FFmpeg FU-A packet description

+-+-+ | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | FU indicator | < = > +-+ | F | NRI

2022-06-03 Internet Technology 我要分享

How to print Audio and Video Information with C language and ffmpeg

Today, I will talk to you about how to print audio and video information with C language and ffmpeg. Many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article. 1. What can you get from this article? through this exercise:

2022-06-02 Development 我要分享

Analysis and use of FFmpeg AVPacket

Knowledge preparation AVPacket: store compressed data (video corresponds to H.264 stream data, audio corresponds to AAC/MP3 stream data). To put it simply, it is to carry a NAL video unit or multiple NAL audio units. AVPacket saves a NAL list

2022-06-02 Internet Technology 我要分享

Analysis of FFmpeg rtsp playback Code

When playing rtsp url, it will judge whether to call ff_rtsp_demuxer to read network data according to whether there is rtsp in url. AVInputFormatff_rtsp_demuxer = {. Name = "

2022-06-03 Internet Technology 我要分享

FFmpeg PCMA Audio

1) when PCMAPCMA is transmitted in a RTP message, you can clearly see the sign PT = ITU-T G.711 PCMA. It takes up more bandwidth. Audio NAL does not have a start code as a definition 2) mp3ffplay plays mp3 audio FFmpe

2022-06-03 Internet Technology 我要分享

FFmpeg startcode analysis

The starting code is divided into two types: 0x00 0001 and 0x00 0001. There is no starting code in the code stream transmitted through rtp. It is necessary to manually add the starting code to complete a complete NAL video unit, so that a complete image can be parsed and found in H264.

2022-06-03 Internet Technology 我要分享

How to analyze and play FFmpeg H264 bit stream

This article introduces how to carry out FFmpeg H264 code stream analysis and playback, the content is very detailed, interested friends can refer to, hope to be helpful to you. 1) h364_probe function dissection function call avformat_open_in

2022-06-01 Internet Technology 我要分享

Translation of H.264/MPEG-4 Part 10 White Paper (1) Overview

H.264/MPEG-4 Part 10 White Paper Translation (1) Overview of OverviewH.264 1. Introduction: the emergence of digital television and DVD-video has revolutionized radio and television and home entertainment. More and more

2022-06-01 Network Security 我要分享

OPPO self-developed Pantanal system landed, ColorOS 14 with AndesGPT

Thank CTOnews.com netizens Lunliu for the clue delivery! CTOnews.com, November 16, 2023 OPPO developer Conference is currently being held at the Shanghai World Expo Center, live broadcast from CTOnews.com. In today's hair

2023-11-24 IT Information 我要分享

How to use cenc encryption

This article is about how to use cenc encryption. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look. Universal encryption format CENC is an encryption format based on ISO/IEC14496-12. CE

2022-06-03 Development 我要分享

Mysql's internal temporary table

What is an internal temporary watch? Unlike hand-created temporary tables, temporary files may be used during sql execution to store query results, called internal temporary table;, a process that is done automatically by Mysql and cannot be manually intervened by users; these tables or

2022-06-02 Servers 我要分享

Pantanal system capability landed, deeply empowered developers fully embraced the service ecology

On November 16, the 2023 OPPO developer Conference (hereinafter referred to as ODC23) with the theme of "sharing change and sharing wisdom" was held at the Shanghai World Expo Center. OPPO brings new fluid cloud interactions based on Pantanal's intelligent cross-terminal capabilities, and service reminders will be available at the right time.

2023-11-24 IT Information 我要分享

"League of Legends" JDG won the LPL championship again after two years and went to the World Championships as the No. 1 seed.

Thanks to CTOnews.com netizen Yushi for the clue delivery! CTOnews.com reported on September 1 that in today's "League of Legends" 2022 summer finals, JDG beat TES and won 2022 with a score of 3:2.

2023-11-24 IT Information 我要分享

What are the HTML5 document structure and related elements

This article mainly explains "what are the HTML5 document structure and related elements". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn "what are the HTML5 document structure and related elements"! elements of SVG documents

2022-06-01 Development 我要分享

What are the document structure and related elements of SVG in HTML5

What are the document structure and related elements of SVG in HTML5? in view of this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method. Structure-related composition and reuse elements, here is the first for the SVG

2022-06-03 Development 我要分享

How to parse the kernel memory leak caused by FreeBSD ELF header

This article introduces how to parse the kernel memory leak caused by FreeBSD ELF header, the content is very detailed, interested friends can refer to, hope to be helpful to you. In the FreeBSD-SA-18:12 security bulletin, FreeBSD

2022-05-31 Network Security 我要分享

How to dock OpenStack and Tungsten Fabric

This article mainly introduces how to dock OpenStack and Tungsten Fabric, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it. OpenSt

2022-06-01 Internet Technology 我要分享

How to use Python to collect form data of the whole station

This article mainly explains "how to use Python to collect the whole site form data", the content of the article is simple and clear, easy to learn and understand, the following please follow the editor's ideas slowly in depth, together to study and learn "how to use Python to collect the whole site form data"! Target analysis is large

2022-06-02 Development 我要分享

Percentage points of technical practical information sharing, ten thousand words in-depth interpretation of machine translation

In the article "how machine translation is made (part 1)", we review the development history of machine translation. In this article, we will share the theoretical algorithm and technical practice of machine translation system, and explain how neural machine translation is formed. After reading this article, you will know: nervous machine

2022-06-02 Internet Technology 我要分享

The fundamentals of WSFC log analysis

In the previous blog, Lao Wang introduced the arbitration in WSFC, which is mainly used to maintain the continuous availability of the cluster and some ideas that should be dealt with in the event of downtime. In the following article, Lao Wang will introduce the log analysis in WSFC. In many cases, when there are problems, or when you need to optimize performance, you need to

2022-06-02 Servers 我要分享