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 -/ticket

Autres articles (14)

Taille des images et des logos définissables

9 février 2011, par kent1

Dans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)
Configuration spécifique d’Apache

4 février 2011, par kent1

Modules spécifiques
Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
Création d’un (...)
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 (...)

1 | 2 | 3 | 4 | 5

Sur d’autres sites (4767)

Flutter streaming with FFmpeg_flutter_kit not reaching server

22 juillet 2024, par Julio Cesar Reis
I'm trying to stream my flutter screen to youtube using FFmpeg flutter kit. Everything seems fine but the output never reaches youtube server.



1. log in using Yt flutter package.
  
  
  
2. create a broadcast
  
  
  
3. create the livestream and bind it to the broadcast
  
  
  
4. get the ingestion address through LiveStreamItem.cdn.ingestionInfo.ingestionAddress
  
  
  
5. stream the frames saved through FFmpeg :
  
  
  
  
  final String rtmpUrl = "ls.cdn.ingestionInfo.ingestionAddress"
  
  
  
  
  final String command = '-re -i $framePath -c:v libx264 -f flv $rtmpUrl';
  
  
  
  
  await FFmpegKit.execute(command);
  
  
  



But at the end I get errors like SESSION_NOT_FOUND, or the stream never reaches the server which keeps my broadcast as ready and not active so I can't go live.




I've tried using the ingestionAddress plus the streamName separated by a slash, I've tried the direct stream using rtmp ://x.rtmp.youtube.com/live2/MY_API_KEY but none of that worked.




ERROR LOG :





I/flutter (19889) : ffmpeg version n6.0 I/flutter (19889) : Copyright
(c) 2000-2023 the FFmpeg developers I/flutter (19889) : I/flutter
(19889) : built with Android (7155654, based on r399163b1) clang
version 11.0.5
(https://android.googlesource.com/toolchain/llvm-project
87f1315dfbea7c137aa2e6d362dbb457e388158d) I/flutter (19889) :

configuration : —cross-prefix=aarch64-linux-android-
—sysroot=/Users/sue/Library/Android/sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/darwin-x86_64/sysroot
—prefix=/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/ffmpeg
—pkg-config=/opt/homebrew/bin/pkg-config —enable-version3 —arch=aarch64 —cpu=armv8-a —target-os=android —enable-neon —enable-asm —enable-inline-asm —ar=aarch64-linux-android-ar —cc=aarch64-linux-android24-clang —cxx=aarch64-linux-android24-clang++ —ranlib=aarch64-linux-android-ranlib —strip=aarch64-linux-android-strip —nm=aarch64-linux-android-nm —extra-libs='-L/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib
-lndk_compat' —disable-autodetect —enable-cross-compile —enable-pic —enable-jni —enable-optimizations —enable-swscale —disable-static —enable-shared —enable-pthreads —enable-v4l2-m2m —disable-outdev=fbdev —disable-indev=fbdev —enable-small —disable-xmm-clobber-test —disable-debug —enable-lto —disable-neon I/flutter (19889) : libavutil 58. 2.100 / 58. 2.100 I/flutter
(19889) : libavcodec 60. 3.100 / 60. 3.100 I/flutter (19889) :

libavformat 60. 3.100 / 60. 3.100 I/flutter (19889) :

libavdevice 60. 1.100 / 60. 1.100 I/flutter (19889) :

libavfilter 9. 3.100 / 9. 3.100 I/flutter (19889) : libswscale
7. 1.100 / 7. 1.100 I/flutter (19889) : libswresample 4. 10.100 / 4. 10.100 I/flutter (19889) : Input #0, png_pipe, from
'/data/user/0/com.example.poc_stream/cache/frame.png' : I/flutter
(19889) : Duration : I/flutter (19889) : N/A I/flutter (19889) : ,
bitrate : I/flutter (19889) : N/A I/flutter (19889) : I/flutter
(19889) : Stream #0:0 I/flutter (19889) : : Video : png, rgba(pc),
412x771 I/flutter (19889) : , I/flutter (19889) : 25 fps, I/flutter
(19889) : 25 tbr, I/flutter (19889) : 25 tbn I/flutter (19889) :
E/flutter (19889) : [ERROR:flutter/runtime/dart_vm_initializer.cc(41)]
Unhandled Exception : PlatformException(SESSION_NOT_FOUND, Session not
found., null, null) E/flutter (19889) : #0

StandardMethodCodec.decodeEnvelope
(package:flutter/src/services/message_codecs.dart:648:7) E/flutter
(19889) : #1 MethodChannel._invokeMethod
(package:flutter/src/services/platform_channel.dart:334:18) E/flutter
(19889) : E/flutter (19889) : #2

FFmpegKitFactory.mapToNullableSession
(package:ffmpeg_kit_flutter_min_gpl/src/ffmpeg_kit_factory.dart:76:3)
E/flutter (19889) : E/flutter (19889) : #3

FFmpegKitInitializer._processCompleteCallbackEvent.
(package:ffmpeg_kit_flutter_min_gpl/src/ffmpeg_kit_flutter_initializer.dart:213:48)
E/flutter (19889) : E/flutter (19889) :
I/flutter (19889) : Stream mapping : I/flutter (19889) : Stream #0:0 ->
#0:0 I/flutter (19889) : (png (native) -> h264 (libx264)) I/flutter (19889) : I/flutter (19889) : Press [q] to stop, [?] for help I/flutter
(19889) : [libx264 @ 0xb40000736398c190] using cpu capabilities : ARMv8
NEON I/flutter (19889) : [libx264 @ 0xb400007363a92e40] using cpu
capabilities : ARMv8 NEON I/flutter (19889) : [libx264 @
0xb40000736398c190] profile High 4:4:4 Predictive, level 3.0, 4:4:4,
8-bit I/flutter (19889) : [libx264 @ 0xb40000736398c190] 264 - core 164



- H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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=4 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=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 I/flutter (19889) : Output #0, flv, to
  'rtmp ://x.rtmp.youtube.com/live2/x7k6-grm1-z15w-tqb7-akrt' : I/flutter
  (19889) : Metadata : I/flutter (19889) : encoder :
  I/flutter (19889) : Lavf60.3.100 I/flutter (19889) : I/flutter (19889) :
  Stream #0:0 I/flutter (19889) : : Video : h264 ([7][0][0][0] / 0x0007),
  yuv444p(tv, unknown/bt709/iec61966-2-1, progressive), 412x771, q=2-31
  I/flutter (19889) : , I/flutter (19889) : 25 fps, I/flutter (19889) :
  1k tbn I/flutter (19889) : I/flutter (19889) : Metadata : I/flutter
  (19889) : encoder : I/flutter (19889) : Lavc60.3.100
  libx264 I/flutter (19889) : I/flutter (19889) : Side data :
  I/flutter (19889) : I/flutter (19889) : cpb : I/flutter (19889) :
  bitrate max/min/avg : 0/0/0 buffer size : 0 I/flutter (19889) :
  vbv_delay : N/A I/flutter (19889) : I/flutter (19889) : Instance of
  'Statistics' I/flutter (19889) : frame= 0 fps=0.0 q=0.0 size=
  
  0kB time=N/A bitrate=N/A speed=N/A I/flutter (19889) : [libx264 @
  0xb400007363a92e40] profile High 4:4:4 Predictive, level 3.0, 4:4:4,
  8-bit I/flutter (19889) : [libx264 @ 0xb400007363a92e40] 264 - core 164
- H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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=4 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=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 I/flutter (19889) : Output #0, flv, to
  'rtmp ://x.rtmp.youtube.com/live2/x7k6-grm1-z15w-tqb7-akrt' : I/flutter
  (19889) : Metadata : I/flutter (19889) : encoder :
  I/flutter (19889) : Lavf60.3.100 I/flutter (19889) : I/flutter (19889) :
  Stream #0:0 I/flutter (19889) : : Video : h264 ([7][0][0][0] / 0x0007),
  yuv444p(tv, unknown/bt709/iec61966-2-1, progressive), 412x771, q=2-31
  I/flutter (19889) : , I/flutter (19889) : 25 fps, I/flutter (19889) :
  1k tbn I/flutter (19889) : I/flutter (19889) : Metadata : I/flutter
  (19889) : encoder : I/flutter (19889) : Lavc60.3.100
  libx264 I/flutter (19889) : I/flutter (19889) : Side data :
  I/flutter (19889) : I/flutter (19889) : cpb : I/flutter (19889) :
  bitrate max/min/avg : 0/0/0 buffer size : 0 I/flutter (19889) :
  vbv_delay : N/A I/flutter (19889) : I/flutter (19889) : Instance of
  'Statistics' I/flutter (19889) : frame= 0 fps=0.0 q=0.0 size=
  
  0kB time=N/A bitrate=N/A speed=N/A I/flutter (19889) : [flv @
  0xb4000074238c1c30] Failed to update header with correct duration.
  I/flutter (19889) : [flv @ 0xb4000074238c1c30] Failed to update header
  with correct filesize. I/flutter (19889) : Instance of 'Statistics'
  I/flutter (19889) : frame= 1 fps=0.0 q=28.0 Lsize= 4kB
  time=00:00:00.00 bitrate=N/A speed= 0x I/flutter (19889) :
  video:4kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
  muxing overhead : I/flutter (19889) : 8.895621% I/flutter (19889) :
  I/flutter (19889) : [libx264 @ 0xb40000736398c190] frame I:1 Avg
  QP:14.17 size : 2957 I/flutter (19889) : [libx264 @
  0xb40000736398c190] mb I I16..4 : 1.4% 93.3% 5.3% I/flutter (19889) :
  [libx264 @ 0xb40000736398c190] 8x8 transform intra:93.3% I/flutter
  (19889) : [libx264 @ 0xb40000736398c190] coded y,u,v intra : 3.4% 1.4%
  1.7% I/flutter (19889) : [libx264 @ 0xb40000736398c190] i16 v,h,dc,p : 78% 17% 6% 0% I/flutter (19889) : [libx264 @ 0xb40000736398c190] i8
  v,h,dc,ddl,ddr,vr,hd,vl,hu : 36% 0% 64% 0% 0% 0% 0% 0% 0%
  I/flutter (19889) : [libx264 @ 0xb40000736398c190] i4
  v,h,dc,ddl,ddr,vr,hd,vl,hu : 49% 21% 14% 1% 3% 4% 3% 2% 3%
  I/flutter (19889) : [libx264 @ 0xb40000736398c190] kb/s:591.40
  I/flutter (19889) : ffmpeg version n6.0 I/flutter (19889) : Copyright
  (c) 2000-2023 the FFmpeg developers I/flutter (19889) : I/flutter
  (19889) : built with Android (7155654, based on r399163b1) clang
  version 11.0.5
  (https://android.googlesource.com/toolchain/llvm-project 87f1315dfbea7c137aa2e6d362dbb457e388158d) I/flutter (19889) :
  
  configuration : —cross-prefix=aarch64-linux-android-
  —sysroot=/Users/sue/Library/Android/sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/darwin-x86_64/sysroot
  —prefix=/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/ffmpeg
  —pkg-config=/opt/homebrew/bin/pkg-config —enable-version3 —arch=aarch64 —cpu=armv8-a —target-os=android —enable-neon —enable-asm —enable-inline-asm —ar=aarch64-linux-android-ar —cc=aarch64-linux-android24-clang —cxx=aarch64-linux-android24-clang++ —ranlib=aarch64-linux-android-ranlib —strip=aarch64-linux-android-strip —nm=aarch64-linux-android-nm —extra-libs='-L/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib
  -lndk_compat' —disable-autodetect —enable-cross-compile —enable-pic —enable-jni —enable-optimizations —enable-swscale —disable-static —enable-shared —enable-pthreads —enable-v4l2-m2m —disable-outdev=fbdev —disable-indev=fbdev —enable-small —disable-xmm-clobber-test —disable-debug —enable-lto —disable-neon I/flutter (19889) : libavutil 58. 2.100 / 58. 2.100 I/flutter
  (19889) : libavcodec 60. 3.100 / 60. 3.100 I/flutter (19889) :
  
  libavformat 60. 3.100 / 60. 3.100 I/flutter (19889) :
  
  libavdevice 60. 1.100 / 60. 1.100 I/flutter (19889) :
  
  libavfilter 9. 3.100 / 9. 3.100 I/flutter (19889) : libswscale


1. 1.100 / 7. 1.100 I/flutter (19889) : libswresample 4. 10.100 / 4. 10.100 I/flutter (19889) : [flv @ 0xb4000074238dac30] Failed to
  update header with correct duration. I/flutter (19889) : [flv @
  0xb4000074238dac30] Failed to update header with correct filesize.
  I/flutter (19889) : Instance of 'Statistics' I/flutter (19889) : frame=
  1 fps=0.0 q=28.0 Lsize= 4kB time=00:00:00.00 bitrate=N/A speed=
  0x I/flutter (19889) : video:4kB audio:0kB subtitle:0kB other
  streams:0kB global headers:0kB muxing overhead : I/flutter (19889) :
  8.895621% I/flutter (19889) : I/flutter (19889) : Input #0, png_pipe, from '/data/user/0/com.example.poc_stream/cache/frame.png' : I/flutter
  (19889) : Duration : I/flutter (19889) : N/A I/flutter (19889) : ,
  bitrate : I/flutter (19889) : N/A I/flutter (19889) : I/flutter
  (19889) : Stream #0:0 I/flutter (19889) : : Video : png, rgba(pc),
  412x771 I/flutter (19889) : , I/flutter (19889) : 25 fps, I/flutter
  (19889) : 25 tbr, I/flutter (19889) : 25 tbn I/flutter (19889) :
  I/flutter (19889) : [libx264 @ 0xb400007363a92e40] frame I:1 Avg
  QP:14.17 size : 2957 I/flutter (19889) : [libx264 @
  0xb400007363a92e40] mb I I16..4 : 1.4% 93.3% 5.3% I/flutter (19889) :
  [libx264 @ 0xb400007363a92e40] 8x8 transform intra:93.3% I/flutter
  (19889) : [libx264 @ 0xb400007363a92e40] coded y,u,v intra : 3.4% 1.4%
  1.7% I/flutter (19889) : [libx264 @ 0xb400007363a92e40] i16 v,h,dc,p : 78% 17% 6% 0% I/flutter (19889) : [libx264 @ 0xb400007363a92e40] i8
  v,h,dc,ddl,ddr,vr,hd,vl,hu : 36% 0% 64% 0% 0% 0% 0% 0% 0%
  I/flutter (19889) : [libx264 @ 0xb400007363a92e40] i4
  v,h,dc,ddl,ddr,vr,hd,vl,hu : 49% 21% 14% 1% 3% 4% 3% 2% 3%
  I/flutter (19889) : [libx264 @ 0xb400007363a92e40] kb/s:591.40
  I/flutter (19889) : ffmpeg version n6.0 I/flutter (19889) : Copyright
  (c) 2000-2023 the FFmpeg developers I/flutter (19889) : I/flutter
  (19889) : built with Android (7155654, based on r399163b1) clang
  version 11.0.5
  (https://android.googlesource.com/toolchain/llvm-project
  87f1315dfbea7c137aa2e6d362dbb457e388158d) I/flutter (19889) :
  
  configuration : —cross-prefix=aarch64-linux-android-
  —sysroot=/Users/sue/Library/Android/sdk/ndk/22.1.7171670/toolchains/llvm/prebuilt/darwin-x86_64/sysroot
  —prefix=/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/ffmpeg
  —pkg-config=/opt/homebrew/bin/pkg-config —enable-version3 —arch=aarch64 —cpu=armv8-a —target-os=android —enable-neon —enable-asm —enable-inline-asm —ar=aarch64-linux-android-ar —cc=aarch64-linux-android24-clang —cxx=aarch64-linux-android24-clang++ —ranlib=aarch64-linux-android-ranlib —strip=aarch64-linux-android-strip —nm=aarch64-linux-android-nm —extra-libs='-L/Users/sue/Projects/arthenica/ffmpeg-kit/prebuilt/android-arm64/cpu-features/lib
  -lndk_compat' —disable-autodetect —enable-cross-compile —enable-pic —enable-jni —enable-optimizations —enable-swscale —disable-static —enable-shared —enable-pthreads —enable-v4l2-m2m —disable-outdev=fbdev —disable-indev=fbdev —enable-small —disable-xmm-clobber-test —disable-debug —enable-lto —disable-neon I/flutter (19889) : libavutil 58. 2.100 / 58. 2.100 I/flutter
  (19889) : libavcodec 60. 3.100 / 60. 3.100 I/flutter (19889) :
  
  libavformat 60. 3.100 / 60. 3.100 I/flutter (19889) :
  
  libavdevice 60. 1.100 / 60. 1.100 I/flutter (19889) :
  
  libavfilter 9. 3.100 / 9. 3.100 I/flutter (19889) : libswscale
2. 1.100 / 7. 1.100 I/flutter (19889) : libswresample 4. 10.100 / 4. 10.100 I/flutter (19889) : Input #0, png_pipe, from
  '/data/user/0/com.example.poc_stream/cache/frame.png' : E/flutter
  (19889) : [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled
  Exception : PlatformException(SESSION_NOT_FOUND, Session not found.,
  null, null) E/flutter (19889) : #0
  
  StandardMethodCodec.decodeEnvelope
  (package:flutter/src/services/message_codecs.dart:648:7) E/flutter
  (19889) : #1 MethodChannel._invokeMethod
  (package:flutter/src/services/platform_channel.dart:334:18) E/flutter
  (19889) : E/flutter (19889) : #2
  
  FFmpegKitFactory.mapToNullableSession
  (package:ffmpeg_kit_flutter_min_gpl/src/ffmpeg_kit_factory.dart:76:3)
  E/flutter (19889) : E/flutter (19889) : #3
  
  FFmpegKitInitializer._processCompleteCallbackEvent.
  (package:ffmpeg_kit_flutter_min_gpl/src/ffmpeg_kit_flutter_initializer.dart:213:48)
  E/flutter (19889) : E/flutter (19889) :
  I/flutter (19889) : Duration : I/flutter (19889) : N/A I/flutter
  (19889) : , bitrate : I/flutter (19889) : N/A I/flutter (19889) :
  I/flutter (19889) : Stream #0:0 I/flutter (19889) : : Video : png,
  rgba(pc), 412x771 I/flutter (19889) : , I/flutter (19889) : 25 fps,
  I/flutter (19889) : 25 tbr, I/flutter (19889) : 25 tbn I/flutter
  (19889) : E/flutter (19889) :
  [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled
  Exception : PlatformException(SESSION_NOT_FOUND, Session not found.,
  null, null) E/flutter (19889) : #0
  
  StandardMethodCodec.decodeEnvelope
  (package:flutter/src/services/message_codecs.dart:648:7) E/flutter
  (19889) : #1 MethodChannel._invokeMethod
  (package:flutter/src/services/platform_channel.dart:334:18) E/flutter
  (19889) : E/flutter (19889) : #2
  
  FFmpegKitFactory.mapToNullableSession
  (package:ffmpeg_kit_flutter_min_gpl/src/ffmpeg_kit_factory.dart:76:3)
  E/flutter (19889) : E/flutter (19889) : #3
  
  FFmpegKitInitializer._processCompleteCallbackEvent.
  (package:ffmpeg_kit_flutter_min_gpl/src/ffmpeg_kit_flutter_initializer.dart:213:48)
  E/flutter (19889) : E/flutter (19889) :
  I/flutter (19889) : yzsFZWrI_Iw I/flutter (19889) : currentBc :
  yzsFZWrI_Iw I/flutter (19889) : Stream mapping : I/flutter (19889) :
  
  Stream #0:0 -> #0:0 I/flutter (19889) : (png (native) -> h264
  (libx264)) I/flutter (19889) : I/flutter (19889) : Press [q] to stop,
  [?] for help I/flutter (19889) : Stream mapping : I/flutter (19889) :
  
  Stream #0:0 -> #0:0 I/flutter (19889) : (png (native) -> h264
  (libx264)) I/flutter (19889) : I/flutter (19889) : Press [q] to stop,
  [?] for help I/flutter (19889) : [libx264 @ 0xb4000073639665d0] using
  cpu capabilities : ARMv8 NEON I/flutter (19889) : [libx264 @
  0xb4000073639665d0] profile High 4:4:4 Predictive, level 3.0, 4:4:4,
  8-bit I/flutter (19889) : [libx264 @ 0xb4000073639665d0] 264 - core 164


- H.264/MPEG-4 AVC codec - Copyleft 2003-2023 - 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=4 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=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 I/flutter (19889) : Output #0, flv, to
  'rtmp ://x.rtmp.youtube.com/live2/x7k6-grm1-z15w-tqb7-akrt' : I/flutter
  (19889) : Metadata : I/flutter (19889) : encoder :
  I/flutter (19889) : Lavf60.3.100 I/flutter (19889) : I/flutter (19889) :
  Stream #0:0 I/flutter (19889) : : Video : h264 ([7][0][0][0] / 0x0007),
  yuv444p(tv, unknown/bt709/iec61966-2-1, progressive), 412x771, q=2-31
  I/flutter (19889) : , I/flutter (19889) : 25 fps, I/flutter (19889) :
  1k tbn I/flutter (19889) : I/flutter (19889) : Metadata : I/flutter
  (19889) : encoder : I/flutter (19889) : Lavc60.3.100
  libx264 I/flutter (19889) :

Error using ffmpeg image2pipe with phantomjs to render video from webpage screenshots

14 novembre 2016, par user1690179

I am trying to use phantomjs with ffmpeg to complie videos from screenshots of a webpage as described here :
https://groups.google.com/forum/# !msg/phantomjs/wluVGGjhL90/oGBXqh7QP44J

I have the following test.js file :

var page = require('webpage').create();



page.clipRect = { top: 0, left: 0, width: 900, height: 800};

page.viewportSize = { width: 900, height: 800};



var url = 'http://dl.dropbox.com/u/621993/voronoi/voronoi.html';

var frames = 100;



page.open(url, function(){

    setInterval(function(){

        page.render('/dev/stdout');



        if( frames == 0 ){

            phantom.exit();

        }



        frames--;



    }, 100);

});

Then I run this command, taken from the link above :

$ phantomjs test.js |ffmpeg -c:v png -f image2pipe -r 10 -sameq -i - -y test.mp4

Including -sameq causes an error in ffmpeg, so I took it out and ran :

$ phantomjs test.js |ffmpeg -c:v png -f image2pipe -r 10 -i - -y test.mp4

I get the following output from ffmpeg :

ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers

  built on Jul 22 2013 09:14:18 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)

  configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --arch=x86_64 --enable-runtime-cpudetect

  libavutil      52. 38.100 / 52. 38.100

  libavcodec     55. 18.102 / 55. 18.102

  libavformat    55. 12.100 / 55. 12.100

  libavdevice    55.  3.100 / 55.  3.100

  libavfilter     3. 79.101 /  3. 79.101

  libswscale      2.  3.100 /  2.  3.100

  libswresample   0. 17.102 /  0. 17.102

  libpostproc    52.  3.100 / 52.  3.100

Input #0, image2pipe, from 'pipe:':

  Duration: N/A, bitrate: N/A

    Stream #0:0: Video: png, rgba, 900x800 [SAR 2835:2835 DAR 9:8], 10 fps, 10 tbr, 10 tbn, 10 tbc

No pixel format specified, yuv444p for H.264 encoding chosen.

Use -pix_fmt yuv420p for compatibility with outdated media players.

[libx264 @ 0x7f8973803800] using SAR=1/1

[libx264 @ 0x7f8973803800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX

[libx264 @ 0x7f8973803800] profile High 4:4:4 Predictive, level 3.1, 4:4:4 8-bit

[libx264 @ 0x7f8973803800] 264 - core 133 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=4 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=10 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 'test.mp4':

  Metadata:

    encoder         : Lavf55.12.100

    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 900x800 [SAR 1:1 DAR 9:8], q=-1--1, 10240 tbn, 10 tbc

Stream mapping:

  Stream #0:0 -> #0:0 (png -> libx264)

pipe:: Input/output error0 size=      65kB time=00:00:04.10 bitrate= 130.5kbits/s    

frame=   93 fps= 15 q=-1.0 Lsize=      71kB time=00:00:09.10 bitrate=  63.8kbits/s    

video:69kB audio:0kB subtitle:0 global headers:0kB muxing overhead 2.696543%

[libx264 @ 0x7f8973803800] frame I:1     Avg QP:15.17  size: 50212

[libx264 @ 0x7f8973803800] frame P:24    Avg QP: 8.91  size:   575

[libx264 @ 0x7f8973803800] frame B:68    Avg QP: 9.69  size:    87

[libx264 @ 0x7f8973803800] consecutive B-frames:  2.2%  0.0%  3.2% 94.6%

[libx264 @ 0x7f8973803800] mb I  I16..4: 64.2% 19.6% 16.1%

[libx264 @ 0x7f8973803800] mb P  I16..4:  2.8%  0.2%  0.1%  P16..4:  0.5%  0.0%  0.0%  0.0%  0.0%    skip:96.3%

[libx264 @ 0x7f8973803800] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  3.1%  0.0%  0.0%  direct: 0.0%  skip:96.9%  L0:76.4% L1:23.6% BI: 0.0%

[libx264 @ 0x7f8973803800] 8x8 transform intra:13.9% inter:54.0%

[libx264 @ 0x7f8973803800] coded y,u,v intra: 7.4% 4.8% 5.2% inter: 0.1% 0.1% 0.1%

[libx264 @ 0x7f8973803800] i16 v,h,dc,p: 68% 31%  2%  0%

[libx264 @ 0x7f8973803800] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 48% 20% 32%  0%  0%  0%  0%  0%  0%

[libx264 @ 0x7f8973803800] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 31% 20%  3%  3%  3%  5%  3%  4%

[libx264 @ 0x7f8973803800] Weighted P-Frames: Y:0.0% UV:0.0%

[libx264 @ 0x7f8973803800] ref P L0: 91.9%  0.0%  7.4%  0.7%

[libx264 @ 0x7f8973803800] ref B L0: 20.5% 79.5%

[libx264 @ 0x7f8973803800] ref B L1: 99.9%  0.1%

[libx264 @ 0x7f8973803800] kb/s:60.16

The output test.mp4 file is a blank 10 second video - just a black screen. From what i can tell, I am getting a pipe: : Input/output error from ffmpeg.

I am pretty new to ffmpeg and I have tried changing some parameters and video codecs in the ffmpeg call, but have not found a solution yet. Can anyone advise ?

How to add black frames and keep the framerate ?

3 mars 2020, par Patryk

I have a black image from which I generate videos filled with black color only for specified lengths that I can then concatenate with my destination videos. This is how I produce it :

ffmpeg -loop 1 -i black.png -t 00:00:00.066 \ 

    -c:v libx264 -pix_fmt yuv420p -vf scale=840:480,fps=15 out66ms.mp4

with the following ffmpeg output :

Input #0, png_pipe, from 'black.png':

  Duration: N/A, bitrate: N/A

    Stream #0:0: Video: png, rgba(pc), 608x342 [SAR 5669:5669 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc

Stream mapping:

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

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

[libx264 @ 0x7fadf3826e00] using SAR=64/63

[libx264 @ 0x7fadf3826e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2

[libx264 @ 0x7fadf3826e00] profile High, level 3.0

[libx264 @ 0x7fadf3826e00] 264 - core 155 r2917 0a84d98 - 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=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=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 'out66ms.mp4':

  Metadata:

    encoder         : Lavf58.29.100

    Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 840x480 [SAR 64:63 DAR 16:9], q=-1--1, 15 fps, 15360 tbn, 15 tbc

    Metadata:

      encoder         : Lavc58.54.100 libx264

    Side data:

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

frame=    1 fps=0.0 q=27.0 Lsize=       2kB time=00:00:00.00 bitrate=201107.7kbits/s speed=0.0031x

video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 100.984009%

[libx264 @ 0x7fadf3826e00] frame I:1     Avg QP:12.00  size:   123

[libx264 @ 0x7fadf3826e00] mb I  I16..4: 100.0%  0.0%  0.0%

[libx264 @ 0x7fadf3826e00] 8x8 transform intra:0.0%

[libx264 @ 0x7fadf3826e00] coded y,uvDC,uvAC intra: 0.0% 0.0% 0.0%

[libx264 @ 0x7fadf3826e00] i16 v,h,dc,p: 97%  0%  3%  0%

[libx264 @ 0x7fadf3826e00] i8c dc,h,v,p: 100%  0%  0%  0%

[libx264 @ 0x7fadf3826e00] kb/s:14.76

I’d like to then concatenate it with videos like this one :

ffprobe file.ts

Input #0, mpegts, from 'file.ts':

  Duration: 00:00:06.67, start: 0.000000, bitrate: 1090 kb/s

  Program 1

    Metadata:

      service_name    : Service01

      service_provider: FFmpeg

    Stream #0:0[0x100]: Video: h264 (Baseline) ([27][0][0][0] / 0x001B), yuv420p(progressive), 864x480, 90k tbr, 90k tbn, 180k tbc

but as soon as I concatenate it using concat demuxer like that :

ffmpeg -y -hide_banner \

    -f concat -safe 0 \

    -i &lt;(echo "file '$PWD/out66ms.mp4'"; for f in dir/*.ts; do echo "file '$PWD/$f'"; done) \

    -c copy \

    output.mp

I get this :

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

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    encoder         : Lavf58.29.100

  Duration: 00:01:41.38, start: 0.000000, bitrate: 170 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 840x480 [SAR 64:63 DAR 16:9], 170 kb/s, 2.67 fps, 2.67 tbr, 15360 tbn, 30 tbc (default)

    Metadata:

      handler_name    : VideoHandler

Which has 2.67 fps whereas not adding this empty black video to concatenation gives the following (desired 15 fps) :

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

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    encoder         : Lavf58.29.100

  Duration: 00:00:17.29, start: 0.000000, bitrate: 1001 kb/s

    Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 864x480, 999 kb/s, 15.62 fps, 15.58 tbr, 90k tbn, 180k tbc (default)

    Metadata:

      handler_name    : VideoHandler

EDIT

I’ve tried reencoding instead of copying :

ffmpeg -y -hide_banner \

    -f concat -safe 0 \

    -i &lt;(echo "file '$PWD/out66ms.mp4'"; for f in dir/*.ts; do echo "file '$PWD/$f'"; done) \

    -c:v libx264 -vf scale=840:480,fps=15 \

    output.mp

But I get a similar result :

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

  Metadata:

    major_brand     : isom

    minor_version   : 512

    compatible_brands: isomiso2avc1mp41

    encoder         : Lavf58.29.100

  Duration: 00:01:41.00, start: 0.000000, bitrate: 555 kb/s

    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1680x480 [SAR 64:63 DAR 32:9], 554 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc (default)

    Metadata:

      handler_name    : VideoHandler

even though that the fps is set properly the video is too long and slowed down.

How to properly add those black filled videos to preserve fps or set it to desired value ?

1 | ... | 1305 | 1306 | 1307 | 1308 | 1309 | 1310 | 1311 | 1312 | 1313 | ... | 1589

Recherche avancée

Médias (1)

Bug de détection d’ogg

Autres articles (14)

Taille des images et des logos définissables

Configuration spécifique d’Apache

Supporting all media types

Sur d’autres sites (4767)

Flutter streaming with FFmpeg_flutter_kit not reaching server

Error using ffmpeg image2pipe with phantomjs to render video from webpage screenshots

How to add black frames and keep the framerate ?

Se connecter

Navigation

Syndication

Boussole SPIP