Intercepting video specifies frames as pictures, and PHP ffmpeg extensions are perfectly implemented:
$movie = new Ffmpeg_movie ($video _filepath);$ff _frame = $movie->getframe (1);$GD _image = $ff _frame->togdimage ();$img = "./test.jpg";Imagejpeg ($gd _image, $img);Imagedestroy ($GD _image);
But here's the problem, the video that the smartphone takes, because the camera is in a different direction, the video will be rotated, and with meta informat
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,
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
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
1. Installing Yasm2. Installing x2643. Installing FFmpegThere are many examples of installing online, the following are my main reference two blog:Http://www.cnblogs.com/lidabo/p/3987378.htmlhttp://blog.csdn.net/zmlcool/article/details/8141097The following installation problems are mainly mentioned:libavcodec/libavcodec.a(libx264.o): In function `X264_init‘:/usr/local/ffmpeg-2.5/libavcodex/libx264.c:688: un
wrapped. Default value is 0.
This option is useful to avoid to fill the disk with many segment files, and limits the maximum number of segment files WR Itten to disk Towrap. (The number of slices is set to start overwriting, if set to 0 will not overwrite, the default value is 0.) This option avoids storing too many slices on disk and can limit the number of slices written to disk.
' Start_number number '
Start The playlist sequence number from number. Default value is 0. (The value of sequence
Recently, we are developing streaming media. on the server side, live555 does not support MP4, Avi, and other video container formats. Therefore, we plan to use FFMPEG for extension. Use FFMPEG to parse the MP4 file and parse it into the basic video stream format supported by live555 (such as H. 264, etc.) and audio stream format, and then use live555 to process the basic audio and video streams, and then s
Install FFMPEG in Linux1. Download FFMPEG. 2, unzip tar xvfj ffmpeg-0.11.1.tar.bz2 to obtain the directory after decompression is ffmpeg-0.11.1 3, configure www.2cto.com. /configure -- enable-shared -- prefix =/usr/local/FFMPEG where: -- enable-shared allows it to compile an
Install ffmpeg 1 in linux and download ffmpeg. 2, unzip tar xvfj ffmpeg-0.11.1.tar.bz2 to obtain the directory after decompression is ffmpeg-0.11.1 3, configure www.2cto.com. /configure -- enable-shared -- prefix =/usr/local/ffmpeg where: -- enable-shared allows it to compil
How to install FFmpeg 2.5.1 on Ubuntu 14.04/14.10
FFmpeg is a popular multimedia framework. When installing some players, you must rely on FFmpeg to easily implement ncode, transcoding, mux, demux, stream, filter, and play audio and video content.
The latest FFmpeg 2.5.1 version has been released. Ubuntu 14.04 and 14
Objective: To enable the Nginx support RTMP protocol to push the stream, and support HLS distribution function and FFmpeg transcoding multi-bit rate function.First, the preparatory workModule: Nginx-rtmp-module-master (rtmp protocol support):http://nginx.orgHttps://github.com/arut/nginx-rtmp-module1. Install the dependent package:#yum-y install gcc glibc glibc-devel make nasm pkgconfig lib-devel openssl-devel expat-devel gettext-devel libtool mhash. x
Objective: To enable the Nginx support RTMP protocol to push the stream, and support HLS distribution function and FFmpeg transcoding multi-bit rate function.First, the preparatory workModule: Nginx-rtmp-module-master (rtmp protocol support):http://nginx.orgHttps://github.com/arut/nginx-rtmp-module1. Install the dependent package:#yum-y install gcc glibc glibc-devel make nasm pkgconfig lib-devel openssl-devel expat-devel gettext-devel libtool mhash. x
All download sourcesCompile FFmpeg in Ubuntu and support x264 and x265.Ubuntu 12.04
FFmpeg 2.1 Release
Note:Upgrade cmake to 2.8.8Upgrade yasm to 1.2.0
0000. materials:Http://stackoverflow.com/questions/19634453/ffmpeg-how-to-generate-a-mp4-with-h-265-codecFFmpeg supports encoding HEVC/H.265 since 2-12-2014 with libx265. Now you can use
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