Commit Graph

10 Commits

Author SHA1 Message Date
Aaron Vaage b2ce6322b6 Remove Test File Index in packager_test.py
Instead of using the test file's index in a list to create the output
name, use the original filename and the descriptor.

This caused some problems with file name collisions when some tests
were using the same name. That was fixed by changing the names. This
will go away once they are transitioned to use DiffDir like the other
tests.

Change-Id: I0a4c480406705ca63fcea61c86c67d4a5f739295
2018-03-06 21:38:04 +00:00
KongQun Yang ee9b7f6392 Calculate presentationTimeOffset and Period@duration from segments
Prefer timestamps from Video AdaptationSets if available - this avoids
possible video playback jitters due to gaps.

presentationTimeOffset is not applied to the first period as it may in
negative dts which Chrome does not like: https://crbug.com/398141.

It is safe to apply to subsequent periods as the actual offset applied
takes Period@start into consideration:

    offset = Period@start - presentationTimeOffset

The result timestamp with offset applied is close to Period@start, so
it is unlikely to result in a negative dts value.

Closes b/73899306.

Change-Id: If8361f5469610093b3aac6675754536ad7e83c4c
2018-03-01 08:55:10 -08:00
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 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 d08f6ae0cc Fix cbcs/cens behavior when applied to non video tracks
- Tracks other than video are protected using whole-block full-sample
  encryption as specified in ISO/IEC 23001-7:2016(E) 9.7, which is
  equivalent to a pattern of 1:0. This is different to the non pattern
  encryption counterparts.
- Also updated the code to allow the existence of other protection
  schemes in the original content, which will simply be ignored.
- The internal cryptor used by AesPatternCryptor should not use
  constant iv, add a DCHECK for that.
- Optimize AesPatternCryptor handling on the special pattern 1:0.

Change-Id: Idc704e7bc6b347741336f38c6d3620fc19392960
2016-06-08 17:02:26 +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 3ff74398df Fix two bugs in 'cbcs' and 'cens' handling and add tests
- BytesOfProtectedData in 'cens' SHALL also be 16-byte aligned
- Fix an incorrect box definition bug w.r.t to 'cbcs' and 'cens'
- Also add various protection scheme tests

Close #77
Close #78

Change-Id: I63c8d8b01ce16ed60affa97ec95fc62bc2da06df
2016-04-26 17:27:26 +00:00