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7 commits

Author SHA1 Message Date
Andreas Rheinhardt
764e021946 avcodec/snowdata: Add explicit alignment for obmc tables 
This is in preparation for adding SSSE3 assembly.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2026-04-13 12:46:24 +02:00
Andreas Rheinhardt
eed0830a0c avcodec/snowdata: Don't use 8 bits for six bits data 
This has been done in 561a18d3ba
in order to avoid shifts, yet this rationale no longer applies
since d593e32983. So shift them back;
this is in preparation for using these coefficients together with
pmaddubsw.

Hint: 561a18d3ba also added a block
guarded by "if(LOG2_OBMC_MAX == 8". I changed the condition to remove
this check (i.e. kept the block) which should not change the output
at all. Yet all FATE tests pass if the block is completely
removed. I don't know if this block is necessary at all.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
 2026-04-13 12:46:24 +02:00
Andreas Rheinhardt
a7f4abbc62 avcodec/snow: Hardcode table to save space 
The size of ff_qexp is only 32 bytes, but the code to generate it at
runtime takes 47 bytes (GCC 9.3, x64, -O3 in an av_cold function); so
just hardcode it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
 2021-05-02 05:14:42 +02:00
Michael Niedermayer
6cb2085278 Merge remote-tracking branch 'qatar/master' 
* qatar/master: (27 commits)
  ppc: Add ff_ prefix to nonstatic symbols
  sh4: Add ff_ prefix to nonstatic symbols
  mpegvideo: Add ff_ prefix to nonstatic functions
  rtjpeg: Add ff_ prefix to nonstatic symbols
  rv: Add ff_ prefix to nonstatic symbols
  vp56: Add ff_ prefix to nonstatic symbols
  vorbis: Add ff_ prefix to nonstatic symbols
  msmpeg4: Add ff_ prefix to nonstatic symbols
  vc1: Add ff_ prefix to nonstatic symbols
  msmpeg4: Add ff_ prefixes to nonstatic symbols
  snow: Add ff_ prefix to nonstatic symbols
  mpeg12: Add ff_ prefix to nonstatic symbols
  mpeg4: Add ff_ prefixes to nonstatic symbols
  lagarith: Add ff_ prefix to lag_rac_init
  libavcodec: Add ff_ prefix to j_rev_dct*
  dsputil: Add ff_ prefix to inv_zigzag_direct16
  libavcodec: Prefix fdct_ifast, fdct_ifast248
  dsputil: Add ff_ prefix to the dsputil*_init* functions
  libavcodec: Add ff_ prefix to some nonstatic symbols
  vlc/rl: Add ff_ prefix to the nonstatic symbols
  ...

Conflicts:
	libavcodec/Makefile
	libavcodec/allcodecs.c
	libavcodec/dnxhddec.c
	libavcodec/ffv1.c
	libavcodec/h263.h
	libavcodec/h263dec.c
	libavcodec/h264.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c
	libavcodec/nuv.c
	libavcodec/ppc/dsputil_ppc.c
	libavcodec/proresdsp.c
	libavcodec/svq3.c
	libavcodec/version.h
	libavformat/dv.h
	libavformat/dvenc.c
	libavformat/matroskadec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
 2012-02-16 01:34:37 +01:00
Martin Storsjö
35e02a3d0e snow: Add ff_ prefix to nonstatic symbols 
This allows getting rid of a hack for conflicting symbol/define
names.

Signed-off-by: Martin Storsjö <martin@martin.st>
 2012-02-15 22:06:58 +02:00
Michael Niedermayer
4e2b0c5785 snowdata: Fix project name, this file has not been developed in libav 
or by any libav developers.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2012-02-01 04:43:06 +01:00
Luca Barbato
7f1b427018 snow: split snow in snowdec and snowenc 
The common non inlined code goes in snow.c, the common inlined code in
snow.h, tables move in snowdata.h (included only by snow.c)
 2011-11-24 21:35:47 +01:00