Questions tagged [codec]
Shorthand for "Encoder/Decoder". A codec allows to convert data into a different representation and decode it again. Codecs are mostly used in signal transmission, e.g. for audio/video playback or streaming.
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How to build Opus or playable audio from wireshark capture?
I was able to create a wav file from a wireshark capture. Here is how I do it.
1. I use tcpdump to capture all the packets and filter for RTP packets. Each RTP packet has a "Synchornization ...
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FFMPEG cant render from transparent webm a transparent png frame
I want export every frame like original source, in webm video is alpha/transparent video track, and if I try export with my base command will export with black background.
ffmpeg \
-hide_banner \
-...
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QSV hardware acceleration does not work with ffmpeg 7.0
I've been using Intel Quick Sync (QSV) hardware acceleration for several years with ffmpeg for decoding, encoding, and filtering. I've been using only 4.4-full_build-www.gyan.dev on Windows 7 and 10 ...
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How to preserve contrast/highlights when converting ProRes HDR 10-bit to SDR using hevc_videotoolbox?
I'm trying to convert a 4K HDR 10-bit video clip to BT.709, preserving as much color as possible while allowing the clip to be played where HDR is not supported.
With the command below, the output is ...
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Audio Codecs Confusion
I want to purchase a new pair of Bluetooth earphones which support DD+ (E-AC-3 JOC) and LDAC, among others. However, I am finding it hard to understand this.
I want to be able to use DD+ for movie ...
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Changing Video's Sound with another sound with using Shotcut
I want to replace the sound of the video file I have with another video file. I use a program called Shotcut. I have a 250 mb video, mkv file, audio in opus. I change the sound with Shotcut and select ...
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How to make Pipewire (or whatever) use the LDAC codec automatically when connecting my bluetooth headset automatically
Problem:
Whenever I turn on my Bluetooth headset it connects automatically to my pc choosing the "HSP/HFP" codec. This coded sounds terrible.
Additional info:
When I click "disconnect&...
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How to know my audio codec will support the output container in. Fluent-ffmpeg [closed]
I am building a YouTube downloader. As YouTube doesn’t store high quality video with audio and store them separately so I have to merge them on server.
For merging I am using a Node.js server with ...
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FFmpeg Could not write header for output file #0 (incorrect codec parameters ?): Invalid data found when processing input
I'm having trouble using FFmpeg to host an RTSP server for continuous video streaming. The command I'm using is:
ffmpeg -report -v verbose -re -stream_loop -1 -i store-aisle-detection.mp4 -c copy -f ...
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Why does ffmpeg alter timestamps when "-codec copy" is given, and how to prevent this?
I am currently trying to remove certain audio tracks from a bunch of m2ts files (mainly to save space), using ffmpeg. In doing so, I would like the removal of those tracks to be the only action that ...
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GNOME Network Displays - PackageKit service not found, codecs not detected
What's up StackExchange-land :)
I'm currently running into an issue with getting PackageKit to install or recognize codecs on my system when using GNOME Network Displays on Ubuntu 23.10.
When I try to ...
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Is '-c' just shortened alias for '-codec' in ffmpeg?
I looked at the documentation and it does not seem clear to me. For example are the following two commands essentially the same?
ffmpeg -i .\video.mp4 -i .\metadata.txt -map_metadata 1 -codec: copy -...
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H264_QSV will decode, VP9_QSV will not
Yet another Intel Quick Sync (QSV) issue.
I've been using QSV enabled decoders, encoders, and filters for about a year, and mostly it works, at least for H264. But, as others have reported, HEVC and ...
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Video Encoded using FFmpeg is not being played in Azure Kinect Viewer
I captured a video using a Kinect Azure DK device and could play it back using Azure Kinect Viewer (v.1.4.1). However, when I encode a video using FFmpeg, the commands are given below. I can not ...
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Best Lossless Video Codec for 8 bpc RGB image sequences?
I render 3D animations, many of which take days or even weeks to render at a time, and I need to keep a lossless archive of the output files. The output format from the render engine is 8 bit per ...
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