[FFmpeg-trac] #9931(undetermined:new): Files from p to interlaced last frame counted 2x
FFmpeg
trac at avcodec.org
Tue Sep 20 18:41:10 EEST 2022
#9931: Files from p to interlaced last frame counted 2x
-------------------------------------+-------------------------------------
Reporter: Tim | Owner: (none)
Type: defect | Status: new
Priority: normal | Component:
| undetermined
Version: unspecified | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Description changed by Tim:
Old description:
> If i want to transcode a file from progressiv to interlaced,
> the timecode will not be be the same.
> It doubles the last frame.
>
> Example:
> Original File 10:20:15:7
> After transcode 10:20:15:14
>
>
> {{{
> ffmpeg -i "%%i" -vcodec dnxhd -b:v 120M -q 1 -flags +ildct -vf
> "fps=50,format=yuv422p,scale=1920:1080,interlace,fieldorder=tff"
> -map_metadata 0:s:2 "coded\%%~ni_1080i50.mov"
> }}}
>
> many thanks
> Tim
New description:
Timecode of the Original File in Avid MC: 22:24:00:01
FFMPEG Script
{{{
ffmpeg -i "%%i" -vcodec dnxhd -b:v 120M -q 1 -flags +ildct -vf
"fps=50,format=yuv422p,scale=1920:1080,interlace,fieldorder=tff"
-map_metadata 0:s:2 "coded\%%~ni_1080i50.mov"
}}}
Output
{{{
W:\Rohmaterial_Ablage\Project\testencodeBjoern>for %i in (*.mov *.mts
*.mp4 *.3gp) do (
ffmpeg -r 50 -i "%i" -vcodec dnxhd -b:v 120M -q 1 -flags +ildct -vf
"fps=50,format=yuv422p,scale=1920:1080,interlace,fieldorder=tff"
-map_metadata 0:s:2 "coded\%~ni_1080i50.mov"
MOVE "%i" "done\%i"
)
W:\Rohmaterial_Ablage\Project\testencodeBjoern>(
ffmpeg -r 50 -i "Project_R1_AX33_C0001_ff.MP4" -vcodec dnxhd -b:v 120M -q
1 -flags +ildct -vf
"fps=50,format=yuv422p,scale=1920:1080,interlace,fieldorder=tff"
-map_metadata 0:s:2 "coded\Project_R1_AX33_C0001_ff_1080i50.mov"
MOVE "Project_R1_AX33_C0001_ff.MP4" "done\Project_R1_AX33_C0001_ff.MP4"
)
ffmpeg version 2022-08-13-git-c469c3c3b1-essentials_build-www.gyan.dev
Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 12.1.0 (Rev2, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-
w32threads --disable-autodetect --enable-fontconfig --enable-iconv
--enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma
--enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-
avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265
--enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx
--enable-mediafoundation --enable-libass --enable-libfreetype --enable-
libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-
amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
--enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-
libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame
--enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-
libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis
--enable-librubberband
libavutil 57. 33.101 / 57. 33.101
libavcodec 59. 42.101 / 59. 42.101
libavformat 59. 30.100 / 59. 30.100
libavdevice 59. 8.101 / 59. 8.101
libavfilter 8. 46.103 / 8. 46.103
libswscale 6. 8.102 / 6. 8.102
libswresample 4. 8.100 / 4. 8.100
libpostproc 56. 7.100 / 56. 7.100
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Project_R1_AX33_C0001_ff.MP4':
Metadata:
major_brand : XAVC
minor_version : 16785407
compatible_brands: XAVCmp42iso2
creation_time : 2022-08-29T17:06:12.000000Z
Duration: 00:01:09.60, start: 0.000000, bitrate: 52071 kb/s
Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661),
yuv420p(tv, bt709/bt709/iec61966-2-4, progressive), 1920x1080 [SAR 1:1 DAR
16:9], 50123 kb/s, 50 fps, 50 tbr, 50k tbn (default)
Metadata:
creation_time : 2022-08-29T17:06:12.000000Z
handler_name : Video Media Handler
vendor_id : [0][0][0][0]
encoder : AVC Coding
Stream #0:1[0x2](und): Audio: pcm_s16be (twos / 0x736F7774), 48000 Hz,
stereo, s16, 1536 kb/s (default)
Metadata:
creation_time : 2022-08-29T17:06:12.000000Z
handler_name : Sound Media Handler
vendor_id : [0][0][0][0]
Stream #0:2[0x3](und): Data: none (rtmd / 0x646D7472), 409 kb/s
(default)
Metadata:
creation_time : 2022-08-29T17:06:12.000000Z
handler_name : Timed Metadata Media Handler
timecode : 22:24:00:02
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> dnxhd (native))
Stream #0:1 -> #0:1 (pcm_s16be (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mov, to 'coded\Project_R1_AX33_C0001_ff_1080i50.mov':
Metadata:
creation_time : 2022-08-29T17:06:12.000000Z
handler_name : Timed Metadata Media Handler
timecode : 22:24:00:02
encoder : Lavf59.30.100
Stream #0:0: Video: dnxhd (DNXHD) (AVdn / 0x6E645641), yuv422p(tv,
bt709/bt709/iec61966-2-4, top coded first (swapped)), 1920x1080 [SAR 1:1
DAR 16:9], q=2-31, 120000 kb/s, 25 fps, 12800 tbn (default)
Metadata:
encoder : Lavc59.42.101 dnxhd
Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo,
fltp, 128 kb/s (default)
Metadata:
encoder : Lavc59.42.101 aac
[out_0_0 @ 000001abb59d4980] 100 buffers queued in out_0_0, something may
be wrong.speed=3.71x
frame= 2239 fps= 93 q=1.0 Lsize= 1327479kB time=00:01:29.52
bitrate=121478.0kbits/s speed=3.74x
video:1325488kB audio:1955kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: 0.002680%
[aac @ 000001abb54ccd40] Qavg: 118.000
}}}
--
--
Ticket URL: <https://trac.ffmpeg.org/ticket/9931#comment:2>
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