A couple of things: You need to set the video bitrate. I have never used minrate and maxrate so I don’t know how exactly they work, but by setting the bitrate using the -b switch, I am able to get high quality video. You need to come up with a bitrate that offers a good … Read more
Overview of inputs input_0.mp4 has the desired video stream and input_1.mp4 has the desired audio stream: In ffmpeg the streams look like this: $ ffmpeg -i input_0.mp4 -i input_1.mp4 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from ‘input_0.mp4’: Duration: 00:01:48.50, start: 0.000000, bitrate: 4144 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280×720, 4014 kb/s, SAR 115:87 … Read more
It seems to me like you could just check for !stream.paused.
With a newer OpenCV version (I use 3.1.0) it works like this: import cv2 cap = cv2.VideoCapture(“video.mp4”) length = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) print( length ) And similar for other video properties cv2.CAP_PROP_*
Like this: <video width=”300″ height=”200″ autoplay=”autoplay”> <source src=”https://stackoverflow.com/questions/14161516/video/supercoolvideo.mp4″ type=”video/mp4″ /> </video> controls is a boolean attribute: Note: The values “true” and “false” are not allowed on boolean attributes. To represent a false value, the attribute has to be omitted altogether.
Drawbacks of using TCP for live video: As you mentioned, TCP buffers the unacknowledged segments for every client. In some cases this is undesirable, such as TCP streaming for very popular live events: your list of simultaneous clients (and buffering requirements) are large in this case. Pre-recorded video-casts typically don’t have as much of a … Read more
Here is an idea to select frames. Suppose the fps of source video is F and target fps is TF. rate = TF/F Initiate a variable n equal to -rate and add rate each time, when the integer part of n changed, select the frame. e.g. rate = 0.3 n: -0.3 0 0.3 0.6 0.9 … Read more
The Accept Ranges header (the bit in writeHead()) is required for the HTML5 video controls to work. I think instead of just blindly send the full file, you should first check the Accept Ranges header in the REQUEST, then read in and send just that bit. fs.createReadStream support start, and end option for that. So … Read more
Imagine if there was no img tag. If you want images, you have to use a 3rd party plugin, that is really slow and has no standard way to embed it in a page. You can’t easily copy images in this way, and search engines basically have no clue what if it’s an image or … Read more
If you do not need the recording and playback functionality in your app, using off-the-shelf streaming app and player is a reasonable choice. If you do need them to be in your app, however, you will have to look into MediaRecorder API (for the server/camera app) and MediaPlayer (for client/player app). Quick sample code for … Read more