qosamob.blogg.se - Illegal instructions 4 ffmpeg concat

My goal was to copy the packages, not to remux them.

Concat demux with AVC (MPEG-PS - High Profile) skips frames and mixes some frames from the second clip into the first.

Concat protocol with AVC (MPEG-TS - High profile) pixelates about 5 frames during the transition.

Both "concat protocol" (for h264 TS files) and "Concat demuxer" (for h264 PS files) produce artifacts that are unpleasant to watch: The yuva420p is needed to create an alpha channel whose value is actually modulated by the fade filter.To concat two mp4 or ts files (I've both formats) ffmpeg offers someĬalls that I've tried. The offset value is the preceding slide duration - crossfade duration.

The setpts filters are offset for the slices which have to fade in. The setpts/ asetpts filters are used because trim/ atrim carry over the original timestamps. I have inputted the video multiple times, once for each slice, because using a single input pad (even with split/ asplit) leads to buffer overflows. ffmpeg -i input.mp4 -i input.mp4 -i input.mp4 -i input.mp4 -i input.mp4 \

Below is the single step command template, assuming five slices.