Module: libav Branch: master Commit: 8923cfa328e8eb565aebcfe8672b276fd1c19bf7
Author: Jindrich Makovicka <[email protected]> Committer: Anton Khirnov <[email protected]> Date: Thu Jun 30 09:03:15 2011 +0000 mpegts: fix Continuity Counter error detection According to MPEG-TS specs, the continuity_counter shall not be incremented when the adaptation_field_control of the packet equals '00' or '10'. Signed-off-by: Jindrich Makovicka <[email protected]> Signed-off-by: Anton Khirnov <[email protected]> --- libavformat/mpegts.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c index 43cd1fb..228f48b 100644 --- a/libavformat/mpegts.c +++ b/libavformat/mpegts.c @@ -1248,7 +1248,7 @@ static int handle_packet(MpegTSContext *ts, const uint8_t *packet) { AVFormatContext *s = ts->stream; MpegTSFilter *tss; - int len, pid, cc, cc_ok, afc, is_start; + int len, pid, cc, expected_cc, cc_ok, afc, is_start; const uint8_t *p, *p_end; int64_t pos; @@ -1266,7 +1266,8 @@ static int handle_packet(MpegTSContext *ts, const uint8_t *packet) /* continuity check (currently not used) */ cc = (packet[3] & 0xf); - cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc)); + expected_cc = (packet[3] & 0x10) ? (tss->last_cc + 1) & 0x0f : tss->last_cc; + cc_ok = (tss->last_cc < 0) || (expected_cc == cc); tss->last_cc = cc; /* skip adaptation field */ _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
