Commit Graph

596 Commits

Author SHA1 Message Date
James Zern
37a77a6bf4 remove some variable shadowing
Change-Id: I4348253ec6b50639095b22c4745dc26da0904466
2012-05-15 14:04:24 -07:00
Pascal Massimino
c6882c49e3 merge all tree processing into a single VP8LProcessTree()
-> 0.1% size improvement because we're calling OptimizeForRLE()
systematically now.

Change-Id: I03bd712175728e0d46323f375134cae5a241db4b
2012-05-14 05:49:02 -07:00
Pascal Massimino
9c7a3cf5e7 fix VP8LHistogramNumCodes to handle the case palette_code_bits == 0
-> lot of simplifications ensue and we should be able to get rid of
 ClearHuffmanTreeIfOnlyOneSymbol() too, in a subsequent patch.

Change-Id: Ic4c51d05e4b1970e37f94ffd85fae6a02e4a6422
2012-05-14 01:23:58 -07:00
pascal massimino
b5551d2e1d Merge "Added HuffmanTreeCode Struct for tree codes." 2012-05-14 01:23:08 -07:00
Vikas Arora
8b85d01c45 Added HuffmanTreeCode Struct for tree codes.
To represent tree codes (depth and bits array).

Change-Id: I87650886384dd10d95b16ab808dfd3bb573172bc
2012-05-14 13:50:35 +05:30
pascal massimino
093f76d831 Merge "Allocate single memory in GetHuffBitLengthsAndCodes." 2012-05-14 01:15:46 -07:00
Vikas Arora
41d8049451 Allocate single memory in GetHuffBitLengthsAndCodes.
Allocate big chunk of memory in GetHuffBitLengthsAndCodes, instead of allocating in a loop.
Also fixed the potential memleak.

Change-Id: Idc23ffa306f76100217304444191a8d2fef9c44a
2012-05-14 13:41:59 +05:30
Urvang Joshi
1b04f6d234 Correct size in VP8L header.
The size written in VP8L header should be without padding.
(Also clarified this code using consts).

Change-Id: Ic6583d760c0f52ef61924ab0330c65c668a12fdc
2012-05-14 12:49:16 +05:30
James Zern
2924a5aee6 Makefile.vc: split object lists based on directory
Change-Id: I4e189193817f26117e6459da078e2a72c9f3ef5f
2012-05-11 18:29:33 -07:00
Pascal Massimino
c8f24165b7 Merge "add assert(tokens)" 2012-05-11 01:46:45 -07:00
Pascal Massimino
432399472f add assert(tokens)
Change-Id: I952a5cd15ff0a80cff349293e6403357cbc7bd8d
2012-05-11 01:45:06 -07:00
Urvang Joshi
9f547450e0 Catch an error in DecodeImageData().
When we are at end-of-stream, but haven't decoded all pixels, we should
return an error.
Also remove an obsolete TODO.

Change-Id: I3fb1646136e706da536d537a54d1fa487a890630
2012-05-11 14:10:01 +05:30
Pascal Massimino
ac8e5e42d1 minor typo and style fix
Change-Id: If4927beb7a8f3c96379eee1fedc687a5046a6951
2012-05-11 01:17:31 -07:00
Pascal Massimino
9f566d1d36 clean-up around Huffman-encode
* refine doc
* use LUT for bit-reversal
* added assert
* Introduce HuffmanTreeToken instead of separate code/extra_bits arrays

Change-Id: I0fe0b50b55eb43a4be9f730b1abe40632a6fa7f0
2012-05-10 09:11:47 -07:00
Urvang Joshi
c579a71012 Introduce CHUNK_SIZE_BYTES in muxi.h.
Plus a style fix.

Change-Id: Id94df6c91a96598cb022c813e0981f542aebe982
2012-05-10 13:16:18 +05:30
Urvang Joshi
14757f8ae2 Make sure huffman trees always have valid symbols
- Symbols added to the tree are valid inside HuffmanTreeBuildExplicit().
- In HuffmanTreeBuildImplicit(), make sure 'root_symbol' is
valid in case of a single symbol tree.

Change-Id: I7de5de71ff28f41e2d6228b29ed8dd4a20813e99
2012-05-10 11:40:18 +05:30
James Zern
4105061840 makefile.unix: add support for building vwebp
standalone from the normal examples due to the additional OpenGL
dependencies.
$ make -f makefile.unix examples/vwebp

Change-Id: I7e3f0b5e0328230cb32acdd1e2a011cbbb80e55d
2012-05-09 15:47:00 -07:00
James Zern
48b37721fc Merge "fixed signed/unsigned comparison warning" 2012-05-09 14:10:32 -07:00
pascal massimino
57f696daef Merge "EncodeImageInternal: fix potential leak" 2012-05-09 13:58:55 -07:00
James Zern
d972cdf2dd EncodeImageInternal: fix potential leak
if histogram_image_size is reduced in when writing the histogram_image
the bit arrays would leak any remaining elements. store their element
count separately.

Change-Id: I710142a11ebd4325faec7bd65c2d2572aae19307
2012-05-09 13:49:10 -07:00
James Zern
5cd12c3df2 fixed signed/unsigned comparison warning
present in an assert in backward_references.h

Change-Id: Id9a528896689e51d784ad64fdc1ca052e97fe7a2
2012-05-09 13:45:26 -07:00
pascal massimino
cdca30d0b5 Merge "cosmetics: shorten long line" 2012-05-09 13:45:12 -07:00
James Zern
e025fb5546 cosmetics: shorten long line
Change-Id: I78bb19cf593730e74734e08d3d6de08a29bd9cbc
2012-05-09 13:42:31 -07:00
pascal massimino
22671ed6a3 Merge "enc/vp8l: fix double free on error" 2012-05-09 13:36:38 -07:00
pascal massimino
e1b9b05258 Merge "cosmetics: VP8LCreateHuffmanTree: fix indent" 2012-05-09 13:23:24 -07:00
James Zern
a8e725f800 enc/vp8l: fix double free on error
GetHuffBitLengthsAndCodes and the caller would both free
bit_lengths/bit_codes

Change-Id: I1b62ff727c82567f11c39a847f74fe765b5f527c
2012-05-09 12:56:07 -07:00
James Zern
27541fbdc0 cosmetics: VP8LCreateHuffmanTree: fix indent
Change-Id: I025fada400366f8937208e1f9b8df483cd53a942
2012-05-09 12:11:22 -07:00
James Zern
1d38b258b8 cwebp/windows: use MAKE_REFGUID where appropriate
Change-Id: If595c75a833d37df86c16bf926da5f032015c68e
2012-05-09 11:52:01 -07:00
James Zern
817ef6e9af Merge "cwebp: fix WIC/Microsoft SDK compatibility issue" 2012-05-09 11:50:05 -07:00
James Zern
902d3e3b5f cwebp: fix WIC/Microsoft SDK compatibility issue
Fixes issue #115.
Define local copies of GUID_WICPixelFormat24bppRGB &
GUID_WICPixelFormat32bppRGBA (and GUID_WICPixelFormat32bppBGRA for
symmetry) to avoid link issues when building against older versions of
the SDK.

Change-Id: I2a26be1b7fe6d970feb3211cf0059e5898e3028d
2012-05-09 11:47:15 -07:00
pascal massimino
89d803c423 Merge "Fix a crash due to wrong pointer-integer arithmetic." 2012-05-09 02:22:01 -07:00
pascal massimino
cb1bd741f9 Merge "Fix a crash in lossless decoder." 2012-05-09 02:21:13 -07:00
pascal massimino
de2fe20290 Merge "Some cleanup in VP8LCreateHuffmanTree() (and related functions CompareHuffmanTrees() and SetBitDepths()): - Move 'tree_size' initialization and malloc for 'tree + tree_pool' outside the loop. - Some renames/tweaks for readability." 2012-05-09 02:15:42 -07:00
Urvang Joshi
ce69177a41 Fix a crash due to wrong pointer-integer arithmetic.
[Basically, the condition "src - dist < data" can be wrongly evaluated
to be false if "src < dist" due to underflow. Instead, "src - data <
dist" is the correct condition, as "src > data" is always true and so
there would never be an underflow].

Change-Id: Ic9f64bfe76a9acae97abc1fb7c1f4868e81f1eb8
2012-05-09 14:40:06 +05:30
Urvang Joshi
e40a3684f5 Fix a crash in lossless decoder.
This was due to incorrect update of 'ok'.

Change-Id: I91edfb5682527e8bc7eaa10e635c0261edb016b6
2012-05-09 14:35:11 +05:30
Pascal Massimino
3927ff3abc remove unneeded error condition for WebPMuxNumNamedElements()
+ fix error message

Change-Id: If283ff6609ee0c5dff81a9c1c3f194faa729161c
2012-05-09 01:57:15 -07:00
Urvang Joshi
2c140e113c Some cleanup in VP8LCreateHuffmanTree() (and related functions
CompareHuffmanTrees() and SetBitDepths()):
- Move 'tree_size' initialization and malloc for 'tree + tree_pool'
  outside the loop.
- Some renames/tweaks for readability.

Change-Id: I5cb3cc942afac6e9f51a0b97c57ee897677a48a2
2012-05-09 14:26:01 +05:30
Pascal Massimino
861a5b7bc9 add support for animation
it's using glutTimerFunc() for trigger next frame's decoding

Reminder: how to build and use manually (integration in makefile.unix coming soon)

Unix:
cd libwebp
make -f makefile.unix
cd examples
cc -o vwebp vwebp.c -framework GLUT -framework OpenGL -I../src/ ../src/libwebp.a ../src/mux/libwebpmux.a

Mac + xcode:
cd libwebp
make -f makefile.unix
cd examples
cc -o vwebp vwebp.c -lglut -lGL -lpthread -lm -I../src/ ../src/libwebp.a ../src/mux/libwebpmux.a

Change-Id: Id49e87c26628c2b58ec221f6030cbd2e46a807b4
2012-05-09 01:23:39 -07:00
pascal massimino
eb5c16cc18 Merge "Set correct encode size in encoder's stats." 2012-05-09 00:37:25 -07:00
Pascal Massimino
4abe04a204 fix the return value and handle missing input file case.
Change-Id: I42a64fcf7587ff3a487115808e2cfa51cec0031d
2012-05-09 00:34:30 -07:00
Vikas Arora
2fafb85579 Set correct encode size in encoder's stats.
The current implementation doesn't take care one byte
signature and associated one byte padding (for odd sized chunk).

Change-Id: I35b81d0644818cdba38189aa48c75db5f92e68f4
2012-05-09 12:33:58 +05:30
Vikas Arora
e7167a2b95 Provide one entry point for backward references.
The new method VP8LGetBackwardReferences hides internal
heuristics used for choosing RLE or LZ77 based refs.
- Tuned VP8LHashChainFindCopy for better compression at higher Q.
- Refactored code.
- Removed the unused method VP8LVerifyBackwardReferences.

Change-Id: Ibb7bb072bab5a49a001577a20d88226f52e6c663
2012-05-09 12:13:06 +05:30
Vikas Arora
c4ccab6463 Print relevant lossless encoding stats in cwebp.
Change-Id: Ib8dfab498b1a05e49734bba2d3e72810343e8b0a
2012-05-09 11:31:41 +05:30
James Zern
e3302cfd73 GetHuffBitLengthsAndCodes: reduce level of indirection
arrays can be passed directly as only their members are being modified.
this also reduces the allocation for bit_codes[] by taking the
sizeof(type)=2 rather than sizeof(ptr)=4/8 in one case.

Change-Id: Idad20cead58c218b58d90b71699374fefd01cad9
2012-05-08 11:48:55 -07:00
James Zern
b5f2a9ed49 enc/vp8l: fix uninitialized variable warning
histogram_image_size could be unset if the code branches to the 'Error'
label.

Change-Id: I690b20f86372f19a47d159c2bec8fbf49553f0d5
2012-05-08 11:45:04 -07:00
James Zern
7885f8b25d makefile.unix: add lossless encoder files
comment out 'EXTRA_FLAGS += -DUSE_LOSSLESS_ENCODER' to disable

Change-Id: I75ead699c95644e319e7cbbf2a167d98e826fb7c
2012-05-08 11:25:28 -07:00
James Zern
1261a4c888 Merge "cosmetics" 2012-05-07 17:54:43 -07:00
James Zern
3926b5be3b Merge "dsp/cpu.c: Android: fix crash on non-neon arm builds" 2012-05-07 17:53:03 -07:00
James Zern
834f937f3c dsp/cpu.c: Android: fix crash on non-neon arm builds
add proper cpu-detection for Android targets

Fixes issue #118 (and is a better solution for #117).

based on patch by pepijn vaneeckhoudt

Change-Id: I6b00ea6d51ca658ccf6a3d55b87b99c01c6805be
2012-05-07 17:52:15 -07:00
James Zern
126e160672 cosmetics
vp8.[hc]:fix '*' placement in pointer types
vp8l.c: remove trailing ',' from enum
decode.h: fix stray WebPINew()

Change-Id: Id6749a14a12ed0a090649f28ef4267fda45a37a8
2012-05-07 17:47:51 -07:00