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DJ Z-trip - Victory Lap : The Obama Mix Pt. 2
15 septembre 2011
Mis à jour : Avril 2013
Langue : English
Type : Audio
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Matmos - Action at a Distance
15 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Audio
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Autres articles (57)
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Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.
Sur d’autres sites (7299)
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ffmpeg demux concat drops audio even though streams look identical
27 septembre 2022, par Ben OlayinkaI'm trying to demux two videos, but I'm getting an error and the audio from the second video is lost. Here's the ffprobe outputs


video 1 :


ffprobe bumpers/intro_final.mp4
ffprobe version 5.1.2 Copyright (c) 2007-2022 the FFmpeg developers
 built with Apple clang version 14.0.0 (clang-1400.0.29.102)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1.2 --enable-shared --enable-pthreads --enable-version3 --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-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'bumpers/intro_final.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf59.27.100
 Duration: 00:00:10.05, start: 0.000000, bitrate: 795 kb/s
 Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 654 kb/s, 25 fps, 25 tbr, 25 tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc59.37.100 libx264
 Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 135 kb/s (default)
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]




video 2 :


ffprobe input/ORIGINAL.mp4 
ffprobe version 5.1.2 Copyright (c) 2007-2022 the FFmpeg developers
 built with Apple clang version 14.0.0 (clang-1400.0.29.102)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1.2 --enable-shared --enable-pthreads --enable-version3 --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-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input/ORIGINAL.mp4':
 Metadata:
 major_brand : isom
 minor_version : 1
 compatible_brands: iso4avc1isom
 creation_time : 2022-09-22T09:39:50.000000Z
 com.apple.proapps.clipID: ThingsConference_ST2_01 6
 com.blackmagic-design.camera.dateRecorded: 2022:09:22
 com.apple.proapps.cameraName: 0
 com.blackmagic-design.camera.uuid: 92162B194AF84F1D8F186FBFEC9EDA9F-0
 Duration: 00:17:34.00, start: 0.000000, bitrate: 30012 kb/s
 Stream #0:0[0x1](eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 29880 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn (default)
 Metadata:
 creation_time : 2022-09-22T09:39:50.000000Z
 handler_name : ?Apple Video Media Handler
 vendor_id : BMAG
 encoder : H264/AVC
 timecode : 11:39:50:00
 Stream #0:1[0x2](eng): Data: none (tmcd / 0x64636D74) (default)
 Metadata:
 creation_time : 2022-09-22T09:39:50.000000Z
 handler_name : ?Time Code Media Handler
 timecode : 11:39:50:00
 Stream #0:2[0x3](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
 Metadata:
 creation_time : 2022-09-22T09:39:50.000000Z
 handler_name : ?Apple Sound Media Handler
 vendor_id : [0][0][0][0]
 timecode : 11:39:50:00
Unsupported codec with id 0 for input stream 1



And I'm running


ffmpeg -f concat -safe 0 -i mylist.txt -c copy output-demux.mp4



Which returns


[mov,mp4,m4a,3gp,3g2,mj2 @ 0x13ef058c0] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'mylist.txt':
 Duration: N/A, start: -0.021333, bitrate: 789 kb/s
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, 654 kb/s, 25 fps, 25 tbr, 25 tbn
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc59.37.100 libx264
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 135 kb/s
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
File 'output-demux.mp4' already exists. Overwrite? [y/N] y
Output #0, mp4, to 'output-demux.mp4':
 Metadata:
 encoder : Lavf59.27.100
 Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080, q=2-31, 654 kb/s, 25 fps, 25 tbr, 12800 tbn
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]
 encoder : Lavc59.37.100 libx264
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 135 kb/s
 Metadata:
 handler_name : SoundHandler
 vendor_id : [0][0][0][0]
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
 Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 1 fps=0.0 q=-1.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= [mov,mp4,m4a,3gp,3g2,mj2 @ 0x13ee06b10] Auto-inserting h264_mp4toannexb bitstream filter
[mp4 @ 0x13ee10a90] Non-monotonous DTS in output stream 0:1; previous: 482304, current: 1275; changing to 482305. This may result in incorrect timestamps in the output file.
[concat @ 0x13ef05200] New audio stream 0:2 at pos:792252 and DTS:10.0053s
frame= 2963 fps=0.0 q=-1.0 size= 336384kB time=00:01:58.52 bitrate=23250.6kbitsframe= 5465 fps=5464 q=-1.0 size= 695552kB time=00:03:38.60 bitrate=26065.7kbitframe= 8609 fps=5738 q=-1.0 size= 1033728kB time=00:05:44.36 bitrate=24591.4kbitframe=10978 fps=5488 q=-1.0 size= 1353984kB time=00:07:19.12 bitrate=25259.2kbitframe=13365 fps=5345 q=-1.0 size= 1715968kB time=00:08:54.60 bitrate=26294.8kbitframe=16480 fps=5492 q=-1.0 size= 2077952kB time=00:10:59.20 bitrate=25823.1kbitframe=18595 fps=5311 q=-1.0 size= 2436608kB time=00:12:23.80 bitrate=26836.1kbitframe=20753 fps=5187 q=-1.0 size= 2787072kB time=00:13:50.12 bitrate=27504.1kbitframe=22825 fps=5068 q=-1.0 size= 3157504kB time=00:15:13.00 bitrate=28331.1kbitframe=24700 fps=4935 q=-1.0 size= 3497216kB time=00:16:28.00 bitrate=28997.2kbitframe=26601 fps=4859 q=-1.0 Lsize= 3845642kB time=00:17:44.04 bitrate=29607.4kbits/s speed= 194x 
video:3845343kB audio:166kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.003468%



I just noticed the "Unsupported codec" error for video 2, but I've tried concating video 1 with itself and video 2 with itself and both work fine.


-
AVPlayer currentTime not match with the displayed frame after many seeking. (HLS Stream)
26 août 2022, par D.BenceI have a m3u8 file which i want to use with HLS.
link to m3u8 file


My problem is that when i seek many times, the currentTime not match with the displayed frame. I experience that, the more seeking there is more difference. (it's like a constant +offset)


Our use case is very timing sensitive, we need to stop the videos at specific positions. For this we use the following code :


[_player addBoundaryTimeObserverForTimes:times
 queue:dispatch_get_main_queue()
 usingBlock:^{
 weakSelf.player.rate = 0.0;
 // The time is correct here, but the displayed frame is not sync with this time
 CMTimeShow(weakSelf.player.currentTime);
 }
] 



I read that AVURLAssetPreferPreciseDurationAndTimingKey can help, but the currentTime still wrong.


NSDictionary<nsstring> *options = @{AVURLAssetPreferPreciseDurationAndTimingKey:@YES};
AVURLAsset *urlAsset = [AVURLAsset URLAssetWithURL:url options:options];
AVPlayerItem *item = [AVPlayerItem playerItemWithAsset:urlAsset];
</nsstring>


I also read that there is a problem with the m3u8 itself. (for example wrong GOP size.)


What is the reason for the incorrect currentTime, and how can i fix this ?


ffprobe m3u8 :


ffprobe https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized.m3u8
ffprobe version 5.1 Copyright (c) 2007-2022 the FFmpeg developers
 built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1 --enable-shared --enable-pthreads --enable-version3 --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-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
[hls @ 0x152f04280] Skip ('#EXT-X-VERSION:3')
[hls @ 0x152f04280] Skip ('#EXT-X-INDEPENDENT-SEGMENTS')
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1080p_6000000bitrate.m3u8' for reading
[hls @ 0x152f04280] Skip ('#EXT-X-VERSION:3')
[https @ 0x154045000] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1080p_15000000bitrate.m3u8' for reading
[hls @ 0x152f04280] Skip ('#EXT-X-VERSION:3')
[https @ 0x154045000] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1520p_33000000bitrate.m3u8' for reading
[hls @ 0x152f04280] Skip ('#EXT-X-VERSION:3')
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1080p_6000000bitrate_00001.ts' for reading
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1080p_6000000bitrate_00002.ts' for reading
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1080p_15000000bitrate_00001.ts' for reading
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1080p_15000000bitrate_00002.ts' for reading
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1520p_33000000bitrate_00001.ts' for reading
[hls @ 0x152f04280] Opening 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized1520p_33000000bitrate_00002.ts' for reading
Input #0, hls, from 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/released/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized.m3u8':
 Duration: 00:49:43.00, start: 2.033367, bitrate: 0 kb/s
 Program 0
 Metadata:
 variant_bitrate : 8133826
 Stream #0:0: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn
 Metadata:
 variant_bitrate : 8133826
 Program 1
 Metadata:
 variant_bitrate : 18870392
 Stream #0:1: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn
 Metadata:
 variant_bitrate : 18870392
 Program 2
 Metadata:
 variant_bitrate : 40776144
 Stream #0:2: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p, 2704x1520 [SAR 1:1 DAR 169:95], 29.97 fps, 29.97 tbr, 90k tbn
 Metadata:
 variant_bitrate : 40776144



ffprobe original mp4 :


ffprobe https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/finalized/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized.mp4
ffprobe version 5.1 Copyright (c) 2007-2022 the FFmpeg developers
 built with Apple clang version 13.1.6 (clang-1316.0.21.2.5)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1 --enable-shared --enable-pthreads --enable-version3 --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-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --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-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://mrkresz-content-bucket.s3.eu-central-1.amazonaws.com/applicationData/extended-path-videos/4b0046fd-0be7-4a07-bc7c-c1a0069116b1/finalized/50816bc9-6118-4dd1-a90e-fb72652bb06f-final-from-anonymized.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.76.100
 Duration: 00:49:42.81, start: 0.000000, bitrate: 36142 kb/s
 Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(progressive), 2486x1398, 36138 kb/s, 29.97 fps, 29.97 tbr, 30k tbn (default)
 Metadata:
 handler_name : VideoHandler
 vendor_id : [0][0][0][0]



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