ffmpeg drm

Before the article: FFmpeg is an open-source codec framework with powerful functions. However, if we use it for development, there is a severe polarization. the great gods are discussing profound issues, and most of the little white connections like me cannot go in. Recently, I accidentally learned how to get started. Now I write this series of articles "no basic learning video decoding" to help you get started. The blogger's development machine is ba

Almost all of the content in this article comes from FFMPEG on Windows. However, due to the domestic network blockout, it is difficult to access the content under this domain name. Therefore, on the one hand, I have translated the content according to my own understanding and practices, on the other hand, it is also to provide a convenient reference method. Note: For the word compile and build, This article uses the word compile in a unified way, a

What is FFmpeg? FFmpeg is an open source, free cross-platform video and audio streaming solution that belongs to free software, with a LGPL or GPL license (depending on the component you choose). It provides a complete solution for recording, converting, and streaming audio and video. It contains a very advanced audio/video codec library Libavcodec, in order to ensure high portability and codec quality, Lib

Help Options standard Options license option licensing options configuration Options Program options Document Options Documentation Options component option Component options individual component option individual component Options Extension Library support external library support Hardware acceleration features hardware acceleration features tool chain options toolchain options Advanced options advanced options optimization option Developer Option Developer Options Help Options Ability options

Here, cropping refers to timeline cropping, not space cropping. For example, you want to crop the video from 1 minute 20 seconds to 30 seconds and save it as a video. This is the question to be discussed in this article. IVideo Cropping FFmpeg provides simple command parameters: FFmpeg-SS start-T duration-I input-vcodec copy-acodec copy output The preceding command is explained in a bit. -SS start time,

There are too many cool people here. Come and ask.I am using the FFMPEG and mencoder command line encoding.ProgramSome ProblemsWhy does FFMPEG use the-SS and-T parameters to capture video clips and encapsulate them in MP4 format? However, if the video is encapsulated as MKV, the video will not be synchronized. However, when the first 1st frames of the video are static for a period of time, the video will st

Transferred from: http://blog.csdn.net/simongyley/article/details/9984167　　1. Decode the H264 file as YUV fileFfmpeg-i file.h264 FILE.YUVFFmpeg conversionD:\ffmpeg\bin>ffmpeg.exe-i C:\USERS\PC\DESKTOP\SP.MP4-VF scale=500:-1-t ss.flvC:\Users\pc\Desttop\sp.mp4 is the address of the file you need to convertScale=500:-1 indicates that the width of the quasi-post-swap video is 500px-1 and can be written in 500:500, indicating that both width and height are

This article mainly introduces FFmpeg, the article comes from the blog Garden Rtc.blacker, supports the original, the reprint must explain the source, the individual public number blacker, more see Www.rtc.helpDescriptionPS1: If you start learning audio and video directly from WEBRTC, you may not have heard of ffmpeg, and you don't need it, but as you improve your personal abilities, you'll find it really u

[Version] Ffmpeg 1.2.6, android ndk r8b, cygwin [Compile in windows] This is simpler than imagined. compile it with MinGW and use the generated lib library in VS. Refer to the blogs of the following netizens: Compile ffmpeg in windows [Configuration compilation] Install cygwin, put android ndk under the home Directory of cygwin, the path is like this: D: \ cocos2dx \ cygwin \ home \ Administrator \ android-

1. Get to the push stream address2. Go to cmd, enter command ffmpeg-re-i xxxxx.flv-c copy-f flv "Xxxxurl"whichxxxxx.flv for local video files, Sioeye push stream needs to be compliant with video H264, audio ACC Code"Xxxxxrul" is the push-stream address////////////////////////////////////////////////////////////////////////////////Used in Ffmpe Nodejsvar exec = require (' child_process '). exec;var Ffmpeg =

Recently in the study of video-related technology, learned ffmpeg, on the internet to see how to transplant FFmpeg to Android, looked for a few days, look at a lot of things, is not a complete transplant successful, and finally through the production of various materials, combined with online information, Finally, the ffmpeg was done. Record it here.Overall conce

Install ffmpeg1 in linux and download ffmpeg. 2 unzip tarxvfjffmpeg-0.11.1.tar.bz2 to obtain the decompressed directory is ffmpeg-0.11.13, configure www.2cto.com./configure -- enable-shared -- prefix/usr/local/ffmpeg... Install ffmpeg 1 in linux and download ffmpeg. 2, unzip

0 IntroductionWith the development of video coding and decoding technology, computer network technology, digital signal processing technology and embedded system, the remote video surveillance system with embedded network video server as the core has begun to emerge in the market. The system transmits the analog video signal from the camera directly into the video stream through the built-in embedded video encoder, which is transmitted through the computer network. Embedded network video server

In the past two days, I have studied how to obtain data from the DirectShow device by using FFMPEG. Here I will record it for memo. The methods described in this article mainly correspond to Windows platforms. 1. Column Devices ffmpeg -list_devices true -f dshow -i dummy After the command is executed, the output result is as follows (Note: Chinese devices may encounter garbled characters ). The name of th

Basic concepts of FFMPEG: Ffmpeg is an open-source codec framework that provides an audio/video recording, decoding, and encoding library. FFMPEG is developed in linux, but it also has a compiled version in windows.The ffmpeg project consists of the following parts:The command line tool for converting

NDK part 1, download NDK here's a stroke. 2, Decompression NDK do not unzip, file permissions will be wrong. execution, will automatically decompression, and then MV to want to put the place. I put it in the "/usr/local/bin/android-ndk-r10d" (this directory is used to refer to $ndk_dir). 3, download FFmpeg I'm under the 2.5.3 version. 4, decompression FFmpeg extract

For a person who studies video processing, if you haven't used ffmpeg, it basically means driving but not knowing what the engine is. However, ffmpeg compiler installation and use of the work is not a worry, almost every step will be a lack of library problems and so on, and sometimes a dependency you installed, but installed several, incorrect location or version of the problem may occur. Strewn, now summa

The more important functions and data structures in FFMpeg are as follows: 1. Data structure: (1) Avformatcontext (2) Avoutputformat (3) Avinputformat (4) Avcodeccontext (5) Avcodec (6) Avframe (7) Avpacket (8) Avpicture (9) Avstream 2. Initialize the function: (1) Av_register_all () (2) Avcodec_open () (3) Avcodec_close () (4) Av_open_input_file () (5) Av_find_input_format () (6) Av_find_stream_info () (7) Av_close_input_file () 3. Audio and Video co

FFmpeg Quick Start in Windows Author: A. TNG Email: Jiyucn@163.com Refer: Http://www.ffmpeg.com.cn/ FFmpeg Introduction What is FFmpeg? FFmpeg is a complete solution for recording, conversion, and streaming audio and video, includingLibavcodec, A s

FFMPEG in Linux does not support AMR Format Decoding by default. Therefore, you need to manually compile the FFMPEG source code to add a decoder to support Decoding of AMR file formats. System Environment: SuSE 64bit OSPreparations:1. Download The FFMPEG source code: http://ffmpeg.org/download.html. In this example, select 0.11.1.2,Download opencore AMR: http://s