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The success of YouTube has led to the emergence of domestic video websites. Recently, my friend asked me to help him write a program to convert various video formats into FLV, here we will share with you the difficulties and experiences encountered in programming.
1. engine used: FFMPEG + mencoder2, FFMPEG the latest version of: http
First download ffmpeg-2.4.3.tar.bz2 and last_x264.tar.bz2, you can see the attachment.CD ~mkdir ffmpeg CD ffmpeglibx264 needs yasm, so install Yasm firstsudo apt-get install yasmThen install libx264sudo aptitude-y install Libx264-devCopy two attachments to the current path and unzipGo to x264-snapshot-20141130-2245 (last_x264.tar.bz2 extracted to the folder)./configure--enable-shared--enable-picMakesudo ma
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
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
ffmpeg.exe-I f: \ hacker house \ hacker Song-AB 56-ar 22050-B 500-R 15-s 320x240 F: \ 11.flv FFMPEG-I f: \ 01.wmv-AB 56-ar 22050-B 500-R 15-s 320x240 F: \ test. FLV use the-SS parameter (time_off set the Start Time Offset) to start the conversion task from a specified time point. For example: capture the thumbnail while converting the file format: FFMPEG-I "test. avi "-y-F image2-SS 8-T 0.001-s 350x240
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
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
FFmpeg is an open-source platform for recording, converting, playing and streaming video and audio. It supports des libavcodec, a popular video/audio codec.
Several popular Android applications are built based on FFMPEG, including rockplayer, moboplayer, acrmedia, vitalplayer, V-cut express etc. if you're developing multimedia applications that needs a video/audio codec,
FFmpeg is a popular multimedia framework that can be used to record, transform, and convert digital audio and video into streaming open-source computer programs. Use LGPL or GPL license. 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, Libavcodec Many codec are developed from scratch.It is al
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
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