[ogg-dev] adwantages of ogg container?
Benjamin M. Schwartz
bmschwar at fas.harvard.edu
Sun Aug 29 16:13:11 PDT 2010
On 08/29/2010 06:16 PM, Alexey Fisher wrote:
> Are there any options to recover
> video with missing header? Or tip for archiving, for example make some
> recorevable stream with backup header?
If the whole first portion of the file is missing, then regenerating the
header is, in the abstract, a hard problem involving searching a very
large solution space. In practice, many encoders (e.g. libtheora) use
only a relatively small set of header parameters, so searching them might
If you want to increase loss resilience with Ogg, the most direct way is
to break up your stream into a series of independent segments, encode each
segment as a separate Ogg file (with its own headers), and then directly
concatenate the resulting files into a single output file. The resulting
file is called a "chained ogg", and is a valid Ogg file. However, chained
oggs are rare in the wild, so only a few players have good support for
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