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Description: AT89C51SND1具有以下功能： *MP3硬件解码器
-单独的MP3解码器
-支持48，44.1, 32, 24, 22.05, 16KHz采样频率
-左右声道独立的音量控制(软件使用31级)
-重低音、中音、高音均衡控制(31级)
-重低环绕声效果
-辅助数据输出
-“CRC错误”和“MPEG帧同步”指示-AT89C51SND1 has the following functions : * MP3 decoder hardware-alone MP3 decoder-support 48, 44.1, 32, 24, 22.05, 16KHz sampling frequency-independent channel around the volume control (software 31) - bass, tenor, Treble balance control (31) - weight Surround Sound effect of low-output auxiliary data - "CRC error" and "MPEG frame synchronization "instructions
Platform: |
Size: 234201 |
Author: 刘研 |
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Description: LibMPEG3 decodes several MPEG standards into uncompressed data suitable for editing and playback.
libmpeg3 currently decodes:
MPEG-2 video
MPEG-1 video
mp3 audio
mp2 audio
ac3 audio
MPEG-2 transport streams
MPEG-2 program streams
MPEG-1 program streams
IFO files
The video output can be in many different color models and frame sizes. The audio output can be in twos compliment or floating point. Frame accurate seeking, normally impossible in transport streams, is possible in libmpeg3 through the use of a table of contents. MPEG-2 video in YUV-422 colorspace is decodable. Digital TV broadcasts and DVD s can be edited using libmpeg3. Libmpeg3 takes what is normally a last mile distribution format and makes it editable.
Because of these and other features libmpeg3 is not intended for consumer applications but serves users who are interested in high quality editing and footage acquisition.
-several LibMPEG3 decodes MPEG standards i nto uncompressed data suitable for editing and playback. libmpeg3 currently decodes : MPEG-2 video in MPEG-1 video mp3 audio mp2 audio ac 3 audio MPEG-2 transport streams MPEG-2 progr m streams MPEG-1 program streams IFO files The v ideo output can be in many different color model 's and frame sizes. The audio output can be in twos compliment or floating point. Frame's accurate eeking. normally impossible in transport streams. in libmpeg3 is possible through the use of a tabl e of contents. MPEG-2 video in YUV-422 colorspa ce is decodable. Digital TV broadcasts and DVD's can be edited using libmpeg3. Libmpeg3 takes wh at is normally a last mile a distribution format nd makes it editable. Because of these and other libmpeg3 features is n
Platform: |
Size: 712446 |
Author: robo |
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Description: mp3文件结构格式，里面详述了MP3 文件的三部分：TAG_V2(ID3V2)，Frame, TAG_V1(ID3V1)。-mp3 format structure of the document, which details the MP3 of three parts : TAG_V2 (ID3V2), Frame, TAG_V1 (tagging).
Platform: |
Size: 124848 |
Author: ansen |
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Description: 可用于嵌入式LINUX的网络播放器的源码-for embedded Linux Webcast of FOSS
Platform: |
Size: 375808 |
Author: 柳 |
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Description: AT89C51SND1具有以下功能： *MP3硬件解码器
-单独的MP3解码器
-支持48，44.1, 32, 24, 22.05, 16KHz采样频率
-左右声道独立的音量控制(软件使用31级)
-重低音、中音、高音均衡控制(31级)
-重低环绕声效果
-辅助数据输出
-“CRC错误”和“MPEG帧同步”指示-AT89C51SND1 has the following functions :* MP3 decoder hardware-alone MP3 decoder-support 48, 44.1, 32, 24, 22.05, 16KHz sampling frequency-independent channel around the volume control (software 31)- bass, tenor, Treble balance control (31)- weight Surround Sound effect of low-output auxiliary data- "CRC error" and "MPEG frame synchronization "instructions
Platform: |
Size: 233472 |
Author: 刘研 |
Hits:
Description: LibMPEG3 decodes several MPEG standards into uncompressed data suitable for editing and playback.
libmpeg3 currently decodes:
MPEG-2 video
MPEG-1 video
mp3 audio
mp2 audio
ac3 audio
MPEG-2 transport streams
MPEG-2 program streams
MPEG-1 program streams
IFO files
The video output can be in many different color models and frame sizes. The audio output can be in twos compliment or floating point. Frame accurate seeking, normally impossible in transport streams, is possible in libmpeg3 through the use of a table of contents. MPEG-2 video in YUV-422 colorspace is decodable. Digital TV broadcasts and DVD s can be edited using libmpeg3. Libmpeg3 takes what is normally a last mile distribution format and makes it editable.
Because of these and other features libmpeg3 is not intended for consumer applications but serves users who are interested in high quality editing and footage acquisition.
-several LibMPEG3 decodes MPEG standards i nto uncompressed data suitable for editing and playback. libmpeg3 currently decodes : MPEG-2 video in MPEG-1 video mp3 audio mp2 audio ac 3 audio MPEG-2 transport streams MPEG-2 progr m streams MPEG-1 program streams IFO files The v ideo output can be in many different color model 's and frame sizes. The audio output can be in twos compliment or floating point. Frame's accurate eeking. normally impossible in transport streams. in libmpeg3 is possible through the use of a tabl e of contents. MPEG-2 video in YUV-422 colorspa ce is decodable. Digital TV broadcasts and DVD's can be edited using libmpeg3. Libmpeg3 takes wh at is normally a last mile a distribution format nd makes it editable. Because of these and other libmpeg3 features is n
Platform: |
Size: 712704 |
Author: robo |
Hits:
Description: mp3文件结构格式，里面详述了MP3 文件的三部分：TAG_V2(ID3V2)，Frame, TAG_V1(ID3V1)。-mp3 format structure of the document, which details the MP3 of three parts : TAG_V2 (ID3V2), Frame, TAG_V1 (tagging).
Platform: |
Size: 124928 |
Author: ansen |
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Description: vs1003 MP3解码器的操作代码，很详细的步揍-vs1003 MP3 decoder operation code very detailed step punched
Platform: |
Size: 2048 |
Author: 鲁军波 |
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Description: Mp3文件分析程序，通过分析ID3来确认Mp3文件是否有效，及找到第一个Frame地址。-Mp3 file analysis program, by analyzing the Mp3 file ID3 to confirm whether it is effective, and to find the first Frame Address.
Platform: |
Size: 5120 |
Author: sss |
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Description: mp3帧的结构图，各bit位均有详细说明，帧结构一目了然。-mp3 frame structure, each bit position are detailed description of frame structure at a glance.
Platform: |
Size: 979968 |
Author: quanhaojun |
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Description: 开源mp3解码库mad，许多公司都在用。-decoder.c
decoder.h
frame.c
frame.h
huffman.c
huffman.h
stream.c
stream.h
synth.c
synth.h
Platform: |
Size: 311296 |
Author: hdy |
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Description: C++实现MPEG话音帧头数据读取与时间长度估计。针对包含XING和VBRI头的MPEG audio帧进行读取，然后根据它们估算声音的长度。这里不包括任何的话音audio数据的编码与解码。但是文章对audio frame header进行了非常详细的说明。-C++ to achieve MPEG audio header data read with the estimated length of time. XING and VBRI for containing the first frame of MPEG audio read, and then according to their estimate of the length of the sound. This does not include any audio of the voice encoding and decoding data. But the article on the audio frame header to carry out a very detailed explanation.
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Size: 131072 |
Author: 陈兰 |
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Description: 数字相框(digital photo frame)系统实现的源码，以前公司项目，现在解禁！实现音频MP3,PCM解码，视频MPEG4/H.264的播放，JPEG解码，并包括系统界面设计。-digital photo frame s project source code.
Platform: |
Size: 219136 |
Author: J |
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Description: 一、概述
二、整个MP3文件结构
三、MP3帧格式
1. 帧头格式
2. MAIN_DATA
四、ID3标准
1. ID3V1
2. ID3V2
五、MP3文件实例剖析
六、资料
-I. Introduction II, the whole structure of the three MP3 files, MP3 frame format 1. Header format 2. MAIN_DATA four, ID3 standard 1. ID3V1 2. ID3V2 five, MP3 file analysis of six instances, the data
Platform: |
Size: 30720 |
Author: Tomni liu |
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Description: ：针对MP3 编码方式和帧结构进行分析，利用帧中的比例因子提出了一种压缩域水印算法。算法通过引入帧变化分析步
骤，很好地实现了水印的自适应嵌入。对于不同的系统要求，还可以通过修改门限信噪比的值SNRlim按需进行水印嵌入，使算法
具有更大灵活性。同时在牺牲一定的嵌入空间前提下，实现了水印信息的自同步。实验表明，对于不同风格的音乐，该水印算法
具有很好的不可听性。-In this paper，the encoding method and the frame structure of MP3 are expounded in detail，a watermark algorithm
is proposed based on the scale factor in MP3 frame.By introducing the step of frame altering analysis，the algorithm
can realize that watermarks is embedded adaptively.By modifying threshold SNRlim（the ratio of signal to noise），the algorithm
can meet different requirements of some system，that is what enable the algorithm to have a bigger flexibility.Based on expense
of some embedding positions，the watermark can be embedded with self-synchronization.The experiment results show
this algorithm can get a good audio effect with various types of audio.
Platform: |
Size: 1386496 |
Author: 郑杨 |
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Description: mp3文件格式详解，介绍了mp3 id3标签，mp3帧格式和mp3解码要用到的基本理论，还给出了mp3解码的基本流程-mp3 file format Detailed description is a mp3 the id3 tags, mp3 frame format and mp3 decoder to use the basic theory, we also give the mp3 decoding process
Platform: |
Size: 6335488 |
Author: test |
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Description: 基于STM32VET6的MP3、数码相框设计（转：原理图+代码
-Based the STM32VET6 MP3, digital photo frame design (turn: schematic+ code
Platform: |
Size: 4779008 |
Author: chengong1 |
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Description: android，手机铃声DIY工具，D3V1标签，MP3帧结构，分割MP3文件-android, ringtones DIY tools, D3V1 label, MP3 frame structure, split MP3 files
Platform: |
Size: 168960 |
Author: 十三根胡子 |
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Description: dsp解壓縮
IAR版本
I have written a simple program for the STM32F4 Discovery board that plays a short mp3 file flash memory. For the decoding, the fixed point version of the Helix mp3 decoder is used. The audio output driver is the one used for the Peridiummmm demo, modified to use the peripheral library provided by ST.
The audio driver has two DMA buffers and a callback function that asks a user-provided function to fill one buffer with audio data when it runs out, while the other DMA buffer is streamed to the audio CODEC. This user function decodes one MP3 frame and forwards the raw audio samples to the audio driver. As this is interrupt driven, the main function can still be used for other things.-dsp decompression IAR version I have written a simple program for the STM32F4 Discovery board that plays a short mp3 file flash memory. For the decoding, the fixed point version of the Helix mp3 decoder is used. The audio output driver is the one used for the Peridiummmm demo, modified to use the peripheral library provided by ST. The audio driver has two DMA buffers and a callback function that asks a user-provided function to fill one buffer with audio data when it runs out, while the other DMA buffer is streamed to the audio CODEC. This user function decodes one MP3 frame and forwards the raw audio samples to the audio driver. As this is interrupt driven, the main function can still be used for other things.
Platform: |
Size: 19456 |
Author: 謝博丞 |
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Description: it is mp3 MPEg2 Video Encoder, Only I frames currently encoded. The encoded files can be played using any player i used vlc player.
As usual some
1. Use one test.avi file, preferrable 128 x 128 size, you can download http://support.microsoft.com/kb/119383
2. This is just the initial code, updates are likely to happen.
One can use this code just for initial study purposes, for example bit stream packing, basic of video etc. Will further modify this for P frame encoding and will make a simple Profile.
If you happen to use this code and update for P frames please give the link.
Running:
1. Open main_video_enc.m, use the test file to be encoded.
2. Encoded file will be test.m2v. Play using vlcplayer.
3. Only 15 frames are encoded currently modify the index to increase.
-it is mp3 MPEg2 Video Encoder, Only I frames currently encoded. The encoded files can be played using any player i used vlc player.
As usual some
1. Use one test.avi file, preferrable 128 x 128 size, you can download http://support.microsoft.com/kb/119383
2. This is just the initial code, updates are likely to happen.
One can use this code just for initial study purposes, for example bit stream packing, basic of video etc. Will further modify this for P frame encoding and will make a simple Profile.
If you happen to use this code and update for P frames please give the link.
Running:
1. Open main_video_enc.m, use the test file to be encoded.
2. Encoded file will be test.m2v. Play using vlcplayer.
3. Only 15 frames are encoded currently modify the index to increase.
Platform: |
Size: 857088 |
Author: raushan |
Hits: