ffmpeg: cut multiple input files with seeking to one output file [closed]

Question

I have list of video files (loaded from database), each with start and end time of requested interval:

  # file   begin  end
  v1.mp4   1:01   2:01
  v2.mp4   3:02   3:32
  v3.mp4   2:03   5:23

And I need to create single video file containing these intervals:

 [0:00]---v1---[2:00]---v2---[2:30]---v3---[5:50]

I preffer usig ffmpeg, since it is installed on server. Caller program is written in PHP.

It is easy to cut one input to one output (argument escaping removed for clarity):

  exec("ffmpeg -ss $begin -i $input_file -ss $begin -c copy $output_file");

I there any easier way than executing ffmpeg for each interval and then execute it once more to concatenate prepared clips together? I really do not like to have a lot of temporary files or dealing with complex process handling.

Answer 1

Solution #1:

ffmpeg -ss 1:01 -t 60 -i v1.mp4 -ss 3:02 -t 30 -i v2.mp4 -ss 2:03 -t 200 -i v3.mp4 \
-filter_complex "[0:v][0:a][1:v][1:a][2:v][2:a]concat=n=3:v=1:a=1" \
-y mixed.mp4

Solution #2:

ffmpeg -i v1.mp4 -i v2.mp4 -i v3.mp4 -filter_complex "\
[0:v]trim=61:121,setpts=PTS-STARTPTS[v1]; \
[0:a]atrim=61:121,asetpts=PTS-STARTPTS[a1]; \
[1:v]trim=182:212,setpts=PTS-STARTPTS[v2]; \
[1:a]atrim=182:212,asetpts=PTS-STARTPTS[a2]; \
[2:v]trim=123:323,setpts=PTS-STARTPTS[v3]; \
[2:a]atrim=123:323,asetpts=PTS-STARTPTS[a3]; \
[v1][a1][v2][a2][v3][a3]concat=n=3:v=1:a=1[v][a]" \
-map "[v]" -map "[a]" -y mixed.mp4