Iso Iec 14496-15 Pdf Download UPDATED Full Spec
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1 In GIF and indexed color PNG encoding, lossy color quantization is applied while the color-quantized image is losslessly compressed. 2 PCM, µ-Law PCM and ADPCM encapsulated in RIFF WAV 3 Only for animations and tiling/overlaying 4 JPX is a box-structured format compatible with ISOBMFF. However, only the File Type box is common in JPX and ISOBMFF. 5 Encapsulation of JPEG-2000 and JPEG-XR have been specified for JPX container. Mappings for other codecs could be similarly specified. 6 JPX (ITU-T T.800 and T.801) specifies an own metadata schema, but is capable of carrying an XML formatted metadata, such as XMP. 7 JPX can contain media complying with ISOBMFF (or derivatives thereof). No accurate synchronization between JPX animations and other media. 8 TIFF as a container format facilitates extensions to other coding formats. 9 Only for animations, thumbnails, and alpha planes. Non-timed image collections not supported. 10 HEVC Main 4:4:4 16 Still Picture profile, Level 8.5, with additional constraints 11 Can be enabled through the MP extension 12 A palette index for fully transparency can be specified
The most important features that enable controlling the playback of an HEIF file are listed in Table X. Some of these features were introduced in the ISOBMFF or ISO/IEC 14496-15 and are explicitly inherited by HEIF, while other features were specifically designed for the HEIF standard.
Table X. Features controlling image sequence playback. Feature First appeared in Description non-displayable sample ISO/IEC 14496-15 Is never displayed, but can be used as a reference for predicting other images in the track. timed vs. non-timed playback HEIF In timed playback, the image sequence is played as video, whereas in non-timed playback the samples of the track are displayed by other means, such as an image gallery. Non-timed playback may be indicated e.g. when a track is used for achieving a better compression efficiency for an exposure stack. edit list ISOBMFF A list of ranges of the image sequence track in their playback order. Enables modifying the playback order and pace of samples. looping HEIF HEIF allows indicating edit list repetition e.g. for looping animations. The repetition can be indicated to last for a certain duration or be infinite. cropping and rotation ISOBMFF Rectangular cropping and rotation by 90, 180, 270 degrees can be specified.
The Multi-Image Application Format (MIAF) specification defines additional constraints and interoperability points to ensure higher interoperability, while fully conforming to the HEIF format. This is done by defining specific constraints, limiting the supported encoding types to a set of specific profiles and levels (see Table XI), requiring specific metadata formats, and defining a set of brands for signalling such constraints (see Table XII). This enables the industry to deploy particular uses of the HEIF specification.
MPEG has standardized a number of specifications extending the ISO base media file format: The MP4 file format (ISO/IEC 14496-14) defined some extensions over ISO base media file format to support MPEG-4 visual/audio codecs and various MPEG-4 Systems features such as object descriptors and scene descriptions. The MPEG-4 Part 3 (MPEG-4 Audio) standard also defined storage of some audio compression formats. Storage of MPEG-1/2 Audio (MP3, MP2, MP1) in the ISO base media file format was defined in ISO/IEC 14496-3:2001/Amd 3:2005.[36] The Advanced Video Coding (AVC) file format (ISO/IEC 14496-15) defined support for H.264/MPEG-4 AVC video compression.[37] The High Efficiency Image File Format (HEIF) is an image container format using the ISO base media file format as the basis. While HEIF can be used with any image compression format, it specifically includes the support for HEVC intra-coded images and HEVC-coded image sequences taking advantage of inter-picture prediction.
The ISO/IEC base media file format supports streaming of media data over a network as well as local playback. A file that supports streaming includes information about the data units to stream (how to serve the elementary stream data in the file over streaming protocols). This information is placed in additional tracks of the file called "hint" tracks. Separate "hint" tracks for different protocols may be included within the same file. The media will play over all such protocols without making any additional copies or versions of the media data. Existing media can be easily made streamable for other specific protocols by the addition of appropriate hint tracks. The media data itself need not be reformatted in any way. The streams sent by the servers under the direction of the hint tracks, need contain no trace of file-specific information. When the presentation is played back locally (not streamed), the hint tracks may be ignored. Hint tracks may be created by an authoring tool or may be added to an existing file (presentation) by a hinting tool.[2] In media authored for progressive download, the moov box, which contains the index of frames, should precede the movie data mdat box.[59]
ISO/IEC 14496-15:2010 defines a storage format for video streams compressed using any of the coding standards defined in ISO/IEC 14496-10 (Advanced Video Coding), including not only the AVC video format, but also Scalable Video Coding (SVC) and Multiview Video Coding (MVC), in order to enable the best visibility of, and access to, the advanced features of the video coding standard, and to enhance the opportunities for the interchange and interoperability of media.ISO/IEC 14496-15:2010 specifies how these video streams are stored in file formats derived from ISO/IEC 14496-12 & 15444-12 (The ISO base media file format). As a consequence, it therefore defines how AVC streams are stored in ISO/IEC 14496-14 (the MP4 file format).ISO/IEC 14496-15:2010 can be used as a stand-alone specification, but it is normally expected that it will be used in the context of other standards using both the ISO Base Media File Format and AVC. ISO/IEC 14496-15:2010 enables but does not require the use of MPEG-4 systems structures.Substantial support for the scalability and multiview coding in the file format enables identification, selection, and extraction of scalable layers or views, without scanning the entire video stream. AVC compatibility may be maintained, and streams with expected subsets of the scalable layers, or views, can be pre-computed and stored efficiently.ISO/IEC 14496-15:2010 enables AVC, SVC and MVC video streams to:be used in conjunction with other media streams, such as audio,be formatted for delivery by a streaming server, using hint tracks, andinherit all the use cases and features of the ISO base media file.
The Advanced Video Coding (AVC) standard, jointly developed by the ITU-T and ISO/IEC SC29/WG11 (MPEG), offers not only increased coding efficiency and enhanced robustness, but also many features for the systems that use it. To enable the best visibility of, and access to, those features, and to enhance the opportunities for the interchange and interoperability of media, ISO/IEC 14496-15:2004 defines a storage format for video streams compressed using AVC.ISO/IEC 14496-15:2004 specifies how Advanced Video Coding (AVC) streams are stored in file formats derived from ISO/IEC 14496-12 & 15444-12 (The ISO Base Media File Format). As a result, it therefore also defines how AVC streams are stored in ISO/IEC 14496-14 (The MP4 File Format).ISO/IEC 14496-15:2004 can be used as a stand-alone specification, but it is normally expected that it will be used in the context of other standards using both the ISO Base Media File Format and AVC. ISO/IEC 14496-15:2004 enables but does not require the use of MPEG-4 systems structures.In ISO/IEC 14496-15:2004 extensions to the ISO Base Media File Format are also defined, to support some of the new features offered by AVC. It is possible that these extensions will in the future be applied to a revision of the ISO Base Media File Format. Simple use of AVC is possible without using any of these structural extensions.ISO/IEC 14496-15:2004 enables AVC video streams to:be used in conjunction with other media streams, such as audio;be formatted for delivery by a streaming server, using hint tracks;inherit all the use cases and features of the ISO Base Media File Format on which MP4 and MJ2 are based.
The video track of each fragment must contain codec private data in the Advanced Video Coding (AVC) for H.264 format and HEVC for H.265 format. For more information, see MPEG-4 specification ISO/IEC 14496-15. For information about adapting stream data to a given format, see NAL Adaptation Flags. 2b1af7f3a8
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