International organisation for standardisation organisation internationale de normalisation

35.3Summary of discussions

35.3.1m33150 Sub-sample Information for HEVC Still Images and Image Sequences

We like the design with separate boxes and differentiation by flags. Into a study. We note that there are bugs in the specification of both the p12 subsample box and the pt15 use of it (both into defect reports).

35.3.2m33273 Sub-picture considerations for the still image file format

Yes, we prefer the layered design with cropping indicated at the file format level, and then assisted by structures that help you find tiles and their areas. Detailed contributions welcome.

35.3.3m33221 Storage of HEVC Tiled Images in the Image File Format

We seem to have some overlap between the sub-sample approach to tiles and this; we might need to make sure it’s not duplicative. This approach is fairly codec-independent (we think, but we only have one codec for which it works at the moment). Would it be better to have the grid-position info as init data for the hvt1 image type? We might want to box up the init data sub-parts? Can we generalize this for assembly of images from tiles that truly are independent (as well as breaking up an image into tiles)? Perhaps we can put the grid location as the first few bytes of an item of type hvt1?

Into the study (with some of these open questions, and changes mentioned here).

35.3.4m33152 Signalling for Untimed Images in an HEVC Image Sequence

We think that the semantics of this flag is what the semantics of a pict track are, and that maybe needs clarification. If you want a ‘timed still image’ (an oxymoron) use the video handler type, that says that timing is significant (cf animated GIFs). We edit 6.1 in the study to include these semantics.

35.3.5m33153 Use of XMP Metadata in Image File Format

Into the study without the last sentence (which implies that XMP metadata is special, whereas this is true for any item). We need to tighten the normative language.

35.3.6m33143 Auxiliary Pictures for HEVC Still Images

We allow more than one init reference, so the aux image could have two – one to the decoder conf record (box) and one to the extra data, and so on. The aux item reference maybe should point from aux to main image? We think the aux urn should include the type, and be in the order urn:mpeg:hevc:2014:auxid:xxx where xxx is the integer. So, we use init references to refer to hvcC, auxC (HEVC auxiliary information), and so on. Into the study!

35.4Action Points

ISO/IEC CD 23008-12 (SC 29 N 13999)

Part 12: Image file format

CD (2014-04-22)

36.Media presentation description and segment formats (23009-1)

36.1Topics

36.1.1ISO/IEC 23009-1 Media presentation description and segment formats

36.2Contributions

Number	Session	Title	Source	Dispositions
m32943	DASH	SegmentList and SegmentTemplate cardinality in MPEG-DASH	Richard Mitic, Eric Turcotte	Accepted w14345
m33111	DASH	DASH: signaling tile encapsulation modes	Yasuaki Tokumo Shuichi Watanabe Takuya Iwanami	Noted
m33112	DASH	DASH: signaling the continuity of adaptation sets across periods	Yasuaki Tokumo Shuichi Watanabe Takuya Iwanami	Noted
m33166	DASH	Evaluation of client assisted cache friendliness	Remi Houdaille Charline Taibi Stephane Gouache	Noted
m33173	DASH	Scalable HEVC (SHVC) for DASH	K. Ugur M.M. Hannuksela	Noted
m33199	DASH	On Client Authentication and Content Access Authorization	[e-mail],Ozgur Oyman [e-mail],Xin Wang [e-mail],Kilroy Hughes [e-mail],Alex Giladi	Accepted W14443
m33204	DASH	DASH requirement modifications for supporting Spatial Relationship Description feature	[e-mail],Rob Koenen [e-mail],Emmanuel Thomas	Accepted w14511
m33207	DASH	Proposed defect report on DASH	[e-mail], Ingo Hofmann [e-mail], Nikolaus Rettelbach	Accepted W14345
m33208	DASH	Comments on MPEG-DASH Amd.2	[e-mail], Cyril Concolato [e-mail], Jean Le Feuvre [e-mail], Franck Denoual [e-mail], Frederic Maze [e-mail], Eric Nassor	Accepted w14443
m33210	DASH	Usage of DASH SRD for HEVC Tiling	[e-mail], Cyril Concolato [e-mail], Jean Le Feuvre [e-mail], Franck Denoual [e-mail], Fre deric Maze [e-mail], Eric Nassor	Accepted w14443
m33211	DASH	Dependency type signaling in DASH	[e-mail], Cyril Concolato [e-mail], Jean Le Feuvre [e-mail], Franck Denoual [e-mail], Frederic Maze [e-mail], Eric Nassor	Noted
m33213	DASH	DVB Timeline Alignment Interfaces and MPEG-DASH	[e-mail],Oskar van Deventer [e-mail],Emmanuel Thomas	noted
m33216	DASH	Mapping of DASH Role to HTML 5	[e-mail], Cyril Concolato [e-mail], Jean Le Feuvre	Noted
m33218	DASH	On URI signing in DASH	[e-mail], Ray van Brandenburg [e-mail],Emmanuel Thomas	Noted
m33227	DASH	4K live streaming to regular mobile devices - DASH SRD-based	[e-mail],Emmanuel Thomas [e-mail], Omar Niamut [e-mail], Ray van Brandenburg [e-mail], Arjen Veenhuizen [e-mail], Bastiaan Wissingh [e-mail], Lucia D'Acunto	Noted
m33233	DASH	HTTP Streaming for DASH	Imed Bouazizi	Noted
m33234	DASH	Communication Channel for SAND	Imed Bouazizi	Noted
m33236	DASH	CCB CE: updates for a more robust solution	Imed Bouazizi	Noted
m33247	DASH	Signalling of Timed Metadata in DASH	[e-mail], Shaobo Zhang [e-mail], Xin Wang [e-mail], Xavier Ducloux Patrick Gendron	Noted
m33248	DASH	CE-SAND: Differentiated services in DASH	[e-mail], Xin Wang [e-mail], Yuqun Fan [e-mail], Lei Zhou	Noted
m33260	DASH	Carriage of Time Variant Encryption and Signature information in ISOBMFF and its Signaling in DASH	[e-mail], Xin Wang [e-mail], Shaobo Zhang [e-mail], Yongliang Liu	Noted
m33271	DASH	Adaptation of URL Signing in DASH	[e-mail], Xin Wang [e-mail], Shaobo Zhang [e-mail], Yongliang Liu [e-mail], Ozgur Oyman	Noted
m33275	DASH	Extending Representation Format for Media Preparation	Wendell Sun, Arris Group Inc Mukta Kar, Cablelabs Yasser Syed, Comcast	Noted
m33281	DASH	Top-level Descriptor for MPEG-DASH	Benjamin Rainer [e-mail], Christian Timmerer	Accepted
m33283	DASH	MPEG-DASH and Quality of Experience	[e-mail], Christian Timmerer	Noted
m33284	DASH	Ad Insertion and Period Continuity	[e-mail],Thomas Stockhammer	Noted
m33285	DASH	CE Report on SAND	[e-mail],Thomas Stockhammer	Noted
m33286	DASH	CE SAND: Metrics	[e-mail],Thomas Stockhammer	Noted
m33287	DASH	CE SAND: Comments	[e-mail],Thomas Stockhammer	Noted
m33288	DASH	CE CBC: Client Control using Dynamic Servoces	[e-mail],Thomas Stockhammer	Noted
m33289	DASH	Robust DASH-based Live Services	[e-mail],Thomas Stockhammer	deferred
m33292	DASH	Updates to MPD Anchors	[e-mail],Thomas Stockhammer	Accepted w14345
m33293	DASH	Corrigenda Issues for MPEG-DASH	[e-mail],Thomas Stockhammer	Accepted W14345
m33312	DASH	DASH: Mediaprinting for Content Component Copyright Verification	Luntian Mou Tiejun Huang Xin Wang Yongliang Liu	Accepted
m33341	DASH	CE CBC: Detection and Control of Client Bahavior	[e-mail],SHAOBO ZHANG [e-mail],Xin Wang [e-mail],Yuqun Fan Yongliang Liu [e-mail],Roy Yue	noted
m33370	DASH	DASH SANE CE: GBR for VBR Media	Doug Young Suh Yongwoo Cho Kyungmo Park	Noted
m33465	DASH	CCB CE Report	Imed Bouazizi	Noted
m33471	MPEG-DASH	On Extended Profile in 23009-1	[e-mail], Alex Giladi	Accepted w14443
m33472	MPEG-DASH	Corrigenda: on definition of EventType	[e-mail], Alex Giladi	accepted
m33479	MPEG-DASH	Summary of Voting on ISO/IEC 23009-1/PDAM 1	SC 29 Secretariat	Refer w14348
m33481	MPEG-DASH	MPD support for 3DV with depth (Supplementary document)	[e-mail], Jin Young Lee Truong Cong Thang Kugjin Yun Won-Sik Cheong Gwang-soon Lee Namho Hur	noted