problem about aac-Collection of common programming errors

12 years ago
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3 minutes

  • Dominic P
    audio ffmpeg aac
    I’m having problems converting uncompressed video to mp4 format using AAC for the audio. I don’t get any errors, but no audio plays with the video in the output files in Windows Media PLayer (other players handle it fine, but normally WMP doesn’t have an issue with my other MP4’s so I still feel like something’s wrong here). Here is my full command:ffmpeg -i uncompressed.avi -s 426×240 -pix_fmt yuv420p -c:v libx264 -preset:v veryslow -profile:v main -crf:v 27 -movflags +faststart -c:a libfdk_aac

  • user1716057
    ffmpeg aac transcode
    i am trying to use ffmpeg as a live transcoder to transcode tv channels from udp input to rtmp output to a wowza server. i have 2 kinds of input channels in 1st kind the input audio is mp2 and in the second kind the input audio is acc_latm.my problem is when i transcode the mp2 channels everything is fine but when i try to transcode the aac channel the audio is muted after few hours. but the video is fine.the output codecs are : libx264 for video and faac or fdk-aac for audio output i tried both

  • wizlog
    ubuntu video ffmpeg cross-platform aac
    Following is the copy of my config.log file->http://pastebin.com/embed_js.php?i=UyTBTTZvFollowing is copy of configure file->http://pastebin.com/embed_js.php?i=2c15zppNAdditionally: As of now I am trying to cross-compile ffmpeg on ubuntu,But If I just compile it for linux..The same command doesnt gives any error and executes smoothly and then I am able to get ffmpeg with aacplus support for my linux machine, But why the problem is coming when I am cross compiling it.Another thing as aacplus is n

  • user1503606
    ffmpeg aac
    I am trying to install ffmpeg on centos following this tutorial.http://ffmpeg.org/trac/ffmpeg/wiki/CentosCompilationGuidebut when i run.cd ~/ffmpeg_sources git clone –depth 1 git://github.com/mstorsjo/fdk-aac.git cd fdk-aac autoreconf -fiv ./configure –prefix=”$HOME/ffmpeg_build” –disable-shared make make install make distcleanI get the following error.cd . && /bin/sh /root/ffmpeg_sources/fdk-aac/missing –run automake-1.9 –foreign Makefile.am: C objects in subdir but `AM_PROG_CC_C_O

  • thewinchester
    ubuntu ffmpeg video-conversion aac
    Ok, this one has me scratching my head – and being a n00b isn’t helping.In short, I had a script which I had perfected to covert MKV video to MP4.However, my Ubuntu 10.10 box bit the dust and installed 11.04.However, my script is now having problems with the following line:ffmpeg -i “${title}”.ac3 -acodec libfaac -ab 576k “${title}”.aacWhen it reaches the relevant stage in the script, it returns the error:Unknown encoder ‘libfaac’I have tried swapping libfaac for aac, which seems to be installed

  • bdls
    android audio aac m4a
    As I understand it, Android will only play AAC format audio if it’s encoded as MPEG-4 or 3GPP.I’m able to play AAC audio encoded as M4A when it’s local to the app, but it fails when obtaining it from a server.The following works, as the m4a file is held locally in the res/raw directory.MediaPlayer mp = MediaPlayer.create(this, R.raw.*file*); mp.start();The following doesn’t work. (But does with MP3’s).Uri uri = Uri.parse(“http://*example.com*/blah.m4a”); MediaPlayer mp = MediaPlayer.create(this,

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