Michael Niedermayer
9ec17e45b2
avcodec/h264_refs: Allow slightly larger pps_ref_count[0] in PAFF RAP detection heuristic
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Fixes Ticket4738
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago
Michael Niedermayer
0a6aa30f7c
avcodec/h264_refs: extend RAP heuristic to multiple PPS
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago
Michael Niedermayer
4aa0de644a
avcodec/h264_refs: discard mismatching references
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Fixes inconsistency and out of array access
Fixes: asan_heap-oob_17301a3_2100_cov_3226131691_ff_add_pixels_clamped_mmx.m2ts
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Anton Khirnov
6d4d3fee63
h264: make sure the current picture is not made a long ref multiple times
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Fixes possible invalid reads, once one of those refs is freed, but the
others remain.
CC: libav-stable@libav.org
10 years ago
Anton Khirnov
a0f2946068
h264: use properly allocated AVFrames
10 years ago
James Almer
ba625dd8a1
avcodec: use av_mod_uintp2() where useful
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Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
10 years ago
Vittorio Giovara
6a85dfc830
lavc: Replace av_dlog and tprintf with internal macros
10 years ago
Michael Niedermayer
aa6f58dd96
avcodec/h264_refs: More completely clear slice contexts in ff_h264_remove_all_refs()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
429de04320
avcodec/h264_refs: Do not set reference to things which dont exist
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Fixes deadlock
Fixes Ticket4428
Fixes Ticket4429
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
a38758a97e
avcodec/h264_refs: fix null pointer dereference with -DTRACE
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Found-by: carl
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Carl Eugen Hoyos
b3673f3414
lavc/h264_refs: Fix compilation with -DTRACE.
10 years ago
Anton Khirnov
a12d3188cb
h264: use a smaller struct for the ref lists
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There is no need to store a whole H264Picture, with a full AVFrame
embedded in it. This should allow getting rid of the embedded AVFrame
later.
10 years ago
Anton Khirnov
f42485dbce
h264: use a separate GetBitContext for slice data
10 years ago
Anton Khirnov
95eb35f305
h264: move the ref lists variables into the per-slice context
10 years ago
Anton Khirnov
56febc993b
h264: move the slice type variables into the per-slice context
10 years ago
Anton Khirnov
92c6c2a605
h264: split weighted pred-related vars into per-slice context
10 years ago
Michael Niedermayer
ecfd48dc06
avcodec/h264: Move COPY_PICTURE() to h264.h so it can be used from other parts of the h264 decoder
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
e09ad5bd0d
avcodec/h264_refs: set last_pic_for_ec only if it has not been set previously
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This ensures we do not loose the frame in case or multiple clears
Fixes out of array read
Fixes: asan_heap-oob_2fa47ea_2100_cov_1278768963_ff_add_pixels_clamped_mmx.m2ts
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
855463c007
avcodec/h264: Keep a reference to the last picture for EC
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This and the next commit improve error concealment for
green-block-artifacts-from-canon-100-hs.MOV
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Gabriel Dume
4b1f5e5090
cosmetics: Write NULL pointer inequality checks more compactly
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
10 years ago
Gabriel Dume
f929ab0569
cosmetics: Write NULL pointer equality checks more compactly
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
10 years ago
Michael Niedermayer
19c9d1e8e7
avcodec/h264: in the absence of recovery points, be more tolerant on accepting plain I frames
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Fixes: Ticket3652
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Diego Biurrun
cba4e6062a
More correct printf format specifiers
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This avoids compiler warnings about argument and specifier type mismatch.
11 years ago
Vittorio Giovara
e0c16e4e32
mpegvideo: move mpegvideo formats-related defines to mpegutils.h
11 years ago
Vittorio Giovara
9b749c8274
h264: move relevant fields from Picture to H264Picture
11 years ago
Vittorio Giovara
f4bd9fe326
h264: fix clang warning about uninitialized variable
11 years ago
Vittorio Giovara
17a63ff0cd
h264: update flag name in ff_h264_decode_ref_pic_list_reordering()
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This is the name used in the specifications.
11 years ago
Michael Niedermayer
649686d89b
avcodec/h264_refs: remove lost frames instead of disfavoring them
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
b5005def8a
avcodec/h264: avoid using lost frames as references
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Fixes Ticket3386
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Luca Barbato
f8c507f44b
h264: Refactor ff_h264_decode_ref_pic_list_reordering
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In preparation for MVC support.
11 years ago
Anton Khirnov
98cc9efc5f
h264: prevent two matching fields from being both a short/long ref combination
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Fixes possible access to freed memory.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
11 years ago
Michael Niedermayer
e3d7a3978b
avcodec/h264_refs: improve key frame detection heuristic
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Fixes Ticket3186
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
ab6ea7a819
avcodec/h264_refs: split conditions of if() up for better readability
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Anton Khirnov
4d388c0cd0
h264_refs: make sure not to write over the bounds of the default ref list
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Fixes invalid writes.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC:libav-stable@libav.org
11 years ago
Anton Khirnov
a553c6a347
lavc: use buf[0] instead of data[0] in checks whether a frame is allocated
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data[0] may be NULL for valid frames with hwaccel pixel formats.
11 years ago
Michael Niedermayer
8183e33225
h264_refs: use named constant for setting frame_recovered
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
08a8976196
avcodec/h264: reduce noisiness of "mmco: unref short failure"
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Do not consider it an error if we have no frames and should discard one.
This condition can easily happen when decoding is started from an I frame
Fixes Ticket2811
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
5ac6b6028f
avcodec/h264_refs: modify key frame detection heuristic to detect more cases
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Fixes Ticket2968
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Diego Biurrun
2a61592573
avcodec: Remove some commented-out debug cruft
11 years ago
Michael Niedermayer
c40f51e15b
h264: Always decode MMCOs into temprary array
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When decoding succeeded the array is copied into the permanent one.
This prevents inconsistencies
Fixes assertion failure
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Diego Biurrun
1b6f84a986
h264_refs: Do not print check_opcodes() return value
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The return value provides no useful information and removing the printing
avoids the following warning:
libavcodec/h264_refs.c:788:15: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
12 years ago
Michael Niedermayer
34ea5f418e
h264_refs: check for multiple mismatching long term ref assignments
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Fixes failure of the assert added a few hours ago.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
3f2ce24f59
h264_refs: assert that the references are not deallocated
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
fbb6741a84
h264_refs: assert that long ref fields have not been inserted multiple times
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
92002db3eb
h264_refs: Check for attempts to assign pictures to short & long.
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Fixes null pointer dereference
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
7fa00653a5
h264: add a parameter to the FIELD_PICTURE macro.
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This way it does not look like a constant.
12 years ago
Michael Niedermayer
fa7031ad37
h264_refs: fix typo in refs fallback check
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Fixes regression since 01a0283
Fixes Ticket2371
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
01a0283c92
h264: disallow single unpaired fields as references of frames
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Fixes deadlock
12 years ago
Anton Khirnov
c2597c5a0a
h264_refs: cosmetics, reformat
12 years ago
Anton Khirnov
759001c534
lavc decoders: work with refcounted frames.
12 years ago