一つ一つのファイルを扱うことで、全く未設定の場合でも、同じフォルダーの最初に再生したファイルのフォーマット形式を設定すれば、続いて再生させるファイルのフォーマット形式は、直前に再生したファイルでのフォーマットを踏襲して再生します。
Even if you install and start Channel Player, select a video file and try to play it, you will be confused by the blue screen with letters at the bottom. The screen is shown below. This scene is called the SciFi theater screen or simply the theater screen. The purpose of this column is to set up a folder so that it can start playing.
With a normal VR app, lasers are displayed from the left and right Oculus Touch controllers, and when you pull the trigger, you can click the button currently selected with the laser pointer, but with Channel Player, no laser is displayed at all. , I think I’m at a loss as to how to operate there. (The reason for this UI is to ensure compatibility with controllers that cannot display lasers, such as Xbox game controllers, and to select the displayed buttons with a laser, it is necessary to match the position exactly, which is unexpectedly troublesome. The reason is the area I felt.)
At the bottom, “Folder is Empty. Please Push B Button(A Button at Oculus Touch) and Set Folder Path or WebDAV Address”
First, press the B button on the controller (it will be the A button if you changed the AB,XY exchange). A dialog will appear as shown below. This Dialog have Global Setting written at the top. There are three buttons on the second row from the bottom, but please use the stick to move to the “Set Folder Path” button in the middle, and then pull the trigger on the controller. Then press this button. If you don’t pull the trigger, selecting the button does nothing.
This will open the Folder Settings dialog shown below. Here, the path of the currently selected folder is displayed at the top of the screen. If this location is fine, press the Return button at the bottom right by pulling the trigger on the controller to close this folder setting dialog.
If you want to set a location other than here, there is a button with a folder name and an up arrow on the right side, so if you want to go to the upper folder position, operate the stick until the up arrow button position to change the selected button. If you don’t pull the trigger, selecting the button does nothing. If you want to go under each folder button that is currently displayed instead of the folder above, move the stick to the appropriate button, pull the trigger and press.
When you have reached the desired folder location, go back to the Return button in the lower right and pull the trigger to close this folder settings dialog. By the way, the folder can be closed by pressing the B button on the controller regardless of the currently selected button position (close with the A button when AB, XY is being exchanged).
This will return you to the original settings dialog display as shown below. You can see that the display below the WebDav setting button has changed from “WebDav/Folder Setting is Empty” to the display of the selected folder location. At this point, press the back button at the bottom right of the dialog, or press the B button on the controller (the A button when AB, XY are exchanged) to close this setting dialog and return to the original theater screen. increase.
I returned to the theater screen. I think it looks like the one below. “Folder is Empty. Please Push B Button(A Button at Oculus Touch) and Set Folder Path or WebDAV Address” Become.
If the folder name is not displayed here and you still see the title in the folder, or if the folder is still being read, there are video and still image files in the folder below the selected folder position. indicates that it is bent. In that case, please select another folder.
In this state, if you want to play the video title indicated by the currently displayed folder name, press the A button (or the B button when AB, XY are being exchanged). Plays videos in this folder in order. If you want to select another video title instead, tilt the stick left or right to display a different video title.
If you save a still image file in addition to the video file in each folder where the video title is saved, it will be displayed as a thumbnail and the blue screen will disappear.
On the theater screen, if you move the stick up and down, it will be 1. Name Order, 2. Update Date Order, 3. Favorites, 4. Unplay Title Name Order, 5. Unplay Title Update Order, 6. History, 7. Search.. increase.
If you want to know other operation methods, please refer to the help of the theater screen or the help of the player screen. I would like to write a column that explains other operation methods at a later date.