mp4 Questions

3

Solved

So I know of opencv and pymovie however I cant seem to find a working example on here or anywhere on google or this site. I do not want to convert the mp4 into anything else. It has to be mp4 file ...
Leff asked 14/4, 2016 at 22:2

1

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As described in this question I'm trying to create a custom audio codec and save it with the Sink Writer in a MP4 file. I succeeded with the aid of setting MF_MT_MPEG4_SAMPLE_DESCRIPTION, following...
Occidental asked 9/8 at 18:15

1

Note: If you end up here, you might want to take a look at shaka-player and the accompanying shaka-streamer. Use it. Don't implement this yourself unless you really have to. I am trying for quite...
Doris asked 19/10, 2020 at 18:47

4

How do I make an mp4 video from a set of png images with the module imageio? I've tried this: import imageio import glob writer = imageio.get_writer('test.mp4', fps=20) for png_path in glob.glob('...
Craig asked 12/12, 2017 at 14:32

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I'm trying to add a MP4 video to my media library. It doesn't give any error but when I try to play the video it gives this message inside the video player: Media error: Format(s) not supported or...
Lessee asked 8/3, 2018 at 12:49

6

fourcc = cv2.cv.CV_FOURCC(*'XVID') The above line is used for avi video. In the same fashion, which codec do we use for mp4 videos in Ubuntu?
Tracery asked 7/5, 2015 at 13:49

3

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I recorded a Full HD video with Samsung Galaxy II, when I uploaded it to YouTube I found that it turned to 90 degrees like Portrait layout 1080x1920 NOT 1920x1080. I found the cause of the problem:...
Brno asked 11/8, 2011 at 11:39

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I have some MP4 videos that don't have Media Created date and time because they were recorded with Instagram camera. I want to set the date and time and I found out that I can do that with Exiftool...
Outbid asked 25/12, 2018 at 22:46

14

We have an MP4 video on our site; it plays fine in IE9+, Firefox, Chrome, and Chrome on mac. However, on Safari, the video doesn't play at all - it does trigger a "stalled" event and then nothing l...
Cuckoopint asked 30/12, 2014 at 21:24

3

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I use the following code to convert .webm videos to .mp4 using the FFMPEG library: ffmpeg -i video.webm -vcodec h264 -acodec aac -strict experimental video.mp4 This works flawless when playing t...
Tosch asked 23/1, 2019 at 20:26

8

I have a video.mp4 in content/video.mp4 if I wanted to play the video in google colab without downloading , ¿what code I should use to open a kind of video player in my jupyter notebook?
Rosanarosane asked 6/8, 2019 at 13:27

3

I'm using MediaCodec in my project to encode videos from camera. For some reasons i need to set KEY_I_FRAME_INTERVAL to 0, which means that every frame in recorded mp4 video will be a key frame (ke...
Reamy asked 1/2, 2016 at 15:29

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I'm creating a fragmented mp4 for html5 streaming, using the following command: -i rtsp://172.20.28.52:554/h264 -vcodec copy -an -f mp4 -reset_timestamps 1 -movflags empty_moov+default_base_moof+f...
Algor asked 16/6, 2015 at 13:23

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I'm trying to concatenate two mp4 files using ffmpeg. I need this to be an automatic process hence why I chose ffmpeg. I'm converting the two files into .ts files and then concatenating them ...
Shrovetide asked 7/9, 2011 at 11:40

6

I have embedded HTML5 video with mp4 format. How to get thumbnail image like poster without using "poster" attribute. This problem coming on Safari and iOS. I have added video like below mentioned ...
Beore asked 21/12, 2016 at 5:36

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Every tutorial/explanation I see out there that discusses HTML5 video format fallbacks use this type of markup as an example: <video autoplay> <source src="/myvideo.mp4" type="video/mp4...
Amorphism asked 5/1, 2015 at 18:43

2

We run a video service streaming movies to smartphones (iOS&Android). We are encoding in H.264+AAC and using the mp4 container. We have a problem that long movies (60 minutes+) take a very long...
Radio asked 27/9, 2012 at 8:26

0

This is the file: https://t44-post-cover.s3.eu-central-1.amazonaws.com/2e3s.mp4 When I download and try share, it fails. Why? This is the parameters was rendered. Downloading and sharing works from...
Brunet asked 8/1, 2023 at 12:14

1

Recently installed Ubuntu 22.04 on a DELL x86 64 bit laptop, and when I imported my mp4 files for whatever reason the built in video player can't play the mp4 files. Either tells me the codec can't...
Krystlekrystyna asked 17/11, 2022 at 16:23

2

I am trying to measure some event in an input video file: "test.mp4". This is done by processing the video in several steps, where each step performs some operations on the video data and writes th...
Etherize asked 4/4, 2018 at 14:46

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This is my video This is the script to find fps: import cv2 if __name__ == '__main__' : video = cv2.VideoCapture("test.mp4"); # Find OpenCV version (major_ver, minor_ver, subminor_ver) = (...
Soak asked 28/2, 2018 at 9:13

3

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I would like to use magnifico-popup to display a locally hosted mp4 file. Do I need to define an iframe pattern for this or is there a simpler option. Many thanks for your thoughts Anita
Enormous asked 8/1, 2014 at 4:55

2

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Media Source Extension (MSE) needs fragmented mp4 for playback in the browser.
Sylvie asked 3/2, 2016 at 12:59

5

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I'm trying hard to get the modification date from a MP4 file hosted on my server. I tried the following library: ffmpeg -i video.mp4 Without any luck. All I get is duration and a few other fiel...
Seavir asked 21/7, 2015 at 14:9

2

Is it possible to store a pcm audio file into .mp4 file? I used ffmpeg command "ffmpeg -i tempA.wav -acodec copy temp.mp4" but unable to store it in mp4 container file. Input #0, wav, from 'tem...
Bottommost asked 15/7, 2013 at 10:23

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