FFMPEG BATCH CONVERT MKV TO MP4 MOVIE
FFMPEG BATCH CONVERT MKV TO MP4 FULL

The main factor is disk read/write speed. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The easiest way to 'convert' MKV to MP4, is to copy the existing video and audio streams and place them into a new container.

FFMPEG BATCH CONVERT MKV TO MP4 MOVIE

It actually converted a full length movie 1h 41m 1.5GB to an MP4 with the same audio and video tracks in less than a minute.Converting mkv to mp4 with ffmpeg Essentially just copy the existing video and audio stream as is into a new container, no funny business! I was trying to find a way to demux/extract the video and audio streams and remux them to an MP4 container which seems difficult, at least to find a good utility to do so. Both can containt the exact same text and format, DOCX just has more features and might not be 100% backward compatible with DOC (I have yet to come accross any for my uses.)Ĭonverting anything to MKV is easy thanks to MKVToolkitNIX. Spoiler alert: even VLC reencodes files, even if it needs to do it real time, which is why when playing certain video clips, CPU usage spikes.Īs zMeul said, MKV and MP4 are just containers. The audio and video streams are the same, no need for transcoding you'll lose quality. Re-encoding (or transcoding) is truly the only way. Not sure how players on tablets will handle that but I use VLC so I assume no problems there. If you enable subtitles in VLC, you see the chapter name throughout the chapter. Through Mediainfo, the chapters are listed twice, both under a Menu type but one specifies that it is English text. I didn't think ffmpeg would do it without complex command line but it copies the chapters over perfectly except it adds them a second time as a text menu. Note that this only works if the audio and video codecs are supported in the MP4 container, which is the case for H.264/H.265 and AAC, for example, but not for many others. You can swap containers easily with FFmpeg – you just have to tell it to copy the video and audio bitstreams:įfmpeg -i input.mkv -c:v copy -c:a copy output.mp4

You don't need to encode anything, you just change the 'wrapping' around the video. Is MkvToMP4 a good method? Will I have (or have you had) any problems?Īre there any other methods that will work, keeping the audio tracks and chapter markers, preferably free? I have to make sure the AC3 is set to passthru and set the second audio track to a delay of 0, otherwise it defaults to 65515ms delay, which is a little over a minute.

MkvToMp4 seems to be doing the trick as long as I remember to set the audio tracks correctly. I've tried using VLC to convert but I lose secondary audio tracks and still loose chapter markers. I've tried extracting the MKV streams and muxing them to MP4 using MP4Box GUI but the audio track are out of sync and chapter markers are lost The movies I want to convert typically have an AC3 6-ch track, ACC Dolby/Stereo track, and will have chapter markers.

FFMPEG BATCH CONVERT MKV TO MP4 FULL

Without going through the hassle of a full re-encode, I'd rather convert them to MP4 without losing chapter info, audio tracks, etc. If the movies are in MP4 then the Samsungs work fine. On the Nexus, opening the file opens VLC without issues. I have VLC on the Samsungs and it will play them fine as long as I go into VLC to open them but not through the file manager. Although I have no issue with my Nexus 7, the two Samsung tablets complain about MKV files. I've been using Handbrake to convert DVDs to use in tablets for traveling.

Ffmpeg batch convert mkv to mp4