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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (32)
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Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
Liste des distributions compatibles
26 avril 2011, parLe tableau ci-dessous correspond à la liste des distributions Linux compatible avec le script d’installation automatique de MediaSPIP. Nom de la distributionNom de la versionNuméro de version Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
Si vous souhaitez nous aider à améliorer cette liste, vous pouvez nous fournir un accès à une machine dont la distribution n’est pas citée ci-dessus ou nous envoyer le (...)
Sur d’autres sites (7660)
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FFmpeg audio doesnt work in converted videos but in pc it does
28 octobre 2013, par Dirk SwarzI use :
if($ext == "avi" && $convert_avi == true)
{
$convert_source = _VIDEOS_DIR_PATH.$new_name;
$conv_name = substr(md5($file['name'].rand(1,888)), 2, 10).".mp4";
$converted_file = _VIDEOS_DIR_PATH.$conv_name;
$ffmpeg_command = 'ffmpeg -i '.$convert_source.' -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 '.$converted_file;
echo exec($ffmpeg_command);
$sql = "UPDATE pm_temp SET url = '".$conv_name."' WHERE url = '".$new_name."' LIMIT 1";
$result = @mysql_query($sql);
unlink($convert_source);
}This code to convert avi to mp4
ffmpeg concole output :root@1tb:~# ffmpeg -i sample.avi -acodec libmp3lame -vcodec libx264 -s 1280x720 -ar 44100 -async 44100 -r 29.970 -ac 2 -qscale 5 goodsample.mp4
ffmpeg version 0.7.15, Copyright (c) 2000-2013 the FFmpeg developers
built on Feb 22 2013 07:18:58 with gcc 4.4.5
configuration: --enable-libdc1394 --prefix=/usr --extra-cflags='-Wall -g ' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-avfilter --enable-libdirac --disable-decoder=libdirac --enable-libfreetype --enable-libschroedinger --disable-encoder=libschroedinger - s
libavutil 50. 43. 0 / 50. 43. 0
libavcodec 52.123. 0 / 52.123. 0
libavformat 52.111. 0 / 52.111. 0
libavdevice 52. 5. 0 / 52. 5. 0
libavfilter 1. 80. 0 / 1. 80. 0
libswscale 0. 14. 1 / 0. 14. 1
libpostproc 51. 2. 0 / 51. 2. 0
[mp3 @ 0x191d4100] Header missing
[mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
Input #0, avi, from 'sample.avi':
Metadata:
encoder : VirtualDubMod 1.5.10.2 (build 2540/release)
Duration: 00:01:01.81, start: 0.000000, bitrate: 1194 kb/s
Stream #0.0: Video: mpeg4, yuv420p, 640x352 [PAR 1:1 DAR 20:11], 23.98 tbr,
Stream #0.1: Audio: mp3, 48000 Hz, stereo, s16, 128 kb/s
[buffer @ 0x191d1c80] w:640 h:352 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
[scale @ 0x191d6880] w:640 h:352 fmt:yuv420p -> w:1280 h:720 fmt:yuv420p flags:0
[libx264 @ 0x191ce5a0] Default settings detected, using medium profile
[libx264 @ 0x191ce5a0] using SAR=45/44
[libx264 @ 0x191ce5a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle S
[libx264 @ 0x191ce5a0] profile High, level 3.1
[libx264 @ 0x191ce5a0] 264 - core 118 - H.264/MPEG-4 AVC codec - Copyleft 2003-2 6 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_off 1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_l
Output #0, mp4, to 'goodsample.mp4':
Metadata:
encoder : Lavf52.111.0
Stream #0.0: Video: libx264, yuv420p, 1280x720 [PAR 45:44 DAR 20:11], q=2-31
Stream #0.1: Audio: libmp3lame, 44100 Hz, stereo, s16, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop, [?] for help
[mp3 @ 0x191d4100] Header missing
Error while decoding stream #0.1
[mpeg4 @ 0x191d1dc0] Invalid and inefficient vfw-avi packed B frames detected
[mp3 @ 0x191d4100] incomplete frame 9467kB time=00:01:00.32 bitrate=1285.5kbits/
Error while decoding stream #0.1
frame= 1852 fps= 20 q=29.0 Lsize= 9652kB time=00:01:01.72 bitrate=1280.9kbits
video:9121kB audio:483kB global headers:0kB muxing overhead 0.499688%
frame I:11 Avg QP:16.78 size: 51456
[libx264 @ 0x191ce5a0] frame P:784 Avg QP:20.81 size: 8954
[libx264 @ 0x191ce5a0] frame B:1057 Avg QP:26.06 size: 1659
[libx264 @ 0x191ce5a0] consecutive B-frames: 22.0% 3.1% 7.5% 67.4%
[libx264 @ 0x191ce5a0] mb I I16..4: 31.1% 59.8% 9.1%
[libx264 @ 0x191ce5a0] mb P I16..4: 1.8% 2.6% 0.2% P16..4: 24.3% 7.0% 4.0
[libx264 @ 0x191ce5a0] mb B I16..4: 0.1% 0.1% 0.0% B16..8: 22.7% 0.8% 0.2
[libx264 @ 0x191ce5a0] 8x8 transform intra:57.0% inter:72.6%
[libx264 @ 0x191ce5a0] coded y,uvDC,uvAC intra: 44.4% 33.3% 10.3% inter: 7.6% 5.
[libx264 @ 0x191ce5a0] i16 v,h,dc,p: 68% 14% 8% 10%
[libx264 @ 0x191ce5a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 14% 27% 5% 7% 7% 6
[libx264 @ 0x191ce5a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 14% 14% 6% 10% 9% 7
[libx264 @ 0x191ce5a0] i8c dc,h,v,p: 67% 13% 17% 3%
[libx264 @ 0x191ce5a0] Weighted P-Frames: Y:1.9% UV:0.4%
[libx264 @ 0x191ce5a0] ref P L0: 62.2% 12.8% 10.3% 14.5% 0.2%
[libx264 @ 0x191ce5a0] ref B L0: 88.1% 5.5% 6.4%
[libx264 @ 0x191ce5a0] ref B L1: 95.7% 4.3%
[libx264 @ 0x191ce5a0] kb/s:1209.03I know there is couple errors tough, but i dont know hot to fix it. Also i would be very thankfull if someone can help reduce video size but is not main problem video weights as original avi but sill.
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FFMPEG - latest build doesn't work, earlier build does
21 juin 2020, par rossmcmI have been using FFMPEG to overlay coloured rectangles on a video. I updated FFMPEG and it no longer works. No error is issued, it just doesn't do the job - the resulting video is the same as the input video. Here's the script :


FFMpeg -y -i Input.mp4 -filter_complex \
 "nullsrc=size=1920x1080, \
 drawbox=x=200:y=100:w=300:h=150:t=20:c=yellow, fade=in:st=10:d=1:alpha=1, fade=out:st=20:d=2:alpha=1 [tmp1]; \ 
 nullsrc=size=1920x1080, \
 drawbox=x=240:y=140:w=300:h=150:t=20:c=red, fade=in:st=15:d=1:alpha=1, fade=out:st=25:d=2:alpha=1 [tmp2]; \
 [tmp1][tmp2] overlay=0:0:shortest=1[tmp3]; \
 [0:v][tmp3] overlay=0:0:shortest=1" \
 Output.mp4



The output video should be the input video with a yellow rectangle added from T=10 to T=20 and a red rectangle from T=15 to T=25, fading them in and out.


The version that was working (3.4) was one that came with an ImageMagick installation. The version I updated it to was 4.2.3. I tried it on various other builds I had lying around and it only works with 3.4.


It seems unlikely that this is a regression so I haven't submitted a bug report. I figure it's more likely that I'm not doing something correctly and 3.4 is more lenient on its interpretation of my command.


Whatever, I prefer to be working with a current build, so I invite comments on what the reasons might be.


Console dump of 3.4 run


ffmpeg version 3.4 Copyright (c) 2000-2017 the FFmpeg developers
 built with gcc 7.2.0 (GCC)
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --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-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
 libavutil 55. 78.100 / 55. 78.100
 libavcodec 57.107.100 / 57.107.100
 libavformat 57. 83.100 / 57. 83.100
 libavdevice 57. 10.100 / 57. 10.100
 libavfilter 6.107.100 / 6.107.100
 libswscale 4. 8.100 / 4. 8.100
 libswresample 2. 9.100 / 2. 9.100
 libpostproc 54. 7.100 / 54. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Input.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:01:48.67, start: 0.000000, bitrate: 1693 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1562 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 126 kb/s (default)
 Metadata:
 handler_name : SoundHandler
Stream mapping:
 Stream #0:0 (h264) -> overlay:main (graph 0)
 overlay (graph 0) -> Stream #0:0 (libx264)
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000001f0d4a0e6a0] using SAR=1/1
[libx264 @ 000001f0d4a0e6a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001f0d4a0e6a0] profile High, level 4.0
[libx264 @ 000001f0d4a0e6a0] 264 - core 152 r2851 ba24899 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=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_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=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=25 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 'Output-34.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf57.83.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
 Metadata:
 encoder : Lavc57.107.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 encoder : Lavc57.107.100 aac
frame= 3260 fps= 25 q=-1.0 Lsize= 21461kB time=00:01:48.56 bitrate=1619.3kbits/s speed=0.828x
video:19713kB audio:1634kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.534457%
[libx264 @ 000001f0d4a0e6a0] frame I:14 Avg QP:17.68 size:208205
[libx264 @ 000001f0d4a0e6a0] frame P:844 Avg QP:21.55 size: 16867
[libx264 @ 000001f0d4a0e6a0] frame B:2402 Avg QP:28.40 size: 1263
[libx264 @ 000001f0d4a0e6a0] consecutive B-frames: 0.7% 2.9% 0.4% 96.0%
[libx264 @ 000001f0d4a0e6a0] mb I I16..4: 14.0% 39.6% 46.4%
[libx264 @ 000001f0d4a0e6a0] mb P I16..4: 0.4% 0.7% 0.2% P16..4: 20.2% 9.1% 4.6% 0.0% 0.0% skip:64.8%
[libx264 @ 000001f0d4a0e6a0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 12.4% 0.4% 0.1% direct: 0.1% skip:87.1% L0:42.9% L1:55.2% BI: 1.9%
[libx264 @ 000001f0d4a0e6a0] 8x8 transform intra:45.2% inter:68.3%
[libx264 @ 000001f0d4a0e6a0] coded y,uvDC,uvAC intra: 64.4% 81.6% 45.1% inter: 2.9% 4.2% 0.1%
[libx264 @ 000001f0d4a0e6a0] i16 v,h,dc,p: 32% 26% 6% 37%
[libx264 @ 000001f0d4a0e6a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 20% 15% 5% 6% 7% 7% 7% 8%
[libx264 @ 000001f0d4a0e6a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 28% 8% 4% 6% 6% 6% 5% 5%
[libx264 @ 000001f0d4a0e6a0] i8c dc,h,v,p: 37% 25% 28% 10%
[libx264 @ 000001f0d4a0e6a0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001f0d4a0e6a0] ref P L0: 70.4% 15.3% 10.8% 3.5%
[libx264 @ 000001f0d4a0e6a0] ref B L0: 93.1% 6.0% 0.9%
[libx264 @ 000001f0d4a0e6a0] ref B L1: 97.8% 2.2%
[libx264 @ 000001f0d4a0e6a0] kb/s:1486.03
[aac @ 000001f0d4a10a20] Qavg: 1586.609



And 4.2.3


ffmpeg version 4.2.3 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.3.1 (GCC) 20200523
 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. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Input.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Duration: 00:01:48.67, start: 0.000000, bitrate: 1693 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1562 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 126 kb/s (default)
 Metadata:
 handler_name : SoundHandler
Stream mapping:
 Stream #0:0 (h264) -> overlay:main (graph 0)
 overlay (graph 0) -> Stream #0:0 (libx264)
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 000001e7b4531d40] using SAR=1/1
[libx264 @ 000001e7b4531d40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001e7b4531d40] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 000001e7b4531d40] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=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_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=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=25 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 'Output-423.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.29.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
 Metadata:
 encoder : Lavc58.54.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 encoder : Lavc58.54.100 aac
frame= 3260 fps= 28 q=-1.0 Lsize= 21425kB time=00:01:48.56 bitrate=1616.7kbits/s speed=0.917x
video:19686kB audio:1625kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.535352%
[libx264 @ 000001e7b4531d40] frame I:14 Avg QP:17.68 size:208355
[libx264 @ 000001e7b4531d40] frame P:844 Avg QP:21.54 size: 16838
[libx264 @ 000001e7b4531d40] frame B:2402 Avg QP:28.43 size: 1261
[libx264 @ 000001e7b4531d40] consecutive B-frames: 0.7% 2.9% 0.4% 96.0%
[libx264 @ 000001e7b4531d40] mb I I16..4: 13.9% 39.7% 46.4%
[libx264 @ 000001e7b4531d40] mb P I16..4: 0.4% 0.7% 0.2% P16..4: 20.2% 9.1% 4.6% 0.0% 0.0% skip:64.8%
[libx264 @ 000001e7b4531d40] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 12.4% 0.4% 0.1% direct: 0.1% skip:87.1% L0:42.9% L1:55.2% BI: 1.9%
[libx264 @ 000001e7b4531d40] 8x8 transform intra:45.3% inter:68.3%
[libx264 @ 000001e7b4531d40] coded y,uvDC,uvAC intra: 65.2% 82.4% 45.8% inter: 2.9% 4.2% 0.1%
[libx264 @ 000001e7b4531d40] i16 v,h,dc,p: 32% 24% 6% 38%
[libx264 @ 000001e7b4531d40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 19% 14% 5% 6% 7% 7% 7% 8%
[libx264 @ 000001e7b4531d40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 32% 28% 8% 4% 6% 6% 6% 5% 5%
[libx264 @ 000001e7b4531d40] i8c dc,h,v,p: 37% 24% 28% 11%
[libx264 @ 000001e7b4531d40] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 000001e7b4531d40] ref P L0: 70.4% 15.3% 10.8% 3.5%
[libx264 @ 000001e7b4531d40] ref B L0: 93.1% 6.0% 0.9%
[libx264 @ 000001e7b4531d40] ref B L1: 97.8% 2.2%
[libx264 @ 000001e7b4531d40] kb/s:1483.98
[aac @ 000001e7b47fa800] Qavg: 1462.566



-
How to compress video size without changing much quality and without changing framerate (Ffmpeg) ?
19 septembre 2020, par WebDivaI am using this command to compress my videos :


ffmpeg -y -i video.mp4 -vcodec libx264 -crf 24 -preset ultrafast compressed.mp4




Although it works okay, there is a slight increase in duration because I am changing the framerate of videos, and we need the video to be the exact duration. Is there a way to compress videos without changing the framerate ? any help would be appreciated. Thank you.


Log :


ffmpeg version git-2020-08-31-4a11a6f Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 10.2.1 (GCC) 20200805
 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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --enable-librav1e --enable-libsvtav1 --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 58.100 / 56. 58.100
 libavcodec 58.101.101 / 58.101.101
 libavformat 58. 51.101 / 58. 51.101
 libavdevice 58. 11.101 / 58. 11.101
 libavfilter 7. 87.100 / 7. 87.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1600498063375.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: isommp42
 creation_time : 2020-09-19T06:47:54.000000Z
 com.android.version: 10
 Duration: 00:00:10.53, start: 0.000000, bitrate: 4613 kb/s
 Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, bt709), 776x1440, 4611 kb/s, SAR 1:1 DAR 97:180, 19.11 fps, 16.42 tbr, 90k tbn, 180k tbc (default)
 Metadata:
 creation_time : 2020-09-19T06:47:54.000000Z
 handler_name : VideoHandle
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 000001e25a673ac0] using SAR=1/1
[libx264 @ 000001e25a673ac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001e25a673ac0] profile Constrained Baseline, level 3.2, 4:2:0, 8-bit
[libx264 @ 000001e25a673ac0] 264 - core 161 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=16 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=24.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'compressed.mp4':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: isommp42
 com.android.version: 10
 encoder : Lavf58.51.101
 Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 776x1440 [SAR 1:1 DAR 97:180], q=-1--1, 16.42 fps, 12608 tbn, 16.42 tbc (default)
 Metadata:
 creation_time : 2020-09-19T06:47:54.000000Z
 handler_name : VideoHandle
 encoder : Lavc58.101.101 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
frame= 181 fps= 95 q=-1.0 Lsize= 5244kB time=00:00:10.96 bitrate=3918.2kbits/s dup=1 drop=29 speed=5.76x
video:5243kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.030269%
[libx264 @ 000001e25a673ac0] frame I:1 Avg QP:21.00 size: 92845
[libx264 @ 000001e25a673ac0] frame P:180 Avg QP:22.42 size: 29306
[libx264 @ 000001e25a673ac0] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 000001e25a673ac0] mb P I16..4: 35.6% 0.0% 0.0% P16..4: 39.9% 0.0% 0.0% 0.0% 0.0% skip:24.6%
[libx264 @ 000001e25a673ac0] coded y,uvDC,uvAC intra: 34.6% 31.8% 2.5% inter: 28.7% 17.1% 0.7%
[libx264 @ 000001e25a673ac0] i16 v,h,dc,p: 38% 18% 20% 23%
[libx264 @ 000001e25a673ac0] i8c dc,h,v,p: 48% 17% 25% 9%
[libx264 @ 000001e25a673ac0] kb/s:3894.93