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Description: 一种非常好的音频压缩算法，可实现对不同采样率和不同码流的压缩。-a very good audio compression algorithm can be realized on different sampling rates and different bitstream compression.
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Size: 4484096 |
Author: 风信标 |
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Description: 基于OFDM体制的调制和解调程序。
对码流进行OFDM方式的调制和解调。-system based on OFDM modulation and demodulation process. Bitstream right way for the OFDM modulation and demodulation.
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Size: 2048 |
Author: 孙剑 |
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Description: 这是一个效果很好的mpec4编解码源码，并提供测试李子。码流比较低，但用cpu资源比较少。-effect of this is a very good source mpec4 codecs, and provide testing plums. Bitstream is relatively low, but with fewer resources cpu.
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Size: 510976 |
Author: 天高云淡 |
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Description: 这是一个效果不错的mpec4编码源代码，并提供测试方法。码流不好，用cpu资源也不多。-This is a good result mpec4 source code, and provide testing methods. Bitstream well, with not many resources cpu.
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Size: 305152 |
Author: 尹正川 |
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Description: mpeg2 解码器程序，一个通用的库，能解出DVB码流-mpeg2 decoder procedure, a common library, which can come up with DVB bitstream
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Size: 317440 |
Author: jeo1234 |
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Description: 这也是本人参与实验室项目编写的实现dvb-mpeg2码流解复用中和码流相关的源代码，用c实现，这部分是和mcu配合的那一部分工作程序，绝对原创-This is my participation in the project prepared by the laboratory to achieve DVB-mpeg2 stream demultiplexing and in bitstream relevant source code, using c realized, and this is part of mcu with that part of the procedure, absolute originality
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Size: 18432 |
Author: 卢国勋 |
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Description: 本系统采用MEPG_4的SVP（Simple Visual Profile）视频解码。视频序列全部为矩形。所以不存在任意形状编码。视频序列按照视频对象层VOL（Video Object Layer）、视频对象平台VOP（Video Object Plane）、宏块MB（Macro Block）视顺序变成一串码流-MEPG_4 the SVP (Simple Visual Profile) Video decoder. All of the video sequence of rectangular. There is no arbitrary shape coding. Video sequences with video object layer VOL (Video Object Layer), Video Object platform VOP (Video Object Plane) Macroblock MB (Macro Block) as the sequence into a series of bitstream
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Size: 134144 |
Author: 蒋松云 |
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Description: Sklmp4 consists in portable C++ sources of a library capable of encoding
and decoding MPEG-4 video bitstream. Bitstreams conforming to ISO/IEC 14496-2
(version 2) Advance Simple Profile are fully supported by the
decoder. Partial support for MPEG-1/2 bitstreams (ISO/IEC 13818-2)
is also supplied.-Sklmp4 consists in portable C sources of a l ibrary capable of encoding and decoding MPEG-4 video bitstream. Bitstreams conforming to ISO/IEC 14496-2 (version 2) Advance Simple Profil e are fully supported by the decoder. Partial su 17 for MPEG-1/2 bitstreams (ISO/IEC 13818- 2) is also supplied.
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Size: 487424 |
Author: eckuk |
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Description: 利用ffmpeg读取mp4容器文件里面的视频track的内容，是ffmpeg在windows下面的一个挺好的示范（有点自夸），它是我给一个项目（匿名）提供的关于mp4的读写、解码、传输（RTP）、和码流识别的所有api的一部分，大概占1/8，就是指读那一部分了。-using ffmpeg containers then no time to read the documents inside the video track, ffmpeg is below the windows of a very good model (somewhat trying) It is a project to the (anonymous) then no time on reading and writing, decoding, transmission (RTP). Recognition and bitstream all part of the api, roughly 1/8, this means that part of the time.
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Size: 2143232 |
Author: goggle |
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Description: 利用ffmpeg保存视频到mp4容器文件里面，是ffmpeg在windows下面的一个挺好的示范（有点自夸），它是我给一个项目（匿名）提供的关于mp4的读写、解码、传输（RTP）、和码流识别的所有api的一部分，大概占1/8，就是指写那一部分了。同时，前面上传过一个读的工程，可以搜搜看。-using ffmpeg then no time to preserve video file container, ffmpeg is below the windows of a very good model (somewhat trying) It is a project to the (anonymous) then no time on reading and writing, decoding, transmission (RTP). Recognition and bitstream all part of the api, roughly 1/8, this means that part of the writing. Meanwhile, over the previous upload a reading project, Soso can see.
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Size: 2143232 |
Author: goggle |
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Description: AVS的测试码流文件，大家一起来用吧
AVS听说过吧？用OPENAVS软件就可以看了
赶紧下吧，-AVS test bitstream paper, we used up a AVS heard of it? OPENAVS use software can be read quickly under the bar,
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Size: 47733760 |
Author: tank |
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Description: 与标准ISO/IEC 13818-2 DIS [1] (MPEG-2).
对应的Mpeg2编码源码，包括详细的使用说明文档和测试文件。 This is the second public release of our MPEG-2 encoder. It converts an ordered set of uncompressed input pictures into a compressed bitstream
compliant with ISO/IEC 13818-2 DIS [1] (MPEG-2).-With the standard ISO/IEC 13818-2 DIS [1] (MPEG-2). Corresponding source mpeg2 encoding, including the use of detailed documentation and test files. This is the second public release of our MPEG-2 encoder. It converts an ordered set of uncompressed input pictures into a compressed bitstream compliant with ISO/IEC 13818-2 DIS [1] (MPEG-2).
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Size: 141312 |
Author: lixuemin |
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Description: 现在关于h.264的源码很多，如jm，x264，ffmpeg等。在linux里编译测试过,用来解x264的码流相当不错-Now on a lot of h.264 source, such as jm, x264, ffmpeg and so on. Compiler in linux where tested for the solution of Bitstream x264 pretty good
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Size: 2706432 |
Author: 小狐 |
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Description: H.264码流结构.一个不错的说明文档网络传输时需要了解的-H.264 bitstream structure. A good description of the document need to be aware of when the network transmission of
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Size: 232448 |
Author: LINHEZHI |
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Description: h.264的码流结构，详细说明了h.264的输出码流结构-h.264 Bitstream structure, a detailed description of the output h.264 bitstream structure
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Size: 252928 |
Author: tracy |
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Description: 将ITUG.729A的源码更改。
可以将G.729A的码流解成PCM格式文件。
或将PCM格式文件编码成G.729A的码流解成。
readme.txt 有使用说明。-ITUG.729A the source will change. G.729A can be the solution into a PCM bitstream format. Or to be PCM format G.729A coding into the bit stream into a solution. readme.txt has use.
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Size: 4260864 |
Author: zhoukejun |
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Description: Proposed SMPTE Standard for Television: VC-1 Compressed
Video Bitstream Format and Decoding Proce-Proposed SMPTE Standard for Television: VC-1 CompressedVideo Bitstream Format and Decoding Proce
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Size: 2262016 |
Author: dengqingeng |
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Description: mpeg2vidcodec_v12 This directory contains our implementation of an ISO/IEC DIS 13818-2
codec. It converts uncompressed video frames into MPEG-1 and MPEG-2
video coded bitstream sequences, and vice versa.-mpeg2vidcodec_v12 This directory contains our implementation of an ISO/IEC DIS 13818-2codec. It converts uncompressed video frames into MPEG-1 and MPEG-2video coded bitstream sequences, and vice versa.
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Size: 287744 |
Author: wuzhuohua |
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Description: OFDM程序，这么安排矩阵的目的是为了构造共轭对称矩阵
共轭对称矩阵的特点是 在ifft/fft的矢量上 N点的矢量
在0，N/2点必须是实数 一般选为0
1至N/2点 与 （N/2）+1至N-1点关于N/2共轭对称- BPSK simulation using a carrier cosine wave with ISI
clc
close all
clear all
figure(1)
n=160
for i=1:n
data(i)= 2*round(rand)-1
end
create modulated BPSK signal
first expand the bit stream
exdata=[]
for i=1:length(data)
for rep=1:5
exdata= [exdata data(i)]
end
end
ts=.1
t=1:ts:80.9
carrier=cos(pi*t)
multiply expanded bitstream by cosine wave with carrier frequency
this is the BPSK that is to be transmitted over the channel
bpsk=carrier.*exdata
bpsk=[bpsk(length(bpsk)-1) bpsk(length(bpsk)) bpsk]
plot(bpsk)
generating the noise
p=rand(1,800)*2*pi
p=rand*2*pi
snr=10
r=sqrt(-1*(1/snr*log(1- rand)))
no = 5*(r.* exp(j*p))
no = (r.* exp(j*p))
value of alpha
al=rand+j*rand
al=1
Spreading channel with the alpha as the variable
for k=5:5:795
for l = 1:5
al=round(rand)+j*round(rand)
rec(k+l)=bpsk(k+l)+al*bpsk(k-5+l)
end
end
rxdata=rec+ no
begin demodulation
first multiply recie
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Size: 6146048 |
Author: 卞敏捷 |
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Description: huffman coding of the bitstream
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Size: 1024 |
Author: sherry |
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