with The popularity of WEB application development, the need to play media ( video, audio ) in the browser is becoming more and more common; many enterprises are trying to add multimedia content to the website, the two most common ways :1. normal http file on demand, directly through the website front file upload upload file MP4 or FLV , save the path, the client through the open source Flash player or HTML5 The label goes to the playback server to
Requirement: The Android side puts a video stream that is playing on the webcam and intercepts it to save it as a MP4 (the recording is started when the video button is pressed).
Implementation: FFmpeg + x264 + sdl;
H264 Bare stream Packaging into MP4, there are a lot of articles on the Internet, FFmpeg also has a muxing example, the general process is the same, referring to FFmpeg muxing.c can write one. I
1, first download a storm video player
2, in the above website to download and install a good storm audio and video, open storm audio and video
3, click on the lower left corner of the Storm audio and video toolbox
4, click on the transcoding, if it is the first time use will appear in the following image
5, click to install
6, click Add File, add the MP4 file you want to convert format
In doing a website, found that video files, such as the Flv,mp4 format can be played locally, but reached the development of the machine, it is not. The player's file address is right, or has not been responding.
After a long experiment, the problem was found to be set with IIS. IIS does not allow video files to be played by default, and the solution is as follows:
Open the IIS Manager on the server, locate the corresponding Web site under the serve
writeshort (width
);//Image width
writeshort (height);//Image Height
out.write (
0x80 | Local color list flag 1
0x00 |
0x00 |
0x07)); Index number of local color list (7+1 of 2)
}
Image (image data)
GIF image data using the LZW compression algorithm, greatly reducing the size of the image data, the specific LZW compression algorithm can be Google, the program implementation section can refer to the source link at the bottom of the article. The following is a write implementat
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 question is to find out which interface change
1. Uploading Test FilesLogin NetEase Hive (NetEase hive is part of NetEase Cloud), in the object storage of a new bucket, click Upload will test files uploaded to the bucket, if the file is larger than 100m can use NetEase cloud provided by the gadget or SDK, Openapi upload, specific use can refer to the use of documents.
2. mp4 File Playback
SRC is the address of the file in the bucket, copy it, change the SRC address.
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_filter_filter method to handle each avpacket,
This article describes how PHP converts a video to MP4 and obtains a video preview image. It involves php video file operations. For more information, see
This article describes how PHP converts a video to MP4 and obtains a video preview image. It involves php video file operations. For more information, see
This example describes how PHP converts a video to MP4
, you must first have a qsv format conversion tool.
On the Internet, we can see that many people are looking for methods to convert qsv to MP4. However, due to the special qsv format, few tools can convert qsv files, if you really want to convert qsv to another format, you can try the quick Video Converter. In the latest version, the software has added the conversion functions of qsv and qlv formats, that is to say, this is the only tool found by xia
Recently, I encountered a problem in the project, that is, mediaelemen in Silverlight can only read videos in WMV format, but I cannot read videos in FLV format, later, I found a lot of information on the Internet and learned a lot about it.
Main Code:
Background:
Private void openbutton_click (Object sender, routedeventargs E) {# region === directly open the stream here and select the file to directly browse the file from the client for playback ====/openfiledialog openfiledialog = new openf
Lite MP4 tool v2.3 is supported by dgindex, but it has not been fully automated. Therefore, this tutorial is written.
When processing the vob and TS video types, it seems that directshowsource can be used directly. It is true that ffdshow can be decoded, but in general, we use dgindex to generate d2v, and then write AVS for processing.
In the lite MP4 tool, click "tool"-> "dgindex"-> "Run dgindex". In thi
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 MP4 file, se
Target to synthesize the sounds in the MP3 into the MP4.Third-party libraries in use: Mp4parser,Muxing Audio/videoThe API and the process is Straight-forward:
You wrap the raw format file into a appropriate track object. h264trackimpl H 264Track = new h264trackimpl (new Span class= "Pl-smi" >filedatasourceimpl ( "Video.h264 aactrackimpl aactrack = new Aactrackimpl (new filedatasourceimpl ( aac
These track object is then adde
I used JSSDK to upload video files (mp4 format, no transcoding, 14 M, Resolution 672 usd× 0000378) to Qiniu Cloud Storage's open space and set a domain name, the purpose is to achieve video playback through the web page, but it is too slow to play on the web page. it takes a long time almost every few seconds. could you tell me this... I used JSSDK to upload video files (mp4 format, no transcoding, 14 M, Re
The specific steps for the server to increase the MIME type mapping setting in MP4 format are: Right-click Computer Management Services and Applications Internet Information Services (IIS) Manager select the IIS Web site that you developed click Add in the upper right corner of the MIME type under IIS options. Enter ". mp4" in the "Extension" box, enter "Application/octet-stream" in the "MIME type" box, an
Win7 system Ifox Video format How to convert MP4 video format:
1, the download of the video file suffix from ". Ifox" to ". mp4" can be played in other players;
2, if the change is still unable to play, it may be that you have hidden the file type extension. Actions are as follows: Find tools-Folder Options-view, uncheck "Hide extensions of known file types";
3, ifox-r
1, the web player can not play the problem
Coding problems. Need is H.264 encoding, not this encoded in some Flash version or OS will not put out video problems, you can use 3GP, MP4 Video Conversion Wizard (Brvideoconverter) transcoding.
2, can not play at the bottom of the problem
MP4 video has metadata, usually at the end of the file, and Flash read this metadata began to play, the solution is to us
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