FFmpeg Analysis of MPEG2 TS Stream decoding process [2]
5. Get betterWell, the previous foundation is nearly enough. It's a bit like a hand-peeled onion. Let's take a look at the aspect of MPEG ts.Resolution Process
The code behind us is mainly concentrated in [libavformat/mpegts. C]. Grandpa Mao said: concentrated strengthWei Jie, well, let's get started, ant's nest.
Static int mpegts_read_header (avformatcontext * s,Avformatparameters * AP){Mpegtsco
Recently in the study of some of the web players, Videojs\ckplayer\jwplayer and other page players, found that in the video playback, some MP4 format video is not able to play on the side of the cache, read some information online, found that these MP4 format video, " metadata information is not in the first frame
A MP4 conversion tool was also found on one of t
named Transmageddon, which allows you to easily create formats such as mp4, Ogg, and QuickTime. However, if you have a large number of videos that need to be converted, it is easier to use the mencoder program. mencoder supports almost all video formats, and supports a wide range of adjustable parameters and high speed.
First, you need to install the mencoder program:
$ Sudo apt-get install mencoder
View the Video and Audio Encoder supported by your
mode, or transmit video sequence parameters and frame image parameters through RTP packets;? The SDP Message format is not compatible: Because the isma1.0 and isma2.0 video RTP packaging methods are different, the SDP message bearer formats and content are different, for example, the definition parameters of the intertwined mode cannot appear in the SDP message. The video sequence parameters and frame image parameters are transmitted through SDP and some special fields are added;? File Storage
You can use the File class to batch Delete duplicate files in a File, for example, haokan (22.16.mp4, haokan (32.16.mp4,
1 public class HH {2 public static void main (String [] args) {3 String s = "he is a boy"; 4 int result = s. indexOf ("boy ");I am using the indexOf () method;5 if (result> = 0) {6 System. out. println ("boy is part of he is a boy"); 7} else {8 System. out. println ("boy is not part of he
You are welcome to reprint it. Please indicate the author and its source. Author: little hedgehog
PS:You are welcome to refer to the errors in the text so that they can be corrected with me.PS2:This article is intended for players who have a certain degree of Video Production basics. It is not intended for beginners. At least we must understand the use of AVS; otherwise, we do not need to look down.PS3:Although the title of this article is 720xlarge, it is also applicable to the production of A
A simple function to get the PMT PID from the specified mpeg2/ts file,
Note the comments in the code.
#define MAKE_PID (P) (((p[0][HTML] View Plain copy ushortgetpmtpid (constchar*filename) { #define TSPACKET_SIZE188 ushort pid; ucharbuf[TSPACKET_SIZE]; uchar*p=buf; FILE*fp; fp=fopen (filename, "RB"); if (fp==null) { fprintf (stderr, "failedtoopenthefile%s:%s\n", filename,strerror (errno)); return0; } while (fread (BUF,NBSP;1,NBSP;TSPACKET_S
A simple function to get the PCR PID from the specified mpeg2/ts file,
The head structure of the PMT has a PCR PID, we first get the PMT PID, and then analyze the PMT package, you can get the PCR pid.
Implementation of the GETPMTPID function see: http://blog.csdn.net/myaccella/article/details/6982596
Make_pid:
#define MAKE_PID (P) (((p[0]
[HTML] View Plain copy ushortgetpcrpid (constchar*filename) { #define TSPACKET_SIZE188 ushortpid, pmtpid,pcrpid=0
First, Introduction
The MPEG2 system is used for AV synchronization and time labels for system clock recovery in the 3 levels of es,pes and TS respectively.
On the TS layer, the TS header information contains the program Clock Reference PCR (Programme clock Reference),
It is used to recover the system timing clock STC, which is consistent with the encoder end.
In the PES layer, the PES header information contains a timestamp of PTS (Presentation time
*************************************************************************************************************** ************Easywave Time: 2014.10.31Category: Linux applications-mp4 video recording library Mp4v2 transplant Experience and introduction statement: Reproduced, please keep the linkNote: If there is an error, please correct me. These are the journal articles I studied ...**********************************************************************
It's hard. After one months of ...
Purpose: From an AVI transcoding to Mp4,avi (Video encoder: MPEG4, audio codec: MPEG2 audio,), MP4 (Video encoder: H264/AVC, Audio encoder: MPEG2 audio)
As a result, the basic can be, the video has a little problem, audio can be. Here first put the code here, then slowly improve it, t
*************************************************************************************************************** ************Easywave Time: 2014.10.31Category: Linux application-mp4 video recording library mp4v2 transplant experience and brief introduction statement: Reprint. Please keep the linkNote: If there is an error, please correct me.These are the journal articles I studied ...*********************************************************************
RM format How to convert MP4?RM to MP4 format Converter list
RM mp4 Format Converter Rank one: MP4/RM conversion specialist
The MP4/RM conversion expert has a comprehensive focus on professional conversion tools optimized for avi/mpeg4/3gp/3g2/
using MP4V2 to synthesize h264+aac mp4 files
Recording program to add new features: Record CMMB TV shows, our cards are sent out of the RTP stream (H264 video and AAC audio), the recording program to do the work is:
(1) Receiving and parsing RTP packets, separating out H264 and AAC data streams;
(2) H264 video and AAC audio are encapsulated in some format and finally saved as a file for viewing by the user.
RTMP Request General format is rtmp://domain name/app/file such as Rtmp://fantefei.blog.51cto.com/fantefei/3.mp4 so it can play, but rtmp:// Fantefei.blog.51cto.com/fantefei/mp4:v/abc/3.mp4 or RTMP://FANTEFEI.BLOG.51CTO.COM/FANTEFEI/MP4:/V/ABC/3. What format is MP4?In genera
One, H264 video encoded into MP4 file
See: H264 video encoded into MP4 file
See: Compilation of Mp4v2 under VS2010 and its use in projectsRecently do the project needs to be H264 file encapsulated as MP4 file, from the Internet to find the MP4V2 library, downloaded down do not know where to start, the official website https://code.google.com/p/mp4v2/in the comp
FLV MP4 makes it easy to transfer downloaded video from the network to mobile hardware, MP4, IPod, IPhone, PSP, PSV, PS3, ipad, and so on. Given the need for FLV MP4 to be compatible with mobile devices, in the FLV MP4 process, conversion speed, conversion quality and good compatibility on mobile hardware are undoubted
The recent need to encode H264 video into MP4 format. Research, one method is to use the FFmpeg library, you can first decode the H264 file, and then encode the generation of MP4 files, but this method is less efficient, 10M video may take a few seconds to complete. Another way is to encapsulate the H264 package directly into the MP4 format according to the
Upload the FLV or MP4 file to the server and enter the correct address the HTTP protocol is used to access the 404 error that always appears "cannot find the page"? This means that the MP4 format file is not recognized by the server, which is why the corresponding MIME type is not set in IIS. So how do you set MIME types?If you open the MP4 file, you need to righ
Objectivethe MP4 video file Encapsulation format is based on the QuickTime container format definition, so referencing the QuickTime format definition is helpful for understanding the MP4 file format. The MP4 file format is a very open container that can be used to describe almost all media structures, and the media descriptions in the
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