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avcodec/hevc_ps: Check default display window bitstream and skip if invalid

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Fixes Ticket4035

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-10-27 14:03:09 +01:00
parent 69a9a90d2e
commit 852aaead1f
1 changed files with 5 additions and 1 deletions
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6
libavcodec/hevc_ps.c
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@ -525,7 +525,11 @@ static void decode_vui(HEVCContext *s, HEVCSPS *sps)
vui->field_seq_flag = get_bits1(gb);
vui->frame_field_info_present_flag = get_bits1(gb);
vui->default_display_window_flag = get_bits1(gb);
if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) {
vui->default_display_window_flag = 0;
av_log(s->avctx, AV_LOG_WARNING, "Invalid default display window\n");
} else
vui->default_display_window_flag = get_bits1(gb);
// Backup context in case an alternate header is detected
memcpy(&backup, gb, sizeof(backup));