Using ffmpeg (or similar) to print detailed h264 information

Question

I have some h264 video in mpeg transport stream, and I suspect at certain points in the video it switches from 1080i/50Hz to 1080p/25Hz. I'd like to prove that using some video analysis tool. Can ffmpeg (or similar) print out such detailed decoding info? I've tried ffmpeg setting "-loglevel debug" but it prints no more info about the actual decoding.

score 9 · Accepted Answer · answered Oct 26 '12 at 18:14

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ffprobe is a far easier solution and is included with FFmpeg:

$ ffprobe -show_frames -i input.mp4

answered Oct 26 '12 at 18:14

llogan

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score 0 · Answer 2 · answered Oct 26 '12 at 15:08

0

Sorted it. In the end I put a few printfs into ffmpeg source to get the info I needed.

answered Oct 26 '12 at 15:08

gimmeamilk

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vlc -vv (ultra verbose) is an invaluable tool for these kind of situations – arash kordi Oct 26 '12 at 15:48
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@arashkordi VLC uses FFmpeg so using ffprobe is still better. – Timothy Gu Sep 22 '14 at 22:54

Using ffmpeg (or similar) to print detailed h264 information

2 Answers2