Re: [Cellar] Matroska Elements to support frame side data
Tobias Rapp <t.rapp@noa-archive.com> Fri, 02 November 2018 09:31 UTC
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From: Tobias Rapp <t.rapp@noa-archive.com>
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Date: Fri, 02 Nov 2018 10:31:47 +0100
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Subject: Re: [Cellar] Matroska Elements to support frame side data
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Hi Dave, On 01.11.2018 15:03, Dave Rice wrote: > [...] > > Here are a few use cases where I think this structure could be helpful: > > === timecode > We’ve made many starts and stops at defining how to store timecode in > Matroska but haven’t found consensus or resolution on those attempts. > With the Metadata Element I think a timecode value could be stored such as > > Cluster/ > Timestamp=01:00:00.000 > BlockGroup/ > Block/ > ... > Metadata/ > MetadataName=“timecode" > MetadataString="01:23:45;12” while I think that frame side data can be useful for the DPX scenario mentioned later, I see problems with storing timecode information that way. Shall timecode be attached to the video or audio track? Shall there be some sub-classification for VITC/LTC/other timecode sources? Also I would prefer the timecode value to be stored as a number instead of a string representation, for the same reason that the Cluster Timestamp element uses a numerical representation: It makes processing a lot easier. Best regards, Tobias
- [Cellar] Matroska Elements to support frame side … Dave Rice
- Re: [Cellar] Matroska Elements to support frame s… Tobias Rapp
- Re: [Cellar] Matroska Elements to support frame s… Dave Rice
- Re: [Cellar] Matroska Elements to support frame s… Tobias Rapp
- Re: [Cellar] Matroska Elements to support frame s… Moritz Bunkus
- Re: [Cellar] Matroska Elements to support frame s… Jerome Martinez
- Re: [Cellar] Matroska Elements to support frame s… Jerome Martinez
- Re: [Cellar] Matroska Elements to support frame s… Moritz Bunkus
- Re: [Cellar] Matroska Elements to support frame s… Tobias Rapp
- Re: [Cellar] Matroska Elements to support frame s… Steve Lhomme
- Re: [Cellar] Matroska Elements to support frame s… Dave Rice
- Re: [Cellar] Matroska Elements to support frame s… Steve Lhomme
- Re: [Cellar] Matroska Elements to support frame s… Luca Barbato
- Re: [Cellar] Matroska Elements to support frame s… Michael Richardson
- Re: [Cellar] Matroska Elements to support frame s… Steve Lhomme
- Re: [Cellar] Matroska Elements to support frame s… Steve Lhomme
- [Cellar] IANA considerations text to reserve WebM… Michael Richardson
- Re: [Cellar] Matroska Elements to support frame s… Michael Bradshaw