On Thu, Feb 22, 2018, at 9:00 PM, Vittalprasad wrote: > Hi All, > From below link i saw that mp4 container can have h264 as video codec and > opus as audio codec. so i tried both codecs in to mp4 using ffmpeg, but > external player like mplayer, vlc and kmp are failing to decode voice . i.e > while playing mp4 file there is only video no voice. > https://en.wikipedia.org/wiki/Comparison_of_video_container_formats > > Procedure followed using ffmpeg: > 1. From sample mp4 file, i have separated audio(aac codec) and video(h264) > in to different files . > 2. aac trans-coded to opus > 3. tried to merge video and audio(opus) in to single mp4 > > > please let me know > 1. whether ffmpeg support above codecs in single mp4 file or issue with > external player . > > If anyone has mp4 file with h264 and opus codecs please provide me along > with procedure to convert. > > > Thanks & Regards > Vittal Prasad B R
Wrong mailing list. ffmpeg-devel is only for patch submissions and discussions related to the development of FFmpeg. Usage questions involving the FFmpeg cli tools should be asked at the ffmpeg-user mailing list. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel