h264 lossless coding

Is it possible to do completely lossless encoding in h264? By lossless, I mean that if I feed it a series of frames and encode them, and then if I extract all the frames from the encoded video, I...

Android MediaPlayer error (1, -2147483648)

I have two different videos which I'm trying to load into a VideoView using videoView.setVideoURI(Uri.parse(url)); The two videos, let them be video 1 and video 2, have the following specs...

How can I replace special character in a string with underscores using a Perl script?

I have a script taking mythtv recorded shows and encoding them in h264 using handbrake. the script is written in Perl. My questions is how do I replace spaces and special characters with and...

HandBrakeCLI bash script convert all videos in a folder

Firstly, I searched around for my problem. But none can solve it. I want to convert all videos file in a directory and the output will be saved in another directory. I got a bash script from...

Unknown encoder 'libfaac'

I'm using carrierwave-video to upload video with my ruby on rails app. But I have this problem when try encode the video: Unknown encoder 'libfaac' Errors: no output file created. I have tried...

HTML5 Video tag not working in Safari , iPhone and iPad

I am trying to create an html5 web page in which there is a small video like 13s , I converted the flash version of this video into 3 format : .ogv using fireFogg , .webm using firefogg also and...

iOS app preview video not saving in iTunes Connect

I created a video of my iOS game using quicktime, processed it & exported it with iMovie iOS App Preview settings. Though I'm able to upload the video to iTunes Connect and successfully play it...

Lossless conversion of MKV to MP4 with Handbrake

What is the argument that I need to provide to prevent Handbrake from losing the quality of the source video when converting to MP4. I've read over all the documentation and I can see where it...

I can't get the resolution of 1334x750 whether through handbrake or ffmpeg

With Handbrake, I could only get 1333x750. I tried to follow the advice given on https://stackoverflow.com/questions/28228521/ffmpeg-resizing-video-puts-it-at-wrong-resolution/29249573#29249573 to...

HandbrakeCLI wont automate via C# process

I am trying to automate HandbrakeCLI using C# via the System.Diagnostics.Process class. However, as long as my program is trying to run the process, it seems like the process never advances. Here...

VP9 encoding limited to 4 threads?

I am considering to use VP9 to encode my BluRays in the future, since its an open source codec. But I cannot get Handbrake or ffmpeg use more than 50% (4) of my (8) cores. The encoding time is...

Can this be done in Handbrake or FFMPEG

Just wonder this could be done in Handbrake or FFMPEG. Any other transcoding software in Windows or MacOS would also be acceptable. I have many family videos, shooted with DSLR/action...

Local files transfered to a Kubernentes Persistent Volume?

I'm extremely new to Kubernetes (besides it's not my field) but I got required to be able to execute this practice. Question is that I need a Handbrake Converter in a containerized pod with a...

Tensorflow crash with CUDNN_STATUS_ALLOC_FAILED

Been searching the web for hours with no results, so figured I'd ask here. I'm trying to make a self driving car following Sentdex's tutorial, but when running the model, I get a bunch of fatal...

ffmpeg avcodec_open2() return error -22 only in ubuntu

AS title, I'm working on a project on Mac with ffmpeg. It runs on my Mac to encode frames to vp9 & vp8. But when I run it on my docker image in a ubuntu, the function avcodec_open2(), returns...

FFmpeg error: Unable to find a suitable output format for ''

I'm new to ffmpeg as well as Android programming. I'm trying to load a video from a URL and crop it with ffmpeg. I want to save that video to a file. This is the command I found online: "-i " +...

Special characters when using Windows batch files?

I'm having trouble running Windows batch files using Handbrake, whereby if a source file contains special characters then I get an error saying it can't find the source file because for some...

Concatenation and Transcoding of MPEG-TS files FFMPEG

I have a DVR which records over-the-air TV and saves the recordings in the MPEG-TS format, splitting each episode across multiple files, each ~500 MB in size. To simplify archiving, I have been...

Convert videos from .264 to .265 (HEVC) with ffmpeg

I see that there are a few questions on this subject but I am still getting errors. All I want to do is convert videos in my library to HEVC so they take up less space. I've tried this: ffmpeg -i...

How to make handbrake use the cpu with less intensity?

I've recently began using HandBrake to process some videos I downloaded to make them lighter. I built a small python GUI program to automate the processing, making use of the CLI version. What I...

Playing video with transparency in iOS

A bit of background, i want to play videos with transparency on the web converted from gifs, for all non apple devices i can easily export a webm file like so ffmpeg -i test.gif -c:v libvpx-vp9...

MoviePy smaller clip splitting causing glitches when concatenating files, mismatched audio, encoding

My code is below. The breaker file: from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip splits = [[1, 2], [5, 6], [7, 10]] for i, split in enumerate(splits): start, end = split ...

why is sideways tire slip separated from forward slip on Unity wheel collider?

I finally understood why my car in unity can't drift/powerslide like cars do in other racing games. Feel free to skip the boring part and only read the question down below if you know this...

FFMPEG Error Code: "Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_scale_10"; [complex_filter], [-loop 1], [overlay]

I'm currently experimenting a bit with ffmpeg around. I want to produce a video that has a .jpg background image over which several videos are overlaid. Currently I can overlay a black background...

HandbrakeCLI on Ubuntu with Python Errors with File Not Found

I'm trying to write a program in python3 that uses handbrakecli on my ubuntu machine to recode some video. I'm missing something stupid but I cannot for the life of me figure this out, and I've...

Efficient way to create variant playlists from mp4 for HLS

I am totally new to video encoding and options, and just learned about Apple's HLS requirements. So far, I've been able to get something working for my iOS app. However, I find the entire process...

Video Play Button Is Crossed Out in Safari (Codec Problem)

EDIT: I found, that the audio is the problem. However I can't get any settings with audio working. Unfortunately I have a big problem that I can't solve myself. I have a .mp4 file that was given...

make ffmpeg chose Nvidia CUDA over Intel QSV (Windows 10 with two video adapters)

I just set up a 'new' PC with built-in Intel video and an Nvida card: mostly to speed up video processing with ffmpeg and other programs. At first the built-in Intel was disabled, running only the...

Meaningless Spacy Nouns

I am using Spacy for extracting nouns from sentences. These sentences are grammatically poor and may contain some spelling mistakes as well. Here is the code that I am using: Code import...

django serve video as blob

django 3.2.8; safari Version 14.0.3 (16610.4.3.1.7) for mp4 and mov, safari and chrome do not work, opera does. relative useful...