I want to extract the video frames and get the PTS timestamp for each one of them. I have an input MPEG-2 TS file and I prefer to use some open source tool like ffmpeg or something similar. The problem is that when I am using
-vf showinfo option it shows me a restamped PTS. This is the command I am using:
ffmpeg -hide_banner -i input.ts -vf showinfo -vsync 0 -start_number 0 fr%05d.jpg &> log.txt
So here my result is something similar to:
[Parsed_showinfo_0 @ 0x5629810a2000] n: 435 pts:1593000 pts_time:17.7 pos: 55729780 fmt:yuv420p sar:1/1 s:1920x1080 i:T iskey:0 type:B checksum:27AB3255 plane_checksum:[B27F2CE8 F1689963 59E56BFB] mean:[142 127 129] stdev:[36.5 2.8 4.1] [Parsed_showinfo_0 @ 0x5629810a2000] n: 436 pts:1596600 pts_time:17.74 pos: 55690112 fmt:yuv420p sar:1/1 s:1920x1080 i:T iskey:0 type:B checksum:94AD9CBE plane_checksum:[FB0C9721 C477122C 2AA6F362] mean:[142 127 129] stdev:[36.5 2.8 4.1]
While when I execute the ffprobe command:
$ ffprobe -i input.ts -show_frames -select_streams v:0 -print_format flat | grep pkt_pts= frames.frame.435.pkt_pts=4205067450 frames.frame.436.pkt_pts=4205071050
And I need to find out the pkt_pts timestamp on the extracted files possibly with only one command. On top of that, I was checking the SCTE-35 and there I had an offset with 150 frames between the insert intervals. For example according to the PKT_PTS the start and stop frames are 1650 and 2550 which are signaled over SCTE-35 but the actual frames are 1500 2400 when I look only on the extracted frames.