On Thu, Dec 20, 2018 at 11:00:32AM +0100, Nicolas George wrote: > Andrey Semashev (2018-12-10): > > This commit adds a new set of functions to avio and url subsystems, which > > allow users to invoke IO buffer synchronization with the underlying media. > > The most obvious target for this extension if the filesystem streams. > > Invoking > > IO synchronization allows user applications to ensure that all written > > content > > has reached the filesystem on the media and can be observed by other > > processes. > > > > The public API for this is avio_sync() function, which can be called on > > AVIOContext. The internal, lower layer API is ffurl_sync(), which works > > directly on the underlying URLContext. URLContext backends can add support > > for > > this new API by setting the sync handler to the new url_sync member of > > URLProtocol. When no handler is set then the sync operation is a no-op, > > the result code is AVERROR(ENOSYS). > > --- > > libavformat/avio.c | 7 +++++++ > > libavformat/avio.h | 20 ++++++++++++++++++++ > > libavformat/aviobuf.c | 17 +++++++++++++++++ > > libavformat/url.h | 12 ++++++++++++ > > 4 files changed, 56 insertions(+) > > I have no more objections to the patch as it is, thanks. But I have no > opinion in favor of it either; it is useful in principle, but I do not > know if it is worth the extra maintenance for a use case like this > project. I will leave the judgement to others.
IMHO, it looks useful and extra maintaince needed seems not major thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The bravest are surely those who have the clearest vision of what is before them, glory and danger alike, and yet notwithstanding go out to meet it. -- Thucydides
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