aboutsummaryrefslogtreecommitdiffstats
path: root/libavcodec/snow.h
diff options
context:
space:
mode:
authorAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-02-04 14:17:33 +0100
committerAndreas Rheinhardt <andreas.rheinhardt@outlook.com>2022-02-08 06:10:08 +0100
commit115ac90ec99af35838f65fc5b8f1b27e2ca4ab37 (patch)
tree7ab4c4d1a598fdb60af38a67bda538b84d289a8b /libavcodec/snow.h
parent66d7a211329e79ad61316f67726e89d07c21d862 (diff)
downloadffmpeg-115ac90ec99af35838f65fc5b8f1b27e2ca4ab37.tar.gz
avcodec/cbs_mpeg2: Simplify splitting fragment
avpriv_find_start_code() supports non-contiguous buffers by maintaining a state that allows to find start codes that span across multiple buffers; a consequence thereof is that avpriv_find_start_code() is given a zero-sized buffer, it does not modify this state, so that it appears as if a start code was found if the state contained a start code. This can e.g. happen with Sequence End units in MPEG-2 and to counter this, cbs_mpeg2_split_fragment() reset the state when it has already encountered the end of the fragment in order to add the last unit (if it is only of the form 00 00 01 xy) only once; it also used a flag to set whether this is the final unit. Yet this can be improved by simply resetting state unconditionally (thereby avoiding a branch); the flag can be removed by just checking whether we have a valid start code (of the next unit to add) at the end. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec/snow.h')
0 files changed, 0 insertions, 0 deletions