Recherche avancée

Recherche
Choix de la période de publication
Date minimale :

Date maximale :

Type de date :
Choix de la langue
Choix du type de média
Choix de la rubrique
Choix de la licence de publication
Choix de l’auteur

Médias (1)

Mot : - Tags -/vidéo

Autres articles (47)

Publier sur MédiaSpip

13 juin 2013

Puis-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
Supporting all media types

13 avril 2011, par kent1

Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Ajouter notes et légendes aux images

7 février 2011, par kent1

Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 16

Sur d’autres sites (8413)

FFmpeg image to video conversion error : [image2] Opening file for reading

14 février 2018, par user1690179

I am running ffmpeg on an AWS Lambda instance. The Lambda function takes an input image and transcodes it into a video segment using ffmpeg :

ffmpeg -loop 1 -i /tmp/photo-SNRUR7ZS13.jpg -c:v libx264 -t 7.00 -pix_fmt yuv420p -vf scale=1280x720 /tmp/output.mp4

I am seeing inconsistent behavior where sometimes the output video is shorter than the specified duration. This happens inconsistently to random images. The same exact image sometimes renders correctly, and sometimes is cut short.

This behavior only happens on Lambda. I am not able to replicate this on my local computer, or on a dedicated EC2 instance with the same environment that runs on lambda.

I noticed that when the output video is short, the ffmpeg log is different. The main difference are repeated [image2 @ 0x4b11140] Opening '/tmp/photo-2HD2Z3UN3W.jpg' for reading lines. See ffmpeg logs below.

Normal execution with the correct output video length :

    ffmpeg -loop 1 -i /tmp/photo-SNRUR7ZS13.jpg -c:v libx264 -t 7.00 -pix_fmt yuv420p -vf scale=1280x720 /tmp/video-TMB6RNO0EE.mp4

ffmpeg version N-89773-g7fcbebbeaf-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 6.4.0 (Debian 6.4.0-11) 20171206

  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg

  libavutil      56.  7.100 / 56.  7.100

  libavcodec     58.  9.100 / 58.  9.100

  libavformat    58.  3.100 / 58.  3.100

  libavdevice    58.  0.100 / 58.  0.100

  libavfilter     7. 11.101 /  7. 11.101

  libswscale      5.  0.101 /  5.  0.101

  libswresample   3.  0.101 /  3.  0.101

  libpostproc    55.  0.100 / 55.  0.100

Input #0, image2, from '/tmp/photo-SNRUR7ZS13.jpg':

  Duration: 00:00:00.04, start: 0.000000, bitrate: 18703 kb/s

    Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 687x860 [SAR 200:200 DAR 687:860], 25 fps, 25 tbr, 25 tbn, 25 tbc

Stream mapping:

  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))

Press [q] to stop, [?] for help

[swscaler @ 0x5837900] deprecated pixel format used, make sure you did set range correctly

[libx264 @ 0x51c2340] using SAR=1477/3287

[libx264 @ 0x51c2340] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2

[libx264 @ 0x51c2340] profile High, level 3.1

[libx264 @ 0x51c2340] 264 - core 155 r61 b00bcaf - 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=3 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 '/tmp/video-TMB6RNO0EE.mp4':

  Metadata:

    encoder         : Lavf58.3.100

    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 6183:13760 DAR 687:860], q=-1--1, 25 fps, 12800 tbn, 25 tbc

    Metadata:

      encoder         : Lavc58.9.100 libx264

    Side data:

      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

frame=   49 fps=0.0 q=28.0 size=       0kB time=-00:00:00.03 bitrate=N/A speed=N/A    

frame=   69 fps= 66 q=28.0 size=       0kB time=00:00:00.76 bitrate=   0.5kbits/s speed=0.728x    

frame=   89 fps= 57 q=28.0 size=       0kB time=00:00:01.56 bitrate=   0.2kbits/s speed=0.998x    

frame=  109 fps= 53 q=28.0 size=       0kB time=00:00:02.36 bitrate=   0.2kbits/s speed=1.14x    

frame=  129 fps= 50 q=28.0 size=       0kB time=00:00:03.16 bitrate=   0.1kbits/s speed=1.22x    

frame=  148 fps= 48 q=28.0 size=       0kB time=00:00:03.92 bitrate=   0.1kbits/s speed=1.27x    

frame=  168 fps= 47 q=28.0 size=       0kB time=00:00:04.72 bitrate=   0.1kbits/s speed=1.31x    

No more output streams to write to, finishing.

frame=  175 fps= 39 q=-1.0 Lsize=      94kB time=00:00:06.88 bitrate= 112.2kbits/s speed=1.54x    

video:91kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 3.161261%

Input file #0 (/tmp/photo-SNRUR7ZS13.jpg):

  Input stream #0:0 (video): 176 packets read (16459168 bytes); 176 frames decoded; 

  Total: 176 packets (16459168 bytes) demuxed

Output file #0 (/tmp/video-TMB6RNO0EE.mp4):

  Output stream #0:0 (video): 175 frames encoded; 175 packets muxed (93507 bytes); 

  Total: 175 packets (93507 bytes) muxed

[libx264 @ 0x51c2340] frame I:1     Avg QP:14.33  size: 73084

[libx264 @ 0x51c2340] frame P:44    Avg QP:14.09  size:   302

[libx264 @ 0x51c2340] frame B:130   Avg QP:23.31  size:    50

[libx264 @ 0x51c2340] consecutive B-frames:  0.6%  1.1%  0.0% 98.3%

[libx264 @ 0x51c2340] mb I  I16..4:  3.3% 84.5% 12.1%

[libx264 @ 0x51c2340] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  3.2%  0.1%  0.0%  0.0%  0.0%    skip:96.7%

[libx264 @ 0x51c2340] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.4%  0.0%  0.0%  direct: 0.0%  skip:99.6%  L0:31.2% L1:68.8% BI: 0.0%

[libx264 @ 0x51c2340] 8x8 transform intra:84.5% inter:98.8%

[libx264 @ 0x51c2340] coded y,uvDC,uvAC intra: 95.1% 63.9% 51.6% inter: 0.1% 0.6% 0.0%

[libx264 @ 0x51c2340] i16 v,h,dc,p: 26% 21%  4% 49%

[libx264 @ 0x51c2340] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 27% 21%  3%  5%  6%  6%  4%  9%

[libx264 @ 0x51c2340] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 36% 10%  4%  7%  5%  6%  2%  6%

[libx264 @ 0x51c2340] i8c dc,h,v,p: 51% 29% 16%  4%

[libx264 @ 0x51c2340] Weighted P-Frames: Y:0.0% UV:0.0%

[libx264 @ 0x51c2340] ref P L0: 96.5%  0.0%  3.3%  0.2%

[libx264 @ 0x51c2340] ref B L0: 42.4% 57.6%

[libx264 @ 0x51c2340] ref B L1: 97.0%  3.0%

[libx264 @ 0x51c2340] kb/s:106.08

Log from a short video :

ffmpeg -framerate 25 -y -loop 1 -i /tmp/photo-2HD2Z3UN3W.jpg -t 15.00 -filter_complex "[0:v]crop=h=ih:w='if(gt(a,16/9),ih*16/9,iw)':y=0:x='if(gt(a,16/9),(ow-iw)/2,0)'[tmp];[tmp]scale=-1:4000,crop=w=iw:h='min(iw*9/16,ih)':x=0:y='0.17*ih-((t/15.00)*min(0.17*ih,(ih-oh)/6))',trim=duration=15.00[tmp1];[tmp1]zoompan=z='if(lte(pzoom,1.0),1.15,max(1.0,pzoom-0.0005))':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=1,setsar=sar=1:1[animated];[animated]fade=out:st=12.00:d=3.00:c=#000000[animated]" -map "[animated]" -pix_fmt yuv420p -s 1280x720 -y /tmp/video-QB1JCDT021.mp4

ffmpeg version N-89773-g7fcbebbeaf-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers

built with gcc 6.4.0 (Debian 6.4.0-11) 20171206

configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg

libavutil 56. 7.100 / 56. 7.100

libavcodec 58. 9.100 / 58. 9.100

libavformat 58. 3.100 / 58. 3.100

libavdevice 58. 0.100 / 58. 0.100

libavfilter 7. 11.101 / 7. 11.101

libswscale 5. 0.101 / 5. 0.101

libswresample 3. 0.101 / 3. 0.101

libpostproc 55. 0.100 / 55. 0.100

Input #0, image2, from '/tmp/photo-2HD2Z3UN3W.jpg':

Duration: 00:00:00.04, start: 0.000000, bitrate: 373617 kb/s

Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 1936x2592 [SAR 72:72 DAR 121:162], 25 fps, 25 tbr, 25 tbn, 25 tbc

Stream mapping:

Stream #0:0 (mjpeg) -> crop

fade -> Stream #0:0 (libx264)

Press [q] to stop, [?] for help

[swscaler @ 0x4d63b40] deprecated pixel format used, make sure you did set range correctly

[swscaler @ 0x4df7340] deprecated pixel format used, make sure you did set range correctly

[swscaler @ 0x50e97c0] deprecated pixel format used, make sure you did set range correctly

[swscaler @ 0x50e97c0] Warning: data is not aligned! This can lead to a speed loss

[libx264 @ 0x4b17480] using SAR=1/1

[libx264 @ 0x4b17480] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2

[libx264 @ 0x4b17480] profile High, level 3.1

[libx264 @ 0x4b17480] 264 - core 155 r61 b00bcaf - 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=3 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 '/tmp/video-QB1JCDT021.mp4':

Metadata:

encoder : Lavf58.3.100

Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc

Metadata:

encoder : Lavc58.9.100 libx264

Side data:

cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1

[swscaler @ 0x5bd0380] deprecated pixel format used, make sure you did set range correctly

debug=1

cur_dts is invalid (this is harmless if it occurs once at the start per stream)

[image2 @ 0x4b11140] Opening '/tmp/photo-2HD2Z3UN3W.jpg' for reading

[AVIOContext @ 0x4b6ecc0] Statistics: 1868086 bytes read, 0 seeks

[mjpeg @ 0x4b14940] marker=d8 avail_size_in_buf=1868084

[mjpeg @ 0x4b14940] marker parser used 0 bytes (0 bits)

[mjpeg @ 0x4b14940] marker=e0 avail_size_in_buf=1868082

[mjpeg @ 0x4b14940] marker parser used 16 bytes (128 bits)

[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1868064

[mjpeg @ 0x4b14940] index=0

[mjpeg @ 0x4b14940] qscale[0]: 0

[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)

[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1867995

[mjpeg @ 0x4b14940] index=1

[mjpeg @ 0x4b14940] qscale[1]: 1

[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)

[mjpeg @ 0x4b14940] marker=c0 avail_size_in_buf=1867926

[mjpeg @ 0x4b14940] sof0: picture: 1936x2592

[mjpeg @ 0x4b14940] component 0 1:1 id: 0 quant:0

[mjpeg @ 0x4b14940] component 1 1:1 id: 1 quant:1

[mjpeg @ 0x4b14940] component 2 1:1 id: 2 quant:1

[mjpeg @ 0x4b14940] pix fmt id 11111100

[mjpeg @ 0x4b14940] marker parser used 17 bytes (136 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867907

[mjpeg @ 0x4b14940] class=0 index=0 nb_codes=11

[mjpeg @ 0x4b14940] marker parser used 30 bytes (240 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867875

[mjpeg @ 0x4b14940] class=1 index=0 nb_codes=242

[mjpeg @ 0x4b14940] marker parser used 82 bytes (656 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867791

[mjpeg @ 0x4b14940] class=0 index=1 nb_codes=8

[mjpeg @ 0x4b14940] marker parser used 27 bytes (216 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867762

[mjpeg @ 0x4b14940] class=1 index=1 nb_codes=241

[mjpeg @ 0x4b14940] marker parser used 51 bytes (408 bits)

[mjpeg @ 0x4b14940] escaping removed 7149 bytes

[mjpeg @ 0x4b14940] marker=da avail_size_in_buf=1867709

[mjpeg @ 0x4b14940] component: 0

[mjpeg @ 0x4b14940] component: 1

[mjpeg @ 0x4b14940] component: 2

[mjpeg @ 0x4b14940] marker parser used 1860559 bytes (14884468 bits)

[mjpeg @ 0x4b14940] marker=d9 avail_size_in_buf=0

[mjpeg @ 0x4b14940] decode frame unused 0 bytes

[swscaler @ 0x5bd42c0] deprecated pixel format used, make sure you did set range correctly

cur_dts is invalid (this is harmless if it occurs once at the start per stream)

[image2 @ 0x4b11140] Opening '/tmp/photo-2HD2Z3UN3W.jpg' for reading

[AVIOContext @ 0x4b6ecc0] Statistics: 1868086 bytes read, 0 seeks

[mjpeg @ 0x4b14940] marker=d8 avail_size_in_buf=1868084

[mjpeg @ 0x4b14940] marker parser used 0 bytes (0 bits)

[mjpeg @ 0x4b14940] marker=e0 avail_size_in_buf=1868082

[mjpeg @ 0x4b14940] marker parser used 16 bytes (128 bits)

[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1868064

[mjpeg @ 0x4b14940] index=0

[mjpeg @ 0x4b14940] qscale[0]: 0

[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)

[mjpeg @ 0x4b14940] marker=db avail_size_in_buf=1867995

[mjpeg @ 0x4b14940] index=1

[mjpeg @ 0x4b14940] qscale[1]: 1

[mjpeg @ 0x4b14940] marker parser used 67 bytes (536 bits)

[mjpeg @ 0x4b14940] marker=c0 avail_size_in_buf=1867926

[mjpeg @ 0x4b14940] sof0: picture: 1936x2592

[mjpeg @ 0x4b14940] component 0 1:1 id: 0 quant:0

[mjpeg @ 0x4b14940] component 1 1:1 id: 1 quant:1

[mjpeg @ 0x4b14940] component 2 1:1 id: 2 quant:1

[mjpeg @ 0x4b14940] pix fmt id 11111100

[mjpeg @ 0x4b14940] marker parser used 17 bytes (136 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867907

[mjpeg @ 0x4b14940] class=0 index=0 nb_codes=11

[mjpeg @ 0x4b14940] marker parser used 30 bytes (240 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867875

[mjpeg @ 0x4b14940] class=1 index=0 nb_codes=242

[mjpeg @ 0x4b14940] marker parser used 82 bytes (656 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867791

[mjpeg @ 0x4b14940] class=0 index=1 nb_codes=8

[mjpeg @ 0x4b14940] marker parser used 27 bytes (216 bits)

[mjpeg @ 0x4b14940] marker=c4 avail_size_in_buf=1867762

[mjpeg @ 0x4b14940] class=1 index=1 nb_codes=241

[mjpeg @ 0x4b14940] marker parser used 51 bytes (408 bits)

[mjpeg @ 0x4b14940] escaping removed 7149 bytes

[mjpeg @ 0x4b14940] marker=da avail_size_in_buf=1867709

[mjpeg @ 0x4b14940] component: 0

[mjpeg @ 0x4b14940] component: 1

[mjpeg @ 0x4b14940] component: 2

[mjpeg @ 0x4b14940] marker parser used 1860559 bytes (14884468 bits)

[mjpeg @ 0x4b14940] marker=d9 avail_size_in_buf=0

[mjpeg @ 0x4b14940] decode frame unused 0 bytes

[swscaler @ 0x5bd8200] deprecated pixel format used, make sure you did set range correctly

cur_dts is invalid (this is harmless if it occurs once at the start per stream)

...

...

...

As requested, here is a link to the full log. In this log - ffmpeg renders only 323 out of 375 frames.

The Opening '/tmp/photo-2HD2Z3UN3W.jpg' segment repeats many many times until it finally renders out a short video. Does anyone have insight into why it keeps opening the image file ? This must have something to do with the underlying issue.

checkasm/Makefile : add EXTRALIBS-swresample

9 février 2018, par Muhammad Faiz

checkasm/Makefile : add EXTRALIBS-swresample

Should fix https://ffmpeg.org/pipermail/ffmpeg-devel/2018-February/225058.html

Signed-off-by : Muhammad Faiz <mfcc64@gmail.com>

[D H] tests/checkasm/Makefile

ffmpeg cannot generate thumbnail

8 mai 2018, par rabbit

In Windows to make a thumbnail with ffmpeg I use :

./ffmpeg -i 1.mp4 -ss 00:00:01 -f image2 1.jpg

or :

./ffmpeg -ss 00:00:01 -i 1.mp4 -f image2 1.jpg

But none can generate a thumbnail, it displays :

ffmpeg -i input.mp4 -ss 1 -frames:v 1 output.jpg

ffmpeg version N-91013-g8007a86363 Copyright (c) 2000-2018 the FFmpeg developers

  built with gcc 7.3.1 (GCC) 20180406

  configuration: 

  libavutil      56. 18.100 / 56. 18.100

  libavcodec     58. 19.101 / 58. 19.101

  libavformat    58. 13.102 / 58. 13.102

  libavdevice    58.  4.100 / 58.  4.100

  libavfilter     7. 21.100 /  7. 21.100

  libswscale      5.  2.100 /  5.  2.100

  libswresample   3.  2.100 /  3.  2.100

Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':

  Metadata:

    major_brand     : isom

    minor_version   : 1

    compatible_brands: isom

    creation_time   : 2017-01-11T08:30:55.000000Z

    encoder         : My MP4Box GUI 0.6.0.6 /my-mp4box-gui.zymichost.com>

  Duration: 00:03:27.93, start: 0.000000, bitrate: 9345 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 2560x1440 [SAR 1:1 DAR 16:9], 9216 kb/s, 30 fps, 30 tbr, 90k tbn, 60 tbc (default)

    Metadata:

      creation_time   : 2016-10-14T14:16:02.000000Z

      handler_name    : videoplayback.mp4

    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)

    Metadata:

      creation_time   : 2017-01-11T08:30:56.000000Z

      handler_name    : videoplayback (1).m4a

Stream mapping:

  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))

Press [q] to stop, [?] for help

[swscaler @ 0x55ad99ffe1c0] deprecated pixel format used, make sure you did set range correctly

Output #0, image2, to 'output.jpg':

  Metadata:

    major_brand     : isom

    minor_version   : 1

    compatible_brands: isom

    encoder         : Lavf58.13.102

    Stream #0:0(und): Video: mjpeg, yuvj420p(pc), 2560x1440 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 30 fps, 30 tbn, 30 tbc (default)

    Metadata:

      creation_time   : 2016-10-14T14:16:02.000000Z

      handler_name    : videoplayback.mp4

      encoder         : Lavc58.19.101 mjpeg

    Side data:

      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1

frame=    0 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=   0x    

video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)

and I find that the video which encoder is

 My MP4Box GUI 0.6.0.6 /my-mp4box-gui.zymichost.com>

the ffmpeg cannot generate thumbnail. And how can I generate the thumbnail ?

1 | ... | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | ... | 2805

Recherche avancée

Médias (1)

Core Media Video

Autres articles (47)

Publier sur MédiaSpip

Supporting all media types

Ajouter notes et légendes aux images

Sur d’autres sites (8413)

FFmpeg image to video conversion error : [image2] Opening file for reading

checkasm/Makefile : add EXTRALIBS-swresample

ffmpeg cannot generate thumbnail

Se connecter

Navigation

Syndication

Boussole SPIP