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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (89)
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Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...) -
Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (6814)
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How to stream MJPEG stream to RTMP server ?
24 octobre 2018, par geoootI have a MJPEG stream and I’m trying to use ffmpeg to take it as an input and stream it to an rtmp server at a defined framerate.
I have already tried this as a command :
ffmpeg -f mjpeg -r 60 -i http://localhost:3030/ -f flv -vcodec flv rtmp://localhost/live/testWhile ffmpeg looks like it is sending something...
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers built with Apple LLVM version 9.1.0 (clang-902.0.39.2) configuration : —prefix=/usr/local/Cellar/ffmpeg/4.0.2 —enable-shared —enable-pthreads —enable-version3 —enable-hardcoded-tables —enable-avresample —cc=clang —host-cflags= —host-ldflags= —enable-gpl —enable-libmp3lame —enable-libx264 —enable-libxvid —enable-opencl —enable-videotoolbox —disable-lzma libavutil 56. 14.100 / 56. 14.100 libavcodec 58. 18.100 / 58. 18.100 libavformat 58. 12.100 / 58. 12.100 libavdevice 58. 3.100 / 58. 3.100 libavfilter 7. 16.100 / 7. 16.100 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 1.100 / 5. 1.100 libswresample 3. 1.100 / 3. 1.100 libpostproc 55. 1.100 / 55. 1.100 Input #0, mjpeg, from ’http://localhost:3030/’ : Duration : N/A, bitrate : N/A Stream #0:0 : Video : mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 60 tbr, 1200k tbn, 60 tbc [tcp @ 0x7f95f9401ec0] Connection to tcp ://localhost:1935 failed (Connection refused), trying next address Stream mapping : Stream #0:0 -> #0:0 (mjpeg (native) -> flv1 (flv)) Press [q] to stop, [?] for help [swscaler @ 0x7f95fa033e00] deprecated pixel format used, make sure you did set range correctly Output #0, flv, to ’rtmp ://localhost/live/test’ : Metadata : encoder : Lavf58.12.100 Stream #0:0 : Video : flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 60 fps, 1k tbn, 60 tbc Metadata : encoder : Lavc58.18.100 flv Side data : cpb : bitrate max/min/avg : 0/0/200000 buffer size : 0 vbv_delay : -1 frame= 20 fps=3.2 q=31.0 size= 194kB time=00:00:00.31 bitrate=4999.6kbits/s speed=0.0512x
I cannot preview the stream through VLC. Weirdly enough, if I let VLC try to load the url (rtmp ://localhost/live/test) and then close ffmpeg, VLC will actually show the video stream for a few frames and then stop again.
Help on how to achieve this would be much appreciated.
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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>&1Output :
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 faststartoption, also tried with-q:v 0instead 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>&1Output :
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 faststartoption, also tried with-q:v 0instead 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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