Create one thumnail: Method 1: you can specify frame number ffmpeg -y -i "/home/video/video_7.mp4" -filter:v select="eq(n,25*12)" -vframes 1 "/home/video/video_7.jpg How to install old version of LibreOffice on CentOS | Free Online Tutorials on CentOS: how to fix error: Having multiple in isn't supported and may not work as expected How to install LibreOffice on CentOS | Free Online Tutorials on How to install old version of LibreOffice on CentOS MPEG-4 ALS encoder implementation (Mentor: Thilo Borgmann) Umair Khan updated and integrated the ALS encoder to fit in the current FFmpeg codebase. He also implemented a missing feature for the ALS decoder that enables floating-point sample decoding. FFmpeg support for MPEG-4 ALS has been improved significantly by Umair's work. Mux & Demux of Mkv, Mp4(non encoding & fast) How to Change mkv Container To mp4 Container 10:14. Andre Patterson 137,758 views. 10:14. BASIC muxing tutorial MKV to AVI/MP4 NO CONVERTING ffmpeg. ?????????????????????????????????? ???????????????mp4?????????????????????????????????????? ???????????? mp4?demux UPDATE: This tutorial is up to date as of February 2015. ffmpeg is a wonderful library for creating video applications or even general purpose utilities. ffmpeg takes care of all the hard work of video processing by doing all the decoding, encoding, muxing and demuxing for you. This can make media applications much simpler to write. ffmpeg -i input.mp4 -profile:v baseline -level 3.0 -s 640x360 -start_number 0 -hls_time 10 -hls_list_size 0 -f hls index.m3u8 Upon running the above command you will see the MP4 video being processed in the terminal which will look similar to the following. The options in the above command to convert MP4 to HLS can be modified to your liking. MP4 file format itself has no support of 'raw ' and 'twos'. These identifiers are defined in Motion JPEG 2000 file format (15444-3). You need add the JP2 Signature Box at the start of file and add 'mjp2'