Commit Graph

11 Commits

Author SHA1 Message Date
Kongqun Yang d501b457d0 Fix WebM keyframe detection in BlockGroup
The right way to detect the presence of a keyframe in a BlockGroup
is to look for the absence of the ReferenceBlock element [1].

Closes b/30433206

[1] https://matroska.org/technical/specs/index.html#ReferenceBlock

Change-Id: I2b3c8704cbabcd5cbee38448e5528425865561a4
2016-08-18 23:20:40 +00:00
Kongqun Yang 4f9c8ea781 Rename top level namespace to shaka
Issue #103

Change-Id: I67945c8ec6d2c178494d3b5400e5ec0170e9d115
2016-05-24 21:55:55 +00:00
KongQun Yang 2c3aed4842 Handle possible NewSampleEvent before ParserInitEvent
For WebM contents, it is possible that we may receive some NewSampleEvent
before receiving ParserInitEvent. This is because init event is fired
after analyzing a video block which could come after an audio block.

Also modified Flush() function to return a bool to indicate whether the
the flush is successful and whether the samples are handled correctly.

And added macro to ensure Flush() and Parse() results are handled.

Fixes #71

Change-Id: I2294d6f529f54e4578344916559bb1bc116c745a
2016-01-22 17:50:54 -08:00
KongQun Yang 22498e125a Add WebM decryption support
- Also refactor decryptor management code out of mp4_media_parser.cc
- Move decryptor managment logic to DecryptorSource class to make it
  available for webm as well
- Remove data_offset member from DecryptConfig which is not useful
- Add widevine_pssh_data.proto file

Closes #72

Change-Id: I1d32baf4013ebd3382b5372c7433fae5033a260e
2016-01-21 16:59:58 -08:00
KongQun Yang 940c3571aa WebMParser: set duration and dts correctly
- dts was not set earlier, although for WebM, we could assume that
  dts is the same as pts.
- Calculate block duration with the difference with the next block
  if duration is not encoded, even if track default_duration is set.
- Use track default_duration as a duration estimate for the last
  block.
- This also removes opus duration computation from encoded data.

Issues #67, #68

Change-Id: Icaa2769dcb2a89269ae014f44ad6a9262770aed2
2016-01-20 11:33:55 -08:00
KongQun Yang 94401d750a VP9 codec string from bitstream and subsample encryption support
- Parse vp9 bitstream to get vpx codec configuration
- Add subsample encryption for vp9
- Also fixed a bug in VP9 parser if segmentation update_map is enabled

Change-Id: I69dc97088aa38c94c6d37fdbcf3d9cfc942a3df6
2015-12-30 21:39:34 +00:00
KongQun Yang af7d6a7921 Estimate duration of last sample in cluster from next cluster
Change-Id: I7dbc4045d366bbfb0c12f9652ffe97b8fcf447cf
2015-12-15 22:34:01 +00:00
KongQun Yang afbab86399 Additional clean ups on comments and TODOs
Also rename WebMStreamParser to WebMMediaParser.

Change-Id: I0defca481f9d7774dd84810a5abd52902d5f47b6
2015-10-19 17:23:46 +00:00
KongQun Yang 5a4234f4da Update webm_cluster_parser to emit samples
Change-Id: I02436cfcb53b96210d6f683227cdabb994f4c01f
2015-10-16 15:46:36 -07:00
KongQun Yang 732e06fde0 Adjust webm code for packager
- Adding namespace edash_packager
- Fix includes
- (u)int(8|16|32|64) to (u)int(8|16|32|64)_t
- Remove MEDIA_EXPORT
- Remove MediaLog

Change-Id: Ifa116d966ab70ae1b3c299ae1f6f7044d7ae0cc6
2015-10-16 15:46:36 -07:00
KongQun Yang 87993c5dc7 Add WebM parser code from Chromium
Also includes its dependencies, like media/base/text_track_config.*
and media/filters/webvtt_util.h

Change-Id: I5b26245daf004da19b912b7c5b2c21ce4ba85688
2015-10-16 15:46:36 -07:00