#11339: ffmpeg misdetecting framerate of dv
-------------------------------------+-------------------------------------
Reporter: dave rice | Owner: (none)
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: 7.1 | Resolution:
Keywords: dv | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Comment (by dave rice):
Am noting that in ffmpeg@5.1.6 the frame rate is as expected at 29.97 fps,
rather than 60k fps.
{{{
e$ ffmpeg -i test.dv
ffmpeg version 5.1.6 Copyright (c) 2000-2024 the FFmpeg developers
built with Apple clang version 14.0.0 (clang-1400.0.29.202)
configuration: --prefix='/usr/local/Cellar/ffmpeg@5/5.1.6_3'
--datadir='/usr/local/Cellar/ffmpeg@5/5.1.6_3/share/ffmpeg' --enable-
shared --enable-pthreads --enable-version3 --cc=clang --host-cflags=
--host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-
libaom --enable-libaribb24 --enable-libbluray --enable-libdav1d --enable-
libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-
librubberband --enable-libsnappy --enable-libsrt --enable-libsvtav1
--enable-libtesseract --enable-libtheora --enable-libvidstab --enable-
libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-
libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma
--enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-
libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-
libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox
libavutil 57. 28.100 / 57. 28.100
libavcodec 59. 37.100 / 59. 37.100
libavformat 59. 27.100 / 59. 27.100
libavdevice 59. 7.100 / 59. 7.100
libavfilter 8. 44.100 / 8. 44.100
libswscale 6. 7.100 / 6. 7.100
libswresample 4. 7.100 / 4. 7.100
libpostproc 56. 6.100 / 56. 6.100
[dv @ 0x7fef5e805240] Estimating duration from bitrate, this may be
inaccurate
Input #0, dv, from 'test.dv':
Metadata:
timecode : 00:00:00:00
Duration: 00:00:01.97, start: 0.000000, bitrate: 28771 kb/s
Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 8:9 DAR 4:3], 25000
kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn
Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
At least one output file must be specified
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11339#comment:1>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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