
Recherche avancée
Médias (1)
-
Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (63)
-
MediaSPIP version 0.1 Beta
16 avril 2011, parMediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...) -
MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)
Sur d’autres sites (8257)
-
Scroll one image top to bottom
17 septembre 2018, par CyberI am trying to scroll an image top to bottom like this video :
https://youtu.be/8GCrrsiBLzsAnd here’s what I tried
ffmpeg -loop 1 -t 24 -i "image.jpg" -filter_complex "color=000000:s=640x360[bg]; [bg][0]overlay=shortest=1:y='min(0,-(t)*26)'" -y out6.mp4
But video didn’t created, ffmpeg close immediately and returns following results :
ffmpeg version N-91960-g63c69d51c7 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20180813
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
libavutil 56. 19.101 / 56. 19.101
libavcodec 58. 30.100 / 58. 30.100
libavformat 58. 18.101 / 58. 18.101
libavdevice 58. 4.103 / 58. 4.103
libavfilter 7. 31.100 / 7. 31.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
Input #0, image2, from 'image.jpg':
Duration: 00:00:00.04, start: 0.000000, bitrate: 134122 kb/s
Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 1280x1920 [SAR 96:96 DAR 2:3], 25 fps, 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 (mjpeg) -> overlay:overlay
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
[swscaler @ 000001a855f90100] deprecated pixel format used, make sure you did set range correctly
[libx264 @ 000001a856483200] using SAR=1/1
[libx264 @ 000001a856483200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001a856483200] profile High, level 3.0, 4:2:0, 8-bit
[libx264 @ 000001a856483200] 264 - core 157 r2932 303c484 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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=11 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=1:1.00
Output #0, mp4, to 'out6.mp4':
Metadata:
encoder : Lavf58.18.101
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.30.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 -
Is there any possibility to transcode a h264 hls/m3u8 live stream into another HEVC (h265) hls/m3u8 live stream using FFmpeg in real time ?
2 septembre 2024, par Ghenadie PripaThe command I used :


ffmpeg -i https://tezaurtv.md/wp-content/uploads/live/index.m3u8 -c:v libx265 -b:v 1500k -tag:v hvc1 -c:a aac -b:a 128k -f hls -hls_time 10 -hls_list_size 10 -hls_flags delete_segments+append_list+program_date_time -hls_playlist_type event -hls_segment_type mpegts -hls_segment_filename "D:/BRUT/HLS/test/stream_%d.ts" -vsync 2 -rtbufsize 500M -loglevel debug D:/BRUT/HLS/test/stream.m3u8



I tried a lot of commands and parameters but nothing helps. The experiment is on local Windows. Transcode with ffmpeg and play with FFplay.


The problem is the following : After I start
stream.m3u8
to play after a few seconds the picture and sound stops. What is wrong in the FFmpeg command ?

ffmpeg version 7.0.2-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
 built with gcc 13.2.0 (Rev5, Built by MSYS2 project)



ffplay version 7.0.2-full_build-www.gyan.dev Copyright (c) 2003-2024 the FFmpeg developers
 built with gcc 13.2.0 (Rev5, Built by MSYS2 project)



An error from FFplay :


[hevc @ 0000023d8c320940] Output frame with POC 239.
[hevc @ 0000023d8c320940] Decoded frame with POC 241.
[hevc @ 0000023d8c320e40] nal_unit_type: 35(AUD), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d8c320e40] nal_unit_type: 0(TRAIL_N), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d8c320e40] Output frame with POC 240.
[hevc @ 0000023d8c320e40] Decoded frame with POC 240.
[hevc @ 0000023d855aae80] nal_unit_type: 35(AUD), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d855aae80] nal_unit_type: 0(TRAIL_N), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d855aae80] Output frame with POC 241.
[hevc @ 0000023d855aae80] Decoded frame with POC 242.
[hevc @ 0000023d8c2cab40] nal_unit_type: 35(AUD), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d8c2cab40] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d8c2cab40] Output frame with POC 242.
[hevc @ 0000023d8c2cab40] Decoded frame with POC 247.
[hevc @ 0000023d8c2da9c0] nal_unit_type: 35(AUD), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d8c2da9c0] nal_unit_type: 1(TRAIL_R), nuh_layer_id: 0, temporal_id: 0
[hevc @ 0000023d8c2da9c0] Output frame with POC 243.
[hevc @ 0000023d8c2da9c0] Decoded frame with POC 245.
[hls @ 0000023d85544b80] Opening 'D:\BRUT\HLS\test\stream.m3u8' for reading
[hls @ 0000023d85544b80] Skip ('#EXT-X-VERSION:3')
[hls @ 0000023d85544b80] Skip ('#EXT-X-DISCONTINUITY')
[hls @ 0000023d85544b80] Skip ('#EXT-X-PROGRAM-DATE-TIME:2024-08-30T16:29:28.175+0300')
[AVIOContext @ 0000023d8c327040] Statistics: 207 bytes read, 0 seeks
[hls @ 0000023d85544b80] Opening 'D:\BRUT\HLS\test\stream.m3u8' for reading
[hls @ 0000023d85544b80] Skip ('#EXT-X-VERSION:3')sq= 0B
[hls @ 0000023d85544b80] Skip ('#EXT-X-DISCONTINUITY')
[hls @ 0000023d85544b80] Skip ('#EXT-X-PROGRAM-DATE-TIME:2024-08-30T16:29:28.175+0300')
[AVIOContext @ 0000023d8c326980] Statistics: 207 bytes read, 0 seeks
[hls @ 0000023d85544b80] Opening 'D:\BRUT\HLS\test\stream.m3u8' for reading
[hls @ 0000023d85544b80] Skip ('#EXT-X-VERSION:3')
[hls @ 0000023d85544b80] Skip ('#EXT-X-DISCONTINUITY')
[hls @ 0000023d85544b80] Skip ('#EXT-X-PROGRAM-DATE-TIME:2024-08-30T16:29:28.175+0300')
[AVIOContext @ 0000023d8c326f00] Statistics: 207 bytes read, 0 seeks
 11.30 A-V:-18.499 fd= 3 aq= 0KB vq= 0KB sq= 0B



I tried to transcode in real time hls h264 to hls 265.


-
ffmpeg Too many bits per frame requested
18 novembre 2016, par GRaecuSI am using ffmpeg to convert videos to mp4 format. Everything works fine except with MOV format.
The command I use for everything is :
ffmpeg -i input.mov -strict experimental -sameq -s vga -aspect 1.7777 -vcodec libx264 -preset fast -crf 22 -y output.mp4
but the output I keep getting is :
ffmpeg version 0.9, Copyright (c) 2000-2011 the FFmpeg developers
built on Mar 12 2012 11:01:05 with gcc 4.4.5
configuration: --enable-libx264 --enable-gpl --disable-yasm
libavutil 51. 32. 0 / 51. 32. 0
libavcodec 53. 42. 0 / 53. 42. 0
libavformat 53. 24. 0 / 53. 24. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 53. 0 / 2. 53. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 51. 2. 0 / 51. 2. 0
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x21767a0] Referenced QT chapter track not found
Seems stream 0 codec frame rate differs from container frame rate: 30.00 (30/1) -> 30.07 (2225/74)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mov':
Metadata:
creation_time : 2009-04-04 07:12:29
comment : EASTMAN KODAK COMPANY KODAK Z1275 ZOOM DIGITAL CAMERA
comment-eng : EASTMAN KODAK COMPANY KODAK Z1275 ZOOM DIGITAL CAMERA
Duration: 00:00:17.76, start: 0.000000, bitrate: 8100 kb/s
Stream #0:0(eng): Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 7968 kb/s, 30.07 fps, 30.07 tbr, 8544k tbn, 30 tbc
Metadata:
creation_time : 2009-04-04 07:12:29
handler_name :
Stream #0:1(eng): Audio: pcm_mulaw (ulaw / 0x77616C75), 16000 Hz, 1 channels, s16, 128 kb/s
Metadata:
creation_time : 2009-04-04 07:12:29
handler_name :
[buffer @ 0x2187f00] w:1280 h:720 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:
[scale @ 0x219c120] w:1280 h:720 fmt:yuv420p -> w:640 h:480 fmt:yuv420p flags:0x4
[libx264 @ 0x2190d20] using SAR=4/3
[libx264 @ 0x2190d20] using cpu capabilities: none!
[libx264 @ 0x2190d20] profile High, level 3.0
[libx264 @ 0x2190d20] 264 - core 120 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=2 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=6 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=12 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=crf mbtree=1 crf=22.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[aac @ 0x21917e0] Too many bits per frame requested
Output #0, mp4, to 'output.mp4':
Metadata:
creation_time : 2009-04-04 07:12:29
comment : EASTMAN KODAK COMPANY KODAK Z1275 ZOOM DIGITAL CAMERA
comment-eng : EASTMAN KODAK COMPANY KODAK Z1275 ZOOM DIGITAL CAMERA
Stream #0:0(eng): Video: h264, yuv420p, 640x480 [SAR 4:3 DAR 16:9], q=-1--1, 90k tbn, 30.07 tbc
Metadata:
creation_time : 2009-04-04 07:12:29
handler_name :
Stream #0:1(eng): Audio: aac, 16000 Hz, 1 channels, s16, 128 kb/s
Metadata:
creation_time : 2009-04-04 07:12:29
handler_name :
Stream mapping:
Stream #0:0 -> #0:0 (mpeg4 -> libx264)
Stream #0:1 -> #0:1 (pcm_mulaw -> aac)
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or heightIt seems the problem is with audio’s bit per frame.
Which might be the right solution ?