Video 2 Photo

介绍

Video 2 Photo提供了一种快速、有趣和原始的方式从视频（和Live Photos）导出一张或多张照片。
为什么这样做？

有时你可能犹豫是拍照还是录像。最后决定录像！幸亏有了了Video 2 Photo，现在可从视频抽取出许多图片来！
在想拍照时无意中录了像。使用Video 2 Photo，可最终从此视频恢复照片。
拍摄好的移动物体、动物或人的照片几乎不可能。使用Video 2 Photo可实现。
拍摄一张自己的照片总是很困难。使用Video 2 Photo，你可选择一张最适合你的好图片。
您需要一个精确的工具来导出多个连续照片并将其与其他应用程序一起使用。
从你最喜欢的视频中选择一张代表性图片作为墙纸或打印出来随身收藏。
一帧一帧地观看你的收藏影片有趣极了，可发现从未见到的小细节。

视频可从i设备的相机胶卷导入。
还可将你的i设备连接到iTunes以拖放其他视频（使用iTunes文件共享功能）。
可直接使用相机录像以在之后快速抽取图片。

动态和原始的界面使你可从视频中所含的全部图片中选择图片。
还可观看视频（可全屏）并直接选中某个特定时间。

在选择图片后，将可查看它（可全屏），可裁剪它（保留最有趣的部分）并使用各种方式导出:

保存在i设备的相机胶卷中
通过电子邮件发送
通过iTunes文件共享检索
复制(粘贴到其他应用程序中)
打印
甚至可作为推文发送！

您将看到原始直观的用户界面，与我们所有的视频应用程序相同。
这些应用程序已多次被苹果和其他各网站收录。

此应用程序可以运行，在你的iPhone和iPad上，作为一个独立的应用程序，或作为行动扩展（从像照片应用程序的兼容的应用程序）。
支持横向和纵向显示。

您不喜欢这个应用程序的外观，正在寻找一个更精简、更适合您设备现代外观的应用程序？
看看我们的 PureClip Photo 应用程序--它应该就是你想要的！

视频


(v4.0 on iPad)		(v4.0 on iPhone 6)

iPhone截图

iPad截图

常问问题

Q : Can you explain how to use the application?

Here are the basic steps :

In this screen, You can swipe left/right to switch from the camera roll of your device, the recent videos, the Favorites, the Live Photos and the iTunes File Sharing content. (videos that you can add in the Video 2 Photo folder using iTunes of the Files app from Apple).
Swipe up/down to view more videos.
Touch the video you want to extract pictures from.

Tip: You can also directly record a new video, or import a specific one, by using the top right import button.
Tip: Video 2 photo can also be launched from the Photo app (or another app sharing videos), as a share extension.
Tip: The previously selected vedeo is highlighted in blue.

Swipe up/down to view the images in the video, one by one. Move the slider at the bottom to have a quicker scroll.
Press the arrows, at the bottom, to show the next or previous frame.
Press the top right full screen button to enter full screen mode where you can focus on a specific part of the image and show the next or previous frame.
You can press the bottom play button to play/stop the video. (while playing, touch the video to view it full screen).
When the video is not playing, touch the image you want to export.

Tip: While using the bottom movie scrubber, you can slide your finger from the bottom to the top for higher precision.
Tip: Pinch out or long press on a specific frame to view it in full screen.
Tip: Long press the arrows, at the bottom, to advance or rewind the video frames by frames.
Tip: While the video is playing, use the arrows to fast rewind or fast forward.

You can export the image from here, selecting the desired button.
Generally, you will want to export it to the camera roll (where all your videos and images are stored in the device).
Touch (or pinch) the image to view it in full screen.
Before exporting you can press the top right icon to crop the image.
The "Export multiple photos" button is quite special. it will display a dedicated screen with ehanced features.

Tip: More infos on iTunes File Sharing which is also assessible by using the files app from Apple.
Tip: Touch the text at the bottom of the list, to directly access to the Video 2 Photo part of the Settings application (ans select the metadatas to be added in the exported images, and to some other options).

To crop the image, drag the red bars to the desired size and press Done.

Tip: Press the Constrain button to set a ratio constraint or to cancel your current crop.

From this screen (accessible from the export screen) you can export multiple consecutive photos.
Select the options you want, and press the export button.
A safety check is performed to ensure that you don't export images if there is not enough disk space on your device.

In all screens, pressing the top left button will go to the previous screen.
You can rotate your device, if you want. Some videos are more adapted to a landscape orientations.
Tip: The application can be used to open video file in every application that supports the Open-in feature, or the Action extension (like the Photo app).

Q : Are there some settings in the application.
I'd like, for instance, to change the exported images from .png to .jpeg files.
Yes, you can go to the Settings application -> "Video 2 Photo" section. From here you'll be able to customize some feature of Video 2 Photo.
Q : The app is taking a lot of disk space. Is there a cache cleaning function?
The app does not really cache any data.
There are only 2 cases where some video data will be stored in the application (making it use some space on the device) :
1. Instead of opening an existing video that is stored in the Photo app of the device (Photo or Camera roll folder), the user imports a new video :
  - by using the internal recording screen of the app.
  - by opening a video from another application into the app (using the Open-in iOS feature).
  To avoid loosing this input video, it is saved temporarily in the document folder of the app.
  This temporary video will be automatically erased as soon as another video will be opened in the app.
  
  So if you have recorded a very big video, and you need some disk space as soon as possible, just open another existing video, when you have done with the recorded video.
2. The iTunes File Sharing folder has been used by the user :
  - to import a video from his computer.
  - to export a video to his computer.
  - to store some videos using the Files app.
  Once the video is not needed anymore, it is up to the user to delete it manually (using another time his computer, or using the Files app from apple).
  
  In case the iTunes File Sharing folder was used unintentionally, and the user wants to remove the files contained in it, without using his computer, he can, as a workaround, un-install and re-install the app.
  This will have the effect to reset the app content (including the iTunes File sharing folder).
For information, the temporary video mentioned in the 1^st part is stored in the same document folder which is accessible through iTunes File Sharing.
Note: This folder will be backed up by iCloud, if this option is activated in the iCloud general settings.
Q : The videos in my Camera Roll are not accessible. How to solve that problem?
You must go to the Settings application -> "Privacy" -> "Photos", and set the app (Video 2 Photo) to ON.
Q : The videos imported from my computer are not visible. How to solve that problem?
The videos you have imported are most probably located in the Video app of your device (and taken from the Movies folder in iTunes).
Unfortunately, Video 2 Photo (and every other app from the Appstore) cannot access those videos in the Video application yet.

The only videos accessible are the ones in the Photo application (the Camera Roll)
They are the ones recorded with your camera, but you can also import videos to this Camera Roll from your computer using iTunes, the same way you would import your photos.

Video 2 Photo, also supports the iTunes Files Sharing feature, so you can manually add some external videos to Video 2 Photo quite easily.
Here is how to copy your videos to the Video 2 Photo folder in iTunes : http://support.apple.com/kb/HT4094
The suggested file format of the videos is Apple QuickTime .mov. Other file formats like .mp4 or .avi files are also supported but might raise some compatibilities issues.
Q : How can I delete videos that have been loaded?
- In case the video to be deleted is located in your Camera Roll, go to the Photo application and you'll be able so see all your videos (and photos).
  Once the video is selected, use the dedicated button to delete it.
- In case the video to be deleted is located in the iTunes File Sharing folder, here is how to access and delete it : http://support.apple.com/kb/HT4094. The Files app from apple can also be used for that purpose.
Q : What video formats can be read?
The video decoder used in the app is the one provided by Apple.
It is able to support all the video formats that are handled by the device itself.
It might depend on the model and iOS version you are using.

For instance, on iPhone5S (with iOS7) here are the supported formats :
- H.264 video up to 1080p, 60 frames per second, High Profile level 4.2 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
- MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
- Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
(source : http://www.apple.com/iphone-5s/specs/)