Commit Graph

19 Commits

Author SHA1 Message Date
James Zern
de08d72741 cosmetics: normalize include guard comment
Change-Id: I0e08ec604aad8412cfe3d3670d773f4ae5650375
2018-08-22 14:46:53 -07:00
Pascal Massimino
545c147fd8 remove mention of fragment, frgm, FRGM, etc.
demux.h still has a 'fragment' field, for historical reasons.

bumped the ABI number in mux.h

Change-Id: I73299aa2e96b1f2e44f5cebfd84c597d1db12bff
2016-09-02 14:43:12 +02:00
James Zern
5d791d2603 format_constants.h: MKFOURCC, correct cast
'd' should be promoted to uint32 before shifting by 24

Change-Id: I6212661af3802709b0098af8402ed73a0d9373ee
2015-10-16 18:43:40 -07:00
James Zern
d640614d54 update copyright text
rather than symlink the webm/vpx terms, use the same header as libvpx to
reference in-tree files

based on the discussion in:
https://codereview.chromium.org/12771026/

Change-Id: Ia3067ecddefaa7ee01550136e00f7b3f086d4af4
2013-06-06 23:09:14 -07:00
Pascal Massimino
6cb4a61825 misc style fix
(cherry picked from commit 142c46291e)

Conflicts:
	src/webp/format_constants.h

Change-Id: Ib764cb09bd78ab6e72c60f495d55b752ad4dbe4d
2013-03-29 15:49:05 -07:00
James Zern
f933fd2a27 move WebPFeatureFlags declaration
from private format_constants.h to public mux_types.h
also do the reverse for MKFOURCC()

Change-Id: I3aa86b007e9dbfed37a170989164ac3a77de2bd5
2013-03-19 16:10:41 -07:00
Urvang Joshi
23782f95b4 Separate out mux and demux code and libraries:
- Separate out mux.h and demux.h
- muxtypes.h: new header for data types common to mux/demux
- Move some misc read/write utilities to utils/utils.h
- Remove some duplicate methods.
- Separate out mux/demux libraries

Change-Id: If9b9569b10d55d922ad9317ef51710544315d6de
2012-11-19 11:40:18 -08:00
Urvang Joshi
fa30c86323 Update mux code to match the spec wrt animation
- Allow a duration of 0
- Rename LOOP chunk to ANIM and add the background color field to it.
- Add a disposal method field for each animation frame.
- Modify webpmux.c binary interface to allow the input of background color
  and disposal methods. Also make '-loop' and '-bgcolor' arguments optional
  with some default values.

Change-Id: I807372a61cdb8a0d3080ae3552caf2848070bf4d
2012-11-07 11:43:06 -08:00
Urvang Joshi
a00a3daf5b Use 'frgm' instead of 'tile' in webpmux parameters
- Also, use the term 'fragments' instead of 'tiling' in code
- This makes code consistent with the spec.

Change-Id: Ibeccffc35db23bbedb88cc5e18e29e51621931f8
2012-11-06 16:09:10 -08:00
Urvang Joshi
f903cbab9a Chunk fourCCs for XMP/EXIF
Use separate fourCCs "XMP " and "EXIF" instead of a common "META"
Also, some refactorization in webpmux.c

Change-Id: Iad3337e5c1b81e785c60670ce28b1f536dd7ee31
2012-11-06 14:53:21 -08:00
Urvang Joshi
92f8059ce4 Rename some chunks:
TILE --> FRGM and FRM --> ANMF

Change-Id: I752f90b950413501aecb021a8f57882da0e01484
2012-10-30 15:02:15 -07:00
Pascal Massimino
2a3ab6f925 move MIN/MAX_HISTO_BITS to format_constants.h
(under the name MAX_HUFFMAN_BITS, since the specs read:
	int huffman_bits = ReadBits(3) + 2;
)

Change-Id: Ifc66576bbd8e48518d3d78a3f515f851cf1883dc
2012-07-16 19:11:54 -07:00
Urvang Joshi
6808e69db8 More spec/code matching in mux:
- Match offsets, duration, width/height for frames/tiles and enforce
some constraints.
- Note that this also means using 'int's instead of 'uint32_t's for
16-bit and 24-bit fields.

Change-Id: If0b229ad9fce296372d961104aa36731a3b1304b
2012-07-13 11:47:24 +05:30
Pascal Massimino
7f22bd2596 check limit of width * height is 32 bits
Update the RIFF-specs file too

Change-Id: I113a7e25da2f7a19c1344c1dc5d496127cfe2596
2012-07-03 05:42:13 -07:00
Pascal Massimino
e012dfd90f make width/height coding match the spec
* width/height in VP8X chunk is 24bit now
* Added some more constants #defines

Change-Id: I2f8ca7f965a247bccd341dd079ed2abf549c39d7
2012-06-28 00:20:28 -07:00
James Zern
fb4943bdf9 modify WebPParseHeaders to allow reuse by GetFeatures
moves the implementation to ParseHeadersInternal. this also allows
decoding to start at a VP8X sub-chunk, e.g. 'ALPH'.

Change-Id: I06791f87d90f888de32746ecb02705e4b0ff227a
2012-06-08 14:55:14 -07:00
Vikas Arora
069f903a08 Change in lossless bit-stream.
Change the lossless signature to 0x2f
Add 1 bit indicator for 'droppable (or trivial) alpha)'.
Add 3 bit lossless version (for future extension like yuv support).
Change the sub-resolution information to 3 bits implying range [2 .. 9]

Change-Id: Ic7b8c069240bbcd326cf5d5d4cd2dde8667851e2
2012-06-04 12:47:01 +05:30
Urvang Joshi
e75dc80516 Move some more defines to format_constants.h
Also remove some duplicate const/defines.

Change-Id: I0ec48866b874f546022d72e938fb65669b0b3211
2012-05-24 17:46:01 +05:30
Urvang Joshi
c13f663261 Move consts to internal header format_constants.h
Change-Id: Ic6180c16d0b4245680738992925e4608c593fbe8
2012-05-24 15:02:02 +05:30