Commits · 6dfb0d38019be0167aa95d4886091f0314150790 · videolan / ffmpeg-mt

18 Apr, 2009 4 commits

Change nsvf_index_data to nsvs_file_offset for increased clarity. · 6dfb0d38
jai_menon authored Apr 18, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18603 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
6dfb0d38

mru authored Apr 18, 2009

PPC is normally big endian but has special little endian load/store
instructions. Using these avoids a separate byteswap. This makes the
vorbis decoder about 5% faster. Not much else uses little-endian
read/write extensively.

GCC generates horrible PPC code for the default AV_[RW]B64 (which uses
a packed struct), so we override it with a plain pointer cast.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18602 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

5d43440a

ARM asm for AV_RN*() · b2ff3961

mru authored Apr 18, 2009

ARMv6 and later support unaligned loads and stores for single
word/halfword but not double/multiple. GCC is ignorant of this and
will always use bytewise accesses for unaligned data. Casting to an
int32_t pointer is dangerous since a load/store double or multiple
instruction might be used (this happens with some code in FFmpeg).
Implementing the AV_[RW]* macros with inline asm using only supported
instructions gives fast and safe unaligned accesses. ARM RVCT does
the right thing with generic code.

This gives an overall speedup of up to 10%.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18601 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

b2ff3961

Reorganise intreadwrite.h · 9e809645

mru authored Apr 18, 2009

This changes intreadwrite.h to support per-arch implementations of the
various macros allowing us to take advantage of special instructions
or other properties the compiler does not know about.

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18600 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

9e809645

17 Apr, 2009 36 commits

Use sign_extend function instead of reimplementing it. · 636bf329

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18599 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

636bf329

Remove a useless "& 0xF" · 208e45c9

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18598 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

208e45c9

Use / and % operators instead of reimplementing them with a loop. · 7d236ede
reimar authored Apr 17, 2009
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git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18597 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
7d236ede
Change buffer check to avoid an unlikely pointer arithmetic overflow. · f25f00f3
reimar authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18596 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
f25f00f3

Simplify xan_huffman_decode by using get_bits · cf567db6

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18595 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

cf567db6

Fix indention, patch by Lars Täuber. · eef31390

michael authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18594 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

eef31390

Simplify ipvideo_decode_opcodes by using get_bits, this might be slower · 6d40ab23

reimar authored Apr 17, 2009

but is not performance-critical anyway.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18593 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

6d40ab23

Remove unused code_counts array from interplavideo.c. · 0e2e5b09

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18592 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

0e2e5b09

Introduce codec id for ALS and associate it with corresponding · 3769c2da

jai_menon authored Apr 17, 2009

AudioObjectType. Also bump libavcodec minor version.


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18591 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

3769c2da

Cosmetics to improve xan_unpack readability · 68e0658a

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18590 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

68e0658a

Fix buffer size check for xan_unpack which was broken by r18586 · 1bb5eb4a
reimar authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18589 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
1bb5eb4a

Some more simplifications of xan_unpack · 267a5b13

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18588 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

267a5b13

Reindent xan_unpack code · cd93af54

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18587 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

cd93af54

Avoid some code duplication in xan_unpack · 583dbb36

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18586 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

583dbb36

Remove useless assignments, at least one found by CSA. · c0d5b78c

michael authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18585 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

c0d5b78c

Increase buffer padding to avoid most space checks in xan_unpack · ce056eb2
reimar authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18584 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
ce056eb2
Remove useless init from ff_mpeg4_set_direct_mv() found by CSA. · 4040b514
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18583 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
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4040b514
Remove a useless assignment in img_get_alpha_info() found by CSA. · 7c6c84fc
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18582 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
7c6c84fc
Remove redundant assignment in av_picture_copy() found by CSA. · aadbf6e8
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18581 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
aadbf6e8
Remove useless init from aiff_read_header() found by CSA. · 6f7042f6
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18580 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
6f7042f6
Remove several useless writes to variables, found by CSA. · f55438f3
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18579 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
f55438f3

Remove useless += from ff_imdct_half_c() found by CSA. · 79f2dfed

michael authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18578 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

79f2dfed

Remove 2 ++ from check_pes() that are useless, found by CSA. · 4481b42a
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18577 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
4481b42a
Change buffer size checks to avoid the very unlikely overflow case. · ec00c411
reimar authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18576 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
ec00c411
Remove unused variable from h261_encode_block() found by CSA. · 7560101b
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18575 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
7560101b

Remove a pointless right-shift in xan decoder. · 6a7867c2

reimar authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18574 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

6a7867c2

Remove 2 useless assignments from ff_rate_control_init() found by CSA. · 867ed320
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18573 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
867ed320

Replace bytecopy with the equivalent but faster av_memcpy_backptr. · 5f7576b3

reimar authored Apr 17, 2009

Ca. 10% faster xan_unpack on x86_64 decoding of SC_32-part.MVE


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18572 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

5f7576b3

Remove unused variable from flv_read_metabody() found by CSA. · 5162e5b9
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18571 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
5162e5b9
Remove unused variable from slice_buffer_release() found by CSA. · d1673c1e
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18570 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
d1673c1e

Use memcpy instead of the very inefficient bytecopy where both are correct · 2293539e

reimar authored Apr 17, 2009

(i.e. no overlap of src and dst is possible).


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18569 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

2293539e

Remove unused variable from wma_decode_block() found by CSA. · 8909dbb5
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18568 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
8909dbb5
Remove unneeded assignment from av_encode() found by CSA. · e485aee8
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18567 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
e485aee8

Remove unused variable from print_report() found by CSA. · 59d3b20b

michael authored Apr 17, 2009


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18566 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

59d3b20b

Remove nonsensical assignment from asf_read_seek() found by CSA. · bd7eeb4b
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18565 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
bd7eeb4b
Remove redundant assignment from avcodec_get_pix_fmt_loss() found by CSA. · 9245bd35
michael authored Apr 17, 2009
```
git-svn-id: file:///var/local/repositories/ffmpeg/trunk@18564 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
```
9245bd35