Commit Graph

14 Commits

Author SHA1 Message Date
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 59f393779c Support v1 vp9 in iso-bmff
- Implemented according to v1.0 spec @ https://www.webmproject.org/vp9/mp4/
- v0 is no longer supported

Change-Id: I189c813d788400beda797eea7da943a83dfa7d79
2017-04-27 19:37:14 +00:00
Kongqun Yang d007ddf20b [MP4] Make outputs CMAF compatible
- Added flag --mp4_include_pssh_in_stream, default to true. If it is
  set to false, the encrypted mp4 stream will not include pssh.
- Align BytesOfProtectedData to multiple of 16 bytes for cenc.
- Set TrackHeader flag to kTrackEnabled | kTrackInMovie |
                          kTrackInPreview
- Move mvex to after trak, required by HLS
- Add cmfc/cmfs compatible brands except for avc3/hev1, where CMAF
  requires single initialization switching set which is not supported.
- Set duration to 0 in tkhd, mdhd, mvhd.

Also updated major_brand and compatible brands:
- Set major_brand to isom (iso-bmff media file format) and made dash
  a compatible brand
- Replaced compatible brand iso6 with iso8 since we use sthd for text
  tracks

Fixes b/36278260

Change-Id: I3cc5dd5aa1621714d517fe02fe3841d19a1a07f6
2017-03-30 15:33:39 -07:00
Kongqun Yang b891e0271e Make CENC behavior of VP8/9 in ISO-BMFF the same as in WebM
- Disable subsample encryption for VP8 in ISO-BMFF
- Apply block alignment to all subsamples for VP9 in ISO-BMFF,
  instead of just superframes.

Change-Id: I8dd31cc16e87abc4d538330eaff9acb0509497df
2017-03-21 23:12:57 +00:00
Kongqun Yang bee59bc2fc Enable generate_dash_if_iop_compliant_mpd by default
This will move ContentProtection element from Representation
to AdaptationSet.

Shaka Player already supports AdaptationSet switching
urn:mpeg:dash:adaptation-set-switching:2016;

ExoPlayer does not support it yet. Filed
https://github.com/google/ExoPlayer/issues/2431 to track the issue.

(ExoPlayer does not like having ContentProtection in Representation
anyway)

Closes b/34691105

Change-Id: I69d0a4d0e15a912a35c8b2686620419a28e4cc99
2017-02-09 11:12:21 -08:00
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 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 e0c5874d31 Update encrypted testing content to use common system id
- Also fix a bug in fixed key rotation with empty pssh_data.

Change-Id: I1110b839fc821c5c4778854c0b29032d3ee2d384
2016-07-11 20:10:31 +00:00
Kongqun Yang 68aa1397b0 VPCodecConfiguration box should inherit from FullBox instead of Box
Change-Id: If53c6cab009bdeadc37a1bac34272056a2b7d1dc
2016-05-25 23:59:16 +00:00
Kongqun Yang 72c3a76699 Update repo url in version string
Issue #103

Change-Id: Iec7db3d155c81cf989f1078ed32692f8e037aa65
2016-05-24 21:55:45 +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
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