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Médias (1)
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SPIP - plugins - embed code - Exemple
2 septembre 2013, par
Mis à jour : Septembre 2013
Langue : français
Type : Image
Autres articles (90)
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Qualité du média après traitement
21 juin 2013, parLe bon réglage du logiciel qui traite les média est important pour un équilibre entre les partis ( bande passante de l’hébergeur, qualité du média pour le rédacteur et le visiteur, accessibilité pour le visiteur ). Comment régler la qualité de son média ?
Plus la qualité du média est importante, plus la bande passante sera utilisée. Le visiteur avec une connexion internet à petit débit devra attendre plus longtemps. Inversement plus, la qualité du média est pauvre et donc le média devient dégradé voire (...) -
Les images
15 mai 2013 -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;
Sur d’autres sites (9520)
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Invalid data when converting mp4 to x264 with ffmpeg but fine when converting flv to x264
15 octobre 2018, par JulienI have a PHP script that converts uploaded videos to x264, it works fine if I upload an FLV, but with an MP4 it doesn’t work, here’s the command and output :
Command :
ffmpeg -y -i ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4 -crf 0 -vcodec libx264 -movflags faststart ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4 2>&1
Output :
ffmpeg version N-67321-ge5054c8 Copyright (c) 2000-2014 the FFmpeg developers
built on Nov 1 2014 12:53:28 with gcc 4.8.2 (GCC) 20140120 (Red Hat 4.8.2-16)
configuration: --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
libavutil 54. 11.100 / 54. 11.100
libavcodec 56. 10.100 / 56. 10.100
libavformat 56. 11.101 / 56. 11.101
libavdevice 56. 2.100 / 56. 2.100
libavfilter 5. 2.100 / 5. 2.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
creation_time : 2018-10-08 12:03:53
encoder : Lavf56.15.102
Duration: 00:03:03.08, start: 0.023129, bitrate: 1647 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 720x404 [SAR 1:1 DAR 180:101], 1547 kb/s, 24 fps, 24 tbr, 12288 tbn, 24 tbc (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : SoundHandler
[libx264 @ 0x1f0a080] using SAR=1/1
[libx264 @ 0x1f0a080] using cpu capabilities: MMX2 SSE Cache64
[libx264 @ 0x1f0a080] profile High 4:4:4 Predictive, level 3.0, 4:2:0 8-bit
[libx264 @ 0x1f0a080] 64 - 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=0 mixed_ref=1 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=0 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=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=0
Output #0, mp4, to '../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf56.11.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x404 [SAR 1:1 DAR 180:101], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : VideoHandler
encoder : Lavc56.10.100 libx264
Stream #0:1(und): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : SoundHandler
encoder : Lavc56.10.100 libfdk_aac
Stream mapping:
Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[mpeg4 @ 0x2004420] ac-tex damaged at 1 1
[mpeg4 @ 0x2004420] Error at MB: 47
[mpeg4 @ 0x2004420] concealing 1170 DC, 1170 AC, 1170 MV errors in P frame
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ed3ec0] stream 1, offset 0xee5b: partial file
../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ed3ec0] stream 0, offset 0xef98: partial file
../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4: Invalid data found when processing input
[mp4 @ 0x1f08f40] Starting second pass: moving the moov atom to the beginning of the file
frame= 3 fps=0.0 q=-1.0 Lsize= 116kB time=00:00:00.12 bitrate=7585.3kbits/s dup=1 drop=0
video:113kB audio:2kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.171168%
[libx264 @ 0x1f0a080] frame I:1 Avg QP: 0.00 size:113785
[libx264 @ 0x1f0a080] frame P:2 Avg QP: 0.00 size: 518
[libx264 @ 0x1f0a080] mb I I16..4: 38.4% 0.0% 61.6%
[libx264 @ 0x1f0a080] mb P I16..4: 0.2% 0.0% 0.1% P16..4: 1.2% 0.1% 0.2% 0.0% 0.0% skip:98.3%
[libx264 @ 0x1f0a080] 8x8 transform intra:0.0% inter:3.1%
[libx264 @ 0x1f0a080] coded y,uvDC,uvAC intra: 91.6% 88.7% 88.7% inter: 0.7% 0.2% 0.2%
[libx264 @ 0x1f0a080] i16 v,h,dc,p: 46% 53% 1% 0%
[libx264 @ 0x1f0a080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 44% 40% 3% 2% 3% 2% 2% 2% 2%
[libx264 @ 0x1f0a080] i8c dc,h,v,p: 2% 55% 43% 0%
[libx264 @ 0x1f0a080] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x1f0a080] kb/s:7348.61As you can see there are some errors, there. I’ve tried with several different mp4 files, from different sources so it’s not a problem of the video files.
I’ve also tried without the
-movflags faststart
option, also tried with-q:v 0
instead of-crf 0
, nothing works, but like stated above, it works from FLV -> MP4, what am i doing wrong here ?PS : By "Nothing works" I mean the resulting MP4 plays for 1 frame in the browser and stops.
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Invalid data when converting mp4 to x264 with ffmpeg but fine when converting flv to x264
15 octobre 2018, par JulienI have a PHP script that converts uploaded videos to x264, it works fine if I upload an FLV, but with an MP4 it doesn’t work, here’s the command and output :
Command :
ffmpeg -y -i ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4 -crf 0 -vcodec libx264 -movflags faststart ../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4 2>&1
Output :
ffmpeg version N-67321-ge5054c8 Copyright (c) 2000-2014 the FFmpeg developers
built on Nov 1 2014 12:53:28 with gcc 4.8.2 (GCC) 20140120 (Red Hat 4.8.2-16)
configuration: --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libx264
libavutil 54. 11.100 / 54. 11.100
libavcodec 56. 10.100 / 56. 10.100
libavformat 56. 11.101 / 56. 11.101
libavdevice 56. 2.100 / 56. 2.100
libavfilter 5. 2.100 / 5. 2.100
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
creation_time : 2018-10-08 12:03:53
encoder : Lavf56.15.102
Duration: 00:03:03.08, start: 0.023129, bitrate: 1647 kb/s
Stream #0:0(und): Video: mpeg4 (Simple Profile) (mp4v / 0x7634706D), yuv420p, 720x404 [SAR 1:1 DAR 180:101], 1547 kb/s, 24 fps, 24 tbr, 12288 tbn, 24 tbc (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 95 kb/s (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : SoundHandler
[libx264 @ 0x1f0a080] using SAR=1/1
[libx264 @ 0x1f0a080] using cpu capabilities: MMX2 SSE Cache64
[libx264 @ 0x1f0a080] profile High 4:4:4 Predictive, level 3.0, 4:2:0 8-bit
[libx264 @ 0x1f0a080] 64 - 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=0 mixed_ref=1 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=0 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=2 keyint=250 keyint_min=24 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=0
Output #0, mp4, to '../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf56.11.101
Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 720x404 [SAR 1:1 DAR 180:101], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : VideoHandler
encoder : Lavc56.10.100 libx264
Stream #0:1(und): Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s (default)
Metadata:
creation_time : 2018-10-08 12:03:53
handler_name : SoundHandler
encoder : Lavc56.10.100 libfdk_aac
Stream mapping:
Stream #0:0 -> #0:0 (mpeg4 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[mpeg4 @ 0x2004420] ac-tex damaged at 1 1
[mpeg4 @ 0x2004420] Error at MB: 47
[mpeg4 @ 0x2004420] concealing 1170 DC, 1170 AC, 1170 MV errors in P frame
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ed3ec0] stream 1, offset 0xee5b: partial file
../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4: Invalid data found when processing input
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ed3ec0] stream 0, offset 0xef98: partial file
../../flv/rjaRGKzSMtksUJ4kGbsLMYEcr.mp4: Invalid data found when processing input
[mp4 @ 0x1f08f40] Starting second pass: moving the moov atom to the beginning of the file
frame= 3 fps=0.0 q=-1.0 Lsize= 116kB time=00:00:00.12 bitrate=7585.3kbits/s dup=1 drop=0
video:113kB audio:2kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.171168%
[libx264 @ 0x1f0a080] frame I:1 Avg QP: 0.00 size:113785
[libx264 @ 0x1f0a080] frame P:2 Avg QP: 0.00 size: 518
[libx264 @ 0x1f0a080] mb I I16..4: 38.4% 0.0% 61.6%
[libx264 @ 0x1f0a080] mb P I16..4: 0.2% 0.0% 0.1% P16..4: 1.2% 0.1% 0.2% 0.0% 0.0% skip:98.3%
[libx264 @ 0x1f0a080] 8x8 transform intra:0.0% inter:3.1%
[libx264 @ 0x1f0a080] coded y,uvDC,uvAC intra: 91.6% 88.7% 88.7% inter: 0.7% 0.2% 0.2%
[libx264 @ 0x1f0a080] i16 v,h,dc,p: 46% 53% 1% 0%
[libx264 @ 0x1f0a080] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 44% 40% 3% 2% 3% 2% 2% 2% 2%
[libx264 @ 0x1f0a080] i8c dc,h,v,p: 2% 55% 43% 0%
[libx264 @ 0x1f0a080] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x1f0a080] kb/s:7348.61As you can see there are some errors, there. I’ve tried with several different mp4 files, from different sources so it’s not a problem of the video files.
I’ve also tried without the
-movflags faststart
option, also tried with-q:v 0
instead of-crf 0
, nothing works, but like stated above, it works from FLV -> MP4, what am i doing wrong here ?PS : By "Nothing works" I mean the resulting MP4 plays for 1 frame in the browser and stops.
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Why this shell command doesn't work ? ('command' works but 'command|cat' doesn't work)
16 octobre 2018, par yabeeProblem
The following code outputs like...
$ ffprobe -show_frames -select_streams v test.mp4 2>/dev/null|grep -A 2 key_frame=1
key_frame=1
pkt_pts=0
pkt_pts_time=0:00:00.000000
--
key_frame=1
pkt_pts=41041
pkt_pts_time=0:00:01.710042
--
key_frame=1
pkt_pts=64064
pkt_pts_time=0:00:02.669333
--
key_frame=1
pkt_pts=87087
pkt_pts_time=0:00:03.628625
--
...But the folowing one outputs nothing.
$ ffprobe -show_frames -select_streams v test.mp4 2>/dev/null|grep -A 2 key_frame=1|cat
And...
$ ffprobe -show_frames -select_streams v test.mp4 2>/dev/null|grep key_frame=1
key_frame=1
key_frame=1
key_frame=1
key_frame=1
$ ffprobe -show_frames -select_streams v test.mp4 2>/dev/null|grep key_frame=1|cat
# Nothing outputted.Why ?
Expected result
What actually I want to do is
$ ffprobe -show_frames -select_streams v test.mp4 2>/dev/null|grep -A 2key_frame=1|grep time
pkt_pts_time=0:00:00.000000
pkt_pts_time=0:00:01.710042
pkt_pts_time=0:00:02.669333
pkt_pts_time=0:00:03.628625
...But its result is
$ ffprobe -show_frames -select_streams v test.mp4 2>/dev/null|grep -A 2key_frame=1|grep time
# Nothing outputted.Grep works correctory exept it’s after ffprobe.
$ seq 30|grep 1|grep 2
12
21Environment
- Bash on Ubuntu on Windows 10 Pro
- Windows version : 1803
- Windows OS build : 17134.345
Environment of Ubuntu :
$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=18.04
DISTRIB_CODENAME=bionic
DISTRIB_DESCRIPTION="Ubuntu 18.04.1 LTS"
$ bash --version
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later /gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
$ ffprobe
ffprobe version 3.4.4-0ubuntu0.18.04.1 Copyright (c) 2007-2018 the FFmpeg developers
built with gcc 7 (Ubuntu 7.3.0-16ubuntu3)
configuration: --prefix=/usr --extra-version=0ubuntu0.18.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
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
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Simple multimedia streams analyzer
usage: ffprobe [OPTIONS] [INPUT_FILE]
You have to specify one input file.
Use -h to get full help or, even better, run 'man ffprobe'.What is problem ?
Does grep or ffprobe change its behavior by existence of pipe
in this case
?
Thanks. - Bash on Ubuntu on Windows 10 Pro