{"id":4933,"date":"2014-03-30T17:08:59","date_gmt":"2014-03-30T17:08:59","guid":{"rendered":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-aac-collection-of-common-programming-errors\/"},"modified":"2014-03-30T17:08:59","modified_gmt":"2014-03-30T17:08:59","slug":"problem-about-aac-collection-of-common-programming-errors","status":"publish","type":"post","link":"https:\/\/unknownerror.org\/index.php\/2014\/03\/30\/problem-about-aac-collection-of-common-programming-errors\/","title":{"rendered":"problem about aac-Collection of common programming errors"},"content":{"rendered":"<ul>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/636bec3398ab7aa3d5c6eeaee1a1350a?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nDominic P<br \/>\naudio ffmpeg aac<br \/>\nI&#8217;m having problems converting uncompressed video to mp4 format using AAC for the audio. I don&#8217;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&#8217;t have an issue with my other MP4&#8217;s so I still feel like something&#8217;s wrong here). Here is my full command:ffmpeg -i uncompressed.avi -s 426&#215;240 -pix_fmt yuv420p -c:v libx264 -preset:v veryslow -profile:v main -crf:v 27 -movflags +faststart -c:a libfdk_aac<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/31aa0a3091444305daf64c4273bef0ba?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nuser1716057<br \/>\nffmpeg aac transcode<br \/>\ni 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<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/eb1a39c4be113408fc0f497eaf324275?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nwizlog<br \/>\nubuntu video ffmpeg cross-platform aac<br \/>\nFollowing is the copy of my config.log file-&gt;http:\/\/pastebin.com\/embed_js.php?i=UyTBTTZvFollowing is copy of configure file-&gt;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<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/eb6266ced84577da07067ea2c1e1c7ea?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nuser1503606<br \/>\nffmpeg aac<br \/>\nI 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 &#8211;depth 1 git:\/\/github.com\/mstorsjo\/fdk-aac.git cd fdk-aac autoreconf -fiv .\/configure &#8211;prefix=&#8221;$HOME\/ffmpeg_build&#8221; &#8211;disable-shared make make install make distcleanI get the following error.cd . &amp;&amp; \/bin\/sh \/root\/ffmpeg_sources\/fdk-aac\/missing &#8211;run automake-1.9 &#8211;foreign Makefile.am: C objects in subdir but `AM_PROG_CC_C_O<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/1ed9aa8a697438c1960e34037d0b5687?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nthewinchester<br \/>\nubuntu ffmpeg video-conversion aac<br \/>\nOk, this one has me scratching my head &#8211; and being a n00b isn&#8217;t helping.In short, I had a script which I had perfected to covert MKV video to MP4.However, my Ubuntu 10.10 box bit the dust and installed 11.04.However, my script is now having problems with the following line:ffmpeg -i &#8220;${title}&#8221;.ac3 -acodec libfaac -ab 576k &#8220;${title}&#8221;.aacWhen it reaches the relevant stage in the script, it returns the error:Unknown encoder &#8216;libfaac&#8217;I have tried swapping libfaac for aac, which seems to be installed<\/li>\n<li><img decoding=\"async\" src=\"http:\/\/www.gravatar.com\/avatar\/64ce16e4d19accae8b1ca7b60b3cb79c?s=32&amp;d=identicon&amp;r=PG\" \/><br \/>\nbdls<br \/>\nandroid audio aac m4a<br \/>\nAs I understand it, Android will only play AAC format audio if it&#8217;s encoded as MPEG-4 or 3GPP.I&#8217;m able to play AAC audio encoded as M4A when it&#8217;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&#8217;t work. (But does with MP3&#8217;s).Uri uri = Uri.parse(&#8220;http:\/\/*example.com*\/blah.m4a&#8221;); MediaPlayer mp = MediaPlayer.create(this,<\/li>\n<\/ul>\n<p>Web site is in building<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dominic P audio ffmpeg aac I&#8217;m having problems converting uncompressed video to mp4 format using AAC for the audio. I don&#8217;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&#8217;t have an issue with my other MP4&#8217;s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4933","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/comments?post=4933"}],"version-history":[{"count":0,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/posts\/4933\/revisions"}],"wp:attachment":[{"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/media?parent=4933"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/categories?post=4933"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unknownerror.org\/index.php\/wp-json\/wp\/v2\/tags?post=4933"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}