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Autres articles (27)
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Encodage et transformation en formats lisibles sur Internet
10 avril 2011MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (3133)
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FFmpeg converting image sequence to video results in blank video [closed]
11 juillet 2019, par Brandon DurhamI’ve got a series of 361 .png files that I’m trying to convert to video, and for whatever reason the resulting video is just black. Here is the FFmpeg code I’m using :
ffmpeg -f image2 -i "FeatureTour_%05d.png" -r 30 -vcodec libx264 -b:v 9600k "FeatureTour.mp4"
The files are formatted correctly (
FeatureTour_00001.png
) and no errors are thrown. It just results in a 160kb mp4 files that’s black.Any idea what I’m doing wrong ?
EDIT
Here is my output after using the above code :
ffmpeg version N-46206-g0e4d34e Copyright (c) 2000-2012 the FFmpeg developers
built on Oct 30 2012 23:07:44 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libaacplus --enable-libass --enable-libcelt --enable-libfaac --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-openssl --enable-libopus --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --prefix=/usr/local
libavutil 52. 1.100 / 52. 1.100
libavcodec 54. 70.100 / 54. 70.100
libavformat 54. 35.100 / 54. 35.100
libavdevice 54. 3.100 / 54. 3.100
libavfilter 3. 20.113 / 3. 20.113
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 16.100 / 0. 16.100
libpostproc 52. 1.100 / 52. 1.100
[image2 @ 0x7fa68381e200] max_analyze_duration 5000000 reached at 5000000
Input #0, image2, from 'FeatureTour_%05d.png':
Duration: 00:00:14.44, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, rgb24, 114x151 [SAR 2835:2835 DAR 114:151], 25 fps, 25 tbr, 25 tbn, 25 tbc
[libx264 @ 0x7fa683826c00] using SAR=1/1
[libx264 @ 0x7fa683826c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x7fa683826c00] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
[libx264 @ 0x7fa683826c00] 264 - core 125 - 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=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=4 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=abr mbtree=1 bitrate=9600 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'FeatureTour.mp4':
Metadata:
encoder : Lavf54.35.100
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 114x151 [SAR 1:1 DAR 114:151], q=-1--1, 9600 kb/s, 15360 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> libx264)
Press [q] to stop, [?] for help
frame= 432 fps=0.0 q=-2.0 Lsize= 152kB time=00:00:14.33 bitrate= 86.9kbits/s dup=71 drop=0
video:146kB audio:0kB subtitle:0 global headers:0kB muxing overhead 3.905020%
[libx264 @ 0x7fa683826c00] frame I:3 Avg QP: 0.06 size: 8557
[libx264 @ 0x7fa683826c00] frame P:135 Avg QP: 0.10 size: 653
[libx264 @ 0x7fa683826c00] frame B:294 Avg QP: 0.43 size: 120
[libx264 @ 0x7fa683826c00] consecutive B-frames: 8.8% 0.9% 1.4% 88.9%
[libx264 @ 0x7fa683826c00] mb I I16..4: 30.0% 0.4% 69.6%
[libx264 @ 0x7fa683826c00] mb P I16..4: 2.1% 0.0% 1.9% P16..4: 7.5% 1.2% 0.8% 0.0% 0.0% skip:86.5%
[libx264 @ 0x7fa683826c00] mb B I16..4: 0.2% 0.0% 0.1% B16..8: 4.4% 0.3% 0.2% direct: 0.9% skip:93.8% L0:46.5% L1:48.9% BI: 4.5%
[libx264 @ 0x7fa683826c00] final ratefactor: -45.15
[libx264 @ 0x7fa683826c00] 8x8 transform intra:0.7% inter:19.3%
[libx264 @ 0x7fa683826c00] coded y,u,v intra: 44.4% 32.1% 31.5% inter: 2.3% 1.6% 1.4%
[libx264 @ 0x7fa683826c00] i16 v,h,dc,p: 25% 75% 0% 0%
[libx264 @ 0x7fa683826c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 40% 10% 0% 5% 0% 10% 0% 5%
[libx264 @ 0x7fa683826c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 71% 5% 1% 1% 1% 2% 1% 2%
[libx264 @ 0x7fa683826c00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fa683826c00] ref P L0: 88.0% 3.9% 5.0% 3.1%
[libx264 @ 0x7fa683826c00] ref B L0: 85.4% 12.4% 2.1%
[libx264 @ 0x7fa683826c00] ref B L1: 98.1% 1.9%
[libx264 @ 0x7fa683826c00] kb/s:82.86 -
FFmpeg converting image sequence to video results in blank video [closed]
11 septembre 2016, par Brandon DurhamI’ve got a series of 361 .png files that I’m trying to convert to video, and for whatever reason the resulting video is just black. Here is the FFmpeg code I’m using :
ffmpeg -f image2 -i "FeatureTour_%05d.png" -r 30 -vcodec libx264 -b:v 9600k "FeatureTour.mp4"
The files are formatted correctly (
FeatureTour_00001.png
) and no errors are thrown. It just results in a 160kb mp4 files that’s black.Any idea what I’m doing wrong ?
EDIT
Here is my output after using the above code :
ffmpeg version N-46206-g0e4d34e Copyright (c) 2000-2012 the FFmpeg developers
built on Oct 30 2012 23:07:44 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libaacplus --enable-libass --enable-libcelt --enable-libfaac --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-openssl --enable-libopus --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --prefix=/usr/local
libavutil 52. 1.100 / 52. 1.100
libavcodec 54. 70.100 / 54. 70.100
libavformat 54. 35.100 / 54. 35.100
libavdevice 54. 3.100 / 54. 3.100
libavfilter 3. 20.113 / 3. 20.113
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 16.100 / 0. 16.100
libpostproc 52. 1.100 / 52. 1.100
[image2 @ 0x7fa68381e200] max_analyze_duration 5000000 reached at 5000000
Input #0, image2, from 'FeatureTour_%05d.png':
Duration: 00:00:14.44, start: 0.000000, bitrate: N/A
Stream #0:0: Video: png, rgb24, 114x151 [SAR 2835:2835 DAR 114:151], 25 fps, 25 tbr, 25 tbn, 25 tbc
[libx264 @ 0x7fa683826c00] using SAR=1/1
[libx264 @ 0x7fa683826c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x7fa683826c00] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
[libx264 @ 0x7fa683826c00] 264 - core 125 - 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=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=4 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=abr mbtree=1 bitrate=9600 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'FeatureTour.mp4':
Metadata:
encoder : Lavf54.35.100
Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 114x151 [SAR 1:1 DAR 114:151], q=-1--1, 9600 kb/s, 15360 tbn, 30 tbc
Stream mapping:
Stream #0:0 -> #0:0 (png -> libx264)
Press [q] to stop, [?] for help
frame= 432 fps=0.0 q=-2.0 Lsize= 152kB time=00:00:14.33 bitrate= 86.9kbits/s dup=71 drop=0
video:146kB audio:0kB subtitle:0 global headers:0kB muxing overhead 3.905020%
[libx264 @ 0x7fa683826c00] frame I:3 Avg QP: 0.06 size: 8557
[libx264 @ 0x7fa683826c00] frame P:135 Avg QP: 0.10 size: 653
[libx264 @ 0x7fa683826c00] frame B:294 Avg QP: 0.43 size: 120
[libx264 @ 0x7fa683826c00] consecutive B-frames: 8.8% 0.9% 1.4% 88.9%
[libx264 @ 0x7fa683826c00] mb I I16..4: 30.0% 0.4% 69.6%
[libx264 @ 0x7fa683826c00] mb P I16..4: 2.1% 0.0% 1.9% P16..4: 7.5% 1.2% 0.8% 0.0% 0.0% skip:86.5%
[libx264 @ 0x7fa683826c00] mb B I16..4: 0.2% 0.0% 0.1% B16..8: 4.4% 0.3% 0.2% direct: 0.9% skip:93.8% L0:46.5% L1:48.9% BI: 4.5%
[libx264 @ 0x7fa683826c00] final ratefactor: -45.15
[libx264 @ 0x7fa683826c00] 8x8 transform intra:0.7% inter:19.3%
[libx264 @ 0x7fa683826c00] coded y,u,v intra: 44.4% 32.1% 31.5% inter: 2.3% 1.6% 1.4%
[libx264 @ 0x7fa683826c00] i16 v,h,dc,p: 25% 75% 0% 0%
[libx264 @ 0x7fa683826c00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 40% 10% 0% 5% 0% 10% 0% 5%
[libx264 @ 0x7fa683826c00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 71% 5% 1% 1% 1% 2% 1% 2%
[libx264 @ 0x7fa683826c00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x7fa683826c00] ref P L0: 88.0% 3.9% 5.0% 3.1%
[libx264 @ 0x7fa683826c00] ref B L0: 85.4% 12.4% 2.1%
[libx264 @ 0x7fa683826c00] ref B L1: 98.1% 1.9%
[libx264 @ 0x7fa683826c00] kb/s:82.86 -
ffmpeg fastest way to convert videos avi to mp4 [migrated]
5 novembre 2013, par user2938660I have server which has :
- 8x3,4 (sandy bridge cpu)
- 10gb ram
i tried different combinations to convert vvideos i mean avi to mp4 but it takes so long :
- 20mins= 200mbmaybe there is some ffmpeg command which does this much faster ?
EDIT WITH ULTRAFAST :
root@1tb:~/test# ffmpeg -i video.avi -c:v libx264 -preset ultrafast out.mp4
ffmpeg version git-2013-10-28-f1f0b01 Copyright (c) 2000-2013 the FFmpeg developers
built on Oct 29 2013 02:05:45 with gcc 4.4.5 (Debian 4.4.5-8)
configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
libavutil 52. 48.100 / 52. 48.100
libavcodec 55. 39.100 / 55. 39.100
libavformat 55. 19.104 / 55. 19.104
libavdevice 55. 5.100 / 55. 5.100
libavfilter 3. 90.100 / 3. 90.100
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, avi, from 'video.avi':
Duration: 00:29:00.28, start: 0.000000, bitrate: 1120 kb/s
Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 23.98 tbr, 23.98 tbn, 23.98 tbc
Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16p, 128 kb/s
Metadata:
title : Hello.Ladies.S01E06.HDTV.XviD-AFG_360p.audio
[libx264 @ 0x2e08e40] using SAR=1/1
[libx264 @ 0x2e08e40] using cpu capabilities: none!
[libx264 @ 0x2e08e40] profile Constrained Baseline, level 3.0
[libx264 @ 0x2e08e40] 264 - core 138 r2358 9e941d1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=23 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'out.mp4':
Metadata:
encoder : Lavf55.19.104
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 10000k tbn, 23.98 tbc
Stream #0:1: Audio: aac (libfaac) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s
Metadata:
title : Hello.Ladies.S01E06.HDTV.XviD-AFG_360p.audio
Stream mapping:
Stream #0:0 -> #0:0 (mpeg4 -> libx264)
Stream #0:1 -> #0:1 (mp3 -> libfaac)
Press [q] to stop, [?] for help
frame=41726 fps=326 q=-1.0 Lsize= 312916kB time=00:29:00.32 bitrate=1473.0kbits/s dup=1 drop=0
video:284876kB audio:27186kB subtitle:0 global headers:0kB muxing overhead 0.273494%
[libx264 @ 0x2e08e40] frame I:167 Avg QP:18.69 size: 30492
[libx264 @ 0x2e08e40] frame P:41559 Avg QP:21.68 size: 6897
[libx264 @ 0x2e08e40] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 0x2e08e40] mb P I16..4: 6.3% 0.0% 0.0% P16..4: 51.2% 0.0% 0.0% 0.0% 0.0% skip:42.5%
[libx264 @ 0x2e08e40] coded y,uvDC,uvAC intra: 44.9% 54.5% 19.0% inter: 28.1% 20.3% 2.2%
[libx264 @ 0x2e08e40] i16 v,h,dc,p: 43% 23% 21% 13%
[libx264 @ 0x2e08e40] i8c dc,h,v,p: 36% 22% 32% 11%
[libx264 @ 0x2e08e40] kb/s:1340.96
root@1tb:~/test# qt-faststart out.mp4 labas1.mp4
ftyp 0 32
free 32 8
mdat 40 319552104
moov 319552144 873943
patching stco atom...
patching stco atom...
writing ftyp atom...
writing moov atom...
copying rest of file...
root@1tb:~/test#