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x264 is a C library. x264 has no bugs, it has no vulnerabilities, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

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Support

x264 has a low active ecosystem.

It has 257 star(s) with 202 fork(s). There are 28 watchers for this library.

It had no major release in the last 6 months.

x264 has no issues reported. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of x264 is current.

Quality

x264 has no bugs reported.

Security

x264 has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

x264 is licensed under the GPL-2.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

x264 releases are not available. You will need to build from source code and install.

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x264 Key Features

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Community Discussions

Trending Discussions on x264

Dynamic volume mixing with FFMPeg

Low latency video player on android

Reading strings and decreasing them

Large Video file Conversion using ffmpeg

Drag and drop ffmpeg batch file

How to create x264 RTSP server with OpenCV Python with GStreamer backend

How to include audio in an overlay ffmpeg command?

Why does every encoded frame's size increase after I had use to set one frame to be key in intel qsv of ffmpeg

FFmpeg .avi to .mp4 video transcoding - Android

Trying to remove every character inside brackets "[...]"

QUESTION

Dynamic volume mixing with FFMPeg

Asked 2021-Jun-01 at 15:46

I am streaming audio using FFMPeg and need to mix two audio sources using FFMpeg and set the volume level dynamically. I.e. once the stream starts, I need to be able update the ratio of the two volumes.

Currently, I have the volume mixing and streaming working using the CLI version of FFMPeg but the volume mix ratio is static.

Is there a way to dynamically set the volume ratio using the CLI tool? Perhaps something with an FFMpeg expression?

Or is using the API the only option? If so, can anyone point me towards an example of dynamically mixing audio? I haven't been able to find one.

Edit: here are the params I currently pass to mix audio. Again, this works fine, so not including the log as there is no error to fix. The question is how can I adjust the ratio of the amix mix after the process has launched. Willing to use the API if need be.

...

ANSWER

Answered 2021-Jun-01 at 15:46

Commands

Some filters support commands which allow temporal control of some filter options. Not all filters have commands. Sometimes commands get added so always use a recent ffmpeg to take advantage of new features.
Refer to ffmpeg -filters and look for C next to the filter name, or view man ffmpeg-filters or FFmpeg Filters documentation and search for commands under each filter.
Not all options have a command equivalent.

(a)sendcmd and (a)zmq

asendcmd / sendcmd - does scheduled commands or interactive commands via interactive mode.
azmq / zmq - does interactive, on demand, live commands. To enable (a)zmq you need to install the libzmq library and headers and configure ffmpeg with --enable-libzmq.

asendcmd example

Halve the volume at timestamp 10:

Source https://stackoverflow.com/questions/67706591

QUESTION

Low latency video player on android

Asked 2021-May-20 at 11:24

I'd like to be able to stream the video from my webcam to an Android app with a latency below 500ms, on my local network.

To capture and send the video over the network, I use ffmpeg.

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ANSWER

Answered 2021-May-20 at 11:24

I do not know a native low latency player in Android.
However you can use a WebView in Android Studio and use a player in the web.
With this solution I streamed the webcam of my pc to my phone (in the local network) with livecam.
They use websockets to transmit the video frame by frame, which is not ideal. With this method I had 370 ms of latency.

Source https://stackoverflow.com/questions/67572522

QUESTION

Reading strings and decreasing them

Asked 2021-May-14 at 20:12

I just have a simple question when dealing with text files: I have a text file and want to make a python program to read it and if it finds any number it replaces it by the number preceding it like if it finds 4 it replaces it with 3 so how can I do that?

The problem for me in this program is that python reads the numbers as strings, not integers, so it can't decrease or increase them.

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ANSWER

Answered 2021-May-14 at 20:12

Putting @Samwise's comment together with your code:

Source https://stackoverflow.com/questions/67539205

QUESTION

Large Video file Conversion using ffmpeg

Asked 2021-May-12 at 13:02

I am using ffmpeg tool to convert videos from wmv to mp4 formats using the following code -

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ANSWER

Answered 2021-May-12 at 13:02

Updating ffmpeg to latest version solved my issue. Thankyou everyone for your comments.

Source https://stackoverflow.com/questions/66741259

QUESTION

Drag and drop ffmpeg batch file

Asked 2021-May-07 at 06:24

I have little to nothing experience with ffmpeg and found this nice drag and drop script but it only work for one file at the time. Can it be modified to work for multiple files at the same time?

...

ANSWER

Answered 2021-May-07 at 06:24

You need a to run a for loop on %* to perform the action for each item then use the metavaiables in the ffmpeg command (which will be each dragged item):

Source https://stackoverflow.com/questions/67429484

QUESTION

How to create x264 RTSP server with OpenCV Python with GStreamer backend

Asked 2021-May-03 at 23:42

My goal is to create a RTSP server using OpenCV Python using the GStreamer backend. I have RGB images stored as OpenCV Mat, and I would like to create a VideoWriter which can write to a RTSP sink. The output video must be x264 encoded.

I believe this can be easily achieved using a GStreamer pipeline and providing the pipeline arguments to the VideoWriter constructor and then later pushing frames to the VideoWriter, but the issue is I have no experience working with GStreamer and I find it very confusing.

The answers I have found on SO are incomplete, use specific hardware decoders (ex for NVIDIA Jetson), or are overly complex. I'd like to find a more generic solution which works on CPU.

...

ANSWER

Answered 2021-May-03 at 23:42

I have created a project something related to your requirement sometime ago. This could be a kickstarter and customize it based on your need. I'm attaching my github repository link below.

OpenCV RTSP Server

Any issues related to the project can be raised in the github itself and doubts can be cleared here.

Source https://stackoverflow.com/questions/67376753

QUESTION

How to include audio in an overlay ffmpeg command?

Asked 2021-Apr-26 at 23:42

Using ffmpeg I add a video overlay successfully over an origin video (origin has audio, overlay doesn't). However the audio of the origin video doesn't appear in the result video.

...

ANSWER

Answered 2021-Apr-26 at 23:42

Tell it which audio you want with -map:

Source https://stackoverflow.com/questions/67271854

QUESTION

Why does every encoded frame's size increase after I had use to set one frame to be key in intel qsv of ffmpeg

Asked 2021-Apr-22 at 08:32

I used intel's qsv to encode h264 video in ffmpeg. My av codec context settings is like as below:

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ANSWER

Answered 2021-Apr-22 at 08:32

FFMPEG doesn't reset the mfxEncodeCtrl's FrameType when encoding the next frame, it causes every frame after key frame to be IDR frame

Source https://stackoverflow.com/questions/67192978

QUESTION

FFmpeg .avi to .mp4 video transcoding - Android

Asked 2021-Apr-16 at 22:35

Using OpenCV 4.5.2 + FFMPEG on an android app

I'm trying to convert an .avi video file into a .mp4 file using x264, by running

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ANSWER

Answered 2021-Apr-16 at 22:35

Figured it out myself with some debug assitance from @llogan.

So, it looks like VideoCapture exports frames with BGR format, thus the Red and Blue colors being switched out. In order to fix my issue all I had to do was to convert the frame from BGR to RGB using the OpenCV utility method:

Source https://stackoverflow.com/questions/67128202

QUESTION

Trying to remove every character inside brackets "[...]"

Asked 2021-Apr-12 at 13:59

I'm trying to find a way to detect and remove characters within a range of characters inside a string. Tried looping around and not much of a success and now experimenting for Regex.

So I'm supposed to input a filename e.g. [1080p]Godzilla.subs.mp4 or JohnnyEnglish_720[EnglishSubs].mp4 or [x264]psa_recording[1270x720].mp4

I'm supposed to remove all characters within the [] and output Godzilla.subs.mp4 or JohnnyEnglish_720.mp4 or psa_recording.mp4`

...

ANSWER

Answered 2021-Apr-12 at 13:55

I think you're overcomplicating your regex. I think in this case a simple one like the following should work.

Source https://stackoverflow.com/questions/67059532

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