[FFmpeg-trac] #1065(undetermined:new): H.264/AVC(BDAV BluRay codec family) incorrect framerate recognition
FFmpeg
trac at avcodec.org
Sun Mar 18 02:19:53 CET 2012
#1065: H.264/AVC(BDAV BluRay codec family) incorrect framerate recognition
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Reporter: L.H.V.F. | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: unspecified | undetermined
Keywords: h264 | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 0
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Comment (by L.H.V.F.):
Hi
In my home, I have only '''CRT''' televisions, with '''common DVD
players''', and so is impossible to play Videos (for example, videos in
general, CFR, converted for DVD with some program), that are out of
standards. An common '''DVD-Video''', for example, are in the''' NTSC
standard''' ('''''The recommended standard a frame rate of 30 frames
(images) per second''''' -- see [http://en.wikipedia.org/wiki/NTSC], and
what I can conclude, if the ffplay is indicated a incorrect handles of the
framerate, the result will also wrong. An free program, it I can certify
that uses '''FFmpeg''', is
'''SUPER'''([http://www.erightsoft.com/SUPER.html]), , and it have an
above limit recognition, and I can with it conclude also that the output
DVD with this lib could be wrong.
Other program that I could quote, is an freeware, is the '''Free Studio
Manager''' ([http://www.dvdvideosoft.com/free-dvd-video-software.htm]),
and I have tested, knowing that this has an framerate recognition above of
the '''CRT/NTSC''' frame limit, as I have saw, of the framerate supported,
because it was captured in my '''set-top-box''', and in my '''CRT
television''', I can play it fine, and converting with '''Free Studio
Manager''', this being above of the '''NTSC standard''''' limit'', the
result is an very slow film reprodution ('''about 60 fps'''), what not
occurs, with the same video, with another program ('''freeware'''), the
'''Freemake Video Converter''', this last with the exact '''29,970 fps'''
recognition, the output converted for DVD, also deinterlaced, plays fine
in my CRT television in the same DVD player.
For this I suspect, if the '''FFmpeg lib''' recognizes (for example with
'''ffplay''') above of the standard limit '''CRT/NTSC''', and also
different than MediaInfo informs, the result will be an slow playback
video in my domestic common home '''DVD Player'''. If this possible bug
exists, this is replicated for all programs based with this '''lib''', all
could be wrong in the output. I would like suggestions, or indicate a
possible solution.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1065#comment:7>
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