= p_input-> pf_demux (p_input );
}
2. In the following functions:
Separates access, Demux, and name strings;
Use the module_need function to find the acess pointer Module Based on the isolated access string;
Find the Demux pointer module by using the module_need function based on the separated Demux string;
Static int initthread (input_thread_t * p_input)
/IP to this file individually, one node per line. By calling bin/start-agents.sh and bin/stop-agents.sh, you can manage agents startup and shutdown in batches. If you encounter a situation where the agent cannot be shut down gracefully, an available temporary workaround is to modify the KILL-1 in the Chukwa script for each node to kill-9. Collector is also a similar control method.
Basic command Introduction
There are a lot of executable files in the bin directory. Here are just a few of the doc
This is a reprint of the article, but did not find the source, so if the author saw this article, please contact me, I will follow your wishes or delete, or attach your original link! 0x00 Front-facing informationVLC is a very large project, I start with its architecture and process analysis, involving a few very fine concepts on the aside, later detailed analysis.0X01 source Structure (Android Java-related temporary analysis)# build-android-arm-linux-androideabi/: Third-party libraries. # modul
In the previous article we built the environment and compiled the required FFmpeg library, this article discusses how to use the API functions provided by FFMPEG for the Solution Encapsulation (DEMUX) process of multimedia files. Before we explain, we need to understand some basic knowledge of multimedia files, prawns please drift over.
Container format: Whether it is audio files or video format files, is a multimedia container, that is, cont
In the previous article we built the environment and compiled the required FFmpeg Library, this article discusses how to use the API functions provided by FFmpeg for the Solution Encapsulation (DEMUX) process of multimedia files. Before we explain, we need to understand some basic knowledge of multimedia files, prawns please drift over.
Container format: Whether it is an audio file or a video format file, is a multimedia container, that is, conta
In general, playing a audio and video is divided into 4 steps 1, Access Access 2, Demux 3, decode decoding 4, output access : Access
Can be understood as receiving, acquiring, and obtaining data resources, including resolving access sources (URLs),Use HTTP protocol, RTSP protocol, FTP protocol, establish connection, get data. Demux: Solution multiplexing
It's the separation of audio and video that usually f
some way during playback.Streaming/saving settings will be more convenientFor example, test. Ts is cyclically played and transmitted to port 1234 on port 224.1.1.1 in RTP mode. The video is displayed at the same time.Vlc.exe test. Ts-loop: sout = # duplicate {DST = STD {access = RTP, MUX = ts, DST = 224.1.1.1: 1234}, DST = display}For example, if you receive UDP port 888, all the data is saved to c: \ dump. Ts.Vlc.exe UDP: // @ 888: Demux = dump: dem
transmit videos to external devices in some way during playback.Streaming/saving settings will be more convenientFor example, test. Ts is cyclically played and transmitted to port 1234 on port 224.1.1.1 in RTP mode. The video is displayed at the same time.Vlc.exe test. Ts-loop: sout = # duplicate {DST = STD {access = RTP, MUX = ts, DST = 224.1.1.1: 1234}, DST = display}For example, if you receive UDP port 888, all the data is saved to c: \ dump. Ts.Vlc.exe UDP: // @ 888:
and transmitted to port 1234 on port 224.1.1.1 in RTP mode. The video is displayed at the same time.Vlc.exe test. Ts-loop: sout = # duplicate {DST = STD {access = RTP, MUX = ts, DST = 224.1.1.1: 1234}, DST = display}For example, if you receive UDP port 888, all the data is saved to c: \ dump. Ts.Vlc.exe UDP: // @ 888: Demux = dump: demuxdump-file = "C: \ dump. Ts"About the video output module in WindowsDirect3d: the effect is worse than DirectX, but
can refer to test.html and README.TXT under the ActiveX folder. The interface of the ActiveX control has the first and second editions, the first version is simple, the function is few, it is no longer recommended to use the second version, more features. Dynamic Call Libvlc.dll
attached: basic flow of video playback
Almost all video players, such as VLC, MPlayer, Xine, including DirectShow, are very similar in the principle and architecture of playing video, and understanding this will have a
FFmpeg's understanding about Timebase
One: FFmpeg's layered structure
When writing this article, let's outline the FFmpeg layering problem, which we summarize in accordance with the most common "transcoding program" and "Camera capture" and "player" three models.
1: transcoding
transcoding basic Flow: FLV Format Data-->H264/AAC data-->YUV/PCM data-->H264/AAC data-->mp4 format data.
A: We call the FLV format data or the MP4 format data This layer is called the MUX/
It took me three weeks to solve this problem. When the player of the current product solves the real file with a high resolution and a high bit rate, half of the audio playback will be disconnected, and a small buffer data will be lost, and then continue. The breaking frequency is proportional to the bit rate.
Since there is a problem with the audio, of course we should first start to check the audio, so from Demux, to decode, and then to PCM render
application-level protocol that controls the transmission of real-time data. RTSP provides an extensible framework for real-time data, such as controlled audio and video, and on-demand video. Data sources include on-site data and stored in editing. This protocol is used to control multiple data transmission connections. It provides a channel for selection of transmission channels, such as UDP, multicast UDP, and TCP, and provides a method for choosing the RTP-based transmission mechanism.
Gene
the bottom of the article source), and then add some straightforward explanation, so that everyone can better understand.The following begins the FFmpeg learning Journey:1, many people do not know how to read "FFmpeg". It reads "EF EF em Peg"What is the role of 2,ffmpeg?Answer: The video file encoding, transcoding, playback, editing, plus subtitles can be used to ffmpeg, the following is a detailed explanation of the official website:2.1, "FFmpeg is the leading multimedia framework, able to dec
creates a random (sometimes) pads by its random type (sometimes) pads template, you can know that signal was created by binding a signal processor (handler pads) to the element. The following code demonstrates how to do this: The sink pads called ' sink ', the rest of the pads are in ' sleep ', and it is obvious that this is pads "sometimes exists" feature. Pads will be based on the type of ogg file you are playing, which is especially important when you are ready to create a dynamic pipeline,
achieved. Practice has proved that the load of multiple collector is almost average.Demux and archiveThe data stored in the cluster is analyzed by map/reduce jobs. In the map/reduce stage, chukwa provides two built-in job types: demux and archive tasks.Demux jobs classify, sort, and deduplicate data. In the agent section, we mention the data type (DataType ?) Concept. data written to the cluster by collector has its own type. during the execution of
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FFmpeg is a powerful multimedia codec framework. It must have basic multi-media knowledge before in-depth analysis of its source code. Otherwise, its source code will be very obscure. This article will introduce some basic multimedia content, mainly to prepare for the study of FFMPEG source code, such as some codec parts. Only by truly understanding the basic process of multimedia processing and studying FFMPEG source code can we get twice the result w
FFmpeg is a powerful multimedia codec framework. It must have basic multimedia knowledge before in-depth analysis of its source code. Otherwise, its source code will be very obscure. This article will introduce some basic multimedia content, mainly to prepare for the study of FFMPEG source code, such as some codec parts. Only by truly understanding the basic process of multimedia processing and studying FFMPEG source code can we get twice the result with half the effort.
Next we will analyze the
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