[FFmpeg-user] How to change video fps from 29.970 to 25?
Damian Głodny
damian at artnmedia.pl
Fri Aug 29 14:40:47 CEST 2014
Ok, here it is:
Sample 29.970 fps file which I want to convert to 25fps:
http://artnmedia.pl/damian/fps/sample-29.970fps.mp4
My first step is to convert that file to 23.976 fps. I am trying to do this with pullup filter with followin ffmpeg command:
ffmpeg.exe -i "sample-29.970fps.mp4" -c:v libx264 -c:a libvo_aacenc -b:a 128k -vf pullup -r 24000/1001 "sample-29.970fps_23.976fps.mp4"
But result video is a bit jerky and stutter, you can see it here:
http://artnmedia.pl/damian/fps/sample-29.970fps_23.976fps.mp4
Better play both of those videos in VLC, cause they both can be jerky in browser player.
Here is console output from my conversion with pullup filter:
D:\dev\enconding\tests>ffmpeg.exe -i "sample-29.970fps.mp4" -c:v libx264 -c:a li
bvo_aacenc -b:a 128k -vf pullup -r 24000/1001 "sample-29.970fps_23.976fps.mp4"
ffmpeg version N-65895-g96b2ba6 Copyright (c) 2000-2014 the FFmpeg developers
built on Aug 25 2014 22:10:37 with gcc 4.8.3 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
libavutil 54. 7.100 / 54. 7.100
libavcodec 56. 0.101 / 56. 0.101
libavformat 56. 3.100 / 56. 3.100
libavdevice 56. 0.100 / 56. 0.100
libavfilter 5. 0.103 / 5. 0.103
libswscale 3. 0.100 / 3. 0.100
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 0.100 / 53. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sample-29.970fps.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf56.3.100
Duration: 00:00:20.05, start: 0.000000, bitrate: 3144 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720,
2982 kb/s, 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 15
7 kb/s (default)
Metadata:
handler_name : SoundHandler
File 'sample-29.970fps_23.976fps.mp4' already exists. Overwrite ? [y/N] y
[libx264 @ 00000000049f0500] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX AVX2 FMA3 LZCNT BMI2
[libx264 @ 00000000049f0500] profile High, level 3.1
[libx264 @ 00000000049f0500] 264 - core 142 r2453 ea0ca51 - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed
_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pski
p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 dec
imate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b
_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=
23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.
60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'sample-29.970fps_23.976fps.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf56.3.100
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1
280x720, q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc56.0.101 libx264
Stream #0:1(und): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 48000
Hz, stereo, s16, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc56.0.101 libvo_aacenc
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))
Press [q] to stop, [?] for help
frame= 64 fps=0.0 q=28.0 size= 40kB time=00:00:02.78 bitrate= 117.6kbits/
frame= 101 fps=101 q=28.0 size= 406kB time=00:00:04.34 bitrate= 765.9kbits/
frame= 145 fps= 96 q=28.0 size= 740kB time=00:00:06.17 bitrate= 982.2kbits/
frame= 190 fps= 95 q=28.0 size= 927kB time=00:00:08.05 bitrate= 942.8kbits/
frame= 224 fps= 89 q=28.0 size= 1473kB time=00:00:09.48 bitrate=1272.8kbits/
frame= 263 fps= 85 q=28.0 size= 1714kB time=00:00:11.12 bitrate=1262.4kbits/
frame= 301 fps= 83 q=28.0 size= 2345kB time=00:00:12.68 bitrate=1514.8kbits/
frame= 335 fps= 80 q=28.0 size= 2688kB time=00:00:14.13 bitrate=1558.2kbits/
frame= 375 fps= 80 q=28.0 size= 3180kB time=00:00:15.79 bitrate=1649.0kbits/
frame= 409 fps= 79 q=28.0 size= 3486kB time=00:00:17.18 bitrate=1662.0kbits/
frame= 448 fps= 79 q=28.0 size= 3858kB time=00:00:18.82 bitrate=1678.9kbits/
frame= 483 fps= 75 q=-1.0 Lsize= 5396kB time=00:00:20.06 bitrate=2203.4kbits
/s dup=2 drop=118
video:5068kB audio:314kB subtitle:0kB other streams:0kB global headers:0kB muxin
g overhead: 0.270406%
[libx264 @ 00000000049f0500] frame I:6 Avg QP:17.96 size:130837
[libx264 @ 00000000049f0500] frame P:184 Avg QP:22.76 size: 19856
[libx264 @ 00000000049f0500] frame B:293 Avg QP:26.80 size: 2560
[libx264 @ 00000000049f0500] consecutive B-frames: 12.2% 11.6% 27.3% 48.9%
[libx264 @ 00000000049f0500] mb I I16..4: 20.4% 70.2% 9.5%
[libx264 @ 00000000049f0500] mb P I16..4: 1.3% 5.9% 0.5% P16..4: 43.5% 14.1
% 9.9% 0.0% 0.0% skip:24.8%
[libx264 @ 00000000049f0500] mb B I16..4: 0.0% 0.1% 0.0% B16..8: 34.5% 1.3
% 0.3% direct: 1.2% skip:62.6% L0:44.3% L1:51.4% BI: 4.2%
[libx264 @ 00000000049f0500] 8x8 transform intra:74.6% inter:77.1%
[libx264 @ 00000000049f0500] coded y,uvDC,uvAC intra: 61.9% 70.5% 32.5% inter: 1
4.0% 19.6% 1.2%
[libx264 @ 00000000049f0500] i16 v,h,dc,p: 41% 31% 7% 21%
[libx264 @ 00000000049f0500] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 21% 23% 4% 5%
5% 6% 5% 7%
[libx264 @ 00000000049f0500] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 23% 12% 5% 7%
7% 8% 6% 7%
[libx264 @ 00000000049f0500] i8c dc,h,v,p: 51% 24% 19% 5%
[libx264 @ 00000000049f0500] Weighted P-Frames: Y:29.3% UV:13.0%
[libx264 @ 00000000049f0500] ref P L0: 67.5% 17.3% 12.2% 3.0% 0.0%
[libx264 @ 00000000049f0500] ref B L0: 90.8% 8.3% 0.9%
[libx264 @ 00000000049f0500] ref B L1: 94.2% 5.8%
[libx264 @ 00000000049f0500] kb/s:2060.47
Thank you.
-----Original Message-----
From: ffmpeg-user-bounces at ffmpeg.org [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Carl Eugen Hoyos
Sent: Friday, August 29, 2014 10:42 AM
To: ffmpeg-user at ffmpeg.org
Subject: Re: [FFmpeg-user] How to change video fps from 29.970 to 25?
Damian Głodny <damian <at> artnmedia.pl> writes:
> I tried many ffmpeg filters like pullup, telecine, fieldmatch,
> decimate, but my output video always stuttering.
Please provide your command line, the complete, uncut console output and a few seconds of your input sample.
Carl Eugen
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