to learn FFMPEG, so that you can learn FFMPEG step by step.
0. Background Knowledge
This chapter mainly introduces where FFmpeg is used (only a few of what I know here is actually far more than this ). To put it bluntly, FFmpeg is very important.
Use FFMPEG as the kernel Video Player:
Mplayer, ffplay, shooter player, storm video, kmplayer, QQ video...
Use FF
hierarchical encoding of video Space
Chapter 1 quantification
1. QuantizationQuantization
The process of displaying a larger set with a smaller set
Finite approximation of signal sources
Lossy Process
Application
A/D Conversion
Compression
Quantization Method
Scalar Quantization
Vector Quantization
2. Basic Idea of quantification
Ing an input interval to an integer
Reduce bit of source
"H.264/AVC Video Codec Technology detailed" video tutorial has been in the "CSDN College" on-line, the video details of the background, standard protocol and implementation, and through a practical project in the form of the standard of the resolution and implementation of H. A, Welcome to watch! "The paper came to the end of shallow, I know this matter to preach
Contents:A progress plan review, QA found missingCodeIn the review phase, PM added a review code task after all coding tasks, so the progress plan passed the review. Code review is not a form. The project leader must be deeply affected by poor code. If you do not grasp the code quality, there are many software traps, and the code quality will inevitably be captured.ProgramGreat resistance and delay of the construction period. How can we solve the conf
of research and discussion.
MPEG-1 is used to transmit 1.5Mbps data transmission rate digital storage media motion image and its sound code, after MPEG-1 standard compression, the video data compression rate is 1/100-1/200, the audio compression rate is 1/6.5. MPEG-1 provides an image of 30 frames per second 352*240 resolution, and is close to the quality of the home video format (VHS) tape when appropria
Prednet---Deep predictive coding networks for video prediction and unsupervised learning ICLR 20172017.03.12 Code and video examples can found at: https://coxlab.github.io/prednet/Absrtact: Deep learning techniques based on supervised training have achieved great success, but unsupervised problems remain a difficult problem (learning from the data that has never
"H.264/AVC Video codec technology specific explanation" video tutorial has been in the "CSDN College" on-line, the video details of the background, standard protocol and implementation, and through a practical project in the form of the standard of H. A to analyze and realize, welcome to watch! "The paper is finally light. I know this matter to be preach. " Only
Contents:A progress plan review, QA found missingCodeIn the review phase, PM added a review code task after all coding tasks, so the progress plan passed the review. Code review is not a form. The project leader must be deeply affected by poor code. If you do not grasp the code quality, there are many software traps, and the code quality will inevitably be captured.ProgramGreat resistance and delay of the construction period. How can we solve the conf
);-----------------------------------------------------------------x264 Code:Initialize picture information:x264_picture_t Picin, Picout;X264_picture_init (picin);Set the parameters of the picture information:Picin.i_pts = ts;picin.i_type = x264_type_auto;picin.i_qpplus1 0; PICIN.IMG.I_CSP )? X264_CSP_NV12:CSP; // Special hack for Android。。。。。。。。。。。。。。。。。。。To encode a frame x264:ret = X264_encoder_encode(Enc, nals, nnal, picin, picout);Note: A summary is:(1) I
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