Commit Graph

94 Commits

Author SHA1 Message Date
Urvang Joshi
688b265d5e AnimDecoder API: Add a GetDemuxer() method.
Change-Id: Ic6a86e8788f1a3e21d1287ece36d80d1153b8f5a
2015-11-11 10:36:17 -08:00
Urvang Joshi
1aa4e3d6ba WebPAnimDecoder: add an option to enable multi-threaded decoding.
Change-Id: I3ff12bc07fc5a1b57a6950afa0e5f54a12985e75
2015-11-11 10:34:42 -08:00
Urvang Joshi
3584abca16 AnimDecoder: option to decode to common color modes.
Change-Id: I77ddab9abe3c4b35a9bcfe4c90b3e43d3aef166d
2015-11-10 09:27:59 -08:00
Urvang Joshi
d39dc8f3cc Create a WebPAnimDecoder API.
This is designed for the simple use-case where one wants to decode all
frames one-by-one in order.

Also, use this API in anim_util library, which is in turn used by
anim_diff tool.

Change-Id: Ie8b653c04e867d40fd23321b3dd41b87689656c7
2015-09-02 16:23:10 -07:00
James Zern
4e2589ff81 demux: restore strict fragment flag check
inadvertently removed in:
demux: remove experimental FRGM parsing

Change-Id: Ia9bb8211e2153df51e7a01cabe8552524b8ed218
2014-12-23 12:47:06 -05:00
James Zern
012e623ddd demux: remove experimental FRGM parsing
references to fragments remain, along with some superfluous checks; these
will be removed in a future commit.

Change-Id: I39fe9314900ecbc5d60e5065b65fa1b4c668af63
2014-12-19 19:03:17 -08:00
James Zern
64ac51446d sync version numbers to 0.4.2 release
libwebp{,decoder} - 0.4.2
libwebp libtool - 5.2.0
libwebpdecoder libtool - 1.2.0

mux/demux - 0.2.2
libtool - 1.2.0

(cherry picked from commit eec5f5f121)
(cherry picked from commit 857578a811)

Change-Id: Ie9d10c68e28083674a8865ad8447b1a70dcea95d
2014-10-17 19:50:21 +02:00
James Zern
85213b9bbe bump version to 0.4.1
libwebp{,decoder} - 0.4.1
libwebp libtool - 5.1.0
libwebpdecoder libtool - 1.1.0

mux/demux - 0.2.1
libtool - 1.1.0

Change-Id: If593a198f802fd68c7dbbdbe0fc2612dbc44e2df
2014-07-23 17:17:25 -07:00
James Zern
7a93c000ee **/Makefile.am: remove unused AM_CPPFLAGS
only 1 of <lib>_CPPFLAGS and AM_CPPFLAGS is used, with the former
getting precedence when it's defined. configure's DEFAULT_INCLUDES is
covering what's necessary given the include paths are all source
relative.

Change-Id: I7d14076acd266b28a88a3d92bcc3d7165284d5f3
2014-06-12 11:59:05 -07:00
James Zern
32b3137936 configure: move config.h to src/webp/config.h
this change has the side-effect of using directory names in the
include, silencing a lint warning.

Change-Id: Ib91cf63a90534e32fadfa5c2372bfdb29f854d02
2014-06-10 23:42:00 -07:00
skal
af93bdd6bc use WebPSafe[CM]alloc/WebPSafeFree instead of [cm]alloc/free
there's still some malloc/free in the external example
This is an encoder API change because of the introduction
of WebPMemoryWriterClear() for symmetry reasons.

The MemoryWriter object should probably go in examples/ instead
of being in the main lib, though.
mux_types.h stil contain some inlined free()/malloc() that are
harder to remove (we need to put them in the libwebputils lib
and make sure link is ok). Left as a TODO for now.

Also: WebPDecodeRGB*() function are still returning a pointer
that needs to be free()'d. We should call WebPSafeFree() on
these, but it means exposing the whole mechanism. TODO(later).

Change-Id: Iad2c9060f7fa6040e3ba489c8b07f4caadfab77b
2014-03-27 15:50:59 -07:00
James Zern
8c524db84c bump version to 0.4.0
libwebp{,decoder} - 0.4.0
libwebp libtool - 5.0.0
libwebpdecoder libtool - 1.0.0

mux/demux - 0.2.0
libtool - 1.0.0

Change-Id: Idbd067f95a6af2f0057d6a63ab43176fcdbb767d
2013-12-18 19:20:00 -08:00
James Zern
5227d99146 drop: ifdef __cplusplus checks from C files
the prototypes are already marked in the headers

Change-Id: I172fe742200c939ca32a70a2299809b8baf9b094
2013-12-13 11:42:13 -08:00
James Zern
6198715e89 demux: split chunk parsing from ParseVP8X
makes the header and chunk parsing portions slightly more digestible

Change-Id: I48968468b2529506b830e96a2f13e8d29976179b
2013-11-16 11:06:43 -08:00
James Zern
d2e3f4e6b5 demux: add a tail pointer for chunks
a large number of non-frame chunks could slow the parse

Change-Id: I181bc73626e92263c3c5b2a6dc2bf6e6a0481d52
2013-11-16 10:57:09 -08:00
James Zern
87cffcc3c9 demux: cosmetics: s/has_frames/is_animation/
animation matches the flag name
s/has_fragments/is_fragmented/ to match.

Change-Id: I86c834e19bab6db6610ea2ccf900ab3ebffafa8a
2013-11-16 10:32:56 -08:00
James Zern
e18e66779b demux: strictly enforce the animation flag
if the flag is incorrectly set in a VP8L or VP8/ALPH single image file
the demux will now fail.

Change-Id: Id4d5f2d3f6922a29b442c5d3d0acbe3d679e468a
2013-11-14 16:01:36 -08:00
James Zern
c4f39f4a31 demux: cosmetics: remove a useless break
+ reword a comment

Change-Id: I52b64abcde2c8322b59c594f2f75b509ed367bff
2013-11-13 21:08:07 -08:00
James Zern
61cb884d79 demux: (non-exp) fail if the fragmented flag is set
otherwise make sure that all frames are marked as a fragment. there's
still some work to do with validation if fragments are expected to cover
the entire canvas.

Change-Id: Id59e95ac01b9340ba8c6039b0c3b65484b91c42f
2013-11-12 21:50:27 -08:00
Urvang Joshi
dde91fde96 Demux: Correct the extended format validation
Earlier "f = f->next_" was executing for both inner and outer loop, thus
skipping validation of some frames.

Change-Id: Ice5cdb4ff5da78384aa0573addd3a5e5efa0b10c
2013-10-23 17:25:23 -07:00
skal
d51f45f047 fix some warnings from static analysis
http://code.google.com/p/webp/issues/detail?id=138

Change-Id: I21470e965357cc14eab356e2c477c7846ff76ef2
2013-09-13 11:33:30 +02:00
Urvang Joshi
6284854bd5 Support for "Do not blend" in mux and demux libraries
Change-Id: I9566a8e2d059fe1ebd9ca99c7e13311bf3f8f281
2013-08-12 11:49:00 -07:00
Urvang Joshi
1693fd9b16 Demux: A new state WEBP_DEMUX_PARSE_ERROR
WebPDemuxPartial() returns NULL for both of the following cases:
- There was a parsing error.
- It doesn't have enough data to start parsing.

Now, one can differentiate between these two cases by checking the value
of 'state' returned by WebPDemuxPartial().

Change-Id: Ia2377f0c516b3fcfae475c0662c4932d2eddcd0b
2013-07-26 14:35:46 -07:00
Urvang Joshi
a03c3516cb Demux: WebPIterator now also denotes if the frame has alpha.
Change-Id: Ia300385a49c1ee5afa8f114f2560ee8d1c7664bb
2013-07-18 19:41:38 -07:00
James Zern
f5fbdee0ba demux: stricter image bounds check
- validate x/y offset vs. canvas size
- with single images verify image res. == canvas res.

Change-Id: I737451d7f75c0c43c88180a903d5227f1d90cec1
2013-07-02 16:17:28 -07:00
James Zern
5a92c1a5e9 bump version to 0.3.1
libwebp{,decoder} - 0.3.1
libwebp libtool - 4.3.0 (compatible release)
libwebpdecoder libtool - 0.1.0 (compatible release)

mux/demux - 0.1.1
libtool - 0.1.0 (compatible release)

Change-Id: Icc8329a6bcd9eea5a715ea83f1535a66d6ba4b58
2013-06-12 23:19:13 -07:00
James Zern
c7e89cbb02 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
(cherry picked from commit d640614d54)
2013-06-11 15:03:22 -07:00
Urvang Joshi
11edf5e24b Demux: Fix a potential memleak
Change-Id: Ic0dcac010da088b791c130be4abacdd8c31e92cf
(cherry picked from commit 94328d6457)
2013-06-11 15:00:43 -07:00
James Zern
6f18f12f99 demux: keep a frame tail pointer; used in AddFrame
this speeds up the parse of a file with a large number of frames.

Change-Id: Ibc61324eb50a04438f811a6f7787d378d763c104
2013-03-26 11:27:51 -07:00
James Zern
3e084f63f5 Merge "demux cosmetics: comments/rename internal function" into 0.3.0 2013-03-19 17:09:07 -07:00
James Zern
289bc47b65 libwebp{demux,mux}: install mux_types.h
required by demux.h and mux.h

Change-Id: Ib33cee1d95e575233204e70b62caf7a6366772c7
2013-03-19 14:54:04 -07:00
James Zern
4c18e80cf7 demux cosmetics: comments/rename internal function
ParseFrame -> ParseAnimationFrame

Change-Id: I27538927d16285e0793be5be78b0f15f4155dd83
2013-03-19 13:55:29 -07:00
James Zern
d851cd1d85 demux: make the parse a bit more strict
* VP8L shouldn't have an alpha chunk
 * expect an animation to only contain frames, not a mix of image chunks
 * enforce ANIM/ANMF order
 * expect a full frame in a complete file

Change-Id: I953a8b6058f9bc00f1d042635548f158abdf6fce
2013-03-16 16:37:31 -07:00
James Zern
252320e287 demux: disable fragment parsing
put this feature under WEBP_EXPERIMENTAL_FEATURES

Change-Id: I6405c5e6bed3ad1196aa1d111c83cca4c70c4c41
2013-03-13 13:54:53 -07:00
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
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
James Zern
26ca843d71 add libwebpdemux.pc
Change-Id: I991fc30b5287016066fae1ba11ec842c88994c41
2013-03-12 22:58:37 -07:00
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
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
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
Urvang Joshi
b01681a93f Fix for demuxer frame iteration:
Return error in WebPDemuxGetFrame() when static method GetFrame()
returns NULL.

Change-Id: Idbc54037047c3df75209ac67ff8bede3f83042be
2013-01-29 10:58:04 -08:00
Urvang Joshi
56c12aa698 Demuxer creation fix:
If it's not a partial file and parser returns PARSE_NEED_MORE_DATA, then
consider it to be PARSE_ERROR.

Change-Id: Id652a345bd2a9f574970272dd0a00517de113215
2013-01-29 10:53:52 -08:00
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