Commit Graph

72 Commits

Author SHA1 Message Date
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