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| author | Leena Winterrowd <lenhardw@codeaurora.org> | 2014-11-04 21:27:34 -0800 |
|---|---|---|
| committer | Lajos Molnar <lajos@google.com> | 2015-01-28 21:52:09 -0800 |
| commit | 9aff25fb41f516ac26f9d1983a25402909f1e77a (patch) | |
| tree | b4148a4cf5c8e97959847a839a2f559272c506c1 /media/libstagefright/include | |
| parent | 79971c747e62cad50359286f18dee0c4de5829da (diff) | |
| download | frameworks_av-9aff25fb41f516ac26f9d1983a25402909f1e77a.zip frameworks_av-9aff25fb41f516ac26f9d1983a25402909f1e77a.tar.gz frameworks_av-9aff25fb41f516ac26f9d1983a25402909f1e77a.tar.bz2 | |
stagefright: httplive: Reduce memcpy calls for chunked content
Streams using http chunking will not report the segment's total
content-length. In this case, a 64k buffer is allocated and is
increased by 32k each time the buffer is filled again. For high
bitrate content, this can lead to a large number of copies that
affect the HLS framework delay. Increase fetchFile buffer size
exponentially by 50% or at least 32k instead of by 32k each time
to reduce the number of memcpy calls.
Example for a chunked 6 MB 1080p segment (ie ~3s):
Adding 32k:
190 copies with 572.97 MB copied
Increasing by 50%:
12 copies with 16.09 MB copied
Bug: 18821145
Change-Id: Iedf0e4437e96026a58d50bce2660f85ac90d0ada
Diffstat (limited to 'media/libstagefright/include')
0 files changed, 0 insertions, 0 deletions