video

问题 I need to pass http headers (user agent and ip) to an ffmpeg command. I use the following command: ffmpeg -y -timeout 5000000 -map 0:0 -an -sn -f md5 - -headers "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36" -headers "X-Forwarded-For: 13.14.15.66" -i "http://127.0.0.1" And I run a local node.js server to see the headers I get: 'use strict'; var express = require('express'); var server = express(); server.all('/*',

问题 I've just started getting into android/Glass development and I was trying to add basic video recording functionality. Currently Glass limits you to 10 seconds unless you tap/press button again and I wanted to bypass this and just have an open ended video recorder. I followed both the Camera API walk-through: And referenced another project: So far my code looks like this: private void startRecording() { try{ camera = Camera.open(); mediaRecorder = new MediaRecorder(); surfaceView = new

问题 I am trying to find out if a video file is corrupted or not. I am using FFmpeg to transcode a video file. However, when it gets to a file that not playable and is damaged, it stops running. I want to know if there is a way to output the FFmpeg command into a text file and then be able to tell which file is corrupted from the text file. When I run FFmpeg on one of the corrupted vide, I find this information. built with gcc 9.1.1 (GCC) 20190807 configuration: --enable-gpl --enable-version3 -

问题 I need to design a app.That when Record the Video through Camera,Show and Record the SystemTimeStamp above the Video. Can it work with current Android Frameworks? If can, How can i do this? Thanks for anybody to read this! 回答1: Follow the procedure below. 1. Capture video byte array (of each frame). 2. Now create bitmap from byte array. 3. Use link below to overlay text over bitmap. 4. Save those bitmaps to create video. Text Overlay bitmap. 回答2: You could follow a two-stage approach. First,

问题 I need to design a app.That when Record the Video through Camera,Show and Record the SystemTimeStamp above the Video. Can it work with current Android Frameworks? If can, How can i do this? Thanks for anybody to read this! 回答1: Follow the procedure below. 1. Capture video byte array (of each frame). 2. Now create bitmap from byte array. 3. Use link below to overlay text over bitmap. 4. Save those bitmaps to create video. Text Overlay bitmap. 回答2: You could follow a two-stage approach. First,

问题 I need to design a app.That when Record the Video through Camera,Show and Record the SystemTimeStamp above the Video. Can it work with current Android Frameworks? If can, How can i do this? Thanks for anybody to read this! 回答1: Follow the procedure below. 1. Capture video byte array (of each frame). 2. Now create bitmap from byte array. 3. Use link below to overlay text over bitmap. 4. Save those bitmaps to create video. Text Overlay bitmap. 回答2: You could follow a two-stage approach. First,

问题 I take a picture from the camera preview and then save the obtained byte array into a jpeg file. Now I want to save/encode that image file(jpeg) as a video file (mp4) of 2 seconds duration. I know about MediaMuxer in Android 4.3 and I tried with the examples from https://android.googlesource.com/platform/cts/+/jb-mr2-release/tests/tests/media/src/android/media/cts/EncodeDecodeTest.java, but with no success i.e I get a blank video mp4 file. I transformed an image to mp4 video with ffmpeg

问题 I am trying to use a script on three videos using the same ID (#vid) on the same page. At the moment only one video seems to be able to use the script. var video = document.getElementById('vid') // When the 'ended' event fires video.addEventListener('ended', function(){ // Reset the video to video.currentTime = 0; // And play again video.load(); }); 回答1: Most of these answers are only partially correct. For your markup to be valid, id's need to be be unique . However, sometimes careless

问题 I am trying to use a script on three videos using the same ID (#vid) on the same page. At the moment only one video seems to be able to use the script. var video = document.getElementById('vid') // When the 'ended' event fires video.addEventListener('ended', function(){ // Reset the video to video.currentTime = 0; // And play again video.load(); }); 回答1: Most of these answers are only partially correct. For your markup to be valid, id's need to be be unique . However, sometimes careless

问题 I am using ffmpeg to produce a video starting from a set of png images. However, the images I have are numbered like this: image_D5_C0_F4.png image_D10_C0_F4.png image_D15_C0_F4.png image_D20_C0_F4.png and so on. Basically, everything remains the same, but the inner part changes. My ffmpeg command looks like this: ffmpeg -framerate 8 -start_number 5 -i img/image_%02d_C0_F4.png -c:v libx264 -r 30 -s 1200x900 -pix_fmt yuv420p out.mp4 but obviously it does not work. I looked into the manual to