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Questions tagged [video-conversion]

The video-conversion tag covers software & formats related to converting videos from one format or container to the other.

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22 views

How can I reassemble these video fragments?

The below screenshot shows a Chrome Dev Tools view of some headers representing video fragments of a video I'd like to save. I'm hoping someone can identify what type of fragments these are, and any ...
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27 views

How to convert Jpg images to MP4 video using ffmpeg faster without data loss at 480 p

I want to convert JPG images to MP4 video using FFmpeg faster without data loss at 480 p using Python. I'm trying to do it on an AWS EC2 instance. But the time taken is a lot. Also, I noticed that ...
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16 views

Breaking an image into TIFF frames using MATLAB results in compression?

I have a piece of analysis software that requires images in uncompressed TIFF format to work properly; unfortunately, they are in AVI, so I've been breaking them up using MATLAB. vid = VideoReader('...
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1answer
47 views

Make PNG files into a video using FFmpeg

I have extracted all frames from an old video file, cleaned up video tape dropouts and film scratches frame by frame. I now must reassemble the PNG files into a video . I found this thread: https://...
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1answer
22 views

ffmpeg Add audio (wav) to video (mp4) without reencoding video

I was just wondering how to add audio while keeping the pre-existing audio on the video intact: I have done some research and it seems there was a similar question here: Add audio to video using ...
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1answer
57 views

Understanding FFMPEG Error Extracting Subtitles

I'm trying to extract some subtitles as an srt file because there are some lines I'd like to edit therein before remuxing the video. Unfortunately I'm running into an error that I really don't ...
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33 views

FFmpeg HLS single file playback is broken when encryption enabled

HLS files generated with encryption enabled and the single segment (byte range) option result in videos that are unplayable. The same videos play without issue when encryption is not utilized. Here ...
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1answer
15 views

FFmpeg seems to be unable to transmux when remapping streams

I'm trying to reorder a video's streams in the form of video streams first, audio streams and then subtitles. I thought I could also change the format of the video from mkv to more common one like mp4 ...
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114 views

How do I continuously stream multiple .mp4 files with ffmpeg to an rtmp server?

I am an Software Engineering trainee and I need to make a video stream that continuously streams several videos on repeat. I have made an rtmp server using nginx and their rtmp module and as ...
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1answer
20 views

ffmpeg: unexpected behavior during extraction of frames with specified interval

I need to obtain snapshots from a video with 30 seconds interval. It is recommended in the Internet to use the following command: ffmpeg -i <video_file_path> -vf fps=1/30 <directory>/%...
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75 views

-b:v above 9.8M for DVD-Video

Details of Nache1080.mp4:- resolution=1920x1080 fps=60 Avg Video Bit Rate=11610 kbps duration=00:00:14 size=19.6 MB I produced mpeg2 video from this mp4 video using below command: ffmpeg -i ...
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1answer
17 views

Use Automator for handling multiple file inputs through shell Cat command in OS X to combine videos

I'm trying to do a similar thing with video files with no luck. Tried: for f in "$@" do cat "$f" > ~/Desktop/Test.mov done When I do this it just puts the last file selected in the file.
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29 views

How to force ffmpeg to quit when stuck on a frame?

I am using ffmpeg to stream an IP camera to youtube. I believe that due to connection quality to the camera, ffmpeg sometimes gets stuck on the same frame over and over. Like this: frame=148491 fps=...
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43 views

I-frames not marked as key frames in ffmpeg

I've come across some weird piece of MP4 video, where I-Frames are not marked as Key-Frames. This is messing with my video exporting script (seeking is way off and the video doesn't start at the right ...
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2answers
39 views

FFMPEG invocation to output mp4 with video bitrate >15mbps

I am attempting to deliver a 30 second 1920x1080 @ 23.976fps animation video in h264 mp4 to a distributor that has a strict requirement that the video bitrate be greater than 15Mb/s. The animation ...
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18 views

Convert MJPEG-over-HTTP to local playable file

I saved MJPEG HTTP stream with a browser to local file just as it was, with all the --myboundary♪◙Motion-Event: 0♪◙Content-Type: image/jpeg♪◙Content-Length: 25616♪◙Transfer-Encoding: chunked headers....
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48 views

ffmpeg output stream mapping with -filter_complex channelsplit

The goal is to generate mono audio tracks with codec s16_le in the output file, independently of the audio track/channel layout of the input file. All that without dynamically creating the ffmpeg ...
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1answer
12 views

create a video from stills playable on win7 powerpoint

with respect to image size H x W, and to total size of the video file, and what type of video file what is the best method of taking a bunch of still images to a smooth playable video file that will ...
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1answer
97 views

VLC Command line for extracting audio from a video?

I am using VLC for extracting/converting audio from a .mp4 video to a .mp3. The screenshot below shows the menu option I am choosing and then My question is, how do I do this using the command line?...
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1answer
191 views

FFMPEG convert rawvideo pixel format

I have a raw uyvy422 video stream and I'm trying to convert it into a yuv420p stream. I figured that this should be possible, considering that FFMPEG will convert colorspaces for h264 if necessary. $...
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43 views

Combining/Merge existing mp4 file to incoming stream buffer(RTMP)

So What i want to do when i start streaming through OBS studio i want the stream to be attached to my existing mystream.mp4 file. Right now it is overwriting old mystream.mp4 /usr/bin/ffmpeg -y -...
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28 views

Video rendering issue after Windows update

I'm using a GoPro Hero7 Black for making some family and amateur videos, Sometimes I used Quick application for short clips and sometimes I used Davinci Resolve 15 for more complicated things.. ...
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2answers
229 views

Trying to download a youtube video, but getting a weird incomprehensible http error, even via tools

Have been trying this video. https://www.youtube.com/watch?v=mBKKZN1MMBM. Youtube-dl doesn't work. Convert.io and https://www.onlinevideoconverter.com manually also failed. What could have gone wrong ...
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1answer
146 views

FFmpeg: tee muxer fails on multiple outputs HLS and .mp4

I'm trying to encode an input .mp4 for both HLS and re-size into separate .mp4 files using the tee muxer, and HLS's "var_stream_map". When I run the below command with both HLS and .mp4s in the tee ...
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2answers
637 views

How do I convert an MK3D file into an MKV file while preserving the 3D?

I have an MK3D video file containing a 3D movie. But my video player (Skybox for Oculus Quest) does not support MK3D files, only MKV files. My question is, how do I convert my MK3D file into an MKV ...
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88 views

Ffmpeg: Only SUBTITLE_ASS type supported. Subtitle encoding failed

I have a video with MediaInfo: General Unique ID : 194272504823943671508252267080776685075 (0x922786003D50C005A20E0EC561081613) Complete name ...
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75 views

FFmpeg reported framerate changes when stream-copying

I want to run three commands which introduce artificial "stalling" and audio pauses in a video file. They are the following – in this particular case, stalling should be introduced at seconds 0 and 5, ...
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1answer
169 views

HLS conversion issue while using “var_stream_map”

I am using the following command to convert an existing .mp4 video into multiple video and audio formats ffmpeg -y \ -i sample.mp4 \ -hls_list_size 0 \ -hls_key_info_file keyfile \ -b:...
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1answer
60 views

How to make a video of two images morphing into each other?

I wanted to make a short video of one image becoming another, in a sort of transformation. I thought that some kind of interpolation could help me so i downloaded ffmpeg. But I don't really now how to ...
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2answers
1k views

Change audio track order in MKV files

I have a bunch of MKV files, that were all made the same way: one video track audio track 1 is english audio track 2 is german Now I want to change the audio track order, so that german is track 1 ...
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148 views

Error splitting the argument list: Option not found

I have a problem with ffmpeg. When I upload video only conv 720 original quality but I add conv in setting 240 and 480 and 360 When I go to alog file I find an error: /usr/local/bin/ffmpeg -i /...
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40 views

ffmpeg: Encode a video that has creation_time recognized by android

I use ffmpeg to convert some of my videos which were recorded on an android phone (samsung galaxy s9+): ffmpeg -i src.mp4 -metadata creation_time="2013-05-02 22:01:04" -c:v libx265 -crf 24 -preset ...
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22 views

Rendering a high-fps gif from a video with ffmpeg?

I've been at this for about an hour. I've extracted the frames from my clip and rendered the frames to a mp4 with no problem. The mp4 plays exactly like how I'd like my gif to play, but when using ...
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113 views

How to concatenate 360° videos with FFmpeg?

I have some video mp4 files that I need to concatenate. I'm working with FFmpeg (self-built version N-93863-g58d167b) under Ubuntu Linux 18.04. I found a lot of information about this, but nothing ...
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93 views

How to use VLC to convert MKV files to MP4 files without the video being shortened

I'm attempting to use VLC to convert an MKV file (containing 1920 x 1080 video) to an MP4 file but I'm not having a great deal of success. The MKV file is a 6 minute video where most of the time, just ...
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1answer
233 views

How do I convert an MKV file to MP4 that has two audio streams and I only need one of them with ffmpeg?

The command I usually use in case of single audio stream mkv files to convert them to mp4 is: ffmpeg -i location of mkv file\movie.mkv -c copy location of my usb stick\blablabla.mp4` But when I did ...
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1answer
48 views

How do I batch convert multiple video files, using freeware? [closed]

I wanted to use AviDemux 2.7.2 but the companion executable called avidemux_jobs.exe, does not execute the jobs added to the joblist in the main program. So, this is not off-topic, because it ...
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101 views

Avoiding blocky output on ffmpeg live stream

I am new to ffmpeg and tvheadend. However, I would like to create a live TV stream using ffmpeg and tvheadend. From tvheadend, I can view the different tv channels - however, they stop working after ...
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1answer
49 views

Lossless (or close to) mkv to mp4 conversion with burning subtitles

I'm new to ffmpeg, sorry if this was asked before already but I can't find the exact solution I'm looking for. So I have a 250MB .mkv file with subs And I want to turn it into a .mp4 file with ...
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1answer
521 views

How to achieve a fast encoding speed from H.265 to H.264 using FFmpeg?

So I'm pretty new to video encoding and I'm currently using FFmpeg to change the encoding of a video from H.265 to H.264 so it's suitable for the web. The current syntax of the command I'm running is ...
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23 views

“MP4” files unreadable in TV/Video players but readable in my PC and phone

I download series(.mp4 files) with my phone and copy them into the USB flash memory using OTG adapter and see them in the TV or the video player. But this week I downloaded 3 files as always but got ...
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1answer
274 views

ffmpeg to fix video playback speed without re-encoding?

What's the best way to fix incorrect timestamps on a network camera using ffmpeg? Running the camera in h264 mode with a 1fps correctly produces duration=1.000: ffmpeg -hide_banner -rtsp_transport ...
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1answer
45 views

How to merge video and audio files without loosing original caracteristics [duplicate]

I have video.mp4 only file, and audio.m4a file. I need to merge them both, and I need the output to be the same video without creating new resolution or modifing caracteristics. OS: windows 10 Thank ...
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1answer
83 views

FFMPEG: 2 FPS video to 30 FPS. How?

I have a 2 FPS video and I would like it to be a 30 FPS with a speed increase of 15. Is this "re-sampling up"? I don't even know how to google the question.
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253 views

Using ffmpeg to convert video: solution to rejected AMV container?

Someone at Reddit inspires me to try this command: ffmpeg -r 25 -i input.mp4 -c:v amv -vf scale=160:128 output.amv Sadly, that produces an error: Unable to find a suitable output format for 'output....
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1answer
225 views

ffmpeg says “ratecontrol_init: can't open stats file” when doing 2-pass encoding

I am running the following commands for two-pass encoding with ffmpeg and x264: ffmpeg -t 5 -i Meridian.avi -filter:v scale=-2:240 -b:v 0.20M -passlogfile Meridian-240 -pass 1 -f null /dev/null ...
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84 views

Zoom video using ffmpeg commands batch

I need one batch code for ffmpeg which can encode & zoom resolution of all videos inside folder to 110% & 125% of original using batch code. Here are some codes which I test not working: for ...
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91 views

Failing to install SUPER video converter v2019.Build.75

I am trying to install SUPER v2019.Build.75 Free edition downloaded from here: https://www.erightsoft.com/SUPER.html#Dnload. I have been using this tool years ago, but not lately. The current ...
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306 views

FFmpeg settings for encoding for 4K UHD Blu-ray Disc

What FFmpeg settings should I use for taking raw video and converting it to x265 for 4K UHD Disc? This is a 1-Pass example. Are there more -x265-params needed? For Audio, will DTS -c:a dca -strict -...
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1answer
36 views

Low conversion quality using ffmpeg to merge audio and video

This is what I'm using to merge audio and video in my C# Win From Application and it works fine, but the video bit rate is very low. I'd like to keep the bit rate as it was for the original video, how ...