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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, 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 (...) -
Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)
Sur d’autres sites (11061)
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Invalid NAL unit size for MP4 created from NALU with 3-byte start code (0x000001)
9 septembre 2020, par rscI have a mp4 muxer that works fine when the H264 NALU has the 4-byte start code (0x00000001). I am adapting it to support 3-byte start code (0x000001) but I am stuck with a bug that I am not able to identify. The MP4 generated open in VLC and MediaPlayer but no video is displayed. In VLC statistics shows that it is decoding blocks but stays with 0 frames displayed.


I then ran a error analyzer using ffmpeg (ffmpeg -v error -i myvideo.mp4 -f null - 2>error.log that shows me the following output :


[h264 @ 0x7fa3b5003200] Invalid NAL unit size (158559 > 158558).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9338 > 9337).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (6582 > 6581).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (8300 > 8299).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9336 > 9335).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9422 > 9421).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (10448 > 10447).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9208 > 9207).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (8776 > 8775).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (11376 > 11375).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (158311 > 158310).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9164 > 9163).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (7994 > 7993).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9974 > 9973).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9282 > 9281).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.
[h264 @ 0x7fa3b5003200] Invalid NAL unit size (9656 > 9655).
[h264 @ 0x7fa3b5003200] Error splitting the input into NAL units.


I am trying to find why it is complaining about 1 byte difference in all mdat boxes. Also, the smaller values (e.g : 158558) are 12 bytes lower than the size written inside the mdat header.


Anyone could help indicate why that error is happening ? The same code is working fine to create MP4 with 4-byte NALU start code.


UPDATE : I ran ffprobe and it provides a few more details, more specifically saying that couldn't find the "codec parameters" :


$ ffprobe -analyzeduration 2147483647 -probesize 2147483647 -i myvideo.mp4 
ffprobe version 4.3.1 Copyright (c) 2007-2020 the FFmpeg developers
 built with Apple clang version 11.0.3 (clang-1103.0.32.62)
 configuration: --prefix=/usr/local/Cellar/ffmpeg/4.3.1 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
 libavutil 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
 libpostproc 55. 7.100 / 55. 7.100
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147087 > 147086).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8104 > 8103).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9752 > 9751).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12058 > 12057).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9026 > 9025).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12032 > 12031).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12566 > 12565).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7906 > 7905).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9758 > 9757).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12840 > 12839).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (146771 > 146770).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7708 > 7707).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9524 > 9523).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12230 > 12229).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9080 > 9079).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12164 > 12163).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12650 > 12649).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7916 > 7915).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9736 > 9735).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (13086 > 13085).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147143 > 147142).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8218 > 8217).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9908 > 9907).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12450 > 12449).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7806 > 7805).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9598 > 9597).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12692 > 12691).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9782 > 9781).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12930 > 12929).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12750 > 12749).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (146911 > 146910).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8182 > 8181).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9494 > 9493).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12268 > 12267).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8898 > 8897).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11946 > 11945).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12622 > 12621).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8108 > 8107).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9754 > 9753).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12110 > 12109).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147067 > 147066).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7726 > 7725).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9424 > 9423).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12078 > 12077).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8976 > 8975).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11686 > 11685).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11940 > 11939).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9274 > 9273).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11950 > 11949).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11702 > 11701).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147021 > 147020).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7686 > 7685).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9572 > 9571).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11810 > 11809).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11584 > 11583).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9116 > 9115).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11986 > 11985).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11390 > 11389).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9008 > 9007).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11768 > 11767).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147347 > 147346).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7618 > 7617).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9266 > 9265).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12046 > 12045).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11562 > 11561).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8898 > 8897).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11672 > 11671).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11458 > 11457).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8850 > 8849).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11452 > 11451).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147213 > 147212).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7540 > 7539).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9610 > 9609).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12302 > 12301).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9154 > 9153).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11868 > 11867).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12054 > 12053).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7508 > 7507).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9136 > 9135).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11812 > 11811).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147089 > 147088).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7800 > 7799).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9482 > 9481).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12244 > 12243).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9198 > 9197).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11962 > 11961).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12386 > 12385).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7618 > 7617).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (8996 > 8995).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11800 > 11799).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147135 > 147134).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7934 > 7933).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9742 > 9741).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12398 > 12397).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7540 > 7539).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9130 > 9129).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12482 > 12481).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12002 > 12001).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11710 > 11709).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11886 > 11885).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147303 > 147302).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7620 > 7619).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9316 > 9315).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12138 > 12137).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9056 > 9055).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11968 > 11967).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11942 > 11941).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9072 > 9071).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11546 > 11545).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (11368 > 11367).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (147363 > 147362).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (7578 > 7577).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9466 > 9465).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (12230 > 12229).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[h264 @ 0x7fa85f800e00] Invalid NAL unit size (9248 > 9247).
[h264 @ 0x7fa85f800e00] Error splitting the input into NAL units.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fa85f000000] decoding for stream 0 failed
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fa85f000000] Could not find codec parameters for stream 0 (Video: h264 (avc1 / 0x31637661), none, 1280x960, 1717 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'myvideo.mp4':
 Metadata:
 major_brand : iso5
 minor_version : 512
 compatible_brands: iso6mp41
 Duration: 00:00:13.22, start: 0.000000, bitrate: 1726 kb/s
 Stream #0:0(und): Video: h264 (avc1 / 0x31637661), none, 1280x960, 1717 kb/s, 8.70 fps, 9.25 tbr, 90k tbn, 180k tbc (default)
 Metadata:
 handler_name : VideoHandle


-
Getting error "DLL load failed while importing rect : %1 is not a valid Win32 application" while importing package
17 août 2020, par Sagar DonadkarI am using cython package to call Cpp API and in my cpp code i am using ffmpeg library and able to build my code successfully using bellow command


python setup.py build_ext --inplace --compiler=msvc


but when i try to import generated pyd file then i get error


PS D:\SiVUE\Backend\Cython\demo> python
Python 3.8.3 (tags/v3.8.3:6f8c832, May 13 2020, 22:20:19) [MSC v.1925 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import rect
Traceback (most recent call last):
 File "<stdin>", line 1, in <module>
ImportError: DLL load failed while importing rect: %1 is not a valid Win32 application.
>>> 
</module></stdin>

My entire code is provided bellow


header file
#ifndef RECTANGLE_H
#define RECTANGLE_H
#include <iostream>

extern "C"
{
 #include "libavformat/avformat.h"
 #include "libavutil/dict.h"
}

using namespace std;

namespace shapes 
{
 class Rectangle {
 public:
 int x0, y0, x1, y1;
 Rectangle();
 Rectangle(int x0, int y0, int x1, int y1);
 ~Rectangle();
 int getArea();
 int ffmpegFile();
 void getSize(int* width, int* height);
 void move(int dx, int dy);
 };
}

#endif
</iostream>

Rectangle.Cpp file in ffmpegFile() i am calling mostly ffmpeg API



#include <iostream>
#include "Rectangle.hpp"

namespace shapes {
 

 // Default constructor
 Rectangle::Rectangle () {}

 // Overloaded constructor
 Rectangle::Rectangle (int x0, int y0, int x1, int y1) {
 this->x0 = x0;
 this->y0 = y0;
 this->x1 = x1;
 this->y1 = y1;
 }

 // Destructor
 Rectangle::~Rectangle () {}

 // Return the area of the rectangle
 int Rectangle::getArea () {
 return 10;
 }

 // Get the size of the rectangle.
 // Put the size in the pointer args
 void Rectangle::getSize (int *width, int *height) {
 (*width) = x1 - x0;
 (*height) = y1 - y0;
 }

 // Move the rectangle by dx dy
 void Rectangle::move (int dx, int dy) {
 this->x0 += dx;
 this->y0 += dy;
 this->x1 += dx;
 this->y1 += dy;
 }
 int Rectangle::ffmpegFile()
 {
 AVFormatContext *fmt_ctx = NULL;
 AVDictionaryEntry *tag = NULL;
 int ret = 0;
 char* filename = "D:\\Discovery.mp4";

 if ((ret = avformat_open_input(&fmt_ctx, filename, NULL, NULL)))
 return ret;

 if ((ret = avformat_find_stream_info(fmt_ctx, NULL)) < 0) {
 av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
 return ret;
 }

 while ((tag = av_dict_get(fmt_ctx->metadata, "", tag, AV_DICT_IGNORE_SUFFIX)))
 printf("%s=%s\n", tag->key, tag->value);

 avformat_close_input(&fmt_ctx);
 return ret;
 }
}
</iostream>

Rectangle.pxd file declaration for cpp file function and variable


cdef extern from "Rectangle.cpp":
 pass
cdef extern from "Rectangle.hpp" namespace "shapes":
 cdef cppclass Rectangle:
 Rectangle() except +
 Rectangle(int, int, int, int) except +
 int x0, y0, x1, y1
 int getArea()
 void getSize(int* width, int* height)
 void move(int, int)
 int ffmpegFile()


rect.pyx file i am calling cpp API


# distutils: language = c++

from Rectangle cimport Rectangle

cdef class PyRectangle:
 cdef Rectangle c_rect # Hold a C++ instance which we're wrapping

 def __cinit__(self, int x0, int y0, int x1, int y1):
 self.c_rect = Rectangle(x0, y0, x1, y1)

 def get_area(self):
 return self.c_rect.getArea()

 def get_size(self):
 cdef int width, height
 self.c_rect.getSize(&width, &height)
 return width, height

 def move(self):
 print(self.c_rect.ffmpegFile())


setup.py
I provided pyx file and ffmpeg library path as well as include path


from distutils.core import setup
from setuptools import Extension
from Cython.Build import cythonize 

sfc_module = [Extension('rect', sources = ['rect.pyx'],
 include_dirs = ['D:\\SiVUE\\Backend\\Cython\\demo\\ffmpeg\\include\\'],
 library_dirs = ['D:\\SiVUE\\Backend\\Cython\\demo\\ffmpeg\\lib\\'],
 libraries = ['avcodec','avdevice','avfilter','avformat','avutil','postproc','swresample','swscale'],
 language='c++')]

setup(name = 'superfastcode', version = '1.0',
 description = 'Python Package with superfastcode C++ extension',
 ext_modules = cythonize(sfc_module),
 include_dirs = ['D:\\SiVUE\\Backend\\Cython\\demo\\ffmpeg\\include\\']
 )


Thank You


-
Sound is lost when concatenate several videos with ffmpeg
18 août 2020, par Yevhenii MolodtsovI have a python script that generates an FFmpeg command and then runs it with shell.
Everything is going okay (the videos are concatenated, the needed cross-dissolve effect is also great), but there are two problems I am trying to fix :


- 

- The output loses the sound.
- The output is frizzing a little bit (it seems like there are about 10 fps).






The example of command generatede by the script is here :


ffmpeg -i /tmp/media/import-2020-Aug-18-Tuesday-08-31-10/temp_8ce3c8ac-
1379-4a16-b141-ebdc910e1142.mp4 -i /tmp/media/import-2020-Aug-18-
Tuesday-08-31-10/temp_d9f60ffb-0a83-4052-8ebb-620a574d1871.mp4 -i 
/tmp/media/import-2020-Aug-18-Tuesday-08-31-10/temp_93934eaa-9589-4736-
8d11-fd8c1bdf0b92.mp4 -filter_complex "
[0:v]trim=start=0:end=4.038,setpts=PTS-STARTPTS[clip0];
[1:v]trim=start=2:end=4.038,setpts=PTS-STARTPTS[clip1];
[2:v]trim=start=2,setpts=PTS-STARTPTS[clip2];
[0:v]trim=start=5.038:end=6.038,setpts=PTS-STARTPTS[out0];
[1:v]trim=start=5.038:end=6.038,setpts=PTS-STARTPTS[out1];
[1:v]trim=start=0:end=2,setpts=PTS-STARTPTS[in1];
[2:v]trim=start=0:end=2,setpts=PTS-STARTPTS[in2];
[in1]format=pix_fmts=yuva420p,fade=t=in:st=0:d=2:alpha=1[fadein1];
[in2]format=pix_fmts=yuva420p,fade=t=in:st=0:d=2:alpha=1[fadein2];
[out0]format=pix_fmts=yuva420p,fade=t=out:st=0:d=2:alpha=1[fadeout0];
[out1]format=pix_fmts=yuva420p,fade=t=out:st=0:d=2:alpha=1[fadeout1];
[fadein1]fifo[fadein1fifo];[fadein2]fifo[fadein2fifo];
[fadeout0]fifo[fadeout0fifo];[fadeout1]fifo[fadeout1fifo];[fadeout0fifo]
[fadein1fifo]overlay[crossfade0];[fadeout1fifo]
[fadein2fifo]overlay[crossfade1];[clip0][crossfade0][clip1][crossfade1]
[clip2]concat=n=5[output]" -map "[output]" 
/tmp/media/final/some_filename_c8e898b2-e3f7-4656-b3b9-1e8fb93cd75c.mp4


I would much appreciate any help because I am new to this tool and here I got stuck.


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