Michael Niedermayer
39afd0482f
avcodec/ituh263dec: Implement U263s interpretation of H.263 B frames
...
Fixes Ticket1536
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
Michael Niedermayer
0126cd95cc
avcodec/ituh263dec: Correct timestamp recovery for B frames
...
Improves u263_b-frames_5.avi
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
Michael Niedermayer
901c625494
avcodec/ituh263dec: Use correct error codes in ff_h263_decode_mb()
...
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
Michael Niedermayer
e00c516d1e
avcodec/ituh263dec: Correct indention
...
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
Michael Niedermayer
b28ae1e09b
avcodec/ituh263dec: Implement B frame support with UMV
...
Fixes: u263_b-frames_1.avi
Fixes part of Ticket1536
return -1 is used here as it is used in similar code in this function, I intend
to replace it by proper error codes in the whole function.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
Michael Niedermayer
2baf36caed
avcodec/ituh263dec: Avoid spending a long time in slice sync
...
Fixes: 177/fuzz-3-ffmpeg_VIDEO_AV_CODEC_ID_FLV1_fuzzer
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
Clément Bœsch
6c98398b0b
lavc/get_bits: add a logging context to check_marker()
...
Based on d338abb664
9 years ago
Vittorio Giovara
41ed7ab45f
cosmetics: Fix spelling mistakes
...
Signed-off-by: Diego Biurrun <diego@biurrun.de>
9 years ago
Lou Logan
06eef96b69
fix some a/an typos
...
Signed-off-by: Lou Logan <lou@lrcd.com>
9 years ago
Luca Barbato
0a49a62f99
h263: Always check both dimensions
...
CC: libav-stable@libav.org
Found-By: ago@gentoo.org
10 years ago
Luca Barbato
6f4cd33efb
cosmetic: Reformat ff_h263_decode_mba
10 years ago
Vittorio Giovara
e7af52a68d
mpegvideo: rv10: Move function declaration to a separate header
10 years ago
Vittorio Giovara
e3d0f49abb
mpegvideo: h263: Move all tables to a single file
10 years ago
Vittorio Giovara
378a00087f
mpegvideo: Move tables to a separate file
10 years ago
Anton Khirnov
6f57375d70
rl: Rename ff_*_rl() to ff_rl_*()
10 years ago
Vittorio Giovara
9c1db92ad3
mpegvideo: Drop err_recognition
...
It is just a duplicate of an AVCodecContext member so use it instead.
10 years ago
Michael Niedermayer
7b94a2f4b1
avcodec/ituh263dec: Use ff_tlog() for block level information
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Vittorio Giovara
6a85dfc830
lavc: Replace av_dlog and tprintf with internal macros
10 years ago
Michael Niedermayer
fbdaebb298
avcodec/ituh263dec: Use check_marker()
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Vittorio Giovara
c01ccccbb1
ituh263dec: use macro instead of #if
10 years ago
Anton Khirnov
7ea1b3472a
lavc: deprecate the use of AVCodecContext.time_base for decoding
...
When decoding, this field holds the inverse of the framerate that can be
written in the headers for some codecs. Using a field called 'time_base'
for this is very misleading, as there are no timestamps associated with
it. Furthermore, this field is used for a very different purpose during
encoding.
Add a new field, called 'framerate', to replace the use of time_base for
decoding.
10 years ago
Reimar Döffinger
e8d0b84e8a
h261dec, ituh263dec: Move condition.
...
Stops compiler from doing incredibly stupid things.
With vsynth1-flv inner loop goes from 3501 to 3275
decicycles.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
10 years ago
Reimar Döffinger
36c0043344
h261dec, ituh263dec: ensure CLOSE_READER is done on error paths, too.
...
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
10 years ago
Reimar Döffinger
2a00812d82
h261dec, ituh263dec: Avoid unnecessary -1 inside inner loop.
...
3646 -> 3597 decicycles in inner loop when decoding
vsynth1-flv.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
10 years ago
Reimar Döffinger
935453102b
ituh263dec: Optimize new RL_VLC based decoding.
...
Together with the switch to RL_VLC this results in
a speedup of about 30% in this inner loop.
Overall speedup only relevant for medium to high bitrate
streams.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
10 years ago
Reimar Döffinger
da0a670b3c
h261, h263 decoders: convert to RL_VLC.
...
Some additional optimizations in following patch.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
10 years ago
Diego Biurrun
e74433a8e6
dsputil: Split clear_block*/fill_block* off into a separate context
11 years ago
Vittorio Giovara
e0c16e4e32
mpegvideo: move mpegvideo formats-related defines to mpegutils.h
11 years ago
Keiji Costantini
9514440337
ituh263: reject b-frame with pp_time = 0
...
Avoid a division by 0 in ff_mpeg4_set_one_direct_mv.
Sample-Id: 00000168-google
Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
11 years ago
Michael Niedermayer
2d2b363c65
h263: remove unused ff_h263_find_resync_marker()
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Anton Khirnov
ee8af2dd99
mpeg4videodec: move MpegEncContext.shape to Mpeg4DecContext
11 years ago
Michael Niedermayer
f4d3127197
avcodec/ituh263dec: Use skip_1stop_8data_bits()
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
810f9c5eaa
avcodec/ituh263dec: make while get_bits loop more robust by checking bits left
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Anton Khirnov
a1c5cc429d
lavc: don't set AVFrame.pts to random numbers in decoders.
11 years ago
Michael Niedermayer
f55a7ba037
avcodec/ituh263dec: detect and warn about RTP
...
Fixes Ticket925
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
7495186fd4
avcodec/h263dec: fix aspect of lead h263 EHC
...
Fixes part of ticket925
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Diego Biurrun
2832ea26f3
Remove commented-out debug #define cruft
12 years ago
Diego Biurrun
6fee1b90ce
avcodec: Add av_cold attributes to init functions missing them
12 years ago
Anton Khirnov
759001c534
lavc decoders: work with refcounted frames.
12 years ago
Diego Biurrun
c242bbd8b6
Remove unnecessary dsputil.h #includes
12 years ago
Diego Biurrun
218aefce44
dsputil: Move LOCAL_ALIGNED macros to libavutil
12 years ago
Anton Khirnov
ca1fe6c0e6
h263: remove an unused parameter from ff_h263_decode_init_vlc
12 years ago
Diego Biurrun
88bd7fdc82
Drop DCTELEM typedef
...
It does not help as an abstraction and adds dsputil dependencies.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
12 years ago
Michael Niedermayer
623184afa2
itu H.263: Fix handling of PB blocks
...
This fixes artifacts in Ticket744
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
62006b539d
ituh263dec: more complete w/h check.
...
Fixes a division by 0
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
f44be0da94
ff_h263_decode_init_vlc: fix order of operations to avoid failure with 2 threads
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anuj Mittal
8d2e0e2c70
Check for resync marker based on vop coding type- vop_fcode_forward and vop_fcode_backward L
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anuj Mittal
ce19aec15b
Check resync marker only when enabled.
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
36ef5369ee
Replace all CODEC_ID_* with AV_CODEC_ID_*
13 years ago
Michael Niedermayer
91ce7c21f0
ituh263dec: use av_assert
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago