Commit Graph

1219 Commits

Author SHA1 Message Date
James Zern
5e338e0b9a Merge changes I33e8a613,I8e8a7b44 into 0.3.0
* changes:
  automake: add reference to libwebp for mux/demux
  libwebp{,decoder}.pc: add pthread flags
2013-03-13 13:17:24 -07:00
James Zern
d9d0ea1bf9 Merge changes If21e3ec7,I991fc30b into 0.3.0
* changes:
  add libwebpmux.pc
  add libwebpdemux.pc
2013-03-13 12:53:32 -07:00
James Zern
627f5ca66b automake: add reference to libwebp for mux/demux
this allows DLLs to be built under mingw and sets up a more obvious
dependency in the shared objects

Change-Id: I33e8a6132a16ca49563492438a1b3b74be9ed6a1
2013-03-13 12:29:37 -07:00
skal
eef73d07a3 don't consolidate proba stats too often
adds a minimum count before FinalizeToken() is called for update.

Change-Id: I445be6a3e347620583d87c33067cefa656a25039
2013-03-13 13:50:08 +01:00
James Zern
05ec4cc2d3 libwebp{,decoder}.pc: add pthread flags
expands to e.g., -lpthread/-pthread, etc. if --enable-threading is used
and additional libs/flags are required

Change-Id: I8e8a7b44450bee32ddc58097e1e309d972b1092a
2013-03-12 23:02:12 -07:00
James Zern
1bfcf5bf42 add libwebpmux.pc
Change-Id: If21e3ec73f2eb451c6042d1aecda8d03259f601f
2013-03-12 22:58:37 -07:00
James Zern
26ca843d71 add libwebpdemux.pc
Change-Id: I991fc30b5287016066fae1ba11ec842c88994c41
2013-03-12 22:58:37 -07:00
James Zern
69e2590642 Merge "Tune Lossless compression for lower qualities." 2013-03-12 22:08:29 -07:00
Vikas Arora
0478b5d214 Tune Lossless compression for lower qualities.
This is required for WebP lossy+Alpha images, where Alpha channel is taking
60-70% of the compression (CPU) cycles.

Also evaluated on 1000 PNG corpus and overall compression speed
is 15-40% better for lossy (PNG+Alpha) compression.
The pure lossless compression numbers are almost same (or little
better) with this change.

Change-Id: I9e5ae7372ed6227a9a5b64cd9cff84c747195a57
2013-03-12 14:17:28 -07:00
Pascal Massimino
39f7586f31 add a mention of parallel alpha encoding in the NEWS
Change-Id: I3ef53fab45069b874faaa853c6f6c188e999ffda
2013-03-11 17:14:25 -07:00
James Zern
5a21d96741 Merge "1.5x-2x faster encoding for method 3 and up" 2013-03-11 17:14:18 -07:00
skal
9bfbdd144f 1.5x-2x faster encoding for method 3 and up
using token-buffer (that is: slightly more memory. O(output_size))

This change is ON by default. To return to previous behaviour, use
'cwebp -low_memory' or set config.low_memory to true.

Side-effect of this new mode: it forces 1 partition only (which was
default anyway), and makes some statistics about the bitstream
no longer available. cwebp will no longer report 'intra4-coeffs', etc.

This mode also doesn't work (yet) with multi-pass, and -low_memory
is currently forced for multi-pass.

also: reversed the flag: USE_TOKEN_BUFFER -> DISABLE_TOKEN_BUFFER
also: fixed the kAverageBytesPerMB estimate

Change-Id: I4ea80382038d6df4309663e0cb7bd88d9bca9cf1
2013-03-11 17:01:33 -07:00
Urvang Joshi
27dc741bda Correct frame options order in README.mux
Change-Id: Ia65f5f0f0d0fc50c3b360cd010112ae5ecece91a
2013-03-11 13:58:34 -07:00
Urvang Joshi
be2fd1735a Mux: fix a scenario with bad ANMF/FRGM size
When a ANMF/FRGM chunk size (read from file) is smaller than ANMF/FRGM header
size (which is constant and implicit), the parser should report an error.

Change-Id: I91d71889937f5133a97f1e83d5254cb2d7f37028
2013-03-08 17:34:20 -08:00
James Zern
19eb012c55 Merge "Demux: Add option to get frame count using GetI()" 2013-03-08 16:11:37 -08:00
James Zern
7368b8cbb2 Merge "WebPGetFeatures() out of if condition for clarity." 2013-03-08 16:07:47 -08:00
James Zern
f604c9a4a2 Merge "fix windows build" 2013-03-08 15:51:07 -08:00
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