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• Microsoft SmoothStreaming video on Apache ?

  2 juin 2014, par earizon

  I created what I consider to be a valid smooth streaming output using ffmpeg with the smooth streaming muxer and also alternatively through the ismindex utility (included in ffmpeg sources).

  I’m trying to use an standard web server like Apache instead of IIS and its S.S. extensions. The output is segmented content (each fragment is split to is own file) so theoretically this is possible. Now comes my first problem where I’m stuck.

  How can I test the result using for example a Window Phone 8 ?. I tried to open the index.ism url from I.Explorer, but the extension ism and the mime-type (application/vnd.ms-sstr+xml) is not recognized and I.Explorer just dump the xml instead of opening the media player.
  I was waiting for a similar behaviour to that of Android/iOS when the (HLS) index.m3u8 URL is clicked. In this case the browser/OS detects the extension and open the player.

  Thanks in advance for any help, hint or link !

• getting file name from for %%i variable

  19 mars 2015, par nysos3

  I had a script that converts all mkvs in a folder to mp4s using ffmpeg. The downside is that it left the .mkv extension and just added .mp4 (eg : file.mkv.mkp4). I know %~n can be used to get a name without the extension, but I can’t seem to figure it out.

  Here’s my original script :

  for %%i IN (*.mkv) DO (ffmpeg -y -ss 00:00:00 -threads 6 -i "%%i" -vcodec copy -f mp4 -strict experimental -acodec aac -ab 128k -ac 2 "%%i.mp4")

  Here’s what I’ve tried :

  for %%i IN (*.mkv) DO (ffmpeg -y -ss 00:00:00 -threads 6 -i "%~ni.mkv" -vcodec copy -f mp4 -strict experimental -acodec aac -ab 128k -ac 2 "%~ni.mp4")

• How to integrate shared object file of libx264 while using ffmpeg for android ?

  5 août 2014, par user3665376

  I am working with integrating ffmpeg for android .

  Since I needed H.264 encoding I need to integrate libx264 with ffmpeg . Given below are the steps I followed .

  1) Build the latest libx264 using android compiler tool-chain to obtain libx264.so.142 .

  2) Build ffmpeg v 2.3 referring to this with —enable -libx264 option while configuring ffmpeg . The method explained in the blog included some editing in configure file of ffmpeg to generate shared object files with extension format [lib name].so rather than the generating shared object file with extension format [lib name].so.[version] (Since android build system supports files with extension .so only).

  The building process was successful but since the generated .so files (after building ffmpeg) has dynamic dependency with libx264.so.142,I need to package libx264.so.142 also with the android .apk file . But since the above format (.so.142) is not supported with android apk building system I cannot package it with the .apk .

  So I think the only option I have is to make some changes in configure file of ffmpeg to change the dynamic dependency of libx264.so.142 to libx264.so . Am I right ??

  What changes do I need to make to ffmpeg configure file to achieve this ?