This reverts commit ad733089.

breaks with --disable-yasm
revert requested by: Christophe Gisquet <christophe.gisquet@gmail.com>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'e0d01dc7':
  smoothstream: check malloc calls
Merged-by: Michael Niedermayer <michaelni@gmx.at>

According to doc/errno.txt EOVERFLOW is not available everywhere. The
use of -1 is consistent with avcodec/srtenc.c.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Based off the srt encoder. The following features are unimplemented:

- fonts, colors, sizes
- alignment and positioning

The rest works well. For example, use ffmpeg to convert subtitles into the .vtt format:

  ffmpeg -i input.srt output.vtt
Signed-off-by: Aman Gupta <ffmpeg@tmm1.net>
Signed-off-by: Clément Bœsch <u@pkh.me>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Some applications used a negative value as default for "not set"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Loading pb_1 rather than pw_8192 was benchmarked to be more efficient.
Loading of the 2 yields no advantage. Loading of one saves ~11 cycles.

decicycles count:
put8:  3223(mmx)    -> 2387
avg8:  2863(mmxext) -> 2125
put16: 4356(sse2)   -> 3553
avg16: 4481(sse2)   -> 3513
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '8692e628':
  rdt: check malloc calls
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes NULL dereference in vobsub_read_packet() on vobsub->q[i]->subs.

Fixes ticket #3669.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is obviously equivalent to the avg version, without the avg.

3223(mmx) -> 2006(sse2)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Those are mostly used in codecs older than H.264, eg MPEG-2.

put16 versions:
      mmx  mmx2  sse2
x2:  1888  1185   552
y2:  1778  1092   510

avg16 xy2: 3509(mmx2) -> 2169(sse2)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

I never implemented the plans I had for the site, and I prefer to work
in other areas of the project.
Signed-off-by: Lou Logan <lou@lrcd.com>

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

with -f lavfi -i testsrc=s=hd1080 as source:
  rotate=90*PI/180  vs transpose=clock:   42fps -> 64fps
  rotate=180*PI/180 vs vflip,hflip:       75fps -> 77fps
  rotate=270*PI/180 vs transpose=cclock:  43fps -> 63fps

Should fix fate failures in msvc x86_64
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The inline loop was incrementing and using the value of %%i
the wrong way.

Disassembly of ff_vector_clip_int32_sse2 before and after
this patch:

    movdqa (%rdx),%xmm0      |  movdqa (%rdx),%xmm0
    movdqa 0x10(%rdx),%xmm1  |  movdqa 0x10(%rdx),%xmm1
    movdqa 0x20(%rdx),%xmm2  |  movdqa 0x20(%rdx),%xmm2
    movdqa 0x30(%rdx),%xmm3  |  movdqa 0x30(%rdx),%xmm3
[...]                        |
    movdqa %xmm0,(%rcx)      |  movdqa %xmm0,(%rcx)
    movdqa %xmm1,0x10(%rcx)  |  movdqa %xmm1,0x10(%rcx)
    movdqa %xmm2,0x20(%rcx)  |  movdqa %xmm2,0x20(%rcx)
    movdqa %xmm3,0x30(%rcx)  |  movdqa %xmm3,0x30(%rcx)
    movdqa (%rdx),%xmm0      |  movdqa 0x40(%rdx),%xmm0
    movdqa 0x20(%rdx),%xmm1  |  movdqa 0x50(%rdx),%xmm1
    movdqa 0x40(%rdx),%xmm2  |  movdqa 0x60(%rdx),%xmm2
    movdqa 0x60(%rdx),%xmm3  |  movdqa 0x70(%rdx),%xmm3
[...]                        |
    movdqa %xmm0,(%rcx)      |  movdqa %xmm0,0x40(%rcx)
    movdqa %xmm1,0x20(%rcx)  |  movdqa %xmm1,0x50(%rcx)
    movdqa %xmm2,0x40(%rcx)  |  movdqa %xmm2,0x60(%rcx)
    movdqa %xmm3,0x60(%rcx)  |  movdqa %xmm3,0x70(%rcx)
    add    $0x80,%rdx        |  add    $0x80,%rdx
    add    $0x80,%rcx        |  add    $0x80,%rcx

Other versions were unaffected.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Found-by: nevcairiel
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>