1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00

vc1dec: Don't apply the loop filter on fields

Fixes read of uninitialized memory.

Based on a patch by Michael Niedermayer.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2013-05-14 14:36:00 +03:00
parent fe06795d78
commit 5d9d8461fb
2 changed files with 32 additions and 31 deletions

View File

@ -4619,7 +4619,8 @@ static void vc1_decode_p_blocks(VC1Context *v)
break;
}
apply_loop_filter = s->loop_filter && !(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY);
apply_loop_filter = s->loop_filter && !(s->avctx->skip_loop_filter >= AVDISCARD_NONKEY) &&
v->fcm == PROGRESSIVE;
s->first_slice_line = 1;
memset(v->cbp_base, 0, sizeof(v->cbp_base[0])*2*s->mb_stride);
for (s->mb_y = s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
@ -4633,7 +4634,7 @@ static void vc1_decode_p_blocks(VC1Context *v)
else if (v->fcm == ILACE_FRAME)
vc1_decode_p_mb_intfr(v);
else vc1_decode_p_mb(v);
if (s->mb_y != s->start_mb_y && apply_loop_filter && v->fcm == PROGRESSIVE)
if (s->mb_y != s->start_mb_y && apply_loop_filter)
vc1_apply_p_loop_filter(v);
if (get_bits_count(&s->gb) > v->bits || get_bits_count(&s->gb) < 0) {
// TODO: may need modification to handle slice coding

View File

@ -1,31 +1,31 @@
#tb 0: 1/25
0, 0, 0, 1, 518400, 0x89407f55
0, 2, 2, 1, 518400, 0xeb8d84a1
0, 3, 3, 1, 518400, 0x2121ff57
0, 4, 4, 1, 518400, 0xd81adb3d
0, 5, 5, 1, 518400, 0x01e36aa2
0, 6, 6, 1, 518400, 0x6b802361
0, 7, 7, 1, 518400, 0xc8403c77
0, 8, 8, 1, 518400, 0xdd342b5d
0, 9, 9, 1, 518400, 0x2100eea5
0, 10, 10, 1, 518400, 0x92a22da6
0, 11, 11, 1, 518400, 0x6bacdef7
0, 12, 12, 1, 518400, 0x4a00715f
0, 13, 13, 1, 518400, 0x59b98727
0, 14, 14, 1, 518400, 0xbf912ee1
0, 15, 15, 1, 518400, 0x8c966cd6
0, 16, 16, 1, 518400, 0x2c9a2535
0, 17, 17, 1, 518400, 0x29085c06
0, 18, 18, 1, 518400, 0x46ae6b7d
0, 19, 19, 1, 518400, 0x283100f4
0, 20, 20, 1, 518400, 0x2731b5ff
0, 21, 21, 1, 518400, 0x1132ea54
0, 22, 22, 1, 518400, 0x37cbe539
0, 23, 23, 1, 518400, 0x08ff75cf
0, 24, 24, 1, 518400, 0xafb6bc45
0, 25, 25, 1, 518400, 0x19d3873d
0, 26, 26, 1, 518400, 0xd494a8be
0, 27, 27, 1, 518400, 0x285f41ef
0, 28, 28, 1, 518400, 0xd4b1ffa1
0, 29, 29, 1, 518400, 0xc3876c3a
0, 30, 30, 1, 518400, 0xb73dbb62
0, 2, 2, 1, 518400, 0x1480849d
0, 3, 3, 1, 518400, 0x0e69ff59
0, 4, 4, 1, 518400, 0x00d6db06
0, 5, 5, 1, 518400, 0x1a5b6a69
0, 6, 6, 1, 518400, 0xc1a1232e
0, 7, 7, 1, 518400, 0x9a4e3c54
0, 8, 8, 1, 518400, 0x04122b44
0, 9, 9, 1, 518400, 0x0fcfeebc
0, 10, 10, 1, 518400, 0xc7882dc1
0, 11, 11, 1, 518400, 0x9d79df09
0, 12, 12, 1, 518400, 0xff6b716f
0, 13, 13, 1, 518400, 0x638a8746
0, 14, 14, 1, 518400, 0x07572efb
0, 15, 15, 1, 518400, 0x306f6cef
0, 16, 16, 1, 518400, 0xd7602518
0, 17, 17, 1, 518400, 0x49ab5bf5
0, 18, 18, 1, 518400, 0x3c736b6c
0, 19, 19, 1, 518400, 0x95ae00c9
0, 20, 20, 1, 518400, 0x7b9ab64e
0, 21, 21, 1, 518400, 0x5205ea68
0, 22, 22, 1, 518400, 0xb486e618
0, 23, 23, 1, 518400, 0xa3217616
0, 24, 24, 1, 518400, 0xc66bbc56
0, 25, 25, 1, 518400, 0xf024872a
0, 26, 26, 1, 518400, 0x97d2a8ba
0, 27, 27, 1, 518400, 0xa3a2418e
0, 28, 28, 1, 518400, 0x08460005
0, 29, 29, 1, 518400, 0x50fb6c94
0, 30, 30, 1, 518400, 0x5584bb40