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6 Commits

Author SHA1 Message Date
Michael Niedermayer
93456ca3ea avcodec/htmlsubtitles: Replace very slow redundant sscanf() calls by cleaner and faster code 
This reduces the worst case from O(n²) to O(n) time

Fixes Timeout
Fixes: 2127/clusterfuzz-testcase-minimized-6595787859427328

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4132218b87cd6fb13abd162e3037ef4563286baa)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-07-19 15:26:37 +02:00
Michael Niedermayer
9e54114647 avcodec/htmlsubtitles: Check for string truncation and return error 
Fixes out of array access
Fixes: 1354/clusterfuzz-testcase-minimized-5520132195483648

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f4ae3cce64bd46b1d539bdeac39753f83015f114)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-05-14 00:21:49 +02:00
Michael Niedermayer
04bd1b38ee avcodec/htmlsubtitles: Fix reading one byte beyond the array 
Fixes: fuzz-2-ffmpeg_SUBTITLE_AV_CODEC_ID_SUBRIP_fuzzer

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2016-11-12 03:23:03 +01:00
Rodger Combs
d2d020bb32 avcodec/htmlsubtitles: handle leading whitespace before tag names 
This fixes cases like `</ font>`.

Signed-off-by: Clément Bœsch <u@pkh.me>
 2015-09-06 15:48:34 +02:00
Clément Bœsch
26786f43d7 avcodec/htmlsubtitles: drop avcodec dependency 2015-09-06 13:39:04 +02:00
Yayoi
50332f8a6b avcodec/srtdec: factor out HTML parsing code 
This code will be used in SAMI decoder in a later commit.

Signed-off-by: Clément Bœsch <u@pkh.me>
 2015-09-06 13:07:44 +02:00