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Médias (91)
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Head down (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Echoplex (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Discipline (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Letting you (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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1 000 000 (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
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999 999 (wav version)
26 septembre 2011, par
Mis à jour : Avril 2013
Langue : English
Type : Audio
Autres articles (6)
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Contribute to a better visual interface
13 avril 2011MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community. -
Qu’est ce qu’un éditorial
21 juin 2013, parEcrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
Vous pouvez personnaliser le formulaire de création d’un éditorial.
Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...) -
Que fait exactement ce script ?
18 janvier 2011, parCe script est écrit en bash. Il est donc facilement utilisable sur n’importe quel serveur.
Il n’est compatible qu’avec une liste de distributions précises (voir Liste des distributions compatibles).
Installation de dépendances de MediaSPIP
Son rôle principal est d’installer l’ensemble des dépendances logicielles nécessaires coté serveur à savoir :
Les outils de base pour pouvoir installer le reste des dépendances Les outils de développements : build-essential (via APT depuis les dépôts officiels) ; (...)
Sur d’autres sites (2118)
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FFMpeg - Overlay not being shown when enable=between parameter is added
19 août 2020, par Khawar RazaI am using below command to add transitions effect between videos using overlays such that when one videos is about to finish, the overlay gets visible. Before showing overlays, I have to add padding and concatenate videos make one single video and then display overlays. :


ffmpeg 
-i input1.mp4 
-i input2.mp4 
-i input3.mp4 
-i transition1.mp4 
-i transition2.mp4 
-filter_complex 
"[0:v]pad=width=1080:height=1920:x=(1080-iw)*0.5:y=(1920-ih)*0.5:color=black[video0];
[1:v]pad=width=1080:height=1920:x=(1080-iw)*0.5:y=(1920-ih)*0.5:color=black[video1];
[2:v]pad=width=1080:height=1920:x=(1080-iw)*0.5:y=(1920-ih)*0.5:color=black[video2];
[video0][video1][video2]concat=n=3:v=1:a=0[outv];
[3:v]colorkey=0x00d800:0.1[t0];
[t0]scale=w=1080:h=1920[tr0];
[4:v]colorkey=0x00d800:0.1[t1];
[t1]scale=w=1080:h=1920[tr1];
[outv][tr0]overlay=0:0:enable='between(t\,7\,9)'[out0];
[out0][tr1]overlay=0:0:enable='between(t\,12\,15)'[out1];
[0:a][1:a][2:a]concat=n=3:v=0:a=1[audio]" 
-vsync 0 -c:v libx264 -pix_fmt yuv420p -map [out1] -map [audio] -preset ultrafast output.mp4



But above command does not show any overlay video. If I remove enable=between(t, start, end) from overlay parameters, all the overlay gets displayed at video start. I am very beginner to video editing and to FFMpeg. Can anybody guide me what I am doing wrong here ?


Here is the log from console :


ffmpeg version v4.4-dev-416
I/mobile-ffmpeg: Copyright (c) 2000-2020 the FFmpeg developers
 built with Android (6454773 based on r365631c2) clang version 9.0.8 (https://android.googlesource.com/toolchain/llvm-project 98c855489587874b2a325e7a516b99d838599c6f) (based on LLVM 9.0.8svn)
 configuration: --cross-prefix=aarch64-linux-android- --sysroot=/files/android-sdk/ndk/21.3.6528147/toolchains/llvm/prebuilt/linux-x86_64/sysroot --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/ffmpeg --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=aarch64 --cpu=armv8-a --cc=aarch64-linux-android24-clang --cxx=aarch64-linux-android24-clang++ --extra-libs='-L/home/taner/Projects/mobile-ffmpeg/prebuilt/android-arm64/cpu-features/lib -lndk_compat' --target-os=android --enable-neon --enable-asm --enable-inline-asm --enable-cross-compile --enable-pic --enable-jni --enable-optimizations --enable-swscale --enable-shared --enable-v4l2-m2m --disable-outdev=fbdev --disable-indev=fbdev --enable-small --disable-openssl --disable-xmm-clobber-test --disable-debug --enable-lto --disable-neon-clobber-test --disable-programs --disable-postproc --disable-doc --disable-htmlpages --disable-manpages --disable-podpages --disable-txtpages --disable-static --disable-sndio --disable-schannel --disable-securetransport --disable-xlib --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --disable-videotoolbox --disable-audiotoolbox --disable-appkit --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 --enable-libopencore-amrnb --enable-libshine --enable-libspeex --enable-libwavpack --enable-libkvazaar --enable-libx264 --enable-gpl --enable-libxvid --enable-gpl --enable-libx265 --enable-gpl --enable-libvidstab --enable-gpl --enable-libilbc --enable-libopus --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame --disable-sdl2 --enable-libvo-amrwbenc --enable-zlib --enable-mediacodec
 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

I/mobile-ffmpeg: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input1.mp4':
 Metadata:
 major_brand : 
 mp42
 minor_version : 
 0
 compatible_brands: 
 isommp42
 creation_time : 
 2020-08-12T17:21:49.000000Z
 com.android.version: 
 9
 Duration: 
I/mobile-ffmpeg: 00:00:08.12
 , start: 
 0.000000
 , bitrate: 
 17298 kb/s
 Stream #0:0
 (eng)
 : Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 16309 kb/s
 , SAR 1:1 DAR 16:9
 , 
 28.70 fps, 
 29.50 tbr, 
 90k tbn, 
 60 tbc
 (default)
 Metadata:
 rotate : 
 90
 creation_time : 
 2020-08-12T17:21:49.000000Z
 handler_name : 
 VideoHandle
 Side data:
 
 displaymatrix: rotation of -90.00 degrees
 Stream #0:1
I/mobile-ffmpeg: (eng)
 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s
 (default)
 Metadata:
 creation_time : 
 2020-08-12T17:21:49.000000Z
 handler_name : 
 SoundHandle
I/mobile-ffmpeg: Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'input2.mp4':
 Metadata:
 major_brand : 
 isom
 minor_version : 
 512
 compatible_brands: 
 isomiso2avc1mp41
 encoder : 
 Lavf57.25.100
I/mobile-ffmpeg: Duration: 
 00:00:05.97
 , start: 
 0.000000
 , bitrate: 
 770 kb/s
 Stream #1:0
 (und)
 : Audio: aac (mp4a / 0x6134706D), 22050 Hz, stereo, fltp, 128 kb/s
 (default)
 Metadata:
 handler_name : 
 SoundHandler
 Stream #1:1
 (und)
 : Video: h264 (avc1 / 0x31637661), yuv420p, 368x480, 608 kb/s
 , 
 27.29 fps, 
I/mobile-ffmpeg: 120 tbr, 
 12k tbn, 
 60 tbc
 (default)
 Metadata:
 handler_name : 
 VideoHandler
I/mobile-ffmpeg: Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'input3.mp4':
 Metadata:
 major_brand : 
 isom
 minor_version : 
 512
 compatible_brands: 
 isomiso2avc1mp41
I/mobile-ffmpeg: encoder : 
 Lavf55.19.104
 Duration: 
 00:00:13.05
 , start: 
 0.000000
 , bitrate: 
 2453 kb/s
 Chapter #2:0: 
 start 0.000000, 
 end 13.033000
 Metadata:
 title : 
 Stream #2:0
 (und)
 : Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s
 (default)
I/mobile-ffmpeg: Metadata:
 handler_name : 
 SoundHandler
 Stream #2:1
 (und)
 : Video: h264 (avc1 / 0x31637661), yuv420p, 640x480, 2320 kb/s
 , 
 25 fps, 
 25 tbr, 
 1200k tbn, 
 50 tbc
 (default)
 Metadata:
 handler_name : 
 VideoHandler
 Stream #2:2
 (eng)
 : Data: bin_data (text / 0x74786574), 0 kb/s
I/mobile-ffmpeg: Metadata:
 handler_name : 
 SubtitleHandler
I/mobile-ffmpeg: Input #3, mov,mp4,m4a,3gp,3g2,mj2, from 'transition1.mp4':
 Metadata:
 major_brand : 
 mp42
 minor_version : 
 0
I/mobile-ffmpeg: compatible_brands: 
 mp41isom
 creation_time : 
 2020-08-17T09:24:04.000000Z
 Duration: 
 00:00:02.22
 , start: 
 0.000000
 , bitrate: 
 2445 kb/s
 Stream #3:0
 (und)
 : Video: h264 (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 2414 kb/s
 , 
 30 fps, 
 30 tbr, 
 30k tbn, 
 60 tbc
 (default)
I/mobile-ffmpeg: Metadata:
 creation_time : 
 2020-08-17T09:24:04.000000Z
 handler_name : 
 VideoHandler
 encoder : 
 AVC Coding
 Stream #3:1
 (und)
 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 79 kb/s
 (default)
 Metadata:
 creation_time : 
I/mobile-ffmpeg: 2020-08-17T09:24:04.000000Z
 handler_name : 
I/mobile-ffmpeg: SoundHandler
I/mobile-ffmpeg: Input #4, mov,mp4,m4a,3gp,3g2,mj2, from 'transition2.mp4':
 Metadata:
 major_brand : 
 mp42
 minor_version : 
 0
 compatible_brands: 
 mp41isom
 creation_time : 
 2020-08-17T09:21:33.000000Z
 Duration: 
 00:00:02.22
 , start: 
 0.000000
 , bitrate: 
 2331 kb/s
I/mobile-ffmpeg: Stream #4:0
 (und)
 : Video: h264 (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 2298 kb/s
 , 
 30 fps, 
 30 tbr, 
 30k tbn, 
 60 tbc
 (default)
 Metadata:
 creation_time : 
 2020-08-17T09:21:33.000000Z
 handler_name : 
 VideoHandler
 encoder : 
 AVC Coding
 Stream #4:1
 (und)
I/mobile-ffmpeg: : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 79 kb/s
 (default)
 Metadata:
 creation_time : 
 2020-08-17T09:21:33.000000Z
 handler_name : 
 SoundHandler
I/mobile-ffmpeg: Stream mapping:
 Stream #0:0 (h264) -> pad
 Stream #0:1 (aac) -> concat:in0:a0
 Stream #1:0 (aac) -> concat:in1:a0
 Stream #1:1 (h264) -> pad
 Stream #2:0 (aac) -> concat:in2:a0
 Stream #2:1 (h264) -> pad
 Stream #3:0 (h264) -> colorkey
 Stream #4:0 (h264) -> colorkey
I/mobile-ffmpeg: overlay
 -> Stream #0:0 (libx264)
 concat
 -> Stream #0:1 (aac)
 Press [q] to stop, [?] for help
W/mobile-ffmpeg: [graph 0 input from stream 0:0 @ 0x73485c3fc0] sws_param option is deprecated and ignored
 [graph 0 input from stream 1:1 @ 0x73485c4140] sws_param option is deprecated and ignored
 [graph 0 input from stream 2:1 @ 0x73485c4200] sws_param option is deprecated and ignored
 [graph 0 input from stream 3:0 @ 0x73485c42c0] sws_param option is deprecated and ignored
W/mobile-ffmpeg: [graph 0 input from stream 4:0 @ 0x73485c4380] sws_param option is deprecated and ignored
W/mobile-ffmpeg: [swscaler @ 0x7324db9000] No accelerated colorspace conversion found from yuv420p to argb.
W/mobile-ffmpeg: [swscaler @ 0x7324876000] No accelerated colorspace conversion found from yuv420p to argb.
I/mobile-ffmpeg: [libx264 @ 0x7332f9a500] using SAR=1/1
W/mobile-ffmpeg: [libx264 @ 0x7332f9a500] MB rate (8160000000) > level limit (16711680)
I/mobile-ffmpeg: [libx264 @ 0x7332f9a500] using cpu capabilities: ARMv8 NEON
I/mobile-ffmpeg: [libx264 @ 0x7332f9a500] profile Constrained Baseline, level 6.2, 4:2:0, 8-bit
 [libx264 @ 0x7332f9a500] 264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
I/mobile-ffmpeg: Output #0, mp4, to 'output.mp4':
 Metadata:
I/mobile-ffmpeg: major_brand : 
 mp42
 minor_version : 
 0
 compatible_brands: 
 isommp42
 com.android.version: 
 9
 encoder : 
 Lavf58.48.100
 Chapter #0:0: 
 start 0.000000, 
 end 13.033000
 Metadata:
 title : 
 Stream #0:0
I/mobile-ffmpeg: : Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 1080x1920 [SAR 1:1 DAR 9:16], q=-1--1
 , 
 1000k tbn, 
 1000k tbc
 (default)
 Metadata:
 encoder : 
 Lavc58.96.100 libx264
 Side data:
 
 cpb: 
 bitrate max/min/avg: 0/0/0 buffer size: 0 
 vbv_delay: N/A
 Stream #0:1
 : Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
 (default)
 Metadata:
I/mobile-ffmpeg: encoder : 
 Lavc58.96.100 aac
E/Progress: Progress: 3.6918316
D/mobile-ffmpeg: Progress: frame: 1, time: 1002, Pct: 0.036918
I/mobile-ffmpeg: frame= 1 fps=0.0 q=0.0 size= 0kB time=00:00:01.00 bitrate= 0.5kbits/s speed=1.13x 



-
lavf/srtdec : rewrite parsing logic
22 décembre 2015, par Clément Bœschlavf/srtdec : rewrite parsing logic
Fixes Ticket #5032
The samples in Ticket #5032 is using \r\r\n as line breaks. Since we
already are handling \r, or \n, or \r\n as line breaks, \r\n\n will be
considered as a double line breaks. This is an issue because
ff_subtitles_read_text_chunk() will as a result stop extracting a chunk
after just one line.So instead of parsing the SRT by "chunks" (which means splitting every
double LB), this new parser is detecting timing lines, and split the
events on this basis. While this sounds safe and simple, it needs to
take into account the event number preceding the timing line while
handling situations such as :- event number starting at 0 or actually any number instead of 1
- event numbers not being ordered at all
- event number being followed by text garbage (this really happened,
see Ticket #4898)
- event payload containing one or multiple number (a protagonist saying
a count-down, a date or whatever) which could be confused with a
chapter number
- event number being empty (see Ticket #2167)
- all kind of weird line breaks can appear randomly like wild pokémons
- untrustable line breaks (Ticket #5032)The sample madness.srt tries to sum up most of this into one sample,
ticket5032-rrn.srt is the file containing \r\r\n line breaks. and
empty-events-2167.srt contains empty events. -
mmaldec : limit internal buffering
28 janvier 2016, par wm4mmaldec : limit internal buffering
This uses a new MMAL feature, which limits the number of extra frames
that can be buffered within the decoder. VIDEO_MAX_NUM_CALLBACKS can
be defined as positive or negative number. Positive numbers are
absolute, and can lead to deadlocks if the user underestimates the
number of required buffers. Negative numbers specify the number of extra
buffers, e.g. -1 means no extra buffer, (-1-N) means N extra buffers.Set a gratuitous default of -11 (N=10). This is much lower than the
firmware default, which appears to be 96.This is backwards compatible, but needs a symbol only present in newer
firmware headers. (It’s an enum item, so it requires a check in
configure.)