Commit Graph

1402 Commits

Author SHA1 Message Date
James Zern
153f94e8b5 fix windows build
broken since:
ad25032 Merge "multi-threaded alpha encoding for lossy"

this produced an error due to an empty VP8TBuffer struct.

Change-Id: I640809d07d20092c1d660e2b59b58a62a12e4371
2013-03-08 15:50:04 -08:00
pascal massimino
847b49243e Merge "vwebp: use magenta for 'i'nfo display" 2013-03-08 05:17:57 -08:00
pascal massimino
25ea46bdee Merge "vwebp: add keyboard shortcuts to help output" 2013-03-08 05:15:17 -08:00
James Zern
bea7ccaffd vwebp: use magenta for 'i'nfo display
replaces black

Change-Id: I8ca52c187c7b4b890378dec2a526e51c7819f7e1
2013-03-07 19:42:41 -08:00
James Zern
8fab161a3f webpmux: correct -frame param order in help output
params were reordered to +duration+x offset+...

Change-Id: I99e8a70c8a645552238294ab82c3f7ffe01e70bd
2013-03-07 19:15:37 -08:00
James Zern
03cc23d6f9 vwebp: add keyboard shortcuts to help output
Change-Id: Ida94b3f99115ddeb6b6eec1411918f99e964ed91
2013-03-07 19:13:00 -08:00
Urvang Joshi
068eba8d58 Demux: Add option to get frame count using GetI()
Also tweak the code for single image and fragmented image cases, so that
dmux->num_frames_ is always correct.

Change-Id: I31e6904222e4d96a54a0d8c8aa73d43b7a9094e7
2013-03-06 13:14:05 -08:00
Urvang Joshi
988b8f56b3 WebPGetFeatures() out of if condition for clarity.
Also, some comment tweaks in decode.h

Change-Id: I9d4e80f2ffdc51d35bd3215486e26448bddd143b
2013-03-05 18:05:12 -08:00
James Zern
6933d91057 Merge "gif2webp: Be lenient about background color index." 2013-03-05 17:04:16 -08:00
James Zern
4d0f7c5543 Merge "WebPGetFeatures() behavior change:" 2013-03-05 17:03:20 -08:00
Urvang Joshi
fdeeb01dc6 gif2webp: Be lenient about background color index.
Change-Id: I4440cffff4e8cefb3b0327a9b4925e05a7bbfc50
2013-03-05 13:41:55 -08:00
skal
ad2503203a Merge "multi-threaded alpha encoding for lossy" 2013-03-01 16:00:10 -08:00
skal
4e32d3e1e7 Merge "fix compilation of token.c" 2013-03-01 01:07:56 -08:00
skal
f817930a55 multi-threaded alpha encoding for lossy
new option: 'cwebp -mt ...'
new config flag: config.thread_level
(allowed thread_level are 0 or 1 for now. Maybe more later...)
If -mt is activated (and WEBP_USE_THREAD is used for compile), the alpha-compression
will be done in parallel to RGB coding for lossy. Can save quite a bit of latency...
Has no effect for lossless encoding.

Change-Id: I769d0bf90e7380cf99344ad62cd77277f4df5a46
2013-03-01 10:04:08 +01:00
skal
88050351f4 fix compilation of token.c
(TOKEN_BUFFER still disabled)
also: made VP8TBufferClear() always visible

Change-Id: Iff353fe70b2f3c5b0ab4ef7f143e1d65b0ab2b0d
2013-03-01 09:58:14 +01:00
skal
fc816219e1 code using the actual values for num_parts_, not the ones from config
Change-Id: Icb961c66fe62cb703a12c5ff8a9aa4fc884bac1c
2013-03-01 09:48:33 +01:00
skal
72655350ea Merge "move the config check from .c to .h" 2013-02-28 12:25:53 -08:00
skal
dd9e76f7b4 move the config check from .c to .h
+ minor doc cosmetics

Change-Id: I351ce63f4463fd1c1546f58697440ad01eac860c
2013-02-28 21:23:39 +01:00
Urvang Joshi
956b217a8b WebPGetFeatures() behavior change:
It should return VP8_STATUS_NOT_ENOUGH_DATA when it doesn't have enough
data.

Change-Id: I5acff04f9ba51dab150dc6d137c5ad00ea61c64a
2013-02-27 15:27:43 -08:00
Urvang Joshi
df02e4ce93 WebPDemuxGetI behavior change:
It now returns ALPHA_FLAG for lossless images with alpha, that don't
have a VP8X chunk.

This is consistent with similar methods WebPMuxGetFeatures() and
WebPGetFeatures().

Change-Id: Ia3a4ca8f3e0f102f478bd33e0727ca5be98593df
2013-02-27 11:49:26 -08:00
Pascal Massimino
633c004db1 Merge "rebalance method tools (-m) for methods [0..4]" 2013-02-27 10:20:27 -08:00
Pascal Massimino
58ca6f65b7 rebalance method tools (-m) for methods [0..4]
(methods 5 and 6 are still untouched).

Methods #0 and #1 got much faster
Method #2 gets vastly improved in quality
Method #3 is noticeably faster for little lower quality
Method #4 (default) is 10-20% faster for comparable quality

+ update the internal doc about the methods' tools.

Example of speed difference:

Time to encode picture:
Method | Before | After
-m 0   | 1.272s | 0.517s
-m 1   | 1.295s | 0.623s
-m 2   | 2.217s | 0.834s
-m 3   | 2.816s | 2.243s
-m 4   | 3.235s | 3.014s
-m 5   | 3.668s | 3.654s
-m 6   | 8.296s | 8.235s

Change-Id: Ic41fda5de65066b3a6586cb8ae1ebb0206d47fe0
2013-02-27 02:19:20 -08:00
Pascal Massimino
7648c3ccb8 Merge "describe rd-opt levels introduce VP8RDLevel enum" 2013-02-27 01:45:14 -08:00
pascal massimino
67fb1003bf Merge "autoconf: enable silent-rules by default" 2013-02-27 01:43:42 -08:00
Urvang Joshi
a5042a3240 GetVersion() methods for mux and demux
Also use the same in example binaries.

Change-Id: Id4bb4c4231a6b8fe9ed4370a6f46567c52a04a17
2013-02-26 14:22:06 -08:00
Pascal Massimino
5189957e07 describe rd-opt levels introduce VP8RDLevel enum
makes things somehow clearer compared to using magic constants

Change-Id: I9115cee71252511f722806427ee8a97f1a1cd95f
2013-02-26 02:20:59 -08:00
James Zern
4e094ace8c autoconf: enable silent-rules by default
simplify macro check: use m4_ifdef rather than
m4_define_default/AM_SILENT_RULES

Change-Id: I1746aaa6b22bd6a8c4804e742e1071165094b150
2013-02-25 16:11:14 -08:00
skal
b7eaa85d6a inline VP8LFastLog2() and VP8LFastSLog2 for small values
larger values are still dealt with in the .cc

~5% faster encoding
Output size is slightly different (variably), because of
different floating-point calculation ordering.

Change-Id: I6ede18b09c753997cf78aa1199a807d9ddb5d4b4
2013-02-25 22:46:52 +01:00
skal
5cf7792e40 split quant_levels.c into decoder and encoder version
-> split libraries further into decoder / encoder
-> add libwebpdecoder.a in Makefile.unix
-> make dwebp link against libwebpdecoder.a in Makefile.unix

also: in makefile.unix, pass EXTRA_FLAGS to LDFLAGS too
(otherwise, -m32 wouldn't work, e.g.)

Change-Id: Ief3da02a729dd86bbaf949ed048836716941657f
2013-02-24 21:40:39 +01:00
pascal massimino
e5d3ffe275 Merge "Update code example in README.mux" 2013-02-23 00:52:48 -08:00
Urvang Joshi
ac5a9156b1 Update code example in README.mux
As per changes in code example in demux.h

Change-Id: Idb63e854dc2668ba35517ed9622195a12b6942d7
2013-02-22 15:13:10 -08:00
Urvang Joshi
38a91e990b Add example code snippet for demux API
Change-Id: I4e9f32d030dd7f184e1cedf5b37f6f640ba4845e
2013-02-22 14:16:48 -08:00
Urvang Joshi
5f557f3c1b README.mux: add info about Demux API and vwebp
Also use a naming 'extended format' rather than 'container file' to be
consistent with the container specification.

Change-Id: I3b07f95e0244d3534fe17b03f60db22f61e17836
2013-02-21 16:56:48 -08:00
James Zern
c0ba090335 backward_references: avoid signed integer overflow
signed integer overflow behavior is undefined, split PrefixEncode() to
two branches to avoid this.

Change-Id: I6e2761d0d77f0aaceafdc4e07232e089c22beb64
2013-02-20 13:35:00 -08:00
skal
943386db4b disable SSE2 for now
(until proper run-time detection is ready)

Change-Id: I7b8eee52b23fce2f1612ad7d4ed603ffb02620a2
2013-02-20 08:20:47 +01:00
skal
9479fb7d2d lossless encoding speedup
* add SSE2 variant for lossless
* speed-up TransformColor calls using specialized TransformColorBlue/Red
* Fuse the Shannon Entropy calls to compute it for X and X+Y simultaneously.

This latter changes the output size a little bit.

Change-Id: Ie5df94da78bf51a58da859c9099b56340da9ec89
2013-02-20 08:13:12 +01:00
Pascal Massimino
ec2030a8a2 merge two lines together
Change-Id: I6f7935cfdac52d793ba08b1c050160d3417b8eb0
2013-02-19 23:01:10 -08:00
skal
b67956c037 Merge "Remove ReadOneBit() and ReadSymbolUnsafe()" 2013-02-19 15:16:21 -08:00
skal
1667bded67 Remove ReadOneBit() and ReadSymbolUnsafe()
Simplify and re-organize the VP8L bit-reader functions
(e.g.: the 40-bit look-ahead code was helping much)

Speed-up with LBITS=64, on arm7-a:

=> before:
./dwebp_justify_24_neon -v bryce_ll.webp
Time to decode picture: 11.393s
File bryce_ll.webp can be decoded (dimensions: 11158 x 2156).
...

=> after (LBITS=64):	Time to decode picture: 9.953s

making the VP8L bit-reader in 32 bit mode is going to be
harder (because we need to be able to read two symbols
at a time, each with max length 15 bits)

Change-Id: I89746fb103b87b5e2fd40a3208a6fbc584b88297
2013-02-20 00:13:23 +01:00
James Zern
3151669b15 wicdec + dwebp cosmetics: normalize formatting
- drop mixed use of Hungarian notation
- fix some line continuations

Change-Id: I9e6ec5cd6c746eb78048cf3532586fd93cef4ddb
2013-02-15 20:39:45 -08:00
Pascal Massimino
92668da6f2 change default filtering parameters:
* type is now 'strong'
  * strength is now '60'

These help with gradients and blocking

Change-Id: Ie1c8265c557306ef5e9ccefacf43e10946e55370
2013-02-15 01:09:32 -08:00
skal
b7490f8553 introduce WEBP_REFERENCE_IMPLEMENTATION compile option
This flag will make the code use no uint64, no asm, and no fancy
trick, but instead aim at being as simple and straightforward as
possible.
Main use is to help emscripten generate proper JS code.
More code needs to be simplified later.

Also: tune the BITS values to be 24 and make use of WEBP_RIGHT_JUSTIFY
Here are the typical timing for decoding a large image:

        ARM7-a:
        dwebp_justify_32_neon Time to decode picture: 3.280s
        dwebp_justify_24_neon Time to decode picture: 2.640s
        dwebp_justify_16_neon Time to decode picture: 2.723s
        dwebp_justify_8_neon Time to decode picture: 2.802s
        dwebp_justify_32 Time to decode picture: 4.264s
        dwebp_justify_24 Time to decode picture: 3.696s
        dwebp_justify_16 Time to decode picture: 3.779s
        dwebp_justify_8 Time to decode picture: 3.834s
        dwebp_32_neon Time to decode picture: 4.010s
        dwebp_24_neon Time to decode picture: 2.725s
        dwebp_16_neon Time to decode picture: 2.852s
        dwebp_8_neon Time to decode picture: 2.778s
        dwebp_32 Time to decode picture: 4.587s
        dwebp_24 Time to decode picture: 3.800s
        dwebp_16 Time to decode picture: 3.902s
        dwebp_8 Time to decode picture: 3.815s
        REFERENCE (HEAD) Time to decode picture: 3.818s

        x86_64:
        dwebp_justify_32 Time to decode picture: 0.473s
        dwebp_justify_24 Time to decode picture: 0.434s
        dwebp_justify_16 Time to decode picture: 0.450s
        dwebp_justify_8 Time to decode picture: 0.467s
        dwebp_32 Time to decode picture: 0.474s
        dwebp_24 Time to decode picture: 0.468s
        dwebp_16 Time to decode picture: 0.468s
        dwebp_8 Time to decode picture: 0.481s
        REFERENCE (HEAD) Time to decode picture: 0.436s

        i386:
        dwebp_justify_32 Time to decode picture: 0.723s
        dwebp_justify_24 Time to decode picture: 0.618s
        dwebp_justify_16 Time to decode picture: 0.626s
        dwebp_justify_8 Time to decode picture: 0.651s
        dwebp_32 Time to decode picture: 0.744s
        dwebp_24 Time to decode picture: 0.627s
        dwebp_16 Time to decode picture: 0.642s
        dwebp_8 Time to decode picture: 0.642s

Change-Id: Ie56c7235733a24f94fbfc2e4351aae36ec39c225
2013-02-14 15:46:12 +01:00
skal
3383885799 faster decoding (3%-6%)
. revamped the boolean decoder to use less shifts
. added some description and ASCII art as explanations too.
. clarified the types further (bit_t, lbit_t, range_t, etc.)
. changed the negative field 'missing_' into positive 'bits_'

Some stats, decoding some randomly encoded WebP files:

with USE_RIGHT_JUSTIFY:
  BITS=32 => 133 files, 50 loops => 7.3s (1.097 ms/file/iterations)
  BITS=24 => 133 files, 50 loops => 7.3s (1.097 ms/file/iterations)
  BITS=16 => 133 files, 50 loops => 7.4s (1.120 ms/file/iterations)
  BITS=8 => 133 files, 50 loops => 7.5s (1.128 ms/file/iterations)

without USE_RIGHT_JUSTIFY:
  BITS=32 => 133 files, 50 loops => 7.5s (1.131 ms/file/iterations)
  BITS=24 => 133 files, 50 loops => 7.6s (1.142 ms/file/iterations)
  BITS=16 => 133 files, 50 loops => 7.6s (1.143 ms/file/iterations)
  BITS=8 => 133 files, 50 loops => 7.6s (1.149 ms/file/iterations)

Change-Id: I9277fb051676c05582e9c7ea3cb5a4b2a3ffb12e
2013-02-14 15:42:58 +01:00
skal
5c3e381b2f Merge "add a -jpeg_like option" 2013-02-13 22:17:58 -08:00
Pascal Massimino
c23110467e remove unused declaration of VP8Zigzag
Change-Id: I80bdf4b692dcdad1fc2b0cfffcaebb5fef5dde34
2013-02-12 07:14:21 -08:00
James Zern
36152957af Merge "wicdec: add alpha support for paletted formats" 2013-02-06 23:33:24 -08:00
James Zern
c9f1649012 wicdec: add alpha support for paletted formats
Fixes issue #141.

Change-Id: I5d8163329a9e363da9db9d70d25edeb29da32e9e
2013-02-06 23:29:32 -08:00
James Zern
1262f81e37 Merge "wicdec: silence some warnings" 2013-02-06 23:21:26 -08:00
James Zern
e7ea61eb75 wicdec: silence some warnings
-Wformat, -Wmissing-field-initializers and size type related

Change-Id: I92b1c7cc485bf59f94b5c0f8bb2137d87604f831
2013-02-06 23:16:50 -08:00
skal
23c0f354a6 fix missing intptr_t->int cast for MSVC
Change-Id: I39acdfbe287ef7b7f615d59e0729aab161189bf9
2013-02-06 17:51:10 +01:00