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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
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Sur d’autres sites (5411)
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Script timing with FFMPEG and PHP
23 juin 2014, par egekhterI’m running into a very strange bug.
Here’s my command console output :
ffmpeg -i /transcodes/original/883_1000_1403436916_00001.MTS -y -vcodec libx264 -tune zerolatency -
movflags faststart -crf 20 -profile:v high -level:v 4.0 -maxrate 6000k -bufsize 12000k -acodec libfdk_aac -b:a 256k /transcodes/883_1000_1403436916_00001_HQ.mp4 -vcodec libx264 -s 848x480 -tune zerolatency -movflags faststart -crf 25 -profile:v main -level:v 3.1 -maxrate 1400k -bufsize 1400k -acodec libfdk_aac -b:a 256k /transcodes/883_1000_1403436916_00001_SQ.mp4 -ss 166.16 -f image2 -vframes 1 /transcodes/883_1000_1403436916_00001_poster.jpg -ss 166.16 -f image2 -vf scale=-1:240 -vframes 1 /transcodes/883_1000_1403436916_00001_thumb.jpg
ffmpeg version 2.2.git Copyright (c) 2000-2014 the FFmpeg developers
built on Jun 13 2014 02:40:27 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration: --prefix=/home/ubuntu/ffmpeg_build --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --bindir=/home/ubuntu/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
libavutil 52. 89.100 / 52. 89.100
libavcodec 55. 66.100 / 55. 66.100
libavformat 55. 43.100 / 55. 43.100
libavdevice 55. 13.101 / 55. 13.101
libavfilter 4. 8.100 / 4. 8.100
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, mpegts, from '/transcodes/original/883_1000_1403436916_00001.MTS':
Duration: 00:04:11.74, start: 0.382511, bitrate: 25222 kb/s
Program 1
Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s
Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
[swscaler @ 0x216fe40] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x2188c20] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 0x2143e60] using SAR=1/1
[libx264 @ 0x2143e60] MB rate (489110) > level limit (245760)
[libx264 @ 0x2143e60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x2143e60] profile High, level 4.0
[libx264 @ 0x2143e60] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=2 lookahead_threads=2 sliced_threads=1 slices=2 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=6000 vbv_bufsize=12000 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
[libx264 @ 0x2150680] using SAR=160/159
[libx264 @ 0x2150680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x2150680] profile Main, level 3.1
[libx264 @ 0x2150680] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=2 lookahead_threads=2 sliced_threads=1 slices=2 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=25.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1400 vbv_bufsize=1400 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/transcodes/883_1000_1403436916_00001_HQ.mp4':
Metadata:
encoder : Lavf55.43.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, max. 6000 kb/s, 59.94 fps, 60k tbn, 59.94 tbc
Metadata:
encoder : Lavc55.66.100 libx264
Stream #0:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, 5.1, s16, 256 kb/s
Metadata:
encoder : Lavc55.66.100 libfdk_aac
Output #1, mp4, to '/transcodes/883_1000_1403436916_00001_SQ.mp4':
Metadata:
encoder : Lavf55.43.100
Stream #1:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 848x480 [SAR 160:159 DAR 16:9], q=-1--1, max. 1400 kb/s, 59.94 fps, 60k tbn, 59.94 tbc
Metadata:
encoder : Lavc55.66.100 libx264
Stream #1:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, 5.1, s16, 256 kb/s
Metadata:
encoder : Lavc55.66.100 libfdk_aac
Output #2, image2, to '/transcodes/883_1000_1403436916_00001_poster.jpg':
Metadata:
encoder : Lavf55.43.100
Stream #2:0: Video: mjpeg, yuvj420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 59.94 fps, 90k tbn, 59.94 tbc
Metadata:
encoder : Lavc55.66.100 mjpeg
Output #3, image2, to '/transcodes/883_1000_1403436916_00001_thumb.jpg':
Metadata:
encoder : Lavf55.43.100
Stream #3:0: Video: mjpeg, yuvj420p, 427x240 [SAR 1280:1281 DAR 16:9], q=2-31, 200 kb/s, 59.94 fps, 90k tbn, 59.94 tbc
Metadata:
encoder : Lavc55.66.100 mjpeg
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (ac3 (native) -> aac (libfdk_aac))
Stream #0:0 -> #1:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #1:1 (ac3 (native) -> aac (libfdk_aac))
Stream #0:0 -> #2:0 (h264 (native) -> mjpeg (mjpeg))
Stream #0:0 -> #3:0 (h264 (native) -> mjpeg (mjpeg))
frame=15090 fps=1.0 q=39.0 q=30.0 q=6.6 q=4.3 size= 193843kB time=00:04:11.75 bitrate=6307.7kbits/s dup=0 drop=15088
[mp4 @ 0x210ae00] Starting second pass: moving the moov atom to the beginning of the file
[mp4 @ 0x210ae00] Unable to re-open /transcodes/883_1000_1403436916_00001_HQ.mp4 output file for the second pass (faststart)
[mp4 @ 0x214fc20] Starting second pass: moving the moov atom to the beginning of the file
[mp4 @ 0x214fc20] Unable to re-open /transcodes/883_1000_1403436916_00001_SQ.mp4 output file for the second pass (faststart)
frame=15090 fps=1.0 q=39.0 Lq=30.0 q=6.6 q=4.3 size= 193843kB time=00:04:11.77 bitrate=6307.1kbits/s dup=0 drop=15088
video:212914kB audio:15741kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[libx264 @ 0x2143e60] frame I:162 Avg QP:23.31 size: 38205
[libx264 @ 0x2143e60] frame P:14928 Avg QP:25.47 size: 12322
[libx264 @ 0x2143e60] mb I I16..4: 24.9% 70.4% 4.6%
[libx264 @ 0x2143e60] mb P I16..4: 2.2% 3.2% 0.0% P16..4: 38.3% 3.7% 4.3% 0.0% 0.0% skip:48.3%
[libx264 @ 0x2143e60] 8x8 transform intra:60.6% inter:94.6%
[libx264 @ 0x2143e60] coded y,uvDC,uvAC intra: 25.5% 50.7% 2.8% inter: 9.7% 17.3% 0.0%
[libx264 @ 0x2143e60] i16 v,h,dc,p: 43% 17% 10% 29%
[libx264 @ 0x2143e60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 13% 34% 4% 4% 4% 5% 3% 3%
[libx264 @ 0x2143e60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 18% 13% 5% 7% 6% 7% 4% 3%
[libx264 @ 0x2143e60] i8c dc,h,v,p: 64% 15% 19% 2%
[libx264 @ 0x2143e60] Weighted P-Frames: Y:0.2% UV:0.0%
[libx264 @ 0x2143e60] ref P L0: 67.7% 14.5% 13.8% 4.0% 0.0%
[libx264 @ 0x2143e60] kb/s:6042.08
[libx264 @ 0x2150680] frame I:72 Avg QP:24.70 size: 14016
[libx264 @ 0x2150680] frame P:15018 Avg QP:28.46 size: 1783
[libx264 @ 0x2150680] mb I I16..4: 39.4% 0.0% 60.6%
[libx264 @ 0x2150680] mb P I16..4: 0.8% 0.0% 0.3% P16..4: 36.3% 4.1% 2.6% 0.0% 0.0% skip:56.0%
[libx264 @ 0x2150680] coded y,uvDC,uvAC intra: 32.1% 41.1% 7.1% inter: 3.9% 6.6% 0.1%
[libx264 @ 0x2150680] i16 v,h,dc,p: 50% 12% 10% 27%
[libx264 @ 0x2150680] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 15% 22% 5% 5% 5% 6% 5% 3%
[libx264 @ 0x2150680] i8c dc,h,v,p: 67% 11% 19% 3%
[libx264 @ 0x2150680] Weighted P-Frames: Y:0.7% UV:0.1%
[libx264 @ 0x2150680] ref P L0: 65.0% 22.3% 10.0% 2.6% 0.0%
[libx264 @ 0x2150680] kb/s:882.93I’ve tried adding sleep(5) after :
exec($cmd, $out, $ret);
to give the script time to move the moov atom to the front before uploading the local file to s3 and then deleting the local file, but it is not 100% reliable.
Any ideas ?
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Why ffmpeg convert only the first frame of my animated gif ? [duplicate]
23 novembre 2016, par CyriltraThis question already has an answer here :
My animated gif is around 37mo and last for around 10sec. I use the following command on debian to convert it to .mp4 :
avconv -i test2_37m2.gif -pix_fmt yuv420p -vf \"scale=trunc(iw/2)*2:trunc(ih/2)*2\" test2_37m2_mp4.mp4 2>&1
The result is a 14kb .mp4 which is just a static frame (the first one) of the gif. Why ?
here is the output log of ffmpeg / avconv
avconv version 0.8.18-6:0.8.18-0+deb7u1, Copyright (c) 2000-2014 the Libav developers
built on Oct 4 2016 17:59:06 with gcc 4.7.2
Input #0, image2, from '/var/www/clients/client1/web1/web/test/gif/test2_37m2.gif':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #0.0: Video: gif, pal8, 640x360, 25 tbr, 25 tbn, 25 tbc
Incompatible pixel format 'pal8' for codec 'libx264', auto-selecting format 'yuv420p'
[buffer @ 0x1a4a820] w:640 h:360 pixfmt:pal8
[avsink @ 0x1a4aac0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
[scale @ 0x1a4ae20] w:640 h:360 fmt:pal8 -> w:640 h:360 fmt:yuv420p flags:0x4
[libx264 @ 0x1a4a060] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x1a4a060] profile Main, level 3.0
[libx264 @ 0x1a4a060] 264 - core 123 r2189 35cf912 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=0 open_gop=1 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=1.25 aq=1:1.00
Output #0, mp4, to '/var/www/clients/client1/web1/web/test/gif/test2_37m2_mp4.mp4':
Metadata:
encoder : Lavf53.21.1
Stream #0.0: Video: libx264, yuv420p, 640x360, q=-1--1, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (gif -> libx264)
Press ctrl-c to stop encoding
frame= 1 fps= 0 q=28.0 Lsize= 13kB time=10000000000.00 bitrate= 0.0kbits/s
video:12kB audio:0kB global headers:0kB muxing overhead 6.292888%
[libx264 @ 0x1a4a060] frame I:1 Avg QP:27.23 size: 12119
[libx264 @ 0x1a4a060] mb I I16..4: 49.2% 0.0% 50.8%
[libx264 @ 0x1a4a060] coded y,uvDC,uvAC intra: 68.7% 45.8% 3.4%
[libx264 @ 0x1a4a060] i16 v,h,dc,p: 22% 25% 22% 31%
[libx264 @ 0x1a4a060] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 28% 21% 4% 5% 4% 9% 3% 7%
[libx264 @ 0x1a4a060] i8c dc,h,v,p: 57% 29% 13% 1%
[libx264 @ 0x1a4a060] kb/s:2423.80Thank you
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ffmpeg "Option preset not found."
2 février 2015, par PiTheNumberI am trying to convert a .mpg to .flv with ffmpeg. On other servers I got it working but here with the ffmpeg clone (avconv) it just does not do it.
Originally I was working with libfaac and preset fastfirstpass but thats not available in this build so I switched to the experimental acc and preset libx264-fast_firstpass :
$ /usr/bin/ffmpeg -i /data/upload/videos/original/150128_Test_731_9d5b83.mpg
-strict experimental -acodec aac -ab 128k -ar 44100 -vcodec libx264 -pass 1
-pre libx264-fast_firstpass -b 512k -s 360x204
-f flv /data/upload/videos/encoded/150129_Test_731_54f06a.flv
avconv version 9.16-6:9.16-0ubuntu0.14.04.1, Copyright (c) 2000-2014 the Libav developers
built on Aug 10 2014 18:16:02 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
[mpeg @ 0xc87de0] max_analyze_duration reached
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, mpeg, from '/data/upload/videos/original/150128_Test_731_9d5b83.mpg':
Duration: 00:01:00.12, start: 0.989978, bitrate: 4814 kb/s
Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x406 [PAR 406:405 DAR 16:9], 104857 kb/s, 23.98 fps, 23.98 tbr, 90k tbn, 47.95 tbc
Stream #0.1[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16p, 224 kb/s
[libx264 @ 0xc8b4c0] using SAR=136/135
[libx264 @ 0xc8b4c0] MB rate (26910000) > level limit (2073600)
[libx264 @ 0xc8b4c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0xc8b4c0] profile Main, level 5.2
[libx264 @ 0xc8b4c0] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 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=3 lookahead_threads=1 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=1 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=30 rc=abr mbtree=1 bitrate=512 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.25 aq=1:1.00
Option preset not found.What does the error in the last line mean ?
I already made sure the preset libx264-fast_firstpass.avpreset exists in /usr/share/avconv/ and if I change it to invalid ffmpeg complains with
Preset invalid specified for stream 0:0, but could not be opened.
, so the preset is correct.Google does provide two results for this error. This chatlog and it’s pastebin about live streaming with the solution to add -f flv and some russian page. Nothing helped.
Any advice ?