ffmpeg examples

http://blog.csdn.net/lius1984/article/details/4367150 Organize common ffmpeg commands so that you find them easily. 1. avi to FLV Ffmpeg-i video_origine.avi-acodec libmp3lame-ab 56k-ar 44100-b 200k-r 15-s 320x240-f flv video_finale.flv 2.AVI turn DivX encoded MPEG4 avi Ffmpeg-i video_origine.avi-s 320x240-vcodec MSMPEG4 Video_finale.avi 3. Save the audio in

699 people read comments (0) collect reports Save it for reference later: 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

When compiling FFmpeg, add--ENABLE-LIBZMQ in the configuration to send commands to FFmpeg via TCP communication usage:zmqsend [-H ip:port] TARGET command ARG Receive comm ANDs sent through a LIBZMQ client, and forward them to filters in the filtergraph. Default host is localhost:5555 the send message must being in the form: TARGET COMMAND [ARG] depending on the res Ult, the filter would send a

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