Thank you, Carl. I'm repeating my submittal in order to keep this thread
intact. My responses are interposed at the bottom...
For soft telecined videos, all frames have
'progressive_frame' = 1
(source: T-REC-H.262-201202-I, confirmed via VOBEdit).
However, the frames that ffprobe marks 'repeat_pict' = 0 have
'interlaced_frame' = 1.
Assumptions:
1, ffprobe's 'interlaced_frame' is the inverse of MPEG2's
'progressive_frame', and
2, ffprobe's 'repeat_pict' is identical to MPEG2's 'repeat_first_field', and
3, ffprobe's quirks are also ffmpeg's quirks, so this problem applies
also to ffmpeg.
If my assumptions are incorrect,
1, What is the correct meaning of ffmpeg's 'interlaced_frame'?
2, What is the correct meaning of ffmpeg's 'repeat_pict'?
Question: Why doesn't ffmpeg use the same metadata names & meanings that
are found in the H.262 specification?
Question: Is there a way to get ffprobe to output the actual metadata?
Windows command used:
ffprobe -i %1 -select_streams v:0 -show_frames -of flat -sexagesimal |
FINDSTR /L "key_frame=1 top_field_first repeat_pict interlaced_frame"
Thanks for the help,
Mark.
On 01/26/2020 03:03 PM, Carl Eugen Hoyos wrote:
Am So., 26. Jan. 2020 um 20:51 Uhr schrieb Mark Filipak
<[email protected]>:
For soft telecined videos, all frames have
'progressive_frame' = 1
I may miss something but since FFmpeg does not "support" soft-telecine
why should there be an interlaced frame?
Yes, ffmpeg does not make soft telecined streams. However, the soft
telecined videos are inputs, not outputs.
In general, please provide command line including complete, uncut
console output when asking questions here.
I provided the command line:
ffprobe -i %1 -select_streams v:0 -show_frames -of flat -sexagesimal |
FINDSTR /L "key_frame=1 top_field_first repeat_pict interlaced_frame"
The console output is very, very long because it outputs all frames.
However, I assume you want to see the versions I'm using. Here they are:
ffprobe version N-94664-g0821bc4eee Copyright (c) 2007-2019 the FFmpeg
developers
built with gcc 9.1.1 (GCC) 20190807
configuration: --enable-gpl --enable-version3 --enable-sdl2
--enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
--enable-libdav1d --enable-libbluray --enable-libfreetype
--enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora
--enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg
--enable-lzma --enable-zlib --enable-gmp --enable-libvidstab
--enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va
--enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
--enable-libopenmpt
libavutil 56. 33.100 / 56. 33.100
libavcodec 58. 55.101 / 58. 55.101
libavformat 58. 31.104 / 58. 31.104
libavdevice 58. 9.100 / 58. 9.100
libavfilter 7. 58.101 / 7. 58.101
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Thank you for your assistance -- Mark.
Carl Eugen
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