aac encoder

Introduction to Android Multimedia developmentTransferred from: http://blog.csdn.net/reiliu/article/details/9060557First, multimedia architectureBased on the opencore of the third-party PacketVideo company, it supports all common audio/video/Still image formats including: MPEG4, H, MP3, AAC, AMR, JPG, PNG, GIF, etc. The function is divided into two parts, one is the audio/video playback (PlayBack), and the second is the record of the audio and video (

04-04 16:55:57.099 28015-28195/com.rockylearnstorock.testcamera D/mediahelper:{csd-1=java.nio.bytearraybuffer[position=0,limit=8,capacity=8], MIME=VIDEO/AVC, frame-rate=30, rotation-degrees=270, height=144, width=176, max-input-size=5755, durationus=21107833, csd-0= JAVA.NIO.BYTEARRAYBUFFER[POSITION=0,LIMIT=20,CAPACITY=20]}04-04 16:55:57.106 28015-28195/com.rockylearnstorock.testcamera D/mediahelper:{mime=audio/mpeg, durationus=256835918, encoder-dela

-demuxer=rawvideo \\--enable-muxer=mp4 \--enable-muxer=mpegts \--enable-muxer=pcm_s16le \--enable-muxer=rawvideo \\--ENABLE-DECODER=AMRNB \--ENABLE-DECODER=AMRWB \--enable-decoder=h264 \--ENABLE-DECODER=MPEG4 \--enable-decoder=h263 \--enable-decoder=h263p \--enable-decoder=mp3 \--enable-decoder=pcm_s16le \--ENABLE-DECODER=AAC \--enable-decoder=rawvideo \\--ENABLE-ENCODER=LIBFDK_AAC \--enable-

resolution films follow the above method and so on. Complete the above work screen width and height is fixed, because the addition of the black Edge also easy to compress subtitles, so that subtitles will not block the screen. Second, audio settings As shown in Figure 5: The audio format is selected as He-aac,iphone and can be decoded by hardware. The encoder uses Nero

format conversion methods:Conversion Software: foobar2000 + oggenc external EncoderThere are many ways to convert the Ogg format, but the simplest method is to use the foobar2000 + oggenc external encoder. Foobar2000 is very popular nowadays. It is a WindowsApsaravideo player pro. Not only is the sound quality excellent, but also has powerful functions. Foobar2000 supports WAV, AIFF, VOC, AU, SND, and Ogg.Vorbis, MPC, MP2, MP3, and other music format

[Project 1 live broadcast]☞2. Pull live streams and broadcast ProjectsI. Introduction to video technology 1. Video is structured data. Data is transmitted during live broadcasting, which is a small unit of video. Video = image + audio The original image data in the video is usually compressed in H.264 encoding format. Audio sample data is usually compressed in AAC encoding format. 2. Real-Time Video Transmission Video is structured data, and live

. Cd ~ /FFMPEG-Source Wget http://downloads.sourceforge.net/project/lame/lame/3.99/lame-3.99.5.tar.gz Tar xzvf lame-3.99.5.tar.gz CD lame-3.99.5 ./Configure -- disable-shared -- enable-NASM Make # Make install Libogg Required for libtheora and libvorbis. Cd ~ /FFMPEG-Source Wget http://downloads.xiph.org/releases/ogg/libogg-1.3.0.tar.xz Tar jxvf libogg-1.3.0.tar.xz CD libogg-1.3.0 ./Configure -- disable-shared Make # Make install Libtheora Theora video

. Improved the lyrics download function to improve the download success rate; 2. Improved the audio playback engine to further improve performance; 3. correct the problem that the buffer size is too small during playback of the MCM format; 4. Correct the Win98 window overwrite and the disappearance of the main window; 4. correct the problem that multiple program instances may run at the same time; 5. Use the new program icon. ------------------------------------------------------ 3.9.2: [2004-8-

the video cache detector VBV. It is used as the cache between the encoder and the decoder bit stream, you can set it as small as possible or reduce latency without affecting the video quality. 3. If the latency is optimized only, a large number of key frames can be inserted between video frames so that the client can decode the video stream as soon as it receives it. However, if you need to optimize the cumulative latency during transmission, try to

automatically monitored to the encoder -strict strictness and Standard rigor -AIC enables advanced intra-frame coding h263+ -UMV enables infinite motion vector h263+ -deinterlace does not use interleaving method The-interlace forced interleaving method is only valid for MPEG2 and MPEG4. Use this option when your input is interlaced and you want to keep interlaced with minimal image loss. The alternative is not interwoven, but the loss is greater -psn

Extension:. M4aCodec Type:LosslessDeveloper:Apple Inc.Supports:16 24 BIT, multi channel high frequency audioExtra Details:Stored in MPEG 4 containerStrengths:IPod support, fast decoding, versatile ID TaggingWeaknesses:Limited support outside of iPod/iTunesID Tagging:Quicktime/iTunes Apple lossless (also known as Apple lossless audio codec, ALAC, or apple lossless encoder, ale) a type of audio compression created by

These days have been tossing in Ubuntu under the cross-compiling arm platform FFmpeg, as a standard Windows users, in the Linux toss really laborious, now the compilation process is recorded, mainly x265 compilation too toss people! The cross-compilation environment is self-configuring. Cross-compiling aac:1. Download AAC Source Wget-o fdk-aac.tar.gz https://github.com/mstorsjo/fdk-

-idct_algo algo to set the IDCT algorithm. Available 0 ff_idct_auto default IDCT 1 ff_idct_int 2 ff_idct_simple 3 limit 4 limit 5 ff_idct_ps2 6 limit 7 ff_idct_arm 8 limit 9 limit 10 limit-er N set error residue to N 1 limit default 2 ff_er_compliant 3 ff_er_aggressive 4 ff_er_very_aggressive-EC bit_mask set error masking to bit_mask, bitmask 1 ff_ec_guess_mvs (default = enabled) 2 ff_ec_deblock (default = Enabled )-BF frames uses frames B frames and supports mpeg1, MPEG2, MPEG4-mbd mode macro b

This article for everyone to share the iOS live Class app development process, for your reference, the specific content as follows One. The general process of audio and video processing: data collection → code → transmission (streaming media server) → decoding data → playback display1. Data collection:Video and audio data are collected by the camera and pickup, which is the original data.relating to technology or agreement:Camera: CCD, CMOSPickup: acousto-Electric conversion device (microphone

use.03-10 14:19:55. 441 21706-22256/org. voiddog. ffmpeg D/TAG: stts: 0 ctts: 7507, ctts_index: 0, ctts_count: 69903-10 14:19:55. 441 21706-22256/org. voiddog. ffmpeg D/TAG: stts: 3753 ctts: 7507, ctts_index: 0, ctts_count: 69903-10 14:19:55. 441 21706-22256/org. voiddog. ffmpeg D/TAG: stts: 7507 ctts: 7507, ctts_index: 0, ctts_count: 69903-10 14:19:55. 441 21706-22256/org. voiddog. ffmpeg D/TAG: stts: 11260 ctts: 15015, ctts_index: 1, ctts_count: 69903-10 14:19:55. 441 21706-22256/org. voiddog

-sharedYou can also choose to install the direct commandsudo apt-get install Libopus-dev9.ffmpegInstallation package Download path:http://ffmpeg.org/releases/ffmpeg-2.6.3.tar.bz2# TAR-JXVF FFMPEG-2.6.3.TAR.BZ2# CD opus-1.1#./afa_configure.shAfa_configure.sh content:#!/bin/shEcho $HOMEPath= "$PATH: $HOME/bin" pkg_config_path= "/home/afa/ffmpeg_build/lib/pkgconfig"./configure \--prefix= "$HOME/ffmpeg_build"--extra-cflags= "-i$home/ffmpeg_build/include-dredirect_debug_log"--extra-ldflags= "-l$home/

encoder is used to convert the original audio/video into a suitable stream format file. The server sends the encoded media stream to the client, and the client player decodes and plays the received media data. 1. Encoder The encoder function is to compress and encode the input original audio and video signals. Different streaming media businesses have different

-shared You can also select Direct command installationsudo apt-get install Libopus-dev 9.ffmpegInstall package Download Path:http://ffmpeg.org/releases/ffmpeg-2.6.3.tar.bz2 # TAR-JXVF FFMPEG-2.6.3.TAR.BZ2# CD ffmpeg-2.6.3#./afa_configure.sh Afa_configure.sh content:#!/bin/shEcho $HOMEPath= "$PATH: $HOME/bin" pkg_config_path= "/home/afa/ffmpeg_build/lib/pkgconfig"./configure \--prefix= "$HOME/ffmpeg_build"--extra-cflags= "-i$home/ffmpeg_build/include-dredirect_debug_log"--extra-ldflags= "-l

Ogg is a free and open standard container format maintained by the xiph. Org Foundation. The Ogg format is not restricted by software patents and is designed for efficient streaming media and high-quality digital multimedia processing. Ogg refers to a file format that can be incorporated into a wide range of free and open source code codecs, including sound effects, video, text (like subtitles) and metadata processing. Ogg theora Theora is a premium-free and open-format lossy image compression t

Libmp3lame introduced, so, Ubuntu official repository ffmpeg is not encode MP3 (only encode MP2-MPEG 1 Audio Layer 2). Compiling the ffmpeg is simple, configure, make, and sudo make install is OK. Mainly configure, see what support to open, this time I do is:./configure--prefix=/usr--ENABLE-GPL--enable-postproc--enable-nonfree--enable-pthreads--enable-x11grab-- ENABLE-LIBAMR-NB--enable-libamr-wb--ENABLE-LIBFAAC--enable-libfaad--enable-libmp3lame--enable-libx264-- Enable-libxvid--disable-armv5te