
Recherche avancée
Médias (1)
-
Somos millones 1
21 juillet 2014, par
Mis à jour : Juin 2015
Langue : français
Type : Video
Autres articles (41)
-
Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Les statuts des instances de mutualisation
13 mars 2010, parPour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...) -
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 (...)
Sur d’autres sites (4725)
-
How to increase conversions to meet your business goals
8 septembre 2020, par Joselyn Khor — Analytics Tips, Marketing -
Remuxing MKV to MP4 fails when using -map 0 but works fine when Remuxing MP4 to MKV
20 septembre 2020, par AppetiteForDestructionI have an MKV file that contains 5 streams...


0 : video

1 : audio

2 : audio

3 : text

4 : menu

I was able to remux the MKV into an MP4 using this command...


> ffmpeg.exe -i input.mp4 -map 0 -c copy -c:s mov_text output.mkv



The resulting output MP4 contains all the streams from the original MKV.


But if I try to remux the output MP4 into an MKV using the same command, but with a different codec for the subtitles (srt) and different file extension (mkv), I get an error. However, if I omit "-map 0" from the command, it works but only ONE of the audio streams get copied to the output MKV file.


====================

 Steps to Reproduce

====================

These two commands work, however, the output MKV only contains ONE of the TWO audio streams...


> ffmpeg.exe -i input.mp4 -c copy -c:s srt output.mkv
> ffmpeg.exe -i input.mp4 -c:v copy -c:a copy -c:s srt output.mkv



When I try to use either of the two commands below using "-map 0" just like I did when I remuxed the original MKV into an MP4, the commands fail and both result in the "Full Output" shown at the bottom...


> ffmpeg.exe -i input.mp4 -map 0 -c copy -c:s srt output.mkv
> ffmpeg.exe -i input.mp4 -map 0 -c:v copy -c:a copy -c:s srt output.mkv



Output Error


Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument



So why would using "-map 0" cause it to fail when I used the exact same command to remux the original MKV into an MP4 ? And why does omitting "-map 0" allow it to work, but obviously doesn't copy both audio streams ? Seems like a BUG to me because why does practically the exact same command work for going from MKV to MP4, but not from MP4 to MKV ?


Full Output


ffmpeg version git-2020-07-20-43a08d9 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.3.1 (GCC) 20200621
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libgsm --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 55.100 / 56. 55.100
 libavcodec 58. 96.100 / 58. 96.100
 libavformat 58. 48.100 / 58. 48.100
 libavdevice 58. 11.101 / 58. 11.101
 libavfilter 7. 87.100 / 7. 87.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'F:\input.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2mp41
 encoder : Lavf58.48.100
 Duration: 00:11:03.90, start: 0.000000, bitrate: 5873 kb/s
 Chapter #0:0: start 0.000000, end 663.872000
 Metadata:
 title : Chapter 01
 Stream #0:0(eng): Video: mpeg2video (Main) (mp4v / 0x7634706D), yuv420p(tv, smpte170m, top first), 720x480 [SAR 8:9 DAR 4:3], 5546 kb/s, 29.97 fps, 29.97 tbr, 16k tbn, 59.94 tbc (default)
 Metadata:
 handler_name : VideoHandler
 Side data:
 cpb: bitrate max/min/avg: 8500000/0/0 buffer size: 1835008 vbv_delay: N/A
 Stream #0:1(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, stereo, fltp, 160 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 Side data:
 audio service type: main
 Stream #0:2(eng): Audio: ac3 (ac-3 / 0x332D6361), 48000 Hz, stereo, fltp, 160 kb/s
 Metadata:
 handler_name : SoundHandler
 Side data:
 audio service type: main
 Stream #0:3(eng): Subtitle: mov_text (tx3g / 0x67337874), 0 kb/s (default)
 Metadata:
 handler_name : SubtitleHandler
 Stream #0:4(eng): Data: bin_data (text / 0x74786574)
 Metadata:
 handler_name : SubtitleHandler
Multiple -c, -codec, -acodec, -vcodec, -scodec or -dcodec options specified for stream 3, only the last option '-c:s srt' will be used.
[matroska @ 0000002df6f90f40] Only audio, video, and subtitles are supported for Matroska.
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:1 -> #0:1 (copy)
 Stream #0:2 -> #0:2 (copy)
 Stream #0:3 -> #0:3 (mov_text (native) -> subrip (srt))
 Stream #0:4 -> #0:4 (copy)
 Last message repeated 1 times



-
How to put video on top of overlay using FFmpeg ?
23 juillet 2020, par user3058763How to merge a video and an image (or a black overlay) to get the video on top ?


Input video is already prepared for this (its maximum width/height is 1920x1080) and needs to stay at original size.


This is how it should look like :



orange is an overlay/image (1920x1080px),
pink is a video on top of it (and centered)


The best shot so far I've got :


ffplay -vf "pad=1920:1080:(ow-iw)/2:(oh-ih)/2" input.mp4



this most likely works, but I can't save the image to check.


But this does nothing to the video :


ffmpeg -i input.mp4 -vf "pad=1920:1080:(ow-iw)/2:(oh-ih)/2" output.mp4



Bonus points if you know how to put an image instead of black overlay.
Thank you !


Full logs of the command (output video remains the same resolution as input) :


ffmpeg -i input.mp4 -vf "pad=1920:1080:(ow-iw)/2:(oh-ih)/2" output.mp4

ffmpeg version git-2020-07-21-b5f1e05 Copyright (c) 2000-2020 the FFmpeg developers
 built with Apple clang version 11.0.0 (clang-1100.0.33.17)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-b5f1e05_2 --enable-shared --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libaom --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-demuxer=dash --disable-libjack --disable-indev=jack --enable-opencl --enable-videotoolbox --disable-htmlpages --enable-libbs2b --enable-libcaca --enable-libfdk-aac --enable-libgsm --enable-libmodplug --enable-libopenh264 --enable-libopenjpeg --enable-librav1e --enable-librsvg --enable-librtmp --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtesseract --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libwavpack --enable-libwebp --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-openssl --enable-nonfree --enable-decklink --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/include --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb
 libavutil 56. 55.100 / 56. 55.100
 libavcodec 58. 97.100 / 58. 97.100
 libavformat 58. 49.100 / 58. 49.100
 libavdevice 58. 11.101 / 58. 11.101
 libavfilter 7. 87.100 / 7. 87.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.49.100
 Duration: 00:00:20.70, start: 0.000000, bitrate: 1068 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 9:20 DAR 4:5], 1051 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : Bento4 Video Handler
 Stream #0:1(und): Audio: mp3 (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
File 'output.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (mp3 (mp3float) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7fee16819000] using SAR=9/20
[libx264 @ 0x7fee16819000] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7fee16819000] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x7fee16819000] 264 - core 160 r3011 cde9a93 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - 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=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=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 'output.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.49.100
 Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 9:20 DAR 4:5], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
 Metadata:
 handler_name : Bento4 Video Handler
 encoder : Lavc58.97.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 encoder : Lavc58.97.100 aac
frame= 621 fps= 38 q=-1.0 Lsize= 7148kB time=00:00:20.60 bitrate=2842.6kbits/s speed=1.26x 
video:7138kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.139421%
[libx264 @ 0x7fee16819000] frame I:5 Avg QP:20.79 size: 38334
[libx264 @ 0x7fee16819000] frame P:255 Avg QP:23.03 size: 19776
[libx264 @ 0x7fee16819000] frame B:361 Avg QP:25.79 size: 5745
[libx264 @ 0x7fee16819000] consecutive B-frames: 5.3% 48.6% 8.7% 37.4%
[libx264 @ 0x7fee16819000] mb I I16..4: 27.2% 69.6% 3.3%
[libx264 @ 0x7fee16819000] mb P I16..4: 10.6% 19.1% 0.4% P16..4: 36.9% 4.7% 1.3% 0.0% 0.0% skip:26.9%
[libx264 @ 0x7fee16819000] mb B I16..4: 0.9% 1.6% 0.0% B16..8: 22.5% 1.9% 0.2% direct: 0.5% skip:72.4% L0:46.0% L1:51.5% BI: 2.5%
[libx264 @ 0x7fee16819000] 8x8 transform intra:63.7% inter:94.6%
[libx264 @ 0x7fee16819000] coded y,uvDC,uvAC intra: 28.2% 36.6% 1.0% inter: 5.6% 6.3% 0.0%
[libx264 @ 0x7fee16819000] i16 v,h,dc,p: 7% 31% 6% 56%
[libx264 @ 0x7fee16819000] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 37% 22% 2% 4% 2% 7% 1% 3%
[libx264 @ 0x7fee16819000] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 38% 13% 2% 8% 4% 10% 2% 2%
[libx264 @ 0x7fee16819000] i8c dc,h,v,p: 70% 20% 8% 3%
[libx264 @ 0x7fee16819000] Weighted P-Frames: Y:0.4% UV:0.0%
[libx264 @ 0x7fee16819000] ref P L0: 58.3% 7.7% 26.8% 7.3% 0.0%
[libx264 @ 0x7fee16819000] ref B L0: 85.5% 12.3% 2.1%
[libx264 @ 0x7fee16819000] ref B L1: 97.8% 2.2%
[libx264 @ 0x7fee16819000] kb/s:2824.45
[aac @ 0x7fee1681a800] Qavg: 65536.000