It can be in place to demystify a bit what this does. ffmpeg -stream_loop -1 -i /mnt/Sunrise.mp4 -map 0:v -vcodec copy -bsf:v h264_mp4toannexb -f h264 - | ffmpeg -framerate 25 -fflags +genpts -r 25 -re -i -f lavfi -i anullsrc=r=48000:cl=stereo -c:a aac -shortest -vf -vcodec libx264 -preset veryfast -pix_fmt yuv420p -strict -2 -y -f mpegts -r 25 udp://239.0.0.1:1234?pkt_size=1316 One use-case for this could be if you want to measure the distribution and streaming live latency added in the live ABR transcoder and video player. You just need to select the copy codec for each stream type: ffmpeg -i input.ts -vcodec copy -acodec copy output.The following ffmpeg command line will produce an mpeg-ts multicast from a video file that is looping and with the local time burned into the video. Just choose 'copy' for the video and audio streams, and choose the 'PS' container format for MPEG: One of the simplest remuxing tools I've found to use is avidemux. Virtually every piece of software that can decode TS can decode PS, so it's almost always better to have PS file. To get better interoperability, I recommend converting the container from TS to PS. The difference between TS and PS is only how the packet structure is built the A/V data inside it is the same. Many applications are unfamiliar with how to decode it, since it has a very different multiplexing format than the more conventional MPEG container known as 'Program Stream', which is what is used on DVDs, and what is produced by many encoder cards.

ts video format is a container format for MPEG, known as 'Transport Stream', which is used most frequently by digital broadcasting systems (digital cable, satellite, etc).

I tend to recommend leaving files in their original state, as any conversion has a chance to introduce loss.

Ffmpeg ts to mp4