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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (45)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (7561)
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How to merge special ts files to mp4 ? [closed]
21 février 2024, par mikezangI have some ts files and I want to merge them to mp4, I used command as below, some of ts can be merged without any problems.


ffmpeg -i 'concat:01.ts|02.ts|03.ts|' -c copy -bsf:a aac_adtstoasc 01.mp4



Then I found for some ts files, I got error as below when I used the same command above, what can I do to merge these ts files ?


ffmpeg version 2023-11-13-git-67a2571a55-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
 libavutil 58. 32.100 / 58. 32.100
 libavcodec 60. 33.100 / 60. 33.100
 libavformat 60. 17.100 / 60. 17.100
 libavdevice 60. 4.100 / 60. 4.100
 libavfilter 9. 13.100 / 9. 13.100
 libswscale 7. 6.100 / 7. 6.100
 libswresample 4. 13.100 / 4. 13.100
 libpostproc 57. 4.100 / 57. 4.100
[png @ 0000028b191c1cc0] inflate returned error -3
Input #0, png_pipe, from 'concat:001.ts|002.ts|003.ts':
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: png, pal8(pc, gbr/unknown/unknown), 800x800, 25 fps, 25 tbr, 25 tbn
Output #0, mp4, to '01.mp4':
 Metadata:
 encoder : Lavf60.17.100
 Stream #0:0: Video: png (mp4v / 0x7634706D), pal8(pc, gbr/unknown/unknown), 800x800, q=2-31, 25 fps, 25 tbr, 12800 tbn
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[out#0/mp4 @ 0000028b19260cc0] video:0kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
[out#0/mp4 @ 0000028b19260cc0] Output file is empty, nothing was encoded



The successful ts file by ffprobe :


Input #0, mpegts, from '001.ts':
 Duration: 00:00:12.04, start: 0.038000, bitrate: 942 kb/s
 Program 1
 Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn
 Stream #0:1[0x101]: Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 97 kb/s



The failed ts file by ffprobe :


[png @ 000001e9016fe940] inflate returned error -3
Input #0, png_pipe, from '001.ts':
 Duration: N/A, bitrate: N/A
 Stream #0:0: Video: png, pal8(pc, gbr/unknown/unknown), 800x800, 25 fps, 25 tbr, 25 tbn



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Converting `webm` to `mov` format using ffmpeg loses transparency - how can I keep it ?
10 mars 2023, par M.A ShahbaziI am trying to convert a
webm
video tomov
format without losing quality and transparency using the following command :

ffmpeg -c:v libvpx-vp9 -i input.webm ouput.mov



The video gets converted, but it loses transparency and the background of video is black.


I also tried the following command :


ffmpeg -c:v png -i input.webm output.mov



But it gives me the following error output :


libavutil 58. 3.100 / 58. 3.100
 libavcodec 60. 4.100 / 60. 4.100
 libavformat 60. 4.100 / 60. 4.100
 libavdevice 60. 2.100 / 60. 2.100
 libavfilter 9. 4.100 / 9. 4.100
 libswscale 7. 2.100 / 7. 2.100
 libswresample 4. 11.100 / 4. 11.100
 libpostproc 57. 2.100 / 57. 2.100
[png @ 0000028041ca7000] Invalid PNG signature 0x824983420031F031.
[matroska,webm @ 0000028041c91240] Could not find codec parameters for stream 0 (Video: png, none(pc, progressive), 800x800): unspecified pixel format
Consider increasing the value for the 'analyzeduration' (0) and 'probesize' (5000000) options
Input #0, matroska,webm, from 'hero.webm':
 Metadata:
 COMPATIBLE_BRANDS: qt
 creation_time : 2023-02-23T10:43:46.703800Z
 MAJOR_BRAND : qt
 MINOR_VERSION : 537199360
 ENCODER : Lavf59.35.100
 Duration: 00:00:09.00, start: 0.000000, bitrate: 1378 kb/s
 Stream #0:0: Video: png, none(pc, progressive), 800x800, SAR 1:1 DAR 1:1, 24 fps, 24 tbr, 1k tbn
 Metadata:
 alpha_mode : 1
 ENCODER : Lavc59.56.100 libvpx-vp9
 DURATION : 00:00:09.000000000
Stream mapping:
 Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[png @ 0000028041ca7680] Invalid PNG signature 0x824983420031F031.
Error while decoding stream #0:0: Invalid data found when processing input
Cannot determine format of input stream 0:0 after EOF
Error marking filters as finished
Conversion failed!



How can I maintain transparency when converting from
webm
tomov
format ?

Here's the video info in case it can be helpful :


{
 "streams": [
 {
 "index": 0,
 "codec_name": "vp9",
 "codec_long_name": "Google VP9",
 "profile": "Profile 0",
 "codec_type": "video",
 "codec_tag_string": "[0][0][0][0]",
 "codec_tag": "0x0000",
 "width": 800,
 "height": 800,
 "coded_width": 800,
 "coded_height": 800,
 "closed_captions": 0,
 "film_grain": 0,
 "has_b_frames": 0,
 "sample_aspect_ratio": "1:1",
 "display_aspect_ratio": "1:1",
 "pix_fmt": "yuv420p",
 "level": -99,
 "color_range": "tv",
 "field_order": "progressive",
 "refs": 1,
 "r_frame_rate": "24/1",
 "avg_frame_rate": "24/1",
 "time_base": "1/1000",
 "start_pts": 0,
 "start_time": "0.000000",
 "disposition": {
 "default": 0,
 "dub": 0,
 "original": 0,
 "comment": 0,
 "lyrics": 0,
 "karaoke": 0,
 "forced": 0,
 "hearing_impaired": 0,
 "visual_impaired": 0,
 "clean_effects": 0,
 "attached_pic": 0,
 "timed_thumbnails": 0,
 "captions": 0,
 "descriptions": 0,
 "metadata": 0,
 "dependent": 0,
 "still_image": 0
 },
 "tags": {
 "alpha_mode": "1",
 "ENCODER": "Lavc59.56.100 libvpx-vp9",
 "DURATION": "00:00:09.000000000"
 }
 }
 ],
 "format": {
 "filename": ".\\hero.webm",
 "nb_streams": 1,
 "nb_programs": 0,
 "format_name": "matroska,webm",
 "format_long_name": "Matroska / WebM",
 "start_time": "0.000000",
 "duration": "9.000000",
 "size": "1550466",
 "bit_rate": "1378192",
 "probe_score": 100,
 "tags": {
 "COMPATIBLE_BRANDS": "qt ",
 "creation_time": "2023-02-23T10:43:46.703800Z",
 "MAJOR_BRAND": "qt ",
 "MINOR_VERSION": "537199360",
 "ENCODER": "Lavf59.35.100"
 }
 }
}



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Cannot seem to work with mp3 files in pydub
14 janvier 2023, par NegativePotatoI have been trying to open mp3 files on pydub, I have ffmpeg in path and whatnot, but I get errors whenever I attempt to use pydub with mp3 files. Wav files work fine of course.
This is my code for testing purposes (copied directly from online) :


from os import path
from pydub import AudioSegment

# files 
src = "Meet.mp3"
dst = "test.wav"

# convert wav to mp3 
sound = AudioSegment.from_mp3(src)
sound.export(dst, format="wav")



And this is my output for that code :


C:\Users\aiden\OneDrive\Desktop\VietnameseAudioConnector>py test.py
Traceback (most recent call last):
 File "C:\Users\aiden\OneDrive\Desktop\VietnameseAudioConnector\test.py", line 9, in <module>
 sound = AudioSegment.from_mp3(src)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\aiden\AppData\Local\Programs\Python\Python311\Lib\site-packages\pydub\audio_segment.py", line 796, in from_mp3
 return cls.from_file(file, 'mp3', parameters=parameters)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 File "C:\Users\aiden\AppData\Local\Programs\Python\Python311\Lib\site-packages\pydub\audio_segment.py", line 773, in from_file
 raise CouldntDecodeError(
pydub.exceptions.CouldntDecodeError: Decoding failed. ffmpeg returned error code: 1

Output from ffmpeg/avlib:

ffmpeg version 2023-01-12-git-fc263f073e-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
 built with gcc 12.2.0 (Rev7, Built by MSYS2 project)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
 libavutil 57. 43.100 / 57. 43.100
 libavcodec 59. 56.100 / 59. 56.100
 libavformat 59. 35.100 / 59. 35.100
 libavdevice 59. 8.101 / 59. 8.101
 libavfilter 8. 53.100 / 8. 53.100
 libswscale 6. 8.112 / 6. 8.112
 libswresample 4. 9.100 / 4. 9.100
 libpostproc 56. 7.100 / 56. 7.100
[mp3 @ 000002d24d29e500] Failed to read frame size: Could not seek to 44209.
Meet.mp3: Invalid argument
</module>


Sorry if this ends up being obvious, I am new to using python. Thank you for the help !