19.12.2025, 23:22
In my journey to convert some movies, i use some command on ffmpeg for analyze the video frame and sometime give strange things
Tell chatgpt and say there are interlaced BFF but with a lot of progressive frames and undetermined
Put in hybrid and say is TFF
how handle this?
Quote:Duration: 00:27:25.41, start: 1696.428300, bitrate: 6349 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, fcc/bt470bg/bt470bg, bottom first), 720x480 [SAR 8:9 DAR 4:3], 29.97 fps, 29.97 tbr, 90k tbn, start 1696.661633
Side data:
cpb: bitrate max/min/avg: 8800000/0/0 buffer size: 1835008 vbv_delay: N/A
Stream #0:1[0x80]: Audio: ac3, 48000 Hz, mono, fltp, 192 kb/s, start 1696.428300
[Parsed_idet_0 @ 000001de269c8cc0] Repeated Fields: Neither: 0 Top: 0 Bottom: 0
[Parsed_idet_0 @ 000001de269c8cc0] Single frame detection: TFF: 0 BFF: 0 Progressive: 0 Undetermined: 0
[Parsed_idet_0 @ 000001de269c8cc0] Multi frame detection: TFF: 0 BFF: 0 Progressive: 0 Undetermined: 0
Stream mapping:
Stream #0:0 -> #0:0 (mpeg2video (native) -> wrapped_avframe (native))
Press [q] to stop, [?] for help
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf62.3.100
Stream #0:0: Video: wrapped_avframe, yuv420p(tv, fcc/bt470bg/bt470bg, bottom coded first (swapped)), 720x480 [SAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn
Metadata:
encoder : Lavc62.11.100 wrapped_avframe
[Parsed_idet_0 @ 000001de26daf880] Repeated Fields: Neither: 501 Top: 0 Bottom: 0
[Parsed_idet_0 @ 000001de26daf880] Single frame detection: TFF: 0 BFF: 0 Progressive: 448 Undetermined: 53
[Parsed_idet_0 @ 000001de26daf880] Multi frame detection: TFF: 0 BFF: 0 Progressive: 495 Undetermined: 6
[out#0/null @ 000001de269c7e00] video:203KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: unknown
frame= 500 fps=0.0 q=-0.0 Lsize=N/A time=00:00:16.68 bitrate=N/A speed= 294x elapsed=0:00:00.05
Tell chatgpt and say there are interlaced BFF but with a lot of progressive frames and undetermined
Put in hybrid and say is TFF
how handle this?