Non-MP4 video conversion to MP4 process based on ffmpeg teaching resource libraryOperating Environment:Win2003(or Win2008 64bit, priority this step),SQL Server 2005(or SQL Server2008 )Execution mode:Batch mode execution, converted video list, write database, error log write to the local execution program.1. Conversion Step Description1. Non-
Www. fire-rain.comblogFFMPEG_H264_MP4PHP + FFMPEG automatic transcoding H264 standard Mp4 File recently made an online teaching network project, need to upload any format of video automatic h264 standard video, using html5 playback. Finally, PHP + FFMPEG is used for implementation. Here we will share our detailed solutions with you! Configure ph
Http://www.fire-r
Php+ffmpeg implements the automatic transcoding of video into H264 standard MP4 file,
Configuring the php.ini File
File_uploads = on;//whether to allow the switch to upload files over HTTP. The default is on is open upload_tmp_dir;//File upload to the server where temporary files are stored, if not specified will be used the system default temporary folder Upload_max_filesize = 1024m;//Wang Wen Business, th
-01316438de54fba6421e9817746b2229
Allow Flash Player to support playback of MP4 files, and solve the problem of not loading side-by-side multicastFirst, let the Flash Player support MP4, you need to convert the encoding to H. MP4.Second, to solve the problem of side loading side playback, the MP4 in the metadata infor
Because my itouc4does not support rmvb, you must convert it to MP4 if you want to watch cartoons online. Originally, I used mediaco der for conversion, but most recent versions often encounter errors. Some time ago I wrote a conversion method using AVS + x264. Now I want to remove AVS and use FFMPEG.
Use1. View rmvb attributes
Before conversion, check the file attributes, and check the resolution and other
you set the value is irrelevant, It relies on this stored format.
Well, it gave me an indication that I would see avformat_write_header right away. Unfortunately, only the simple introduction of the function in the document does not explain how the value changes.
There is no way to use the most primitive way, open source insight, view ffmpeg source bar.
Can see Avformat_write_header or relatively simple, only to call a few interfaces, the following q
Libswresample 0. 17.104/0. 17.104
Libpostproc 52. 3.100/52. 3.100
Hyper fast Audio and Video encoder
usage:ffmpeg [Options] [[infile Options]-I infile] ... {[outfile options] outfile} ...
Use-h to get all help or, even better, run ' mans ffmpeg '
PHP calls ffmpeg transcoding video
Copy Code code as follows:
$cmd = ' ffmpeg-i u
The company's project needs to merge one image and one MP3 audio file into MP4 and play the video on HTML5. It was originally thought to be a very simple matter, so a simple FFMPEG command was quickly written for execution.
FFmpeg-I 2.mp3-F image2-I 3.jpg-acodec AAC-strict-2-vcodec libx264-ar 22050-AB 128 K-AC 2-y 4.mp4
PHP + FFMPEG Enables automatic Transcoding of videos into H264 standard Mp4 files,
Configure the php. ini file
Copy codeThe Code is as follows:File_uploads = on; // whether to allow file upload over HTTP. ON is enabled by default.Upload_tmp_dir; // upload the file to the place where the temporary file is stored on the server. If it is not specified, the default Temporary Folder will be used.Upload_max_files
whether the installation is successfulFfmpeg
If you see the following content, the installation is successful:
The Code is as follows:
Ffmpeg version 2.1.1 Copyright (c) 2000-2013 the FFmpeg developersBuilt on Dec 17 2013 23:32:40 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)Configuration: -- enable-libx264 -- enable-gplLibavutil 52. 48.101/52. 48.101Libavcodec 55. 39.101/55. 39.101Libavformat 55. 19.10
5.4 environmentCopy the Code code as follows:TAR-XJVF x264-snapshot-20120718-2245-stable.tar.bz2#进入解压后的源文件目录CD x264-snapshot-20120718-2245-stable/./configure--prefix=/usr/local--enable-sharedMakeMake install
//centos 5.4 Install the source installation ffmpeg with h264 extension TAR-XJVF ffmpeg-2.1.1.tar.bz2 //Enter the extracted directory CD ffmpeg-2.1.1 ./co
I found a ffmpeg code that supports h264 encoding. php calls exec to use ffmpeg for a long transcoding time and the CPU usage exceeds 80%. how can I solve this problem. What are the meanings of the parameters in the transcoding command? {Code...} found a ffmpeg code that supports h264 encoding. php calls exec to use ffmpeg
FFmpeg has very powerful features including video capture, video format conversion, video capture, video watermarking, etc. The use of these features on the Internet is mostly based on the command line. This is not conducive to our in-depth study of customized FFmpeg, in the future I will write a series of code to implement these features of the tutorial for everyone to learn. The first part of this series
Find a FFmpeg support h264 encoding, PHP call exec take advantage of ffmpeg transcoding time too long, CPU utilization of more than 80%, ask how to solve.
transcoding command also do not know what the meaning of the surface parameters?
$command='..\ffmpeg\bin\ffmpeg.exe -i ' . $file . '.' . $ext . ' -vcodec libx264 -vprofile main -preset slow -b:v 400k -maxrat
1, using ffmpeg extract MP4 h264 Code stream Write file method online There are many, do not know, please refer to the Raytheon Blog: http://blog.csdn.net/leixiaohua1020/article/details/11800877
2, but the file is a problem, the first can certainly play, but there will be a great chance to appear in the flower screen
A, first talk about the solution
In fact, it is very simple, but also use the Av_bitstream_
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
http://blog.csdn.net/qq_19079937/article/details/43191211Inside the MP4 structure, the HDLR field (specifically in ROOT->MOOV->TRAK->MDIA->HDLR) contains the stream is a video or audio or letter.FFmpeg Code:In the FFmpeg code, use the Codec->codec_type in the stream to determine what kind of flow the stream is.The 12th part of the ISO_IEC_14496 International standard is marked as follows:In the
Recently in the Research institute has video format to turn MP4Because HTML5 only supports MOV MP4and other formats: Looking at a lot of data found that turning into FLV is simple.But it's hard to turn mp4 ...After my disdain for the effort. Finally the conversion succeeded.The command is as follows:Ffmpeg-i d:\5367002155592.wmv-c:v libx264-strict-2 D:\test.mp4PS: I was converted in Windows Command window.You want to use
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