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3
votes
1answer
129 views

Why does ffprobe report an incorrect number of frames?

I have a small video file which ffprobe describes as:- Input #0, avi, from 'sample.avi': Metadata: encoder : Lavf55.12.100 Duration: 00:00:35.00, start: 0.000000, bitrate: 546 kb/s Stream #0:0: ...
0
votes
0answers
62 views

Motion jpeg can not be captured well for motion jpeg on ffmpeg

I set my network camera's codec to motion jpeg 10 fps By the command ffmpeg -y -t 2 -f mjpeg -i http://172.19.1.42/video3.mjpg -acodec copy -vcodec copy test.avi I expected the video should ...
1
vote
1answer
212 views

FFMPEG extracting unreasonable number of I-frames

ffmpeg version git-2014-01-14-abcde ffprobe -show_frames a.mp4 | grep pict_type=I | wc identifies 142 I-frames. ffmpeg -i a.mp4 -filter:v select='eq(pict_type\,I)' I.%03d.png generates thousands of ...
0
votes
0answers
23 views

how find the nearest iframes with ffprobe? [duplicate]

I wonder if can find the nearest iframes from certain position(might be certain seconds) in Video file with ffprobe or ffmpeg. Is it possible? The result what I want is seconds unit position of ...
1
vote
1answer
444 views

How do I check if a h264 video contains b-frames?

I'm using ffprobe right now but I don't if it supports showing whether the video contains b-frames and what could be the syntax. Can I do this with ffprobe and so, how, or is there any other free ...