A digital multimedia container format most commonly used to store video and audio, but which can also be used to store other data such as subtitles and still images.

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Avconv rotating mpeg4 - video loses quality

I'm a newbie in video editing on linux and am trying to rotate a video I took with my phone using AVCONV on an Ubuntu 12.04 machine. It all seems to go honky dory except the output is losing quality. ...
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Copying h.264 video from TS into MP4 changes frame rate and time

I have large MPEG-TS file that I am converting to MP4 using the below command. If I seek to the same time in the video in both the MP4 and the TS file, the MP4 will be a few frames behind the TS ...
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Set ipad compatible thumbs for mp4 videos based on a frame of the video with command line

I have a directory of 100 mp4 files. All are working well on my ipad but most of them do not have a working thumb. I want to generate these thumbs with a command line command (on macosx) based on a ...
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How to extract Xtra atom from MP4 file?

Can one dump/extract the Xtra atom from an MP4 file ? I am looking for a solution on a linux system (debian/jessie if possible). Apparently this atom is used by WMP, as per link. I'd like to be able ...
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Switching between H.264 video streams on the fly?

I have several H.264 encoded MP4 files, as well as still images. From these I want to generate a single video stream that I can broadcast. The stream will be composed of alternating still images and ...
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Where to start Transcoding with FFMPEG?

I would like to learn a lot about Transcoding video files with FFMPEG from any format to mp4 (hH264/AAC) format. We have a large repository of video files ranging from 1 MB to 2 GB of various formats ...