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147 Commits

Author SHA1 Message Date
Andreas Rheinhardt
9f38fac053 avcodec/h261dec: Make VLC smaller 
The VLC for the macroblock address increment uses nine bits;
yet there is no code with this length: All codes are either shorter or
longer. So one can make the table smaller without changing the amount of
codes that need more than one round of parsing.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-27 11:53:22 +01:00
Andreas Rheinhardt
41826f84bb avcodec/h261dec: Reindentation 
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:52:49 +01:00
Andreas Rheinhardt
7afc6d71a0 avcodec/h261dec: Make decoder init-threadsafe 
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:52:24 +01:00
Andreas Rheinhardt
ed913fcb59 avcodec/h261dec: Don't initialize unused part of RLTable 
The H.261 decoder only uses an RLTable's VLC table, yet it also
initializes its index_run, max_level and max_run. This commit stops
doing so; it will also simplify making this decoder init-threadsafe,
as the H.261 decoder and encoder now initialize disjoint parts of their
common RLTable.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:52:05 +01:00
Andreas Rheinhardt
b9071a70fc avcodec/h261dec: Don't initialize unused VLCs 
The H.261 decoder uses only the very first VLC of ff_h261_rl_tcoeff,
so only initialize this one. Saves 68448B from the .bss segment; in case
the decoder is actually used, this amount of memory is saved.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-01-25 14:51:53 +01:00
Andreas Rheinhardt
8af82be946 avcodec/mpegvideo: Merge ff_mpv_decode_defaults into ff_mpv_decode_init 
These two are always called directly after each other (with the
exception of the calls in mpeg_decode_init() where some irrelevant
modifications of the avctx (which could just as well be done before
ff_mpv_decode_defaults(), because it doesn't have a pointer to the
AVCodecContext at all and therefore can't see these modifications at
all) are performed in between), so merge ff_mpv_decode_defaults() in
ff_mpv_decode_init().

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-31 12:00:15 +01:00
Andreas Rheinhardt
ebbdb928e8 avcodec/h261dec: Don't use too big max_depth in get_vlc2() 
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2020-12-31 11:56:18 +01:00
Limin Wang
4b2863ff01 avcodec: add FF_CODEC_CAP_INIT_CLEANUP for all codecs which use ff_mpv_common_init() 
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
 2020-06-13 06:59:18 +08:00
Michael Niedermayer
f670c13f13 avcodec: Rename ff_mpv_decode_mb() to ff_mpv_reconstruct_mb 
The new name more accuratly describes what the function does

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
 2017-06-19 17:54:40 +02:00
Clément Bœsch
8ef57a0d61 Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb' 
* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb':
  cosmetics: Fix spelling mistakes

Merged-by: Clément Bœsch <u@pkh.me>
 2016-06-21 21:55:34 +02:00
Vittorio Giovara
41ed7ab45f cosmetics: Fix spelling mistakes 
Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2016-05-04 18:16:21 +02:00
Michael Niedermayer
444e9874a7 Merge commit 'def97856de6021965db86c25a732d78689bd6bb0' 
* commit 'def97856de6021965db86c25a732d78689bd6bb0':
  lavc: AV-prefix all codec capabilities

Conflicts:
	cmdutils.c
	ffmpeg.c
	ffplay.c
	libavcodec/8svx.c
	libavcodec/aacenc.c
	libavcodec/ac3dec.c
	libavcodec/adpcm.c
	libavcodec/alac.c
	libavcodec/atrac3plusdec.c
	libavcodec/bink.c
	libavcodec/dnxhddec.c
	libavcodec/dvdec.c
	libavcodec/dvenc.c
	libavcodec/ffv1dec.c
	libavcodec/ffv1enc.c
	libavcodec/fic.c
	libavcodec/flacdec.c
	libavcodec/flacenc.c
	libavcodec/flvdec.c
	libavcodec/fraps.c
	libavcodec/frwu.c
	libavcodec/gifdec.c
	libavcodec/h261dec.c
	libavcodec/hevc.c
	libavcodec/iff.c
	libavcodec/imc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libvo-aacenc.c
	libavcodec/libvorbisenc.c
	libavcodec/libvpxdec.c
	libavcodec/libvpxenc.c
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegaudiodec_float.c
	libavcodec/msmpeg4dec.c
	libavcodec/mxpegdec.c
	libavcodec/nvenc_h264.c
	libavcodec/nvenc_hevc.c
	libavcodec/pngdec.c
	libavcodec/qpeg.c
	libavcodec/ra288.c
	libavcodec/rv10.c
	libavcodec/s302m.c
	libavcodec/sp5xdec.c
	libavcodec/takdec.c
	libavcodec/tiff.c
	libavcodec/tta.c
	libavcodec/utils.c
	libavcodec/v210dec.c
	libavcodec/vp6.c
	libavcodec/vp9.c
	libavcodec/wavpack.c
	libavcodec/yop.c

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
 2015-07-27 22:50:18 +02:00
Vittorio Giovara
def97856de lavc: AV-prefix all codec capabilities 
Express bitfields more simply.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2015-07-27 15:24:58 +01:00
Michael Niedermayer
d9b264bc73 Merge commit '848e86f74d3e6e87fa592ee8ba8c184cc5fd9a42' 
* commit '848e86f74d3e6e87fa592ee8ba8c184cc5fd9a42':
  mpegvideo: Drop flags and flags2

Conflicts:
	libavcodec/mpeg12dec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/ratecontrol.c
	libavcodec/vc1_block.c
	libavcodec/vc1_loopfilter.c
	libavcodec/vc1_mc.c
	libavcodec/vc1dec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-05-22 20:24:41 +02:00
Vittorio Giovara
848e86f74d mpegvideo: Drop flags and flags2 
They are just duplicates of AVCodecContext members so use those instead.
 2015-05-22 15:34:39 +01:00
Michael Niedermayer
8f7b022c8c Merge commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25' 
* commit '6a85dfc830f51f1f5c2d36d4182d265c1ea3ba25':
  lavc: Replace av_dlog and tprintf with internal macros

Conflicts:
	libavcodec/aacdec.c
	libavcodec/audio_frame_queue.c
	libavcodec/bitstream.c
	libavcodec/dcadec.c
	libavcodec/dnxhddec.c
	libavcodec/dvbsubdec.c
	libavcodec/dvdec.c
	libavcodec/dvdsubdec.c
	libavcodec/get_bits.h
	libavcodec/gifdec.c
	libavcodec/h264.h
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_loopfilter.c
	libavcodec/h264_refs.c
	libavcodec/imc.c
	libavcodec/interplayvideo.c
	libavcodec/jpeglsdec.c
	libavcodec/libopencore-amr.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12dec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_parser.c
	libavcodec/pngdec.c
	libavcodec/ratecontrol.c
	libavcodec/rv10.c
	libavcodec/svq1dec.c
	libavcodec/vqavideo.c
	libavcodec/wmadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2015-04-20 04:10:10 +02:00
Vittorio Giovara
6a85dfc830 lavc: Replace av_dlog and tprintf with internal macros 2015-04-19 12:41:59 +01:00
Michael Niedermayer
61aca123fb avcodec/h261dec: Fix exported MVs for skipped MBs 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2015-02-01 18:48:23 +01:00
Michael Niedermayer
3bb465245f h261dec: Fix context initialization sequence 
ff_mpv_common_init sets s->context_initialized.

This fixes decoding of h261 in the cases where the demuxer
hasn't already set the frame size.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
 2014-12-18 23:10:24 +02:00
Michael Niedermayer
17085a0251 Merge commit '7ea1b3472a61de4aa4d41b571e99418e4997ad41' 
* commit '7ea1b3472a61de4aa4d41b571e99418e4997ad41':
  lavc: deprecate the use of AVCodecContext.time_base for decoding

Conflicts:
	libavcodec/avcodec.h
	libavcodec/h264.c
	libavcodec/mpegvideo_parser.c
	libavcodec/utils.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-10-15 15:49:31 +02:00
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.
 2014-10-15 06:37:43 +00:00
Michael Niedermayer
4dee4a4470 avcodec/mpegvideo: Factor ff_mpv_decode_init() out 
Reviewed-by: Benoit Fouet <benoit.fouet@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-09-05 20:48:06 +02:00
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>
 2014-09-01 19:41:20 +02:00
Reimar Döffinger
36c0043344 h261dec, ituh263dec: ensure CLOSE_READER is done on error paths, too. 
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2014-09-01 19:41:20 +02:00
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>
 2014-09-01 19:41:20 +02:00
Reimar Döffinger
c0d32686dd h261dec: Optimize new RL_VLC based decoding. 
Together with the switch to RL_VLC this results in about
10% speedup for this inner loop.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
 2014-08-31 20:13:51 +02:00
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>
 2014-08-31 20:09:54 +02:00
Michael Niedermayer
c1df467d73 Merge commit '835f798c7d20bca89eb4f3593846251ad0d84e4b' 
* commit '835f798c7d20bca89eb4f3593846251ad0d84e4b':
  mpegvideo: cosmetics: Lowercase ugly uppercase MPV_ function name prefixes

Conflicts:
	libavcodec/h261dec.c
	libavcodec/intrax8.c
	libavcodec/mjpegenc.c
	libavcodec/mpeg12dec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpeg4videoenc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/rv10.c
	libavcodec/x86/mpegvideoenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-15 20:11:56 +02:00
Diego Biurrun
835f798c7d mpegvideo: cosmetics: Lowercase ugly uppercase MPV_ function name prefixes 2014-08-15 01:26:33 -07:00
Michael Niedermayer
6c1ee1a114 avcodec/h261dec: Fix context initialization sequence 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-15 02:53:48 +02:00
Michael Niedermayer
595c63357c Merge commit '552bc42df48784ae3ce0d499ece5b33f3cc7576a' 
* commit '552bc42df48784ae3ce0d499ece5b33f3cc7576a':
  h261dec: Fix order of initialization

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-15 02:41:47 +02:00
Michael Niedermayer
2fd87a3d78 Merge commit '998c9f15d1ca8c7489775ebcca51623b915988f1' 
* commit '998c9f15d1ca8c7489775ebcca51623b915988f1':
  idct: remove call to ff_idctdsp_init from ff_MPV_common_init

Conflicts:
	libavcodec/dnxhdenc.c
	libavcodec/h263dec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-08-15 02:25:14 +02:00
John Stebbins
552bc42df4 h261dec: Fix order of initialization 
ff_MPV_common_init requires the frame dimensions which get parsed in
h261_decode_picture_header.
 2014-08-14 07:58:50 -07:00
John Stebbins
998c9f15d1 idct: remove call to ff_idctdsp_init from ff_MPV_common_init 
One step in untangling the mpegvideo code and fixing some problems in
the order that initialization is being done in h263dec and h261dec.
 2014-08-14 07:58:49 -07:00
Michael Niedermayer
56afbe8dbc Merge commit '7b9ef8d701c319c26f7d0664fe977e176764c74e' 
* commit '7b9ef8d701c319c26f7d0664fe977e176764c74e':
  mpeg: Split error resilience bits off into a separate file

Conflicts:
	configure
	libavcodec/Makefile
	libavcodec/mpegvideo.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-23 03:48:30 +02:00
Diego Biurrun
7b9ef8d701 mpeg: Split error resilience bits off into a separate file 2014-06-22 17:36:37 -07:00
Michael Niedermayer
2b05db4f81 Merge commit 'e74433a8e6fc00c8dbde293c97a3e45384c2c1d9' 
* commit 'e74433a8e6fc00c8dbde293c97a3e45384c2c1d9':
  dsputil: Split clear_block*/fill_block* off into a separate context

Conflicts:
	configure
	libavcodec/asvdec.c
	libavcodec/dnxhddec.c
	libavcodec/dnxhdenc.c
	libavcodec/dsputil.h
	libavcodec/eamad.c
	libavcodec/intrax8.c
	libavcodec/mjpegdec.c
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/vc1dec.c
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-06-19 04:54:38 +02:00
Diego Biurrun
e74433a8e6 dsputil: Split clear_block*/fill_block* off into a separate context 2014-06-18 14:07:23 -07:00
Michael Niedermayer
59a53842d3 Merge remote-tracking branch 'qatar/master' 
* qatar/master:
  mpegvideo: operate with pointers to AVFrames instead of whole structs

Conflicts:
	libavcodec/h261dec.c
	libavcodec/h263dec.c
	libavcodec/intrax8.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/mpegvideo_xvmc.c
	libavcodec/msmpeg4.c
	libavcodec/ratecontrol.c
	libavcodec/vaapi.c
	libavcodec/vc1dec.c
	libavcodec/vdpau_vc1.c

See: fc567ac49e
Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-04-09 15:18:46 +02:00
wm4
f6774f905f mpegvideo: operate with pointers to AVFrames instead of whole structs 
The most interesting parts are initialization in ff_MPV_common_init() and
uninitialization in ff_MPV_common_end().

ff_mpeg_unref_picture and ff_thread_release_buffer have additional NULL
checks for Picture.f, because these functions can be called on
uninitialized or partially initialized Pictures.

NULL pointer checks are added to ff_thread_release_buffer() stub function.

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
 2014-04-09 02:12:19 +02:00
Michael Niedermayer
c05065aac0 avcodec/h261: move b_stride/b_xy under the if() where they are used 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-26 04:22:39 +01:00
Michael Niedermayer
4090d5baa8 avcodec/h261dec: fix motion vector vissualization 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-26 01:12:03 +01:00
Michael Niedermayer
9517900bef Merge commit 'e0c16e4e3259cf50b5bac4c23bb6e517f397c74b' 
* commit 'e0c16e4e3259cf50b5bac4c23bb6e517f397c74b':
  mpegvideo: move mpegvideo formats-related defines to mpegutils.h

Conflicts:
	libavcodec/h264_cabac.c
	libavcodec/h264_cavlc.c
	libavcodec/h264_mvpred.h
	libavcodec/svq1enc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2014-03-17 12:36:48 +01:00
Vittorio Giovara
e0c16e4e32 mpegvideo: move mpegvideo formats-related defines to mpegutils.h 2014-03-16 23:04:41 +01:00
Michael Niedermayer
0d9f2f5c47 Merge commit '66499f34b56fc6a9fdef25543bd9d576fc787895' 
* commit '66499f34b56fc6a9fdef25543bd9d576fc787895':
  mpegvideo: do not set current_picture_ptr in decoders

Conflicts:
	libavcodec/mss2.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-12-06 04:09:47 +01:00
Anton Khirnov
66499f34b5 mpegvideo: do not set current_picture_ptr in decoders 
This code was originally added in
5f1948111a to h263 to set decoded frame
pts to some random numbers (removed in
a1c5cc429d) and then cargo culted to other
decoders.

The code is left in h263dec for now, since some part of the decoder
(apparently OBMC) relies on the specific previous frame to be reused.
 2013-12-05 13:28:05 +01:00
Michael Niedermayer
e6b9d71ad9 Merge commit '3b086317277e3f3b61c0343930d8e2570b278bd6' 
* commit '3b086317277e3f3b61c0343930d8e2570b278bd6':
  h26[13]dec: stop using deprecated avcodec_set_dimensions
  gifdec: stop using deprecated avcodec_set_dimensions
  g2meet: stop using deprecated avcodec_set_dimensions

Conflicts:
	libavcodec/gifdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2013-11-01 14:54:40 +01:00
Anton Khirnov
3b08631727 h26[13]dec: stop using deprecated avcodec_set_dimensions 2013-10-31 20:14:15 +01:00
Michael Niedermayer
711e981276 avcodec/h261dec: Use skip_1stop_8data_bits() 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-30 18:28:00 +01:00
Michael Niedermayer
719dbe86ea avcodec/h261dec: make while get_bits loop more robust by checking bits left 
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2013-10-30 14:45:39 +01:00