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• How to get convert a avi to mp4 video in order to get a YouTube 1080p HD video ? [closed]

  26 mai 2012, par Swiss12000

  I have an avi video (31568 kbits/s ->video) (1411 kbits/s -> audio).
  The avi video is 7sec long and the size is 24 597KO.

  I'm trying to convert the avi video with ffmpeg to get a lighter mp4 version.

  In the command line, I've entered :

  ffmpeg -i test.avi test.mp4

  However, when I upload the video on YouTube, I can get a 720p quality maximum.

  My question is : how to convert a mp4 in order to get a 1 080p video ?

  Thank you

  edit : Am I missing something in my question. I get negative opinion, if so what can i do in order to improve my question. I'm totaly new in videos encoding. I also did lot of google reasearch about it but i find no specific answer about that issue... So I feel that my question isn't that much bad... :s

• Converting m4a -> mp3 on ASP.NET

  2 décembre 2012, par Killnine

  I currently post mp3s to a site and stream it to users. However, I record in m4a and that doesn't stream unless you use flash or some special html5 implementations.

  I'd like to be able to upload m4as to the site and have it converted to mp3.

  There are a few implementations that wrap ffmpeg for .net, but few have any documentation (FFLIB.NET, FFmpeg.NET, FFMpeg-sharp), especially with non-video formats.

  Does anyone have any ideas about tackling this issue, or maybe some alternatives ? I don't believe my host (Arvixe) supports Python on its ASP.NET packages...

  EDIT : I selected Jorge's answer as, with the comments as further context, it mostly answers my question.

• SOLVED - Compiling FFMPEG on Windows with Cywin and NDK r5

  19 mai 2012, par protectedmember

  This isn't a question - it's an answer for alll of you who have been facing the same problems as I have. I've been trying to compile this thing for a while now and I know of the numerous posts floating around the internet offering help. I have read and tried most of the suggestions and wanted to colate my success into this single post for others to benefit from.

  Since I don't have a blog, I thought it wouldn't hurt to post on here instead.

  I have managed to compile FFMPEG 0.10.3 (Freedom) on Windows 7 (32 bit) using NDK r5 and Cygwin. The steps :

  1 - Download/install Cygwin in the root of your C drive. I'm not going to give instructions on this, it's simple enough and there are plenty of tutorials on this.

  2 - Download NDK r5 from here and extract to the root of your C drive.

  3 - Download FFMPEG 0.10.3 from here and extract to the root of your C drive.

  4 - Open the file 'configure' in the root of the FFMPEG directory in a text editor.

  5 - Comment out lines 2073, 2074 and 2075.

  6 - Below 2075, add the following line :

  TMPDIR=c :/cygwin/tmp

  7 - Download this script (thankyou roman10) and place it inside your FFMPEG root directory. Rename the file to

  build_android.sh

  8 - Open the script in a text editor and edit line 17 to read

  c :/android-ndk-r5

  9 - Click start > run and type "bash" (without the speech marks) and press enter.

  10 - Type the following and press enter :

  cd /cygdrive/c/ffmpeg-0.10.3

  11 - Type the following and press enter :

  ./build_android.sh

  12 - Sit back and wait... libffmpeg.so will soon appear in your "c :\ffmpeg-0.10.3\android\" directory (where is defined in the bottom of the script from roman10's blog). The default architecture is armv7-a.

  The script from roman10's blog will actually compile quite a large shared object (.so) file. The compiler flags can be adjusted to suit your needs in the script from roman10's blog.

  I hope this helps,

  P.