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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (66)
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Le plugin : Podcasts.
14 juillet 2010, parLe problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
Types de fichiers supportés dans les flux
Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...) -
Organiser par catégorie
17 mai 2013, parDans MédiaSPIP, une rubrique a 2 noms : catégorie et rubrique.
Les différents documents stockés dans MédiaSPIP peuvent être rangés dans différentes catégories. On peut créer une catégorie en cliquant sur "publier une catégorie" dans le menu publier en haut à droite ( après authentification ). Une catégorie peut être rangée dans une autre catégorie aussi ce qui fait qu’on peut construire une arborescence de catégories.
Lors de la publication prochaine d’un document, la nouvelle catégorie créée sera proposée (...) -
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
Sur d’autres sites (11319)
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How to convert rtmp hevc video stream to srt av1 endpoint with ffmpeg ?
20 juin 2024, par Lulíki want use ffmpeg to listen rtmp stream and send to srt endpoint.


Flow : smartphone (camera) -> laptop (ffmpeg script) -> desktop (obs studio)


ffmpeg script show warning message and in obs stuido i can see any video only audio.


Thank you in advance.


Console output while running script (error in the end is bcs i stoped sending data from phone) :


ffmpeg version git-2024-06-20-8d6014d Copyright (c) 2000-2024 the FFmpeg developers
 built with gcc 12 (Debian 12.2.0-14)
 configuration: --enable-libsvtav1 --enable-libsrt
 libavutil 59. 24.100 / 59. 24.100
 libavcodec 61. 8.100 / 61. 8.100
 libavformat 61. 3.104 / 61. 3.104
 libavdevice 61. 2.100 / 61. 2.100
 libavfilter 10. 2.102 / 10. 2.102
 libswscale 8. 2.100 / 8. 2.100
 libswresample 5. 2.100 / 5. 2.100
Input #0, flv, from 'rtmp://192.168.0.194/s/streamKey':
 Duration: 00:00:00.00, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: hevc (Main), yuv420p(tv, smpte170m/bt470bg/smpte170m), 1080x1920, 10240 kb/s, 30 fps, 120 tbr, 1k tbn
 Stream #0:1: Audio: aac (LC), 44100 Hz, stereo, fltp, 131 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (hevc (native) -> av1 (libsvtav1))
 Stream #0:1 -> #0:1 (aac (native) -> mp2 (native))
Press [q] to stop, [?] for help
Svt[info]: -------------------------------------------
Svt[info]: SVT [version]: SVT-AV1 Encoder Lib 595a874
Svt[info]: SVT [build] : GCC 12.2.0 64 bit
Svt[info]: LIB Build date: Jun 20 2024 14:25:08
Svt[info]: -------------------------------------------
Svt[info]: Number of logical cores available: 12
Svt[info]: Number of PPCS 76
Svt[info]: [asm level on system : up to avx2]
Svt[info]: [asm level selected : up to avx2]
Svt[info]: -------------------------------------------
Svt[info]: SVT [config]: main profile tier (auto) level (auto)
Svt[info]: SVT [config]: width / height / fps numerator / fps denominator : 1080 / 1920 / 120 / 1
Svt[info]: SVT [config]: bit-depth / color format : 8 / YUV420
Svt[info]: SVT [config]: preset / tune / pred struct : 10 / PSNR / random access
Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type : 641 / 16 / key frame
Svt[info]: SVT [config]: BRC mode / rate factor : CRF / 35 
Svt[info]: SVT [config]: AQ mode / variance boost : 2 / 0
Svt[info]: -------------------------------------------
Svt[warn]: Failed to set thread priority: Invalid argument
Output #0, mpegts, to 'srt://192.168.0.167:9998?mode=caller':
 Metadata:
 encoder : Lavf61.3.104
 Stream #0:0: Video: av1, yuv420p(tv, smpte170m/bt470bg/smpte170m, progressive), 1080x1920, q=2-31, 120 fps, 90k tbn
 Metadata:
 encoder : Lavc61.8.100 libsvtav1
 Stream #0:1: Audio: mp2, 44100 Hz, stereo, s16, 384 kb/s
 Metadata:
 encoder : Lavc61.8.100 mp2
[mpegts @ 0x55ec921d9540] Stream 0, codec av1, is muxed as a private data stream and may not be recognized upon reading.
[in#0/flv @ 0x55ec9219cc40] Error during demuxing: Input/output error1990.7kbits/s speed=0.967x 
[out#0/mpegts @ 0x55ec922247c0] video:4431KiB audio:1138KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 6.374870%
frame= 723 fps= 31 q=35.0 Lsize= 5923KiB time=00:00:24.12 bitrate=2011.3kbits/s speed=1.04x



I send video stream from mobile app over rtmp encoded with hevc to my laptop where running script
ffmpeg -f flv -listen 1 -i rtmp://192.168.0.194/s/streamKey -c:v libsvtav1 -f mpegts srt://192.168.0.167:9998?mode=caller
. On the desktop i have obs with media source inputsrt://192.168.0.167:9998?mode=listener
.

When i run ffmpeg script without video codec option (-c:v libsvtav1) its working fine and in obs i can see video from my phone camera. With the option i can not see video only audio.
I clearly dont understand warning message :
[mpegts @ 0x55ec921d9540] Stream 0, codec av1, is muxed as a private data stream and may not be recognized upon reading.
.
Do I need specify codec (av1) in obs media source or my ffmpeg script is wrong ?

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ffmpeg command to convert 720p to 1080p, 1440p, 2160p compatible with YouTube [closed]
24 juin 2024, par Tendekai MuchenjeI have a video that I created in Final Cut Pro. When i uploaded it to Youtube, it only maxes out at 720p. I would like it to have higher options like 1080, 1440 and 2160 even if the quality does not change. Maybe 2160 is impossible, but 1440p would be nice. I have tried this command, but the resulting file is unplayable, it only plays audio.


ffmpeg -i Hey\ Girl.mov -vf scale=3840x2160:flags=lanczos -c:v libx264 -crf 13 -c:a aac -b:a 512k -preset slow hey_girl_hd.mov



I am looking for a command that would make at least 1080 and 1440 work on YouTube. If 2160 can work, that would be great too. If it matters, here is all the info that ffprobe throws out about the file


{
 "streams": [
 {
 "index": 0,
 "codec_name": "pcm_s24le",
 "codec_long_name": "PCM signed 24-bit little-endian",
 "codec_type": "audio",
 "codec_tag_string": "lpcm",
 "codec_tag": "0x6d63706c",
 "sample_fmt": "s32",
 "sample_rate": "48000",
 "channels": 2,
 "bits_per_sample": 24,
 "r_frame_rate": "0/0",
 "avg_frame_rate": "0/0",
 "time_base": "1/48000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 8987200,
 "duration": "187.233333",
 "bit_rate": "2304000",
 "bits_per_raw_sample": "24",
 "nb_frames": "8987200",
 "disposition": {
 "default": 1,
 "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
 },
 "tags": {
 "creation_time": "2024-04-15T23:26:08.000000Z",
 "language": "und",
 "handler_name": "Core Media Audio",
 "vendor_id": "[0][0][0][0]"
 }
 },
 {
 "index": 1,
 "codec_name": "prores",
 "codec_long_name": "Apple ProRes (iCodec Pro)",
 "profile": "Standard",
 "codec_type": "video",
 "codec_tag_string": "apcn",
 "codec_tag": "0x6e637061",
 "width": 1280,
 "height": 720,
 "coded_width": 1280,
 "coded_height": 720,
 "closed_captions": 0,
 "has_b_frames": 0,
 "sample_aspect_ratio": "1:1",
 "display_aspect_ratio": "16:9",
 "pix_fmt": "yuv422p10le",
 "level": -99,
 "color_range": "tv",
 "color_space": "bt709",
 "color_transfer": "bt709",
 "color_primaries": "bt709",
 "field_order": "progressive",
 "refs": 1,
 "r_frame_rate": "60/1",
 "avg_frame_rate": "60/1",
 "time_base": "1/6000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 1123400,
 "duration": "187.233333",
 "bit_rate": "138655195",
 "bits_per_raw_sample": "10",
 "nb_frames": "11234",
 "disposition": {
 "default": 1,
 "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
 },
 "tags": {
 "creation_time": "2024-04-15T23:26:08.000000Z",
 "language": "und",
 "handler_name": "Core Media Video",
 "vendor_id": "[0][0][0][0]",
 "encoder": "Apple ProRes 422",
 "timecode": "00:00:00:00"
 }
 },
 {
 "index": 2,
 "codec_type": "data",
 "codec_tag_string": "tmcd",
 "codec_tag": "0x64636d74",
 "r_frame_rate": "0/0",
 "avg_frame_rate": "6000/100",
 "time_base": "1/6000",
 "start_pts": 0,
 "start_time": "0.000000",
 "duration_ts": 1123400,
 "duration": "187.233333",
 "nb_frames": "1",
 "disposition": {
 "default": 1,
 "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
 },
 "tags": {
 "creation_time": "2024-04-15T23:26:08.000000Z",
 "language": "und",
 "handler_name": "Core Media Time Code",
 "timecode": "00:00:00:00"
 }
 }
 ],
 "format": {
 "filename": "Hey Girl.mov",
 "nb_streams": 3,
 "nb_programs": 0,
 "format_name": "mov,mp4,m4a,3gp,3g2,mj2",
 "format_long_name": "QuickTime / MOV",
 "start_time": "0.000000",
 "duration": "187.233333",
 "size": "3306875809",
 "bit_rate": "141294320",
 "probe_score": 100,
 "tags": {
 "major_brand": "qt ",
 "minor_version": "0",
 "compatible_brands": "qt ",
 "creation_time": "2024-04-15T23:26:08.000000Z",
 "com.apple.quicktime.keywords": "Hey GIRL",
 "com.apple.quicktime.description": "This video is about Hey Girl",
 "com.apple.quicktime.author": "Ja Mo",
 "com.apple.quicktime.displayname": "Hey Girl",
 "com.apple.quicktime.title": "Hey Girl"
 }
 }
}



-
FFmpeg Could not write header (incorrect codec parameters ?) : Invalid data found when processing input [closed]
14 juillet 2024, par cookieThe command


ffmpeg -v verbose -i in.mkv -c copy -y out.mkv



produces the following error :


ffmpeg version 7.0.1-full_build-www.gyan.dev Copyright (c) 2000-2024 the FFmpeg developers
 built with gcc 13.2.0 (Rev5, 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-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --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-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --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 59. 8.100 / 59. 8.100
 libavcodec 61. 3.100 / 61. 3.100
 libavformat 61. 1.100 / 61. 1.100
 libavdevice 61. 1.100 / 61. 1.100
 libavfilter 10. 1.100 / 10. 1.100
 libswscale 8. 1.100 / 8. 1.100
 libswresample 5. 1.100 / 5. 1.100
 libpostproc 58. 1.100 / 58. 1.100
[hevc @ 00000133b5bb5040] Invalid default display window
Input #0, matroska,webm, from 'in.mkv':
 Metadata:
 encoder : libebml v1.3.0 + libmatroska v1.4.1
 creation_time : 2015-03-20T14:07:27.000000Z
 Duration: 00:24:11.75, start: 0.000000, bitrate: 5185 kb/s
 Chapters:
 Chapter #0:0: start 0.000000, end 48.047000
 Metadata:
 title : Chapter 01
 Chapter #0:1: start 48.047000, end 137.846000
 Metadata:
 title : Chapter 02
 Chapter #0:2: start 137.846000, end 535.868000
 Metadata:
 title : Chapter 03
 Chapter #0:3: start 535.868000, end 1330.871000
 Metadata:
 title : Chapter 04
 Chapter #0:4: start 1330.871000, end 1420.877000
 Metadata:
 title : Chapter 05
 Chapter #0:5: start 1420.877000, end 1451.741000
 Metadata:
 title : Chapter 06
 Chapter #0:6: start 1451.741000, end 1451.745000
 Metadata:
 title : Chapter 07
 Stream #0:0: Video: hevc (Main 10), 1 reference frame, yuv420p10le(tv, left), 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn (default)
 Metadata:
 _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 32bit built on Jun 9 2014 15:08:34
 _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 32bit built on Jun 9 2014 15:08:34
 _STATISTICS_WRITING_DATE_UTC: 2015-03-20 14:07:27
 _STATISTICS_WRITING_DATE_UTC-eng: 2015-03-20 14:07:27
 _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 BPS : 3754023
 BPS-eng : 3754023
 DURATION : 00:24:11.742000000
 DURATION-eng : 00:24:11.742000000
 NUMBER_OF_FRAMES: 34807
 NUMBER_OF_FRAMES-eng: 34807
 NUMBER_OF_BYTES : 681234123
 NUMBER_OF_BYTES-eng: 681234123
 Stream #0:1(jpn): Audio: flac, 48000 Hz, stereo, s32 (24 bit) (default)
 Metadata:
 _STATISTICS_WRITING_APP: mkvmerge v7.0.0 ('Where We Going') 32bit built on Jun 9 2014 15:08:34
 _STATISTICS_WRITING_APP-eng: mkvmerge v7.0.0 ('Where We Going') 32bit built on Jun 9 2014 15:08:34
 _STATISTICS_WRITING_DATE_UTC: 2015-03-20 14:07:27
 _STATISTICS_WRITING_DATE_UTC-eng: 2015-03-20 14:07:27
 _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
 BPS : 1429414
 BPS-eng : 1429414
 DURATION : 00:24:11.745000000
 DURATION-eng : 00:24:11.745000000
 NUMBER_OF_FRAMES: 17013
 NUMBER_OF_FRAMES-eng: 17013
 NUMBER_OF_BYTES : 259393130
 NUMBER_OF_BYTES-eng: 259393130
[out#0/matroska @ 00000133b5bb5a40] No explicit maps, mapping streams automatically...
[vost#0:0/copy @ 00000133b5c2f580] Created video stream from input stream 0:0
[aost#0:1/copy @ 00000133b5bf1680] Created audio stream from input stream 0:1
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:1 -> #0:1 (copy)
[out#0/matroska @ 00000133b5bb5a40] Could not write header (incorrect codec parameters ?): Invalid data found when processing input
[AVIOContext @ 00000133b5c27940] Statistics: 291 bytes written, 0 seeks, 1 writeouts
[AVIOContext @ 00000133b5b97980] Statistics: 66432 bytes read, 2 seeks
Conversion failed!



Originally, I was trying to add a subtitle to
in.mkv
, but I keep encountering this error. When I add the subtitle to another MKV file, it works fine, so I believe the problem lies within.mkv
.

Troubleshooting


Output only video stream produce the same error :


ffmpeg -i in.mkv -map 0:v:0 -c copy out.mkv



Output only audio stream works fine :


ffmpeg -i in.mkv -map 0:a:0 -c copy out.mkv



Output as mp4 got no error, but the output file is unplayable :


ffmpeg -i in.mkv -c copy -strict -2 out.mp4



Re-encoding works fine :


ffmpeg -i in.mkv -c:v libx265 -c:a copy out.mkv



How can I fix the video stream in
in.mkv
so that I can add a subtitle stream and remux the file without re-encoding the video ? Any insights or suggestions on handling this error would be greatly appreciated.