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CreatorPrivacyKit

Rééchantillonnage WASM et WebCodecs

Convolution Lanczos, pas une IA générative

Convolution Lanczos, pas une IA générative?

Le rapport suit le code : décodage WebCodecs, rééchantillonnage WASM, encodage. Le son d’origine est recopié. Les métadonnées habituelles ne sont pas gardées. Les préréglages sont Meilleure qualité (Lanczos3), Équilibré (bicubique) et Rapide (bilinéaire). Les cibles sont 1080p, 1440p, 4K UHD, 2× et une taille personnalisée dans les limites du contrôle.

Le rapport suit le code : décodage WebCodecs, rééchantillonnage WASM, encodage. Le son d’origine est recopié. Les métadonnées habituelles ne sont pas gardées.

Les préréglages sont Meilleure qualité (Lanczos3), Équilibré (bicubique) et Rapide (bilinéaire). Les cibles sont 1080p, 1440p, 4K UHD, 2× et une taille personnalisée dans les limites du contrôle. Les options d’un cas sont les contrôles utilisés, pas une liste de préréglages que personne n’a lancés.

Le rééchantillonneur actuel travaille sur des images SDR 8 bits. Le HDR et la couleur 10 bits ne sont pas un chemin promis. L’audio compatible est copié quand le conteneur de sortie peut le porter. Les balises ordinaires sont omises quand « Retirer les métadonnées » reste coché, ce qui est le réglage de départ.

Des images plus grandes donnent en général un fichier plus grand. Les tailles en octets de chaque cas sont celles de la capture. Cette page n’en fait pas une note de qualité. Le SIMD est utilisé quand le navigateur l’a ; ce n’est pas un débit mesuré pour chaque visiteur.

Chemins d’outils nommés dans la capture

Environnement de capture

Capturé
Date du contenu
SHA de build
d8a85c607f765a6f95e7dd57d8e765c129f59441
Navigateur
Chrome/154.0.8037.92
URL de base lors de la capture
https://creatorprivacykit.com
Méthode
actual-browser-product
SHA-256 du JSON de preuves publié
217cda6833d40f0158d9a739f820675e9020fa1d4d7d4dd3f164e2cabb8bec1a

Télécharger le paquet de preuves (JSON)

Relire les champs de métadonnées dans le navigateur vérifie ces champs. Ce n’est pas une vérification de signature cryptographique.

Cas de cette capture

2 cas : 1 réussites, 1 partiels, 0 refusés, 0 échecs, 0 non pris en charge.

IDFormatÉtatOctetsSortie téléchargée
upscaling-lab-chart-sine-lanczos3-2x mp4 Réussi 36625 122742
upscaling-mc-vid-001-limitation mp4 Partiel 7209 6097

upscaling-lab-chart-sine-lanczos3-2x

Réussi

Format
mp4
Octets
36625
SHA-256
9b49949f1174ce24f4653b828ad865a086e4f9080020f1847e94bf08cd0cf1a6
Licence
CC0-1.0
Source
Generated CC0 lab input via tests/helpers/video-acceptance.mjs makeSyntheticMp4 (testsrc 320x240, 15 fps, 2 seconds, sine 440 Hz). This is an original lab input, not a product output and not a real-world recording.

Fichier d’origine assets/video-lab/cpk-lab-cc0-chart-motion-sine-320x240.mp4

Actions utilisées

Options enregistrées

webCodecs
true
preset
2x
quality
high
sharpen
off
algorithm
lanczos3
preserveAudio
true
removeMeta
true
targetDimText
640 × 480
engineLabel
WASM SIMD

Entrée enregistrée

sha256
9b49949f1174ce24f4653b828ad865a086e4f9080020f1847e94bf08cd0cf1a6
bytes
36625
video
{"codec":"h264","width":320,"height":240,"fps":15,"bitrate":146500,"durationSec":2,"audioCodec":"aac","audioPresent":true,"rotation":null}
timestamps
{"videoStart":0,"videoEnd":2,"audioStart":-0.02322,"audioEnd":2,"startDriftSec":0.02322,"endDriftSec":0,"scope":"this clip only; not a general A/V sync guarantee"}
probe
{"streams":[{"index":0,"codec_name":"h264","codec_long_name":"H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10","profile":"High","codec_type":"video","codec_tag_string":"avc1","codec_tag":"0x31637661","width":320,"height":240,"coded_width":320,"coded_height":240,"closed_captions":0,"film_grain":0,"has_b_frames":2,"sample_aspect_ratio":"1:1","display_aspect_ratio":"4:3","pix_fmt":"yuv420p","level":13,"chroma_location":"left","field_order":"progressive","refs":1,"is_avc":"true","nal_length_size":"4","id":"0x1","r_frame_rate":"15/1","avg_frame_rate":"15/1","time_base":"1/15360","start_pts":0,"start_time":"0.000000","duration_ts":30720,"duration":"2.000000","bit_rate":"70884","bits_per_raw_sample":"8","nb_frames":"30","extradata_size":45,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"language":"und","handler_name":"VideoHandler","vendor_id":"[0][0][0][0]","encoder":"Lavc60.31.102 libx264"}},{"index":1,"codec_name":"aac","codec_long_name":"AAC (Advanced Audio Coding)","profile":"LC","codec_type":"audio","codec_tag_string":"mp4a","codec_tag":"0x6134706d","sample_fmt":"fltp","sample_rate":"44100","channels":1,"channel_layout":"mono","bits_per_sample":0,"initial_padding":0,"id":"0x2","r_frame_rate":"0/0","avg_frame_rate":"0/0","time_base":"1/44100","start_pts":0,"start_time":"0.000000","duration_ts":88200,"duration":"2.000000","bit_rate":"64914","nb_frames":"88","extradata_size":5,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"language":"und","handler_name":"SoundHandler","vendor_id":"[0][0][0][0]"}}],"format":{"nb_streams":2,"nb_programs":0,"format_name":"mov,mp4,m4a,3gp,3g2,mj2","format_long_name":"QuickTime / MOV","start_time":"0.000000","duration":"2.000000","size":"36625","bit_rate":"146500","probe_score":100,"tags":{"major_brand":"isom","minor_version":"512","compatible_brands":"isomiso2avc1mp41","encoder":"Lavf60.16.100"}}}
Sortie téléchargée assets/video-upscaling/upscaling-lab-chart-sine-lanczos3-2x-output.mp4

Sonde de sortie

streams
[{"index":0,"codec_name":"h264","codec_long_name":"H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10","profile":"High","codec_type":"video","codec_tag_string":"avc1","codec_tag":"0x31637661","width":640,"height":480,"coded_width":640,"coded_height":480,"closed_captions":0,"film_grain":0,"has_b_frames":0,"pix_fmt":"yuvj420p","level":30,"color_range":"pc","color_space":"bt709","color_transfer":"iec61966-2-1","color_primaries":"bt709","chroma_location":"left","field_order":"progressive","refs":1,"is_avc":"true","nal_length_size":"4","id":"0x1","r_frame_rate":"15/1","avg_frame_rate":"15/1","time_base":"1/57600","start_pts":0,"start_time":"0.000000","duration_ts":115200,"duration":"2.000000","bit_rate":"418476","bits_per_raw_sample":"8","nb_frames":"30","extradata_size":37,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"creation_time":"2026-10-02T07:17:32.000000Z","language":"und","handler_name":"MediabunnyVideoHandler","vendor_id":"[0][0][0][0]","encoder":"Mediabunny"}},{"index":1,"codec_name":"aac","codec_long_name":"AAC (Advanced Audio Coding)","profile":"LC","codec_type":"audio","codec_tag_string":"mp4a","codec_tag":"0x6134706d","sample_fmt":"fltp","sample_rate":"44100","channels":1,"channel_layout":"mono","bits_per_sample":0,"initial_padding":0,"id":"0x2","r_frame_rate":"0/0","avg_frame_rate":"0/0","time_base":"1/44100","start_pts":0,"start_time":"0.000000","duration_ts":88200,"duration":"2.000000","bit_rate":"64914","nb_frames":"88","extradata_size":5,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"creation_time":"2026-10-02T07:17:32.000000Z","language":"und","handler_name":"MediabunnySoundHandler","vendor_id":"[0][0][0][0]"}}]
format
{"nb_streams":2,"nb_programs":0,"format_name":"mov,mp4,m4a,3gp,3g2,mj2","format_long_name":"QuickTime / MOV","start_time":"0.000000","duration":"2.000000","size":"122742","bit_rate":"490968","probe_score":100,"tags":{"major_brand":"isom","minor_version":"512","compatible_brands":"isomavc1mp41","creation_time":"2026-10-02T07:17:32.000000Z"}}

acd425e45d303b1303777a8c5de009f050a97b0b6041d38a1b673df5fda7b009 · 122742

Contrôles enregistrés

summary
This download probed as h264 with aac audio. Output is 122742 bytes and the input fixture is 36625 bytes. The output file is larger than the input on this clip. The output audio stream is present on this clip. Packet start drift 0.02322s is for this clip only. Elapsed 947ms is for this environment only. Output is 640x480 and input is 320x240. Dimensions increased by resampling. This does not show recovered detail.
publicClaims
["This download probed as h264 with aac audio.","Output is 122742 bytes and the input fixture is 36625 bytes. The output file is larger than the input on this clip.","The output audio stream is present on this clip.","Packet start drift 0.02322s is for this clip only.","Elapsed 947ms is for this environment only.","Output is 640x480 and input is 320x240. Dimensions increased by resampling. This does not show recovered detail."]
elapsedMs
947
elapsedScope
this environment only
video
{"codec":"h264","width":640,"height":480,"fps":15,"bitrate":490968,"durationSec":2,"audioCodec":"aac","audioPresent":true,"rotation":null}
timestamps
{"videoStart":0,"videoEnd":2,"audioStart":-0.02322,"audioEnd":2,"startDriftSec":0.02322,"endDriftSec":0,"scope":"this clip only; not a general A/V sync guarantee"}
outputLargerThanInput
true
metrics
{"ssim":null,"psnr":null,"explanation":"not computed"}
algorithm
lanczos3
detailRecoveryClaimed
false
frames
[{"role":"input-frame","file":"assets/video-upscaling/upscaling-lab-chart-sine-lanczos3-2x-input-frame.webp","width":320,"height":240,"sha256":"ab73361269ea1bc6d4ac948f52104a65b6e2e518610699880558c7a1595e665a","bytes":3386},{"role":"output-frame","file":"assets/video-upscaling/upscaling-lab-chart-sine-lanczos3-2x-output-frame.webp","width":640,"height":480,"sha256":"e004a51a5ccd42d435428d8d1ad8ba4273cde02fcf0cb46e327da937bba7482e","bytes":6660},{"role":"input-crop","file":"assets/video-upscaling/upscaling-lab-chart-sine-lanczos3-2x-input-crop.webp","width":128,"height":96,"sha256":"8fec28cc6d8856dc32b41772261499aafaccdcb5ad171d562de05847a47f6969","bytes":536},{"role":"output-crop","file":"assets/video-upscaling/upscaling-lab-chart-sine-lanczos3-2x-output-crop.webp","width":128,"height":96,"sha256":"34a51b82a1ed512f660a11585445ea8cffe03469c6917dbee82bd9e2bbb86b1d","bytes":498}]
comparison
{"method":"Relative box at 8% from the left and 12% from the top, covering 40% by 40% of each frame. The output crop was scaled down to the input crop pixel size with sharp lanczos3 as a reading aid.","productStep":false,"qualityScore":false}
observedStates
[{"t":1790925450460,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925450590,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925451686,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925451745,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925451915,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925451979,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925452552,"phase":"","rowState":"","busy":false,"progress":"0% Frame 0 of 30"},{"t":1790925452703,"phase":"","rowState":"","busy":false,"progress":"63% Frame 18 of 30 · 23.4 FPS"},{"t":1790925452779,"phase":"","rowState":"","busy":false,"progress":"100% Frame 29 of 30 · 34.3 FPS"},{"t":1790925452814,"phase":"","rowState":"","busy":false,"progress":"100% Frame 30 of 30 · 34 FPS"},{"t":1790925452976,"phase":"","rowState":"","busy":false,"progress":"100% Frame 30 of 30 · 34 FPS"}]
blockedExistingTelemetry
[{"method":"GET","host":"static.cloudflareinsights.com","pathname":"/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba1788362987495","reason":"cloudflare-insights-beacon"}]
privacy
{"observedUnique":10,"violations":[],"scope":"Observed requests in this run only. Not a universal no-exfiltration certificate."}
pageErrorCount
0

Images appariées et recadrages de détail

Ces images sont les vues appariées ou les recadrages de détail enregistrés avec ce cas. Un changement de largeur ou de hauteur est le redimensionnement mathématique enregistré, pas un détail d’image nouveau.

Decoded input frame from this clip.
Decoded input frame from this clip.
Browser-output frame from this clip.
Browser-output frame from this clip.
Decoded input frame and browser-output frame from this clip.
Input crop from the same relative box, kept as a reading aid.
Input crop from the same relative box, kept as a reading aid.
Browser-output crop from the same relative box, kept as a reading aid.
Browser-output crop from the same relative box, kept as a reading aid.
Relative box at 8% from the left and 12% from the top, covering 40% by 40% of each frame. The output crop was scaled down to the input crop pixel size with sharp lanczos3 as a reading aid. This pair is a reading aid.

Limites enregistrées pour ce cas

Captures d’écran de la session

Entrée · settings visible · 1120×571. Video upscaler for cpk-lab-cc0-chart-motion-sine-320x240.mp4. Target text 640 × 480. Quality high. Sharpen off.
Entrée · settings visible · 1120×571. Video upscaler for cpk-lab-cc0-chart-motion-sine-320x240.mp4. Target text 640 × 480. Quality high. Sharpen off.
Traitement · running progress 0% · 1120×806. upscaling-lab-chart-sine-lanczos3-2x while the page showed running progress 0%.
Traitement · running progress 0% · 1120×806. upscaling-lab-chart-sine-lanczos3-2x while the page showed running progress 0%.
Sortie · result visible · 1120×818. Video upscaler result for cpk-lab-cc0-chart-motion-sine-320x240.mp4.
Sortie · result visible · 1120×818. Video upscaler result for cpk-lab-cc0-chart-motion-sine-320x240.mp4.

upscaling-mc-vid-001-limitation

Partiel

Format
mp4
Octets
7209
SHA-256
e20e7660ca02ea7da0b8979d123d6491ba59b01172f6099aec187efdb088cc88
Licence
CC0-1.0
Source
tests/fixtures/media-corpus manifest MC-VID-001, constructed by scripts/generate-media-corpus.mjs. CC0-1.0 constructed original. Not regenerated by this capture.

Fichier d’origine assets/video-lab/mc-vid-h264-aac-1s.mp4

Actions utilisées

Options enregistrées

webCodecs
true
preset
2x
quality
high
sharpen
off
algorithm
lanczos3
preserveAudio
true
removeMeta
true
targetDimText
128 × 128
engineLabel
WASM SIMD

Entrée enregistrée

sha256
e20e7660ca02ea7da0b8979d123d6491ba59b01172f6099aec187efdb088cc88
bytes
7209
video
{"codec":"h264","width":64,"height":48,"fps":12,"bitrate":57672,"durationSec":1,"audioCodec":"aac","audioPresent":true,"rotation":null}
timestamps
{"videoStart":0,"videoEnd":1,"audioStart":-0.064,"audioEnd":1,"startDriftSec":0.064,"endDriftSec":0,"scope":"this clip only; not a general A/V sync guarantee"}
probe
{"streams":[{"index":0,"codec_name":"h264","codec_long_name":"H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10","profile":"High","codec_type":"video","codec_tag_string":"avc1","codec_tag":"0x31637661","width":64,"height":48,"coded_width":64,"coded_height":48,"closed_captions":0,"film_grain":0,"has_b_frames":2,"sample_aspect_ratio":"1:1","display_aspect_ratio":"4:3","pix_fmt":"yuv420p","level":10,"chroma_location":"left","field_order":"progressive","refs":1,"is_avc":"true","nal_length_size":"4","id":"0x1","r_frame_rate":"12/1","avg_frame_rate":"12/1","time_base":"1/12288","start_pts":0,"start_time":"0.000000","duration_ts":12288,"duration":"1.000000","bit_rate":"6984","bits_per_raw_sample":"8","nb_frames":"12","extradata_size":43,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"creation_time":"2026-10-01T00:00:00.000000Z","language":"und","handler_name":"VideoHandler","vendor_id":"[0][0][0][0]","encoder":"Lavc libx264"}},{"index":1,"codec_name":"aac","codec_long_name":"AAC (Advanced Audio Coding)","profile":"LC","codec_type":"audio","codec_tag_string":"mp4a","codec_tag":"0x6134706d","sample_fmt":"fltp","sample_rate":"16000","channels":1,"channel_layout":"mono","bits_per_sample":0,"initial_padding":0,"id":"0x2","r_frame_rate":"0/0","avg_frame_rate":"0/0","time_base":"1/16000","start_pts":0,"start_time":"0.000000","duration_ts":16000,"duration":"1.000000","bit_rate":"34225","nb_frames":"17","extradata_size":5,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"creation_time":"2026-10-01T00:00:00.000000Z","language":"und","handler_name":"SoundHandler","vendor_id":"[0][0][0][0]"}}],"format":{"nb_streams":2,"nb_programs":0,"format_name":"mov,mp4,m4a,3gp,3g2,mj2","format_long_name":"QuickTime / MOV","start_time":"0.000000","duration":"1.000000","size":"7209","bit_rate":"57672","probe_score":100,"tags":{"major_brand":"isom","minor_version":"512","compatible_brands":"isomiso2avc1mp41","creation_time":"2026-10-01T00:00:00.000000Z"}}}
Sortie téléchargée assets/video-upscaling/upscaling-mc-vid-001-limitation-output.mp4

Sonde de sortie

streams
[{"index":0,"codec_name":"h264","codec_long_name":"H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10","profile":"High","codec_type":"video","codec_tag_string":"avc1","codec_tag":"0x31637661","width":128,"height":128,"coded_width":128,"coded_height":128,"closed_captions":0,"film_grain":0,"has_b_frames":0,"pix_fmt":"yuvj420p","level":30,"color_range":"pc","color_space":"bt709","color_transfer":"iec61966-2-1","color_primaries":"bt709","chroma_location":"left","field_order":"progressive","refs":1,"is_avc":"true","nal_length_size":"4","id":"0x1","r_frame_rate":"12/1","avg_frame_rate":"12/1","time_base":"1/57600","start_pts":0,"start_time":"0.000000","duration_ts":57600,"duration":"1.000000","bit_rate":"1664","bits_per_raw_sample":"8","nb_frames":"12","extradata_size":36,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"creation_time":"2026-10-02T07:17:35.000000Z","language":"und","handler_name":"MediabunnyVideoHandler","vendor_id":"[0][0][0][0]","encoder":"Mediabunny"}},{"index":1,"codec_name":"aac","codec_long_name":"AAC (Advanced Audio Coding)","profile":"LC","codec_type":"audio","codec_tag_string":"mp4a","codec_tag":"0x6134706d","sample_fmt":"fltp","sample_rate":"16000","channels":1,"channel_layout":"mono","bits_per_sample":0,"initial_padding":0,"id":"0x2","r_frame_rate":"0/0","avg_frame_rate":"0/0","time_base":"1/16000","start_pts":0,"start_time":"0.000000","duration_ts":16000,"duration":"1.000000","bit_rate":"34225","nb_frames":"17","extradata_size":5,"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,"non_diegetic":0,"captions":0,"descriptions":0,"metadata":0,"dependent":0,"still_image":0},"tags":{"creation_time":"2026-10-02T07:17:35.000000Z","language":"und","handler_name":"MediabunnySoundHandler","vendor_id":"[0][0][0][0]"}}]
format
{"nb_streams":2,"nb_programs":0,"format_name":"mov,mp4,m4a,3gp,3g2,mj2","format_long_name":"QuickTime / MOV","start_time":"0.000000","duration":"1.000000","size":"6097","bit_rate":"48776","probe_score":100,"tags":{"major_brand":"isom","minor_version":"512","compatible_brands":"isomavc1mp41","creation_time":"2026-10-02T07:17:35.000000Z"}}

4b68ace53570b06c3073535e9a4db448311467503c5505101cf621e575d9acd5 · 6097

Contrôles enregistrés

summary
This download probed as h264 with aac audio. Output is 6097 bytes and the input fixture is 7209 bytes. The output byte count is not larger than the input on this clip. The output audio stream is present on this clip. Packet start drift 0.064s is for this clip only. Elapsed 352ms is for this environment only. Output is 128x128 and input is 64x48. Dimensions increased by resampling. This does not show recovered detail.
publicClaims
["This download probed as h264 with aac audio.","Output is 6097 bytes and the input fixture is 7209 bytes. The output byte count is not larger than the input on this clip.","The output audio stream is present on this clip.","Packet start drift 0.064s is for this clip only.","Elapsed 352ms is for this environment only.","Output is 128x128 and input is 64x48. Dimensions increased by resampling. This does not show recovered detail."]
elapsedMs
352
elapsedScope
this environment only
video
{"codec":"h264","width":128,"height":128,"fps":12,"bitrate":48776,"durationSec":1,"audioCodec":"aac","audioPresent":true,"rotation":null}
timestamps
{"videoStart":0,"videoEnd":1,"audioStart":-0.064,"audioEnd":1,"startDriftSec":0.064,"endDriftSec":0,"scope":"this clip only; not a general A/V sync guarantee"}
outputLargerThanInput
false
metrics
{"ssim":null,"psnr":null,"explanation":"not computed"}
algorithm
lanczos3
detailRecoveryClaimed
false
frames
[{"role":"input-frame","file":"assets/video-upscaling/upscaling-mc-vid-001-limitation-input-frame.webp","width":64,"height":48,"sha256":"b7df7d06c9c3c67af90f71b483cb9a7a8c05fbc132d477ca961d3f178aca8fa1","bytes":80},{"role":"output-frame","file":"assets/video-upscaling/upscaling-mc-vid-001-limitation-output-frame.webp","width":128,"height":128,"sha256":"f2f4b1cc5c235ae096404a6c1147d4d6bf28be67f01bd2cb924dcbcf6f148e0c","bytes":110},{"role":"input-crop","file":"assets/video-upscaling/upscaling-mc-vid-001-limitation-input-crop.webp","width":26,"height":19,"sha256":"820e97f72fa68c35e8050d3e18c2a649860988ac66468d453d70a86dc13ce392","bytes":74},{"role":"output-crop","file":"assets/video-upscaling/upscaling-mc-vid-001-limitation-output-crop.webp","width":26,"height":19,"sha256":"30a9fabd1ef0176e51c7b7ca5dc1e231f1c09e5eded2d1f2b75c560616ba9dbb","bytes":78}]
comparison
{"method":"Relative box at 8% from the left and 12% from the top, covering 40% by 40% of each frame. The output crop was scaled down to the input crop pixel size with sharp lanczos3 as a reading aid.","productStep":false,"qualityScore":false}
observedStates
[{"t":1790925454580,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925454706,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925455192,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925455247,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925455412,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925455465,"phase":"","rowState":"","busy":false,"progress":"0% Starting local processing…"},{"t":1790925455699,"phase":"","rowState":"","busy":false,"progress":"100% Frame 11 of 12 · 37.2 FPS"},{"t":1790925455741,"phase":"","rowState":"","busy":false,"progress":"100% Frame 12 of 12 · 37.1 FPS"},{"t":1790925455875,"phase":"","rowState":"","busy":false,"progress":"100% Frame 12 of 12 · 37.1 FPS"}]
blockedExistingTelemetry
[{"method":"GET","host":"static.cloudflareinsights.com","pathname":"/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba1788362987495","reason":"cloudflare-insights-beacon"}]
privacy
{"observedUnique":10,"violations":[],"scope":"Observed requests in this run only. Not a universal no-exfiltration certificate."}
pageErrorCount
0

Images appariées et recadrages de détail

Ces images sont les vues appariées ou les recadrages de détail enregistrés avec ce cas. Un changement de largeur ou de hauteur est le redimensionnement mathématique enregistré, pas un détail d’image nouveau.

Decoded input frame from this clip.
Decoded input frame from this clip.
Browser-output frame from this clip.
Browser-output frame from this clip.
Decoded input frame and browser-output frame from this clip.
Input crop from the same relative box, kept as a reading aid.
Input crop from the same relative box, kept as a reading aid.
Browser-output crop from the same relative box, kept as a reading aid.
Browser-output crop from the same relative box, kept as a reading aid.
Relative box at 8% from the left and 12% from the top, covering 40% by 40% of each frame. The output crop was scaled down to the input crop pixel size with sharp lanczos3 as a reading aid. This pair is a reading aid.

Limites enregistrées pour ce cas

Captures d’écran de la session

Entrée · settings visible · 1120×571. Video upscaler for mc-vid-h264-aac-1s.mp4. Target text 128 × 128. Quality high. Sharpen off.
Entrée · settings visible · 1120×571. Video upscaler for mc-vid-h264-aac-1s.mp4. Target text 128 × 128. Quality high. Sharpen off.
Traitement · running progress 0% · 1120×806. upscaling-mc-vid-001-limitation while the page showed running progress 0%.
Traitement · running progress 0% · 1120×806. upscaling-mc-vid-001-limitation while the page showed running progress 0%.
Sortie · result visible · 1120×818. Video upscaler result for mc-vid-h264-aac-1s.mp4.
Sortie · result visible · 1120×818. Video upscaler result for mc-vid-h264-aac-1s.mp4.

Questions fréquentes

Les visages sont-ils reconstruits ?

Non. Un léger renfort de contours peut être ajouté. Aucun détail n’est inventé.

Le navigateur dit-il si l’encodage était matériel ?

Pas toujours. On ne l’affirme pas.

Est-ce un compresseur ?

Non. La taille d’envoi est un autre outil.