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Autres articles (111)
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Le plugin : Gestion de la mutualisation
2 mars 2010, parLe plugin de Gestion de mutualisation permet de gérer les différents canaux de mediaspip depuis un site maître. Il a pour but de fournir une solution pure SPIP afin de remplacer cette ancienne solution.
Installation basique
On installe les fichiers de SPIP sur le serveur.
On ajoute ensuite le plugin "mutualisation" à la racine du site comme décrit ici.
On customise le fichier mes_options.php central comme on le souhaite. Voilà pour l’exemple celui de la plateforme mediaspip.net :
< ?php (...) -
Le plugin : Podcasts.
14 juillet 2010, parLe problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
Types de fichiers supportés dans les flux
Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...) -
Formulaire personnalisable
21 juin 2013, parCette page présente les champs disponibles dans le formulaire de publication d’un média et il indique les différents champs qu’on peut ajouter. Formulaire de création d’un Media
Dans le cas d’un document de type média, les champs proposés par défaut sont : Texte Activer/Désactiver le forum ( on peut désactiver l’invite au commentaire pour chaque article ) Licence Ajout/suppression d’auteurs Tags
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire. (...)
Sur d’autres sites (10896)
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Why VLC not display RTP stream
5 janvier 2018, par Alexandr LukovnikovI am new in RTP. I whant to start RTSP server on embeded device. Now I can whatching video file, that stored in flash memory. But when I start translate video, that encoded whith x264, VLC not display anything.
Just buffering, nothing elsecore debug: `rtsp://172.16.50.194:1935/live1.sdp' successfully opened
core debug: Buffering 0%
packetizer_h264 debug: found NAL_SPS (sps_id=0)
core debug: Stream buffering done (11 ms in 133 ms)
core debug: Decoder wait done in 0 ms
packetizer_h264 debug: found NAL_PPS (pps_id=0 sps_id=0)
core error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 30 ms)
core error: ES_OUT_RESET_PCR called
core debug: Buffering 0%
core debug: Buffering 0%
core debug: Buffering 0%
core debug: Stream buffering done (111 ms in 706 ms)
core debug: Decoder wait done in 0 ms
core error: ES_OUT_SET_(GROUP_)PCR is called too late (pts_delay increased to 594 ms)
core error: ES_OUT_RESET_PCR called
core debug: Buffering 0%
...
core debug: Buffering 0%
live555 warning: no data received in 10s, eof ?
core debug: EOF reachedThat is Wireshark dump
SPS slice
1111 0100 = Profile_idc: Unknown (244)
0... .... = Constraint_set0_flag: 0
.0.. .... = Constraint_set1_flag: 0
..0. .... = Constraint_set2_flag: 0
...0 .... = Constraint_set3_flag: 0
.... 0... = Constraint_set4_flag: 0
.... .0.. = Constraint_set5_flag: 0
.... ..00 = Reserved_zero_2bits: 0
0000 1101 = Level_id: 13 [Level 1.3 768 kb/s]
1... .... = seq_parameter_set_id: 0
.001 00.. = log2_max_frame_num_minus4: 3
.... ..01 1... .... = pic_order_cnt_type: 2
.001 01.. = num_ref_frames: 4
.... ..1. = gaps_in_frame_num_value_allowed_flag: 1
.... ...0 10.. .... = pic_width_in_mbs_minus1: 1
..00 0001 0100 0... = pic_height_in_map_units_minus1: 39
.... .0.. = frame_mbs_only_flag: 0
.... ..0. = mb_adaptive_frame_field_flag: 0
.... ...1 = direct_8x8_inference_flag: 1
1... .... = frame_cropping_flag: 1
.1.. .... = frame_crop_left_offset: 0
..1. .... = frame_crop_left_offset: 0
...1 .... = frame_crop_top_offset: 0
.... 1... = frame_crop_bottom_offset: 0
.... .0.. = vui_parameters_present_flag: 0
.... ..1. = rbsp_stop_bit: 1
.... ...0 = rbsp_trailing_bits: 0PPS slice
1... .... = pic_parameter_set_id: 0
.1.. .... = seq_parameter_set_id: 0
..0. .... = entropy_coding_mode_flag: 0
...0 .... = pic_order_present_flag: 0
.... 1... = num_slice_groups_minus1: 0
.... .1.. = num_ref_idx_l0_active_minus1: 0
.... ..1. = num_ref_idx_l1_active_minus1: 0
.... ...0 = weighted_pred_flag: 0
00.. .... = weighted_bipred_idc: 0
..00 0010 110. .... = pic_init_qp_minus26(se(v)): 11
...1 .... = pic_init_qs_minus26: 0
.... 1... = chroma_qp_index_offset: 0
.... .1.. = deblocking_filter_control_present_flag: 1
.... ..0. = constrained_intra_pred_flag: 0
.... ...0 = redundant_pic_cnt_present_flag: 0
1... .... = rbsp_stop_bit: 1
.000 0000 = rbsp_trailing_bits: 0And SEI
x264 - 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=10 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=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=1:1.00What could be my mistake ?
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Convert video with ffmpeg to have the same quality
14 mai 2019, par zlonI want to make some present for my grandma. And prepare some video. Unfortunately here video player is old and could not read some file formats. She is not at home now, so I don’t know which player she has. But I have a file which is OK for here system :
File which is in a correct format :
General
Complete name : let.avi
Format : AVI
Format/Info : Audio Video Interleave
File size : 688 MiB
Duration : 1 h 35 min
Overall bit rate : 1 002 kb/s
Writing application : VirtualDubMod 1.4.13
Writing library : VirtualDub build 14328/release
FileExtension_Invalid : avi
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Simple@L3
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : XVID
Codec ID/Hint : XviD
Duration : 1 h 35 min
Bit rate : 800 kb/s
Width : 544 pixels
Height : 416 pixels
Display aspect ratio : 4:3
Frame rate : 25.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.141
Stream size : 549 MiB (80%)
Writing library : XviD 0.0.09 (UTC 2003-03-25)I have the following file, which here system could not read :
File in the incorrect format :
General
Complete name : amf.avi
Format : AVI
Format/Info : Audio Video Interleave
Overall bit rate : 2 167 kb/s
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Advanced Simple@L5
Format settings : BVOP1
Format settings, BVOP : 1
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (MPEG)
Codec ID : DX50
Codec ID/Hint : DivX 5
Bit rate : 1 710 kb/s
Width : 720 pixels
Height : 528 pixels
Display aspect ratio : 4:3
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.188
Stream size : 1.15 GiB (79%)
Writing library : XviD 64Could you help me to convert the second file to a format of the first ? (It would be nice if the output would be of the similar quality)
I have Ubuntu, and I think
ffmpegshould be able to do it.CROSS POSTED FROM : SE Video production.
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tag refuses to play mp4 video
5 janvier 2015, par MightyPorkI have a video I want to embed using the html5 video tag :
I’ve converted it using
ffmpeg:ffmpeg -i P6135199.MOV -vcodec libx264 -acodec aac helios.mp4FFMPEG output :
[libx264 @ 0x22ac340] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 [libx264 @ 0x22ac340] profile High 4:2:2, level 1.2, 4:2:2 8-bit [libx264 @ 0x22ac340] 264 - core 142 r2455 021c0dc - 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=6 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=2 keyint=250 keyint_min=15 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 ’helios.mp4’ : Metadata : comment-eng : OLYMPUS DIGITAL CAMERA comment : OLYMPUS DIGITAL CAMERA encoder : Lavf56.15.102 Stream #0:0(eng) : Video : h264 (libx264) ([33][0][0][0] / 0x0021), yuvj422p(pc), 320x240, q=-1—1, 15 fps, 15360 tbn, 15 tbc (default) Metadata : creation_time : 2008-06-13 10:47:16 encoder : Lavc56.13.100 libx264 Stream mapping : Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264)) Press [q] to stop, [?] for help frame= 240 fps=124 q=-1.0 Lsize= 906kB time=00:00:15.86 bitrate= 467.7kbits/s video:902kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead : 0.409100% [libx264 @ 0x22ac340] frame I:1 Avg QP:23.71 size : 7960 [libx264 @ 0x22ac340] frame P:123 Avg QP:23.85 size : 5255 [libx264 @ 0x22ac340] frame B:116 Avg QP:25.41 size : 2317 [libx264 @ 0x22ac340] consecutive B-frames : 3.3% 96.7% 0.0% 0.0% [libx264 @ 0x22ac340] mb I I16..4 : 15.7% 69.0% 15.3% [libx264 @ 0x22ac340] mb P I16..4 : 2.2% 13.4% 0.8% P16..4 : 43.8% 23.1% 14.0% 0.0% 0.0% skip : 2.8% [libx264 @ 0x22ac340] mb B I16..4 : 0.3% 1.3% 0.1% B16..8 : 42.4% 9.9% 3.0% direct:12.2% skip:30.9% L0:37.2% L1:38.2% BI:24.5% [libx264 @ 0x22ac340] 8x8 transform intra:80.8% inter:71.9% [libx264 @ 0x22ac340] coded y,uvDC,uvAC intra : 76.7% 96.8% 49.7% inter : 37.8% 60.9% 5.1% [libx264 @ 0x22ac340] i16 v,h,dc,p : 39% 4% 8% 49% [libx264 @ 0x22ac340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu : 15% 14% 39% 6% 3% 4% 3% 6% 12% [libx264 @ 0x22ac340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu : 25% 11% 18% 8% 7% 7% 8% 8% 8% [libx264 @ 0x22ac340] i8c dc,h,v,p : 63% 7% 20% 10% [libx264 @ 0x22ac340] Weighted P-Frames : Y:5.7% UV:0.8% [libx264 @ 0x22ac340] ref P L0 : 51.4% 18.3% 20.6% 9.3% 0.4% [libx264 @ 0x22ac340] ref B L0 : 80.8% 19.2% [libx264 @ 0x22ac340] kb/s:461.52
And I try to embed it as follows :
<video src="helios.mp4" controls="controls">Get a better browser!</video>However, Chrome doesn’t play the video, only offers to download it (same as it did before I converted the video). Firefox has the same problem.
I’ve tested and other mp4 files (from my phone) play just fine.
What’s the problem ? Did I convert it wrong ?
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