video

问题 I am building an iOS app using the AVFoundation Framework, objective-C and Xcode 7.1. What i am doing is get a recorded video, add a text layer and export. My problem is that the exported video is on landscape when i recorded on portrait! I 've been struggled for hours and can't solve it. I found similar questions but none of the answers helped me. Here is my code: AVURLAsset* videoAsset = [[AVURLAsset alloc]initWithURL:self.videoURL options:nil]; AVMutableComposition* mixComposition =

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I am working to design a system which does the following: User uploads a video, JS code finds the length of the video. Performs HTTP calls to an already-existing service to retrieve an audio track of the same length. Synchronize and combine the audio and video

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I am working to design a system which does the following: User uploads a video, JS code finds the length of the video. Performs HTTP calls to an already-existing service to retrieve an audio track of the same length. Synchronize and combine the audio and video

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I am working to design a system which does the following: User uploads a video, JS code finds the length of the video. Performs HTTP calls to an already-existing service to retrieve an audio track of the same length. Synchronize and combine the audio and video

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I am working to design a system which does the following: User uploads a video, JS code finds the length of the video. Performs HTTP calls to an already-existing service to retrieve an audio track of the same length. Synchronize and combine the audio and video

问题 #include "D3D9.h" #include <Wincodec.h> #include <chrono> #include <shellapi.h> #include <d3d11.h> #include <dxgi1_2.h> #include <Atlbase.h> #include <comdef.h> #include <windows.h> #include <shlobj.h> #include <shellapi.h> #include <dxgi1_2.h> #include <d3d11.h> #include <memory> #include <algorithm> #include <string> #include <iostream> #pragma comment(lib, "D3D11.lib") #pragma comment(lib, "D3d9.lib") #pragma comment(lib, "dxgi.lib") #pragma comment(lib, "gdi32.lib") //using namespace

问题 Good afternoon. I apologize in advance for my bad code, because I have not yet brought it into a good form. The bottom line is to take pixels from the desktop at 60 fps, but mine runs at 10 fps and also uses too much memory. Please help me understand where I was wrong, thanks. I had an assumption that I was not resetting something, but I think have taken this into account by calling SAFE_RELEASE. To get the pixels, I used this code: How to access pixels data from ID3D11Texture2D? #include

问题 Good afternoon. I apologize in advance for my bad code, because I have not yet brought it into a good form. The bottom line is to take pixels from the desktop at 60 fps, but mine runs at 10 fps and also uses too much memory. Please help me understand where I was wrong, thanks. I had an assumption that I was not resetting something, but I think have taken this into account by calling SAFE_RELEASE. To get the pixels, I used this code: How to access pixels data from ID3D11Texture2D? #include

问题 How can I get a MP4's codec information in JavaScript so that I can check if the browser supports it? const audioCodec = '';//<---?? exmaple: "mp4a.40.2" const videoCodec = '';//<---?? example: "avc1.42e01e" const video = document.getElementById('video'); const mimeCodec = 'video/mp4; codecs="' + audioCodec + ', ' + videoCodec + '"'; if (!('MediaSource' in window) || !MediaSource.isTypeSupported(mimeCodec)) { console.error('Unsupported MIME type or codec: ', mimeCodec); } 回答1: There is no

问题 How can I get a MP4's codec information in JavaScript so that I can check if the browser supports it? const audioCodec = '';//<---?? exmaple: "mp4a.40.2" const videoCodec = '';//<---?? example: "avc1.42e01e" const video = document.getElementById('video'); const mimeCodec = 'video/mp4; codecs="' + audioCodec + ', ' + videoCodec + '"'; if (!('MediaSource' in window) || !MediaSource.isTypeSupported(mimeCodec)) { console.error('Unsupported MIME type or codec: ', mimeCodec); } 回答1: There is no