| 55afb9d20dc6c001fd6667f6a4d7d3399aa2e62c |
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15-Mar-2018 |
Venkatarama NG. Avadhani <venkatarama.avadhani@ittiam.com> |
Adding Check For Number of Skip MBs
Adding check for the value parsed into number of skip MBs. The skip MBs
function should be called only if the number of skip MBs is more than 0.
Bug: 74016277
Test: POC before/after
Change-Id: Iba1cc7b7e214efaeba510d180495a61105bf2125
(cherry picked from commit 414cd5db73a8cc3cd64bdad954475becffa40478)
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| 4262d8eeee23d169ab0a141f103592f7172d95bc |
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12-Jul-2017 |
Venkatarama Avadhani <venkatarama.avadhani@ittiam.com> |
Update num_mbs_left When mb_x is Reset.
When we reset the mb_x values, the num_mbs_left should also be
reset accordingly. Added the code for the same in
impeg2d_dec_pnb_mb_params. Also, there was nothing to do in p
frames when the first_mb was set to 1. Added code for setting
mb_x value and updating the num_mbs left similar to
"impeg2d_dec_pnb_mb_params" function.
Bug: 63874456
Test: run PoC through before/after ASAN build
Change-Id: I7a0bfc33e22c0e8cb93ff29198f30052f7f96546
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| 89b4c1cf9e2d18c27c2d9c8c7504e5e2d79ef289 |
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27-Jun-2017 |
Venkatarama Avadhani <venkatarama.avadhani@ittiam.com> |
Check Number of MBs to Skip.
The number of skip mbs was parsed as 0 and impeg2d_dec_skip_mbs was getting
called with a large number because of underflow.
Added a check for the same
Bug: 63125953
Test: run PoC on ASAN-enabled mpeg2dec before/after
Change-Id: I07f43c1745e38e800751997e97d44d2bab0615a8
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| 2df080153464bf57084d68ba3594e199bc140eb4 |
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08-Jun-2017 |
Venkatarama Avadhani <venkatarama.avadhani@ittiam.com> |
Fixed Memory Overflow Errors
In function impeg2d_dec_p_b_slice, there was no check for num_mbs_left ==
0 after skip_mbs function call. Hence, even though it should have returned
as an error, it goes ahead to decode the frame and writes beyond the
buffer allocated for output. Put a check for the same.
Bug: 38207066
Test: before/after execution of PoC on angler/nyc-mr2-dev
Change-Id: If4b7bea51032bf2fe2edd03f64a68847aa4f6a00
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| f217b853e7527552290bd047381338f934bccdd6 |
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05-Apr-2017 |
Venkatarama Avadhani <venkatarama.avadhani@ittiam.com> |
Check Number of Skip MBs
Adding check to make sure the number of skip MBs do not exceed the total
number of MBs left to decode.
Bug: 34231163
Change-Id: I62ceffdafcbc0c6d580f6ae1b5b9ab0708a7134f
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| 58a6822d7140137ce957c6d2fc20bae1374186c1 |
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23-Nov-2015 |
Harish Mahendrakar <harish.mahendrakar@ittiam.com> |
Return error for wrong mb_type
If mb_type decoded returns an invalid type of MB, then return error
Bug: 26070014
Change-Id: I66abcad5de1352dd42d05b1a13bb4176153b133c
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| b34913857dacd4b7f82715c48ae1de9c56ede9e0 |
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16-Apr-2015 |
Venkatarama Avadhani <venkatarama.avadhani@ittiam.com> |
Fixed few issues seen in CTS tests
Buffer managers are reset to init state in reset()
Return picture type of picture being output instead of picture decoded
Read start code only if input bitstream has enough bytes
Bug: 22860270
Change-Id: Ic158d9dbff6d6b5295173b6ff2a4c6d6da66115f
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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| aed24eee7ddfc93f1436b0c1679431bd286879b4 |
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11-Mar-2015 |
Venkatarama Avadhani <venkatarama.avadhani@ittiam.com> |
Initial version
Change-Id: I5a9473876e596e7461e91f971b0243f694f7e8fb
/external/libmpeg2/decoder/impeg2d_pnb_pic.c
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