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
Michael Niedermayer
c8f4c83e70
h.263dec: use av_assert
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Ronald S. Bultje
17fad33f81
Change all uses of restrict to use av_restrict instead.
...
Defining restrict results - for some compilers - in changing other
uses of the restrict keyword also, e.g. __declspec(restrict) gets
changed to __declspec(__restrict) on MSVC. This causes compilation
failures. Therefore, using a private namespace macro instead is
more reliable and robust.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
cc229d4e83
h263: disable loop filter with lowres
...
Fixes ticket1212
Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
1f05dcbad2
ituh263dec: Implement enough of Annex O (scalability) to fix a FPE.
...
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
13 years ago
Michael Niedermayer
46c7842994
ituh263dec: Implement enough of Annex O (scalability) to fix a FPE.
...
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Alex Converse
3574a85ce5
Replace computations of remaining bits with calls to get_bits_left().
13 years ago
Michael Niedermayer
e93d911e48
h263: fix zygo debug printing overreading.
...
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Martin Storsjö
6c28d65754
rv: Add ff_ prefix to nonstatic symbols
...
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Martin Storsjö
6f13a371ec
mpeg4: Add ff_ prefixes to nonstatic symbols
...
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Martin Storsjö
e96b4a53df
vlc/rl: Add ff_ prefix to the nonstatic symbols
...
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Martin Storsjö
ddce8953a5
h263: Add ff_ prefix to nonstatic symbols
...
Signed-off-by: Martin Storsjö <martin@martin.st>
13 years ago
Michael Niedermayer
8e7776036b
h263: disable slow checked reader, overreads are not possible in
...
ffmpegs h263 decoder
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
376ee20614
h263dec: restore error concealment functionality after merge
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Diego Biurrun
58c42af722
doxygen: misc consistency, spelling and wording fixes
13 years ago
Dustin Brody
5b22d6e132
lavc: convert error_recognition to err_recognition.
...
Signed-off-by: Anton Khirnov <anton@khirnov.net>
13 years ago
Mans Rullgard
aa498fef0d
mpeg124: use sign_extend() function
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
13 years ago
Diego Biurrun
657ccb5ac7
Eliminate FF_COMMON_FRAME macro.
...
FF_COMMON_FRAME holds the contents of the AVFrame structure and is also copied
to struct Picture. Replace by an embedded AVFrame structure in struct Picture.
14 years ago
Mans Rullgard
0ebcdf5cda
Do not include mathematics.h in avutil.h
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Mans Rullgard
e65ab9d94f
Remove unused variables
14 years ago
Stefano Sabatini
ce5e49b0c2
replace deprecated FF_*_TYPE symbols with AV_PICTURE_TYPE_*
14 years ago