Recent questions tagged video

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I am able to upload png/jpegs/images using PHP upload script but am not able to upload mp4 files on ... still same error video/mp4Invalid file See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - ffmpeg: reduce fps if over threshold but do not increase if under threshold

The ffmpeg CLI allows your to specify -r <fps> or -vf fps=<fps> to set a fixed FPS for your output. The ... it wasn't needed for my use-case. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Youtube integration in iOS SDK

How I can integrate Youtube with iOS? Mainly I want to play private videos without asking for login. Login ... before playing the private video. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - FFmpeg move overlay from one pixel coordinate to another

I'm trying to write a command within FFmpeg that will first overlay one video stream on top of another one. ... at 1000x100. Is this possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - youtube api v3.0 Browser-based Uploading in php

i'm trying (php) to upload a video (browser based not storing video in my app want to upload straight to youtube). ... (array("tag1", "tag2")); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - FFmpeg concatenation, no Audio in Final Output

I have the following command working in ffmpeg, which adds 1 second of a black frame to the beginning of ... map "[out]" finaloutputvideo.mp4 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Embed instagram/youtube into Shiny R app

I would like to play an instagram or Youtube video upon a click of a graph (e.g. showing what an outlier ... GoogleGroups answer but got no joy. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - How to batch convert mp4 files to ogg with ffmpeg using a bash command or Ruby

I am running a OSX, don't know tons about video conversions. But I have like 200 videos that are all in mp4 ... convert this from linux to osx. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Muted Autoplay in Chrome still not working

I am having trouble getting chrome to autoplay a video. I have set the video to muted and it auto plays in both ... not the result I'm getting. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Can anyone help in understanding AVFrame.linesize[]?

I tried to find what each cell of AVFrame.linesize[] means, but I didn't found. As I understood linesize[0] is ... of the row, am I correct? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - How to include FFMPEG functions in android code

My aim is to build a video file by combining an audio clip and an image for android. Using cygwin, I was able ... how this should be done..... See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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964 views

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video - ffmpeg splitting RGB and Alpha channels using filter

I'm trying to use ffmpeg to split an input file into two separate files: An MP4 with only R,G and B ... to alpha.mp3? Thanks in advance! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video streaming - Recording IP Camera stream with FFMPEG

Hey I am trying to record the IP camera stream using FFMPEG . But it is giving me Input/Output error . Here ... Any Help would be appreciated . See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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744 views

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video - FFMPEG: Get the Scene Change Detection value for all frame

I'm trying to measure how much a movies is "fast" (more action in the screen and quick scene chances). I don ... I can make it return the value? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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704 views

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video capture - OpenCV VideoWriter won't write anything, although cvWriteToAVI does

I'm been trying to capture video from a cam and write it into an AVI file. I'm using Qt 4.8.2 with MSVC ... have any idea on what's going on? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - OpenCV Seek Function/Rewind

I've been trying to find/implement a seek and rewind function (for video (.avi)) using OpenCV in C++, ... appreciated; Thanks ahead of time! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Change ffmpeg input on the fly

I want to show videos non-stop without knowing beforehand which videofile would go next on a Linux host. This ... me into the right direction. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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video streaming - Live555 on Android

I'm trying to get the RTSP video stream play in my Android App using the build-in Videoview/MediaPlayer, but ... I do that myself? Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Flutter - video_player fullscreen

I'm using a plugin called video_player on my Flutter project. I'm able to play and pause videos without a ... ; Can I make it fullscreen? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - ffmpeg set subtitles track as default

By adding an .ass subtitles track to an mkv video with ffmpeg, it isn't set as default track, so on ... to do this directly with ffmpeg? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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559 views

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video - Using both cameras on android: "Fail to connect to camera service"

I'm having troubles in accessing both (front and rear cameras at the same time). When turn on one camera it ... - I'm using HTC Sensation. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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865 views

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video - How to use GPU to accelerate the processing speed of ffmpeg filter?

According to NVIDIA's developer website, you can use GPU to speed up the rendering of the ffmpeg filter. Create high- ... t 5 -crf 28 dog.mp4 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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846 views

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video - Howto merge two avi files using ffmpeg?

I'm unable to merge two avi videos together. google is full of below examples: cat file1.avi file2.avi file3.avi ... is converted and that's it. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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video - Read Frames from RTSP Stream in Python

I have recently set up a Raspberry Pi camera and am streaming the frames over RTSP. While it may not be ... can I use to accomplish this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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638 views

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video - How do I embed a mp4 movie into my html?

I have a blog section on my site that has the TinyMce editor. I want to embed a video when I post a blog and ... > </object> What am I missing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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718 views

1 answer

video - Live stream RTMP/RTSP player without using webview (WOWZA server) on Android

I am developing an Android application in which I want to publish as well as stream a video... What I want is: My ... . How do I fix this issue? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

1 answer

video - FFmpeg c++ H264 decoding error

I have a program which capture video from webcam, encode with ffmpeg, encoded packet then write to buffer. At the ... exit_v4l2(); return 0; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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619 views

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video - To refresh imshow in Matlab?

I want to convert this answer's code to imshow. It creates a movie in MOVIE2AVI by %# preallocate nFrames ... you store the animation correctly? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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