Commit Graph

14 Commits

Author SHA1 Message Date
KongQun Yang 1223694249 Do not force earliest_presentation_time to 0 for VOD
Instead, the actual earliest presentation time is used except for
the first segment if there is an offset between presentation time
(pts) and decoding time (dts).

Chrome (as of v66) reports dts instead of pts in buffered ranges in
MSE API. To avoid breaking Chrome, the earliest_presentation_time
of the first segment is set to its dts as Chrome does not like negative
values for
  adjusted dts = dts + Period@start (0 for the first period)
                 - presentationTimeOffset (earliest_presentation_time).

Fixes #303.

Change-Id: I5ca80e05d5570961400499436f2bcc01f06e69e0
2018-04-20 13:58:01 -07:00
KongQun Yang 668335c647 Generate a more accurate time in Period@duration
Chrome internally uses time accurate to microseconds, which is
implemented per MSE spec (https://www.w3.org/TR/media-source/).

Generate Period@duration with better precision to avoid possible
buffered range gaps in Chrome (possibly other browsers too), which
may lead to other problems like playback stall.

b/74238961
Fixes #368.

Change-Id: I357a0f62b67f75c7ca044bb99ea4e3c8bbb6fecd
2018-04-20 13:39:40 -07:00
KongQun Yang 4194f0746e [DASH][WebM] Fix subsegmentAlignment not set problem
MuxerListener::OnNewSegment was not sent for WebM SingleSegmentSegmenter.

Change-Id: Iecae84e7a7c1a8a4d3f577158fa286b9c9959934
2018-01-31 19:58:15 +00:00
Kongqun Yang 5aaae303e8 Part one of supporting live profile with static mpd
- Added two new fields in MpdOptions: dash_profile and mpd_type
- Updated MpdBuilder to support LiveProfile with static mpd
- Command line arguments will be updated in the next CL

Issue #142

Change-Id: Ibd35e5c9e1b1ef98043392e3f04a0af4700135c1
2017-01-13 19:59:49 +00:00
Kongqun Yang 97fc9828f0 [WebM] Move index segment after init segment
Cues used to be generated in the end of the file; if http range
request is not supported, clients have to download the whole
file to get to the cues.

This CL updated TwoPassSingleSegmentSegmenter to write cues
after writing webm header.

This CL also updates libwebm dependency to latest.

Closes #159

Change-Id: Ic73548e1b872e6b13a37627707e7d0ff3e556877
2016-10-01 00:34:56 +00:00
Kongqun Yang f5dc908a0d Implement utility function DoubleToString
Implement our own DoubleToString as base::DoubleToString uses
third_party library dmg_fp.

Change-Id: I0d3d706cfd3de4f833b201110954419e585a21dd
2016-09-30 21:36:11 +00:00
Kongqun Yang 72c3a76699 Update repo url in version string
Issue #103

Change-Id: Iec7db3d155c81cf989f1078ed32692f8e037aa65
2016-05-24 21:55:45 +00:00
Jacob Trimble fe6775a509 Fixed off-by-one bug in WebM muxer
There was a bug in the single-segment WebM muxer where the index
range was incorrect.

Closes #99

Change-Id: I7cde98f9b5e88615fcf0ab406b22f65f0b14e15f
2016-04-01 16:26:41 -07:00
Jacob Trimble bb3918e62b Sets the duration of the last frame in WebM Cluster.
This also changes the way frames are written in the WebM muxer.  Now,
frames are stored and written on the next call to AddSample.  So each
call to AddSample will write the previous frame.  This is needed to
determine whether the given frame is the last one in the cluster.

Closes #70

Change-Id: Ic69ebad3c4729cdaa2017c9c7f497048501ac907
2016-01-27 20:08:08 +00:00
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
Rintaro Kuroiwa 5ad076d92c Fix schematron validation problem for live
- From DASH spec 2014, MPD@publishTime and Period@id are required for
  'dynamic' MPD.
- Period@id is always set to "0".
- MPD@publishTime is set to the time when the MPD is output.

Issue #55

Change-Id: I5e50aa11067176e69a2343fbc82ca42129703e1b
2016-01-14 16:53:25 -08:00
Jacob Trimble 61a8d4f09e Add codec private data to WebM muxer.
Added packager tests for WebM audio.  Also now only outputs the
language if it's not empty.  Fixed the packager tests for that.

b/26540606

Change-Id: Ica804bd710055bcaa2113f948d723dedd78ef909
2016-01-14 12:36:17 -08:00
KongQun Yang 27a6e31595 Fix test break in previous cl
- Golden files were not updated correctly.

Change-Id: I4f2bd92261b1e5ee789f5125db05d83bc9335a59
2016-01-13 14:37:44 -08:00
KongQun Yang 4b111a030e Update end to end test with vpx packaging
Change-Id: I70886693b5ad7d4c52170e57901c2437eba69214
2016-01-13 19:34:50 +00:00