![]() One typical solution downloads just the first few bytes from the head and tail of the file. If you download the entire file, you run into issues with either the limited temp space available to Lambda or run into the 300s timeout limit when dealing with long running functions.Ĭustomers have come up with inventive ways to get around these problems. You need a way to seamlessly download the minimum number of bytes from the file in order to extract the technical metadata. The extraction of technical metadata from the asset on S3 becomes the tricky part in this workflow. In this post, I walk you through the process of setting up a workflow to extract technical metadata from multimedia files uploaded to S3 using Lambda. When customers work with media assets like video and audio files on Amazon S3, there is a typical workflow where assets get uploaded to S3, S3 triggers an event for that upload, and that event triggers an AWS Lambda function, which can extract technical metadata from the asset on S3. The technical metadata may also be stored for indexing and fast retrieval in a database service like Amazon DynamoDB or Amazon RDS. The asset may be transcoded to a standard “house” format, resized, or have a quality check performed to make sure it is in an acceptable format. With technical metadata, customers can make intelligent decisions about what to do next in their workflow. Then maybe we did not face yet this format, please contact us and provide the file, we'll check what we can do for extracting such information from your file.For a video asset, technical metadata includes information such as video codec, audio codec, resolution, frame rate, aspect ratio, and a host of other very detailed technical information. First please be confident that this information exists in the file. We can not extract a non existing metadata, we can show only what exists in the analyzed file. You should complain to Samsung about the lack of such metadata in their files. We analyzed the file and we can see that there is a Hyperlapse flag, but time factor is not found. Why don't you show the time factor in a Samsumg Hyperlapse video? You should complain to WhatsApp because they re-encode the video without keeping the original creation date ![]() We show the creation date in the creation date field and we show the recorded date in the recorded date field, when such information is available. ![]() Why do you show the transfer date instead of the recorded date from a WhatsApp video,? Support is available by email (email address on the Play Store page) or web ("contact us" menu). Graphical user interface, command line interface, or library (.dylib) versions available (command line interface and library versions are available separately, free of charge, on the editor website)įor bug reports and questions, please contact the support instead of using the Play Store comments, it would be more efficient. ![]() View information in different formats (text, tree) Subtitles: CEA-608, CEA-708, DTVCC, SCTE-20, SCTE-128, ATSC/53, CDP, DVB Subtitle, Teletext, SRT, SSA, ASS, SAMI. Audio: MPEG Audio (including MP3), AC3, DTS, AAC, Dolby E, AES3, FLAC, Vorbis, PCM. Video: MPEG-1/2 Video, H.263, MPEG-4 Visual (including DivX, XviD), H.264/AVC, Dirac. Tags: Id3v1, Id3v2, Vorbis comments, APE tags. Container: MPEG-4, QuickTime, Matroska, AVI, MPEG-PS (including unprotected DVD), MPEG-TS (including unprotected Blu-ray), MXF, GXF, LXF, WMV, FLV, Real. Chapters: count of chapters, list of chapters. Subtitles: format, codec id, language of subtitle. Audio: format, codec id, sample rate, channels, bit depth, bit rate, language. Video: format, codec id, aspect, frame rate, bit rate, color space, chroma subsampling, bit depth, scan type, scan order. Container: format, profile, commercial name of the format, duration, overall bit rate, writing application and library, title, author, director, album, track number, date. MediaInfo is a convenient unified display of the most relevant technical and tag data for video and audio files. Convenient unified display of the most relevant tech and tag data for A/V files.
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