Commit Graph

9 Commits

Author SHA1 Message Date
matthewjheaney
6fa7c7611c Block parsing is now robust
Previously, parsing of a Block element was done inside its
constructor.  Parsing errors were handled via assertion checks,
but this only works in practice if there are no actual errors
in the file.

We did come across a file, however, that used EMBL-style lacing,
but the lacing was done incorrectly and so the parse asserted.
This isn't acceptable for a production system, and more a graceful
handling of parse errors was needed.

The code was restructured such that the Block object's ctor does
only trivial initialization of member variables.  A separate Parse
method was added, that is called after the object is constructed.
If the parse succeeds all is well, otherwise the object is destroyed
and the error is reported to the caller.

This commit fixes bug tracker issue #398, described here:

http://code.google.com/p/webm/issues/detail?id=398

Change-Id: Ib95ca95d0eec08cf670b308c461e42ed8345e890
2012-02-28 14:03:21 -05:00
Tom Finegan
d2327e2b65 sample_muxer: Cosmetics.
- Fix return values; use EXIT_FAILURE and EXIT_SUCCESS
  instead of -1 and 0.
- Use C++ versions of C library includes.

Change-Id: Ib3a36e799d6a91b7fea0f328480e977ef21ca260
2012-01-19 20:21:36 -05:00
Tom Finegan
69df730519 mkvmuxer: Add Init method to Cluster and Segment.
Remove asserts on the MkvWriter pointer in each constructor,
and assign the pointer in each Init method. Update Segment::Init
usage site in sample_muxer.

Change-Id: Id940f76b50dc15603742e76afc04cdffe0ec4990
2012-01-19 20:21:25 -05:00
Frank Galligan
73ad7bd83c Add output of elements to separate files.
Support outputting header, clusters, and cues to separate files.

Change-Id: Ia89bf59ddbddc094c3daf944123fd01630ae9193
2012-01-18 16:02:43 -05:00
Frank Galligan
2d3461b4b3 Add support for setting track numbers.
When adding tracks to the muxer the application can set the
track number.

Change-Id: Id4dbbfec5cd541b1354c03361a40a3d2d7f921b9
2011-08-15 15:29:20 -04:00
Frank Galligan
a09f15f00e Better support for audio only webm files.
Changed max_cluster_duration to 30 seconds so default command line
will not crash on audio only WebM files. Added support to the sample
muxer to output cues on the audio track. Created a muxer helper
function to clean up the code a little.

Change-Id: I2871836b64cef7defd10aa51a209b4abd9046832
2011-08-14 10:49:50 -04:00
Tom Finegan
6d99850e7c Build muxer and parser into a single library.
Makefile:
- Add a new target that makes a single libwebm.a instead of building
separate muxer and parser libraries.
- Update sample targets accordingly.

Visual Studio:
- Use a single project for muxing and parsing, and build a single library
name libwebm.lib.
- Update code generation settings (DLL -> static runtimes).
- Use C7 debug information format (instead of PDB)
- Disable minimal rebuild (C7 use causes warning otherwise).

Change-Id: Ie221d4ee02c93f98f2521757c08b75ecbf75f54f
2011-08-11 17:19:45 -04:00
Frank Galligan
52f0a92192 Added const to some pointers.
Updated some long assignment statements to indent 4 per the
coding guide. Added explicit calls to Close on the reader and
writer objects.

Change-Id: I149326c3a07543d7eb9323c702cf13852c5bc3c2
2011-07-18 14:28:12 -04:00
Frank Galligan
a3dd40877d Add support for muxing to libwebm.
Squashed commit of the following:

9f73b86 Updated code to Google C++ style guide.
8580901 Added support for linux.
fd0b59c Fixed segment size issue.
d51d5ef Added more Track and Video options.
0fc73fd Fixed issue where cue point was being written out on wrong
        track.
fcfdd07 Updated sample_muxer to read in a webm and output a webm file.
        Added some options to sample_muxer. Fixed writing out unknown
        size.
285c558 Added support for muxer guideline "Audio that matches video key
        frame should be in the same cluster." Added support for
        block_number in cue points. Added support for setting max
        cluster size.
f956dec Add support for setting the max duration for all clusters.
92ca53e Add support for Cues element.
d6b4cba Added typedefs for unsigned long long, long long, and unsigned
        char. Reformated some code.
1b1f8b2 Added support for SeekHead element. Added WriteVoidElement
        function.
8faa187 Add support for CodecPrivate. Add support for updating
        SegmentInfo duration. Add support for updating Segment size.
        Added new sample that swicthes the tracks.
1dd3555 Refactored some code. Check to see if track is a video track if
        starting a new cluster on a key-frame.
1bc8374 Refacotrs code so Cluster is in charge of wirting out its own
        data.
836cd74 Added basic cluster and simple_block support for writing frames.
cc48cc2 Add simple support for Audio tracks.
4efd614 Added support for using the encoded ID value for the elements.
fb8b5a6 Initial commit of libwebm muxer.

Removed switch_sample project. Fixed initialization order warnings on
Linux. Reformatted code to follow Google C++ style guide. Fixed Makefile.
Removed tester.cpp.

Change-Id: I4857042f804edb834be52787a7d5ccdd578b7275
2011-07-15 17:30:27 -04:00